/* ═══════════════════════════════════════════════════════
   Formation SQL — Design System Partagé
   Dark Glassmorphism · Responsive · Animé
   ═══════════════════════════════════════════════════════ */

/* ── 1. Variables ───────────────────────────────────── */
:root {
  --bg:         #0a0e1a;
  --bg-2:       #0d1117;
  --bg-3:       #161b22;

  --glass:      rgba(22, 27, 34, 0.70);
  --glass-lite: rgba(255, 255, 255, 0.04);
  --glass-hover:rgba(255, 255, 255, 0.07);

  --border:       rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.20);

  --text:   #e6edf3;
  --muted:  #8b949e;
  --faint:  #484f58;

  --yellow: #f0c419;
  --blue:   #79c0ff;
  --green:  #3fb950;
  --purple: #d2a8ff;
  --red:    #f85149;
  --orange: #f78166;
  --accent: #3ECF8E;

  --radius:    12px;
  --radius-sm: 8px;
  --radius-lg: 16px;

  --blur:    blur(20px);
  --blur-sm: blur(12px);

  --shadow:    0 8px 32px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.30);

  --glow-y: 0 0 24px rgba(240, 196,  25, 0.18);
  --glow-b: 0 0 24px rgba(121, 192, 255, 0.15);
  --glow-p: 0 0 24px rgba(210, 168, 255, 0.15);
  --glow-a: 0 0 24px rgba(62, 207, 142, 0.18);

  --transition: all 0.22s ease;
}

/* ── 2. Reset ───────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; }

/* ── 3. Scrollbar ───────────────────────────────────── */
::-webkit-scrollbar               { width: 7px; height: 7px; }
::-webkit-scrollbar-track         { background: var(--bg-2); }
::-webkit-scrollbar-thumb         { background: rgba(255,255,255,0.10); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover   { background: rgba(255,255,255,0.20); }

/* ── 4. Sélection ───────────────────────────────────── */
::selection { background: rgba(62,207,142,0.22); color: var(--text); }

/* ── 5. Header partagé ──────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.88);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 1.6rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.site-header .header-title { font-size: 0.95rem; font-weight: 700; color: var(--accent); }
.site-header .header-sub   { font-size: 0.76rem; color: var(--muted); }
@media (max-width: 480px) { .site-header .header-sub { display: none; } }

/* ── 6. Bouton retour ───────────────────────────────── */
.back-link {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.79rem;
  padding: 0.42rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.back-link:hover { color: var(--text); background: rgba(255,255,255,0.08); border-color: var(--border-hover); }

/* ── 7. Boutons ─────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.38rem;
  font-size: 0.80rem; font-weight: 600; padding: 0.44rem 0.88rem;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  text-decoration: none; cursor: pointer; transition: var(--transition);
  white-space: nowrap; background: rgba(255,255,255,0.04); color: var(--muted); line-height: 1;
}
.btn:hover { background: rgba(255,255,255,0.09); border-color: var(--border-hover); color: var(--text); transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #0d1117; border-color: var(--accent); font-weight: 700; }
.btn-primary:hover { opacity: 0.88; box-shadow: var(--glow-a); transform: translateY(-2px); color: #0d1117; }

/* ── 8. Tags / Badges ───────────────────────────────── */
.tag {
  display: inline-block; background: rgba(62,207,142,0.07); color: var(--accent);
  font-size: 0.71rem; padding: 0.17rem 0.52rem; border-radius: 20px;
  font-family: 'Consolas', monospace; border: 1px solid rgba(62,207,142,0.14);
}
.badge { display: inline-block; font-size: 0.68rem; padding: 0.14rem 0.50rem; border-radius: 20px; font-weight: 700; }
.badge-sql   { background: rgba(0,117,143,0.12); color: #00758F; border: 1px solid rgba(0,117,143,0.25); }
.badge-pg    { background: rgba(51,103,145,0.12); color: #79c0ff; border: 1px solid rgba(51,103,145,0.25); }
.badge-mongo { background: rgba(77,179,61,0.10); color: #4DB33D; border: 1px solid rgba(77,179,61,0.20); }
.badge-warn  { background: rgba(248,81,73,0.09); color: var(--red); border: 1px solid rgba(248,81,73,0.20); }
.badge-tip   { background: rgba(63,185,80,0.09); color: var(--green); border: 1px solid rgba(63,185,80,0.20); }

/* ── 9. Barre de progression ────────────────────────── */
.progress-bar-outer { background: rgba(255,255,255,0.05); border-radius: 20px; height: 8px; overflow: hidden; border: 1px solid var(--border); }
.progress-bar-inner { background: linear-gradient(90deg, var(--accent), #10B981); height: 100%; border-radius: 20px; transition: width 0.65s cubic-bezier(0.4,0,0.2,1); box-shadow: var(--glow-a); }

/* ── 10. Cards glass ────────────────────────────────── */
.card {
  background: var(--glass); backdrop-filter: var(--blur-sm); -webkit-backdrop-filter: var(--blur-sm);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 1.4rem;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  display: flex; flex-direction: column;
}
.card:hover { border-color: rgba(62,207,142,0.32); transform: translateY(-3px); box-shadow: 0 16px 44px rgba(0,0,0,0.40), var(--glow-a); }
.card.completed { border-color: rgba(63,185,80,0.38); }

/* ── 11. Tables ─────────────────────────────────────── */
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th { background: rgba(255,255,255,0.03); border: 1px solid var(--border); padding: 0.58rem 0.88rem; text-align: left; color: var(--muted); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.5px; }
td { border: 1px solid var(--border); padding: 0.58rem 0.88rem; }
tr:nth-child(even) td { background: rgba(255,255,255,0.02); }
td code, th code { background: rgba(255,255,255,0.06); color: var(--blue); padding: 0.1rem 0.38rem; border-radius: 4px; font-family: 'Consolas', monospace; font-size: 0.79rem; }

/* ── 12. Code / Syntax ──────────────────────────────── */
pre { position: relative; background: rgba(7,11,20,0.85); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1rem 1.2rem; overflow-x: auto; font-size: 0.82rem; line-height: 1.65; }
code { font-family: 'Consolas', 'Monaco', monospace; }
pre code.hljs { background: transparent !important; padding: 0 !important; }

.copy-btn {
  position: absolute; top: 0.5rem; right: 0.5rem;
  background: rgba(255,255,255,0.06); border: 1px solid var(--border);
  border-radius: 5px; color: var(--muted); font-size: 0.82rem;
  padding: 0.22rem 0.52rem; cursor: pointer; transition: var(--transition); opacity: 0; line-height: 1;
}
pre:hover .copy-btn, .copy-btn:focus { opacity: 1; }
.copy-btn:hover  { background: rgba(255,255,255,0.14); color: var(--text); }
.copy-btn.copied { color: var(--green); border-color: rgba(63,185,80,0.5); opacity: 1; }

/* ── 13. Alertes ────────────────────────────────────── */
.tip  { background: rgba(62,207,142,0.07); border: 1px solid rgba(62,207,142,0.22); border-left: 3px solid var(--accent); border-radius: var(--radius-sm); padding: 0.85rem 1rem; font-size: 0.84rem; color: #a7f3d0; line-height: 1.55; }
.warn { background: rgba(248,81,73,0.07); border: 1px solid rgba(248,81,73,0.22); border-left: 3px solid var(--red); border-radius: var(--radius-sm); padding: 0.85rem 1rem; font-size: 0.84rem; color: #ffa198; line-height: 1.55; }

/* ── 14. Module badge ───────────────────────────────── */
.module-num { background: rgba(62,207,142,0.09); color: var(--accent); font-weight: 700; font-size: 0.77rem; padding: 0.2rem 0.58rem; border-radius: 6px; font-family: 'Consolas', monospace; border: 1px solid rgba(62,207,142,0.20); white-space: nowrap; }

/* ── 15. Section title ──────────────────────────────── */
.section-title { font-size: 1.22rem; font-weight: 700; margin-bottom: 1.2rem; padding-bottom: 0.7rem; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }

/* ── 16. Footer ─────────────────────────────────────── */
.site-footer { text-align: center; color: var(--faint); font-size: 0.77rem; padding: 2rem 1rem; border-top: 1px solid var(--border); margin-top: 3rem; }
.site-footer a { color: var(--muted); text-decoration: none; transition: color 0.2s; }
.site-footer a:hover { color: var(--text); }

/* ── 17. Animations ─────────────────────────────────── */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ── 18. Inputs ─────────────────────────────────────── */
input[type="checkbox"] { accent-color: var(--accent); width: 14px; height: 14px; cursor: pointer; }
input[type="text"], input[type="search"] { background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); padding: 0.65rem 1rem; font-size: 0.9rem; outline: none; transition: border-color 0.2s, box-shadow 0.2s; width: 100%; }
input:focus { border-color: rgba(62,207,142,0.50); box-shadow: 0 0 0 3px rgba(62,207,142,0.08); }

/* ── 19. Responsive ─────────────────────────────────── */
.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 1.2rem; }
@media (min-width: 768px) { .container { padding: 0 2rem; } }
@media (max-width: 767px) { .hide-mobile { display: none !important; } table { font-size: 0.79rem; } th, td { padding: 0.42rem 0.6rem; } .layout { flex-direction: column !important; } .modules-grid { grid-template-columns: 1fr !important; } }
@media (max-width: 640px) { body { font-size: 14px; } .site-header { padding: 0.5rem 0.9rem; } pre { font-size: 0.75rem; } table { display: block; overflow-x: auto; } }

/* ── 20. Bouton accueil ─────────────────────────────── */
.site-home-btn { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: var(--radius-sm); color: var(--muted); border: 1px solid var(--border); background: rgba(255,255,255,0.03); transition: all 0.2s ease; flex-shrink: 0; text-decoration: none; }
.site-home-btn:hover { color: var(--text); background: rgba(255,255,255,0.09); border-color: rgba(255,255,255,0.20); }