/* ==========================================================================
   SecureShare - Showcase & Landing Page Design System
   Modern, enterprise-grade, responsive, dark/light theme, 3D card effects.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & Variables
   -------------------------------------------------------------------------- */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Roboto Mono', Menlo, monospace;

  /* Palette Mode Clair */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f1f5f9;
  --bg-surface-high: #e2e8f0;
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-card-border: rgba(226, 232, 240, 0.9);
  --bg-input: #ffffff;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --color-accent: #16a34a;
  --color-accent-hover: #15803d;
  --color-accent-dark: #ffffff;
  --color-accent-subtle: rgba(22, 163, 74, 0.12);
  --color-accent-glow: rgba(22, 163, 74, 0.25);
  
  --color-cyan: #0284c7;
  --color-cyan-subtle: rgba(2, 132, 199, 0.12);
  
  --color-danger: #dc2626;
  --color-danger-subtle: rgba(220, 38, 38, 0.1);

  --border-line: #e2e8f0;
  --border-line-subtle: #f1f5f9;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 24px var(--color-accent-glow);

  --header-bg: rgba(248, 250, 252, 0.85);
}

.dark {
  /* Palette Mode Sombre */
  --bg-page: #0a0f12;
  --bg-surface: #121a1f;
  --bg-surface-hover: #1a252c;
  --bg-surface-high: #202e37;
  --bg-card: rgba(18, 26, 31, 0.82);
  --bg-card-border: rgba(41, 59, 65, 0.7);
  --bg-input: #0e1519;

  --text-primary: #edf4f1;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  --color-accent: #b3f474;
  --color-accent-hover: #9ee05e;
  --color-accent-dark: #0f1715;
  --color-accent-subtle: rgba(179, 244, 116, 0.12);
  --color-accent-glow: rgba(179, 244, 116, 0.35);

  --color-cyan: #38bdf8;
  --color-cyan-subtle: rgba(56, 189, 248, 0.15);

  --color-danger: #ff8b7b;
  --color-danger-subtle: rgba(255, 139, 123, 0.15);

  --border-line: #24353c;
  --border-line-subtle: #19272d;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.65);
  --shadow-glow: 0 0 28px var(--color-accent-glow);

  --header-bg: rgba(10, 15, 18, 0.82);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
  position: relative;
  min-height: 100vh;
}

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

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

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.85;
}

.site-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: 100%;
}

main {
  width: 100%;
  flex: 1 0 auto;
}

/* --------------------------------------------------------------------------
   3. Layout & Containers
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --------------------------------------------------------------------------
   4. Header & Navigation Bar
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-line);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg-surface);
  border: 1.5px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 1.25rem;
  box-shadow: 0 0 12px var(--color-accent-subtle);
}

.brand-name span {
  color: var(--color-accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.svg-icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
  stroke: currentColor;
}

.icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Bouton Theme Switcher */
.theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 12px;
  border: 1px solid var(--border-line);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.theme-btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--color-accent);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  background: var(--color-accent);
  color: var(--color-accent-dark);
  font-weight: 600;
  font-size: 0.92rem;
  transition: all 0.2s ease;
  box-shadow: 0 2px 10px var(--color-accent-subtle);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--color-accent-glow);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-line);
  font-weight: 600;
  font-size: 0.92rem;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: var(--bg-surface-hover);
  border-color: var(--color-accent);
}

/* Bouton Hamburger Mobile */
.mobile-toggle-btn {
  display: none;
  font-size: 1.4rem;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-line);
  background: var(--bg-surface);
  color: var(--text-primary);
}

/* Mobile Drawer */
.mobile-drawer {
  display: none;
}

/* --------------------------------------------------------------------------
   5. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 80px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 50px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.6); opacity: 0.4; }
  100% { transform: scale(1); opacity: 1; }
}

.hero-title {
  font-size: 3.4rem;
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
  color: var(--text-primary);
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-line);
  padding-top: 24px;
}

.hero-badge-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-badge-item span:first-child {
  color: var(--color-accent);
}

/* Hero 3D Vault Container */
.hero-vault-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 28px;
  padding: 30px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.vault-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.vault-status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--color-accent);
}

#vault-3d-canvas {
  width: 100%;
  height: 320px;
  cursor: grab;
  touch-action: none;
}

#vault-3d-canvas:active {
  cursor: grabbing;
}

.vault-caption {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* --------------------------------------------------------------------------
   6. 3D Card Tilt Styles & Highlights
   -------------------------------------------------------------------------- */
.card-3d {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
  overflow: hidden;
}

.card-3d:hover {
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: var(--color-accent);
}

.card-glare {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 5;
}

/* --------------------------------------------------------------------------
   7. Section Headers
   -------------------------------------------------------------------------- */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.6rem;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.section-description {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   8. Security Pillars Grid
   -------------------------------------------------------------------------- */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pillar-icon-box {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--color-accent);
}

.pillar-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.pillar-desc {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.pillar-badge {
  margin-top: 18px;
  display: inline-block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--color-cyan);
  background: var(--color-cyan-subtle);
  padding: 4px 10px;
  border-radius: 6px;
}

/* --------------------------------------------------------------------------
   9. Pipeline / How it Works Section
   -------------------------------------------------------------------------- */
.pipeline-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 24px;
  padding: 34px;
  position: relative;
  display: flex;
  flex-direction: column;
}

.step-number-badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--bg-surface);
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  font-weight: 800;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  box-shadow: 0 0 16px var(--color-accent-subtle);
}

.step-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.step-desc {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 20px;
  flex: 1;
}

.step-code-preview {
  background: var(--bg-input);
  border: 1px solid var(--border-line);
  border-radius: 12px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-accent);
  overflow-x: auto;
}

/* --------------------------------------------------------------------------
   10. Interactive Live Security Simulator
   -------------------------------------------------------------------------- */
.simulator-box {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 28px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.sim-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.sim-column-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.sim-terminal {
  background: var(--bg-input);
  border: 1px solid var(--border-line);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
}

.sim-field-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: block;
}

.sim-code-display {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  padding: 8px 0 14px;
}

.sim-hash-display {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  word-break: break-all;
  line-height: 1.5;
  background: var(--bg-surface);
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-line-subtle);
}

.sim-status-row {
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
}

.status-badge {
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.72rem;
}

.status-active {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.sim-actions {
  display: flex;
  gap: 12px;
}

/* Simulateur Récepteur */
.sim-input-group {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
}

.sim-text-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-line);
  border-radius: 12px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: border-color 0.2s ease;
}

.sim-text-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.result-box {
  border-radius: 14px;
  padding: 18px;
  display: flex;
  gap: 14px;
  font-size: 0.88rem;
  animation: fadeIn 0.3s ease;
}

.result-success {
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-accent);
  color: var(--text-primary);
}

.result-success .result-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
}

.result-error {
  background: var(--color-danger-subtle);
  border: 1px solid var(--color-danger);
  color: var(--text-primary);
}

.result-error .result-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-danger);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
}

.hash-preview {
  font-family: var(--font-mono);
  color: var(--color-accent);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   11. Comparison Table
   -------------------------------------------------------------------------- */
.comparison-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 28px;
  padding: 36px;
  box-shadow: var(--shadow-md);
  overflow-x: auto;
}

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

.comparison-table th {
  padding: 16px 20px;
  font-weight: 700;
  border-bottom: 2px solid var(--border-line);
  color: var(--text-primary);
}

.comparison-table th.col-highlight {
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border-radius: 12px 12px 0 0;
}

.comparison-table td {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-line);
  color: var(--text-secondary);
}

.comparison-table td.col-highlight {
  background: var(--color-accent-subtle);
  font-weight: 600;
  color: var(--text-primary);
}

.check-green {
  color: var(--color-accent);
  font-weight: bold;
  margin-right: 6px;
}

.cross-red {
  color: var(--color-danger);
  font-weight: bold;
  margin-right: 6px;
}

/* --------------------------------------------------------------------------
   12. FAQ Accordion
   -------------------------------------------------------------------------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 18px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-item.open {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  padding: 22px 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
}

.faq-icon {
  font-size: 1.25rem;
  transition: transform 0.3s ease;
  color: var(--color-accent);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 26px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.faq-item.open .faq-answer {
  max-height: 250px;
  padding: 0 26px 22px;
}

/* --------------------------------------------------------------------------
   13. Final CTA Banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-surface-high) 100%);
  border: 1px solid var(--border-line);
  border-radius: 32px;
  padding: 70px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-accent-subtle) 0%, transparent 70%);
  pointer-events: none;
}

.cta-title {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
  color: var(--text-primary);
}

.cta-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 36px;
}

/* --------------------------------------------------------------------------
   14. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  width: 100%;
  border-top: 1px solid var(--border-line);
  padding: 60px 0 30px;
  background: var(--bg-surface);
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  margin-top: 14px;
  line-height: 1.6;
  max-width: 320px;
  color: var(--text-muted);
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-line);
  padding-top: 25px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   15. Reveal Animation on Scroll
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* --------------------------------------------------------------------------
   16. Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-badges-row {
    justify-content: center;
  }

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

  .pipeline-steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .sim-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .main-nav, .header-actions .btn-text {
    display: none;
  }

  .mobile-toggle-btn {
    display: block;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .cta-title {
    font-size: 2.1rem;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* Mobile Drawer */
  .mobile-drawer {
    display: block;
    position: fixed;
    top: 74px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-line);
    padding: 30px 24px;
    z-index: 99;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  }

  .mobile-drawer.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
  }

  .mobile-nav-link {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
  }
}

/* Accessibilité : réduction de mouvement */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .card-3d:hover {
    transform: none !important;
  }
}