/* Virgule product surface V3 — visible implementation layer. */
:root {
  --vgl-v3-max: 1200px;
  --vgl-v3-reading: 780px;
  --vgl-v3-gutter: clamp(16px, 4vw, 48px);
  --vgl-v3-line: rgba(232,245,232,.14);
  --vgl-v3-line-soft: rgba(232,245,232,.08);
  --vgl-v3-surface: rgba(12,32,16,.72);
  --vgl-v3-surface-2: rgba(19,40,19,.9);
}
.page-hero, .bib-hero, .parcours-hero, .exam-hero {
  position: relative; isolation: isolate; background-color: var(--ardoise, #101d19);
  background-image: url('/assets/hero/hero-fond.webp'); background-position: center; background-size: cover;
  border-bottom: 1px solid var(--craie-doree-border, rgba(217,168,87,.25));
}
.page-hero::after, .bib-hero::after, .parcours-hero::after, .exam-hero::after { content:''; position:absolute; inset:0; background:rgba(8,20,12,.42); z-index:-1; pointer-events:none; }
@media (max-width:767px) { .page-hero, .bib-hero, .parcours-hero, .exam-hero { background-image:url('/assets/hero/hero-fond-m.webp'); } }
.page-title, .bib-hero-title, .parcours-title, .exam-hero-title { font-family:var(--font-head,'Syne',sans-serif); letter-spacing:-.025em; text-wrap:balance; }
.page-eyebrow, .bib-hero-kicker, .parcours-kicker, .exam-hero-eyebrow { color:var(--craie-doree,#d9a857); letter-spacing:.14em; text-transform:uppercase; font-size:11px; font-weight:500; }
.hero { min-height:min(920px,100svh); }
.hero-tag { color:var(--craie-doree,#d9a857); }
.hero-tagline { max-width:620px; }
.hero-actions { margin-top:28px; }
.btn-lime { background:var(--craie-doree,#d9a857); color:var(--ardoise,#101d19); border-radius:var(--radius-pill); min-height:48px; padding-inline:24px; }
.btn-outline-hero { border-color:rgba(232,245,232,.25); border-radius:var(--radius-pill); min-height:48px; }
.stats-bar { background:var(--ardoise-2,#0c2010); border-block:1px solid var(--vgl-v3-line-soft); padding-block:28px; }
.stat-value { color:var(--craie-doree,#d9a857); }
section { padding-block:clamp(64px,8vw,104px); }
.section-header { max-width:720px; margin-bottom:30px; }
.section-title { font-family:var(--font-head,'Syne',sans-serif); font-size:clamp(28px,4vw,44px); letter-spacing:-.025em; line-height:1.08; text-wrap:balance; }
.section-sub { max-width:620px; line-height:1.7; }
.features-grid, .steps-grid { gap:12px; }
.feature-card, .step-card, .filiere-card, .cours-item { background:var(--vgl-v3-surface); border:1px solid var(--vgl-v3-line); border-radius:var(--radius-lg); }
.feature-card, .step-card { padding:24px; }
.feature-card:hover, .step-card:hover, .filiere-card:hover, .cours-item:hover { transform:none; border-color:var(--craie-doree-border,rgba(217,168,87,.25)); }
.feature-icon, .filiere-icon { color:var(--craie-doree,#d9a857); }
.feature-tag { border-radius:var(--radius-pill); color:var(--craie-doree); background:var(--craie-doree-dim); border-color:var(--craie-doree-border); }
.step-num { color:var(--craie-doree-border,rgba(217,168,87,.35)); }
.bib-main, .parcours-container, .quiz-shell, .examens-shell, .fiche-shell { width:min(calc(100% - 2 * var(--vgl-v3-gutter)),var(--vgl-v3-max)); margin-inline:auto; }
.bib-main { max-width:var(--vgl-v3-max); padding-block:20px 72px; }
.bib-hero { padding-block:clamp(56px,8vw,96px) 34px; }
.bib-grid { gap:12px; }
.bib-card { min-height:132px; padding:20px; background:var(--vgl-v3-surface); border-color:var(--vgl-v3-line); border-radius:var(--radius-lg); transition:border-color .18s ease,background .18s ease,transform .18s ease; }
.bib-card:hover, .bib-card:active { transform:translateY(-1px); background:var(--vgl-v3-surface-2); }
.bib-card-title { font-size:17px; }
.bib-section { padding-block:28px; }
.bib-section-head { padding-block-end:10px; border-bottom:1px solid var(--vgl-v3-line-soft); }
.bib-section-name { font-size:22px; }
.bib-compteurs { color:var(--craie-doree); }
.bib-chip { border-radius:var(--radius-pill); }
.parcours-container { padding-block:28px 72px; }
.subjectCard { background:var(--vgl-v3-surface) !important; border:1px solid var(--vgl-v3-line) !important; border-radius:var(--radius-lg) !important; min-height:112px; }
.subjectCard.active, .subjectCard:hover { border-color:var(--craie-doree-border,rgba(217,168,87,.25)) !important; background:var(--craie-doree-dim) !important; }
.pageHead { width:min(calc(100% - 2 * var(--vgl-v3-gutter)),var(--vgl-v3-reading)); margin-inline:auto; padding-block:26px 16px; }
.qCard, .exercise-card { background:var(--vgl-v3-surface) !important; border:1px solid var(--vgl-v3-line) !important; border-radius:var(--radius-lg) !important; box-shadow:none !important; }
.qCard { max-width:var(--vgl-v3-reading); margin-inline:auto; }
.optGrid, .options-grid { gap:10px; }
.optGrid button, .options-grid button, .q-opt { min-height:52px; border-radius:var(--radius-md); border-color:var(--vgl-v3-line); background:rgba(255,255,255,.035); }
.optGrid button:hover, .options-grid button:hover, .q-opt:hover { border-color:var(--craie-doree-border); }
.examens-shell { padding-block:28px 72px; }
.exams-grid { gap:12px; }
.exam-card { background:var(--vgl-v3-surface) !important; border:1px solid var(--vgl-v3-line) !important; border-radius:var(--radius-lg) !important; min-height:170px; }
.exam-card:hover { border-color:var(--craie-doree-border) !important; transform:none !important; }
.exam-hero { padding-block:clamp(56px,8vw,90px) 34px; }
.rich-hero, .paper-header, .rq-card { background:var(--vgl-v3-surface) !important; border-color:var(--vgl-v3-line) !important; box-shadow:none !important; border-radius:var(--radius-lg) !important; }
.rich-nav-btn.active { color:var(--craie-doree) !important; border-color:var(--craie-doree-border) !important; }
.quiz-shell { padding-block:28px 72px; }
.quiz-progress-header { position:sticky; top:0; z-index:10; background:rgba(12,32,16,.96); border-bottom:1px solid var(--vgl-v3-line-soft); }
.question-card, .result-card { background:var(--vgl-v3-surface) !important; border:1px solid var(--vgl-v3-line) !important; border-radius:var(--radius-lg) !important; box-shadow:none !important; }
.fiche-shell { max-width:var(--vgl-v3-reading); padding-block:28px 72px; }
.fiche-card { background:var(--vgl-v3-surface) !important; border:1px solid var(--vgl-v3-line) !important; border-radius:var(--radius-lg) !important; box-shadow:none !important; }
@media (max-width:767px) {
  .bib-main, .parcours-container, .quiz-shell, .examens-shell, .fiche-shell { width:min(100% - 32px,var(--vgl-v3-max)); }
  .bib-card { min-height:118px; }
  .page-title { font-size:clamp(32px,10vw,44px); }
  .hero { min-height:100svh; }
  .hero-actions { width:min(100%,420px); }
  .hero-actions > * { flex:1 1 100%; text-align:center; }
}
@media (prefers-reduced-motion:reduce) { .bib-card, .subjectCard { transition:none !important; } }
/* V3.1 — full-bleed thresholds and deliberate catalog entry. */
.bib-hero {
  width: 100%;
  max-width: none;
  box-sizing: border-box;
  padding-inline: max(var(--vgl-v3-gutter), calc((100% - var(--vgl-v3-max)) / 2));
}
.bib-hero > * { max-width: 760px; }
.bib-hero h1 { font-size: clamp(36px, 5vw, 62px); line-height: 1.02; }
.bib-hero-sub { font-size: clamp(15px, 1.4vw, 18px); max-width: 640px; }
.bib-toolbar {
  width: 100%;
  max-width: none;
  box-sizing: border-box;
  padding-inline: max(var(--vgl-v3-gutter), calc((100% - var(--vgl-v3-max)) / 2));
  border-bottom: 1px solid var(--vgl-v3-line-soft);
}
.bib-toolbar > * { max-width: 760px; }
.bib-invite {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--craie-pale, #e8f5e8);
  font-family: var(--font-head, 'Syne', sans-serif);
  font-size: 18px;
  font-weight: 500;
  text-align: start;
}
.bib-invite::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--craie-doree, #d9a857);
  flex: 0 0 auto;
}
.bib-section + .bib-section { border-top: 1px solid var(--vgl-v3-line-soft); }
.bib-card { min-height: 142px; }
.bib-card:focus-visible, .bib-toggle-btn:focus-visible { outline: 2px solid var(--craie-doree); outline-offset: 3px; }
@media (max-width: 767px) {
  .bib-hero { padding-inline: 16px; }
  .bib-hero h1 { font-size: clamp(34px, 11vw, 48px); }
  .bib-toolbar { padding-inline: 16px; }
  .bib-invite { font-size: 16px; }
  .bib-card { min-height: 124px; }
}

/* V3.2 — catalog entry: turn the first choice into a concrete learning start. */
.bib-next {
  width: min(calc(100% - 32px), var(--vgl-v3-max));
  margin: 8px auto 0;
  padding: 18px 20px;
  border: 1px solid var(--craie-doree-border);
  border-radius: var(--radius-lg);
  background: var(--vgl-v3-surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.bib-next-copy { min-width: 0; }
.bib-next-kicker {
  display: block;
  margin-bottom: 5px;
  color: var(--craie-doree);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.bib-next-title {
  margin: 0;
  color: var(--craie);
  font-family: var(--font-head, 'Syne', sans-serif);
  font-size: clamp(18px, 2.2vw, 25px);
  font-weight: 500;
  line-height: 1.2;
}
.bib-next-meta { margin-top: 5px; color: var(--craie-pale); font-size: 12px; }
.bib-next-action {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-inline: 17px;
  border: 1px solid var(--craie-doree);
  border-radius: var(--radius-pill);
  background: var(--craie-doree);
  color: var(--ardoise, #091a09);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}
.bib-next-action:focus-visible { outline: 2px solid var(--craie); outline-offset: 3px; }
@media (max-width: 767px) {
  .bib-next { width: calc(100% - 32px); margin-top: 4px; padding: 16px; align-items: stretch; flex-direction: column; gap: 13px; }
  .bib-next-action { justify-content: center; }
}
@media (prefers-reduced-motion: reduce) { .bib-next-action { transition: none; } }