/* ============================================
   CHEKINA SARL - CSS PRINCIPAL (styles.css)
   Version Ultime - Design Professionnel
   Menu imbriqué, Galerie, Lightbox, Responsive
   ============================================ */

/* ========== VARIABLES CSS ========== */
:root {
  /* Couleurs Principales */
  --primary-color: #0f0f1f;
  --secondary-color: #1a1a3e;
  --accent-color: #e94560;
  --accent-light: #ff6b9d;
  --accent-dark: #c0392b;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  --danger-color: #e74c3c;
  --info-color: #3498db;

  /* Couleurs Neutres */
  --dark-gray: #2c3e50;
  --medium-gray: #95a5a6;
  --light-gray: #ecf0f1;
  --white: #ffffff;
  --text-color: #2c3e50;
  --text-light: #7f8c8d;
  --text-dark: #1a1a2e;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0f0f1f 0%, #1a1a3e 100%);
  --gradient-accent: linear-gradient(135deg, #e94560 0%, #ff6b9d 100%);
  --gradient-light: linear-gradient(135deg, #f5f7fa 0%, #ecf0f1 100%);
  --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);

  /* Espacement */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;

  /* Typographie */
  --font-primary: 'Roboto', sans-serif;
  --font-secondary: 'Montserrat', sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-xxl: 32px;
  --line-height-normal: 1.6;
  --line-height-tight: 1.4;

  /* Ombres */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
  --shadow-xl: 0 12px 36px rgba(0, 0, 0, 0.20);

  /* Transitions */
  --transition-fast: 0.2s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;

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

/* ========== RÉINITIALISATION ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

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

/* ========== TYPOGRAPHIE ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
  color: var(--dark-gray);
}
h1 { font-size: var(--font-size-xxl); }
h2 { font-size: 28px; }
h3 { font-size: 22px; }
h4 { font-size: 18px; }
h5 { font-size: 16px; }
h6 { font-size: 14px; }

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
}

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

/* ========== CONTENEURS ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}
.container-nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.container-hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}
.container-full {
  width: 100%;
  margin: 0;
  padding: 0;
}

/* ========== BOUTONS ========== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: var(--transition-normal);
  border: 2px solid transparent;
  text-align: center;
  letter-spacing: 0.5px;
}
.btn-primary {
  background: var(--gradient-accent);
  color: var(--white);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-secondary:hover {
  background: var(--white);
  color: var(--accent-color);
}
.btn-large {
  padding: var(--spacing-md) var(--spacing-xxl);
  font-size: var(--font-size-lg);
}

/* ========== NAVIGATION ========== */
.navbar-main {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-sm) 0;
  transition: var(--transition-normal);
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}
.logo {
  height: 50px;
  width: auto;
}
.brand-name {
  font-size: 24px;
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0;
  letter-spacing: 1px;
}
.navbar-menu {
  display: flex;
  list-style: none;
  gap: 0.6rem;
  align-items: center;
}
.nav-link {
  color: var(--text-color);
  font-weight: 600;
  font-size: var(--font-size-sm);
  position: relative;
  padding: 4px 0;
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: var(--transition-normal);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}
.nav-link:hover {
  color: var(--accent-color);
}
.navbar-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}
.hamburger {
  width: 28px;
  height: 3px;
  background: var(--text-color);
  margin: 4px 0;
  transition: var(--transition-normal);
  border-radius: 2px;
}
.btn-language {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

/* ========== DROPDOWN (SOUS-MENU) ========== */
.dropdown {
  position: relative;
}
.dropdown-toggle {
  cursor: pointer;
}
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--border-radius-md);
  padding: 0.5rem 0;
  z-index: 1000;
  list-style: none;
  animation: slideDown 0.25s ease forwards;
  border: 1px solid var(--light-gray);
}
.dropdown-menu li {
  width: 100%;
}
.dropdown-menu a {
  display: block;
  padding: 0.6rem 1.2rem;
  color: var(--text-color);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: var(--transition-normal);
  white-space: nowrap;
}
.dropdown-menu a:hover {
  background: var(--light-gray);
  color: var(--accent-color);
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== HÉRO ========== */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.hero-content {
  color: var(--white);
  z-index: 2;
}
.hero-title {
  font-size: 52px;
  font-weight: 900;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--white);
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.hero-subtitle {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--accent-light);
}
.hero-description {
  font-size: 17px;
  margin-bottom: var(--spacing-lg);
  color: rgba(255, 255, 255, 0.85);
  max-width: 550px;
}
.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xxl);
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}
.stat-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.08);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: var(--transition-normal);
}
.stat-item:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.14);
}
.stat-number {
  font-size: 40px;
  font-weight: 900;
  color: var(--accent-light);
  margin-bottom: var(--spacing-sm);
}
.stat-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
}

/* ========== SECTIONS GÉNÉRALES ========== */
section {
  padding: var(--spacing-xxl) 0;
}
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}
.section-header h2 {
  position: relative;
  display: inline-block;
  padding-bottom: var(--spacing-md);
  font-size: 34px;
}
.section-header h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 4px;
  background: var(--gradient-accent);
  border-radius: 2px;
}
.section-header p {
  font-size: 18px;
  color: var(--text-light);
  margin-top: var(--spacing-md);
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== À PROPOS ========== */
.about {
  background: var(--white);
}
.about-content {
  max-width: 900px;
  margin: 0 auto;
  line-height: 1.8;
  color: var(--text-light);
}
.about-content h3 {
  color: var(--dark-gray);
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  font-size: 22px;
  position: relative;
  padding-left: 1rem;
}
.about-content h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: 2px;
}
.about-content p {
  margin-bottom: 1.5rem;
  text-align: justify;
  font-size: 15px;
}
.vision-box {
  background: var(--light-gray);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  margin-top: 2rem;
}
.vision-box h4 {
  color: var(--accent-color);
  margin-bottom: 1rem;
  font-size: 18px;
}
.vision-list {
  list-style: none;
  padding-left: 0;
}
.vision-list li {
  padding: 0.6rem 0;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.6;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.vision-list li:last-child {
  border-bottom: none;
}
.vision-list li::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent-color);
  border-radius: 50%;
  margin-right: 0.75rem;
  vertical-align: middle;
}

/* ========== SERVICES ========== */
.services {
  background: var(--light-gray);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}
.service-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  text-align: center;
  border-bottom: 4px solid transparent;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-bottom-color: var(--accent-color);
}
.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  background: var(--gradient-light);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-lg);
  color: var(--accent-color);
  transition: var(--transition-normal);
}
.service-card:hover .service-icon {
  background: var(--gradient-accent);
  color: var(--white);
}
.service-card h3 {
  margin-bottom: var(--spacing-md);
  font-size: 20px;
}
.service-card p {
  margin-bottom: var(--spacing-md);
  text-align: center;
  font-size: 15px;
}
.service-features {
  list-style: none;
  text-align: left;
}
.service-features li {
  padding-left: var(--spacing-md);
  position: relative;
  margin-bottom: var(--spacing-sm);
  color: var(--text-light);
  font-size: 14px;
}
.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: 700;
}

/* ========== CONCESSIONS ========== */
.concessions {
  background: var(--white);
}
.concessions-content {
  max-width: 1100px;
  margin: 0 auto;
}
.concessions-content h3 {
  color: var(--dark-gray);
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  font-size: 22px;
  position: relative;
  padding-left: 1rem;
}
.concessions-content h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: 2px;
}
.concessions-content p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.8;
  font-size: 15px;
}
.tonnage-note {
  background: #e8f4f8;
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  margin-top: 2rem;
  border-left: 4px solid var(--accent-color);
}
.tonnage-note h4 {
  color: var(--accent-color);
  margin-bottom: 0.5rem;
  font-size: 16px;
}
.tonnage-note p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 0;
}

/* ========== EXPLORATION ========== */
.exploration {
  background: var(--white);
}
.exploration-content {
  max-width: 1100px;
  margin: 0 auto;
}
.exploration-content h3 {
  color: var(--dark-gray);
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  font-size: 22px;
  position: relative;
  padding-left: 1rem;
}
.exploration-content h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: 2px;
}
.exploration-content p {
  color: var(--text-light);
  line-height: 1.8;
  font-size: 15px;
  margin-bottom: 1.5rem;
}
.anomaly-box {
  background: #f9f9f9;
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
}
.anomaly-box h4 {
  color: var(--accent-color);
  margin-bottom: 1rem;
}
.anomaly-list {
  list-style: none;
  padding-left: 0;
}
.anomaly-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #eee;
  display: flex;
  align-items: flex-start;
}
.anomaly-list li:last-child {
  border-bottom: none;
}
.anomaly-list .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent-color);
  border-radius: 50%;
  margin-right: 0.75rem;
  margin-top: 0.5rem;
  flex-shrink: 0;
}
.next-steps {
  background: #e8f4f8;
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  margin-top: 2rem;
  border-left: 4px solid var(--accent-color);
}
.next-steps h4 {
  color: var(--accent-color);
  margin-bottom: 1rem;
}
.next-steps ul {
  list-style: none;
  padding-left: 0;
}
.next-steps ul li {
  padding: 0.4rem 0;
  border-bottom: 1px solid #d0e0e8;
  color: var(--text-light);
}
.next-steps ul li:last-child {
  border-bottom: none;
}
.next-steps ul li::before {
  content: '✓ ';
  color: var(--success-color);
  font-weight: 700;
}

/* ========== GÉOLOGIE ========== */
.geologie {
  background: var(--light-gray);
}
.geologie-content {
  max-width: 1100px;
  margin: 0 auto;
}
.geologie-content h3 {
  color: var(--dark-gray);
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  font-size: 22px;
  position: relative;
  padding-left: 1rem;
}
.geologie-content h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: 2px;
}
.geologie-content p {
  color: var(--text-light);
  line-height: 1.8;
  font-size: 15px;
  margin-bottom: 1.5rem;
}
.geologie .info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}
.geologie .info-card {
  background: var(--white);
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
}
.geologie .info-card h4 {
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}
.geologie .info-card ul {
  list-style: none;
  padding-left: 0;
}
.geologie .info-card ul li {
  padding: 0.4rem 0;
  border-bottom: 1px solid #eee;
}
.geologie .info-card ul li:last-child {
  border-bottom: none;
}
.geologie .highlight-box {
  background: #e8f4f8;
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  margin-top: 1.5rem;
  border-left: 4px solid var(--accent-color);
}
.geologie .highlight-box h4 {
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

/* ========== OPÉRATIONS ========== */
.operations {
  background: var(--white);
}
.operations-content {
  max-width: 1100px;
  margin: 0 auto;
}
.operations-content h3 {
  color: var(--dark-gray);
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  font-size: 22px;
  position: relative;
  padding-left: 1rem;
}
.operations-content h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: 2px;
}
.operations-content p {
  color: var(--text-light);
  line-height: 1.8;
  font-size: 15px;
}
.stats-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: #f9f9f9;
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  text-align: center;
  transition: var(--transition-normal);
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.stat-card h4 {
  color: var(--accent-color);
  font-size: 32px;
  margin-bottom: 0.25rem;
}
.stat-card p {
  font-size: 14px;
  margin-bottom: 0;
  color: var(--text-light);
}
.interventions-list {
  list-style: none;
  padding: 0;
  background: var(--light-gray);
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
}
.interventions-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #ddd;
  color: var(--text-light);
  font-size: 14px;
}
.interventions-list li:last-child {
  border-bottom: none;
}
.interventions-list li::before {
  content: '✓ ';
  color: var(--success-color);
  font-weight: 700;
}

/* ========== ÉTUDE DE FAISABILITÉ ========== */
.etude {
  background: var(--light-gray);
}
.etude-content {
  max-width: 1100px;
  margin: 0 auto;
}
.etude-content h3 {
  color: var(--dark-gray);
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  font-size: 22px;
  position: relative;
  padding-left: 1rem;
}
.etude-content h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: 2px;
}
.etude-content p {
  color: var(--text-light);
  line-height: 1.8;
  font-size: 15px;
  margin-bottom: 1.5rem;
}
.sensitivity-alert {
  background: #fff3cd;
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  border-left: 4px solid #ffc107;
  margin-bottom: 1.5rem;
}
.sensitivity-alert p {
  margin-bottom: 0.5rem;
}
.sensitivity-alert .negative {
  color: var(--danger-color);
}
.recommendations-list {
  list-style: none;
  padding: 0;
  background: var(--white);
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
}
.recommendations-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #eee;
  color: var(--text-light);
  font-size: 14px;
}
.recommendations-list li:last-child {
  border-bottom: none;
}
.recommendations-list li::before {
  content: '✓ ';
  color: var(--success-color);
  font-weight: 700;
}

/* ========== PROJETS ========== */
.projects {
  background: var(--white);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}
.project-card {
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  background: var(--white);
}
.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}
.project-image {
  height: 220px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.project-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.2);
  transition: var(--transition-normal);
}
.project-card:hover .project-image::after {
  background: rgba(0, 0, 0, 0.4);
}
.project-content {
  padding: var(--spacing-lg);
}
.project-content h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 20px;
}
.project-category {
  color: var(--accent-color);
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
}
.project-meta {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}
.badge {
  display: inline-block;
  background: var(--gradient-accent);
  color: var(--white);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

/* ========== ACTUALITÉS / BLOG ========== */
.actualites {
  background: var(--light-gray);
  padding: var(--spacing-xxl) 0;
}
.actualites-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.article-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}
.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.article-image {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 40px;
}
.article-content {
  padding: 1.5rem;
}
.article-content .article-date {
  font-size: 12px;
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.article-content h3 {
  font-size: 18px;
  margin-bottom: 0.5rem;
}
.article-content p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 1rem;
}
.article-content .read-more {
  color: var(--accent-color);
  font-weight: 600;
  font-size: 14px;
}

/* ========== GALERIE ========== */
.galerie {
  background: var(--white);
  padding: var(--spacing-xxl) 0;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  aspect-ratio: 4 / 3;
  background: var(--light-gray);
}
.gallery-item:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
  z-index: 2;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: var(--transition-normal);
}
.gallery-item .gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: #fff;
  padding: 1rem 0.8rem 0.8rem 0.8rem;
  font-size: 12px;
  font-weight: 500;
  transform: translateY(100%);
  transition: var(--transition-normal);
  text-align: center;
  backdrop-filter: blur(2px);
  line-height: 1.3;
}
.gallery-item:hover .gallery-caption {
  transform: translateY(0);
}

/* ========== LIGHTBOX ========== */
#lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.92);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  cursor: pointer;
  backdrop-filter: blur(10px);
}
#lightbox.active {
  display: flex;
  animation: fadeIn 0.3s ease;
}
#lightbox .close-lightbox {
  position: absolute;
  top: 20px;
  right: 35px;
  color: #fff;
  font-size: 40px;
  font-weight: 300;
  cursor: pointer;
  transition: var(--transition-normal);
  line-height: 1;
  z-index: 10;
}
#lightbox .close-lightbox:hover {
  transform: rotate(90deg);
  color: var(--accent-color);
}
#lightbox img {
  max-width: 90%;
  max-height: 80%;
  object-fit: contain;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
  border: 2px solid rgba(255,255,255,0.1);
}
#lightbox .lightbox-caption {
  color: #fff;
  font-size: 16px;
  margin-top: 15px;
  font-weight: 400;
  background: rgba(0,0,0,0.5);
  padding: 8px 24px;
  border-radius: 30px;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  max-width: 80%;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ========== EXPERTISE ========== */
.expertise {
  background: var(--light-gray);
}
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xxl);
}
.expertise-item {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}
.expertise-item:hover {
  box-shadow: var(--shadow-md);
}
.expertise-item h3 {
  margin-bottom: var(--spacing-md);
  font-size: 18px;
}
.progress-bar {
  height: 10px;
  background: var(--light-gray);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}
.progress {
  height: 100%;
  background: var(--gradient-accent);
  transition: width 1s ease-in-out;
  border-radius: var(--border-radius-sm);
}
.expertise-item p {
  color: var(--accent-color);
  font-weight: 700;
  text-align: right;
}

/* ========== ÉQUIPE ========== */
.team {
  background: var(--white);
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xxl);
}
.team-member {
  text-align: center;
}
.member-image {
  width: 160px;
  height: 160px;
  margin: 0 auto var(--spacing-lg);
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--white);
  transition: var(--transition-normal);
}
.member-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.team-member:hover .member-image {
  border-color: var(--accent-color);
  transform: scale(1.02);
}
.team-member h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 22px;
}
.member-title {
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}
.member-titles-list {
  list-style: none;
  padding-left: 0;
  margin-top: 0.5rem;
}
.member-titles-list li {
  font-size: 13px;
  color: var(--text-light);
  padding: 0.2rem 0;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.member-titles-list li:last-child {
  border-bottom: none;
}
.member-titles-list li::before {
  content: '▸ ';
  color: var(--accent-color);
  font-weight: 700;
}
.member-bio {
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
  font-size: 15px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}
.member-social {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}
.social-link {
  display: inline-block;
  padding: 8px 20px;
  background: var(--light-gray);
  color: var(--text-color);
  border-radius: var(--border-radius-md);
  transition: var(--transition-normal);
  font-size: 14px;
}
.social-link:hover {
  background: var(--gradient-accent);
  color: var(--white);
}

/* ========== CONTACT ========== */
.contact {
  background: var(--light-gray);
}
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
}
.contact-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}
.contact-item h4 {
  color: var(--accent-color);
  margin-bottom: var(--spacing-md);
  font-size: 16px;
}
.contact-item p {
  color: var(--text-light);
  line-height: 1.8;
  font-size: 15px;
}
.contact-item a {
  color: var(--accent-color);
  font-weight: 600;
}
.social-links {
  display: flex;
  gap: var(--spacing-md);
}
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--gradient-accent);
  color: var(--white);
  border-radius: 50%;
  transition: var(--transition-normal);
  font-size: 14px;
}
.social-icon:hover {
  transform: scale(1.1);
}

/* ========== FORMULAIRE ========== */
.contact-form {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
}
.form-group {
  margin-bottom: var(--spacing-md);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius-md);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  transition: var(--transition-normal);
  background: var(--white);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 4px rgba(233, 69, 96, 0.08);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}
.form-group.checkbox {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}
.form-group.checkbox input {
  width: auto;
  cursor: pointer;
}
.form-group.checkbox label {
  cursor: pointer;
  color: var(--text-light);
  font-size: 14px;
}
.form-response {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  display: none;
  font-weight: 600;
}
.form-response.success {
  display: block;
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}
.form-response.error {
  display: block;
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

/* ========== MAP ========== */
.map-section {
  background: var(--white);
  padding: var(--spacing-xxl) 0;
}
.map-section h2 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}
.map-container {
  width: 100%;
  height: 420px;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  z-index: 1;
}

/* ========== FOOTER ========== */
.footer {
  background: var(--primary-color);
  color: var(--white);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}
.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}
.footer-section h4 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 16px;
  position: relative;
  padding-bottom: var(--spacing-sm);
}
.footer-section h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 2px;
}
.footer-section p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}
.footer-section ul {
  list-style: none;
}
.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}
.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition-normal);
  font-size: 14px;
}
.footer-section a:hover {
  color: var(--accent-light);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-socials {
  display: flex;
  gap: var(--spacing-md);
}
.footer-socials a {
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition-normal);
}
.footer-socials a:hover {
  color: var(--accent-light);
}

/* ========== SCROLL TO TOP ========== */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 52px;
  height: 52px;
  background: var(--gradient-accent);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  font-size: 24px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  z-index: 999;
}
.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.scroll-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}
.animate-fadeInUp {
  animation: fadeInUp 0.6s ease-out forwards;
}
.animate-slideInLeft {
  animation: slideInLeft 0.6s ease-out forwards;
}
.animate-slideInRight {
  animation: slideInRight 0.6s ease-out forwards;
}

/* ========== UTILITAIRES ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ========== FORMULAIRES ========== */
input::placeholder,
textarea::placeholder {
  color: var(--medium-gray);
}
select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23e94560' stroke-width='2'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 40px;
  cursor: pointer;
}

/* ========== TABLEAUX ========== */
.table-wrapper {
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  background: var(--white);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
table thead {
  background: var(--gradient-primary);
  color: var(--white);
}
table thead th {
  padding: 0.85rem 1rem;
  text-align: left;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.5px;
}
table tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--light-gray);
  color: var(--text-color);
}
table tbody tr:hover {
  background: rgba(233, 69, 96, 0.04);
}
table tbody tr:last-child td {
  border-bottom: none;
}
table tbody tr:nth-child(odd) {
  background: var(--white);
}
table tbody tr:nth-child(even) {
  background: #f9f9f9;
}
table tbody tr:last-child {
  background: #f0f0f0;
  font-weight: 700;
}

/* ========== RESPONSIVE - DESKTOP ========== */
@media (max-width: 1024px) {
  :root {
    --font-size-base: 15px;
    --spacing-xxl: 3rem;
  }
  .container-hero {
    grid-template-columns: 1fr;
    padding: var(--spacing-xl) var(--spacing-md);
  }
  .hero-title { font-size: 36px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .actualites-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .expertise-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .contact-info { grid-template-columns: 1fr; }
  .footer-content { grid-template-columns: repeat(2, 1fr); }
  .stats-cards { grid-template-columns: repeat(3, 1fr); }
  .geologie .info-grid { grid-template-columns: 1fr; }
  .navbar-menu { gap: 0.5rem; }
}

/* ========== RESPONSIVE - TABLETTE ========== */
@media (max-width: 768px) {
  :root {
    --font-size-base: 14px;
    --font-size-xxl: 24px;
    --spacing-xl: 1.5rem;
    --spacing-xxl: 2rem;
  }
  body { font-size: var(--font-size-base); }

  /* Navigation mobile */
  .navbar-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--white);
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    max-height: 80vh;
    overflow-y: auto;
    gap: 0;
  }
  .navbar-menu.active { display: flex; }
  .navbar-menu li { width: 100%; }
  .nav-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
  }
  .nav-link::after { display: none; }
  .navbar-toggle { display: flex; }
  .navbar-toggle.active .hamburger:nth-child(1) {
    transform: rotate(-45deg) translate(-8px, 6px);
  }
  .navbar-toggle.active .hamburger:nth-child(2) { opacity: 0; }
  .navbar-toggle.active .hamburger:nth-child(3) {
    transform: rotate(45deg) translate(-8px, -6px);
  }

  /* Sous-menus mobile */
  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    background: var(--light-gray);
    border-radius: 0;
    margin-left: 1rem;
    animation: none;
    padding: 0;
  }
  .dropdown-menu a {
    padding: 0.6rem 1.5rem;
    font-size: var(--font-size-sm);
  }
  .dropdown.open .dropdown-menu { display: block; }
  .dropdown-toggle::after {
    content: ' ▾';
    font-size: 0.7rem;
    display: inline-block;
    transition: transform 0.2s ease;
  }
  .dropdown.open .dropdown-toggle::after {
    transform: rotate(180deg);
  }

  /* Héro */
  .hero { min-height: 450px; }
  .hero-title { font-size: 28px; }
  .hero-subtitle { font-size: 18px; }
  .hero-cta { flex-direction: column; }
  .btn { width: 100%; text-align: center; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: var(--spacing-md); }
  .stat-number { font-size: 30px; }

  /* Grids */
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .actualites-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .project-image { height: 180px; }
  .expertise-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .contact-info { grid-template-columns: 1fr; }
  .footer-content { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--spacing-md); text-align: center; }
  .footer-socials { justify-content: center; }
  .stats-cards { grid-template-columns: 1fr 1fr; }

  section { padding: var(--spacing-xl) 0; }
  .section-header h2 { font-size: 24px; }
  .map-container { height: 280px; }
  .scroll-to-top { width: 44px; height: 44px; bottom: 20px; right: 20px; font-size: 20px; }
}

/* ========== RESPONSIVE - MOBILE ========== */
@media (max-width: 600px) {
  :root {
    --font-size-base: 13px;
    --font-size-sm: 12px;
    --font-size-lg: 16px;
    --font-size-xxl: 20px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 1.5rem;
    --spacing-xxl: 1.5rem;
  }
  .container { padding: 0 var(--spacing-sm); }
  .container-nav { padding: 0 var(--spacing-sm); }
  h1 { font-size: 22px; }
  h2 { font-size: 20px; }
  h3 { font-size: 18px; }
  .btn { padding: var(--spacing-sm) var(--spacing-md); font-size: 13px; }
  .btn-large { padding: var(--spacing-md) var(--spacing-lg); }
  .brand-name { font-size: 18px; }
  .logo { height: 40px; }
  .hero { min-height: 350px; padding: var(--spacing-xl) 0; }
  .hero-title { font-size: 22px; letter-spacing: 1px; }
  .hero-subtitle { font-size: 16px; }
  .hero-description { font-size: 14px; }
  .stat-item { padding: var(--spacing-md); }
  .stat-number { font-size: 24px; }
  .stat-label { font-size: 12px; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: var(--spacing-sm); }
  .service-card { padding: var(--spacing-lg); }
  .service-icon { width: 60px; height: 60px; }
  .project-image { height: 160px; }
  .project-content { padding: var(--spacing-md); }
  .gallery-grid { grid-template-columns: 1fr; }
  .member-image { width: 120px; height: 120px; }
  .contact-form { padding: var(--spacing-lg); }
  .map-container { height: 220px; }
  .footer { padding: var(--spacing-xl) 0 var(--spacing-md); }
  .footer-content { gap: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
  .footer-section h4 { font-size: 14px; }
  .footer-section p, .footer-section a { font-size: 12px; }
  .footer-bottom { font-size: 12px; padding-top: var(--spacing-md); }
  .scroll-to-top { width: 38px; height: 38px; bottom: 15px; right: 15px; font-size: 18px; }
  .stats-cards { grid-template-columns: 1fr; }
  .form-group input, .form-group textarea, .form-group select {
    padding: 10px var(--spacing-sm);
    font-size: 16px;
  }
  .form-group textarea { min-height: 100px; }
  .geologie .info-grid { grid-template-columns: 1fr; }
  .exploration-content h3, .etude-content h3, .geologie-content h3 { font-size: 18px; }
  .anomaly-list li { flex-wrap: wrap; }
  .sensitivity-alert { padding: 1rem; }
  .recommendations-list { padding: 1rem; }
}

/* ========== RESPONSIVE - TRÈS PETIT MOBILE ========== */
@media (max-width: 360px) {
  :root {
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1rem;
    --spacing-xxl: 1rem;
  }
  .hero-title { font-size: 18px; }
  h2 { font-size: 18px; }
  h3 { font-size: 16px; }
  .btn { padding: 6px 12px; font-size: 12px; }
  .footer-content { grid-template-columns: 1fr; }
  .contact-info { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
}

/* ========== RESPONSIVE - PAYSAGE MOBILE ========== */
@media (max-height: 500px) and (orientation: landscape) {
  .hero { min-height: auto; padding: var(--spacing-lg) 0; }
  .hero-stats { grid-template-columns: repeat(4, 1fr); gap: var(--spacing-md); }
  section { padding: var(--spacing-lg) 0; }
}

/* ========== IMPRESSION ========== */
@media print {
  body { font-size: 12pt; color: black; }
  .navbar-main, .footer, .scroll-to-top, .contact-form { display: none; }
  section { page-break-inside: avoid; }
  a { text-decoration: underline; }
}

/* ========== ACCESSIBILITÉ ========== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========== MODE SOMBRE ========== */
@media (prefers-color-scheme: dark) {
  :root {
    --white: #1a1a2e;
    --text-color: #ecf0f1;
    --text-light: #b0b0c0;
    --light-gray: #2c3e50;
    --dark-gray: #0f0f1e;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.6);
  }
  body { background-color: var(--dark-gray); }
  .service-card, .contact-form, .project-card, .expertise-item,
  .anomaly-box, .recommendations-list, .stat-card,
  .geologie .info-card, .article-card {
    background: var(--dark-gray);
  }
  .next-steps { background: #1c3a4a; }
  .sensitivity-alert { background: #3d3a1a; border-left-color: #f39c12; }
  .sensitivity-alert p { color: #e0d5a0; }
  .anomaly-list li, .recommendations-list li,
  .geologie .info-card ul li, .member-titles-list li { border-bottom-color: #444; }
  .vision-box { background: #2c3e50; }
  .vision-list li { border-bottom-color: #444; }
  .tonnage-note { background: #1c3a4a; }
  .stat-item { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.08); }
  .contact-item p, .contact-item a { color: #b0b0c0; }
  .form-group input, .form-group textarea, .form-group select {
    background: #2a2a3e;
    border-color: #444;
    color: #ecf0f1;
  }
  .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(233,69,96,0.15);
  }
  table tbody tr:nth-child(even) { background: #2a2a3e; }
  table tbody tr:last-child { background: #3a3a4e; }
  .navbar-menu { background: var(--dark-gray); }
  .nav-link { color: var(--text-color); }
  .geologie .highlight-box { background: #1c3a4a; }
  .dropdown-menu { background: var(--dark-gray); border-color: #444; }
  .dropdown-menu a:hover { background: #3a3a4e; }
  .article-card:hover { background: #2a2a3e; }
}