/* ================================================================
   BATOUCODE.OVH — NEON-TRON DESIGN SYSTEM
   Fichier global partagé par toutes les pages
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

/* ----------------------------------------------------------------
   1. VARIABLES CSS — Dark Mode (défaut) & Light Mode
   ---------------------------------------------------------------- */
:root {
  /* Couleurs */
  --bg-color:       #020617;
  --bg-surface:     rgba(255, 255, 255, 0.03);
  --bg-glass:       rgba(2, 6, 23, 0.80);
  --text-color:     #e2e8f0;
  --text-muted:     rgba(226, 232, 240, 0.38);

  /* Accents Neon */
  --primary:        #00f2ff;
  --primary-glow:   rgba(0, 242, 255, 0.25);
  --secondary:      #7000ff;
  --secondary-glow: rgba(112, 0, 255, 0.25);
  --accent-red:     #ff3366;
  --accent-red-glow:rgba(255, 51, 102, 0.25);

  /* Bordures */
  --border-color:   rgba(0, 242, 255, 0.18);
  --border-subtle:  rgba(255, 255, 255, 0.06);

  /* Ombres */
  --shadow-primary:   0 0 24px rgba(0, 242, 255, 0.30);
  --shadow-secondary: 0 0 24px rgba(112, 0, 255, 0.30);
  --shadow-red:       0 0 24px rgba(255, 51, 102, 0.30);

  /* Typographie */
  --font-main:  'Inter', 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-mono:  'Source Code Pro', 'Courier New', monospace;

  /* Géométrie */
  --radius:    8px;
  --radius-sm: 4px;
  --radius-lg: 16px;

  /* Transitions */
  --transition: 0.25s ease;
}

[data-theme="light"] {
  --bg-color:       #f8fafc;
  --bg-surface:     rgba(0, 0, 0, 0.025);
  --bg-glass:       rgba(248, 250, 252, 0.88);
  --text-color:     #0f172a;
  --text-muted:     rgba(15, 23, 42, 0.40);

  --primary:        #0ea5e9;
  --primary-glow:   rgba(14, 165, 233, 0.20);
  --secondary:      #6366f1;
  --secondary-glow: rgba(99, 102, 241, 0.20);
  --accent-red:     #ef4444;
  --accent-red-glow:rgba(239, 68, 68, 0.20);

  --border-color:   rgba(14, 165, 233, 0.22);
  --border-subtle:  rgba(0, 0, 0, 0.07);

  --shadow-primary:   0 0 24px rgba(14, 165, 233, 0.22);
  --shadow-secondary: 0 0 24px rgba(99, 102, 241, 0.22);
  --shadow-red:       0 0 24px rgba(239, 68, 68, 0.22);
}

/* ----------------------------------------------------------------
   2. RESET & BASE
   ---------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
}

html, body {
  width: 100%;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-main);
  min-height: 100vh;
  line-height: 1.6;
  transition: background-color var(--transition), color var(--transition);
  /* Espace pour la bottom nav mobile */
  padding-bottom: 100px;
}

@media (min-width: 768px) {
  body { padding-bottom: 60px; }
}

/* ----------------------------------------------------------------
   3. GRILLE TRON (effet décor en arrière-plan)
   ---------------------------------------------------------------- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 242, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 242, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

[data-theme="light"] body::before {
  background-image:
    linear-gradient(rgba(14, 165, 233, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 165, 233, 0.04) 1px, transparent 1px);
}

/* ----------------------------------------------------------------
   4. BOUTON TOGGLE THÈME (dans le header nav)
   ---------------------------------------------------------------- */
#theme-toggle {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--primary);
  font-size: 0.9rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: box-shadow var(--transition), transform var(--transition);
}

#theme-toggle:hover {
  box-shadow: var(--shadow-primary);
  transform: scale(1.08);
}

/* ================================================================
   5. NAVIGATION DESKTOP — Header sticky Neon-Tron
   ================================================================ */
.site-nav {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 200;
  background: var(--bg-glass);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Logo */
.nav-logo {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text-color);
  text-decoration: none;
  text-transform: lowercase;
  margin-right: auto;
  white-space: nowrap;
  transition: color var(--transition);
}

.nav-logo:hover { color: var(--primary); }
.nav-logo .accent { color: var(--primary); }

/* Liens nav desktop — masqués sur mobile */
.nav-links {
  display: none;
  align-items: center;
  gap: 2px;
  list-style: none;
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
}

.nav-links a {
  padding: 7px 13px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  white-space: nowrap;
  cursor: pointer;
  background: transparent;
  font-family: var(--font-main);
  transition: color var(--transition), border-color var(--transition),
              background var(--transition), box-shadow var(--transition);
}

.nav-links a:hover {
  color: var(--primary);
  border-color: var(--border-color);
  background: var(--bg-surface);
}

.nav-links a.active {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-glow);
  box-shadow: 0 0 12px var(--primary-glow);
}

/* Lien Perso (protection) */
.nav-links a.nav-perso {
  color: var(--accent-red);
  border-color: transparent;
}

.nav-links a.nav-perso:hover,
.nav-links a.nav-perso.active {
  border-color: var(--accent-red);
  background: var(--accent-red-glow);
  box-shadow: 0 0 12px var(--accent-red-glow);
  color: var(--accent-red);
}

/* ================================================================
   6. NAVIGATION MOBILE — Floating bottom pill (Magic Nav Premium)
   ================================================================ */
.mobile-nav {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: min(420px, 92vw);
  height: 66px;
  background: var(--bg-glass);
  backdrop-filter: saturate(180%) blur(22px);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: space-around;
  box-shadow:
    0 0 0 1px var(--border-subtle),
    0 20px 60px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  z-index: 300;
  overflow: visible;
}

/* Masquée sur desktop */
@media (min-width: 768px) {
  .mobile-nav { display: none; }
}

/* --- Bulle animée --- */
.mob-bubble {
  position: absolute;
  top: -18px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow:
    0 0 0 4px var(--bg-glass),
    0 6px 20px var(--primary-glow),
    0 0 36px var(--primary-glow);
  transition: left 0.45s cubic-bezier(0.68, -0.45, 0.27, 1.45);
  pointer-events: none;
  z-index: 3;
}

.mob-bubble::after {
  content: '';
  position: absolute;
  top: 5px;
  left: 7px;
  width: 16px;
  height: 9px;
  background: rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  filter: blur(3px);
}

/* --- Items --- */
.mob-item {
  position: relative;
  flex: 1;
  height: 66px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 4;
  user-select: none;
  border-radius: 16px;
  border: none;
  background: transparent;
  color: inherit;
  font-family: var(--font-main);
  transition: background 0.2s;
}

.mob-item:active { background: rgba(255, 255, 255, 0.04); }

/* Icône */
.mob-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.32);
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s;
  will-change: transform;
}

[data-theme="light"] .mob-ico {
  color: rgba(15, 23, 42, 0.32);
}

.mob-ico svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.mob-item.active .mob-ico {
  transform: translateY(-22px);
  color: #fff;
  filter: drop-shadow(0 2px 8px rgba(255, 255, 255, 0.4));
}

/* Label */
.mob-lbl {
  position: absolute;
  bottom: 6px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.07em;
  color: var(--primary);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s ease 0.06s, transform 0.3s ease 0.06s;
  white-space: nowrap;
  pointer-events: none;
  text-transform: uppercase;
}

.mob-item.active .mob-lbl {
  opacity: 1;
  transform: translateY(0);
}

/* Anneau pulsé sur l'item actif */
.mob-item.active::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -168%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 1.5px solid rgba(0, 242, 255, 0.25);
  pointer-events: none;
  animation: mob-ring-pulse 2s ease-out infinite;
}

[data-theme="light"] .mob-item.active::before {
  border-color: rgba(14, 165, 233, 0.25);
}

@keyframes mob-ring-pulse {
  0%   { transform: translate(-50%, -168%) scale(1);   opacity: 0.5; }
  100% { transform: translate(-50%, -168%) scale(1.6); opacity: 0; }
}

/* ----------------------------------------------------------------
   7. BOUTONS NEON "AURA"
   ---------------------------------------------------------------- */
.btn-neon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: box-shadow var(--transition), transform var(--transition), background var(--transition);
  position: relative;
}

.btn-neon:hover,
.btn-neon:focus-visible {
  box-shadow: var(--shadow-primary);
  transform: scale(1.02);
  background: var(--primary-glow);
  outline: none;
}

.btn-neon:active { transform: scale(0.98); }

.btn-neon.btn-secondary {
  color: var(--secondary);
  border-color: var(--secondary);
}

.btn-neon.btn-secondary:hover {
  box-shadow: var(--shadow-secondary);
  background: var(--secondary-glow);
}

.btn-neon.btn-danger {
  color: var(--accent-red);
  border-color: var(--accent-red);
}

.btn-neon.btn-danger:hover {
  box-shadow: var(--shadow-red);
  background: var(--accent-red-glow);
}

/* ----------------------------------------------------------------
   8. CARTES GLASSMORPHISM
   ---------------------------------------------------------------- */
.glass-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
  border-color: var(--primary);
  box-shadow: 0 0 32px var(--primary-glow);
}

/* ----------------------------------------------------------------
   9. LIENS NEON (soulignement du centre)
   ---------------------------------------------------------------- */
.neon-link {
  color: var(--primary);
  text-decoration: none;
  position: relative;
  display: inline-block;
}

.neon-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  right: 50%;
  height: 1px;
  background: var(--primary);
  transition: left var(--transition), right var(--transition);
}

.neon-link:hover::after {
  left: 0;
  right: 0;
}

/* ----------------------------------------------------------------
   10. TITRE DE SECTION AVEC LIGNE DÉCORATIVE
   ---------------------------------------------------------------- */
.section-title-neon {
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.section-title-neon::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--border-color), transparent);
}

/* ----------------------------------------------------------------
   11. SCROLLBAR PERSONNALISÉE
   ---------------------------------------------------------------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ----------------------------------------------------------------
   12. UTILITAIRES
   ---------------------------------------------------------------- */
.text-primary   { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-muted     { color: var(--text-muted); }
.relative       { position: relative; }
.z-1            { z-index: 1; }