:root {
  --bg-dark: #07090e;
  --bg-surface: #0e131f;
  --bg-card: rgba(14, 19, 31, 0.85);
  --bg-card-hover: rgba(22, 30, 48, 0.95);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;

  /* Couleurs Réseaux & Canaux */
  --color-meta: #0668E1;
  --color-instagram: #E1306C;
  --color-tiktok: #00F2FE;
  --color-whatsapp: #25D366;
  --color-telegram: #229ED9;
  --color-google: #4285F4;
  --color-linkedin: #0A66C2;
  --color-sms: #F59E0B;

  /* Accents Dôme Hub */
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-amber: #f59e0b;
  --accent-emerald: #10b981;
  --accent-purple: #8b5cf6;
  --accent-rose: #f43f5e;

  /* Typographie & Textes */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Plus Jakarta Sans', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;

  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.12) 0px, transparent 45%),
    radial-gradient(at 100% 0%, rgba(6, 182, 212, 0.08) 0px, transparent 40%),
    radial-gradient(at 50% 100%, rgba(139, 92, 246, 0.08) 0px, transparent 50%),
    radial-gradient(at 0% 100%, rgba(16, 185, 129, 0.05) 0px, transparent 40%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Glassmorphism System */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
  transition: all var(--transition-smooth);
}

.glass-card:hover {
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 15px 35px -10px rgba(59, 130, 246, 0.15);
}

/* Header Bar */
.header-container {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 14, 0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #3b82f6, #06b6d4);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.35);
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-title-badge {
  font-size: 0.68rem;
  font-weight: 700;
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-cyan);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  border: 1px solid rgba(6, 182, 212, 0.3);
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: color var(--transition-fast);
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

/* Mobile Hamburger Toggle Button */
.mobile-menu-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-blue);
}

/* Mobile Dropdown Menu */
.mobile-dropdown {
  display: none;
  background: rgba(7, 9, 14, 0.98);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1rem 1.5rem 1.5rem;
}

.mobile-dropdown.open {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  animation: slideDown 0.25s ease-out;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: all var(--transition-fast);
}

.mobile-nav-item:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.3);
  color: var(--accent-blue);
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 0.35rem 0.85rem;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-emerald);
}

.status-indicator {
  width: 7px;
  height: 7px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Buttons */
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.15rem;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 10px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.05rem;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Main Layout */
.main-container {
  max-width: 1400px;
  margin: 1.75rem auto;
  padding: 0 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Hero Section */
.hero-banner {
  padding: 2.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(6, 182, 212, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  border: 1px solid rgba(6, 182, 212, 0.2);
  margin-bottom: 0.6rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

/* Metrics Top Bar */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.metric-card {
  padding: 1.35rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.metric-val {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 800;
  color: #fff;
}

.metric-trend {
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.trend-up { color: var(--accent-emerald); }
.trend-cyan { color: var(--accent-cyan); }
.trend-amber { color: var(--accent-amber); }

/* Connecteurs Réseaux Sociaux & Canaux (Cross-Social Grid) */
.channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
}

.channel-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: 16px;
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
}

.channel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.channel-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.channel-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #fff;
}

.channel-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

.channel-type {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.channel-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  text-transform: uppercase;
}

.badge-connected {
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-ready {
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-standby {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.channel-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  padding: 0.85rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 10px;
  margin-bottom: 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.c-stat-col {
  display: flex;
  flex-direction: column;
}

.c-stat-lbl {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

.c-stat-val {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
}

.channel-capabilities {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.cap-tag {
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 6px;
  color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Sélecteur de Campagnes Métiers Dôme */
.site-target-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.site-card-target {
  padding: 1.25rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.site-card-target.active,
.site-card-target:hover {
  background: rgba(59, 130, 246, 0.08);
  border-color: var(--accent-blue);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.2);
}

.site-target-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.site-target-icon {
  font-size: 1.5rem;
}

.site-target-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.site-target-url {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

/* Module Créateur de Campagnes & IA Copywriting */
.campaign-studio-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
}

.studio-form {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  color: #fff;
  font-family: inherit;
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.25);
}

/* Aperçu du rendu Live Ad Preview */
.ad-preview-box {
  background: #000;
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ad-preview-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ad-preview-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #222;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.ad-preview-author {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
}

.ad-preview-sponsored {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.ad-preview-body {
  font-size: 0.85rem;
  color: #e2e8f0;
  line-height: 1.5;
}

.ad-preview-media {
  width: 100%;
  height: 180px;
  border-radius: 10px;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  gap: 0.5rem;
}

.ad-preview-cta {
  padding: 0.65rem 1rem;
  background: var(--accent-blue);
  color: #fff;
  text-align: center;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
}

/* Filtres & Carrousel Style Shadcn */
.filter-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.tab-btn {
  padding: 0.45rem 0.95rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  color: #94a3b8;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.tab-btn.active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.2);
}

/* PowerBI Charts Grid & Container */
.bi-charts-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  width: 100%;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chart-canvas-wrapper {
  height: 280px;
  position: relative;
  width: 100%;
}

/* Responsive */
@media (max-width: 1024px) {
  .metrics-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .site-target-selector {
    grid-template-columns: 1fr;
  }
  .campaign-studio-grid {
    grid-template-columns: 1fr;
  }
  .bi-charts-grid {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none !important;
  }
  .mobile-menu-toggle {
    display: flex !important;
  }
  .hero-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.5rem 1.25rem;
  }
  .metrics-row {
    grid-template-columns: 1fr;
  }
  .channels-grid {
    grid-template-columns: 1fr;
  }
  .bi-charts-grid {
    grid-template-columns: 1fr !important;
    gap: 1.25rem;
  }
  .chart-canvas-wrapper {
    height: 240px !important;
  }
  .chart-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }
  .chart-header .badge-tag {
    align-self: flex-start;
  }
}