/* =========================================================
   Portail de cours ESGI — Design system du hub
   (chaque matière garde son propre thème ; ceci stylise le portail)
   ========================================================= */

:root {
  --bg: #0e1016;
  --bg-soft: #151824;
  --bg-card: #181c2a;
  --bg-elev: #1f2435;
  --border: #2a3047;
  --text: #eef1fb;
  --text-soft: #a7b0d0;
  --muted: #727c9e;
  --primary: #6c8cff;
  --accent: #27e0b0;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.4);
  --radius: 16px;
  --maxw: 1140px;
}

[data-theme="light"] {
  --bg: #f4f6fc;
  --bg-soft: #ffffff;
  --bg-card: #ffffff;
  --bg-elev: #eef1ff;
  --border: #dbe1f5;
  --text: #141732;
  --text-soft: #3c4367;
  --muted: #6b7399;
  --shadow: 0 14px 40px rgba(40, 60, 140, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(1000px 500px at 85% -10%, var(--bg-soft), transparent),
    radial-gradient(900px 500px at 0% 0%, #1a1430 0%, transparent 60%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 16px;
  padding: 14px 28px;
  padding-left: max(28px, env(safe-area-inset-left));
  padding-right: max(28px, env(safe-area-inset-right));
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 800; letter-spacing: 0.3px; display: flex; align-items: center; gap: 12px; font-size: 18px; }
.brand .logo {
  width: 36px; height: 36px; display: grid; place-items: center;
  border-radius: 10px; font-weight: 800; color: #0b0e1c; font-size: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}
.brand small { display: block; font-size: 11px; color: var(--muted); font-weight: 500; letter-spacing: 0.5px; }
.spacer { flex: 1; }
.btn {
  cursor: pointer; border: 1px solid var(--border); background: var(--bg-card);
  color: var(--text); padding: 9px 15px; border-radius: 10px; font-size: 14px;
  transition: all 0.15s ease; font-family: inherit;
}
.btn:hover { border-color: var(--primary); transform: translateY(-1px); }

/* ---------- Hero ---------- */
.hero { max-width: var(--maxw); margin: 0 auto; padding: 56px 28px 20px; text-align: center; }
.hero .eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--accent); font-weight: 700; margin-bottom: 14px;
  padding: 4px 14px; border: 1px solid var(--border); border-radius: 999px; background: var(--bg-card);
}
.hero h1 {
  font-size: clamp(32px, 6vw, 56px); margin: 0 0 14px; line-height: 1.05;
  background: linear-gradient(120deg, var(--text) 20%, var(--primary) 60%, var(--accent));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p { color: var(--text-soft); max-width: 680px; margin: 0 auto; font-size: 19px; }

/* ---------- Stats ---------- */
.stats { display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; margin: 32px auto 0; max-width: var(--maxw); padding: 0 28px; }
.stat { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 16px 26px; text-align: center; min-width: 130px; }
.stat .num { font-size: 30px; font-weight: 800; color: var(--primary); }
.stat .lbl { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; }

/* ---------- Section ---------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: 44px 28px; }
.section h2 { font-size: 26px; margin: 0 0 6px; }
.section .sub { color: var(--muted); margin: 0 0 24px; }

/* ---------- Subject grid ---------- */
.subjects { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; }
.subject {
  position: relative; display: flex; flex-direction: column;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0; overflow: hidden;
  box-shadow: var(--shadow); transition: transform 0.18s ease, border-color 0.18s ease;
}
.subject:hover { transform: translateY(-5px); border-color: var(--sc, var(--primary)); text-decoration: none; }
.subject-main { display: flex; flex-direction: column; flex: 1; color: inherit; text-decoration: none; }
.subject-main:hover { text-decoration: none; }
.subject .banner {
  height: 92px; display: flex; align-items: center; gap: 14px; padding: 0 22px;
  background: linear-gradient(135deg, var(--sc, var(--primary)), color-mix(in srgb, var(--sc, var(--primary)) 40%, #000));
}
.subject .banner .emoji {
  font-size: 34px; width: 56px; height: 56px; display: grid; place-items: center;
  background: rgba(255,255,255,0.15); border-radius: 14px; backdrop-filter: blur(4px);
}
.subject .banner .bt { color: #fff; }
.subject .banner .bt .code { font-size: 12px; opacity: 0.85; letter-spacing: 1px; text-transform: uppercase; }
.subject .banner .bt .name { font-size: 21px; font-weight: 800; }
.subject .body { padding: 18px 22px 20px; flex: 1; display: flex; flex-direction: column; }
.subject .body p { color: var(--text-soft); font-size: 15px; margin: 0 0 14px; flex: 1; }
.subject .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.subject .tag { font-size: 12px; padding: 3px 10px; border-radius: 999px; background: var(--bg-elev); color: var(--text-soft); border: 1px solid var(--border); }
.subject .foot { display: flex; align-items: center; justify-content: space-between; }
.subject .status { font-size: 13px; font-weight: 600; }
.subject .status.ready { color: var(--accent); }
.subject .status.soon { color: var(--muted); }
.subject .status.wip { color: #ffb454; }
.subject .go { font-size: 14px; color: var(--sc, var(--primary)); font-weight: 700; }
.subject-extras { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 22px 18px; margin-top: -4px; }
.subject-extras .tag.extra { background: var(--bg-elev); font-weight: 600; transition: background 0.15s ease; }
.subject-extras .tag.extra:hover { background: color-mix(in srgb, var(--sc, var(--primary)) 16%, var(--bg-elev)); text-decoration: none; }
.subject.locked { opacity: 0.58; cursor: default; }
.subject.locked:hover { transform: none; }
.subject .ribbon {
  position: absolute; top: 14px; right: -34px; transform: rotate(45deg);
  background: var(--accent); color: #05231b; font-size: 11px; font-weight: 800;
  padding: 4px 42px; letter-spacing: 1px;
}

/* ---------- Callout ---------- */
.callout { border-left: 4px solid var(--primary); background: var(--bg-elev); border-radius: 0 12px 12px 0; padding: 16px 20px; margin: 18px 0; }
.callout .label { font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 4px; display: block; color: var(--primary); }
.callout p { margin: 4px 0; color: var(--text-soft); }

/* ---------- Footer ---------- */
.footer { text-align: center; color: var(--muted); font-size: 14px; padding: 48px 20px; border-top: 1px solid var(--border); margin-top: 30px; }
.footer a { color: var(--text-soft); }

/* ---------- Tableau de bord de progression ---------- */
.resume { display: flex; align-items: center; gap: 14px; margin-bottom: 16px;
  background: linear-gradient(120deg, color-mix(in srgb, var(--primary) 20%, var(--bg-card)), var(--bg-card));
  border: 1px solid var(--primary); border-radius: 14px; padding: 14px 18px; box-shadow: var(--shadow); }
.resume:hover { text-decoration: none; transform: translateY(-2px); transition: transform 0.15s ease; }
.resume-ic { font-size: 22px; }
.resume-txt { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.resume-txt b { color: var(--text); font-size: 15px; }
.resume-txt span { color: var(--text-soft); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.resume-go { color: var(--primary); font-weight: 700; font-size: 14px; white-space: nowrap; }
.dash { display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: center;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 24px; box-shadow: var(--shadow); }
.dash-ring { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.ring { --p: 0; width: 132px; height: 132px; border-radius: 50%;
  background: conic-gradient(var(--accent) calc(var(--p) * 1%), var(--bg-elev) 0);
  display: grid; place-items: center; transition: background 0.6s ease; }
.ring-in { width: 102px; height: 102px; border-radius: 50%; background: var(--bg-card);
  display: grid; place-items: center; text-align: center; }
.ring-pct { font-size: 32px; font-weight: 800; color: var(--text); line-height: 1; }
.ring-pct small { font-size: 15px; color: var(--muted); }
.ring-lbl { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin-top: 2px; }
.dash-reset { font-size: 12px; padding: 6px 12px; }
.dash-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.dash-actions .btn { font-size: 12px; padding: 6px 12px; }
.streak { font-size: 13px; font-weight: 700; color: #ffb454;
  background: color-mix(in srgb, #ffb454 16%, transparent); border: 1px solid #ffb454;
  border-radius: 999px; padding: 4px 12px; }
.favs { margin-top: 16px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow); }
.favs h3 { margin: 0 0 10px; font-size: 16px; }
.fav-list { display: flex; flex-direction: column; gap: 8px; }
.fav-item { display: flex; align-items: center; gap: 10px; }
.fav-item a { flex: 1; min-width: 0; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fav-item a:hover { color: var(--primary); }
.fav-del { cursor: pointer; border: 1px solid var(--border); background: var(--bg-elev);
  color: var(--muted); border-radius: 8px; width: 28px; height: 28px; flex: 0 0 28px; font-size: 13px; }
.fav-del:hover { border-color: #ff6b81; color: #ff9aa8; }
.dash-list { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.dash-row { display: flex; align-items: center; gap: 14px; padding: 8px 10px; border-radius: 12px;
  border: 1px solid transparent; }
.dash-row:hover { background: var(--bg-elev); border-color: var(--border); text-decoration: none; }
.dr-emoji { width: 40px; height: 40px; flex: 0 0 40px; display: grid; place-items: center;
  border-radius: 11px; font-size: 20px; }
.dr-main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.dr-top { display: flex; justify-content: space-between; gap: 10px; font-size: 14px; color: var(--text); }
.dr-top b { font-weight: 700; }
.dr-num { color: var(--muted); font-size: 12px; white-space: nowrap; }
.dr-pct { font-weight: 800; font-size: 15px; min-width: 42px; text-align: right; }
.dash-hint { color: var(--muted); font-size: 13px; margin: 4px 2px 0; }
.pbar { height: 8px; border-radius: 999px; background: var(--bg-elev); overflow: hidden; }
.pbar > span { display: block; height: 100%; border-radius: 999px; transition: width 0.6s ease; }
.card-progress { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.card-progress .pbar { flex: 1; }
.card-progress .cp-lbl { font-size: 12px; color: var(--muted); white-space: nowrap; }

/* ---------- Objectif hebdomadaire ---------- */
.goal-card { margin-top: 16px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow); }
.goal-card.reached { border-color: var(--accent); }
.goal-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.goal-head b { font-size: 16px; }
.goal-set { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.goal-set select { background: var(--bg-elev); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 4px 8px; font-family: inherit; font-size: 13px; cursor: pointer; }
.goal-bar { margin: 4px 0 10px; }
.goal-info { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.goal-num { font-weight: 700; color: var(--text); font-size: 14px; white-space: nowrap; }
.goal-msg { color: var(--text-soft); font-size: 13px; flex: 1; text-align: right; }
@media (max-width: 560px) { .goal-msg { text-align: left; } }

/* ---------- Heatmap d'activité ---------- */
.heatmap-card { margin-top: 16px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow); }
.hm-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.hm-head b { font-size: 16px; }
.hm-sub { color: var(--muted); font-size: 13px; }
.hm-grid { display: flex; gap: 3px; overflow-x: auto; padding-bottom: 4px; }
.hm-col { display: flex; flex-direction: column; gap: 3px; }
.hm-cell { width: 13px; height: 13px; border-radius: 3px; background: var(--bg-elev); flex: 0 0 auto; }
.hm-cell.l1 { background: color-mix(in srgb, var(--primary) 32%, var(--bg-elev)); }
.hm-cell.l2 { background: color-mix(in srgb, var(--primary) 55%, var(--bg-elev)); }
.hm-cell.l3 { background: color-mix(in srgb, var(--primary) 78%, var(--bg-elev)); }
.hm-cell.l4 { background: var(--primary); }
.hm-cell.fut { opacity: 0.35; }
.hm-legend { display: flex; align-items: center; gap: 4px; justify-content: flex-end; margin-top: 10px; font-size: 12px; color: var(--muted); }
.hm-legend .hm-cell { width: 11px; height: 11px; }

/* ---------- Responsive ---------- */
/* ---------- Recherche globale ---------- */
.search-wrap { max-width: 680px; margin: 22px auto 0; padding: 0 28px; position: relative; z-index: 40; }
.search-box { display: flex; align-items: center; gap: 10px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: 14px; padding: 4px 14px;
  box-shadow: var(--shadow); transition: border-color 0.15s ease; }
.search-box:focus-within { border-color: var(--primary); }
.search-ic { font-size: 18px; opacity: 0.8; }
.search-box input { flex: 1; background: none; border: none; outline: none; color: var(--text);
  font-size: 16px; font-family: inherit; padding: 12px 0; min-width: 0; }
.search-box input::placeholder { color: var(--muted); }
.search-kbd { font-size: 12px; color: var(--muted); border: 1px solid var(--border);
  border-radius: 6px; padding: 2px 8px; background: var(--bg-elev); font-family: inherit; }
/* Groupe de raccourcis + bulle d'aide */
.search-kbds { position: relative; display: flex; align-items: center; gap: 5px; cursor: help; outline: none; }
.search-tip { position: absolute; right: 0; top: calc(100% + 10px); z-index: 60; width: 300px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: var(--shadow); padding: 13px 15px; opacity: 0; visibility: hidden;
  transform: translateY(-4px); transition: opacity 0.15s ease, transform 0.15s ease; text-align: left; }
.search-kbds:hover .search-tip, .search-kbds:focus-within .search-tip,
.search-kbds:focus .search-tip { opacity: 1; visibility: visible; transform: translateY(0); }
.search-tip::before { content: ""; position: absolute; right: 18px; top: -6px; width: 11px; height: 11px;
  background: var(--bg-card); border-left: 1px solid var(--border); border-top: 1px solid var(--border);
  transform: rotate(45deg); }
.search-tip b { color: var(--text); font-size: 14px; }
.search-tip p { color: var(--text-soft); font-size: 13px; margin: 5px 0 9px; }
.search-tip ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.search-tip li { color: var(--text-soft); font-size: 13px; display: flex; align-items: center; gap: 7px; }
.search-tip kbd { font-size: 11px; color: var(--text); border: 1px solid var(--border);
  border-radius: 5px; padding: 1px 6px; background: var(--bg-elev); font-family: inherit; }
.search-results { position: absolute; left: 28px; right: 28px; top: calc(100% + 8px);
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: var(--shadow); overflow: hidden; max-height: 60vh; overflow-y: auto; }
.sr-item { display: flex; align-items: center; gap: 12px; padding: 11px 14px;
  border-bottom: 1px solid var(--border); }
.sr-item:last-of-type { border-bottom: none; }
.sr-item:hover, .sr-item.active { background: var(--bg-elev); text-decoration: none; }
.sr-emoji { width: 34px; height: 34px; flex: 0 0 34px; display: grid; place-items: center;
  border-radius: 9px; font-size: 17px; }
.sr-txt { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.sr-t { color: var(--text); font-weight: 600; font-size: 15px; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; }
.sr-meta { color: var(--muted); font-size: 12px; }
.sr-go { color: var(--muted); font-size: 13px; }
.sr-foot, .sr-empty { padding: 10px 14px; color: var(--muted); font-size: 12.5px; text-align: center; }
.sr-empty { padding: 20px 14px; }

/* ================= RESPONSIVE (mobile-first tuning) ================= */
/* Tablettes */
@media (max-width: 820px) {
  .section, .hero, .stats { padding-left: 20px; padding-right: 20px; }
  .subjects { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
}

/* Téléphones (Samsung S26 Ultra ~412px portrait et équivalents) */
@media (max-width: 560px) {
  html, body { overflow-x: hidden; }
  .topbar { padding: 10px 14px; gap: 10px; flex-wrap: wrap; }
  .brand { font-size: 16px; gap: 9px; }
  .brand .logo { width: 32px; height: 32px; font-size: 17px; }
  .brand small { font-size: 10px; }
  .btn { padding: 9px 12px; font-size: 13.5px; min-height: 42px; display: inline-flex; align-items: center; }

  .hero { padding: 30px 16px 12px; }
  .hero .eyebrow { font-size: 11px; letter-spacing: 1px; }
  .hero p { font-size: 16px; }

  .stats { gap: 10px; padding: 0 16px; }
  .stat { min-width: 0; flex: 1 1 40%; padding: 12px 10px; }
  .stat .num { font-size: 24px; }
  .stat .lbl { font-size: 11px; }

  .section { padding: 30px 16px; }
  .section h2 { font-size: 22px; }
  .subjects { grid-template-columns: 1fr; gap: 14px; }
  .subject .banner { height: 80px; padding: 0 16px; }
  .subject .banner .emoji { width: 48px; height: 48px; font-size: 28px; }
  .subject .banner .bt .name { font-size: 19px; }
  .subject .body { padding: 16px 16px 18px; }
  .subject .ribbon { font-size: 10px; padding: 3px 38px; }

  .callout { padding: 14px 16px; }
  .footer { padding: 36px 16px; }

  .dash { grid-template-columns: 1fr; gap: 16px; padding: 18px 16px; }

  .search-wrap { padding: 0 16px; margin-top: 16px; }
  .search-results { left: 16px; right: 16px; }
  .search-box input { font-size: 16px; padding: 11px 0; }
  .search-kbds { display: none; }

  .resume { flex-wrap: wrap; gap: 8px 12px; }
  .resume-go { flex-basis: 100%; }
  .dash-ring { flex-direction: row; justify-content: center; gap: 18px; }
  .ring { width: 110px; height: 110px; }
  .ring-in { width: 86px; height: 86px; }
  .ring-pct { font-size: 26px; }
  .dr-emoji { width: 36px; height: 36px; flex-basis: 36px; font-size: 18px; }
  .dr-top { flex-direction: column; gap: 2px; }
}

/* Très petits écrans / edge display */
@media (max-width: 380px) {
  .stat { flex: 1 1 100%; }
  .hero h1 { font-size: 28px; }
}

/* ================= IMPRESSION / EXPORT PDF ================= */
@media print {
  body { background: #fff !important; color: #000 !important; }
  .topbar, .footer, .btn, #theme-toggle, .dash-reset, .hero .eyebrow { display: none !important; }
  .section, .hero, .stats, .rm { padding: 0 !important; margin: 8px 0 !important; max-width: 100% !important; }
  .subject, .panel, .dash, .callout, .stat { box-shadow: none !important; break-inside: avoid; }
  a { color: #000 !important; text-decoration: none !important; }
  .hero h1 { -webkit-text-fill-color: #000 !important; color: #000 !important; }
}