/* style.css — Design system Clair Ressenti v5.2
   "L'oracle et le laboratoire" — thème clair, magie dorée au scroll.
   Inspiré Awwwards 2025-2026 : materialization reveal, particle sparkles, mist dissipation. */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Base — warm off-white / blanc cassé */
  --bg: #f5f1e8;
  --bg-deep: #efe9dc;
  --bg-card: rgba(255, 252, 245, 0.65);
  --bg-soft: #ede7d8;
  --bg-elevated: #fffdf8;
  --bg-glass: rgba(255, 250, 240, 0.5);
  --bg-glass-hover: rgba(255, 250, 240, 0.75);
  --bg-gold: rgba(232, 184, 124, 0.06);
  --bg-gold-hover: rgba(232, 184, 124, 0.12);

  /* Primary — violet, spiritual */
  --primary: #7b6ad6;
  --primary-dark: #6555c4;
  --primary-light: #9d8ef0;
  --primary-glow: rgba(123, 106, 214, 0.12);
  --primary-glow-strong: rgba(123, 106, 214, 0.25);

  /* Accent gold — warmth, frames, magic */
  --gold: #c9a55c;
  --gold-light: #e8c884;
  --gold-bright: #f5d896;
  --gold-soft: rgba(201, 165, 92, 0.08);
  --gold-glow: rgba(201, 165, 92, 0.15);
  --gold-glow-strong: rgba(201, 165, 92, 0.3);
  --gold-border: rgba(201, 165, 92, 0.25);
  --gold-border-strong: rgba(201, 165, 92, 0.4);

  /* Accent cyan — data, scientific */
  --cyan: #3aaFA9;
  --cyan-soft: rgba(58, 175, 169, 0.06);
  --cyan-glow: rgba(58, 175, 169, 0.12);

  /* Text */
  --text: #2a2535;
  --text-soft: #6b6580;
  --text-faded: #6b6580;

  /* Status */
  --success: #3aaFA9;
  --success-bg: rgba(58, 175, 169, 0.08);
  --danger: #d65a7a;
  --danger-bg: rgba(214, 90, 122, 0.06);
  --gray: #d5cfc0;
  --gold-badge: #c9a55c;

  /* Borders */
  --border: rgba(201, 165, 92, 0.15);
  --border-strong: rgba(201, 165, 92, 0.3);
  --border-glass: rgba(201, 165, 92, 0.12);
  --border-violet: rgba(123, 106, 214, 0.15);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(80, 60, 20, 0.04);
  --shadow: 0 8px 28px rgba(80, 60, 20, 0.06);
  --shadow-lg: 0 16px 48px rgba(80, 60, 20, 0.08);
  --shadow-glow: 0 0 40px rgba(201, 165, 92, 0.06);
  --shadow-gold-glow: 0 0 60px rgba(201, 165, 92, 0.12);

  /* Radius */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Fonts */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-magic: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.3s var(--ease);
  --max-width: 1120px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  overflow-x: hidden;
}

/* Noise texture overlay for warmth */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: 2.4rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.1rem; }

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-light); }

.mono { font-family: var(--font-mono); }

/* ═══════════════ ANIMATIONS ═══════════════ */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes breathe {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.08); }
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
@keyframes growBar {
  from { height: 0; }
}
@keyframes orbFloat {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.1); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
  100% { transform: translate(0, 0) scale(1); }
}
@keyframes shimmerGold {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes sparkleFloat {
  0% { opacity: 0; transform: translateY(0) scale(0) rotate(0deg); }
  15% { opacity: 1; transform: translateY(-12px) scale(1.2) rotate(45deg); }
  50% { opacity: 0.8; transform: translateY(-30px) scale(0.8) rotate(120deg); }
  100% { opacity: 0; transform: translateY(-70px) scale(0.2) rotate(200deg); }
}
@keyframes sparkleFloatSideways {
  0% { opacity: 0; transform: translate(0, 0) scale(0); }
  15% { opacity: 1; transform: translate(8px, -10px) scale(1.3); }
  50% { opacity: 0.7; transform: translate(-12px, -35px) scale(0.7); }
  100% { opacity: 0; transform: translate(6px, -60px) scale(0.2); }
}
@keyframes mistFade {
  0% { opacity: 1; transform: scale(1); }
  30% { opacity: 0.7; transform: scale(1.3); }
  100% { opacity: 0; transform: scale(1.8); }
}
@keyframes mistSwirl {
  0% { opacity: 0.9; transform: scale(1) rotate(0deg); }
  50% { opacity: 0.5; transform: scale(1.4) rotate(8deg); }
  100% { opacity: 0; transform: scale(1.8) rotate(15deg); }
}
@keyframes goldGlowPulse {
  0% { box-shadow: 0 0 0 rgba(201, 165, 92, 0); }
  30% { box-shadow: 0 0 60px rgba(201, 165, 92, 0.35), 0 0 100px rgba(201, 165, 92, 0.1); }
  100% { box-shadow: 0 0 0 rgba(201, 165, 92, 0); }
}
@keyframes textShimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* ═══════════════ MAGIC SCROLL REVEAL ═══════════════ */

/* Base reveal — materialization from mist */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  filter: blur(20px);
  transition:
    opacity 1.4s var(--ease-magic),
    transform 1.4s var(--ease-magic),
    filter 1.4s var(--ease-magic);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Card reveal — materializes with scale + blur */
.reveal-card {
  opacity: 0;
  transform: translateY(40px) scale(0.88);
  filter: blur(18px);
  transition:
    opacity 1.2s var(--ease-magic),
    transform 1.2s var(--ease-magic),
    filter 1.2s var(--ease-magic);
}
.reveal-card.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
  animation: goldGlowPulse 2s var(--ease-out) 0.4s forwards;
}

/* Heading reveal — shimmer text on appear */
.reveal-heading {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(14px);
  transition:
    opacity 1.3s var(--ease-magic),
    transform 1.3s var(--ease-magic),
    filter 1.3s var(--ease-magic);
}
.reveal-heading.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}
.reveal-heading.visible .shimmer-text {
  animation: textShimmer 2.5s var(--ease-out) 0.4s forwards;
}

/* Shimmer text overlay — golden light passes over text */
.shimmer-text {
  background: linear-gradient(
    90deg,
    var(--text) 0%,
    var(--text) 40%,
    var(--gold-bright) 50%,
    var(--text) 60%,
    var(--text) 100%
  );
  background-size: 200% 100%;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  padding-right: 0.15em;
  background-position: -200% center;
}

/* Stagger delays */
.stagger-1 { transition-delay: 0.15s; }
.stagger-2 { transition-delay: 0.35s; }
.stagger-3 { transition-delay: 0.55s; }
.stagger-4 { transition-delay: 0.75s; }

/* Mist overlay — visible BEFORE reveal, dissipates on reveal */
.mist-overlay {
  position: absolute;
  inset: -30px;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(201, 165, 92, 0.25) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 60%, rgba(245, 216, 150, 0.2) 0%, transparent 50%),
    radial-gradient(ellipse at center, rgba(201, 165, 92, 0.12) 0%, transparent 70%);
  border-radius: var(--radius-lg);
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.3s var(--ease-out);
  z-index: 5;
  animation: mistSwirl 6s ease-in-out infinite;
}
.reveal-card.visible .mist-overlay {
  animation: mistSwirl 2s var(--ease-out) forwards;
  opacity: 0;
}

/* Sparkle particles container */
.sparkle-container {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: visible;
  z-index: 10;
}
.sparkle {
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold-bright);
  box-shadow:
    0 0 12px var(--gold-glow-strong),
    0 0 6px var(--gold-bright),
    0 0 20px rgba(245, 216, 150, 0.3);
  pointer-events: none;
}
.sparkle.float-up {
  animation: sparkleFloat 1.8s var(--ease-out) forwards;
}
.sparkle.float-side {
  animation: sparkleFloatSideways 1.8s var(--ease-out) forwards;
}

/* Scroll progress bar */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--gold), var(--cyan));
  z-index: 999;
  width: 0%;
  transition: width 0.1s;
  box-shadow: 0 0 12px var(--gold-glow-strong);
}

/* Legacy animation classes */
.fade-in { animation: fadeIn 0.3s ease forwards; }
.fade-in-up { animation: fadeInUp 0.5s var(--ease-out) forwards; }
.delay-1 { animation-delay: 0.05s; opacity: 0; }
.delay-2 { animation-delay: 0.12s; opacity: 0; }
.delay-3 { animation-delay: 0.2s; opacity: 0; }
.delay-4 { animation-delay: 0.28s; opacity: 0; }

/* ═══════════════ NAVBAR ═══════════════ */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 241, 232, 0.6);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition);
}
.navbar.scrolled {
  background: rgba(245, 241, 232, 0.88);
  border-bottom-color: var(--border-strong);
  box-shadow: 0 4px 24px rgba(80, 60, 20, 0.05);
}

.navbar .logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: -0.01em;
}
.navbar .logo .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 12px var(--gold-glow);
  animation: pulse 3s ease-in-out infinite;
}
.navbar .nav-links { display: flex; gap: 1.25rem; align-items: center; }
.navbar .nav-links a {
  color: var(--text-soft);
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}
.navbar .nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width 0.3s var(--ease-out);
}
.navbar .nav-links a:hover { color: var(--text); }
.navbar .nav-links a:hover::after { width: 100%; }
.navbar .nav-links a.active { color: var(--primary); }

/* ═══════════════ CONTAINERS ═══════════════ */

.container { max-width: var(--max-width); margin: 0 auto; padding: 2rem 1.5rem; position: relative; z-index: 1; }
.container-center { max-width: 560px; margin: 0 auto; padding: 2rem 1.5rem; text-align: center; }

/* ═══════════════ HERO ═══════════════ */

.hero {
  position: relative;
  padding: 6rem 1.5rem 5rem;
  text-align: center;
  overflow: hidden;
}

/* Animated gradient mesh — warm gold/violet on cream */
.hero-mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, var(--primary-glow), transparent 70%),
    radial-gradient(ellipse 40% 30% at 20% 60%, var(--gold-glow), transparent 60%),
    radial-gradient(ellipse 40% 30% at 80% 40%, var(--cyan-glow), transparent 60%);
  animation: breathe 8s ease-in-out infinite;
}

/* Floating orbs — warm tones */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  transition: transform 0.6s var(--ease-out);
}
.hero-orb-1 {
  width: 350px; height: 350px;
  background: var(--gold);
  opacity: 0.1;
  top: 10%; left: 8%;
  animation: orbFloat 14s ease-in-out infinite;
}
.hero-orb-2 {
  width: 250px; height: 250px;
  background: var(--primary);
  opacity: 0.07;
  top: 40%; right: 10%;
  animation: orbFloat 17s ease-in-out infinite reverse;
}
.hero-orb-3 {
  width: 300px; height: 300px;
  background: var(--cyan);
  opacity: 0.05;
  bottom: 5%; left: 25%;
  animation: orbFloat 20s ease-in-out infinite;
}

/* Soft grid */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201, 165, 92, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 165, 92, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  z-index: 0;
}

.hero-content { position: relative; z-index: 1; max-width: 680px; margin: 0 auto; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: 0.7rem;
  color: var(--text-soft);
  font-weight: 500;
  margin-bottom: 1.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  animation: fadeInUp 0.6s var(--ease-out) forwards;
  opacity: 0;
}
.hero-badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold-glow);
  animation: pulse 2.5s ease-in-out infinite;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.03em;
  line-height: 1.15;
  animation: fadeInUp 0.7s var(--ease-out) 0.1s forwards;
  opacity: 0;
}
.hero h1 .italic {
  font-style: italic;
  color: var(--primary);
  font-weight: 400;
}

.hero .subtitle {
  font-size: 1.1rem;
  color: var(--text-soft);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.65;
  animation: fadeInUp 0.7s var(--ease-out) 0.2s forwards;
  opacity: 0;
}

.hero .btn-group {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.7s var(--ease-out) 0.3s forwards;
  opacity: 0;
}

/* Hero stats */
.hero-stats {
  display: flex;
  gap: 2.5rem;
  justify-content: center;
  margin-top: 3.5rem;
  animation: fadeInUp 0.7s var(--ease-out) 0.4s forwards;
  opacity: 0;
}
.hero-stat {
  text-align: center;
  position: relative;
}
.hero-stat::after {
  content: '';
  position: absolute;
  top: 0; right: -1.25rem;
  width: 1px; height: 100%;
  background: var(--border);
}
.hero-stat:last-child::after { display: none; }
.hero-stat .val {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--primary);
  text-shadow: 0 0 20px var(--primary-glow);
}
.hero-stat .label {
  font-size: 0.7rem;
  color: var(--text-faded);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.2rem;
  font-family: var(--font-mono);
}

/* ═══════════════ SECTIONS ═══════════════ */

.section { padding: 5rem 1.5rem; max-width: var(--max-width); margin: 0 auto; position: relative; z-index: 1; }
.section-title { margin-bottom: 3rem; }
.section-title .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.6rem;
}
.section-title h2 {
  font-family: var(--font-display);
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text);
}
.section-title p { color: var(--text-soft); font-size: 0.95rem; max-width: 500px; }

/* ═══════════════ GOLD-TINTED GLASS CARDS ═══════════════ */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.card {
  background: linear-gradient(135deg, var(--bg-gold), var(--bg-glass));
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 1px solid var(--gold-border);
  transition: all 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}
/* Gold shimmer sweep — triggers on reveal AND hover */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(245, 216, 150, 0.15) 50%, transparent 70%);
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-border-strong), transparent);
  opacity: 0.5;
}
.card:hover {
  border-color: var(--gold-border-strong);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), 0 0 30px var(--gold-glow);
}
.card:hover::before {
  opacity: 1;
  animation: shimmerGold 1.5s ease-in-out;
}

.card .card-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  background: var(--bg-gold);
  border: 1px solid var(--gold-border);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.2rem;
  transition: all 0.4s var(--ease-out);
}
.card:hover .card-icon {
  background: var(--gold-glow);
  border-color: var(--gold);
  transform: scale(1.1) rotate(-3deg);
  box-shadow: 0 4px 16px var(--gold-glow);
}
.card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.card p { color: var(--text-soft); font-size: 0.875rem; line-height: 1.55; }
.card .card-number {
  position: absolute;
  top: 1rem; right: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  opacity: 0.4;
}

/* ═══════════════ BUTTONS ═══════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  font-size: 0.875rem;
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text);
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gold-soft), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.btn:hover { border-color: var(--gold); transform: translateY(-1px); }
.btn:hover::before { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 20px var(--primary-glow-strong);
}
.btn-primary:hover {
  box-shadow: 0 8px 30px var(--primary-glow-strong);
  transform: translateY(-2px);
  color: white;
}
.btn-primary::before { display: none; }

.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #2a2535;
  border-color: transparent;
  box-shadow: 0 4px 20px var(--gold-glow);
}
.btn-gold:hover { box-shadow: 0 8px 30px var(--gold-glow); color: #2a2535; }
.btn-gold::before { display: none; }

.btn-large { padding: 0.85rem 1.85rem; font-size: 0.95rem; }
.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.8rem; }

/* ═══════════════ QCM ═══════════════ */

.qcm-n1-container, .qcm-n2-container { max-width: 760px; margin: 0 auto; padding: 2rem 1.5rem; position: relative; z-index: 1; }
.qcm-image-wrapper, .qcm-image-zoom {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-soft);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gold-border);
}
.qcm-image-wrapper img, .qcm-image-zoom img {
  width: 100%; height: 100%; object-fit: cover;
}
.qcm-subliminal-word {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3.5rem;
  font-weight: 800;
  color: white;
  opacity: 0.015;
  pointer-events: none;
  transition: opacity 3s ease;
  white-space: nowrap;
  z-index: 2;
  letter-spacing: -0.02em;
}
.qcm-subliminal-word.revealed {
  opacity: 1;
  text-shadow: 0 2px 30px rgba(0,0,0,0.6);
}
.qcm-question {
  text-align: center;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  margin: 1.5rem 0 1rem;
  color: var(--text);
}
.qcm-choices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
  margin-top: 1rem;
}
.qcm-choice {
  padding: 1rem 1rem;
  background: var(--bg-gold);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gold-border-strong);
  border-radius: var(--radius);
  cursor: pointer;
  text-align: center;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.3s var(--ease-out);
  color: var(--text);
}
.qcm-choice:hover {
  border-color: var(--gold);
  background: var(--bg-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--gold-glow);
}
.qcm-choice.disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}
.qcm-choice.correct {
  background: var(--success-bg);
  border-color: var(--success);
  color: var(--success);
  box-shadow: 0 0 20px var(--cyan-glow);
}
.qcm-choice.wrong {
  background: var(--danger-bg);
  border-color: var(--danger);
}
.qcm-feedback {
  text-align: center;
  margin: 1rem 0;
  font-size: 0.95rem;
  font-weight: 600;
  min-height: 1.5rem;
}
.qcm-feedback.success { color: var(--success); }
.qcm-feedback.error { color: var(--danger); }
.qcm-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  color: var(--text-soft);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}
.qcm-n2 .qcm-choices { grid-template-columns: 1fr; }
@media (min-width: 768px) {
  .qcm-n2 .qcm-choices { grid-template-columns: repeat(5, 1fr); }
}

/* ═══════════════ DASHBOARD ═══════════════ */

.dashboard-tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.dashboard-tab {
  padding: 0.6rem 1rem;
  background: none;
  border: none;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-soft);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition);
}
.dashboard-tab:hover { color: var(--text); }
.dashboard-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.dashboard-content { display: none; animation: fadeIn 0.3s ease; }
.dashboard-content.active { display: block; }

/* ═══════════════ STATS ═══════════════ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: linear-gradient(135deg, var(--bg-gold), var(--bg-glass));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  border: 1px solid var(--gold-border);
  transition: all 0.3s var(--ease-out);
}
.stat-card:hover {
  border-color: var(--gold-border-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow), 0 0 20px var(--gold-glow);
}
.stat-card .stat-value {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--primary);
  text-shadow: 0 0 16px var(--primary-glow);
}
.stat-card .stat-label {
  color: var(--text-faded);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.3rem;
  font-family: var(--font-mono);
}

/* Chart bars */
.chart-container {
  position: relative;
  display: flex;
  gap: 2px;
  align-items: flex-end;
  height: 100px;
  flex-wrap: wrap;
  padding: 0 2px;
}
.chart-bar {
  width: 12px;
  border-radius: 3px 3px 0 0;
  opacity: 0.8;
  transition: opacity 0.2s, transform 0.2s;
  animation: growBar 0.4s var(--ease-out) forwards;
}
.chart-bar:hover { opacity: 1; transform: scaleY(1.05); }
.chart-line {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: var(--cyan);
  z-index: 5;
  pointer-events: none;
  box-shadow: 0 0 6px var(--cyan-glow);
}
.chart-label {
  position: absolute;
  right: 0;
  font-size: 0.65rem;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-weight: 500;
  pointer-events: none;
}

/* ═══════════════ BADGES ═══════════════ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}
.badge-green { background: var(--success-bg); color: var(--success); border: 1px solid var(--cyan-glow); }
.badge-gold { background: var(--gold-soft); color: var(--gold-badge); border: 1px solid var(--gold-glow); }
.badge-red { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(214,90,122,0.15); }
.badge-gray { background: var(--bg-soft); color: var(--text-soft); border: 1px solid var(--border); }

/* ═══════════════ FORM ═══════════════ */

.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; margin-bottom: 0.4rem; font-weight: 500; font-size: 0.8rem; }
.form-group input, .form-group select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font-body);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text);
  transition: all var(--transition);
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}

/* ═══════════════ LOGIN ═══════════════ */

.login-box {
  max-width: 400px;
  margin: 3rem auto;
  padding: 2.5rem;
  background: linear-gradient(135deg, var(--bg-gold), var(--bg-glass));
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-radius: var(--radius-xl);
  border: 1px solid var(--gold-border);
  box-shadow: var(--shadow-lg), 0 0 40px var(--gold-glow);
  animation: fadeInUp 0.5s var(--ease-out) forwards;
}
.login-box h2 {
  font-family: var(--font-display);
  text-align: center;
  margin-bottom: 0.25rem;
  font-weight: 600;
}
.login-box .login-subtitle { text-align: center; color: var(--text-soft); margin-bottom: 1.5rem; font-size: 0.85rem; }
.login-box .login-icon {
  width: 56px; height: 56px;
  margin: 0 auto 1rem;
  border-radius: 16px;
  background: var(--bg-gold);
  border: 1px solid var(--gold-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  animation: floatY 4s ease-in-out infinite;
}

/* ═══════════════ ADMIN ═══════════════ */

.admin-table { width: 100%; border-collapse: collapse; margin-bottom: 1rem; }
.admin-table th, .admin-table td { padding: 0.65rem; border-bottom: 1px solid var(--border); text-align: left; }
.admin-table th {
  color: var(--text-faded);
  font-weight: 500;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
}
.admin-section { margin-bottom: 2.5rem; }
.admin-section h3 {
  margin-bottom: 0.75rem;
  color: var(--primary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ═══════════════ LOCKED ═══════════════ */

.locked-overlay {
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--bg-gold);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--gold-border-strong);
  color: var(--text-soft);
}
.locked-overlay .lock-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  animation: floatY 3s ease-in-out infinite;
}

/* ═══════════════ TOAST ═══════════════ */

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elevated);
  color: var(--text);
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid var(--gold-border);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s var(--ease-out);
  font-size: 0.85rem;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-6px); }

/* ═══════════════ FOOTER ═══════════════ */

.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-faded);
  font-size: 0.8rem;
  margin-top: 4rem;
  position: relative;
  z-index: 1;
}
.footer a { color: var(--text-soft); }

/* ═══════════════ DIVIDER ═══════════════ */

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-border-strong), transparent);
  margin: 3rem 0;
  border: none;
}

/* ═══════════════ RESPONSIVE ═══════════════ */

@media (max-width: 768px) {
  h1 { font-size: 1.9rem; }
  .hero h1 { font-size: 2.2rem; }
  .hero { padding: 4rem 1.5rem 3rem; }
  .hero .subtitle { font-size: 0.95rem; }
  .qcm-choices { grid-template-columns: 1fr !important; }
  .qcm-subliminal-word { font-size: 2.2rem; }
  .container { padding: 1.5rem 1rem; }
  .navbar { padding: 0.6rem 1rem; }
  .navbar .nav-links { gap: 0.75rem; }
  .navbar .nav-links a { font-size: 0.85rem; }
  .hero-stats { gap: 1.25rem; }
  .hero-stat::after { display: none; }
  .hero-stat .val { font-size: 1.3rem; }
  .section { padding: 3.5rem 1.5rem; }
  .card { padding: 1.25rem; }
  /* QCM mobile readability */
  .qcm-n1-container, .qcm-n2-container { padding: 1.5rem 1rem; }
  .qcm-question { font-size: 1.35rem; margin: 1.25rem 0 1.25rem; }
  .qcm-choice { padding: 1.1rem 1rem; font-size: 1.05rem; border-width: 2px; }
  .qcm-feedback { font-size: 1.05rem; }
  .qcm-progress { font-size: 0.9rem; }
  .qcm-image-wrapper, .qcm-image-zoom { aspect-ratio: 16/10; }
}

@media (max-width: 480px) {
  .qcm-question { font-size: 1.25rem; }
  .qcm-choice { padding: 1rem 0.85rem; font-size: 1rem; }
  .navbar .logo { font-size: 0.95rem; }
  .navbar .nav-links a { font-size: 0.8rem; }
  .qcm-image-wrapper, .qcm-image-zoom { aspect-ratio: 16/11; }
}

/* ═══════════════ ZONE CHART — 3 zones graphique ═══════════════ */

.zone-chart-wrapper {
  position: relative;
  display: flex;
  gap: 12px;
  margin: 1rem 0;
}

.zone-axis-y {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-faded);
  padding: 4px 0;
  min-width: 55px;
  text-align: right;
  border-right: 1px solid var(--border);
  padding-right: 8px;
}
.zone-axis-y span { line-height: 1; }

.zone-chart {
  position: relative;
  flex: 1;
  height: 340px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gold-border-strong);
}

.zone-band {
  position: absolute;
  left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.zone-intuition {
  background: linear-gradient(180deg, rgba(58,175,169,0.28), rgba(58,175,169,0.12));
}
.zone-hasard {
  background: linear-gradient(180deg, rgba(201,165,92,0.12), rgba(201,165,92,0.18), rgba(201,165,92,0.12));
}
.zone-counter {
  background: linear-gradient(180deg, rgba(123,106,214,0.12), rgba(123,106,214,0.28));
  border-bottom: none;
}

.zone-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0.7;
}
.zone-intuition .zone-label { color: #2a8a85; }
.zone-hasard .zone-label { color: #9a7a3a; }
.zone-counter .zone-label { color: #5a4a9a; }

.zone-bars { position: absolute; inset: 0; padding: 0 10px; }
.zone-bar-item {
  position: absolute;
  width: 12px;
  margin-left: -6px;
  transition: transform 0.2s;
}
.zone-bar-item:hover { transform: scale(1.3); z-index: 20; }
.zone-bar-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
}

.zone-avg-line {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: #7b6ad6;
  z-index: 10;
  box-shadow: 0 0 10px rgba(123,106,214,0.4);
}
.zone-avg-label {
  position: absolute;
  right: 6px;
  top: -10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #7b6ad6;
  white-space: nowrap;
  font-weight: 700;
  background: rgba(245,241,232,0.9);
  padding: 1px 6px;
  border-radius: 4px;
}

.zone-random-line {
  position: absolute;
  left: 0; right: 0;
  height: 0;
  border-top: 2px dashed #c9a55c;
  z-index: 9;
  opacity: 0.7;
}
.zone-random-label {
  position: absolute;
  left: 6px;
  top: -10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #c9a55c;
  white-space: nowrap;
  font-weight: 700;
  background: rgba(245,241,232,0.9);
  padding: 1px 6px;
  border-radius: 4px;
}

.zone-legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  min-width: 160px;
  background: linear-gradient(135deg, var(--bg-gold), var(--bg-glass));
  border-radius: var(--radius);
  border: 1px solid var(--gold-border);
  font-size: 0.75rem;
}
.legend-title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faded);
  margin-bottom: 2px;
}
.legend-item { display: flex; align-items: center; gap: 8px; color: var(--text); }
.legend-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 2px solid rgba(255,255,255,0.6);
}
.legend-line { width: 18px; height: 2px; flex-shrink: 0; border-radius: 1px; }
.legend-line.dashed { width: 18px; flex-shrink: 0; }
.legend-divider { height: 1px; background: var(--border); margin: 4px 0; }
.legend-text { font-family: var(--font-body); font-size: 0.75rem; line-height: 1.3; color: var(--text-soft); }

.zone-message-box {
  margin-top: 2rem;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  border: 1px solid var(--gold-border);
  background: linear-gradient(135deg, var(--bg-gold), var(--bg-glass));
  backdrop-filter: blur(12px);
}
.zone-message-box[data-tone="gold"] { border-color: var(--gold-border-strong); box-shadow: 0 0 30px var(--gold-glow); }
.zone-message-box[data-tone="green"] { border-color: rgba(58,175,169,0.3); box-shadow: 0 0 30px rgba(58,175,169,0.12); }
.zone-message-box[data-tone="violet"] { border-color: rgba(123,106,214,0.3); box-shadow: 0 0 30px rgba(123,106,214,0.12); }
.zone-message-box[data-tone="gray"] { border-color: var(--border); }
.zone-message-icon { font-size: 1.8rem; flex-shrink: 0; line-height: 1; }
.zone-message-title { font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; margin-bottom: 0.4rem; color: var(--text); }
.zone-message-text { font-size: 0.85rem; color: var(--text-soft); line-height: 1.55; }

/* ═══════════════ RESPONSIVE ZONE CHART ═══════════════ */

@media (max-width: 768px) {
  .zone-chart-wrapper { flex-direction: column; }
  .zone-axis-y { display: none; }
  .zone-chart { height: 220px; }
  .zone-legend {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px 12px;
    min-width: 0;
    padding: 10px;
  }
  .legend-title { width: 100%; margin-bottom: 4px; }
  .legend-divider { display: none; }
  .legend-text { font-size: 0.7rem; }
  .zone-bar-dot { width: 10px; height: 10px; }
  .zone-bar-item { width: 10px; margin-left: -5px; }
  .zone-avg-label, .zone-random-label { font-size: 0.65rem; }
}

@media (max-width: 480px) {
  .zone-chart { height: 180px; }
  .zone-label { font-size: 0.6rem; letter-spacing: 0.08em; }
  .zone-message-box { padding: 1rem; gap: 0.75rem; }
  .zone-message-icon { font-size: 1.4rem; }
  .zone-message-title { font-size: 0.95rem; }
}

/* ═══════════════ REDUCED MOTION ═══════════════ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .reveal-card, .reveal-heading { opacity: 1 !important; transform: none !important; filter: none !important; }
}