*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--color-bg);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizelegibility;
}

button,
input,
textarea,
select {
  color: inherit;
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: var(--color-primary-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

button {
  border: 0;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 1;
}

:focus-visible {
  border-radius: 4px;
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

::selection {
  background: var(--color-primary-strong);
  color: var(--color-on-primary);
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 800;
  transform: translateY(-160%);
  transition: transform 150ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.app-shell {
  min-height: 100vh;
  min-height: 100dvh;
}

.mobile-header {
  display: none;
}

.sidebar {
  position: fixed;
  z-index: 20;
  inset: 0 auto 0 0;
  display: flex;
  width: var(--sidebar-width);
  flex-direction: column;
  overflow-y: auto;
  border-right: 1px solid var(--color-border);
  background: var(--color-sidebar);
  backdrop-filter: blur(16px);
}

.sidebar-brand {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-brand > a,
.mobile-brand {
  display: flex;
  align-items: center;
  min-height: 44px;
  gap: 10px;
  color: var(--color-text);
  text-decoration: none;
}

.sidebar-brand strong {
  display: block;
  font-size: 15px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.sidebar-brand small {
  display: block;
  margin-top: 3px;
  color: var(--color-text-muted);
  font-size: 9px;
  line-height: 1.3;
}

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 11px;
  background:
    linear-gradient(145deg, var(--color-brand-tint), var(--color-brand-tint)),
    var(--color-surface);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-text) 13%, transparent);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 800;
}

.brand-mark--small {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  font-size: 16px;
}

.icon-button {
  display: inline-grid;
  width: 42px;
  height: 42px;
  cursor: pointer;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-soft);
  font-size: 20px;
}

.icon-button:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.sidebar-close {
  display: none;
}

.course-heading {
  padding: 20px 16px 18px;
  border-bottom: 1px solid var(--color-border);
}

.course-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.course-title-row div {
  min-width: 0;
}

.course-title-row small,
.course-title-row strong {
  display: block;
  line-height: 1.35;
}

.course-title-row small {
  color: var(--color-text-muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.course-title-row strong {
  margin-top: 2px;
  overflow: hidden;
  font-size: 13px;
  text-overflow: ellipsis;
}

.language-badge {
  display: inline-grid;
  min-width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.language-badge--javascript {
  border: 1px solid var(--color-language-javascript);
  background: color-mix(in srgb, var(--color-language-javascript) 10%, var(--color-bg));
  color: var(--color-language-javascript);
}

.language-badge--html {
  border: 1px solid var(--color-language-html);
  background: color-mix(in srgb, var(--color-language-html) 10%, var(--color-bg));
  color: var(--color-language-html);
}

.language-badge--css {
  border: 1px solid var(--color-language-css);
  background: color-mix(in srgb, var(--color-language-css) 10%, var(--color-bg));
  color: var(--color-language-css);
}

.language-badge--java {
  border: 1px solid var(--color-language-java);
  background: color-mix(in srgb, var(--color-language-java) 10%, var(--color-bg));
  color: var(--color-language-java);
}

.sidebar-progress-label {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  color: var(--color-text-muted);
  font-size: 10px;
  font-weight: 700;
}

.progress-track {
  width: 100%;
  height: 5px;
  margin-top: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--color-secondary);
}

.progress-track > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-strong));
  transition: width 240ms ease;
}

.lesson-nav {
  padding: 18px 10px 24px;
}

.language-nav {
  padding: 14px 10px;
  border-bottom: 1px solid var(--color-border);
}

.course-category + .course-category {
  margin-top: 12px;
}

.course-category-title {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin: 0 6px 5px;
  color: var(--color-text-muted);
  font-size: 10px;
}

.course-category-title small,
.course-category-empty {
  color: var(--color-text-muted);
  font-size: 10px;
}

.course-category-empty {
  margin: 0 6px;
}

.language-nav ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.language-nav-link {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(30px, auto) minmax(0, 1fr);
  gap: 6px;
  align-items: center;
  padding: 7px 6px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  text-decoration: none;
}

a.language-nav-link:hover {
  background: var(--color-hover);
  color: var(--color-text);
}

.language-nav-link.is-current {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
  color: var(--color-text);
}

.language-nav-link.is-disabled {
  opacity: 1;
}

.language-nav-badge {
  display: inline-grid;
  min-width: 30px;
  height: 24px;
  padding: 0 4px;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 800;
}

.language-nav-badge--javascript {
  border-color: var(--color-language-javascript);
  color: var(--color-language-javascript);
}

.language-nav-badge--html {
  border-color: var(--color-language-html);
  color: var(--color-language-html);
}

.language-nav-badge--css {
  border-color: var(--color-language-css);
  color: var(--color-language-css);
}

.language-nav-badge--java {
  border-color: var(--color-language-java);
  color: var(--color-language-java);
}

.language-nav-copy {
  min-width: 0;
}

.language-nav-copy strong,
.language-nav-copy small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.language-nav-copy strong {
  font-size: 11px;
  line-height: 1.35;
}

.language-nav-copy small {
  margin-top: 1px;
  color: var(--color-text-muted);
  font-size: 10px;
  line-height: 1.25;
}

.nav-label {
  margin: 0 8px 8px;
  color: var(--color-text-muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.lesson-nav ol {
  display: grid;
  gap: 3px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.lesson-link {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 9px;
  align-items: center;
  padding: 9px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  text-decoration: none;
}

.lesson-link:hover {
  background: var(--color-hover);
  color: var(--color-text);
}

.lesson-link.is-current {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
  color: var(--color-text);
}

.lesson-number {
  display: inline-grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-style: normal;
  font-weight: 700;
}

.lesson-number.is-complete {
  border-color: var(--color-accent);
  background: var(--color-success-bg);
  color: var(--color-accent);
}

.lesson-link span:last-child {
  min-width: 0;
}

.lesson-link strong,
.lesson-link small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lesson-link strong {
  font-size: 11px;
  line-height: 1.4;
}

.lesson-link small {
  margin-top: 2px;
  color: var(--color-text-muted);
  font-size: 9px;
  line-height: 1.3;
}

.sidebar-backdrop {
  position: fixed;
  z-index: 15;
  inset: 0;
  display: none;
  cursor: pointer;
  background: color-mix(in srgb, var(--color-shadow) 64%, transparent);
  opacity: 0;
}

.main-area {
  min-height: 100vh;
  min-height: 100dvh;
  margin-left: var(--sidebar-width);
}

.lesson-container {
  width: min(calc(100% - 64px), var(--content-width));
  margin: 0 auto;
  padding: 68px 0 36px;
}

.lesson-hero {
  position: relative;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--color-border);
}

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: var(--color-primary-strong);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.eyebrow span[aria-hidden] {
  color: var(--color-text-muted);
}

.lesson-hero h1 {
  margin: 13px 0 12px;
  color: var(--color-text);
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.2;
  letter-spacing: -0.045em;
  overflow-wrap: anywhere;
}

.lesson-summary {
  max-width: 650px;
  margin: 0;
  color: var(--color-text-soft);
  font-size: 17px;
  line-height: 1.75;
}

.essential-question {
  display: flex;
  gap: 13px;
  align-items: center;
  padding: 16px 18px;
  margin-top: 26px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-secondary);
}

.essential-question > span {
  display: inline-grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 10px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 800;
}

.essential-question small,
.essential-question strong {
  display: block;
}

.essential-question small,
.essential-question h2 {
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.essential-question h2 {
  margin: 0 0 4px;
  scroll-margin-top: 88px;
}

.lesson-overview-summary {
  color: var(--color-text);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.8;
}

.lesson-overview-summary p {
  margin: 0;
}

.essential-question strong {
  margin-top: 2px;
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.55;
}

.lesson-body {
  padding: 34px 0 18px;
  color: var(--color-text);
  overflow-wrap: anywhere;
  word-break: keep-all;
}

.lesson-body h2,
.lesson-body h3,
.lesson-body h4 {
  color: var(--color-text);
  line-height: 1.35;
  scroll-margin-top: 28px;
}

.lesson-container .lesson-body :is(h2, h3, h4) {
  scroll-margin-top: 88px;
}

.lesson-body h2 {
  padding-top: 24px;
  margin: 26px 0 14px;
  font-size: 24px;
  letter-spacing: -0.025em;
}

.lesson-body h2:first-child {
  padding-top: 0;
  margin-top: 0;
}

.lesson-body h3 {
  margin: 28px 0 10px;
  font-size: 18px;
}

article.lesson-body > h2:not(:first-child) {
  margin-top: 64px;
  padding-top: 38px;
  border-top: 1px solid var(--color-border);
}

article.lesson-body > hr + h2:not(:first-child) {
  margin-top: 48px;
  padding-top: 0;
  border-top: 0;
}

article.lesson-body > h3 {
  margin-top: 36px;
}

.lesson-body h4 {
  margin: 22px 0 8px;
  font-size: 16px;
}

.lesson-body p {
  margin: 0 0 16px;
}

.lesson-body ul,
.lesson-body ol {
  display: grid;
  gap: 8px;
  padding-left: 1.35rem;
  margin: 0 0 20px;
}

.lesson-body li {
  padding-left: 4px;
}

.lesson-body li::marker {
  color: var(--color-primary-strong);
  font-weight: 800;
}

.lesson-body strong {
  color: var(--color-text);
}

.lesson-body :not(pre) > code {
  padding: 0.13em 0.38em;
  border: 1px solid var(--color-inline-code-border);
  border-radius: 5px;
  background: var(--color-inline-code-bg);
  color: var(--color-inline-code);
  font-family: var(--font-mono);
  font-size: 0.88em;
  overflow-wrap: anywhere;
}

.lesson-body blockquote {
  padding: 18px 20px;
  margin: 20px 0;
  border: 1px solid var(--color-border-strong);
  border-left: 3px solid var(--color-primary-strong);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-brand-tint);
  color: var(--color-text-soft);
}

.lesson-body hr {
  height: 1px;
  margin: 34px 0;
  border: 0;
  background: var(--color-border);
}

/* 여러 주제를 합친 교안에서 주제가 바뀌는 곳을 절 구분선보다 굵게 나눈다. */
article.lesson-body > hr {
  height: 3px;
  margin: 88px 0 0;
  border-radius: 2px;
  background: var(--color-border-strong);
}

.lesson-illustration {
  overflow: hidden;
  margin: 22px 0 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.lesson-illustration img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.code-card {
  overflow: hidden;
  margin: 22px 0 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-code);
  box-shadow: var(--shadow-soft);
}

.code-card:focus-within {
  border-color: var(--color-border-strong);
  box-shadow: 0 0 0 1px var(--color-border-strong);
}

.code-card figcaption {
  display: flex;
  min-height: 42px;
  align-items: center;
  justify-content: space-between;
  padding: 7px 9px 7px 16px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.code-card figcaption > span {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.copy-button {
  cursor: pointer;
  padding: 6px 9px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-hover);
  color: var(--color-text-muted);
  font-size: 10px;
  font-weight: 700;
}

.copy-button:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.code-card pre {
  --syntax-gutter: 20px;

  margin: 0;
  overflow: auto;
  padding: 20px;
  tab-size: 2;
}

.syntax-code:focus-visible {
  border-radius: 0;
  outline-offset: -4px;
}

.code-card code {
  display: block;
  width: max-content;
  min-width: 100%;
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.72;
  /* 줄마다 블록인 .code-line 사이의 줄바꿈 문자가 빈 줄로 보이지 않게 하고, 들여쓰기는 .code-line에서 유지한다. */
  white-space: normal;
}

.code-card .code-line {
  white-space: pre;
}

.code-line {
  display: block;
  min-height: 1.72em;
  padding-right: var(--syntax-gutter, 0px);
  padding-left: var(--syntax-gutter, 0px);
  margin-right: calc(var(--syntax-gutter, 0px) * -1);
  margin-left: calc(var(--syntax-gutter, 0px) * -1);
  border-left: 2px solid transparent;
  transition:
    color 120ms ease,
    background-color 120ms ease,
    border-color 120ms ease,
    opacity 120ms ease;
}

.code-token--comment {
  color: var(--color-syntax-comment);
  font-style: italic;
}

.code-token--keyword {
  color: var(--color-syntax-keyword);
}

.code-token--tag {
  color: var(--color-syntax-tag);
}

.code-token--property {
  color: var(--color-syntax-property);
}

.code-token--string {
  color: var(--color-syntax-string);
}

.code-token--number {
  color: var(--color-syntax-number);
}

.code-token--literal {
  color: var(--color-syntax-literal);
}

.code-token--builtin {
  color: var(--color-syntax-builtin);
}

.code-token--function {
  color: var(--color-syntax-function);
}

.code-token--selector {
  color: var(--color-syntax-selector);
}

.code-token--operator {
  color: var(--color-syntax-operator);
}

@media (hover: hover) and (pointer: fine) {
  .syntax-code code:hover .code-line:not(:hover) {
    opacity: 0.95;
  }

  .syntax-code .code-line:hover {
    border-left-color: var(--color-border-strong);
    background: linear-gradient(90deg, var(--color-brand-tint), transparent 72%);
    color: var(--color-text);
  }
}

.table-scroll {
  max-width: 100%;
  margin: 20px 0 26px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.lesson-body table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  background: var(--color-surface);
  font-size: 13px;
}

.lesson-body th,
.lesson-body td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.lesson-body th {
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 11px;
}

.lesson-body tr:last-child td {
  border-bottom: 0;
}

.completion-card {
  padding: 22px;
  margin-top: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.completion-card.is-complete {
  border-color: var(--color-accent);
  background: var(--color-success-bg);
}

.completion-card > div {
  display: flex;
  gap: 14px;
  align-items: center;
}

.completion-icon {
  display: inline-grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 12px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
}

.is-complete .completion-icon {
  border-color: var(--color-accent);
  background: var(--color-success-bg);
  color: var(--color-accent);
}

.completion-question h2,
.completion-question p {
  margin: 0;
}

.completion-question h2 {
  margin-top: 5px;
  font-size: 18px;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.lesson-self-check-prompt {
  margin: 20px 0 0;
}

.lesson-answer-guidance,
.completion-status {
  color: var(--color-text-soft);
  font-size: 13px;
  line-height: 1.7;
}

.lesson-answer-guidance {
  margin: 6px 0 14px;
}

.lesson-answer {
  min-width: 0;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.lesson-answer > summary {
  min-height: 44px;
  padding: 14px 16px;
  font-size: 14px;
  font-weight: 750;
  cursor: pointer;
}

.lesson-answer[open] > summary {
  border-bottom: 1px solid var(--color-border-strong);
}

.lesson-answer .lesson-body {
  min-width: 0;
  padding: 20px 16px;
}

.lesson-toggle {
  min-width: 0;
  margin: 12px 0 20px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.lesson-toggle > summary {
  min-height: 44px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 750;
  cursor: pointer;
}

.lesson-toggle[open] > summary {
  border-bottom: 1px solid var(--color-border-strong);
}

.lesson-toggle-body {
  min-width: 0;
  padding: 4px 16px;
}

.completion-actions {
  flex-wrap: wrap;
  margin-top: 22px;
}

.completion-status {
  flex: 1 1 260px;
  min-width: 0;
  margin: 0;
}

.button {
  min-height: 42px;
  cursor: pointer;
  padding: 10px 15px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  white-space: normal;
  text-decoration: none;
}

.button--primary {
  background: var(--color-primary);
  box-shadow: none;
  color: var(--color-on-primary);
}

.button--primary:hover {
  background: var(--color-primary-hover);
}

.button--secondary {
  border-color: var(--color-border-strong);
  background: var(--color-hover);
  color: var(--color-text-soft);
}

.button--secondary:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.lesson-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}

.pagination-link {
  display: flex;
  min-width: 0;
  gap: 12px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-soft);
  text-decoration: none;
  transition: border-color 150ms ease, background 150ms ease, transform 150ms ease;
}

.pagination-link:hover {
  border-color: var(--color-border-strong);
  background: var(--color-surface);
  transform: translateY(-1px);
}

.pagination-link--next {
  flex-direction: row-reverse;
  text-align: right;
}

.pagination-link > span:first-child {
  color: var(--color-primary-strong);
  font-size: 19px;
}

.pagination-link > span:last-child {
  min-width: 0;
}

.pagination-link small,
.pagination-link strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pagination-link small {
  color: var(--color-text-muted);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.pagination-link strong {
  margin-top: 2px;
  font-size: 12px;
}

.page-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 30px 2px 0;
  margin-top: 36px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 10px;
}

.page-footer span {
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-weight: 800;
}

.page-footer p {
  margin: 0;
}

.review-nav {
  padding: 18px 10px 24px;
  border-top: 1px solid var(--color-border);
}

.review-link {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 9px;
  align-items: center;
  padding: 9px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  text-decoration: none;
}

.review-link:hover {
  background: var(--color-hover);
  color: var(--color-text);
}

.review-link.is-current {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
  color: var(--color-text);
}

.review-link-icon {
  display: inline-grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.review-link span:last-child {
  min-width: 0;
}

.review-link strong,
.review-link small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quest-nav {
  padding: 18px 10px 24px;
  border-top: 1px solid var(--color-border);
}

.quest-link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 9px;
  align-items: center;
  padding: 9px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  text-decoration: none;
}

.quest-link:hover {
  background: var(--color-hover);
  color: var(--color-text);
}

.quest-link.is-current {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
  color: var(--color-text);
}

.quest-link-icon {
  display: inline-grid;
  width: 32px;
  height: 26px;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 800;
}

.quest-link span:last-child {
  min-width: 0;
}

.quest-link strong,
.quest-link small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quest-link strong {
  font-size: 11px;
  line-height: 1.4;
}

.quest-link small {
  margin-top: 2px;
  color: var(--color-text-muted);
  font-size: 9px;
  line-height: 1.3;
}

.coding-test-nav {
  padding: 18px 10px 24px;
  border-top: 1px solid var(--color-border);
}

.coding-test-nav-link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 9px;
  align-items: center;
  padding: 9px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  text-decoration: none;
}

.coding-test-nav-link:hover {
  background: var(--color-hover);
  color: var(--color-text);
}

.coding-test-nav-link.is-current {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
  color: var(--color-text);
}

.coding-test-nav-icon {
  display: inline-grid;
  width: 32px;
  height: 26px;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 800;
}

.coding-test-nav-link span:last-child {
  min-width: 0;
}

.coding-test-nav-link strong,
.coding-test-nav-link small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.coding-test-nav-link strong {
  font-size: 11px;
  line-height: 1.4;
}

.coding-test-nav-link small {
  margin-top: 2px;
  color: var(--color-text-muted);
  font-size: 9px;
  line-height: 1.3;
}

.review-link strong {
  font-size: 11px;
  line-height: 1.4;
}

.review-link small {
  margin-top: 2px;
  color: var(--color-text-muted);
  font-size: 9px;
  line-height: 1.3;
}

.review-container {
  width: min(calc(100% - 64px), var(--content-width));
  min-width: 0;
  margin: 0 auto;
  padding: 58px 0 48px;
}

.review-header {
  padding-bottom: 28px;
}

.review-scope {
  width: min(720px, calc(100% - 32px));
  max-height: calc(100dvh - 48px);
  overflow: auto;
  display: grid;
  gap: 16px;
  margin: auto;
  padding: 20px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
}

.review-scope:not([open]) { display: none; }
.review-scope::backdrop { background: var(--color-bg); opacity: .8; }
.review-scope-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.review-scope-heading h2 { margin: 0; font-size: 20px; line-height: 1.4; }
.review-scope-heading .button { flex-shrink: 0; }
.review-scope-trigger { min-height: 38px; padding: 8px 10px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); font-size: 14px; line-height: 1.5; cursor: pointer; }

.review-scope select {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 10px;
  color: var(--color-text);
  border: 1px solid var(--color-text-muted);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.review-scope p,
.quiz-learning-objective,
.quiz-lesson-reference {
  color: var(--color-text-soft);
  font-size: 13px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.review-scope p {
  margin: 0;
}

.quiz-lesson-reference a {
  color: var(--color-primary-strong);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.lesson-review-link {
  margin: 24px 0;
}

.lesson-review-link .button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  white-space: normal;
}

.lesson-objectives {
  color: var(--color-text-soft);
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.lesson-objectives p {
  margin: 12px 0;
}

.lesson-objectives h2 {
  font-size: 1rem;
  margin-top: 24px;
  color: var(--color-text);
  scroll-margin-top: 88px;
}

.lesson-objectives li,
.quiz-result-items li {
  margin-top: 10px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.quiz-result-items {
  padding-left: 24px;
}

.review-header h1,
.review-result-header h1 {
  overflow-wrap: anywhere;
  margin: 12px 0 10px;
  color: var(--color-text);
  font-size: clamp(2rem, 5vw, 2.65rem);
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.review-history {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 14px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.review-history strong {
  color: var(--color-text-soft);
}

.review-scope .review-history {
  margin-top: 8px;
}

.review-scope-range label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 700; }
.review-scope-record h2 { margin: 0; font-size: 14px; }
.review-scope-record .review-history { font-size: 14px; line-height: 1.6; }
.review-scope-record .quiz-result-actions { justify-content: flex-start; margin-top: 10px; }
.review-scope-storage { padding-top: 12px; border-top: 1px solid var(--color-border); font-size: 14px; line-height: 1.6; }
.review-scope-storage p { margin-top: 6px; font-size: 14px; line-height: 1.6; }

.review-progress-copy {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  margin-top: 24px;
  color: var(--color-text-muted);
  font-size: 12px;
  font-weight: 700;
}

.review-progress-copy strong {
  color: var(--color-text);
}

.review-progress-track {
  width: 100%;
  height: 7px;
  margin-top: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--color-secondary);
}

.review-progress-track > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-strong));
  transition: width 240ms ease;
}

.quiz-card,
.quiz-result-card {
  min-width: 0;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, var(--color-brand-tint), transparent 46%),
    var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.quiz-question-meta {
  margin: 0 0 9px;
  color: var(--color-primary-strong);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.055em;
}

.quiz-card h2 {
  overflow-wrap: anywhere;
  margin: 0;
  color: var(--color-text);
  font-size: clamp(1.25rem, 3.8vw, 1.65rem);
  letter-spacing: -0.025em;
  line-height: 1.45;
  scroll-margin-top: 84px;
}

.quiz-code {
  min-width: 0;
  margin: 24px 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-code);
}

.quiz-code figcaption {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.quiz-code pre {
  --syntax-gutter: 20px;

  max-width: 100%;
  margin: 0;
  overflow: auto;
  padding: 20px;
  tab-size: 2;
}

.quiz-code code {
  display: block;
  width: max-content;
  min-width: 100%;
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.72;
  /* 교안 코드 카드와 같이 .code-line 사이의 줄바꿈 문자가 빈 줄로 보이지 않게 한다. */
  white-space: normal;
}

.quiz-code .code-line {
  white-space: pre;
}

.quiz-card :not(pre) > code {
  padding: 0.12em 0.34em;
  border: 1px solid var(--color-inline-code-border);
  border-radius: 0.35rem;
  color: var(--color-inline-code);
  background: var(--color-inline-code-bg);
  font-family: var(--font-mono);
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.quiz-form,
.quiz-options,
.quiz-option-content {
  min-width: 0;
}

.quiz-options {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 26px 0 0;
  border: 0;
}

.quiz-options legend {
  width: 100%;
  padding: 0 0 11px;
  color: var(--color-text-soft);
  font-size: 13px;
  font-weight: 700;
}

.quiz-option {
  position: relative;
  min-width: 0;
}

.quiz-option input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.quiz-option label {
  display: flex;
  min-width: 0;
  gap: 13px;
  align-items: flex-start;
  padding: 15px 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text-soft);
  cursor: pointer;
  transition: border-color 150ms ease, background 150ms ease, transform 150ms ease;
}

.quiz-option label:hover {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
}

.quiz-option input:focus-visible + label {
  border-color: var(--color-primary-strong);
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.quiz-option input:disabled + label {
  cursor: default;
}

.quiz-option input:disabled + label:hover {
  transform: none;
}

.quiz-option.is-selected label {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
  color: var(--color-text);
}

.quiz-option.is-correct label {
  border-color: var(--color-accent);
  background: var(--color-success-bg);
}

.quiz-option.is-incorrect label {
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
}

.quiz-option-marker {
  display: inline-grid;
  width: 29px;
  height: 29px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  background: var(--color-hover);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
}

.quiz-option.is-selected .quiz-option-marker {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
  color: var(--color-text);
}

.quiz-option.is-correct .quiz-option-marker {
  border-color: var(--color-accent);
  background: var(--color-success-bg);
  color: var(--color-accent);
}

.quiz-option.is-incorrect .quiz-option-marker {
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.quiz-option-text,
.quiz-option-feedback {
  display: block;
  overflow-wrap: anywhere;
}

.quiz-option-text {
  padding-top: 2px;
  line-height: 1.55;
}

.quiz-option-feedback {
  padding-top: 10px;
  margin-top: 11px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.6;
}

.quiz-option-feedback strong {
  display: block;
  margin-bottom: 2px;
  color: var(--color-text-soft);
}

.quiz-option.is-correct .quiz-option-feedback strong {
  color: var(--color-accent);
}

.quiz-option.is-incorrect .quiz-option-feedback strong {
  color: var(--color-danger);
}

.quiz-answer-summary {
  padding: 18px 20px;
  margin-top: 22px;
  border: 1px solid var(--color-border-strong);
  border-left-width: 4px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.quiz-answer-summary.is-correct {
  border-color: var(--color-accent);
  border-left-color: var(--color-accent);
  background: var(--color-success-bg);
}

.quiz-answer-summary.is-incorrect {
  border-color: var(--color-danger);
  border-left-color: var(--color-danger);
  background: var(--color-danger-bg);
}

.quiz-answer-summary h3 {
  margin: 0 0 9px;
  color: var(--color-text);
  font-size: 17px;
}

.quiz-answer-summary.is-correct h3 {
  color: var(--color-accent);
}

.quiz-answer-summary.is-incorrect h3 {
  color: var(--color-danger);
}

.quiz-answer-summary p {
  overflow-wrap: anywhere;
  margin: 5px 0 0;
  color: var(--color-text-soft);
  font-size: 13px;
}

.quiz-answer-summary p strong {
  display: inline-block;
  min-width: 62px;
  color: var(--color-text);
}

.quiz-mode-controls {
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
  padding: 20px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.quiz-mode-group, .quiz-batch-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.quiz-mode-group > span { min-width: 76px; font-weight: 700; }
.quiz-mode-group [aria-pressed="true"] {
  border-color: var(--color-primary-strong);
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.quiz-batch-controls p, .quiz-list-result p { margin: 0; color: var(--color-text-soft); }
.quiz-question-list { display: grid; gap: 28px; }
.quiz-list-result { display: grid; justify-items: center; gap: 12px; margin-top: 28px; }
.quiz-card .quiz-actions--individual { grid-template-columns: 1fr; }
.quiz-card .quiz-actions--batch { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.quiz-actions:empty { display: none; }

.quiz-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 24px;
}

.quiz-actions .button {
  width: 100%;
}

.button:disabled,
.button[aria-disabled="true"] {
  cursor: not-allowed;
  border-color: var(--color-border);
  background: var(--color-secondary);
  color: var(--color-text-muted);
  opacity: 1;
  box-shadow: none;
}

.button:disabled:hover,
.button[aria-disabled="true"]:hover {
  border-color: var(--color-border-strong);
  background: var(--color-hover);
  color: var(--color-text-soft);
}

.button--primary:disabled:hover {
  border-color: var(--color-border);
  background: var(--color-secondary);
  color: var(--color-text-muted);
}

.quiz-next-help {
  margin: 10px 0 0;
  color: var(--color-warning);
  font-size: 11px;
  text-align: right;
}

.quiz-next-help.is-ready {
  color: var(--color-text-muted);
}

.review-result-container {
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  align-content: center;
}

.review-result-header {
  margin-bottom: 24px;
  text-align: center;
}

.review-result-header .eyebrow {
  justify-content: center;
  margin: 0;
}

.review-result-header > p:last-child {
  margin: 0;
  color: var(--color-text-muted);
}

.quiz-result-card {
  text-align: center;
}

.quiz-score > strong {
  color: var(--color-text);
  font-size: clamp(3rem, 9vw, 4.4rem);
  letter-spacing: -0.06em;
  line-height: 1;
}

.quiz-score > strong span {
  color: var(--color-text-muted);
  font-size: 0.43em;
  letter-spacing: -0.02em;
}

.quiz-score p {
  margin: 10px 0 0;
  color: var(--color-primary-strong);
  font-size: 14px;
  font-weight: 800;
}

.quiz-result-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 28px 0 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.quiz-result-stats > div {
  min-width: 0;
  padding: 16px 10px;
}

.quiz-result-stats > div + div {
  border-left: 1px solid var(--color-border);
}

.quiz-result-stats dt {
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 700;
}

.quiz-result-stats dd {
  overflow-wrap: anywhere;
  margin: 3px 0 0;
  color: var(--color-text);
  font-size: 18px;
  font-weight: 800;
}

.quiz-persistence-status {
  padding: 11px 14px;
  margin: 18px 0 0;
  border-radius: var(--radius-sm);
  background: var(--color-success-bg);
  color: var(--color-success-text);
  font-size: 12px;
}

.quiz-persistence-status.is-warning {
  border: 1px solid var(--color-warning);
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
}

.quiz-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 24px;
}

.quiz-result-actions .button {
  display: inline-grid;
  min-width: 150px;
  place-items: center;
  text-decoration: none;
}

.quiz-state-message {
  display: grid;
  justify-items: center;
}

.quest-state-message {
  display: grid;
  justify-items: center;
}

.quest-container {
  width: min(calc(100% - 48px), 1240px);
  min-width: 0;
  padding: 46px 0 52px;
  margin: 0 auto;
}

.quest-header {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.quest-title-row {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  margin-top: 11px;
}

.quest-title-row > div {
  min-width: 0;
}

.quest-title-row p {
  margin: 0 0 6px;
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 700;
}

.quest-title-row h1 {
  overflow-wrap: anywhere;
  margin: 0;
  color: var(--color-text);
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.045em;
  line-height: 1.2;
  scroll-margin-top: 84px;
}

.quest-completion-badge {
  flex: 0 0 auto;
  padding: 6px 10px;
  margin-top: 23px;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  color: var(--color-text-muted);
  font-size: 10px;
  font-weight: 800;
}

.quest-completion-badge.is-complete {
  border-color: var(--color-accent);
  background: var(--color-success-bg);
  color: var(--color-accent);
}

.quest-summary {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--color-text-soft);
  font-size: 16px;
}

.quest-workspace {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  align-items: start;
  margin-top: 28px;
}

.quest-brief-panel,
.quest-run-panel {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, var(--color-brand-tint), transparent 46%),
    var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.quest-brief-panel {
  overflow: hidden;
}

.quest-run-panel {
  padding: clamp(20px, 3vw, 28px);
}

.quest-run-panel > header {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-border);
}

.quest-run-panel > header h2 {
  margin: 2px 0 0;
  color: var(--color-text);
  font-size: 20px;
}

.quest-run-panel > header > span {
  padding: 5px 9px;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-size: 10px;
  font-weight: 800;
}

.quest-section {
  min-width: 0;
  padding: clamp(20px, 3vw, 28px);
}

.quest-section + .quest-section {
  border-top: 1px solid var(--color-border);
}

.quest-section-label,
.quest-result-kicker {
  margin: 0;
  color: var(--color-primary-strong);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.quest-section h2 {
  overflow-wrap: anywhere;
  margin: 5px 0 12px;
  color: var(--color-text);
  font-size: 20px;
  line-height: 1.35;
}

.quest-section h2 code,
.quest-contract-list code,
.quest-complexity code {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.quest-prose code {
  padding: 0.08em 0.32em;
  border: 1px solid var(--color-inline-code-border);
  border-radius: 5px;
  background: var(--color-inline-code-bg);
  color: var(--color-inline-code);
  font-family: var(--font-mono);
  font-size: 0.9em;
  overflow-wrap: anywhere;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.quest-section > p:not(.quest-section-label),
.quest-contract-list dd,
.quest-constraints,
.quest-examples p,
.quest-hint > p:last-child {
  overflow-wrap: anywhere;
  color: var(--color-text-soft);
  font-size: 13px;
  line-height: 1.7;
}

.quest-section > h3 {
  margin: 22px 0 9px;
  color: var(--color-text);
  font-size: 14px;
}

.quest-contract-list {
  display: grid;
  gap: 10px;
  margin: 0;
}

.quest-contract-list > div {
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.quest-contract-list dt {
  color: var(--color-text);
  font-size: 12px;
  font-weight: 800;
}

.quest-contract-list dt span {
  display: inline-block;
  padding: 2px 6px;
  margin-left: 5px;
  border-radius: 5px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 9px;
}

.quest-contract-list dd {
  margin: 4px 0 0;
}

.quest-constraints {
  display: grid;
  gap: 6px;
  padding-left: 20px;
  margin: 0;
}

.quest-constraints li::marker {
  color: var(--color-primary-strong);
}

.quest-complexity {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 18px 0 0;
}

.quest-complexity > div {
  min-width: 0;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--color-brand-tint);
}

.quest-complexity dt {
  color: var(--color-text-muted);
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
}

.quest-complexity dd {
  overflow-wrap: anywhere;
  margin: 3px 0 0;
}

.quest-examples {
  display: grid;
  gap: 12px;
}

.quest-examples > article {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.quest-examples h3 {
  margin: 0 0 10px;
  color: var(--color-text);
  font-size: 12px;
}

.quest-examples dl,
.quest-result-values {
  min-width: 0;
  margin: 0;
}

.quest-examples p {
  margin: 11px 0 0;
}

.quest-example-table-container {
  width: 100%;
  min-width: 0;
}

.quest-example-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
}

.quest-example-number-column {
  width: 42px;
}

.quest-example-table th,
.quest-example-table td {
  min-width: 0;
  padding: 9px 8px;
  border: 1px solid var(--color-border);
  overflow-wrap: anywhere;
  text-align: left;
  vertical-align: top;
}

.quest-example-table thead th {
  background: var(--color-brand-tint);
  color: var(--color-text);
  font-size: 10px;
}

.quest-example-table tbody th {
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: 10px;
  text-align: center;
}

.quest-example-table code,
.quest-public-value dd code {
  display: block;
  min-width: 0;
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.55;
  overflow-wrap: anywhere;
  white-space: normal;
  word-break: break-word;
}

.quest-example-table th code {
  color: var(--color-text);
  font-weight: 800;
}

.quest-example-table .code-line,
.quest-public-value .code-line {
  min-height: 0;
  padding: 0;
  margin: 0;
  overflow-wrap: inherit;
  white-space: inherit;
}

.quest-example-explanations {
  display: grid;
  gap: 8px;
  padding-left: 24px;
  margin: 0;
  color: var(--color-text-soft);
  font-size: 12px;
  line-height: 1.65;
}

.quest-example-explanations strong {
  display: block;
  margin-bottom: 2px;
  color: var(--color-text);
  font-size: 10px;
}

.quest-public-tests {
  margin-top: 16px;
}

.quest-public-tests > summary {
  padding: 11px 13px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}

.quest-public-tests[open] > summary {
  margin-bottom: 12px;
}

.quest-public-test-list {
  display: grid;
  gap: 12px;
}

.quest-public-test-list > article {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.quest-public-test-list h3 {
  margin: 0 0 10px;
  color: var(--color-text);
  font-size: 12px;
}

.quest-public-values {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
}

.quest-public-value {
  min-width: 0;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.quest-public-value dt {
  color: var(--color-text-muted);
  font-size: 9px;
  font-weight: 800;
}

.quest-public-value dt code,
.quest-public-value dt small {
  display: block;
}

.quest-public-value dt code {
  overflow-wrap: anywhere;
  color: var(--color-text);
  font-family: var(--font-mono);
}

.quest-public-value dt small {
  margin-top: 2px;
  color: var(--color-text-muted);
  font-weight: 600;
  line-height: 1.5;
}

.quest-public-value dd {
  min-width: 0;
  margin: 5px 0 0;
}

.quest-source-examples pre,
.quest-fixture pre {
  --syntax-gutter: 12px;
  max-width: 100%;
  overflow: auto;
  padding: 12px;
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-code);
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  white-space: pre;
}

.quest-fixture {
  margin-top: 20px;
}

.quest-fixture h3 {
  margin: 0 0 6px;
  color: var(--color-text);
  font-size: 14px;
}

.quest-fixture p {
  margin: 0 0 10px;
  color: var(--color-text-soft);
  font-size: 12px;
  line-height: 1.6;
}

.quest-hints > .button {
  width: 100%;
  margin-top: 14px;
}

.quest-hint-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.quest-hint {
  padding: 14px;
  border: 1px solid var(--color-warning);
  border-radius: var(--radius-md);
  background: var(--color-warning-bg);
}

.quest-hint > p:first-child {
  margin: 0;
  color: var(--color-warning);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.quest-hint h3 {
  margin: 4px 0 5px;
  color: var(--color-text);
  font-size: 14px;
}

.quest-hint > p:last-child,
.quest-hint-empty {
  margin: 0;
}

.quest-hint-empty {
  padding: 12px;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 12px;
  text-align: center;
}

.quest-editor-label {
  display: block;
  margin: 18px 0 8px;
  color: var(--color-text-soft);
  font-size: 12px;
  font-weight: 800;
}

.quest-editor-shell {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.quest-source-highlight,
.coding-test-source-highlight {
  --syntax-gutter: 16px;

  position: absolute;
  z-index: 0;
  inset: 0;
  max-width: 100%;
  overflow: hidden;
  padding: 16px;
  margin: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: var(--color-code);
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  pointer-events: none;
  tab-size: 2;
  white-space: pre;
}

.quest-source-highlight code,
.coding-test-source-highlight code {
  display: block;
  width: max-content;
  min-width: 100%;
  color: inherit;
  font: inherit;
  line-height: inherit;
}

.quest-editor-shell.is-readonly .quest-source-highlight,
.coding-test-editor-shell.is-readonly .coding-test-source-highlight {
  opacity: 1;
}

#quest-source {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  max-width: 100%;
  min-height: 420px;
  resize: vertical;
  overflow: auto;
  padding: 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: transparent;
  color: transparent;
  caret-color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  tab-size: 2;
  -webkit-text-fill-color: transparent;
  white-space: pre;
}

#quest-source:hover {
  border-color: var(--color-border-strong);
}

#quest-source:focus {
  border-color: var(--color-primary-strong);
}

#quest-source[readonly] {
  cursor: wait;
  opacity: 1;
}

.code-editor-assist {
  margin: 8px 0 14px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.code-editor-assist-actions,
.code-editor-assist-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.code-editor-assist button {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-code);
  color: var(--color-text-soft);
  padding: 5px 9px;
  font: inherit;
  cursor: pointer;
}

.code-editor-assist button:hover,
.code-editor-assist button[aria-selected="true"] {
  border-color: var(--color-primary-strong);
  color: var(--color-primary-strong);
}

.code-editor-assist button:focus-visible {
  outline: 2px solid var(--color-primary-strong);
  outline-offset: 2px;
}

.code-editor-assist-list {
  margin-top: 8px;
}

.code-editor-assist-list[hidden] {
  display: none;
}

.code-editor-assist-status {
  margin: 4px 0 0;
}

.code-editor-assist-status:empty {
  display: none;
}

.quest-editor-help,
.quest-draft-status {
  overflow-wrap: anywhere;
  margin: 8px 0 0;
  color: var(--color-text-muted);
  font-size: 10px;
  line-height: 1.5;
}

.quest-draft-status {
  color: var(--color-success-text);
}

.quest-draft-status.is-warning {
  color: var(--color-warning-text);
}

.quest-run-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.quest-run-actions .button {
  flex: 1 1 170px;
}

.button--danger {
  border: 1px solid var(--color-danger);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

.button--danger:hover {
  border-color: var(--color-danger);
  background: var(--color-danger-hover);
  color: var(--color-text);
}

.quest-inline-error {
  padding: 11px 13px;
  margin-top: 14px;
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-sm);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
  font-size: 12px;
}

.quest-inline-error:empty {
  display: none;
}

.quest-results-empty,
.quest-results {
  min-width: 0;
  padding-top: 22px;
  margin-top: 24px;
  border-top: 1px solid var(--color-border);
}

.quest-results-empty h3,
.quest-results > header h3 {
  overflow-wrap: anywhere;
  margin: 4px 0 0;
  color: var(--color-text);
  font-size: 18px;
  line-height: 1.4;
}

.quest-results-empty p {
  margin: 7px 0 0;
  color: var(--color-text-muted);
  font-size: 12px;
}

.quest-results > header {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: flex-start;
  justify-content: space-between;
}

.quest-results > header > div {
  min-width: 0;
}

.quest-results > header > strong {
  flex: 0 0 auto;
  padding: 6px 9px;
  border-radius: 999px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-size: 11px;
}

.quest-results.is-success > header h3 {
  color: var(--color-accent);
}

.quest-results.is-danger > header h3 {
  color: var(--color-danger);
}

.quest-results.is-warning > header h3 {
  color: var(--color-warning);
}

.quest-report-error,
.quest-test-error,
.quest-failure-explanation,
.quest-persistence {
  overflow-wrap: anywhere;
  padding: 10px 12px;
  margin: 12px 0 0;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  font-size: 11px;
}

.quest-report-error,
.quest-test-error {
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

.quest-failure-explanation {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
}

.quest-report-error strong,
.quest-test-error strong,
.quest-failure-explanation strong {
  display: block;
  margin-bottom: 2px;
  color: var(--color-text);
}

.quest-test-results {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.quest-test-result {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-left-width: 3px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.quest-test-result.is-success {
  border-left-color: var(--color-accent);
}

.quest-test-result.is-danger {
  border-left-color: var(--color-danger);
}

.quest-test-result.is-warning {
  border-left-color: var(--color-warning);
}

.quest-test-result.is-muted {
  border-left-color: var(--color-text-muted);
}

.quest-test-result > header {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  justify-content: space-between;
}

.quest-test-result > header > div {
  min-width: 0;
}

.quest-test-result > header h4 {
  overflow-wrap: anywhere;
  margin: 4px 0 0;
  color: var(--color-text);
  font-size: 13px;
}

.quest-test-result > header > span {
  flex: 0 0 auto;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
}

.quest-outcome-badge {
  color: var(--color-text-muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.quest-test-result.is-success .quest-outcome-badge {
  color: var(--color-accent);
}

.quest-test-result.is-danger .quest-outcome-badge {
  color: var(--color-danger);
}

.quest-test-result.is-warning .quest-outcome-badge {
  color: var(--color-warning);
}

.quest-result-values {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.quest-result-value {
  min-width: 0;
}

.quest-result-value dt {
  margin-bottom: 4px;
  color: var(--color-text-muted);
  font-size: 9px;
  font-weight: 800;
}

.quest-result-value dd {
  min-width: 0;
  margin: 0;
}

.quest-result-value pre {
  --syntax-gutter: 10px;
  max-width: 100%;
  max-height: 220px;
  overflow: auto;
  padding: 10px;
  margin: 0;
  border-radius: 8px;
  background: var(--color-code);
}

.quest-result-value code {
  display: block;
  width: max-content;
  min-width: 100%;
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.5;
}

.quest-console {
  margin-top: 12px;
  color: var(--color-text-muted);
  font-size: 11px;
}

.quest-console summary {
  cursor: pointer;
  color: var(--color-text-soft);
  font-weight: 700;
}

.quest-console ol {
  display: grid;
  gap: 6px;
  padding-left: 22px;
}

.quest-console li {
  min-width: 0;
}

.quest-console strong,
.quest-console code {
  overflow-wrap: anywhere;
  font-family: var(--font-mono);
  font-size: 10px;
}

.quest-console strong {
  margin-right: 8px;
  color: var(--color-primary-strong);
}

.quest-persistence {
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

.quest-persistence.is-warning {
  border: 1px solid var(--color-warning);
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
}

.quest-pagination {
  margin-top: 28px;
}

.coding-test-state-message {
  display: grid;
  justify-items: center;
}

.coding-test-list-container,
.coding-test-container {
  width: min(calc(100% - 48px), 1320px);
  min-width: 0;
  padding: 46px 0 52px;
  margin: 0 auto;
}

.coding-test-list-header,
.coding-test-header {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.coding-test-list-header h1,
.coding-test-title-row h1 {
  overflow-wrap: anywhere;
  margin: 10px 0 8px;
  color: var(--color-text);
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.045em;
  line-height: 1.2;
  scroll-margin-top: 84px;
}

.coding-test-list-header > p:last-child,
.coding-test-summary {
  max-width: 780px;
  margin: 0;
  color: var(--color-text-soft);
  font-size: 15px;
}

.coding-test-route-notice {
  padding: 11px 13px;
  margin: 14px 0 0;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-brand-tint);
  color: var(--color-text-soft);
  font-size: 12px;
}

.coding-test-filters {
  padding: 22px;
  margin-top: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.coding-test-filters label,
.coding-test-search-label {
  display: grid;
  gap: 6px;
  min-width: 0;
  color: var(--color-text-soft);
  font-size: 11px;
  font-weight: 800;
}

.coding-test-filters input,
.coding-test-filters select {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 9px 11px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-code);
  color: var(--color-text);
}

.coding-test-filters input::placeholder {
  color: var(--color-text-muted);
}

.coding-test-filter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.coding-test-filter-reset {
  margin-top: 14px;
}

.coding-test-list-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  justify-content: space-between;
  margin: 22px 2px 12px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.coding-test-list-summary p {
  margin: 0;
}

.coding-test-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.coding-test-card {
  min-width: 0;
  padding: 20px 22px;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, var(--color-brand-tint), transparent 48%),
    var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.coding-test-card.is-solved {
  border-left-color: var(--color-accent);
}

.coding-test-card-meta,
.coding-test-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.coding-test-card-meta span,
.coding-test-tags li {
  padding: 3px 8px;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-size: 9px;
  font-weight: 800;
}

.coding-test-card-heading {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  margin-top: 12px;
}

.coding-test-card-heading > div {
  min-width: 0;
}

.coding-test-card-heading h2 {
  overflow-wrap: anywhere;
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
}

.coding-test-card-heading h2 a {
  color: var(--color-text);
  text-decoration: none;
}

.coding-test-card-heading h2 a:hover {
  color: var(--color-primary-strong);
  text-decoration: underline;
}

.coding-test-card-heading p {
  overflow-wrap: anywhere;
  margin: 6px 0 0;
  color: var(--color-text-muted);
  font-size: 12px;
}

.coding-test-status,
.coding-test-solved-badge {
  flex: 0 0 auto;
  padding: 5px 9px;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  color: var(--color-text-muted);
  font-size: 10px;
  font-weight: 800;
}

.coding-test-status.is-solved,
.coding-test-solved-badge.is-solved {
  border-color: var(--color-accent);
  background: var(--color-success-bg);
  color: var(--color-accent);
}

.coding-test-tags {
  margin-top: 12px;
}

.coding-test-tags li {
  border-color: var(--color-border);
  background: var(--color-hover);
  color: var(--color-text-soft);
}

.coding-test-empty {
  padding: 36px 24px;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  text-align: center;
}

.coding-test-empty h2 {
  margin: 0;
  color: var(--color-text);
  font-size: 19px;
}

.coding-test-empty p {
  margin: 7px 0 0;
  color: var(--color-text-muted);
  font-size: 13px;
}

.coding-test-back-link {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--color-text-soft);
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
}

.coding-test-back-link:hover {
  color: var(--color-text);
}

.coding-test-title-row {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  margin-top: 10px;
}

.coding-test-title-row > div {
  min-width: 0;
}

.coding-test-title-side {
  display: flex;
  align-items: center;
  gap: 10px;
}

.coding-test-related-quest {
  margin: 5px 0 0;
}

.coding-test-related-quest .coding-test-back-link {
  margin: 0;
}

.coding-test-title-row p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 700;
}

.coding-test-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  margin-top: 24px;
}

.coding-test-problem-scroll {
  min-height: 0;
}

.coding-test-splitter {
  display: none;
}

.coding-test-public-tests {
  margin-top: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.coding-test-public-tests > summary {
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 800;
}

.coding-test-public-tests-content {
  min-width: 0;
  padding: 0 20px 20px;
}

.coding-test-public-tests-content > pre {
  max-height: 560px;
  overflow: auto;
}

.coding-test-public-tests-content > .quest-section {
  padding: 0;
}

.coding-test-problem-panel,
.coding-test-editor-panel,
.coding-test-results-panel {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, var(--color-brand-tint), transparent 46%),
    var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.coding-test-problem-panel {
  overflow: hidden;
}

.coding-test-run-column {
  display: grid;
  min-width: 0;
  gap: 20px;
}

.coding-test-section,
.coding-test-editor-panel,
.coding-test-results-panel {
  min-width: 0;
  padding: clamp(20px, 2.5vw, 28px);
}

.coding-test-section + .coding-test-section {
  border-top: 1px solid var(--color-border);
}

.coding-test-problem-panel > .coding-test-section + .quest-section {
  border-top: 1px solid var(--color-border);
}

.coding-test-section-label,
.coding-test-result-mode {
  margin: 0;
  color: var(--color-primary-strong);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.coding-test-section h2,
.coding-test-editor-panel h2,
.coding-test-results-panel h2 {
  overflow-wrap: anywhere;
  margin: 5px 0 12px;
  color: var(--color-text);
  font-size: 20px;
  line-height: 1.35;
}

.coding-test-section h3 {
  margin: 22px 0 9px;
  color: var(--color-text);
  font-size: 14px;
}

.coding-test-description,
.coding-test-contract-list dd,
.coding-test-constraints,
.coding-test-examples p {
  overflow-wrap: anywhere;
  color: var(--color-text-soft);
  font-size: 13px;
  line-height: 1.7;
}

.coding-test-contract-list {
  display: grid;
  gap: 10px;
  margin: 0;
}

.coding-test-contract-list > div {
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.coding-test-contract-list dt {
  color: var(--color-text);
  font-size: 12px;
  font-weight: 800;
}

.coding-test-contract-list dt span {
  display: inline-block;
  padding: 2px 6px;
  margin-left: 5px;
  border-radius: 5px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 9px;
}

.coding-test-contract-list dd {
  margin: 4px 0 0;
}

.coding-test-constraints {
  display: grid;
  gap: 6px;
  padding-left: 20px;
  margin: 0;
}

.coding-test-constraints li::marker {
  color: var(--color-primary-strong);
}

.coding-test-complexity {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 18px 0 0;
}

.coding-test-complexity > div {
  min-width: 0;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--color-brand-tint);
}

.coding-test-complexity dt {
  color: var(--color-text-muted);
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
}

.coding-test-complexity dd {
  overflow-wrap: anywhere;
  margin: 3px 0 0;
}

.coding-test-complexity code,
.coding-test-contract-list code,
.coding-test-section h2 code {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.coding-test-examples {
  display: grid;
  gap: 12px;
}

.coding-test-examples > article {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.coding-test-examples h3,
.coding-test-examples p {
  margin: 0;
}

.coding-test-examples p {
  margin-top: 11px;
}

.coding-test-editor-panel > header,
.coding-test-report > header,
.coding-test-case > header {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: flex-start;
  justify-content: space-between;
}

.coding-test-editor-panel > header > span {
  padding: 5px 9px;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-size: 10px;
  font-weight: 800;
}

.coding-test-editor-label {
  display: block;
  margin: 18px 0 8px;
  color: var(--color-text-soft);
  font-size: 12px;
  font-weight: 800;
}

.coding-test-editor-shell {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.coding-test-line-numbers {
  display: none;
}

#coding-test-source {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  max-width: 100%;
  min-height: 420px;
  resize: vertical;
  overflow: auto;
  padding: 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: transparent;
  color: transparent;
  caret-color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  tab-size: 2;
  -webkit-text-fill-color: transparent;
  white-space: pre;
}

#coding-test-source:hover {
  border-color: var(--color-border-strong);
}

#coding-test-source:focus {
  border-color: var(--color-primary-strong);
}

#coding-test-source[readonly] {
  cursor: wait;
  opacity: 1;
}

.coding-test-editor-help,
.coding-test-draft-status,
.coding-test-results-state {
  overflow-wrap: anywhere;
  color: var(--color-text-muted);
  font-size: 10px;
  line-height: 1.5;
}

.coding-test-editor-help,
.coding-test-draft-status,
.coding-test-results-state {
  margin: 8px 0 0;
}

.coding-test-draft-status {
  color: var(--color-success-text);
}

.coding-test-draft-status.is-warning {
  color: var(--color-warning-text);
}

.coding-test-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.coding-test-actions .button {
  flex: 1 1 150px;
}

.coding-test-inline-error {
  padding: 11px 13px;
  margin-top: 14px;
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-sm);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
  font-size: 12px;
}

.coding-test-inline-error:empty {
  display: none;
}

.coding-test-results-heading {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

.coding-test-report {
  min-width: 0;
  margin-top: 18px;
}

.coding-test-report > header > div,
.coding-test-case > header > div {
  min-width: 0;
}

.coding-test-report > header h3 {
  overflow-wrap: anywhere;
  margin: 4px 0 0;
  color: var(--color-text);
  font-size: 18px;
  line-height: 1.4;
}

.coding-test-report > header > strong {
  flex: 0 0 auto;
  padding: 6px 9px;
  border-radius: 999px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-size: 11px;
}

.coding-test-report.is-success > header h3 {
  color: var(--color-accent);
}

.coding-test-report.is-danger > header h3 {
  color: var(--color-danger);
}

.coding-test-report.is-warning > header h3 {
  color: var(--color-warning);
}

.coding-test-case-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.coding-test-case {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-left-width: 3px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.coding-test-case.is-success {
  border-left-color: var(--color-accent);
}

.coding-test-case.is-danger {
  border-left-color: var(--color-danger);
}

.coding-test-case.is-warning {
  border-left-color: var(--color-warning);
}

.coding-test-case.is-muted {
  border-left-color: var(--color-text-muted);
}

.coding-test-case > header h4 {
  overflow-wrap: anywhere;
  margin: 4px 0 0;
  color: var(--color-text);
  font-size: 13px;
}

.coding-test-case > header > span {
  flex: 0 0 auto;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
}

.coding-test-outcome {
  color: var(--color-text-muted);
  font-size: 9px;
  font-weight: 800;
}

.coding-test-case.is-success .coding-test-outcome {
  color: var(--color-accent);
}

.coding-test-case.is-danger .coding-test-outcome {
  color: var(--color-danger);
}

.coding-test-case.is-warning .coding-test-outcome {
  color: var(--color-warning);
}

.coding-test-result-values {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  min-width: 0;
  margin: 12px 0 0;
}

.coding-test-result-value,
.coding-test-result-value dd {
  min-width: 0;
  margin: 0;
}

.coding-test-result-value dt {
  margin-bottom: 4px;
  color: var(--color-text-muted);
  font-size: 9px;
  font-weight: 800;
}

.coding-test-result-value pre {
  max-width: 100%;
  max-height: 220px;
  overflow: auto;
  padding: 10px;
  margin: 0;
  border-radius: 8px;
  background: var(--color-code);
}

.coding-test-result-value code {
  display: block;
  width: max-content;
  min-width: 100%;
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.5;
}

.coding-test-report-error,
.coding-test-test-error,
.coding-test-failure-explanation,
.coding-test-persistence {
  overflow-wrap: anywhere;
  padding: 10px 12px;
  margin: 12px 0 0;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  font-size: 11px;
}

.coding-test-report-error,
.coding-test-test-error {
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

.coding-test-failure-explanation {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
}

.coding-test-report-error strong,
.coding-test-test-error strong,
.coding-test-failure-explanation strong {
  display: block;
  margin-bottom: 2px;
  color: var(--color-text);
}

.coding-test-persistence {
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

.coding-test-persistence.is-warning {
  border: 1px solid var(--color-warning);
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
}

.coding-test-console {
  margin-top: 12px;
  color: var(--color-text-muted);
  font-size: 11px;
}

.coding-test-console summary {
  cursor: pointer;
  color: var(--color-text-soft);
  font-weight: 700;
}

.coding-test-console ol {
  display: grid;
  gap: 6px;
  padding-left: 22px;
}

.coding-test-console strong,
.coding-test-console code {
  overflow-wrap: anywhere;
  font-family: var(--font-mono);
  font-size: 10px;
}

.coding-test-console strong {
  margin-right: 8px;
  color: var(--color-primary-strong);
}

.web-project-nav {
  padding: 18px 10px 24px;
  border-top: 1px solid var(--color-border);
}

.web-project-nav .nav-label {
  font-size: 12px;
}

.web-project-link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 9px;
  align-items: center;
  padding: 9px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  text-decoration: none;
  transition: border-color 150ms ease, background 150ms ease, color 150ms ease;
}

.web-project-link:hover {
  background: var(--color-hover);
  color: var(--color-text);
}

.web-project-link.is-current {
  border-color: var(--color-border-strong);
  background: linear-gradient(120deg, var(--color-brand-tint), var(--color-brand-tint));
  color: var(--color-text);
}

.web-project-link-icon {
  display: inline-grid;
  width: 32px;
  height: 28px;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.web-project-link > span:last-child {
  min-width: 0;
}

.web-project-link strong,
.web-project-link small {
  display: block;
  overflow: hidden;
  font-size: 12px;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.web-project-link small {
  margin-top: 2px;
  color: var(--color-text-muted);
}

.web-project-list-page,
.web-project-page {
  width: calc(100% - var(--sidebar-width));
  min-width: 0;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 46px 24px 52px;
  margin-left: var(--sidebar-width);
}

.web-project-list-header,
.web-project-list,
.web-project-header,
.web-project-workspace {
  width: min(100%, 1320px);
  min-width: 0;
  margin-right: auto;
  margin-left: auto;
}

.web-project-list-header,
.web-project-header {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.web-project-list-header > .eyebrow,
.web-project-header > .eyebrow {
  margin: 0;
}

.web-project-list-header h1,
.web-project-header h1 {
  overflow-wrap: anywhere;
  margin: 10px 0 8px;
  color: var(--color-text);
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.045em;
  line-height: 1.2;
  scroll-margin-top: 84px;
}

.web-project-list-header > p:last-child,
.web-project-header > p:last-child {
  max-width: 800px;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--color-text-soft);
  font-size: 15px;
  line-height: 1.7;
}

.web-project-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.web-project-card {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, var(--color-brand-tint), transparent 48%),
    var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.web-project-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.web-project-card-meta span,
.web-project-status {
  padding: 4px 8px;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.35;
}

.web-project-card h2 {
  overflow-wrap: anywhere;
  margin: 14px 0 7px;
  font-size: 20px;
  line-height: 1.4;
}

.web-project-card h2 a {
  color: var(--color-text);
  text-decoration: none;
}

.web-project-card h2 a:hover {
  color: var(--color-primary-strong);
  text-decoration: underline;
}

.web-project-card > p {
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--color-text-soft);
  font-size: 13px;
  line-height: 1.7;
}

.web-project-card-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  margin-top: 18px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 12px;
}

.web-project-status {
  border-color: var(--color-accent);
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

.web-project-list .empty-message {
  grid-column: 1 / -1;
  padding: 32px 20px;
  margin: 0;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
}

.web-project-workspace {
  display: grid;
  grid-template-columns: minmax(210px, 0.68fr) minmax(0, 1.32fr);
  gap: 20px;
  align-items: start;
  margin-top: 24px;
}

.web-project-brief,
.web-project-editor-panel,
.web-project-preview-panel,
.web-project-manual,
.web-project-actions,
.web-project-results {
  min-width: 0;
  padding: clamp(20px, 2.5vw, 28px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, var(--color-brand-tint), transparent 46%),
    var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.web-project-brief {
  position: sticky;
  top: 24px;
  grid-column: 1;
  grid-row: 1 / span 5;
}

.web-project-editor-panel,
.web-project-preview-panel,
.web-project-manual,
.web-project-actions,
.web-project-results {
  grid-column: 2;
}

.web-project-brief h2,
.web-project-editor-panel h2,
.web-project-preview-panel h2,
.web-project-manual h2,
.web-project-results h2 {
  overflow-wrap: anywhere;
  margin: 0;
  color: var(--color-text);
  font-size: 20px;
  line-height: 1.4;
}

.web-project-brief > p,
.web-project-brief li,
.web-project-manual > p,
.web-project-preview-panel > p {
  overflow-wrap: anywhere;
  color: var(--color-text-soft);
  font-size: 13px;
  line-height: 1.7;
}

.web-project-brief > p {
  margin: 11px 0 0;
}

.web-project-brief ol {
  display: grid;
  gap: 9px;
  padding-left: 22px;
  margin: 18px 0 0;
}

.web-project-brief li::marker {
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-weight: 800;
}

.web-project-brief .web-project-scoring-note {
  padding: 11px 13px;
  margin-top: 20px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-brand-tint);
  color: var(--color-text-soft);
  font-size: 12px;
  font-weight: 800;
}

.web-project-editor-heading,
.web-project-preview-heading,
.web-project-results-heading {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.web-project-file-tabs,
.web-project-preview-heading > div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}

.web-project-file-tab,
.web-project-preview-heading button {
  min-width: 0;
  min-height: 44px;
  cursor: pointer;
  padding: 9px 12px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-hover);
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.35;
  overflow-wrap: anywhere;
  transition: border-color 150ms ease, background 150ms ease, color 150ms ease;
}

.web-project-file-tab:hover,
.web-project-preview-heading button:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.web-project-file-tab:focus-visible,
.web-project-preview-heading button:focus-visible,
.web-project-source:focus-visible,
.web-project-preview-frame iframe:focus-visible,
.web-project-results:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.web-project-file-tab.is-active,
.web-project-file-tab[aria-pressed="true"],
.web-project-preview-heading button[aria-pressed="true"] {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
}

.web-project-file-tab:disabled,
.web-project-preview-heading button:disabled {
  cursor: not-allowed;
  opacity: 1;
}

.web-project-source {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 420px;
  resize: vertical;
  overflow: auto;
  padding: 16px;
  margin-top: 18px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-code);
  color: var(--color-text-soft);
  caret-color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  tab-size: 2;
  white-space: pre;
  overflow-wrap: normal;
}

.web-project-source:hover {
  border-color: var(--color-border-strong);
}

.web-project-source:focus {
  border-color: var(--color-primary-strong);
}

.web-project-source[readonly] {
  cursor: wait;
  opacity: 1;
}

.web-project-editor-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
}

.web-project-editor-footer p {
  flex: 1 1 260px;
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--color-success-text);
  font-size: 12px;
  line-height: 1.55;
}

.web-project-editor-footer p.is-warning {
  color: var(--color-warning-text);
}

.button--ghost {
  border-color: transparent;
  background: transparent;
  color: var(--color-text-muted);
}

.button--ghost:hover {
  border-color: var(--color-border-strong);
  background: var(--color-hover);
  color: var(--color-text);
}

.web-project-preview-frame {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: auto;
  padding: 12px;
  margin-top: 18px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background:
    linear-gradient(45deg, var(--color-hover) 25%, transparent 25%),
    linear-gradient(-45deg, var(--color-hover) 25%, transparent 25%),
    var(--color-code);
  background-position: 0 0, 8px 8px;
  background-size: 16px 16px;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.web-project-preview-frame iframe {
  display: block;
  height: 420px;
  max-width: none;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-sm);
  background: #fff;
  color-scheme: light;
}

.web-project-preview-frame.is-narrow iframe {
  width: 22.5rem;
  margin: 0 auto;
}

.web-project-preview-frame.is-wide iframe {
  width: max(100%, 48rem);
}

.web-project-preview-panel > p {
  margin: 10px 0 0;
  color: var(--color-text-muted);
  font-size: 12px;
}

.web-project-manual > p {
  margin: 8px 0 18px;
}

.web-project-manual-criterion {
  min-width: 0;
  padding: 16px;
  margin: 14px 0 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.web-project-manual-criterion legend {
  max-width: 100%;
  padding: 0 7px;
  overflow-wrap: anywhere;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.45;
}

.web-project-manual-criterion legend span {
  color: var(--color-primary-strong);
  font-size: 12px;
  white-space: nowrap;
}

.web-project-manual-criterion > p {
  margin: 2px 0 13px;
  overflow-wrap: anywhere;
  color: var(--color-text-soft);
  font-size: 12px;
  line-height: 1.65;
}

.web-project-manual-option {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  min-width: 0;
  padding: 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-soft);
}

.web-project-manual-option + .web-project-manual-option {
  margin-top: 6px;
}

.web-project-manual-option:hover {
  border-color: var(--color-border);
  background: var(--color-hover);
}

.web-project-manual-option:has(input:checked) {
  border-color: var(--color-border-strong);
  background: var(--color-brand-tint);
}

.web-project-manual-option input {
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  accent-color: var(--color-primary-strong);
}

.web-project-manual-option > span {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 3px 12px;
  min-width: 0;
}

.web-project-manual-option strong,
.web-project-manual-option small {
  grid-column: 1;
  overflow-wrap: anywhere;
  font-size: 12px;
  line-height: 1.55;
}

.web-project-manual-option strong {
  color: var(--color-text);
}

.web-project-manual-option small {
  color: var(--color-text-muted);
}

.web-project-manual-option b {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  color: var(--color-primary-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
}

.web-project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.web-project-actions .button {
  flex: 1 1 180px;
}

.web-project-actions p {
  flex: 1 0 100%;
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 12px;
  line-height: 1.6;
}

.web-project-actions [data-web-project-error] {
  padding: 11px 13px;
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-sm);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

.web-project-actions [data-web-project-error]:empty {
  display: none;
}

.web-project-persistence {
  padding: 11px 13px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

.web-project-results-heading > div {
  min-width: 0;
}

.web-project-results-heading .eyebrow {
  margin: 0;
}

.web-project-results-heading h2 {
  margin-top: 4px;
}

.web-project-results-heading > strong {
  flex: 0 0 auto;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--color-brand-tint);
  color: var(--color-primary-strong);
  font-size: 12px;
}

.web-project-results > ul {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.web-project-result-item {
  min-width: 0;
  padding: 13px 14px;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-text-muted);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.web-project-result-item.is-passed {
  border-left-color: var(--color-accent);
}

.web-project-result-item.is-failed,
.web-project-result-item.is-invalid_source,
.web-project-result-item.is-engine_error {
  border-left-color: var(--color-danger);
}

.web-project-result-item.is-cancelled,
.web-project-result-item.is-not_run {
  border-left-color: var(--color-warning);
}

.web-project-result-item > div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
  justify-content: space-between;
}

.web-project-result-item strong,
.web-project-result-item span,
.web-project-result-item p {
  overflow-wrap: anywhere;
  font-size: 12px;
  line-height: 1.55;
}

.web-project-result-item strong {
  color: var(--color-text);
}

.web-project-result-item span {
  color: var(--color-primary-strong);
  font-weight: 800;
}

.web-project-result-item p {
  margin: 7px 0 0;
  color: var(--color-text-soft);
}

#lesson-content :not(pre) > code {
  color: var(--color-inline-code);
}

.quiz-answer-summary.is-incorrect h3,
.quest-inline-error:not(:empty),
.quest-results.is-danger > header h3,
.coding-test-inline-error:not(:empty),
.coding-test-report.is-danger > header h3,
.web-project-result-item.is-failed strong,
.web-project-result-item.is-invalid_source strong,
.web-project-result-item.is-engine_error strong {
  text-decoration-color: var(--color-danger);
  text-decoration-line: underline;
  text-decoration-style: wavy;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.22em;
}

.web-project-submit-warning,
.web-project-provisional-note {
  padding: 11px 13px;
  margin: 14px 0 0;
  border-radius: var(--radius-sm);
  overflow-wrap: anywhere;
  font-size: 12px;
  line-height: 1.6;
}

.web-project-submit-warning {
  border: 1px solid var(--color-danger);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

.web-project-provisional-note {
  border: 1px solid var(--color-warning);
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
}

@media (min-width: 1120px) {
  .coding-test-container {
    width: min(calc(100% - 32px), 1600px);
    padding-top: 10px;
  }

  .coding-test-header {
    padding: 0;
    border: 0;
  }

  .coding-test-breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 43px;
    margin-bottom: 8px;
    color: var(--color-text-muted);
    font-size: 11px;
  }

  .coding-test-breadcrumb a {
    color: inherit;
    text-decoration: none;
  }

  .coding-test-breadcrumb a:hover {
    color: var(--color-primary-strong);
  }

  .coding-test-back-link {
    display: grid;
    flex: 0 0 25px;
    place-items: center;
    width: 25px;
    height: 25px;
    margin: 0;
    color: var(--color-text-muted);
    font-size: 18px;
  }

  .coding-test-title-row {
    align-items: center;
    min-height: 48px;
    margin: 0;
    gap: 12px;
  }

  .coding-test-title-main {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
  }

  .coding-test-language-badge,
  .coding-test-level-badge {
    flex: none;
    padding: 3px 8px;
    border-radius: 5px;
    background: var(--color-brand-tint);
    color: var(--color-primary-strong);
    font-size: 10px;
    font-weight: 800;
    white-space: nowrap;
  }

  .coding-test-level-badge {
    background: var(--color-bg);
    color: var(--color-text-muted);
  }

  .coding-test-title-row h1 {
    overflow: hidden;
    margin: 0;
    font-size: 25px;
    line-height: 1.3;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .coding-test-summary {
    max-width: none;
    font-size: 12px;
  }

  .coding-test-title-side {
    flex: 0 1 auto;
    justify-content: flex-end;
    min-width: 0;
    gap: 8px;
  }

  .coding-test-title-side .java-browser-preparation.is-compact {
    flex: 0 1 auto;
    flex-wrap: nowrap;
    gap: 8px;
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
  }

  .coding-test-title-side .java-browser-preparation .eyebrow {
    display: none;
  }

  .coding-test-title-side .java-browser-preparation h2 {
    font-size: 12px;
    white-space: nowrap;
  }

  .coding-test-title-side .java-browser-preparation[data-java-browser-preparation="ready"] h2::before {
    content: "";
    display: inline-block;
    width: 7px;
    height: 7px;
    margin-right: 6px;
    border-radius: 50%;
    background: var(--color-success-text);
  }

  .coding-test-title-side .java-browser-preparation-details {
    max-width: 160px;
    color: var(--color-text-muted);
    font-size: 10px;
  }

  .coding-test-title-side .java-browser-preparation-details summary {
    cursor: pointer;
  }

  .coding-test-title-side .java-browser-preparation-action {
    flex-wrap: wrap;
    gap: 7px;
  }

  .coding-test-title-side .java-browser-preparation-action .button {
    padding: 5px 9px;
    white-space: nowrap;
  }

  .coding-test-title-side .java-browser-preparation-action p {
    max-width: 28ch;
    font-size: 10px;
    line-height: 1.35;
  }

  .coding-test-workspace {
    grid-template-columns: minmax(320px, var(--coding-test-problem-width, 44%)) 12px minmax(380px, 1fr);
    gap: 0;
    min-height: 472px;
    height: var(--coding-test-workspace-height, 660px);
    align-items: stretch;
    margin-top: 8px;
  }

  .coding-test-problem-panel,
  .coding-test-editor-panel,
  .coding-test-results-panel {
    border-radius: 12px;
    background: var(--color-surface);
    box-shadow: none;
  }

  .coding-test-problem-panel {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  .coding-test-problem-scroll {
    flex: 1;
    overflow: auto;
    scrollbar-width: thin;
  }

  .coding-test-panelbar,
  .coding-test-filebar,
  .coding-test-results-heading {
    display: flex;
    flex: 0 0 49px;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 49px;
    padding: 0 17px;
    border-bottom: 1px solid var(--color-border);
  }

  .coding-test-panelbar h2,
  .coding-test-filebar h2,
  .coding-test-results-heading h2 {
    margin: 0;
    font-size: 12px;
    font-weight: 800;
    line-height: 1.3;
  }

  .coding-test-panelbar > span,
  .coding-test-results-heading > span {
    color: var(--color-text-muted);
    font-size: 10px;
  }

  .coding-test-problem-scroll > :is(.coding-test-section, .quest-section) {
    padding: 23px 25px;
  }

  .coding-test-problem-scroll > :is(.coding-test-section, .quest-section) + :is(.coding-test-section, .quest-section) {
    border-top: 0;
    padding-top: 0;
  }

  .coding-test-problem-scroll > .coding-test-section:first-child {
    border-bottom: 1px solid var(--color-border);
  }

  .coding-test-contract-heading {
    margin: 23px 25px 0;
    color: var(--color-text);
    font-size: 14px;
  }

  .coding-test-problem-scroll :is(#coding-test-contract-title, #quest-contract-title) {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .coding-test-problem-scroll :is(.coding-test-section-label, .quest-section-label) {
    display: none;
  }

  .coding-test-problem-scroll :is(.coding-test-section, .quest-section) > h2 {
    margin: 0 0 12px;
    font-size: 14px;
    font-weight: 800;
  }

  .coding-test-problem-scroll :is(.coding-test-description, .quest-prose, .coding-test-summary) {
    margin: 0 0 8px;
    font-size: 13px;
    line-height: 1.9;
  }

  .coding-test-problem-scroll :is(.coding-test-contract-list, .quest-contract-list) {
    gap: 0;
  }

  .coding-test-problem-scroll :is(.coding-test-contract-list, .quest-contract-list) > div {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    align-items: start;
    gap: 12px;
    padding: 11px 0;
    border: 0;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    background: transparent;
  }

  .coding-test-problem-scroll :is(.coding-test-contract-list, .quest-contract-list) dt span {
    display: block;
    padding: 0;
    margin: 4px 0 0;
    background: transparent;
    color: var(--color-text-muted);
  }

  .coding-test-problem-scroll :is(.coding-test-contract-list, .quest-contract-list) dt code {
    display: inline-block;
    padding: 2px 5px;
    border-radius: 4px;
    background: var(--color-brand-tint);
    color: var(--color-primary-strong);
  }

  .coding-test-problem-scroll :is(.coding-test-contract-list, .quest-contract-list) dd {
    margin: 0;
    line-height: 1.7;
  }

  .coding-test-related-quest {
    padding: 0 25px 20px;
  }

  .coding-test-run-column {
    grid-template-rows: minmax(300px, var(--coding-test-editor-height, 64%)) 12px minmax(160px, 1fr);
    gap: 0;
    min-height: 0;
  }

  .coding-test-run-column > .coding-test-editor-panel {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    position: relative;
    padding: 0;
  }

  .coding-test-run-column > .coding-test-editor-panel > .coding-test-filebar {
    padding-right: 280px;
  }

  .coding-test-run-column > .coding-test-editor-panel > header .coding-test-section-label {
    display: none;
  }

  .coding-test-run-column > .coding-test-editor-panel > header h2 {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 12px;
  }

  .coding-test-filebar h2 span {
    margin-right: 8px;
    color: var(--color-primary-strong);
  }

  .coding-test-filebar [data-coding-test-reset] {
    flex: none;
    padding: 4px 7px;
    border: 0;
    background: transparent;
    color: var(--color-text-muted);
    font-size: 10px;
  }

  .coding-test-run-column > .coding-test-editor-panel > header > span {
    padding: 3px 6px;
    font-size: 9px;
  }

  .coding-test-editor-label,
  .coding-test-editor-help {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .coding-test-run-column .code-editor-assist {
    position: absolute;
    z-index: 3;
    top: 8px;
    right: 82px;
    max-width: 190px;
    margin: 0;
    font-size: 10px;
  }

  .coding-test-run-column .code-editor-assist button {
    padding: 3px 5px;
    border-color: transparent;
    background: transparent;
  }

  .coding-test-run-column .code-editor-assist-list {
    position: absolute;
    top: 35px;
    right: 0;
    width: min(320px, 75vw);
    max-height: 240px;
    overflow: auto;
    padding: 6px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-surface);
    box-shadow: var(--shadow-soft);
  }

  .coding-test-run-column .code-editor-assist-status {
    position: absolute;
    top: 37px;
    right: 0;
    min-width: 180px;
    background: var(--color-surface);
  }

  .coding-test-editor-shell {
    flex: 1;
    min-height: 0;
    border-radius: 0;
    background: var(--color-surface);
  }

  .coding-test-editor-shell:focus-within {
    outline: 2px solid var(--color-primary-strong);
    outline-offset: -2px;
  }

  .coding-test-line-numbers {
    position: absolute;
    inset: 0 auto 0 0;
    display: block;
    width: 49px;
    overflow: hidden;
    margin: 0;
    padding: 14px 10px 14px 0;
    border-right: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-muted);
    font: 12px/1.95 var(--font-mono);
    text-align: right;
    white-space: pre;
  }

  #coding-test-source {
    width: calc(100% - 49px);
    height: 100%;
    min-height: 0;
    margin-left: 49px;
    resize: none;
    padding: 14px 16px;
    border: 0;
    border-radius: 0;
    font-size: 12px;
    line-height: 1.95;
  }

  .coding-test-source-highlight {
    inset: 0 0 0 49px;
    padding: 14px 16px;
    border: 0;
    background: var(--color-surface);
    font-size: 12px;
    line-height: 1.95;
  }

  .coding-test-editor-footer {
    display: flex;
    flex: 0 1 auto;
    flex-direction: column;
    min-height: 0;
  }

  .coding-test-editor-status {
    min-height: 0;
    overflow: visible;
  }

  .coding-test-editor-help {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .coding-test-editor-status .coding-test-route-notice,
  .coding-test-editor-status .coding-test-inline-error:not(:empty) {
    margin: 0;
    padding: 7px 14px;
  }

  .coding-test-actions {
    flex: none;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    min-height: 54px;
    margin: 0;
    padding: 8px 13px;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
  }

  .coding-test-actions > span {
    color: var(--color-text-muted);
    font-size: 10px;
  }

  .coding-test-action-buttons {
    display: flex;
    gap: 7px;
  }

  .coding-test-actions .button {
    flex: none;
    min-width: 92px;
    padding: 7px 12px;
    font-size: 11px;
  }

  .coding-test-draft-status {
    margin: 0;
    padding: 2px 14px;
    font-size: 9px;
  }

  .coding-test-results-panel {
    min-height: 0;
    overflow: auto;
    scrollbar-width: thin;
    padding: 0;
  }

  .coding-test-results-heading {
    position: sticky;
    z-index: 1;
    top: 0;
    padding-bottom: 0;
    background: var(--color-surface);
  }

  .coding-test-results-empty,
  .coding-test-results-panel > .coding-test-results-state,
  .coding-test-results-panel > .coding-test-report {
    margin: 0;
    padding: 15px 19px;
  }

  .coding-test-results-empty > strong {
    font-size: 13px;
  }

  .coding-test-results-placeholder {
    display: flex;
    justify-content: space-between;
    margin: 12px 0 0;
    padding-top: 10px;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 11px;
  }

  .coding-test-public-tests {
    margin-top: 72px;
  }

  .coding-test-splitter {
    display: grid;
    place-items: center;
    touch-action: none;
    border-radius: 5px;
  }

  .coding-test-splitter::before {
    content: "";
    width: 3px;
    height: 36px;
    border-radius: 999px;
    background: var(--color-border-strong);
  }

  .coding-test-splitter[data-coding-test-splitter="columns"] {
    cursor: col-resize;
  }

  .coding-test-splitter[data-coding-test-splitter="rows"] {
    cursor: row-resize;
  }

  .coding-test-splitter[data-coding-test-splitter="rows"]::before {
    width: 36px;
    height: 3px;
  }

  .coding-test-splitter:is(:hover, :focus-visible)::before {
    background: var(--color-primary-strong);
  }
}

.initial-loader,
.loading-page,
.empty-page,
.error-page {
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  place-content: center;
  justify-items: center;
  padding: 24px;
  text-align: center;
}

.state-message {
  display: grid;
  justify-items: center;
}

.initial-loader p,
.loading-page p {
  margin: 14px 0 0;
  color: var(--color-text-muted);
  font-size: 13px;
}

.empty-page,
.error-page {
  max-width: 660px;
  margin: 0 auto;
}

.empty-page .eyebrow,
.error-page .eyebrow {
  margin: 18px 0 0;
}

.empty-page h1,
.error-page h1 {
  margin: 8px 0 6px;
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  line-height: 1.25;
}

.empty-page .state-message > p:not(.eyebrow),
.error-page .state-message > p:not(.eyebrow) {
  margin: 0 0 20px;
  color: var(--color-text-muted);
}

.noscript-message {
  position: fixed;
  z-index: 200;
  right: 16px;
  bottom: 16px;
  left: 16px;
  padding: 14px;
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-md);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
  text-align: center;
}

@media (max-width: 820px) {
  body.menu-open {
    overflow: hidden;
  }

  .mobile-header {
    position: sticky;
    z-index: 12;
    top: 0;
    display: flex;
    height: 64px;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    backdrop-filter: blur(16px);
  }

  .mobile-brand {
    font-size: 14px;
    font-weight: 800;
  }

  .sidebar {
    z-index: 30;
    width: min(88vw, 300px);
    border-right-color: var(--color-border-strong);
    box-shadow: 24px 0 64px color-mix(in srgb, var(--color-shadow) 45%, transparent);
    transform: translateX(-105%);
    visibility: hidden;
    transition: transform 180ms ease, visibility 0s linear 180ms;
  }

  .sidebar.is-open {
    transform: translateX(0);
    visibility: visible;
    transition-delay: 0s;
  }

  .sidebar-close {
    display: inline-grid;
  }

  .lesson-link strong {
    font-size: 12px;
  }

  .review-link strong {
    font-size: 12px;
  }

  .quest-link strong {
    font-size: 12px;
  }

  .coding-test-nav-link strong {
    font-size: 12px;
  }

  .sidebar-backdrop {
    display: block;
    pointer-events: none;
    transition: opacity 180ms ease;
  }

  .sidebar-backdrop.is-visible {
    pointer-events: auto;
    opacity: 1;
  }

  .main-area {
    margin-left: 0;
  }

  .lesson-container {
    width: min(calc(100% - 32px), var(--content-width));
    padding-top: 34px;
  }

  .review-container {
    width: min(calc(100% - 32px), var(--content-width));
    padding-top: 34px;
  }

  .quest-container {
    width: min(calc(100% - 32px), var(--content-width));
    padding-top: 34px;
  }

  .coding-test-list-container,
  .coding-test-container {
    width: min(calc(100% - 32px), var(--content-width));
    padding-top: 34px;
  }

  .web-project-list-page,
  .web-project-page {
    width: 100%;
    padding: 34px 16px 52px;
    margin-left: 0;
  }

  .web-project-workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .web-project-brief,
  .web-project-editor-panel,
  .web-project-preview-panel,
  .web-project-manual,
  .web-project-actions,
  .web-project-results {
    position: static;
    grid-column: 1;
    grid-row: auto;
  }

  .coding-test-filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quest-workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .lesson-hero {
    padding-bottom: 28px;
  }

  .lesson-body {
    padding-top: 28px;
  }
}

@media (max-width: 600px) {
  .lesson-hero h1 {
    font-size: 1.9rem;
  }

  .lesson-summary {
    font-size: 15px;
  }

  .essential-question {
    align-items: flex-start;
    padding: 14px;
  }

  .lesson-body {
    font-size: 15px;
  }

  .lesson-body h2 {
    font-size: 21px;
  }

  .code-card {
    margin-right: -8px;
    margin-left: -8px;
    border-radius: 10px;
  }

  .code-card pre {
    --syntax-gutter: 16px;
    padding: 16px;
  }

  .code-card code {
    font-size: 12px;
  }

  .completion-card {
    padding: 18px;
  }

  .completion-card .button {
    width: 100%;
  }

  .lesson-pagination {
    grid-template-columns: 1fr;
  }

  .pagination-spacer {
    display: none;
  }

  .page-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .review-container {
    width: calc(100% - 24px);
    padding-top: 26px;
  }

  .review-header {
    padding-bottom: 22px;
  }

  .review-header h1,
  .review-result-header h1 {
    font-size: 1.9rem;
  }

  .review-progress-copy {
    margin-top: 20px;
  }

  .quiz-card,
  .quiz-result-card {
    padding: 20px;
    border-radius: var(--radius-md);
  }

  .quiz-code {
    margin-right: -6px;
    margin-left: -6px;
    border-radius: 10px;
  }

  .quiz-code pre {
    --syntax-gutter: 16px;
    padding: 16px;
  }

  .quiz-code code {
    font-size: 12px;
  }

  .quiz-option label {
    gap: 11px;
    padding: 13px;
  }

  .quiz-actions {
    grid-template-columns: 1fr;
  }

  .quiz-next-help {
    text-align: left;
  }

  .review-result-container {
    min-height: calc(100vh - 64px);
    min-height: calc(100dvh - 64px);
  }

  .quiz-result-stats dd {
    font-size: 16px;
  }

  .quiz-result-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .quiz-result-actions .button {
    width: 100%;
  }

  .quest-container {
    width: calc(100% - 24px);
    padding-top: 26px;
  }

  .quest-title-row {
    align-items: stretch;
    flex-direction: column;
  }

  .quest-completion-badge {
    align-self: flex-start;
    margin-top: 0;
  }

  .quest-brief-panel,
  .quest-run-panel {
    border-radius: var(--radius-md);
  }

  .quest-run-panel,
  .quest-section {
    padding: 18px;
  }

  #quest-source,
  .quest-source-highlight {
    min-height: 360px;
    padding: 13px;
    font-size: 12px;
  }

  .quest-source-highlight {
    --syntax-gutter: 13px;
  }

  .quest-run-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .quest-run-actions .button {
    width: 100%;
  }

  .quest-result-values {
    grid-template-columns: minmax(0, 1fr);
  }

  .coding-test-list-container,
  .coding-test-container {
    width: calc(100% - 24px);
    padding-top: 26px;
  }

  .coding-test-list-header h1,
  .coding-test-title-row h1 {
    font-size: 1.9rem;
  }

  .coding-test-filters,
  .coding-test-card,
  .coding-test-section,
  .coding-test-editor-panel,
  .coding-test-results-panel {
    padding: 18px;
  }

  .coding-test-filter-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .coding-test-title-row,
  .coding-test-card-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .coding-test-status,
  .coding-test-solved-badge {
    align-self: flex-start;
  }

  #coding-test-source {
    min-height: 340px;
    padding: 13px;
    font-size: 12px;
  }

  .coding-test-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .coding-test-actions .button {
    width: 100%;
  }

  .coding-test-result-values {
    grid-template-columns: minmax(0, 1fr);
  }

  .web-project-list-page,
  .web-project-page {
    padding: 26px 12px 44px;
  }

  .web-project-list-header h1,
  .web-project-header h1 {
    font-size: 1.9rem;
  }

  .web-project-list-header,
  .web-project-header {
    padding-bottom: 22px;
  }

  .web-project-card,
  .web-project-brief,
  .web-project-editor-panel,
  .web-project-preview-panel,
  .web-project-manual,
  .web-project-actions,
  .web-project-results {
    padding: 18px;
    border-radius: var(--radius-md);
  }

  .web-project-editor-heading,
  .web-project-preview-heading,
  .web-project-results-heading,
  .web-project-editor-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .web-project-file-tabs,
  .web-project-preview-heading > div {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .web-project-source {
    min-height: 340px;
    padding: 13px;
    font-size: 12px;
  }

  .web-project-editor-footer .button {
    width: 100%;
  }

  .web-project-preview-frame iframe {
    height: 340px;
  }

  .web-project-manual-option {
    padding: 11px;
  }

  .web-project-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .web-project-actions .button {
    width: 100%;
  }
}

@media (max-width: 360px) {
  .quiz-card,
  .quiz-result-card {
    padding: 16px;
  }

  .quiz-option label {
    padding: 12px;
  }

  .quiz-result-stats > div {
    padding: 14px 6px;
  }

  .quiz-result-stats dd {
    font-size: 14px;
  }

  .quest-container {
    width: calc(100% - 16px);
  }

  .quest-run-panel,
  .quest-section {
    padding: 15px;
  }

  .quest-complexity {
    grid-template-columns: minmax(0, 1fr);
  }

  .coding-test-list-container,
  .coding-test-container {
    width: calc(100% - 16px);
  }

  .coding-test-filters,
  .coding-test-card,
  .coding-test-section,
  .coding-test-editor-panel,
  .coding-test-results-panel {
    padding: 15px;
  }

  .coding-test-complexity {
    grid-template-columns: minmax(0, 1fr);
  }

  .web-project-list-page,
  .web-project-page {
    padding-right: 8px;
    padding-left: 8px;
  }

  .web-project-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .web-project-card,
  .web-project-brief,
  .web-project-editor-panel,
  .web-project-preview-panel,
  .web-project-manual,
  .web-project-actions,
  .web-project-results {
    padding: 15px;
  }

  .web-project-source {
    min-height: 320px;
    padding: 12px;
  }

  .web-project-preview-frame {
    padding: 8px;
  }

  .web-project-preview-frame iframe {
    height: 300px;
  }

  .web-project-manual-criterion {
    padding: 12px;
  }

  .web-project-manual-option > span {
    gap: 3px 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .code-line {
    transition: none;
  }

  .web-project-link,
  .web-project-file-tab,
  .web-project-preview-heading button {
    transition: none;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (forced-colors: active) {
  .quest-source-highlight {
    display: none;
  }

  #quest-source {
    background: Canvas;
    color: CanvasText;
    -webkit-text-fill-color: CanvasText;
  }

  .web-project-link,
  .web-project-card,
  .web-project-brief,
  .web-project-editor-panel,
  .web-project-preview-panel,
  .web-project-manual,
  .web-project-actions,
  .web-project-results,
  .web-project-manual-criterion,
  .web-project-manual-option,
  .web-project-result-item,
  .web-project-preview-frame,
  .web-project-preview-frame iframe,
  .web-project-file-tab,
  .web-project-preview-heading button,
  .web-project-source {
    border-color: CanvasText;
    background: Canvas;
    color: CanvasText;
  }

  .web-project-link.is-current,
  .web-project-file-tab[aria-pressed="true"],
  .web-project-preview-heading button[aria-pressed="true"],
  .web-project-manual-option:has(input:checked) {
    border-width: 2px;
  }

  .web-project-result-item {
    border-left-width: 4px;
  }
}

/* Shared service navigation and the approved reading layout. */
.learning-shell { min-height: 100dvh; margin-left: var(--sidebar-width); }
.learning-shell .main-area { margin-left: 0; min-height: calc(100dvh - 61px); }
.learning-shell > :is(.loading-page, .empty-page, .error-page),
.learning-shell > :is(.web-project-list-page, .web-project-page) { min-height: calc(100dvh - 61px); }
.learning-shell > :is(.web-project-list-page, .web-project-page) { width: 100%; margin-left: 0; }
.service-sidebar .sidebar-brand strong, .learning-shell .mobile-brand { font-size: 21px; letter-spacing: -.04em; }
.service-navigation { display: grid; gap: 6px; padding: 22px 12px; }
.service-navigation a { display: flex; align-items: center; min-height: 46px; padding: 10px 13px; border-left: 3px solid transparent; border-radius: var(--radius-sm); color: var(--color-text-muted); font-size: 14px; text-decoration: none; }
.service-navigation a:hover { background: var(--color-hover); color: var(--color-text); }
.service-navigation a[aria-current] { border-left-color: var(--color-primary); background: var(--color-secondary); color: var(--color-primary); font-weight: 600; text-decoration: underline; text-underline-offset: 4px; }
.service-sidebar-settings { display: grid; gap: 14px; margin-top: auto; padding: 20px 16px; border-top: 1px solid var(--color-border); }
.sidebar-utility { margin-top: auto; padding: 16px 10px; border-top: 1px solid var(--color-border); }
.sidebar-utility-link { display: flex; min-height: 42px; gap: 10px; align-items: center; padding: 9px 11px; border-left: 2px solid transparent; border-radius: var(--radius-sm); color: var(--color-text-muted); font-size: 12px; text-decoration: none; }
.sidebar-utility-link:hover { background: var(--color-hover); color: var(--color-text); }
.sidebar-utility-link.is-current { border-left-color: var(--color-primary); background: var(--color-secondary); color: var(--color-primary); font-weight: 600; }
.desktop-navigation, .service-icon { display: none; }
.theme-preference { min-width: 0; }
.theme-choices { display: inline-flex; gap: 2px; padding: 3px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); background: var(--color-surface); }
.theme-choices button { min-height: 34px; padding: 4px 10px; border-radius: 5px; background: transparent; color: var(--color-text-muted); font-size: 12px; cursor: pointer; }
.theme-choices button[aria-pressed="true"] { background: var(--color-secondary); color: var(--color-primary); text-decoration: underline; text-underline-offset: 4px; }
.theme-notice { max-width: 28em; margin: 6px 0 0; color: var(--color-warning-text); font-size: 12px; }
.theme-notice[hidden] { display: none; }
.sidebar-services { padding: 12px 16px; border-bottom: 1px solid var(--color-border); }
.sidebar-services nav { display: flex; flex-wrap: wrap; gap: 4px 12px; margin-bottom: 12px; }
.sidebar-services nav a { padding: 5px 0; font-size: 12px; }
.mobile-header .theme-preference { margin-left: auto; }
.service-footer { padding: 19px max(32px, calc((100% - 1040px) / 2)); border-top: 1px solid var(--color-border); color: var(--color-text-muted); font-size: 12px; }
.learning-shell .service-main { width: min(calc(100% - 64px), 1040px); margin: auto; padding: 48px 0 54px; }
.service-intro { padding: 18px 0 43px; }
.service-intro h1 { margin: 17px 0 21px; font-size: clamp(32px, 4.7vw, 49px); line-height: 1.28; letter-spacing: -.045em; font-weight: 600; }
.service-intro h1 span { color: var(--color-primary); }
.service-intro > p:last-child, .catalog-header > p:last-child { color: var(--color-text-muted); font-size: 15px; line-height: 1.9; }
.service-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.service-card, .catalog-card { min-width: 0; padding: 26px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); color: var(--color-text); background: var(--color-surface); text-decoration: none; overflow-wrap: anywhere; }
.service-card { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
.catalog-card:hover { border-color: var(--color-primary); background: var(--color-surface-raised); }
.service-card h2 { margin: 0; font-size: 23px; font-weight: 600; letter-spacing: -.025em; }
.service-card p { flex: 1; margin: 0; color: var(--color-text-muted); font-size: 14px; }
.service-card-number { color: var(--color-primary); font-size: 12px; letter-spacing: .07em; }
.service-card-intro { display: block; color: var(--color-text); margin-bottom: 8px; }
.service-card .button { display: inline-flex; align-items: center; gap: 12px; margin-top: 8px; }
.service-study-path { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 27px 0 0; color: var(--color-text-muted); font-size: 12px; }
.service-study-path > span:first-child { display: flex; flex-wrap: wrap; gap: 10px; }
.resume-card { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 24px; margin: 26px 0; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.resume-card p { margin: 3px 0 0; color: var(--color-text-muted); font-size: 14px; }
.catalog-header h1 { margin: 8px 0; font-size: 33px; font-weight: 600; }
.catalog-filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 14px; padding: 18px; margin: 30px 0 18px; border: 1px solid var(--color-border); background: var(--color-surface); border-radius: var(--radius-sm); }
.catalog-filters label { display: grid; flex: 1 1 230px; min-width: 0; gap: 8px; font-size: 13px; font-weight: 500; }
.catalog-filters input { width: 100%; min-width: 0; min-height: 46px; padding: 9px 12px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); background: var(--color-surface); font-size: 16px; }
.catalog-search-scope { flex-basis: 100%; margin: 0; color: var(--color-text-muted); font-size: 12px; }
.catalog-topics { margin: 28px 0 30px; }
.catalog-topics h2 { margin: 0 0 14px; font-size: 16px; font-weight: 600; }
.catalog-topic-options { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
.catalog-topic { min-width: 0; min-height: 84px; padding: 14px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); text-align: left; cursor: pointer; }
.catalog-topic strong, .catalog-topic span { display: block; }
.catalog-topic strong { font-size: 15px; font-weight: 600; }
.catalog-topic span { margin-top: 5px; font-size: 12px; color: var(--color-text-muted); }
.catalog-topic[aria-pressed="true"] { border-color: var(--color-primary); background: var(--color-secondary); }
.catalog-topic .catalog-topic-selected { color: var(--color-primary); font-weight: 600; }
.catalog-topic:disabled { cursor: default; background: var(--color-surface-raised); color: var(--color-text-muted); opacity: 1; }
.catalog-topic:not(:disabled):hover { border-color: var(--color-primary); }
.quest-course-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 28px 0 18px; }
.quest-course-tabs h2 { grid-column: 1 / -1; margin: 0; font-size: 18px; }
.quest-course-tabs button { min-height: 72px; padding: 14px 16px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); text-align: left; cursor: pointer; }
.quest-course-tabs button:hover { border-color: var(--color-primary); }
.quest-course-tabs button[aria-pressed="true"] { border-color: var(--color-primary); background: var(--color-secondary); }
.quest-course-tabs strong, .quest-course-tabs span { display: block; }
.quest-course-tabs strong { font-size: 15px; }
.quest-course-tabs span { margin-top: 5px; color: var(--color-text-muted); font-size: 12px; }
.quest-course-tabs .catalog-topic-selected { display: block; margin-top: 5px; color: var(--color-primary); font-size: 12px; font-weight: 700; }
.quest-catalog-progress { padding: 16px 18px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); }
.quest-catalog-progress > div:first-child { display: flex; gap: 14px; align-items: center; justify-content: space-between; }
.quest-catalog-progress strong { font-size: 13px; }
.quest-catalog-progress span { color: var(--color-text-muted); font-size: 12px; }
.quest-catalog-progress .progress-track { margin-top: 10px; }
.quest-resume-card { border-left: 4px solid var(--color-primary); }
.quest-catalog-tools { display: grid; grid-template-columns: minmax(0, 2fr) minmax(210px, 1fr); gap: 14px; padding: 22px; margin: 28px 0 18px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.quest-catalog-tools > :is(.quest-catalog-heading-row, [data-quest-catalog-form], .catalog-count, .catalog-notice, .text-button) { grid-column: 1 / -1; }
.quest-catalog-tools h2 { margin: 0; font-size: 20px; }
.quest-catalog-tools header p { margin: 6px 0 0; color: var(--color-text-muted); font-size: 13px; }
.quest-catalog-heading-row { display: grid; gap: 12px; }
.quest-catalog-tools form { display: flex; min-width: 0; gap: 10px; align-items: end; }
.quest-catalog-tools label { display: grid; min-width: 0; flex: 1; gap: 7px; color: var(--color-text-muted); font-size: 12px; font-weight: 600; }
.quest-catalog-tools :is(input, select) { width: 100%; min-width: 0; min-height: 44px; padding: 9px 11px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); background: var(--color-bg); color: var(--color-text); font-size: 15px; }
.quest-catalog-tools .quest-catalog-search { display: flex; align-items: stretch; gap: 0; border: 1px solid var(--color-border-strong); border-radius: var(--radius-md); background: var(--color-bg); }
.quest-catalog-search:focus-within { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.quest-catalog-tools .quest-catalog-search-field { position: relative; display: flex; align-items: center; gap: 0; }
.quest-catalog-tools .quest-catalog-search input { border: 0; border-radius: 0; background: transparent; padding-left: 46px; }
.quest-catalog-search input:focus-visible { outline: 0; }
.quest-catalog-search-icon { position: absolute; left: 17px; width: 15px; height: 15px; border: 2px solid currentColor; border-radius: 50%; color: var(--color-text-muted); pointer-events: none; }
.quest-catalog-search-icon::after { position: absolute; right: -6px; bottom: -3px; width: 7px; height: 2px; background: currentColor; content: ""; transform: rotate(45deg); }
.quest-catalog-tools .quest-catalog-search .button { border: 0; border-left: 1px solid var(--color-border-strong); border-radius: 0; border-top-right-radius: var(--radius-md); border-bottom-right-radius: var(--radius-md); background: var(--color-secondary); white-space: nowrap; }
.quest-catalog-filter-row { display: grid; min-width: 0; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; align-items: end; }
.quest-filter-group { display: grid; min-width: 0; gap: 7px; }
.quest-filter-group label { color: var(--color-text-muted); font-size: 12px; font-weight: 600; }
.quest-catalog-tools > .catalog-count { margin: 0; }
.quest-catalog-preparation { color: var(--color-text-muted); font-size: 13px; font-weight: 400; }
.quest-catalog-list { display: grid; gap: 12px; }
.quest-catalog-card { display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 16px; align-items: start; min-width: 0; padding: 20px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); text-decoration: none; }
.quest-catalog-card:hover { border-color: var(--color-primary); background: var(--color-surface-raised); }
.quest-catalog-number { display: grid; width: 44px; height: 44px; place-items: center; border-radius: var(--radius-sm); background: var(--color-secondary); color: var(--color-primary); font-family: var(--font-mono); font-weight: 800; }
.quest-catalog-card p, .quest-catalog-card h2 { margin: 0; }
.quest-catalog-card > div > p:first-child { color: var(--color-primary); font-size: 11px; font-weight: 700; }
.quest-catalog-card h2 { margin-top: 4px; font-size: 19px; }
.quest-catalog-card h2 + p { margin-top: 7px; color: var(--color-text-muted); font-size: 13px; line-height: 1.6; }
.quest-catalog-card small { display: block; margin-top: 9px; color: var(--color-warning-text); }
.quest-status { min-width: 64px; padding: 6px 9px; border: 1px solid var(--color-border-strong); border-radius: 999px; color: var(--color-text-muted); font-size: 10px; font-weight: 800; text-align: center; }
.quest-status--completed { border-color: var(--color-accent); background: var(--color-success-bg); color: var(--color-success-text); }
.quest-status--previously_completed { border-color: var(--color-warning); background: var(--color-warning-bg); color: var(--color-warning-text); }
.quest-status--in_progress { border-color: var(--color-primary); background: var(--color-brand-tint); color: var(--color-primary); }
.quest-learning-map { padding-top: 36px; margin-top: 38px; border-top: 1px solid var(--color-border); }
.quest-learning-map > header h2 { margin: 5px 0; font-size: 24px; }
.quest-learning-map > header > p:last-child { color: var(--color-text-muted); }
.quest-map-topics { display: grid; gap: 14px; margin-top: 20px; }
.quest-map-topics > article { display: grid; grid-template-columns: minmax(180px, .7fr) minmax(0, 1.5fr); gap: 22px; padding: 20px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.quest-map-topics h3, .quest-map-topics p { margin: 0; }
.quest-map-topics p { margin: 5px 0 10px; color: var(--color-text-muted); font-size: 12px; }
.quest-map-topics ul { display: grid; gap: 12px; padding: 0; margin: 0; list-style: none; }
.quest-map-topics li a { display: flex; gap: 10px; color: var(--color-text); text-decoration: none; }
.quest-map-topics li a span { color: var(--color-primary); font-family: var(--font-mono); }
.quest-map-topics li small { display: block; margin: 5px 0 0 28px; color: var(--color-text-muted); }
.quest-map-topics code, .quest-detail-map code { color: var(--color-inline-code); font-family: var(--font-mono); }
@media (min-width: 1120px) {
  .learning-shell .quest-catalog-main { padding-top: 16px; }
  .quest-catalog-header h1 { margin: 2px 0; font-size: 26px; }
  .quest-catalog-header > p { margin: 0; }
  .quest-catalog-header > p:last-child { font-size: 13px; line-height: 1.5; }
  .quest-course-tabs { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 20px 0 16px; }
  .quest-course-tabs button { min-height: 84px; padding: 14px; }
  .quest-catalog-overview { display: grid; grid-template-columns: 2fr 3fr; gap: 10px; margin-bottom: 10px; }
  .quest-catalog-overview .quest-catalog-progress:only-child { grid-column: 1 / -1; }
  .quest-catalog-overview .quest-catalog-progress { padding: 10px 14px; }
  .quest-catalog-overview .progress-track { margin-top: 6px; }
  .quest-catalog-overview .quest-resume-card { min-width: 0; padding: 8px 12px; margin: 0; }
  .quest-catalog-overview .quest-resume-card p { font-size: 12px; }
  .quest-catalog-overview .quest-resume-card .button { min-height: 36px; padding: 7px 11px; }
  .quest-catalog-workspace { padding: 20px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
  .quest-catalog-workspace .quest-catalog-tools { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 0; margin: 0; border: 0; border-radius: 0; background: transparent; }
  .quest-catalog-workspace .quest-catalog-heading-row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: end; }
  .quest-catalog-workspace .quest-catalog-tools h2 { font-size: 18px; }
  .quest-catalog-workspace .quest-catalog-tools header p { margin-top: 3px; }
  .quest-catalog-workspace .quest-catalog-tools > [data-quest-catalog-form] input { min-height: 52px; font-size: 16px; }
  .quest-catalog-workspace .quest-catalog-filter-row { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr) minmax(0, 1.3fr); gap: 8px; }
  .quest-catalog-workspace .quest-catalog-list { gap: 8px; margin-top: 16px; }
  .quest-catalog-workspace .quest-catalog-card { grid-template-columns: 30px minmax(0, 1fr) auto; gap: 8px; padding: 10px 12px; }
  .quest-catalog-workspace .quest-catalog-number { width: 28px; height: 28px; }
  .quest-catalog-workspace .quest-catalog-card h2 { margin-top: 2px; font-size: 16px; }
  .quest-catalog-workspace .quest-catalog-card h2 + p { margin-top: 3px; font-size: 13px; line-height: 1.45; }
  .quest-catalog-workspace .quest-catalog-card small { margin-top: 3px; }
}
.quest-breadcrumb { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; margin-bottom: 22px; color: var(--color-text-muted); font-size: 12px; }
.quest-breadcrumb [aria-current="page"] { color: var(--color-text); font-weight: 700; }
.quest-location-summary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 20px 0; }
.quest-location-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px 18px; font-size: 13px; }
.quest-detail-map { padding: 18px 20px; margin: 20px 0 26px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.quest-detail-map h2 { margin: 4px 0 8px; font-size: 18px; }
.quest-detail-map > p:not(.quest-section-label) { color: var(--color-text-muted); font-size: 12px; }
.quest-detail-map > div { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.quest-detail-map > div a { padding: 8px 10px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); color: var(--color-text-muted); font-size: 12px; text-decoration: none; }
.quest-detail-map > div a[aria-current="page"] { border-color: var(--color-primary); background: var(--color-secondary); color: var(--color-primary); font-weight: 700; }
.quest-draft-revision-note { color: var(--color-warning-text); font-size: 12px; }
.catalog-source-note { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--color-border); color: var(--color-text-muted); font-size: 12px; }
.catalog-count { padding-top: 22px; border-top: 1px solid var(--color-border); color: var(--color-text-muted); font-size: 14px; }
.catalog-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.catalog-card { display: flex; flex-direction: column; padding: 24px; }
.catalog-card h2 { font-size: 20px; line-height: 1.5; margin: 9px 0 0; font-weight: 600; }
.catalog-card p { color: var(--color-text-muted); font-size: 14px; margin: 10px 0 18px; }
.catalog-card .catalog-keywords { margin-top: 0; font-size: 12px; }
.catalog-kind {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--color-secondary);
  color: var(--color-primary);
  font-weight: 800;
}

.catalog-keyword-picker {
  margin-top: 28px;
}

.catalog-keyword-hint {
  margin: 20px 0 0;
  color: var(--color-text-muted);
}

.catalog-card-action { margin-top: auto; color: var(--color-primary); font-size: 13px; font-weight: 600; }
.catalog-empty { padding: 30px 0; color: var(--color-text-muted); }
.my-page-header .my-page-continue { display: inline-flex; margin-top: 18px; text-decoration: none; }
.my-page-greeting { color: var(--color-text); font-weight: 700; }
.my-page-profile { margin-top: 24px; }
.my-page-profile form { margin-top: 16px; }
.my-page-profile label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 700; }
.my-page-profile-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.my-page-profile input { flex: 1 1 220px; min-width: 0; min-height: 44px; padding: 10px 12px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); background: var(--color-bg); color: var(--color-text); }
.my-page-profile form p { margin: 8px 0 0; color: var(--color-text-muted); font-size: 12px; }
.my-page-profile form [role="status"] { min-height: 1.5em; }
.java-browser-preparation { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 24px; align-items: center; margin-top: 16px; padding: 20px 22px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.java-browser-preparation :is(.eyebrow, h2, p) { margin: 0; }
.java-browser-preparation h2 { margin-top: 4px; font-size: 18px; }
.java-browser-preparation-action { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; }
.java-browser-preparation-action p { max-width: 42em; color: var(--color-text-muted); font-size: 13px; line-height: 1.5; }
.my-page-local-status { display: flex; gap: 20px; align-items: center; justify-content: space-between; padding: 18px 20px; margin-top: 28px; border: 1px solid var(--color-success-text); border-radius: var(--radius-md); background: var(--color-success-bg); }
.my-page-local-status.is-warning { border-color: var(--color-warning-text); background: var(--color-warning-bg); }
.my-page-local-status.is-error { border-color: var(--color-danger); background: var(--color-danger-bg); }
.my-page-local-status h2, .my-page-local-status p { margin: 0; }
.my-page-local-status h2 { font-size: 15px; }
.my-page-local-status p { margin-top: 4px; color: var(--color-text-muted); font-size: 12px; }
.my-page-local-status > span { flex: 0 0 auto; color: var(--color-success-text); font-size: 11px; font-weight: 700; }
.my-page-local-status.is-warning > span { color: var(--color-warning-text); }
.my-page-local-status.is-error > span { color: var(--color-danger-text); }
.my-page-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); padding: 0; margin: 16px 0 0; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.my-page-summary > div { min-width: 0; padding: 17px; border-right: 1px solid var(--color-border); }
.my-page-summary > div:last-child { border-right: 0; }
.my-page-summary dt { color: var(--color-text-muted); font-size: 11px; }
.my-page-summary dd { margin: 4px 0 0; font-size: 23px; font-weight: 700; }
.my-page-summary dd span { margin-left: 3px; color: var(--color-text-muted); font-size: 12px; }
.my-page-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; margin-top: 16px; }
.my-page-panel { min-width: 0; padding: 22px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-soft); }
.my-page-panel--wide { grid-column: 1 / -1; }
.my-page-panel > header :is(.eyebrow, h2) { margin: 0; }
.my-page-panel > header h2 { margin-top: 4px; font-size: 20px; }
.my-page-language-list, .my-page-record-list { display: grid; gap: 10px; padding: 0; margin: 18px 0 0; list-style: none; }
.my-page-language-item { padding: 13px 14px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-bg); }
.my-page-language-item > div:first-child { display: grid; grid-template-columns: 38px minmax(0, 1fr) auto; gap: 10px; align-items: center; }
.my-page-language-item strong, .my-page-language-item small { display: block; }
.my-page-language-item strong { font-size: 12px; }
.my-page-language-item small { margin-top: 2px; color: var(--color-text-muted); font-size: 10px; }
.my-page-language-item a { display: inline-flex; min-height: 44px; align-items: center; padding: 8px 2px; font-size: 11px; font-weight: 700; }
.my-page-language-item .progress-track { margin-top: 10px; }
.my-page-record-link { display: flex; min-width: 0; min-height: 58px; gap: 14px; align-items: center; justify-content: space-between; padding: 12px 14px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-bg); color: var(--color-text-muted); text-decoration: none; }
a.my-page-record-link:hover { border-color: var(--color-primary); background: var(--color-secondary); }
.my-page-record-link.is-unavailable { background: var(--color-surface-raised); }
.my-page-record-link > span { min-width: 0; }
.my-page-record-link :is(small, strong, em) { display: block; overflow-wrap: anywhere; }
.my-page-record-link small { color: var(--color-primary); font-size: 10px; font-weight: 700; }
.my-page-record-link strong { margin-top: 3px; color: var(--color-text); font-size: 13px; }
.my-page-record-link em { margin-top: 3px; color: var(--color-text-muted); font-size: 11px; font-style: normal; }
.my-page-record-link time, .my-page-record-link b { flex: 0 0 auto; color: var(--color-text-muted); font-size: 10px; font-weight: 600; text-align: right; }
.my-page-record-link b { color: var(--color-primary); font-size: 16px; }
.my-page-empty { padding: 24px 18px; margin: 18px 0 0; border: 1px dashed var(--color-border-strong); border-radius: var(--radius-sm); color: var(--color-text-muted); font-size: 12px; text-align: center; }
.my-page-archived > summary { color: var(--color-text); font-size: 14px; font-weight: 700; cursor: pointer; }
.my-page-archived > p { margin: 8px 0 0; color: var(--color-text-muted); font-size: 12px; }
.catalog-empty h2 { color: var(--color-text); font-size: 18px; font-weight: 600; }
.catalog-notice { padding: 14px 18px; border: 1px solid var(--color-warning); border-radius: var(--radius-sm); }
.learning-shell .review-container, .learning-shell .lesson-container { padding-top: 28px; }
.learning-shell .lesson-container { width: min(calc(100% - 64px), 1040px); }
.lesson-layout { display: grid; grid-template-columns: 176px minmax(0, 1fr); gap: 42px; align-items: start; margin-top: 28px; }
.lesson-reading-content { min-width: 0; }
.lesson-toc { position: sticky; top: 28px; max-height: calc(100dvh - 56px); overflow-y: auto; padding: 4px; }
.lesson-toc p { margin: 0 0 12px; font-size: 13px; font-weight: 600; }
.lesson-toc button { width: 100%; display: block; padding: 10px 11px; border-left: 2px solid var(--color-border); background: transparent; color: var(--color-text-muted); font-size: 13px; text-align: left; overflow-wrap: anywhere; cursor: pointer; }
.lesson-toc button:hover { background: var(--color-secondary); color: var(--color-primary); }
.lesson-learning-outcomes { font-size: 15px; line-height: 1.8; scroll-margin-top: 28px; }
.lesson-learning-outcomes p { margin: 0 0 10px; }
.lesson-learning-outcomes ul, .lesson-learning-outcomes ol { margin: 10px 0 0; padding-left: 1.3em; }
.lesson-learning-outcomes li + li { margin-top: 6px; }
.lesson-learning-outcomes + .lesson-overview-summary:not(:empty) { margin-top: 12px; }
.lesson-prerequisites { margin-top: 24px; color: var(--color-text-muted); font-size: 14px; line-height: 1.8; }
.lesson-prerequisites h2 { margin: 0; color: var(--color-text); font-size: 14px; font-weight: 600; scroll-margin-top: 28px; }
.lesson-prerequisites p { margin: 8px 0 0; }
.review-breadcrumb, .lesson-context { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 18px; font-size: 14px; }
.review-breadcrumb span { color: var(--color-text-soft); font-size: 12px; }
.text-button { cursor: pointer; padding: 9px 0; background: transparent; color: var(--color-primary-strong); text-decoration: underline; }
.concept-open { overflow: hidden; }
.concept-dialog { width: min(660px, calc(100% - 32px)); max-height: calc(100dvh - 48px); overflow: auto; padding: 28px; border: 1px solid var(--color-text-muted); border-radius: var(--radius-lg); background: var(--color-surface); color: var(--color-text); box-shadow: var(--shadow-soft); }
.concept-dialog::backdrop { background: var(--color-bg); opacity: .8; }
.concept-dialog-heading { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.concept-dialog-heading h2 { margin: 4px 0 20px; overflow-wrap: anywhere; }
.concept-dialog-heading .icon-button { flex-shrink: 0; }
.concept-dialog .lesson-body { margin-bottom: 28px; overflow-wrap: anywhere; }
:is(.learning-shell, .concept-dialog) :not(pre) > code {
  padding: 0.12em 0.34em;
  border: 1px solid var(--color-inline-code-border);
  border-radius: 5px;
  background: var(--color-inline-code-bg);
  color: var(--color-inline-code);
  font-family: var(--font-mono);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
:is(.code-card, .quiz-code, .syntax-code:not(.quest-source-highlight):not(.coding-test-source-highlight), .coding-test-result-value pre) {
  background: light-dark(#f5f4f0, #202126);
}
:is(.code-card, .quiz-code, .syntax-code:not(.quest-source-highlight):not(.coding-test-source-highlight), .coding-test-result-value pre) code {
  color: var(--color-code-text);
}
.review-container.is-question-view .quiz-option-text p { margin: 0; }
.review-container .quiz-card h2[data-quiz-question-title] { white-space: pre-line; }
.review-container.is-question-view :is(.quiz-option-text, .quiz-option-feedback) { white-space: pre-line; }
.review-container.is-question-view .quiz-option-text .code-card { margin: 4px 0; }
.review-container.is-question-view .quiz-option-text .code-card pre { max-height: 220px; padding: 8px 10px; }
.learning-shell :focus-visible, .concept-dialog :focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
@media (min-width: 601px) and (max-width: 800px) {
  .catalog-topic-options { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .service-intro { padding-bottom: 30px; }
  .service-intro h1 { font-size: 32px; }
  .service-footer { padding: 18px 16px; }
  .mobile-header { gap: 8px; flex-wrap: wrap; }
  .mobile-header .theme-notice { max-width: 13em; }
  .learning-shell .service-main { width: calc(100% - 32px); padding-top: 26px; }
  .service-cards, .catalog-grid { grid-template-columns: 1fr; }
  .service-card { padding: 24px; }
  .service-card h2 { font-size: 20px; }
  .catalog-filters { padding: 16px; }
  .catalog-filters label { flex: 1 1 100%; }
  .catalog-filters .button { width: 100%; }
  .catalog-topic-options { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learning-shell .review-container, .learning-shell .lesson-container { width: calc(100% - 32px); }
  .concept-dialog { padding: 20px; }
  .concept-dialog .button { width: 100%; white-space: normal; }
}
.learning-shell .lesson-context { padding: 6px 0 14px; border-bottom: 1px solid var(--color-border); }
@media (max-width: 820px) {
  .learning-shell { margin-left: 0; }
  .learning-shell .main-area { min-height: calc(100dvh - 125px); }
}
@media (min-width: 821px) {
  .learning-shell { --sidebar-width: 236px; }
  .service-sidebar { background: var(--color-surface); backdrop-filter: none; }
  .service-sidebar .sidebar-brand { flex-shrink: 0; min-height: 80px; padding: 18px 24px 12px; border-bottom: 0; }
  .service-sidebar .sidebar-brand strong { font-size: 23px; }
  .desktop-navigation { display: block; }
  .service-icon { display: block; width: 17px; height: 17px; flex: 0 0 17px; }
  .service-navigation { gap: 3px; padding: 16px 14px 18px; }
  .service-navigation a { gap: 11px; min-height: 42px; padding: 9px 11px; border-left-width: 2px; }
  .service-navigation a[aria-current] { text-decoration: none; }
  .sidebar-search { margin: 0 14px; }
  .sidebar-search label { display: flex; align-items: center; gap: 8px; min-height: 40px; padding: 8px 10px; border: 1px solid var(--color-border-strong); border-radius: 7px; background: var(--color-bg); color: var(--color-text-muted); }
  .sidebar-search input { width: 100%; min-width: 0; border: 0; padding: 0; background: transparent; color: var(--color-text); font-size: 13px; }
  .sidebar-search-results { max-height: 320px; overflow-y: auto; margin-top: 8px; padding: 8px; border: 1px solid var(--color-border-strong); border-radius: 7px; background: var(--color-surface); }
  .sidebar-search-results[hidden] { display: none; }
  .sidebar-search-results h3 { margin: 8px 6px; color: var(--color-text-muted); font-size: 11px; font-weight: 600; }
  .sidebar-search-results p { margin: 7px; font-size: 12px; }
  .sidebar-search-results ul, .sidebar-recent ul { list-style: none; padding: 0; margin: 0; }
  .sidebar-search-results a { display: block; padding: 8px 6px; border-radius: 5px; color: var(--color-text); font-size: 12px; line-height: 1.55; text-decoration: none; overflow-wrap: anywhere; }
  .sidebar-search-results a small { display: block; margin-top: 4px; color: var(--color-text-muted); font-size: 11px; }
  .sidebar-search-results a:hover, .sidebar-recent a:hover, .sidebar-document-list a:hover { background: var(--color-hover); color: var(--color-text); }
  .sidebar-context, .sidebar-recent { margin: 0 14px; padding: 18px 0; border-top: 1px solid var(--color-border); }
  .sidebar-context:empty, .sidebar-recent:empty { display: none; }
  .sidebar-nav-label { display: block; margin: 0 10px 8px; color: var(--color-text-muted); font-size: 11px; font-weight: 600; }
  .sidebar-context select { width: calc(100% - 16px); min-height: 39px; margin: 0 8px 17px; padding: 8px 10px; border: 1px solid var(--color-border-strong); border-radius: 6px; background: var(--color-surface); font-size: 13px; font-weight: 600; }
  .sidebar-context-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 0 10px 7px; color: var(--color-text-muted); font-size: 11px; }
  .sidebar-document-list { display: grid; gap: 2px; margin: 0; padding: 0; list-style: none; }
  .sidebar-document-list a { display: grid; grid-template-columns: 19px minmax(0, 1fr); gap: 5px; padding: 9px; border-left: 2px solid transparent; border-radius: 0 5px 5px 0; color: var(--color-text-muted); font-size: 12px; line-height: 1.55; text-decoration: none; overflow-wrap: anywhere; }
  .sidebar-document-list a[aria-current] { border-left-color: var(--color-primary); color: var(--color-primary); background: var(--color-secondary); font-weight: 600; }
  .sidebar-document-number { padding-top: 2px; font-size: 11px; font-variant-numeric: tabular-nums; }
  .sidebar-document-list li.is-child a { grid-template-columns: 28px minmax(0, 1fr); padding-left: 22px; }
  .sidebar-document-list li.is-child .sidebar-document-number { color: var(--color-primary); font-weight: 700; }
  .sidebar-all { display: flex; align-items: center; justify-content: space-between; gap: 8px; width: 100%; padding: 13px 10px 0; background: transparent; color: var(--color-primary); font-size: 12px; text-align: left; cursor: pointer; }
  .sidebar-nav-empty { margin: 4px 10px; color: var(--color-text-muted); font-size: 12px; }
  .sidebar-recent a { display: block; padding: 7px 10px; border-radius: 5px; color: var(--color-text-muted); font-size: 11px; line-height: 1.6; text-decoration: none; overflow-wrap: anywhere; }
  .service-sidebar-settings { padding: 17px 24px; }
  .lesson-reading-content { padding: 32px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
}
@media (min-width: 1101px) {
  .lesson-layout { grid-template-columns: minmax(0, 1fr) 176px; }
  .lesson-reading-content { grid-column: 1; grid-row: 1; }
  .lesson-toc { grid-column: 2; grid-row: 1; }
}
@media (max-width: 1100px) {
  .quest-workspace { grid-template-columns: minmax(0, 1fr); }
  .lesson-layout { grid-template-columns: 1fr; gap: 27px; }
  .lesson-toc { position: static; max-height: none; display: flex; flex-wrap: wrap; gap: 6px; overflow: visible; }
  .lesson-toc p { flex-basis: 100%; margin-bottom: 4px; }
  .lesson-toc button { width: auto; max-width: 100%; padding: 8px 10px; border: 1px solid var(--color-border-strong); border-radius: 6px; background: var(--color-surface); }
}
@media (pointer: coarse) {
  .theme-choices button, .lesson-toc button { min-height: 44px; }
}

@media (min-width: 821px) {
  .review-container { padding-top: 30px; }
  .review-breadcrumb { margin-bottom: 10px; }
  .review-header { padding-bottom: 12px; }
  .review-header h1 { margin: 7px 0 6px; font-size: 28px; }
  .review-history { margin-top: 7px; }
  .review-progress-copy { margin-top: 12px; }
  .review-progress-track { margin-top: 6px; }
  .quiz-mode-controls { gap: 10px; margin-bottom: 16px; padding: 12px; }
  .quiz-question-list { gap: 16px; }
  .review-container .quiz-card { padding: 21px; }
  .review-container .quiz-question-meta { margin-bottom: 6px; }
  .review-container .quiz-card h2 { font-size: 20px; line-height: 1.5; }
  .review-container .quiz-learning-objective { margin: 12px 0 0; }
  .review-container .quiz-code { margin: 16px 0; }
  .review-container .quiz-code pre { --syntax-gutter: 14px; max-height: 360px; overflow: auto; padding: 14px; }
  .review-container .quiz-options { gap: 8px; margin-top: 16px; }
  .review-container .quiz-options legend { padding-bottom: 7px; }
  .review-container .quiz-option label { gap: 10px; min-height: 44px; padding: 10px 14px; }
  .review-container .quiz-option-marker { width: 24px; height: 24px; }
  .review-container .quiz-option-feedback { padding-top: 8px; margin-top: 8px; }
  .review-container .quiz-answer-summary { padding: 10px 12px; margin-top: 14px; }
  .review-container .quiz-answer-summary h3 { margin: 0; font-size: 14px; }
  .review-container .quiz-lesson-reference { margin: 14px 0; }
  .review-container .quiz-actions { margin-top: 16px; }
  .review-container .quiz-next-help { margin-top: 6px; }
}

@media (min-width: 1100px) {
  .review-container .quiz-mode-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .review-container .quiz-batch-controls { grid-column: 1 / -1; }
}

@media (min-width: 821px) and (max-width: 1119px) {
  .review-container.is-question-view .quiz-option label { min-height: 26px; padding: 2px 4px; }
}

@media (min-width: 1120px) {
  .learning-shell .review-container.is-question-view {
    width: min(calc(100% - 32px), 960px);
  }

  .learning-shell .review-container.is-question-view {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 16px;
    padding-top: 8px;
  }

  .review-container.is-question-view > .review-breadcrumb {
    grid-column: 1;
    grid-row: 1;
    align-self: center;
    margin: 0;
  }

  .review-container.is-question-view > .review-breadcrumb span {
    font-size: 14px;
    line-height: 1.5;
  }

  .review-container.is-question-view > .review-breadcrumb a {
    color: var(--color-text);
    font-size: 15px;
    font-weight: 800;
    text-decoration: none;
  }

  .review-container.is-question-view > .review-breadcrumb a:hover {
    color: var(--color-text);
    text-decoration: none;
  }

  .learning-shell .review-container.is-question-view > .review-scope-trigger {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  .review-container.is-question-view > :is(.catalog-notice, .review-header, .review-progress-track, .quiz-question-list, .quiz-list-result) {
    grid-column: 1 / -1;
  }

  .review-container.is-question-view .review-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 4px;
    padding: 19px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-secondary);
  }

  .review-container.is-question-view .review-header .eyebrow {
    grid-column: 1;
    grid-row: 1;
    justify-content: flex-start;
    margin: 0;
    font-size: 14px;
    line-height: 1.4;
  }

  .review-container.is-question-view .review-header h1 {
    grid-column: 1 / -1;
    margin: 0;
    font-size: 29px;
    line-height: 1.3;
  }

  .review-container.is-question-view .review-header .review-history,
  .review-container.is-question-view .review-progress-copy {
    grid-column: 1 / -1;
  }

  .review-container.is-question-view .review-progress-copy,
  .review-container.is-question-view .review-progress-track {
    margin-top: 0;
  }

  .review-container.is-question-view .review-progress-copy {
    justify-content: flex-start;
    gap: 14px;
    font-size: 14px;
    line-height: 1.5;
  }

  .review-container.is-question-view .review-progress-track {
    background: var(--color-border);
  }

  .review-container.is-question-view .review-header .quiz-mode-controls {
    display: flex;
    flex-wrap: wrap;
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
    max-width: 100%;
    gap: 8px 12px;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
  }

  .review-container.is-question-view .quiz-mode-group {
    flex-wrap: nowrap;
    gap: 0;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
  }

  .review-container.is-question-view .quiz-mode-group > span {
    display: inline-flex;
    align-items: center;
    min-width: 0;
    padding: 0 9px;
    font-size: 12px;
  }

  .review-container.is-question-view .quiz-mode-group .button {
    min-height: 34px;
    padding: 5px 10px;
    border: 0;
    border-left: 1px solid var(--color-border);
    border-radius: 0;
    font-size: 12px;
  }

  .review-container.is-question-view .review-header > .quiz-batch-controls {
    grid-column: 1 / -1;
  }

  .review-container.is-all-view .quiz-question-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .review-container.is-question-view .quiz-card {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 8px 12px;
    padding: 20px;
  }

  .review-container.is-question-view .quiz-card h2 {
    grid-column: 1 / -1;
    grid-row: 2;
    font-size: 20px;
    line-height: 1.5;
  }

  .review-container.is-question-view .quiz-question-meta {
    grid-column: 1;
    grid-row: 1;
    align-self: center;
    margin: 0;
  }

  .review-container.is-question-view .quiz-learning-objective {
    grid-column: 2;
    grid-row: 1;
    align-self: center;
    margin: 0;
    font-size: 12px;
  }

  .review-container.is-question-view .quiz-code,
  .review-container.is-question-view .quiz-form {
    grid-column: 1 / -1;
  }

  .review-container.is-question-view .quiz-code { margin: 12px 0; }
  .review-container.is-question-view .quiz-code figcaption { padding: 5px 10px; }
  .review-container.is-question-view .quiz-code pre {
    max-height: 300px;
    padding: 8px 10px;
  }
  .review-container.is-question-view .quiz-code code { line-height: 1.4; white-space: normal; }
  .review-container.is-question-view .quiz-code .code-line { min-height: 1.4em; white-space: pre; }

  .review-container.is-question-view .quiz-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 12px;
  }

  .review-container.is-question-view .quiz-options,
  .review-container.is-question-view .quiz-form > :is(.quiz-answer-summary, .quiz-learning-objective, .quiz-next-help) {
    grid-column: 1 / -1;
  }

  .review-container.is-question-view .quiz-options {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
    margin: 8px 0 0;
  }

  .review-container.is-question-view .quiz-options legend { padding-bottom: 5px; }
  .review-container.is-question-view .quiz-option label { min-height: 28px; padding: 3px 4px; }
  .review-container.is-question-view .quiz-option-text { font-size: 16px; }
  .review-container.is-question-view .quiz-lesson-reference { grid-column: 1; margin: 5px 0 0; }
  .review-container.is-question-view .quiz-actions { grid-column: 2; margin: 5px 0 0; }
  .review-container.is-question-view .quiz-form > .text-button { grid-column: 1 / -1; }
  .review-container.is-question-view .quiz-actions .button { min-width: 150px; }
  .review-container.is-question-view .quiz-learning-objective { line-height: 1.5; }
  .review-container.is-all-view .quiz-list-result { margin-top: 8px; }

  .review-container.is-question-view .quiz-option-feedback {
    font-size: 12px;
    line-height: 1.5;
  }
}

.review-container .quiz-options {
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  border-top: 1px solid var(--color-border);
  padding-top: 8px;
}
.review-container .quiz-option label {
  align-items: flex-start;
  gap: 9px;
  min-height: 44px;
  padding: 8px 4px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--color-text-soft);
  transition: color 150ms ease;
}
.review-container .quiz-option label:hover { border: 0; background: transparent; color: var(--color-text); }
.review-container .quiz-option input:focus-visible + label { border: 0; outline: 2px solid var(--color-focus); outline-offset: -2px; }
.review-container .quiz-option.is-selected label { border: 0; background: transparent; color: var(--color-primary-strong); font-weight: 700; }
.review-container .quiz-option.is-correct label { border: 0; background: transparent; color: var(--color-accent); }
.review-container .quiz-option.is-incorrect label { border: 0; background: transparent; color: var(--color-danger); }
.review-container .quiz-option-marker {
  display: inline-block;
  flex: 0 0 24px;
  width: 24px;
  height: auto;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.55;
  text-align: right;
}
.review-container .quiz-option.is-selected .quiz-option-marker { border: 0; background: transparent; color: var(--color-primary-strong); text-decoration: underline; }
.review-container .quiz-option.is-correct .quiz-option-marker { border: 0; background: transparent; color: var(--color-accent); }
.review-container .quiz-option.is-incorrect .quiz-option-marker { border: 0; background: transparent; color: var(--color-danger); }

/* External assignments reuse the shell and semantic theme tokens. */
.web-assignment-details { max-width: 960px; margin: 24px auto; line-height: 1.7; overflow-wrap: anywhere; }
.web-assignment-details section { margin-block: 32px; }
.web-assignment-details dt { font-weight: 700; }
.web-assignment-details dd { margin: 0 0 12px; }
.web-assignment-details li { margin-block: 8px; }
.web-assignment-details form { display: grid; gap: 16px; }
.web-assignment-details :is(select, textarea) { width: 100%; padding: 12px; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-surface); color: var(--color-text); font: inherit; }
.web-assignment-details fieldset { min-width: 0; border: 1px solid var(--color-border); border-radius: 8px; }
.web-assignment-check { display: flex; align-items: start; gap: 10px; margin-block: 12px; }
.web-assignment-check input { flex-shrink: 0; margin-top: 7px; }
.web-assignment-details button { justify-self: start; padding: 10px 16px; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-surface); color: var(--color-text); font: inherit; cursor: pointer; }
.web-assignment-details button:disabled { opacity: .6; cursor: not-allowed; }