/* ==========================================================================
   GEOTECH SA - MODERN DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

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

:root {
  /* Color Palette */
  --primary-dark: #0A192F;
  --primary-navy: #002B49;
  --primary-blue: #1E40AF;
  --accent-gold: #FF9900;
  --accent-gold-hover: #E08700;
  --accent-amber: #D4AF37;
  --accent-blue-light: #3B82F6;
  
  --bg-light: #F8FAFC;
  --bg-white: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-dark: #0F172A;
  --bg-dark-card: #1E293B;

  --text-main: #0F172A;
  --text-muted: #475569;
  --text-light: #94A3B8;
  --text-white: #FFFFFF;

  --border-color: #E2E8F0;
  --border-focus: #3B82F6;

  /* Fonts */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Transitions & Shadows */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --shadow-glow: 0 0 20px rgba(255, 153, 0, 0.3);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --max-width: 1240px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary-navy);
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   TOPBAR & HEADER NAVIGATION
   ========================================================================== */

.topbar {
  background-color: var(--primary-dark);
  color: var(--text-light);
  font-size: 0.875rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.topbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.topbar-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.topbar-info-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #CBD5E1;
}

.topbar-info-item svg {
  width: 16px;
  height: 16px;
  fill: var(--accent-gold);
}

.topbar-certif-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 153, 0, 0.15);
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.topbar-certif-badge:hover {
  background: var(--accent-gold);
  color: var(--primary-dark);
}

/* Main Header */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-shrink: 0;
}

.brand-logo img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.brand-title {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-navy);
  letter-spacing: -0.5px;
  line-height: 1;
}

.brand-subtitle {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: nowrap;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary-navy);
  position: relative;
  padding: 0.5rem 0;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--accent-gold);
  border-radius: 2px;
  transition: var(--transition);
}

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

.nav-link.active {
  color: var(--accent-gold);
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--primary-navy);
  color: var(--text-white);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
  white-space: nowrap;
}
  transition: var(--transition);
}

.nav-cta-btn:hover {
  background: var(--accent-gold);
  color: var(--primary-dark);
  box-shadow: var(--shadow-glow);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--primary-navy);
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1.85rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--accent-gold);
  color: var(--primary-dark);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--accent-gold-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: var(--primary-navy);
  color: var(--text-white);
}

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

.btn-outline {
  background: transparent;
  border-color: var(--primary-navy);
  color: var(--primary-navy);
}

.btn-outline:hover {
  background: var(--primary-navy);
  color: var(--text-white);
}

.btn-outline-gold {
  background: transparent;
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.btn-outline-gold:hover {
  background: var(--accent-gold);
  color: var(--primary-dark);
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-gold {
  background: rgba(255, 153, 0, 0.15);
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
}

.badge-navy {
  background: rgba(0, 43, 73, 0.1);
  color: var(--primary-navy);
  border: 1px solid rgba(0, 43, 73, 0.2);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero {
  position: relative;
  background: linear-gradient(135deg, #0A192F 0%, #002B49 60%, #1E3A8A 100%);
  color: var(--text-white);
  padding: 5rem 0 6rem 0;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 153, 0, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.25rem;
  font-weight: 800;
  color: var(--text-white);
  margin: 1.25rem 0;
  line-height: 1.15;
  letter-spacing: -1px;
}

.hero-content h1 span {
  color: var(--accent-gold);
  background: linear-gradient(120deg, #FF9900, #F59E0B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: #CBD5E1;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-card-showcase {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-xl);
}

.hero-certif-preview {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--accent-gold);
  cursor: pointer;
}

.hero-certif-preview img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: var(--transition);
}

.hero-certif-preview:hover img {
  transform: scale(1.04);
}

.hero-certif-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 25, 47, 0.9), transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.25rem;
  color: var(--text-white);
}

.hero-certif-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.hero-certif-sub {
  font-size: 0.85rem;
  color: #E2E8F0;
}

/* Stats Counter Bar */
.stats-bar {
  background: var(--bg-white);
  margin-top: -3rem;
  position: relative;
  z-index: 10;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 2rem;
  border: 1px solid var(--border-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item {
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -1rem;
  top: 15%;
  height: 70%;
  width: 1px;
  background: var(--border-color);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--primary-navy);
  line-height: 1;
}

.stat-number span {
  color: var(--accent-gold);
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ==========================================================================
   SECTIONS & TYPOGRAPHY
   ========================================================================== */

.section {
  padding: 5rem 0;
}

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

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

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

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-subtitle {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.35rem;
  color: var(--primary-navy);
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

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

.section-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.section-bg-dark .section-description {
  color: #94A3B8;
}

/* ==========================================================================
   CARDS & GRID LAYOUTS
   ========================================================================== */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 2rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(30, 64, 175, 0.3);
}

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: rgba(0, 43, 73, 0.06);
  color: var(--primary-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.card:hover .card-icon {
  background: var(--accent-gold);
  color: var(--primary-dark);
}

.card-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.card-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary-navy);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.card-link:hover {
  color: var(--accent-gold);
  gap: 0.75rem;
}

/* Feature Showcase Box */
.feature-box {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 3rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   CERTIFICATION & QUALITY SECTION
   ========================================================================== */

.certif-banner {
  background: linear-gradient(135deg, #002B49 0%, #0A192F 100%);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  color: var(--text-white);
  box-shadow: var(--shadow-xl);
  border: 2px solid var(--accent-gold);
  position: relative;
  overflow: hidden;
}

.certif-banner-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.certif-badge-header {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 153, 0, 0.2);
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  padding: 0.4rem 1.2rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.certif-banner h2 {
  color: var(--text-white);
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.certif-banner p {
  color: #CBD5E1;
  font-size: 1.05rem;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.certif-img-wrapper {
  background: var(--bg-white);
  padding: 0.75rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.certif-img-wrapper:hover {
  transform: scale(1.02);
}

.certif-img-wrapper img {
  width: 100%;
  border-radius: var(--radius-sm);
  max-height: 360px;
  object-fit: contain;
}

.certif-click-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--primary-navy);
  font-size: 0.85rem;
  font-weight: 700;
  margin-top: 0.5rem;
}

/* ==========================================================================
   TABS & FILTERABLE GALLERY
   ========================================================================== */

.filter-nav {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-full);
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-navy);
  color: var(--text-white);
  border-color: var(--primary-navy);
  box-shadow: var(--shadow-md);
}

.project-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.project-thumb {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.project-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(10, 25, 47, 0.85);
  color: var(--accent-gold);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  backdrop-filter: blur(4px);
}

.project-body {
  padding: 1.5rem;
}

.project-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.project-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

/* ==========================================================================
   EQUIPMENT TABLE & TABS
   ========================================================================== */

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-white);
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.custom-table th {
  background: var(--primary-navy);
  color: var(--text-white);
  font-family: var(--font-heading);
  font-weight: 600;
  padding: 1rem 1.25rem;
}

.custom-table td {
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
}

.custom-table tr:hover {
  background-color: #F1F5F9;
}

.badge-status {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  background: #DEF7EC;
  color: #03543F;
}

/* ==========================================================================
   CONTACT FORM & MODAL
   ========================================================================== */

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--primary-navy);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

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

/* Modal Lightbox */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

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

.modal-content {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-xl);
  padding: 2rem;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-light);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary-navy);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  background-color: var(--bg-dark);
  color: #94A3B8;
  padding: 4.5rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-brand .brand-name {
  color: var(--text-white);
}

.footer-title {
  color: var(--text-white);
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 35px;
  height: 2.5px;
  background: var(--accent-gold);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: #94A3B8;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-link:hover {
  color: var(--accent-gold);
  transform: translateX(4px);
}

.footer-contact-item {
  display: flex;
  gap: 0.85rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.footer-contact-item svg {
  width: 20px;
  height: 20px;
  fill: var(--accent-gold);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 1200px) {
  .nav-links {
    gap: 0.85rem;
  }

  .nav-link {
    font-size: 0.85rem;
  }

  .nav-cta-btn {
    padding: 0.55rem 1rem;
    font-size: 0.825rem;
  }
}

@media (max-width: 1024px) {
  .topbar {
    display: none;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--bg-white);
    flex-direction: column;
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    transform: translateY(-150%);
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
    gap: 1.25rem;
    z-index: 999;
  }

  .nav-links.active {
    transform: translateY(0);
  }

  .mobile-toggle {
    display: block;
  }

  .hero-grid, .certif-banner-grid {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .stat-item:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.25rem;
  }

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

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

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