:root {
  --bg: #f5f8fb;
  --bg-strong: #edf4f8;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.88);
  --surface-raised: rgba(255, 255, 255, 0.94);
  --border: rgba(17, 24, 39, 0.08);
  --text: #172433;
  --muted: #667789;
  --accent: #ef6f5e;
  --accent-soft: rgba(239, 111, 94, 0.12);
  --accent-ink: #b3483b;
  --success: #1f7a63;
  --warning: #a6701e;
  --danger: #c24535;
  --shadow: 0 14px 38px rgba(20, 27, 34, 0.07);
  --shadow-hover: 0 20px 54px rgba(20, 27, 34, 0.12);
  --glow: 0 0 0 1px color-mix(in srgb, var(--accent) 18%, transparent 82%);
  --heading-font: "Iowan Old Style", "Baskerville", "Palatino Linotype", serif;
  --body-font: "Avenir Next", "Trebuchet MS", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--body-font);
  color: var(--text);
  background:
    radial-gradient(circle at 12% 12%, rgba(130, 192, 255, 0.16), transparent 24%),
    radial-gradient(circle at 82% 14%, rgba(255, 209, 163, 0.18), transparent 20%),
    linear-gradient(180deg, #fbfdff 0%, var(--bg) 46%, #eef4f8 100%);
  line-height: 1.55;
}

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 30;
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 42%, white 58%));
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 36%, transparent 64%);
  transition: width 120ms linear;
}

body[data-theme="behaviorism"] {
  --accent: #ef6f5e;
  --accent-soft: rgba(239, 111, 94, 0.12);
  --accent-ink: #b34a3c;
}

body[data-theme="constructivism"] {
  --accent: #11a89b;
  --accent-soft: rgba(17, 168, 155, 0.12);
  --accent-ink: #0b7b71;
}

body[data-theme="cognitivism"] {
  --accent: #4b84f0;
  --accent-soft: rgba(75, 132, 240, 0.12);
  --accent-ink: #2f60bb;
}

body[data-theme="interactionism"] {
  --accent: #ff7a6b;
  --accent-soft: rgba(255, 122, 107, 0.12);
  --accent-ink: #c55145;
}

body[data-theme="innovation"] {
  --accent: #f2a43d;
  --accent-soft: rgba(242, 164, 61, 0.13);
  --accent-ink: #b97717;
}

body.is-focus-mode {
  background:
    radial-gradient(circle at 10% 10%, rgba(145, 205, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #fbfdff 0%, #f3f7fb 100%);
}

button,
input,
textarea {
  font: inherit;
}

input,
textarea {
  color: var(--text);
}

kbd {
  display: inline-grid;
  place-items: center;
  min-width: 28px;
  padding: 5px 8px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.04);
  font-size: 0.84rem;
}

.page-aura {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 14% 18%, var(--accent-soft), transparent 18%),
    radial-gradient(circle at 82% 16%, rgba(255, 255, 255, 0.78), transparent 16%),
    radial-gradient(circle at 78% 80%, rgba(54, 110, 170, 0.05), transparent 24%);
  animation: drift 16s ease-in-out infinite alternate;
}

.hero,
.layout,
.insights,
.footer {
  width: min(1280px, calc(100% - 32px));
  margin-left: auto;
  margin-right: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.86fr);
  gap: 24px;
  padding: 34px 0 24px;
  align-items: start;
}

.hero__copy {
  display: grid;
  gap: 18px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--accent-ink);
}

.hero h1,
.sidebar h2,
.panel h2,
.module-banner h2,
.section-title,
.stat-card strong,
.search-card h2,
.cognitive-toolbar h2,
.revision-card__term {
  font-family: var(--heading-font);
}

.hero h1 {
  margin: 0;
  font-size: clamp(3rem, 7vw, 5.4rem);
  line-height: 0.93;
  letter-spacing: 0;
}

.hero__lede {
  max-width: 56ch;
  margin: 0;
  font-size: 1.08rem;
  color: var(--muted);
}

.hero__chips,
.hero__actions,
.shortcut-list,
.chip-cloud,
.toolbar__actions,
.filter-row,
.concept-card__actions,
.revision-card__actions,
.scope-switch,
.mastery-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.chip,
.chip-soft,
.status-chip,
.filter-button,
.scope-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.76);
  font-size: 0.92rem;
}

.chip-soft {
  background: var(--accent-soft);
  color: var(--accent-ink);
}

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero__panel,
.search-card,
.sidebar,
.cognitive-toolbar,
.module-banner,
.section-tabs,
.panel,
.stage__content > .card-block,
.quiz-card,
.revision-card,
.module-button,
.concept-card,
.summary-card,
.author-card,
.transfer-card,
.search-result {
  border-radius: 28px;
}

.hero__panel,
.search-card,
.sidebar,
.cognitive-toolbar,
.module-banner,
.section-tabs,
.panel {
  padding: 22px;
}

.primary-button,
.secondary-button,
.ghost-button,
.mini-button,
.module-button,
.tab-button,
.quiz-option,
.search-result,
.filter-button,
.scope-button,
.mastery-button {
  border: 0;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    opacity 180ms ease;
}

.primary-button,
.secondary-button,
.ghost-button,
.mini-button,
.mastery-button {
  padding: 12px 18px;
  border-radius: 16px;
  font-weight: 600;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 72%, white 28%));
  color: white;
  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent) 24%, transparent 76%);
}

.primary-button,
.secondary-button,
.ghost-button,
.mini-button,
.mastery-button,
.filter-button,
.scope-button,
.tab-button,
.quiz-option {
  position: relative;
  overflow: hidden;
}

.primary-button::after,
.secondary-button::after,
.ghost-button::after,
.mini-button::after,
.mastery-button::after,
.filter-button::after,
.scope-button::after,
.tab-button::after,
.quiz-option::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.34) 45%, transparent 72%);
  opacity: 0;
  transform: translateX(-80%);
  transition: opacity 180ms ease, transform 420ms ease;
  pointer-events: none;
}

.secondary-button,
.ghost-button,
.mini-button,
.mastery-button,
.filter-button,
.scope-button {
  background: rgba(255, 255, 255, 0.76);
  color: var(--text);
  border: 1px solid var(--border);
}

.mastery-button[data-status="mastered"] {
  color: var(--success);
}

.mastery-button[data-status="review"] {
  color: var(--warning);
}

.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover,
.mini-button:hover,
.module-button:hover,
.tab-button:hover,
.quiz-option:hover,
.search-result:hover,
.filter-button:hover,
.scope-button:hover,
.mastery-button:hover {
  transform: translateY(-2px);
}

.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover,
.mini-button:hover,
.tab-button:hover,
.quiz-option:hover,
.filter-button:hover,
.scope-button:hover,
.mastery-button:hover {
  box-shadow: var(--shadow-hover);
}

.primary-button:hover::after,
.secondary-button:hover::after,
.ghost-button:hover::after,
.mini-button:hover::after,
.mastery-button:hover::after,
.filter-button:hover::after,
.scope-button:hover::after,
.tab-button:hover::after,
.quiz-option:hover::after {
  opacity: 1;
  transform: translateX(90%);
}

.primary-button:focus-visible,
.secondary-button:focus-visible,
.ghost-button:focus-visible,
.mini-button:focus-visible,
.module-button:focus-visible,
.tab-button:focus-visible,
.quiz-option:focus-visible,
.search-result:focus-visible,
.filter-button:focus-visible,
.scope-button:focus-visible,
.mastery-button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 65%, white 35%);
  outline-offset: 2px;
}

.muted {
  color: var(--muted);
}

.search-card {
  display: grid;
  gap: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.7));
}

.search-card__head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 12px;
}

.search-card__head h2 {
  margin: 0;
  font-size: 1.35rem;
}

.search-shell {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.search-shell:focus-within {
  border-color: color-mix(in srgb, var(--accent) 34%, var(--border));
  box-shadow: 0 16px 38px color-mix(in srgb, var(--accent) 14%, transparent 86%);
  transform: translateY(-1px);
}

.search-shell__badge {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 800;
}

.search-shell input {
  width: 100%;
  border: 0;
  background: transparent;
  outline: none;
  font-size: 1rem;
}

.search-meta {
  min-height: 1.4rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.search-results {
  display: grid;
  gap: 10px;
}

.search-result {
  width: 100%;
  text-align: left;
  padding: 16px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--border);
}

.search-result__top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
  margin-bottom: 6px;
}

.search-result__type {
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-size: 0.8rem;
  font-weight: 700;
}

.search-result__title {
  font-weight: 800;
}

.search-result__excerpt {
  color: var(--muted);
  font-size: 0.94rem;
}

.hero__panel {
  display: grid;
  gap: 18px;
}

.meter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.radial-card {
  padding: 14px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.72));
  border: 1px solid var(--border);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.radial-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.radial-meter {
  --value: 0;
  width: 86px;
  height: 86px;
  margin: 0 auto 12px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle, rgba(255, 251, 245, 0.96) 58%, transparent 59%),
    conic-gradient(var(--accent) calc(var(--value) * 1%), rgba(24, 41, 53, 0.12) 0);
}

.radial-meter strong {
  font-size: 1.05rem;
}

.radial-card span {
  display: block;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
}

.coach-card {
  padding: 16px 18px;
  border-radius: 22px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent-soft) 72%, white 28%), rgba(255, 255, 255, 0.72));
}

.coach-card p {
  margin: 8px 0 0;
}

.design-rule-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(295px, 0.42fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 22px;
}

.module-list {
  display: grid;
  gap: 12px;
}

.module-button {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: start;
  width: 100%;
  padding: 16px;
  text-align: left;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--border);
  box-shadow: 0 8px 22px rgba(20, 27, 34, 0.03);
}

.module-button.is-active {
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent-soft) 70%, white 30%), rgba(255, 255, 255, 0.82));
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border));
  box-shadow: var(--glow), 0 16px 36px color-mix(in srgb, var(--accent) 10%, transparent 90%);
}

.module-index {
  width: 42px;
  height: 42px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.92);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent-ink);
}

.module-title {
  display: block;
  font-weight: 650;
}

.module-subtitle {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.9rem;
}

.module-meta {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.84rem;
}

.module-progress {
  margin-top: 10px;
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: rgba(24, 41, 53, 0.08);
  overflow: hidden;
}

.module-progress span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 58%, white 42%));
  transition: width 360ms ease;
}

.module-status {
  width: 12px;
  height: 12px;
  margin-top: 5px;
  border-radius: 50%;
  background: rgba(24, 41, 53, 0.12);
}

.module-status.is-complete {
  background: var(--success);
}

.check-list,
.simple-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.check-list li,
.simple-list li {
  margin-bottom: 10px;
}

.shortcut-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--border);
}

.shortcut-list span {
  color: var(--muted);
}

.stage {
  display: grid;
  gap: 18px;
}

.cognitive-toolbar {
  display: grid;
  gap: 14px;
}

.toolbar__head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.toolbar__head h2 {
  margin: 0;
  font-size: 1.4rem;
}

.toolbar__hint {
  color: var(--muted);
  font-size: 0.92rem;
}

.section-progress {
  display: grid;
  grid-template-columns: auto minmax(120px, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 12px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--border);
}

.section-progress span,
.section-progress em {
  color: var(--muted);
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-progress strong {
  display: block;
  margin-top: 2px;
  color: var(--accent-ink);
}

.section-progress__track {
  height: 9px;
  border-radius: 999px;
  background: rgba(24, 41, 53, 0.08);
  overflow: hidden;
}

.section-progress__track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 48%, white 52%));
  transition: width 360ms ease;
}

.module-banner__top,
.module-banner__meta,
.panel__head,
.grid-two,
.grid-three,
.summary-grid,
.transfer-grid,
.repere-grid {
  display: grid;
  gap: 16px;
}

.module-banner__top {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
}

.module-banner__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-soft) 84%, white 16%);
  color: var(--accent-ink);
  font-size: 0.9rem;
  font-weight: 800;
}

.module-banner h2 {
  margin: 8px 0 4px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 0.95;
}

.module-banner p {
  margin: 0;
}

.module-banner__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.module-banner__meta {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 18px;
}

.meta-card {
  padding: 14px 16px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--border);
}

.meta-card span {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.meta-card strong {
  display: block;
  margin-top: 6px;
  font-size: 1rem;
}

.section-tabs {
  display: flex;
  gap: 10px;
  overflow-x: auto;
}

.tab-button {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  white-space: nowrap;
  padding: 12px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--border);
  font-weight: 600;
}

.tab-button span {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 9px;
  background: rgba(24, 41, 53, 0.06);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.tab-button.is-active {
  background: color-mix(in srgb, var(--accent-soft) 70%, white 30%);
  color: var(--accent-ink);
  border-color: color-mix(in srgb, var(--accent) 26%, var(--border));
  box-shadow: var(--glow);
}

.tab-button.is-active span {
  background: var(--accent);
  color: white;
}

.stage__content {
  display: grid;
  gap: 18px;
  animation: fade-up 320ms ease;
}

.card-block {
  padding: 22px;
}

.section-title {
  margin: 0;
  font-size: 1.64rem;
}

.section-intro {
  margin: 6px 0 0;
  color: var(--muted);
}

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

.grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.concept-card,
.author-card,
.quiz-card,
.transfer-card,
.revision-card {
  padding: 18px;
  border-radius: 24px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.author-card:hover,
.quiz-card:hover,
.transfer-card:hover,
.revision-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 20%, var(--border));
  box-shadow: var(--shadow-hover);
}

.summary-card h3,
.concept-card h3,
.author-card h3,
.quiz-card h3,
.transfer-card h3,
.revision-card h3 {
  margin: 0 0 8px;
}

.summary-card p,
.concept-card p,
.author-card p,
.quiz-card p,
.transfer-card p {
  margin: 0;
}

.overview-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.overview-list li {
  padding: 0 0 10px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 56%, transparent 44%);
}

.overview-list li::marker {
  color: var(--accent-ink);
}

.overview-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.author-card.is-highlighted,
.concept-card.is-highlighted,
.simple-list li.is-highlighted {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 28%, transparent 72%);
  background: color-mix(in srgb, var(--accent-soft) 72%, white 28%);
}

.summary-grid,
.repere-grid {
  align-items: start;
}

.summary-card {
  min-width: 0;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.repere-plain-card,
.repere-plain-card .simple-list,
.repere-plain-card .simple-list li {
  background: transparent;
  border: 0;
  box-shadow: none;
}

.repere-plain-card .simple-list {
  padding-left: 20px;
}

.repere-plain-card .simple-list li {
  padding: 0;
}

.repere-plain-card .simple-list li::marker {
  color: var(--accent-ink);
}

.summary-card h3 {
  margin-bottom: 10px;
  color: var(--accent-ink);
  font-size: 0.94rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.summary-card.is-highlighted {
  padding-left: 12px;
  border-left: 3px solid color-mix(in srgb, var(--accent) 42%, transparent 58%);
  background: transparent;
  box-shadow: none;
}

.concept-controls {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 18px;
}

.concept-count {
  color: var(--muted);
}

.filter-button.is-active,
.scope-button.is-active {
  background: color-mix(in srgb, var(--accent-soft) 74%, white 26%);
  color: var(--accent-ink);
  border-color: color-mix(in srgb, var(--accent) 24%, var(--border));
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.concept-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.78));
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.concept-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: color-mix(in srgb, var(--accent) 20%, var(--border));
}

.concept-card::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--accent), color-mix(in srgb, var(--accent) 42%, white 58%));
  pointer-events: none;
  opacity: 0.72;
}

.concept-card__head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.concept-card__signal {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--accent-ink);
}

.status-chip {
  font-size: 0.82rem;
}

.status-chip.is-mastered {
  color: var(--success);
}

.status-chip.is-review {
  color: var(--warning);
}

.status-chip.is-unknown {
  color: var(--muted);
}

.concept-card__prompt {
  color: var(--muted);
}

.concept-card__reveal {
  display: none;
  padding: 14px;
  border-radius: 18px;
  background: rgba(248, 251, 255, 0.9);
  border: 1px solid var(--border);
}

.concept-card.is-revealed .concept-card__reveal {
  display: block;
  animation: fade-up 220ms ease;
}

.concept-card__example {
  margin-top: 10px;
  color: var(--muted);
}

.author-card strong {
  display: block;
  margin-bottom: 6px;
  color: var(--accent-ink);
}

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

.quiz-grid {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.quiz-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.score-badge {
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-soft) 82%, white 18%);
  color: var(--accent-ink);
  font-weight: 800;
}

.quiz-options {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.quiz-option {
  padding: 12px 14px;
  border-radius: 16px;
  text-align: left;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--border);
}

.quiz-option:hover {
  border-color: color-mix(in srgb, var(--accent) 26%, var(--border));
}

.quiz-option.is-selected {
  border-color: color-mix(in srgb, var(--accent) 38%, var(--border));
  background: color-mix(in srgb, var(--accent-soft) 68%, white 32%);
}

.quiz-option.is-correct {
  border-color: rgba(32, 114, 91, 0.32);
  background: rgba(32, 114, 91, 0.11);
}

.quiz-option.is-wrong {
  border-color: rgba(180, 63, 44, 0.28);
  background: rgba(180, 63, 44, 0.1);
}

.feedback {
  margin-top: 14px;
  padding: 14px;
  border-radius: 18px;
  background: rgba(250, 252, 255, 0.92);
  border: 1px solid var(--border);
}

.feedback strong {
  color: var(--accent-ink);
}

.open-question-bank {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}

.question-bank-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: end;
  flex-wrap: wrap;
}

.question-bank-header h3 {
  margin-top: 4px;
  font-size: 1.2rem;
}

.question-bank-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.question-bank-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.78);
  overflow: hidden;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.question-bank-item:hover,
.question-bank-item[open] {
  border-color: color-mix(in srgb, var(--accent) 22%, var(--border));
  box-shadow: 0 12px 28px rgba(20, 27, 34, 0.06);
}

.question-bank-item summary {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.question-bank-item summary::-webkit-details-marker {
  display: none;
}

.question-bank-item summary::after {
  content: "+";
  justify-self: end;
  align-self: center;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 700;
  transition: transform 180ms ease, background-color 180ms ease;
}

.question-bank-item[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

.question-bank-item summary span {
  color: var(--accent-ink);
  font-size: 0.8rem;
  text-transform: uppercase;
}

.question-bank-item p {
  margin: 0;
  padding: 0 16px 16px 120px;
  color: var(--muted);
}

.transfer-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}

.note-box {
  width: 100%;
  min-height: 180px;
  padding: 16px;
  resize: vertical;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
}

.insights {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(320px, 0.92fr);
  gap: 24px;
  padding: 26px 0 42px;
}

.panel__head {
  grid-template-columns: minmax(0, 1fr) minmax(240px, 0.8fr);
  align-items: start;
}

.comparison-wrap {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
}

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

.comparison-table th {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.comparison-table td:first-child,
.comparison-table th:first-child {
  position: sticky;
  left: 0;
  background: linear-gradient(90deg, rgba(255, 252, 247, 0.98), rgba(255, 252, 247, 0.92));
}

.comparison-table .is-current {
  background: var(--accent-soft);
}

.comparison-table tbody tr {
  transition: background-color 160ms ease;
}

.comparison-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.58);
}

.revision-card {
  display: grid;
  gap: 14px;
}

.revision-card__term {
  margin: 8px 0 0;
  font-size: 2.1rem;
  line-height: 1.02;
}

.revision-card__answer {
  padding: 16px;
  border-radius: 18px;
  background: rgba(250, 252, 255, 0.92);
  border: 1px solid var(--border);
}

.footer {
  padding-bottom: 40px;
  color: var(--muted);
}

body.is-focus-mode .comparison-panel {
  display: none;
}

body.is-focus-mode .insights {
  grid-template-columns: 1fr;
}

body.is-focus-mode .page-aura {
  opacity: 0.35;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(10px, -6px, 0) scale(1.02);
  }
}

@media (max-width: 1120px) {
  .hero,
  .layout,
  .insights {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 820px) {
  .hero,
  .layout,
  .insights,
  .footer {
    width: min(100% - 22px, 1280px);
  }

  .hero {
    padding-top: 22px;
  }

  .meter-grid,
  .module-banner__meta,
  .grid-two,
  .grid-three,
  .concept-grid,
  .repere-grid,
  .transfer-grid,
  .panel__head {
    grid-template-columns: 1fr;
  }

  .module-banner__top,
  .toolbar__head,
  .search-card__head,
  .search-shell {
    grid-template-columns: 1fr;
  }

  .search-shell {
    display: grid;
  }

  .question-bank-item summary {
    grid-template-columns: 1fr auto;
  }

  .question-bank-item summary span {
    grid-column: 1 / -1;
  }

  .question-bank-item p {
    padding-left: 16px;
  }

  .section-progress {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2.8rem;
  }

  .hero__panel,
  .search-card,
  .sidebar,
  .cognitive-toolbar,
  .module-banner,
  .section-tabs,
  .panel,
  .card-block {
    padding: 18px;
  }
}