:root {
  --bg: #0f172a;
  --bg-alt: #f8fafc;
  --text: #0f172a;
  --text-light: #e2e8f0;
  --muted: #94a3b8;
  --card: #ffffff;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --border: #e2e8f0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: #ffffff;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.hero {
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: var(--text-light);
  padding: 28px 0 90px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 72px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.hero-content {
  max-width: 760px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  color: #93c5fd;
  margin-bottom: 18px;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 1.1;
  margin: 0 0 20px;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  line-height: 1.2;
  margin-top: 0;
}

h3 {
  margin-top: 0;
  margin-bottom: 12px;
}

.subhead {
  font-size: 1.15rem;
  color: #cbd5e1;
  max-width: 680px;
  margin-bottom: 30px;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  padding: 14px 22px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  transition: 0.2s ease;
}

.btn:hover {
  background: var(--accent-dark);
}

.btn-secondary {
  background: transparent;
  border: 1px solid #64748b;
}

.btn-secondary:hover,
.btn-outline:hover {
  background: rgba(255,255,255,0.08);
}

.btn-outline {
  background: transparent;
  border: 1px solid #475569;
}

.section {
  padding: 80px 0;
}

.alt {
  background: var(--bg-alt);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 32px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.05);
}

.two-col {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  align-items: center;
}

.feature-box {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.05);
}

.feature-box ul {
  margin: 0;
  padding-left: 20px;
}

.cta {
  text-align: center;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  color: #64748b;
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .grid,
  .two-col {
    grid-template-columns: 1fr;
  }

  .topbar {
    margin-bottom: 48px;
  }

  .section {
    padding: 60px 0;
  }
}