:root {
  --primary: #2563EB;
  --accent: #F59E0B;
  --dark: #0F172A;
  --light: #F8FAFC;
  --text: #1E293B;
  --muted: #64748B;
  --card-bg: #FFFFFF;
  --radius: 12px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--light);
  line-height: 1.6;
}

.nav {
  position: fixed; top: 0; left: 0; right: 0;
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 32px;
  background: rgba(15,23,42,0.85);
  backdrop-filter: blur(8px);
  z-index: 100;
}

.logo { font-size: 1.25rem; font-weight: 700; color: #fff; }
.nav-cta { color: var(--accent); text-decoration: none; font-weight: 600; font-size: 0.9rem; }

.hero {
  display: flex; flex-direction: column; min-height: 100vh;
  background: linear-gradient(135deg, var(--dark) 0%, #1e3a5f 100%);
  color: #fff; text-align: center;
}

.hero-content {
  flex: 1; display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  padding: 120px 24px 80px;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800; letter-spacing: -0.02em; margin-bottom: 16px;
}

.slogan {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: rgba(255,255,255,0.8); max-width: 600px; margin-bottom: 32px;
}

.btn {
  display: inline-block; padding: 12px 28px;
  border: 2px solid rgba(255,255,255,0.3); border-radius: var(--radius);
  color: #fff; text-decoration: none; font-weight: 600; transition: all 0.2s;
}
.btn:hover { border-color: #fff; background: rgba(255,255,255,0.1); }

.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: #1d4ed8; border-color: #1d4ed8; }

.features { padding: 80px 24px; max-width: 960px; margin: 0 auto; text-align: center; }
.features h2 { font-size: 1.75rem; margin-bottom: 48px; color: var(--dark); }

.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px;
}

.card {
  background: var(--card-bg); border: 1px solid #e2e8f0; border-radius: var(--radius);
  padding: 32px 24px; text-align: left;
  transition: transform 0.2s, box-shadow 0.2s;
  opacity: 0; transform: translateY(24px);
}
.card.visible { opacity: 1; transform: translateY(0); }
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }

.card-icon { font-size: 2rem; margin-bottom: 12px; }
.card h3 { font-size: 1.2rem; margin-bottom: 8px; color: var(--dark); }
.card p { color: var(--muted); font-size: 0.95rem; }

.contact {
  padding: 80px 24px; text-align: center;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
}
.contact h2 { font-size: 1.75rem; margin-bottom: 12px; color: var(--dark); }
.contact p { color: var(--muted); margin-bottom: 24px; }

footer {
  text-align: center; padding: 24px; font-size: 0.85rem;
  color: var(--muted); border-top: 1px solid #e2e8f0;
}

@media (max-width: 600px) {
  .nav { padding: 12px 16px; }
  .hero-content { padding: 100px 16px 60px; }
}