/* ============================================================
   King Terra Resources — css/style.css
   Architecture en couches — ~1500 lignes
   ============================================================ */

/* ============================================================
   1. CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Couleurs primaires */
  --color-primary: #c9a84c;       /* Or/Gold */
  --color-primary-dark: #a07830;
  --color-primary-light: #e8cb7a;
  --color-secondary: #1a3a5c;     /* Bleu nuit */
  --color-secondary-dark: #0a1628;
  --color-secondary-light: #2a5a8c;

  /* Couleurs neutres */
  --color-dark: #0a1628;
  --color-dark-80: rgba(10, 22, 40, 0.8);
  --color-text: #1e2d3d;
  --color-text-light: #4a5568;
  --color-text-muted: #718096;
  --color-white: #ffffff;
  --color-off-white: #f8f5f0;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;

  /* Accent */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Typographie */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', 'Source Sans Pro', system-ui, sans-serif;
  --font-mono: 'Courier New', monospace;

  /* Taille de texte */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Espacement */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;

  /* Rayons */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Ombres */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
  --shadow-gold: 0 4px 20px rgba(201, 168, 76, 0.3);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index */
  --z-header: 100;
  --z-dropdown: 200;
  --z-modal: 1000;
  --z-overlay: 999;

  /* Layout */
  --container-max: 1200px;
  --container-padding: 1.5rem;
  --header-height: 80px;
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700;900&family=Source+Sans+3:wght@300;400;600;700&display=swap');

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-secondary-dark);
}

h1 { font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl)); }
h2 { font-size: clamp(var(--text-2xl), 3.5vw, var(--text-4xl)); }
h3 { font-size: clamp(var(--text-xl), 2.5vw, var(--text-2xl)); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p { margin-bottom: var(--spacing-4); }
p:last-child { margin-bottom: 0; }

.text-gold { color: var(--color-primary); }
.text-navy { color: var(--color-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: var(--color-white); }
.text-center { text-align: center; }
.text-sm { font-size: var(--text-sm); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.font-heading { font-family: var(--font-heading); }

/* ============================================================
   4. LAYOUT
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.grid {
  display: grid;
  gap: var(--spacing-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }

section {
  padding: var(--spacing-20) 0;
}

/* ============================================================
   5. COMPONENTS
   ============================================================ */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-secondary-dark);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}
.btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-secondary-dark);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-secondary-dark);
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--color-secondary-dark);
  color: var(--color-white);
  border-color: var(--color-secondary-dark);
}
.btn-dark:hover {
  background: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--text-sm);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: var(--text-lg);
}

/* --- Badge --- */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-gold { background: rgba(201,168,76,0.15); color: var(--color-primary); }
.badge-navy { background: rgba(26,58,92,0.1); color: var(--color-secondary); }
.badge-green { background: rgba(16,185,129,0.1); color: #065f46; }
.badge-orange { background: rgba(245,158,11,0.1); color: #92400e; }
.badge-blue { background: rgba(59,130,246,0.1); color: #1e40af; }
.badge-gray { background: var(--color-gray-100); color: var(--color-gray-500); }

/* Badges statut projet */
.badge-encours { background: rgba(16,185,129,0.12); color: #065f46; }
.badge-termine { background: rgba(107,114,128,0.12); color: #374151; }
.badge-planifie { background: rgba(59,130,246,0.12); color: #1e40af; }

/* --- Card --- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.card-image-placeholder {
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, var(--color-secondary-dark) 0%, var(--color-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.card-body {
  padding: var(--spacing-6);
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-secondary-dark);
  margin-bottom: var(--spacing-2);
}

.card-text {
  color: var(--color-text-light);
  font-size: var(--text-sm);
  line-height: 1.6;
  margin-bottom: var(--spacing-4);
}

.card-footer {
  padding: var(--spacing-4) var(--spacing-6);
  border-top: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --- Section Label --- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-3);
}

.section-label::before {
  content: '';
  display: block;
  width: 2rem;
  height: 2px;
  background: var(--color-primary);
}

.section-header {
  margin-bottom: var(--spacing-12);
}

.section-header h2 {
  margin-bottom: var(--spacing-4);
}

.section-header p {
  color: var(--color-text-light);
  font-size: var(--text-lg);
  max-width: 640px;
}

.section-header.centered {
  text-align: center;
}

.section-header.centered p {
  margin-left: auto;
  margin-right: auto;
}

/* --- Divider --- */
.divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-full);
  margin: var(--spacing-4) 0;
}

.divider-center {
  margin-left: auto;
  margin-right: auto;
}

/* --- Breadcrumb --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--spacing-4) 0;
}

.breadcrumb a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--color-primary-dark); }

.breadcrumb-sep {
  color: var(--color-gray-300);
  user-select: none;
}

/* --- Page Hero (sous-pages) --- */
.page-hero {
  background: linear-gradient(135deg, var(--color-secondary-dark) 0%, var(--color-secondary) 100%);
  padding: calc(var(--header-height) + var(--spacing-16)) 0 var(--spacing-16);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M30 5 L55 30 L30 55 L5 30 Z' fill='none' stroke='rgba(201,168,76,0.06)' stroke-width='1'/%3E%3Cpath d='M30 15 L45 30 L30 45 L15 30 Z' fill='none' stroke='rgba(201,168,76,0.04)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 60px 60px;
}

.page-hero .container { position: relative; z-index: 1; }

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-4);
}

.page-hero p {
  color: rgba(255,255,255,0.8);
  font-size: var(--text-xl);
  max-width: 600px;
  margin-bottom: 0;
}

/* --- Stats Bar --- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.stat-item {
  background: var(--color-white);
  padding: var(--spacing-8) var(--spacing-6);
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 900;
  color: var(--color-primary);
  display: block;
  line-height: 1;
  margin-bottom: var(--spacing-2);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================
   6. HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: var(--z-header);
  transition: background var(--transition-base), box-shadow var(--transition-base);
  background: transparent;
}

.site-header.scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.site-header.header-solid {
  background: var(--color-secondary-dark);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-8);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.site-logo img {
  height: 52px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1);
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.nav-link {
  color: rgba(255,255,255,0.9);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: rgba(201,168,76,0.1);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
  border-radius: var(--radius-full);
}

.nav-link.active::after {
  width: calc(100% - 1.75rem);
}

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

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.nav-dropdown-toggle .arrow {
  font-size: 10px;
  transition: transform var(--transition-fast);
}

.nav-dropdown:hover .arrow,
.nav-dropdown.open .arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--color-secondary-dark);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: var(--radius-lg);
  min-width: 260px;
  padding: var(--spacing-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-xl);
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: 0.625rem 0.875rem;
  color: rgba(255,255,255,0.85);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.dropdown-item:hover {
  background: rgba(201,168,76,0.1);
  color: var(--color-primary);
}

.dropdown-item-icon {
  font-size: 1.1rem;
  width: 24px;
  text-align: center;
}

/* Header CTA */
.header-cta {
  flex-shrink: 0;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  border: none;
  background: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-secondary-dark);
  z-index: calc(var(--z-header) - 1);
  padding: calc(var(--header-height) + var(--spacing-8)) var(--spacing-6) var(--spacing-8);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.mobile-nav-link {
  color: rgba(255,255,255,0.9);
  font-size: var(--text-lg);
  font-weight: 600;
  padding: var(--spacing-3) 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: color var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-primary);
}

.mobile-nav-sub {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  padding-left: var(--spacing-4);
  margin-top: var(--spacing-2);
}

.mobile-nav-sub a {
  color: rgba(255,255,255,0.65);
  font-size: var(--text-base);
  padding: var(--spacing-2) 0;
  transition: color var(--transition-fast);
}

.mobile-nav-sub a:hover {
  color: var(--color-primary);
}

/* ============================================================
   7. FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-secondary-dark);
  color: rgba(255,255,255,0.8);
}

.footer-main {
  padding: var(--spacing-20) 0 var(--spacing-16);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-12);
}

.footer-brand .site-logo {
  margin-bottom: var(--spacing-5);
}

.footer-brand img {
  height: 48px;
}

.footer-desc {
  color: rgba(255,255,255,0.6);
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-bottom: var(--spacing-6);
}

.footer-social {
  display: flex;
  gap: var(--spacing-3);
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: var(--text-sm);
  font-weight: 700;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-secondary-dark);
}

.footer-col-title {
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-5);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer-link {
  color: rgba(255,255,255,0.6);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.footer-link:hover { color: var(--color-primary); }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.7);
}

.footer-contact-icon {
  color: var(--color-primary);
  font-size: 1rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.footer-bottom {
  padding: var(--spacing-6) 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
}

.footer-legal-links {
  display: flex;
  gap: var(--spacing-6);
}

.footer-legal-links a {
  color: rgba(255,255,255,0.4);
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover { color: var(--color-primary); }

/* ============================================================
   8. HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-secondary-dark) 0%, #12244a 50%, var(--color-secondary) 100%);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80'%3E%3Cpath d='M40 4 L76 40 L40 76 L4 40 Z' fill='none' stroke='rgba(201,168,76,0.06)' stroke-width='1.5'/%3E%3Cpath d='M40 18 L62 40 L40 62 L18 40 Z' fill='none' stroke='rgba(201,168,76,0.04)' stroke-width='1'/%3E%3Ccircle cx='40' cy='40' r='4' fill='rgba(201,168,76,0.05)'/%3E%3C/svg%3E");
  background-size: 80px 80px;
  animation: patternFloat 20s linear infinite;
}

@keyframes patternFloat {
  0% { transform: translate(0, 0); }
  100% { transform: translate(80px, 80px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: calc(var(--header-height) + var(--spacing-12)) 0 var(--spacing-24);
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-3);
  background: rgba(201,168,76,0.12);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: var(--radius-full);
  padding: 0.375rem 1rem;
  color: var(--color-primary-light);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-6);
}

.hero h1 {
  color: var(--color-white);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.15;
  margin-bottom: var(--spacing-6);
}

.hero h1 .highlight {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}

.hero-subtitle {
  color: rgba(255,255,255,0.75);
  font-size: var(--text-xl);
  line-height: 1.6;
  margin-bottom: var(--spacing-10);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-16);
}

.hero-scroll {
  position: absolute;
  bottom: var(--spacing-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-2);
  color: rgba(255,255,255,0.5);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce 2s ease infinite;
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* Hero décoration */
.hero-deco {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,168,76,0.06) 0%, transparent 70%);
  z-index: 1;
}

/* ============================================================
   9. SECTIONS PAR TYPE
   ============================================================ */
.section-light {
  background: var(--color-white);
}

.section-off-white {
  background: var(--color-off-white);
}

.section-gray {
  background: var(--color-gray-50);
}

.section-dark {
  background: var(--color-secondary-dark);
  color: var(--color-white);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}

.section-dark .section-label {
  color: var(--color-primary);
}

.section-dark p {
  color: rgba(255,255,255,0.75);
}

.section-pattern {
  position: relative;
  background: var(--color-secondary-dark);
  overflow: hidden;
}

.section-pattern::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M30 5 L55 30 L30 55 L5 30 Z' fill='none' stroke='rgba(201,168,76,0.06)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 60px 60px;
}

.section-pattern > * { position: relative; z-index: 1; }

/* ============================================================
   10. PAGE-SPECIFIC STYLES
   ============================================================ */

/* --- INDEX : Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-6);
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-8);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(201,168,76,0.3);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-5);
  display: block;
}

.service-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-3);
  color: var(--color-secondary-dark);
}

.service-card p {
  color: var(--color-text-light);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.service-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-top: var(--spacing-5);
  transition: gap var(--transition-fast);
}

.service-card .card-link:hover {
  gap: var(--spacing-3);
}

/* --- PROJETS --- */
.projets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--spacing-8);
}

.projet-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid var(--color-gray-200);
}

.projet-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.projet-card-header {
  background: linear-gradient(135deg, var(--color-secondary-dark), var(--color-secondary));
  padding: var(--spacing-6);
  position: relative;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.projet-minerai-icon {
  font-size: 3rem;
  position: absolute;
  top: var(--spacing-4);
  right: var(--spacing-4);
  opacity: 0.4;
}

.projet-card-body {
  padding: var(--spacing-6);
}

.projet-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.projet-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Filter buttons */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-10);
  padding: var(--spacing-4);
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  border: 2px solid transparent;
  background: var(--color-white);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.filter-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.filter-btn.active {
  background: var(--color-primary);
  color: var(--color-secondary-dark);
  border-color: var(--color-primary);
}

/* --- ACTUALITÉS --- */
.actualites-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-8);
}

.actu-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  cursor: pointer;
}

.actu-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.actu-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--color-secondary-dark), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.actu-card-body {
  padding: var(--spacing-6);
}

.actu-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-3);
}

.actu-date {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.actu-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-3);
  color: var(--color-secondary-dark);
  line-height: 1.4;
}

.actu-card p {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* --- CONTACT --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--spacing-12);
  align-items: start;
}

.contact-info-card {
  background: var(--color-secondary-dark);
  border-radius: var(--radius-xl);
  padding: var(--spacing-10);
  color: var(--color-white);
}

.contact-info-card h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-6);
}

.contact-detail {
  display: flex;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
  padding-bottom: var(--spacing-6);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.contact-detail:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.contact-detail-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(201,168,76,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  color: var(--color-primary);
}

.contact-detail-label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-1);
}

.contact-detail-value {
  color: rgba(255,255,255,0.9);
  font-size: var(--text-sm);
  font-weight: 500;
}

.contact-detail-value a {
  color: var(--color-primary-light);
  transition: color var(--transition-fast);
}

.contact-detail-value a:hover {
  color: var(--color-primary);
}

/* Formulaire contact */
.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-10);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-gray-200);
}

.contact-form h3 {
  margin-bottom: var(--spacing-6);
}

.form-group {
  margin-bottom: var(--spacing-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.15);
}

.form-control.error {
  border-color: var(--color-error);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4);
}

.form-feedback {
  display: none;
  padding: var(--spacing-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-top: var(--spacing-4);
}

.form-feedback.success {
  display: block;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  color: #065f46;
}

.form-feedback.error {
  display: block;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  color: #991b1b;
}

/* --- MODAL actualités --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,22,40,0.85);
  backdrop-filter: blur(4px);
  z-index: var(--z-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-6);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  max-width: 720px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(20px);
  transition: transform var(--transition-base);
  box-shadow: 0 25px 60px rgba(0,0,0,0.4);
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: var(--spacing-8) var(--spacing-8) var(--spacing-6);
  border-bottom: 1px solid var(--color-gray-100);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-4);
}

.modal-header h2 {
  font-size: var(--text-2xl);
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}

.modal-close:hover { background: var(--color-gray-200); }

.modal-body {
  padding: var(--spacing-8);
}

.modal-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
  padding-bottom: var(--spacing-6);
  border-bottom: 1px solid var(--color-gray-100);
}

.modal-content-text {
  color: var(--color-text-light);
  line-height: 1.8;
  white-space: pre-wrap;
}

/* --- FAQ --- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.faq-item {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: var(--spacing-5) var(--spacing-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  background: var(--color-white);
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--color-gray-50);
}

.faq-question .faq-icon {
  color: var(--color-primary);
  font-size: 1.25rem;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding: 0 var(--spacing-6) var(--spacing-5);
  color: var(--color-text-light);
  line-height: 1.7;
  font-size: var(--text-sm);
  background: var(--color-white);
}

.faq-item.open .faq-answer {
  display: block;
}

/* --- À PROPOS --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-visual-inner {
  background: linear-gradient(135deg, var(--color-secondary-dark), var(--color-secondary));
  border-radius: var(--radius-xl);
  padding: var(--spacing-12);
  text-align: center;
  color: var(--color-white);
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.about-year {
  font-family: var(--font-heading);
  font-size: 5rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--spacing-4);
}

.values-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  margin-top: var(--spacing-6);
}

.value-tag {
  background: rgba(201,168,76,0.12);
  border: 1px solid rgba(201,168,76,0.25);
  color: var(--color-primary);
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
}

/* --- SERVICES PAGE --- */
.service-hero-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-gray-200);
}

.service-hero-card-header {
  background: linear-gradient(135deg, var(--color-secondary-dark), var(--color-secondary));
  padding: var(--spacing-10);
  position: relative;
  overflow: hidden;
}

.service-hero-card-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Cpath d='M20 2 L38 20 L20 38 L2 20 Z' fill='none' stroke='rgba(201,168,76,0.08)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 40px 40px;
}

.service-icon-large {
  font-size: 4rem;
  position: relative;
  z-index: 1;
  display: block;
  margin-bottom: var(--spacing-4);
}

.service-hero-card-body {
  padding: var(--spacing-8);
}

.service-features-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.feature-item {
  display: flex;
  gap: var(--spacing-4);
  align-items: flex-start;
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(201,168,76,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
  font-size: 1.1rem;
}

/* ============================================================
   11. ANIMATIONS
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

.fade-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Counter animation */
.counter-value {
  display: inline-block;
}

/* Loading spinner */
.loading-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-12);
  flex-direction: column;
  gap: var(--spacing-4);
  color: var(--color-text-muted);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Scroll to top */
.scroll-top {
  position: fixed;
  bottom: var(--spacing-8);
  right: var(--spacing-8);
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-secondary-dark);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  z-index: 50;
  box-shadow: var(--shadow-lg);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* ============================================================
   12. RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-10);
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-10);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
    --container-padding: 1rem;
  }

  .site-nav,
  .header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }

  section {
    padding: var(--spacing-16) 0;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-content {
    padding-bottom: var(--spacing-16);
  }

  .hero h1 {
    font-size: var(--text-3xl);
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-form,
  .contact-info-card {
    padding: var(--spacing-6);
  }

  .footer-bottom-inner {
    flex-direction: column;
    gap: var(--spacing-4);
    text-align: center;
  }

  .modal {
    max-height: 90vh;
  }

  .modal-header,
  .modal-body {
    padding: var(--spacing-6);
  }

  .filter-bar {
    justify-content: center;
  }

  .projets-grid,
  .actualites-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .stats-bar {
    grid-template-columns: 1fr 1fr;
  }

  .stat-number {
    font-size: var(--text-3xl);
  }

  .hero-label {
    font-size: var(--text-xs);
  }

  .page-hero h1 {
    font-size: var(--text-2xl);
  }

  .scroll-top {
    bottom: var(--spacing-6);
    right: var(--spacing-6);
  }
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.hidden { display: none !important; }
.visible { display: block; }
.mt-4 { margin-top: var(--spacing-4); }
.mt-8 { margin-top: var(--spacing-8); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-8 { margin-bottom: var(--spacing-8); }
.py-2 { padding-top: var(--spacing-2); padding-bottom: var(--spacing-2); }
.pt-0 { padding-top: 0 !important; }