:root {
  --primary: #6366f1;
  --bg: #0f172a;
  --surface: #1e293b;
  --text: #f1f5f9;
  --muted: #94a3b8;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  padding-top: 60px;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.hero {
  padding: 10rem 0 6rem;
  text-align: center;
  background: linear-gradient(rgba(15, 23, 42, 0.7), rgba(15, 23, 42, 0.9)), url('hero-bg.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.hero h1 {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  padding: 4rem 0;
}
.card {
  background: var(--surface);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid rgba(255,255,255,0.1);
  transition: transform 0.3s ease;
}
.card:hover {
  transform: translateY(-5px);
}
.btn {
  display: inline-block;
  transition: all 0.3s ease;
  background: var(--primary);
  color: white;
  padding: 0.8rem 2rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  margin-top: 1rem;
}

.btn:hover {
  transform: scale(1.05);
  filter: brightness(1.2);
  box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

nav a {
  transition: color 0.3s ease;
  text-decoration: none;
}

nav a:hover {
  color: var(--primary) !important;
}

.card h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}