@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* ==========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
  /* Palette principale */
  --primary: #223c5b;
  --primary-dark: #112235;
  --primary-light: #32557f;
  --accent: #c75a4c;
  --accent-hover: #b04d40;
  --success: #2e7d32;

  /* Neutres & Fonds */
  --bg-light: #f8fafc;
  --bg-dark: #0a1420;
  --gray-50: #f1f5f9;
  --gray-100: #e2e8f0;
  --gray-200: #cbd5e0;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --white: #ffffff;

  /* Typographies */
  --font-title: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(255, 255, 255, 0.25);
  --glass-shadow: 0 20px 40px -15px rgba(34, 60, 91, 0.08);
  --glass-bg-dark: rgba(17, 34, 53, 0.7);
  --glass-border-dark: rgba(255, 255, 255, 0.08);

  /* Spacings & Borders */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  
  --container-width: 1280px;
  --header-height: 90px;
  --header-shrink-height: 70px;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-light);
  color: var(--gray-800);
  line-height: 1.6;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  background: none;
  border: none;
  outline: none;
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  color: var(--primary-dark);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.4rem, 3vw, 2rem); }
h4 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p {
  color: var(--gray-700);
  font-weight: 400;
}

.hero-gradient-text {
  color: var(--accent);
}

/* ==========================================================================
   GRID & LAYOUT UTILITIES
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

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

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

.section-dark p {
  color: var(--gray-200);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-subtitle {
  color: var(--accent);
  text-transform: uppercase;
  font-family: var(--font-title);
  font-weight: 700;
  letter-spacing: 2px;
  font-size: 0.875rem;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  margin-bottom: 20px;
}

/* ==========================================================================
   BUTTONS & INTERACTIONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--white);
  box-shadow: 0 10px 20px -10px rgba(199, 90, 76, 0.4);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--accent-hover);
  z-index: -1;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 25px -10px rgba(199, 90, 76, 0.5);
}

.btn-primary:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--primary-dark);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: translateY(-3px);
}

.btn-text {
  padding: 0;
  border-radius: 0;
  font-weight: 700;
  color: var(--accent);
  gap: 6px;
}

.btn-text svg {
  transition: transform var(--transition-fast);
}

.btn-text:hover {
  color: var(--accent-hover);
}

.btn-text:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   HEADER NAVIGATION
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  transition: all var(--transition-normal);
  background: transparent;
  border-bottom: 1px solid transparent;
}

.header.sticky {
  height: var(--header-shrink-height);
  background: rgba(10, 20, 32, 0.85); /* Fond sombre flouté très haut de gamme */
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  z-index: 102;
}

.logo {
  height: 50px;
  width: auto;
  transition: height var(--transition-normal);
}

.header.sticky .logo {
  height: 42px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-title);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--white);
  opacity: 0.85;
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  opacity: 1;
  color: var(--accent);
}

.nav-link:hover::after, .nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Fallback light mode header styling if background is light */
.header.sticky .nav-link {
  color: var(--white);
}

.nav-cta {
  display: flex;
  align-items: center;
}

.nav-cta .btn {
  padding: 10px 20px;
  font-size: 0.9rem;
}

/* Mobile Toggle Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  cursor: pointer;
  z-index: 102;
}

.nav-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--white);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* Sticky toggle colors */
.header.sticky .nav-toggle span {
  background-color: var(--white);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Drawer Overlay */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 20, 32, 0.4);
  backdrop-filter: blur(8px);
  z-index: 98;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ==========================================================================
   HERO SECTION (EDITORIAL & IMMERSIF)
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 80px;
  overflow: hidden;
  background-color: var(--bg-dark);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.35;
  transform: scale(1.05);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 70% 30%, transparent 20%, rgba(10, 20, 32, 0.95) 80%);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.hero-text {
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.badge-accent {
  font-size: 1rem;
}

.badge-text {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--white);
}

.hero-title {
  color: var(--white);
  font-size: clamp(2.8rem, 6vw, 4.25rem);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-subtitle {
  color: var(--gray-200);
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 300;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* Floating Card/Widget in Hero */
.hero-widget {
  justify-self: end;
  width: 100%;
  max-width: 380px;
}

.glass-widget {
  background: var(--glass-bg-dark);
  border: 1px solid var(--glass-border-dark);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  overflow: hidden;
}

.glass-widget::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(199, 90, 76, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.widget-title {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 12px;
}

.widget-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.widget-item:last-child {
  margin-bottom: 0;
}

.widget-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(199, 90, 76, 0.15);
  color: var(--accent);
  flex-shrink: 0;
}

.widget-info h4 {
  color: var(--white);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.widget-info p {
  color: var(--gray-200);
  font-size: 0.9rem;
}

/* ==========================================================================
   SECTION LE CONCEPT (INTERLOCUTEUR UNIQUE)
   ========================================================================== */
.concept-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.concept-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}

.concept-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.concept-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(34, 60, 91, 0.08);
  border-color: transparent;
}

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

.concept-icon-wrapper {
  width: 64px;
  height: 64px;
  background-color: var(--gray-50);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 28px;
  transition: all var(--transition-normal);
}

.concept-card:hover .concept-icon-wrapper {
  background-color: var(--primary);
  color: var(--white);
}

.concept-card h3 {
  font-size: 1.35rem;
  margin-bottom: 16px;
}

.concept-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================================================
   SECTION PRESTATIONS
   ========================================================================== */
.presta-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.presta-card {
  position: relative;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  z-index: 1;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.presta-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  transition: transform var(--transition-slow);
}

.presta-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.presta-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 20, 32, 0.9) 0%, rgba(10, 20, 32, 0.3) 60%, transparent 100%);
  z-index: 0;
}

.presta-body {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 40px;
  z-index: 2;
  color: var(--white);
  transition: transform var(--transition-normal);
}

.presta-card:hover .presta-img {
  transform: scale(1.08);
}

.presta-card:hover .presta-body {
  transform: translateY(-5px);
}

.presta-body h3 {
  color: var(--white);
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.presta-body p {
  color: var(--gray-200);
  font-size: 0.95rem;
  margin-bottom: 24px;
  opacity: 0.9;
  max-width: 480px;
}

/* ==========================================================================
   SECTION GALERIE 3D (ASYNCHRONOUS ASYMMETRIC MASONRY)
   ========================================================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 320px;
  cursor: pointer;
  z-index: 1;
}

/* Asymmetric grid positioning */
.gallery-item:nth-child(1) { grid-column: span 6; height: 380px; }
.gallery-item:nth-child(2) { grid-column: span 6; height: 380px; }
.gallery-item:nth-child(3) { grid-column: span 4; height: 320px; }
.gallery-item:nth-child(4) { grid-column: span 4; height: 320px; }
.gallery-item:nth-child(5) { grid-column: span 4; height: 320px; }
.gallery-item:nth-child(6) { grid-column: span 12; height: 420px; }

.gallery-media {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  transition: transform var(--transition-slow);
}

.gallery-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 20, 32, 0.8) 0%, rgba(10, 20, 32, 0.1) 80%, transparent 100%);
  opacity: 0.8;
  transition: opacity var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
  opacity: 0.95;
}

.gallery-item:hover .gallery-media {
  transform: scale(1.06);
}

.gallery-desc {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 30px;
  color: var(--white);
  transform: translateY(10px);
  opacity: 0;
  transition: all var(--transition-normal);
}

.gallery-item:hover .gallery-desc {
  transform: translateY(0);
  opacity: 1;
}

.gallery-desc span {
  color: var(--accent);
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}

.gallery-desc h3 {
  color: var(--white);
  font-size: 1.25rem;
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(10, 20, 32, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-content {
  position: relative;
  max-width: 90%;
  max-height: 80%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.lightbox.active .lightbox-content img {
  transform: scale(1);
}

.lightbox-caption {
  color: var(--white);
  font-family: var(--font-title);
  font-size: 1.2rem;
  margin-top: 20px;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 40px;
  right: 40px;
  color: var(--white);
  cursor: pointer;
  font-size: 2rem;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.lightbox-close:hover {
  opacity: 1;
}

/* ==========================================================================
   CHIFFRES CLÉS & CONFIANCE (RGE, QUALIBAT, DÉCENNALE)
   ========================================================================== */
.trust-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.stat-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 32px;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  text-align: center;
  transition: border var(--transition-normal);
}

.stat-box:hover {
  border-color: rgba(199, 90, 76, 0.3);
}

.stat-num {
  font-family: var(--font-title);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.95rem;
  font-weight: 500;
}

.trust-content h2 {
  margin-bottom: 24px;
}

.trust-content p {
  margin-bottom: 32px;
  font-size: 1.05rem;
  line-height: 1.7;
}

.certifs-row {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.certif-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.05);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.certif-badge svg {
  color: var(--accent);
}

.certif-badge span {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ==========================================================================
   PARTENAIRES (INFINITE LOGOS CAROUSEL)
   ========================================================================== */
.partners-slider {
  overflow: hidden;
  position: relative;
  padding: 40px 0;
  background: var(--white);
  border-top: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
}

.partners-slider::before, .partners-slider::after {
  content: '';
  position: absolute;
  top: 0;
  width: 150px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.partners-slider::before {
  left: 0;
  background: linear-gradient(to right, var(--white) 0%, transparent 100%);
}

.partners-slider::after {
  right: 0;
  background: linear-gradient(to left, var(--white) 0%, transparent 100%);
}

.partners-track {
  display: flex;
  gap: 60px;
  width: calc(240px * 16);
  animation: scrollLogos 25s linear infinite;
}

.partner-logo-wrapper {
  width: 180px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: grayscale(1);
  opacity: 0.5;
  transition: all var(--transition-normal);
}

.partner-logo-wrapper:hover {
  filter: grayscale(0);
  opacity: 1;
}

.partner-logo-wrapper img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

@keyframes scrollLogos {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-240px * 8)); }
}

/* ==========================================================================
   CTA PRE-FORM PORTAL (GLASSMORPHISM CARD)
   ========================================================================== */
.cta-section {
  padding-bottom: 120px;
}

.cta-box {
  background: var(--primary-dark);
  border-radius: var(--radius-lg);
  padding: 80px;
  position: relative;
  overflow: hidden;
  text-align: center;
  box-shadow: 0 40px 80px rgba(10, 20, 32, 0.15);
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(199, 90, 76, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.cta-box-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
}

.cta-box h2 {
  color: var(--white);
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 20px;
}

.cta-box p {
  color: var(--gray-200);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background-color: var(--primary-dark);
  color: var(--white);
  padding: 80px 0 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 24px;
  position: relative;
  display: inline-block;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--accent);
}

.footer-brand {
  margin-bottom: 20px;
}

.footer-logo {
  height: 48px;
  width: auto;
  margin-bottom: 16px;
}

.footer-col p {
  color: var(--gray-200);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--gray-200);
  font-size: 0.95rem;
}

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

.contact-info-list {
  list-style: none;
}

.contact-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--gray-200);
  font-size: 0.95rem;
}

.contact-info-list svg {
  color: var(--accent);
  margin-top: 4px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--gray-200);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a:hover {
  color: var(--accent);
}

/* ==========================================================================
   SCROLL-DRIVEN & REVEAL ANIMATIONS (PROGRESSIVE ENHANCEMENT)
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.reveal-active {
  opacity: 1;
  transform: translateY(0);
}

/* Native CSS Scroll-driven animations (when supported) */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: translateY(40px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .concept-card, .presta-card, .gallery-item, .stat-box {
      animation: fadeIn auto linear backwards;
      animation-timeline: view();
      animation-range: entry 10% entry 40%;
    }
  }
}

/* ==========================================================================
   RESPONSIVE DESIGN (MOBILE-FIRST OUTLINE)
   ========================================================================== */

/* Tablet & Smaller Desktops */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-text {
    margin: 0 auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-widget {
    justify-self: center;
    max-width: 480px;
  }
  
  .concept-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .presta-tabs {
    grid-template-columns: 1fr;
  }
  
  .gallery-item:nth-child(1) { grid-column: span 6; }
  .gallery-item:nth-child(2) { grid-column: span 6; }
  .gallery-item:nth-child(3) { grid-column: span 6; }
  .gallery-item:nth-child(4) { grid-column: span 6; }
  .gallery-item:nth-child(5) { grid-column: span 12; }
  
  .trust-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile & Small Tablets */
@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-dark);
    flex-direction: column;
    padding: 100px 40px 40px;
    gap: 24px;
    z-index: 99;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.3);
    transition: right var(--transition-normal);
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .nav-link {
    font-size: 1.15rem;
    display: block;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-cta {
    display: none; /* Hide top phone CTA on mobile, link is inside menu drawer or hero */
  }
  
  .concept-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .gallery-item {
    grid-column: span 12 !important;
    height: 280px !important;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .cta-box {
    padding: 40px 24px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
}

/* Small Mobiles */
@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .section-header {
    margin-bottom: 40px;
  }
  
  .lightbox-content img {
    max-height: 60vh;
  }
}

/* ==========================================================================
   SECTION REALISATIONS EXTRA ADDITIONS
   ========================================================================== */
.realisation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.realisation-card {
  position: relative;
  height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  z-index: 1;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
  cursor: pointer;
}

.realisation-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  transition: transform var(--transition-slow);
}

.realisation-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.realisation-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 20, 32, 0.95) 0%, rgba(10, 20, 32, 0.2) 65%, transparent 100%);
  z-index: 0;
  transition: background var(--transition-normal);
}

.realisation-card:hover .realisation-overlay {
  background: linear-gradient(to top, rgba(10, 20, 32, 0.98) 0%, rgba(10, 20, 32, 0.4) 65%, transparent 100%);
}

.realisation-body {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 30px;
  z-index: 2;
  color: var(--white);
  transition: transform var(--transition-normal);
}

.realisation-card:hover .realisation-img {
  transform: scale(1.08);
}

.realisation-card:hover .realisation-body {
  transform: translateY(-5px);
}

.realisation-body span {
  color: var(--accent);
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}

.realisation-body h3 {
  color: var(--white);
  font-size: 1.35rem;
  margin-bottom: 8px;
}

.realisation-body p {
  color: var(--gray-200);
  font-size: 0.85rem;
  line-height: 1.5;
  opacity: 0.85;
}

@media (max-width: 1024px) {
  .realisation-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .realisation-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .realisation-card {
    height: 320px;
  }
}