:root {
  --bg: #0a0a0f;
  --card: #16161f;
  --accent: #6c5ce7;
  --accent2: #a29bfe;
  --text: #e0e0e0;
  --muted: #888;
  --border: #252530;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(108,92,231,0.12);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

header {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,10,15,0.85);
}

header .container {
  display: flex; justify-content: space-between; align-items: center;
}

.logo {
  font-size: 1.5rem; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; text-decoration: none;
}

.hero {
  padding: 80px 0 60px; text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  background: linear-gradient(135deg, #fff, var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 16px;
}

.hero p {
  font-size: 1.15rem; color: var(--muted); max-width: 600px; margin: 0 auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; padding: 40px 0 80px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-decoration: none; color: var(--text);
  transition: all 0.25s ease;
  position: relative; overflow: hidden;
}

.card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0; transition: opacity 0.25s;
}

.card:hover::before { opacity: 1; }

.card-icon { font-size: 2rem; margin-bottom: 12px; }

.card h3 { font-size: 1.2rem; margin-bottom: 8px; }

.card p { font-size: 0.9rem; color: var(--muted); line-height: 1.5; }

.card .tag {
  display: inline-block; margin-top: 12px;
  font-size: 0.75rem; padding: 4px 10px;
  background: rgba(108,92,231,0.15); color: var(--accent2);
  border-radius: 20px;
}

footer {
  text-align: center; padding: 40px 0;
  color: var(--muted); font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* Sous-pages */
.subpage { padding: 60px 0 40px; }

.subpage h1 {
  font-size: 2.2rem; margin-bottom: 8px;
}

.subpage .subtitle { color: var(--accent2); margin-bottom: 32px; }

.subpage h2 { margin: 32px 0 12px; font-size: 1.3rem; }

.subpage ul { list-style: none; padding: 0; }

.subpage ul li {
  padding: 10px 0; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 12px;
}

.subpage ul li::before {
  content: '▸'; color: var(--accent); font-size: 0.8rem;
}

.back-link {
  display: inline-block; margin-top: 32px; padding: 10px 20px;
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--muted); text-decoration: none; transition: all 0.2s;
}

.back-link:hover { border-color: var(--accent); color: var(--text); }

.badge {
  display: inline-block; padding: 4px 12px;
  border-radius: 20px; font-size: 0.78rem; font-weight: 600;
}

.badge-ready { background: rgba(0,200,100,0.15); color: #4ade80; }
.badge-soon { background: rgba(234,179,8,0.15); color: #facc15; }

@media (max-width: 600px) {
  .hero { padding: 50px 0 30px; }
  .grid { grid-template-columns: 1fr; gap: 14px; }
  .card { padding: 20px; }
}