:root {
  --bg: #f8fafc;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 250, 252, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.topbar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.brand {
  font-weight: 800;
}

nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
}

.button-link {
  background: var(--text);
  color: #fff;
  padding: 8px 12px;
  border-radius: 10px;
}

.hero {
  padding: 64px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}

.eyebrow {
  color: var(--primary-dark);
  font-weight: 700;
  margin: 0 0 8px;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.08;
}

.subtitle {
  color: var(--muted);
  margin-top: 14px;
  max-width: 60ch;
}

.hero-actions {
  margin-top: 20px;
  display: flex;
  gap: 10px;
}

.btn {
  text-decoration: none;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 600;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

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

.btn-ghost {
  border: 1px solid var(--line);
  color: var(--text);
  background: #fff;
}

.hero-card,
.card,
.codeblock {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}

.hero-card h3 {
  margin-top: 0;
}

.hero-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.section {
  padding: 32px 0;
}

.section-muted {
  background: #f1f5f9;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

h2 {
  margin: 0 0 14px;
}

.cards {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card h3 {
  margin: 0 0 6px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.steps {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.codeblock pre {
  margin: 0;
  overflow-x: auto;
  font-size: 0.92rem;
}

footer {
  border-top: 1px solid var(--line);
  background: #fff;
  margin-top: 24px;
}

.footer-content {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
}

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