*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: #1E293B; background: #F8FAFC; line-height: 1.6;
}

/* Nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 2rem; background: rgba(15,23,42,0.85);
  backdrop-filter: blur(10px);
}
.nav-brand { font-size: 1.25rem; font-weight: 700; color: #F1F5F9; letter-spacing: -0.02em; }
.nav-cta {
  padding: 0.5rem 1.25rem; background: #F59E0B; color: #0F172A;
  border-radius: 6px; text-decoration: none; font-weight: 600;
  font-size: 0.875rem; transition: background 0.2s;
}
.nav-cta:hover { background: #FBBF24; }

/* Hero */
.hero {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 50%, #312E81 100%);
  text-align: center; padding: 2rem;
}
.hero-content { max-width: 640px; }
.hero-title {
  font-size: clamp(3rem,8vw,5rem); font-weight: 800; color: #F8FAFC;
  letter-spacing: -0.03em; margin-bottom: 0.5rem;
}
.hero-title span { color: #F59E0B; }
.hero-slogan { font-size: clamp(1rem,2.5vw,1.35rem); color: #CBD5E1; margin-bottom: 2rem; }
.hero-btn {
  display: inline-block; padding: 0.875rem 2rem;
  background: #4F46E5; color: #F8FAFC; border-radius: 8px;
  text-decoration: none; font-weight: 600; font-size: 1rem;
  transition: background 0.2s, transform 0.15s;
}
.hero-btn:hover { background: #6366F1; transform: translateY(-2px); }

/* Features */
.features { padding: 5rem 2rem; max-width: 960px; margin: 0 auto; }
.section-title { text-align: center; font-size: 2rem; font-weight: 700; margin-bottom: 3rem; color: #1E1B4B; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap: 2rem; }
.card {
  background: #fff; border: 1px solid #E2E8F0; border-radius: 12px;
  padding: 2rem; transition: transform 0.25s, box-shadow 0.25s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(15,23,42,0.1); }
.card-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.5rem; color: #1E1B4B; }
.card p { color: #64748B; font-size: 0.95rem; }

/* CTA */
.cta {
  padding: 5rem 2rem; text-align: center;
  background: linear-gradient(135deg, #1E1B4B, #312E81); color: #F1F5F9;
}
.cta-title { font-size: 2rem; font-weight: 700; margin-bottom: 0.75rem; }
.cta-text { margin-bottom: 2rem; color: #CBD5E1; }
.cta-form { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.cta-input {
  padding: 0.75rem 1rem; border-radius: 8px;
  border: 2px solid #4F46E5; background: rgba(255,255,255,0.08);
  color: #F1F5F9; font-size: 1rem; min-width: 260px; outline: none;
  transition: border-color 0.2s;
}
.cta-input::placeholder { color: #94A3B8; }
.cta-input:focus { border-color: #F59E0B; }
.cta-btn {
  padding: 0.75rem 1.5rem; background: #F59E0B; color: #0F172A;
  border: none; border-radius: 8px; font-weight: 700; font-size: 1rem;
  cursor: pointer; transition: background 0.2s, transform 0.15s;
}
.cta-btn:hover { background: #FBBF24; transform: translateY(-2px); }

/* Footer */
.footer { text-align: center; padding: 1.5rem; background: #0F172A; color: #64748B; font-size: 0.85rem; }

/* Reveal animation */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-reveal].revealed { opacity: 1; transform: translateY(0); }