/* French cursive font for subtitle */
.cursive-french {
  font-family: 'Dancing Script', cursive;
  font-weight: 400;
  letter-spacing: 0.003em;
  font-size: 1.38rem;
  opacity: 0.93;
}
.home-video-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
  background: #000;
}

.home-main, .top-nav {
  position: relative;
  z-index: 2;
}

.home-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(160deg, rgba(0,0,0,0.62) 0%, rgba(0,0,0,0.28) 55%, rgba(0,0,0,0.72) 100%);
}

body.home-page {
  min-height: 100vh;
  padding: 2rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  overflow: hidden;
  background: #000;
  color: #fff;
}
.home-video {
  width: 100%;
  max-width: 700px;
  display: block;
  margin: 0 auto 2rem auto;
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  background: #000;
}
:root {
  --bg: #f4f1ea;
  --paper: #fffaf2;
  --ink: #1f2933;
  --muted: #5f6c7b;
  --accent: #0e7a6b;
  --accent-soft: #d8f2ed;
  --line: #d9d1c6;
  --shadow: 0 14px 30px rgba(22, 31, 40, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background:
    radial-gradient(circle at 85% 10%, #fff1d6 0%, transparent 38%),
    radial-gradient(circle at 10% 18%, #d8f2ed 0%, transparent 40%),
    var(--bg);
  color: var(--ink);
  font-family: "Source Sans 3", sans-serif;
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  z-index: 35;
  pointer-events: none;
  background: rgba(255, 250, 242, 0.42);
  border-bottom: 1px solid rgba(217, 209, 198, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.top-nav {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 40;
  display: flex;
  gap: 0.95rem;
}

.top-nav-link {
  color: var(--ink);
  padding: 0.12rem 0;
  font-family: "Source Sans 3", sans-serif;
  text-decoration: none;
  font-weight: 700;
  border-bottom: 2px solid transparent;
}

.top-nav-link:hover,
.top-nav-link.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.home-page {
  min-height: 100vh;
  padding: 2rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

body:not(.home-page) {
  padding-top: 78px;
}

.home-main {
  width: min(980px, 94vw);
  margin: 0 auto;
}

.home-plain {
  padding: 0;
  text-align: center;
  background: transparent;
}

.home-plain h1 {
  font-size: clamp(4.5rem, 13vw, 10rem);
  line-height: 0.88;
  margin-bottom: 1.4rem;
  letter-spacing: -0.03em;
  color: #fff;
  text-shadow: 0 2px 60px rgba(0,0,0,0.4);
}

.home-actions {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

.home-action {
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 999px;
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: rgba(255,255,255,0.88);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.6rem;
  letter-spacing: 0.01em;
  box-shadow:
    0 2px 16px rgba(0,0,0,0.18),
    inset 0 1px 0 rgba(255,255,255,0.14);
  transition: background 0.22s, border-color 0.22s, color 0.22s, box-shadow 0.22s;
}

.home-action:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.42);
  color: #fff;
  box-shadow:
    0 6px 28px rgba(0,0,0,0.28),
    inset 0 1px 0 rgba(255,255,255,0.22);
}

.vocab-page {
  min-height: 100vh;
  padding: 2rem 1rem;
}

.vocab-main {
  width: min(980px, 94vw);
  margin: 0 auto;
}

.vocab-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.vocab-card h1 {
  margin: 0 0 0.4rem;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
}

.vocab-note {
  color: var(--muted);
  margin: 0 0 0.8rem;
}

.vocab-editor {
  width: 100%;
  height: 100%;
  resize: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  line-height: 1.6;
  padding: 0.8rem;
}

.vocab-editor:focus {
  outline: 2px solid #8dc9bf;
  border-color: #8dc9bf;
}

.vocab-status {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero {
  padding: 4rem 1.25rem 2rem;
  text-align: center;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: "Playfair Display", serif;
  letter-spacing: 0.01em;
}

h1 {
  margin: 0.35rem 0;
  font-size: clamp(2rem, 5vw, 3.3rem);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.layout {
  width: min(1160px, 92vw);
  margin: 0 auto 3rem;
  display: grid;
  grid-template-columns: 270px 1fr;
  gap: 1.4rem;
  align-items: start;
}

.left-stack {
  position: sticky;
  top: 86px;
  display: grid;
  gap: 0.9rem;
}

.toc {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem;
  box-shadow: var(--shadow);
}

.toc h2 {
  margin: 0 0 0.8rem;
  font-size: 1.25rem;
}

.toc nav {
  display: grid;
  gap: 0.5rem;
}

.toc a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  border-left: 3px solid transparent;
  padding-left: 0.5rem;
}

.toc a:hover {
  border-left-color: var(--accent);
  color: var(--accent);
}

.version-box {
  margin-top: 1rem;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  display: grid;
  gap: 0.45rem;
}

.version-box h3 {
  margin: 0 0 0.2rem;
  font-size: 1rem;
}

.version-btn {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  padding: 0.4rem 0.6rem;
  text-align: left;
  cursor: pointer;
}

.version-btn:hover,
.version-btn.is-active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.content {
  display: grid;
  gap: 1rem;
}

.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.25rem 1.2rem;
  box-shadow: var(--shadow);
}

.panel h2 {
  margin-top: 0;
  margin-bottom: 0.9rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.panel h3 {
  margin-top: 1.1rem;
  margin-bottom: 0.5rem;
  font-size: 1.16rem;
}

.projet-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1rem;
  align-items: start;
}

.teacher-comment {
  position: sticky;
  top: 92px;
  border: 1px solid #e9a3a3;
  background: #fff1f1;
  border-radius: 12px;
  padding: 0.8rem;
  box-shadow: 0 8px 18px rgba(110, 12, 12, 0.12);
}

.teacher-comment h3 {
  margin-top: 0;
  color: #8d0f0f;
}

.teacher-comment p {
  margin: 0.45rem 0;
  color: #8d0f0f;
}

.category-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.8rem;
}

.category-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 999px;
  padding: 0.42rem 0.95rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.category-btn:hover,
.category-btn.is-active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.artifact-grid {
  display: grid;
  gap: 0.8rem;
}

.artifact {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 0.85rem;
}

.artifact.is-new-in-version {
  border-color: #0e7a6b;
  box-shadow: 0 0 0 3px rgba(14, 122, 107, 0.16);
  background: #f4fffc;
}

.versioned.is-new-in-version {
  background: #f4fffc;
  box-shadow: inset 0 0 0 2px rgba(14, 122, 107, 0.16);
}

.background-block {
  border-radius: 10px;
  padding: 0.05rem 0.45rem 0.4rem;
}

.artifact h3 {
  margin-top: 0;
}

.thumbnail-link {
  display: inline-block;
  margin: 0.35rem 0 0.2rem;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.youtube-thumbnail {
  display: block;
  width: min(100%, 420px);
  height: auto;
}

.thumbnail-link:hover {
  box-shadow: 0 8px 18px rgba(22, 31, 40, 0.15);
}

a {
  color: #004d45;
  word-break: break-word;
}

ul {
  margin-top: 0;
  padding-left: 1.15rem;
}

.hidden {
  display: none;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .left-stack {
    position: relative;
    top: 0;
  }

  .projet-layout {
    grid-template-columns: 1fr;
  }

  .teacher-comment {
    position: relative;
    top: 0;
  }
}

/* ============================================
   HOME PAGE — GLASS REDESIGN OVERRIDES
   ============================================ */

/* Hide the generic glass bar on the home page */
body.home-page::before {
  display: none;
}

/* Centered floating glass pill nav */
body.home-page .top-nav {
  top: 1.5rem;
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  white-space: nowrap;
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  gap: 0.1rem;
  box-shadow:
    0 8px 32px rgba(0,0,0,0.28),
    inset 0 1px 0 rgba(255,255,255,0.13);
}

body.home-page .top-nav-link {
  color: rgba(255,255,255,0.75);
  border-bottom: none;
  padding: 0.38rem 0.85rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.9rem;
  transition: background 0.2s, color 0.2s;
}

body.home-page .top-nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.11);
  border-bottom-color: transparent;
}

body.home-page .top-nav-link.is-active {
  color: #fff;
  background: rgba(255,255,255,0.14);
  border-bottom-color: transparent;
}

/* Eyebrow label */
body.home-page .eyebrow {
  color: rgba(255,255,255,0.5);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  font-weight: 600;
  margin-bottom: 1.2rem;
}

/* Subtitle */
body.home-page .subtitle {
  color: rgba(255,255,255,0.82);
  font-size: 1.22rem;
  line-height: 1.75;
  max-width: 460px;
  margin: 0 auto 2.8rem;
  font-weight: 400;
}

/* Actions spacing */
body.home-page .home-actions {
  margin-top: 0;
  gap: 0.7rem;
}

/* ============================================
   ALL OTHER PAGES — WARM LIGHT GLASS THEME
   ============================================ */

body:not(.home-page) {
  background:
    radial-gradient(ellipse at 82% 0%,   rgba(255, 200, 140, 0.50) 0%, transparent 48%),
    radial-gradient(ellipse at 5%  95%,  rgba(200, 180, 255, 0.32) 0%, transparent 44%),
    radial-gradient(ellipse at 48% 52%,  rgba(255, 230, 180, 0.22) 0%, transparent 58%),
    radial-gradient(ellipse at 0%  10%,  rgba(255, 220, 190, 0.28) 0%, transparent 38%),
    #fdf7ee;
  color: #3a2d1a;
}

/* Warm frosted top bar */
body:not(.home-page)::before {
  background: rgba(253, 247, 238, 0.75);
  border-bottom: 1px solid rgba(210, 185, 150, 0.22);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* Centered warm glass pill nav */
body:not(.home-page) .top-nav {
  top: 1.25rem;
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.68);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  gap: 0.1rem;
  box-shadow:
    0 4px 20px rgba(180, 130, 60, 0.13),
    inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

body:not(.home-page) .top-nav-link {
  color: rgba(58, 42, 18, 0.62);
  border-bottom: none;
  padding: 0.38rem 0.85rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.9rem;
  transition: background 0.2s, color 0.2s;
}

body:not(.home-page) .top-nav-link:hover {
  color: #1c1106;
  background: rgba(180, 130, 60, 0.1);
  border-bottom-color: transparent;
}

body:not(.home-page) .top-nav-link.is-active {
  color: #1c1106;
  background: rgba(180, 130, 60, 0.14);
  border-bottom-color: transparent;
}

/* Hero / page header text */
body:not(.home-page) .eyebrow {
  color: rgba(140, 100, 45, 0.75);
  letter-spacing: 0.18em;
}

body:not(.home-page) h1 {
  color: #1c1106;
}

body:not(.home-page) h2 {
  color: #2a1e0a;
}

body:not(.home-page) h3 {
  color: #3a2a12;
}

body:not(.home-page) .subtitle {
  color: rgba(90, 68, 35, 0.68);
}

/* Links */
body:not(.home-page) a {
  color: #6b4820;
}

body:not(.home-page) a:hover {
  color: #1c1106;
}

/* Glass panels */
body:not(.home-page) .panel {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow:
    0 4px 28px rgba(180, 130, 60, 0.09),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  color: #3a2d1a;
}

/* TOC sidebar */
body:not(.home-page) .toc {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 4px 28px rgba(180, 130, 60, 0.09), inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

body:not(.home-page) .toc h2 {
  color: #1c1106;
}

body:not(.home-page) .toc a {
  color: rgba(58, 42, 18, 0.62);
  border-left-color: transparent;
}

body:not(.home-page) .toc a:hover {
  color: #1c1106;
  border-left-color: rgba(180, 130, 60, 0.5);
}

/* Version box */
body:not(.home-page) .version-box {
  background: rgba(255, 255, 255, 0.45);
  border-color: rgba(210, 185, 150, 0.38);
}

body:not(.home-page) .version-box h3 {
  color: #2a1e0a;
}

body:not(.home-page) .version-btn {
  background: rgba(255, 255, 255, 0.52);
  border-color: rgba(210, 185, 150, 0.42);
  color: rgba(58, 42, 18, 0.68);
}

body:not(.home-page) .version-btn:hover,
body:not(.home-page) .version-btn.is-active {
  background: rgba(180, 130, 60, 0.14);
  border-color: rgba(180, 130, 60, 0.45);
  color: #1c1106;
}

/* Vocab card */
body:not(.home-page) .vocab-card {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 4px 28px rgba(180, 130, 60, 0.09), inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

body:not(.home-page) .vocab-note {
  color: rgba(90, 68, 35, 0.62);
}

body:not(.home-page) .vocab-editor {
  background: rgba(255, 255, 255, 0.65);
  border-color: rgba(210, 185, 150, 0.45);
  color: #3a2d1a;
}

body:not(.home-page) .vocab-editor::placeholder {
  color: rgba(130, 100, 55, 0.38);
}

body:not(.home-page) .vocab-editor:focus {
  outline-color: rgba(180, 130, 60, 0.45);
  border-color: rgba(180, 130, 60, 0.5);
}

body:not(.home-page) .vocab-status {
  color: rgba(90, 68, 35, 0.5);
}

/* Category filter buttons */
body:not(.home-page) .category-btn {
  background: rgba(255, 255, 255, 0.52);
  border-color: rgba(210, 185, 150, 0.4);
  color: rgba(58, 42, 18, 0.68);
}

body:not(.home-page) .category-btn:hover,
body:not(.home-page) .category-btn.is-active {
  background: rgba(180, 130, 60, 0.14);
  border-color: rgba(180, 130, 60, 0.45);
  color: #1c1106;
}

/* Artifact cards */
body:not(.home-page) .artifact {
  background: rgba(255, 255, 255, 0.42);
  border-color: rgba(210, 185, 150, 0.32);
  color: #3a2d1a;
}

body:not(.home-page) .artifact.is-new-in-version {
  border-color: rgba(14, 122, 107, 0.32);
  box-shadow: 0 0 0 3px rgba(14, 122, 107, 0.08);
  background: rgba(14, 122, 107, 0.05);
}

body:not(.home-page) .versioned.is-new-in-version {
  background: rgba(14, 122, 107, 0.05);
  box-shadow: inset 0 0 0 2px rgba(14, 122, 107, 0.13);
}

/* Background block (versioned highlight) */
body:not(.home-page) .background-block {
  background: rgba(255, 248, 235, 0.65);
  border: 1px solid rgba(210, 185, 150, 0.25);
  border-radius: 10px;
}

/* Teacher comment — keeps warm red feel */
body:not(.home-page) .teacher-comment {
  background: rgba(255, 244, 240, 0.78);
  border-color: rgba(220, 140, 120, 0.38);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

body:not(.home-page) .teacher-comment h3 {
  color: #8d0f0f;
}

body:not(.home-page) .teacher-comment p {
  color: #7a2020;
}

/* Thumbnail links */
body:not(.home-page) .thumbnail-link {
  border-color: rgba(210, 185, 150, 0.38);
}

body:not(.home-page) .thumbnail-link:hover {
  box-shadow: 0 8px 24px rgba(180, 130, 60, 0.18);
}