:root {
  --ink: #111111;
  --ink-soft: #5B5B5B;
  --ink-faint: #8A8A87;
  --bg: #FFFFFF;
  --surface: #F7F7F5;
  --surface-2: #EFEFEC;
  --border: #E3E3E0;
  --border-strong: #C9C9C5;
  --accent: #2F5FEA;
  --accent-deep: #1E44BD;
  --accent-tint: #EAF0FF;
  --accent-ink: #14265E;
  --font-display: "Sora", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --radius: 14px;
  --radius-sm: 8px;
  --max-w: 1160px;
  --shadow: 0 1px 2px rgba(17,17,17,0.04), 0 16px 32px -16px rgba(17,17,17,0.14);
}
/* Filière-specific accent — applied via body class so SM and SPC feel distinct as you navigate */
body.filiere-spc { --accent: #E8622A; --accent-deep: #C74E1C; --accent-tint: #FDECE3; --accent-ink: #7A2E12; }
* { box-sizing: border-box; }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font-body); font-size: 16px; line-height: 1.6; }
a { color: var(--ink); }
a:focus-visible, button:focus-visible, .tab:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
img { max-width: 100%; }
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 28px; }

/* NAV */
header.site { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
nav.wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; color: var(--ink); text-decoration: none; }
.brand-icon { width: 30px; height: 30px; object-fit: contain; }
nav ul.links { display: flex; gap: 30px; list-style: none; margin: 0; padding: 0; }
nav ul.links a { text-decoration: none; color: var(--ink-soft); font-size: 0.94rem; font-weight: 500; }
nav ul.links a:hover { color: var(--ink); }
.nav-cta { font-weight: 600; font-size: 0.88rem; text-decoration: none; color: #fff; background: var(--accent); padding: 10px 20px; border-radius: 999px; }
.nav-cta:hover { background: var(--accent-deep); }
@media (max-width: 800px) { nav ul.links { display: none; } }

/* HERO */
.hero { padding: 84px 0 56px; text-align: center; }
.pill { display: inline-flex; align-items: center; gap: 8px; font-size: 0.8rem; font-weight: 600; color: var(--accent-ink); background: var(--accent-tint); border: 1px solid var(--accent); padding: 7px 16px; border-radius: 999px; margin-bottom: 26px; }
.pill::before { content: "●"; font-size: 0.5rem; color: var(--accent); }
h1.hero-title { font-family: var(--font-display); font-weight: 700; font-size: clamp(2.3rem, 5vw, 3.4rem); line-height: 1.1; margin: 0 auto 20px; max-width: 17ch; color: var(--ink); }
.hero-sub { font-size: 1.1rem; color: var(--ink-soft); max-width: 52ch; margin: 0 auto 34px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 46px; }
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-body); font-weight: 600; font-size: 0.95rem; text-decoration: none; padding: 14px 26px; border-radius: 999px; border: 1.5px solid var(--ink); transition: transform 0.15s ease, background 0.15s ease; }
.btn-fill { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-fill:hover { background: var(--accent-deep); border-color: var(--accent-deep); transform: translateY(-1px); }
.btn-line { background: #fff; color: var(--ink); }
.btn-line:hover { background: var(--surface); transform: translateY(-1px); }

.stat-strip { display: flex; gap: 0; justify-content: center; max-width: 760px; margin: 0 auto; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.stat { flex: 1; padding: 24px 18px; text-align: center; border-right: 1px solid var(--border); }
.stat:last-child { border-right: none; }
.stat b { display: block; font-family: var(--font-display); font-size: 1.85rem; color: var(--accent); }
.stat span { font-size: 0.74rem; color: var(--ink-soft); letter-spacing: 0.02em; }

/* SECTIONS */
.section { padding: 76px 0; }
.section-head { text-align: center; max-width: 62ch; margin: 0 auto 44px; }
.section-label { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; display: block; }
.section h2 { font-family: var(--font-display); font-size: clamp(1.7rem, 3vw, 2.25rem); font-weight: 700; margin: 0 0 12px; }
.section-head p { color: var(--ink-soft); margin: 0; }

/* VALUE CARDS */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 860px) { .value-grid { grid-template-columns: 1fr; } }
.value-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px 26px; }
.value-card .icon { width: 44px; height: 44px; border-radius: 10px; background: var(--accent-tint); border: 1px solid var(--accent); color: var(--accent-ink); display: flex; align-items: center; justify-content: center; font-weight: 700; margin-bottom: 18px; font-family: var(--font-display); font-size: 0.95rem; }
.value-card h3 { font-family: var(--font-display); font-size: 1.14rem; margin: 0 0 8px; }
.value-card p { color: var(--ink-soft); font-size: 0.94rem; margin: 0; }

/* FILIERE + SUBJECT GRIDS */
.filiere-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
@media (max-width: 760px) { .filiere-grid { grid-template-columns: 1fr; } }
.filiere-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 30px; text-decoration: none; color: var(--ink); display: block; transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease; }
.filiere-card:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--shadow); }
.filiere-card .tag { display: inline-block; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; margin-bottom: 16px; }
.filiere-card.tag-sm .tag { background: #EAF0FF; border: 1px solid #2F5FEA; color: #14265E; }
.filiere-card.tag-spc .tag { background: #FDECE3; border: 1px solid #E8622A; color: #7A2E12; }
.filiere-card.tag-sm:hover { border-color: #2F5FEA; }
.filiere-card.tag-spc:hover { border-color: #E8622A; }
.filiere-card h3 { font-family: var(--font-display); font-size: 1.4rem; margin: 0 0 8px; }
.filiere-card p { color: var(--ink-soft); font-size: 0.95rem; margin: 0 0 16px; }
.filiere-card .meta { font-size: 0.82rem; font-weight: 600; color: var(--accent); }

.subject-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 900px) { .subject-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .subject-grid { grid-template-columns: 1fr; } }
.subj-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 22px; text-decoration: none; color: var(--ink); display: block; transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease; }
.subj-card:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--shadow); }
.subj-card .badge { width: 40px; height: 40px; border-radius: 10px; background: var(--accent-tint); border: 1px solid var(--accent); color: var(--accent-ink); display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 0.72rem; font-weight: 700; margin-bottom: 16px; }
.subj-card h3 { font-family: var(--font-display); font-size: 1.15rem; margin: 0 0 6px; }
.subj-card .meta { font-size: 0.78rem; color: var(--ink-soft); font-weight: 600; }

/* STEPS */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }
.step { text-align: center; }
.step .num { width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 700; margin: 0 auto 16px; font-size: 0.92rem; }
.step h3 { font-family: var(--font-display); font-size: 1.08rem; margin: 0 0 8px; }
.step p { color: var(--ink-soft); margin: 0; font-size: 0.92rem; }

/* PARTNER */
.partner { background: var(--accent-ink); border-radius: var(--radius); padding: 48px 40px; }
.partner .wrap { padding: 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.partner p { margin: 0; max-width: 54ch; color: #F2F2F0; font-size: 1.02rem; }
.partner .tag { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: #fff; border: 1px solid rgba(255,255,255,0.4); padding: 9px 16px; border-radius: 999px; white-space: nowrap; }

/* FOOTER */
footer.site { padding: 56px 0 0; border-top: 1px solid var(--border); margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 36px; padding-bottom: 40px; }
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand p { color: var(--ink-soft); font-size: 0.9rem; max-width: 42ch; margin-top: 14px; }
footer.site h4 { font-family: var(--font-display); font-size: 0.92rem; margin: 0 0 14px; }
footer.site ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
footer.site a { color: var(--ink-soft); text-decoration: none; font-size: 0.9rem; }
footer.site a:hover { color: var(--ink); }
.footer-bottom { border-top: 1px solid var(--border); padding: 22px 0; font-size: 0.82rem; color: var(--ink-faint); }

/* SUBJECT / BREADCRUMB */
.breadcrumb { font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 18px; text-align: center; }
.breadcrumb a { color: var(--accent); text-decoration: none; font-weight: 500; }
.breadcrumb a:hover { text-decoration: underline; }

/* TRACK TABS */
.track-tabs { display: flex; gap: 10px; justify-content: center; margin: 0 0 40px; }
.track-tab { font-family: var(--font-body); font-size: 0.9rem; font-weight: 600; background: #fff; border: 1.5px solid var(--border-strong); border-radius: 999px; padding: 11px 24px; cursor: pointer; color: var(--ink-soft); }
.track-tab.active { border-color: var(--accent); color: #fff; background: var(--accent); }
.track-panel { display: none; }
.track-panel.active { display: block; }

.year-group { margin-bottom: 30px; }
.year-group h3 { font-family: var(--font-display); font-size: 1.08rem; color: var(--ink); border-bottom: 1px solid var(--border); padding-bottom: 10px; margin-bottom: 12px; }
.paper-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 15px 20px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 8px; flex-wrap: wrap; }
.paper-row .info { display: flex; align-items: center; gap: 14px; }
.session-badge { font-size: 0.72rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border-strong); color: var(--ink); }
.session-badge.rattrapage { background: var(--accent); color: #fff; border-color: var(--accent); }
.paper-row .name { font-weight: 500; font-size: 0.94rem; }
.paper-row .links { display: flex; gap: 10px; }
.paper-row .links a { font-size: 0.82rem; font-weight: 600; text-decoration: none; padding: 8px 14px; border-radius: var(--radius-sm); border: 1px solid var(--ink); color: var(--ink); }
.paper-row .links a.correction { background: var(--accent); border-color: var(--accent); color: #fff; }
.paper-row .links a:hover { background: var(--ink); color: #fff; }
.paper-row .links a.correction:hover { background: var(--accent-deep); }
.paper-row .links .pending { font-size: 0.78rem; color: var(--ink-faint); font-style: italic; padding: 8px 4px; }

.empty-note { font-size: 0.88rem; color: var(--ink-soft); text-align: center; border: 1px dashed var(--border-strong); padding: 20px; border-radius: var(--radius-sm); margin-top: 8px; }

.data-note { max-width: 700px; margin: 0 auto 30px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 18px; font-size: 0.85rem; color: var(--ink-soft); text-align: center; }

/* ============== DARK MODE ============== */
:root[data-theme="dark"] {
  --ink: #F2F2F0;
  --ink-soft: #B8B8B4;
  --ink-faint: #8A8A87;
  --bg: #0B0B0A;
  --surface: #161615;
  --surface-2: #1E1E1C;
  --border: #2A2A28;
  --border-strong: #3A3A37;
  --accent-tint: #182238;
  --accent-ink: #AEC4FF;
}
body.filiere-spc[data-theme="dark"], :root[data-theme="dark"] body.filiere-spc { --accent-tint: #2A1D14; --accent-ink: #F5B48A; }
:root[data-theme="dark"] .filiere-card,
:root[data-theme="dark"] .subj-card,
:root[data-theme="dark"] .value-card,
:root[data-theme="dark"] .paper-row,
:root[data-theme="dark"] .stat-strip,
:root[data-theme="dark"] .track-tab,
:root[data-theme="dark"] .faq-item { background: var(--surface); }
:root[data-theme="dark"] .btn-line { background: var(--surface); border-color: var(--border-strong); color: var(--ink); }
:root[data-theme="dark"] .partner { background: var(--surface-2); }
:root[data-theme="dark"] header.site { background: rgba(11,11,10,0.92); }
:root[data-theme="dark"] .filiere-card.tag-sm .tag { background: #16233F; border-color: #4C74E8; color: #AEC4FF; }
:root[data-theme="dark"] .filiere-card.tag-spc .tag { background: #33200F; border-color: #E8783D; color: #F5B48A; }
:root[data-theme="dark"] .brand-icon { filter: invert(1); }

/* ============== NAV UTILITY BUTTONS (dark mode / translate / contact) ============== */
.nav-utils { display: flex; align-items: center; gap: 10px; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 999px; border: 1px solid var(--border-strong);
  background: var(--surface); color: var(--ink); display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 1rem; padding: 0;
}
.icon-btn:hover { border-color: var(--ink); }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn .icon-sun { display: none; }
:root[data-theme="dark"] .icon-btn .icon-moon { display: none; }
:root[data-theme="dark"] .icon-btn .icon-sun { display: block; }
.lang-btn {
  border-radius: 999px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink);
  font-size: 0.8rem; font-weight: 700; padding: 0 12px; height: 38px; cursor: pointer;
}
.lang-btn:hover { border-color: var(--ink); }

/* ============== SCROLL REVEAL ============== */
/* Default: fully visible. Only fades+slides if JS confirms it's running (html.js-ready). This means a JS failure never hides content. */
.reveal { opacity: 1; transform: none; }
html.js-ready .reveal { opacity: 0; transform: translateY(28px) scale(0.98); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16,1,0.3,1); }
html.js-ready .reveal.in-view { opacity: 1; transform: translateY(0) scale(1); }
@media (prefers-reduced-motion: reduce) { html.js-ready .reveal { opacity: 1; transform: none; transition: none; } }

/* ============== COUNTDOWN ============== */
.countdown { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin: 0 auto 20px; }
.countdown-box { background: var(--accent); color: #fff; border-radius: var(--radius-sm); padding: 20px 24px; min-width: 96px; text-align: center; }
.countdown-box b { display: block; font-family: var(--font-display); font-size: 2.2rem; line-height: 1; }
.countdown-box span { font-size: 0.7rem; letter-spacing: 0.04em; text-transform: uppercase; opacity: 0.85; }
.countdown-label { text-align: center; font-size: 0.9rem; color: var(--ink-soft); margin-bottom: 22px; }

/* ============== FAQ ============== */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 10px; background: #fff; overflow: hidden; }
.faq-q {
  width: 100%; text-align: left; background: none; border: none; padding: 18px 22px; cursor: pointer;
  font-family: var(--font-body); font-weight: 600; font-size: 0.98rem; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-q::after { content: "+"; font-size: 1.3rem; color: var(--ink-faint); flex-shrink: 0; transition: transform 0.2s ease; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a p { margin: 0; padding: 0 22px 18px; color: var(--ink-soft); font-size: 0.92rem; line-height: 1.6; }

/* ============== STUDY PLANNER ============== */
.planner-toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 24px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.planner-toolbar input[type="text"] { flex: 1; min-width: 140px; padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); font-family: var(--font-body); background: #fff; color: var(--ink); }
.planner-toolbar input[type="color"] { width: 40px; height: 40px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); background: none; cursor: pointer; padding: 2px; }
.planner-toolbar select { padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: #fff; color: var(--ink); font-family: var(--font-body); }
.planner-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; }
@media (max-width: 900px) { .planner-grid { grid-template-columns: repeat(2, 1fr); } }
.planner-day { border: 1px solid var(--border); border-radius: var(--radius-sm); min-height: 220px; background: #fff; display: flex; flex-direction: column; }
.planner-day-head { font-family: var(--font-display); font-weight: 700; font-size: 0.85rem; padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: center; }
.planner-day-body { flex: 1; padding: 8px; display: flex; flex-direction: column; gap: 6px; }
.planner-block { border-radius: 6px; padding: 7px 9px; font-size: 0.78rem; color: #fff; font-weight: 600; position: relative; cursor: default; line-height: 1.3; }
.planner-block .del { position: absolute; top: 2px; right: 5px; cursor: pointer; opacity: 0.75; font-size: 0.85rem; }
.planner-block .del:hover { opacity: 1; }
.planner-empty { font-size: 0.72rem; color: var(--ink-faint); text-align: center; padding: 20px 6px; }
.legend { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.legend-chip { display: flex; align-items: center; gap: 6px; font-size: 0.8rem; color: var(--ink-soft); background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }