/* ============================================
   KSG STUDIO — Design System v2
   Thème sombre premium · Or méditerranéen
   Responsive · Accessible · Performant
   ============================================ */

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

/* --- Variables globales --- */
:root {
  /* Fonds */
  --bg-primary:     #0A0A0C;
  --bg-secondary:   #111115;
  --bg-tertiary:    #18181E;
  --bg-card:        rgba(22,22,28,0.85);
  --bg-card-hover:  rgba(28,28,36,0.95);

  /* Palette or / cuivre méditerranéen */
  --gold:           #C9A84C;
  --gold-light:     #DFC070;
  --gold-dark:      #8A6010;
  --gold-glow:      rgba(201,168,76,0.18);
  --copper:         #B07040;
  --bronze:         #8B5E2C;
  --amber:          #E8A020;

  /* Textes */
  --text-primary:   #F0EBE0;
  --text-secondary: #9A9490;
  --text-muted:     #5A5650;
  --ivory:          #F5F0E8;

  /* Accents */
  --blue-night:     #1A1A3E;
  --red-deep:       #7A1E00;
  --stone:          #3A3530;
  --sand:           #C2A878;

  /* Bordures */
  --border:         rgba(201,168,76,0.14);
  --border-hover:   rgba(201,168,76,0.45);
  --border-strong:  rgba(201,168,76,0.6);

  /* Ombres */
  --shadow:         0 4px 40px rgba(0,0,0,0.6);
  --shadow-gold:    0 4px 40px rgba(201,168,76,0.14);
  --shadow-deep:    0 16px 64px rgba(0,0,0,0.7);

  /* Rayons */
  --radius:         8px;
  --radius-lg:      16px;
  --radius-xl:      24px;

  /* Transitions */
  --transition:     0.3s cubic-bezier(0.4,0,0.2,1);
  --transition-slow:0.6s cubic-bezier(0.4,0,0.2,1);

  /* Typographie */
  --font-body:      'Inter', system-ui, sans-serif;
  --font-heading:   'Cinzel', Georgia, serif;

  /* Layout */
  --max-width:      1280px;
  --nav-height:     72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

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

ul, ol { list-style: none; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: 0.03em;
}

h1 { font-size: clamp(2rem, 5vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.4rem); font-weight: 600; }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 500; }

p { color: var(--text-secondary); max-width: 72ch; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10,10,12,0.94);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 1px 0 var(--border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo img { height: 42px; width: auto; }

.nav-logo span {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--gold);
  font-weight: 600;
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: var(--gold); }

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

/* Dropdown navigation */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 200px;
  background: rgba(10,10,12,0.97);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  backdrop-filter: blur(20px);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  top: calc(100% + 8px);
}

.nav-dropdown-menu a {
  display: block;
  padding: 10px 20px;
  font-size: 0.82rem;
  border-bottom: none;
  text-transform: none;
  letter-spacing: 0.04em;
}

.nav-dropdown-menu a::after { display: none; }

.nav-dropdown-menu a:hover {
  background: var(--gold-glow);
  padding-left: 26px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--gold);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ============================================
   BOUTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: var(--bg-primary);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,168,76,0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold);
}
.btn-secondary:hover {
  background: var(--gold-glow);
  color: var(--gold-light);
  border-color: var(--gold-light);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: var(--gold-glow);
}

/* ============================================
   SECTIONS
   ============================================ */
.section { padding: 96px 0; position: relative; }
.section-dark    { background: var(--bg-primary); }
.section-darker  { background: var(--bg-secondary); }
.section-accent  { background: var(--bg-tertiary); }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header h2 { margin-bottom: 16px; }
.section-header .gold-line {
  width: 60px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 16px auto 24px;
}
.section-header p { margin: 0 auto; max-width: 660px; }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.28) saturate(0.7);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10,10,12,0.2) 0%,
    rgba(10,10,12,0.55) 50%,
    var(--bg-primary) 100%
  );
  z-index: 1;
}

/* Grain texture subtil */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 24px;
  max-width: 860px;
}

.hero-logo {
  width: 140px;
  margin: 0 auto 32px;
  animation: fadeInDown 1s ease-out;
  filter: drop-shadow(0 4px 20px rgba(201,168,76,0.2));
}

.hero h1 {
  margin-bottom: 8px;
  animation: fadeInUp 1s ease-out 0.2s both;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--gold);
  font-family: var(--font-heading);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
  animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-subtitle {
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 44px;
  line-height: 1.8;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.5s both;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: fadeInUp 1s ease-out 1s both;
}

.hero-scroll span {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ============================================
   CARTES
   ============================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 50%; height: 100%;
  background: linear-gradient(to right, transparent, rgba(201,168,76,0.06), transparent);
  transform: skewX(-20deg);
  transition: all 0.7s ease;
  pointer-events: none;
}

.card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold), 0 16px 48px rgba(0,0,0,0.4);
}

.card:hover::before { left: 150%; }
.card:hover::after { opacity: 1; }

.card-icon {
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--gold-glow);
  border: 1px solid var(--border);
  color: var(--gold);
  margin-bottom: 20px;
  font-size: 1.3rem;
  font-family: var(--font-heading);
  font-weight: 700;
}

.card h3 { margin-bottom: 12px; font-size: 1.15rem; }
.card p { font-size: 0.93rem; line-height: 1.7; }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.cards-grid-2 { grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); }
.cards-grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.cards-grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.cards-grid-5 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* ============================================
   FEATURE ROW
   ============================================ */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  margin-bottom: 80px;
}

.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
}

.feature-image img {
  width: 100%;
  transition: transform 0.6s ease;
}

.feature-image:hover img { transform: scale(1.04); }

/* ============================================
   GALERIE
   ============================================ */
.gallery-filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 9px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 100px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.83rem;
  font-weight: 500;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gold-glow);
  border-color: var(--gold);
  color: var(--gold);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  transition: border-color var(--transition);
}

.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, filter 0.3s ease;
}

.gallery-item .gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(10,10,12,0.92) 0%, transparent 55%);
  display: flex;
  align-items: flex-end;
  padding: 18px;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item:hover { border-color: var(--border-hover); }

.gallery-overlay span {
  font-size: 0.82rem;
  color: var(--gold);
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.96);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.lightbox.active { display: flex; }

.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  position: relative;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
}

.lightbox-close {
  position: absolute;
  top: -60px; right: 0;
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-primary);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  z-index: 10001;
}
.lightbox-close:hover { background: var(--gold-glow); border-color: var(--gold); color: var(--gold); }

.lightbox-nav {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  z-index: 10001;
}
.lightbox-nav:hover { background: var(--gold-glow); border-color: var(--gold); }
.lightbox-prev { left: -70px; }
.lightbox-next { right: -70px; }

.lightbox-caption {
  position: absolute;
  bottom: -44px; left: 50%;
  transform: translateX(-50%);
  color: var(--gold);
  font-size: 0.88rem;
  text-align: center;
  white-space: nowrap;
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
  position: relative;
  padding: 40px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--gold), var(--gold), transparent);
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 48px;
  position: relative;
}

.timeline-item:nth-child(odd)  { flex-direction: row; }
.timeline-item:nth-child(even) { flex-direction: row-reverse; }

.timeline-content {
  width: 45%;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  backdrop-filter: blur(8px);
}

.timeline-content:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-gold);
  transform: translateY(-4px);
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--gold);
  border: 3px solid var(--bg-primary);
  z-index: 2;
  box-shadow: 0 0 12px rgba(201,168,76,0.4);
}

.timeline-step {
  font-family: var(--font-heading);
  color: var(--gold);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* Timeline process (galerie) */
.timeline-process {
  display: flex;
  flex-direction: column;
  gap: 48px;
  position: relative;
  padding: 40px 0;
}

.timeline-process::before {
  content: '';
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--gold), var(--gold-dark), transparent);
  transform: translateX(-50%);
}

.timeline-process-step {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  position: relative;
}

.timeline-process-step:nth-child(even) { flex-direction: row-reverse; }

.process-image-container {
  width: 45%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.process-image-container:hover {
  transform: scale(1.03);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-gold);
}

.process-image-container img { width: 100%; display: block; }

.process-text {
  width: 45%;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}

.process-text::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.process-text:hover::after { opacity: 1; }

.process-dot {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  top: 50%;
  width: 20px; height: 20px;
  background: var(--bg-primary);
  border: 3px solid var(--gold);
  border-radius: 50%;
  z-index: 2;
  box-shadow: 0 0 16px rgba(201,168,76,0.5);
}

/* ============================================
   FORMULAIRE CONTACT
   ============================================ */
.contact-form {
  max-width: 640px;
  margin: 0 auto;
}

.form-group { margin-bottom: 24px; }

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.03em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 13px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.93rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}

.form-group select option { background: var(--bg-tertiary); }

.form-group textarea { min-height: 160px; resize: vertical; }

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
  background: var(--gold-glow);
  border: 1px solid var(--gold);
  border-radius: var(--radius-lg);
}
.form-success.show { display: block; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 72px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand img { height: 44px; margin-bottom: 16px; }
.footer-brand p { font-size: 0.88rem; max-width: 280px; line-height: 1.7; }

.footer-col h4 {
  color: var(--gold);
  font-family: var(--font-heading);
  margin-bottom: 20px;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.86rem;
  margin-bottom: 10px;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-col a:hover { color: var(--gold); padding-left: 4px; }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

@keyframes shimmer {
  from { transform: translateX(-100%); }
  to   { transform: translateX(100%); }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201,168,76,0.2); }
  50% { box-shadow: 0 0 0 8px rgba(201,168,76,0); }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   UTILITAIRES
   ============================================ */
.text-gold    { color: var(--gold); }
.text-center  { text-align: center; }
.text-left    { text-align: left; }
.mb-0  { margin-bottom: 0; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.mt-16 { margin-top: 16px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }

/* En-tête de page intérieure */
.page-header {
  padding: 150px 0 72px;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 0%, rgba(201,168,76,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.page-header h1 { margin-bottom: 16px; position: relative; }

.page-header .gold-line {
  width: 60px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 16px auto 24px;
}

.page-header p { margin: 0 auto; max-width: 660px; position: relative; }

/* Encart information */
.info-box {
  background: rgba(201,168,76,0.05);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  padding: 28px 32px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 32px 0;
}
.info-box p { font-size: 0.95rem; }

/* Badge statut */
.badge-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(201,168,76,0.1);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.78rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 24px;
}

.badge-status .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: pulse 2s ease-in-out infinite;
}

/* Grille de valeurs */
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.value-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}
.value-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}
.value-card .value-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: 12px;
  font-weight: 700;
}
.value-card h3 { color: var(--gold); margin-bottom: 8px; font-size: 1rem; }

/* Liste stylisée */
.styled-list li {
  padding: 10px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 0.95rem;
  line-height: 1.6;
}
.styled-list li:last-child { border-bottom: none; }
.styled-list .bullet {
  color: var(--gold);
  font-weight: 700;
  flex-shrink: 0;
  font-size: 0.8rem;
}

/* Grille profil fondateur */
.founder-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  align-items: start;
}

.founder-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  text-align: center;
  backdrop-filter: blur(8px);
}

.founder-monogram {
  width: 88px; height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--bg-primary);
  margin: 0 auto 20px;
  box-shadow: 0 8px 32px rgba(201,168,76,0.25);
}

.founder-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 6px;
  font-weight: 600;
}

.founder-title {
  font-size: 0.83rem;
  color: var(--gold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* CVC — phases / objectifs */
.phase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.phase-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
  border-left: 3px solid var(--gold-dark);
}

.phase-card:hover {
  border-left-color: var(--gold);
  border-color: var(--border-hover);
  transform: translateX(4px);
  box-shadow: var(--shadow-gold);
}

.phase-label {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  color: var(--gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* Sections CVC grande image */
.cvc-hero {
  position: relative;
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.cvc-hero img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.25);
}

.cvc-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 80px 24px;
  max-width: 720px;
}

/* Jeloo — cases d'usage */
.usecase-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.usecase-tab {
  padding: 9px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.usecase-tab.active,
.usecase-tab:hover {
  background: var(--gold-glow);
  border-color: var(--gold);
  color: var(--gold);
}

.usecase-panel { display: none; }
.usecase-panel.active { display: grid; }

/* Barre de stat */
.stat-bar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-item { }
.stat-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.stat-label strong { color: var(--gold); }

.stat-track {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.stat-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold));
  border-radius: 2px;
  transition: width 1s ease 0.3s;
  width: 0;
}
.reveal.visible .stat-fill { width: var(--target-width, 80%); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .feature-row { grid-template-columns: 1fr; gap: 40px; }
  .feature-row.reverse { direction: ltr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .founder-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10,10,12,0.99);
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 999;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1rem; }
  .nav-toggle { display: flex; z-index: 1001; }
  .nav-dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; background: transparent; border: none; padding: 0; }

  .hero-buttons { flex-direction: column; align-items: center; }
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 40px; }

  .timeline::before { left: 20px; }
  .timeline-item,
  .timeline-item:nth-child(even) { flex-direction: column; padding-left: 48px; }
  .timeline-content { width: 100%; }
  .timeline-dot { left: 20px; top: 4px; }

  .timeline-process::before { left: 20px; }
  .timeline-process-step,
  .timeline-process-step:nth-child(even) { flex-direction: column; padding-left: 48px; gap: 20px; }
  .process-image-container, .process-text { width: 100%; }
  .process-dot { left: 20px; top: 0; transform: translate(-50%, 0); }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

  .gallery-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .values-grid { grid-template-columns: 1fr; }

  .lightbox { padding: 20px; }
  .lightbox-prev { left: 10px; }
  .lightbox-next { right: 10px; }
  .lightbox-close { top: -48px; right: 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .card { padding: 24px 18px; }
  .gallery-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .btn { padding: 12px 22px; font-size: 0.82rem; }
}