:root {
  --bg: #0e1726;
  --bg-raised: #16233a;
  --text: #e6ecf5;
  --muted: #9fb0c8;
  --accent: #ffd54a;
  --line: #243653;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--accent);
}

.container {
  max-width: 70rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

.brand img {
  width: 1.5rem;
  height: 1.5rem;
  margin-right: 0.6rem;
}

.brand .dot {
  color: var(--accent);
}

.site-header nav a {
  margin-left: 1.5rem;
  color: var(--muted);
  text-decoration: none;
}

.site-header nav a:hover {
  color: var(--text);
}

.hero {
  padding: 3rem 0 4.5rem;
  background: radial-gradient(ellipse at 75% 40%, #1b2f52 0%, var(--bg) 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: 3.2rem;
  line-height: 1.1;
}

.accent {
  color: var(--accent);
}

.lead {
  margin: 0 0 2rem;
  font-size: 1.15rem;
  color: var(--muted);
}

.button {
  display: inline-block;
  margin-right: 0.75rem;
  padding: 0.65rem 1.5rem;
  border: 1px solid var(--muted);
  border-radius: 0.3rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.button:hover {
  border-color: var(--text);
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #1b1b1b;
}

.button.primary:hover {
  background: #ffe07a;
}

.hero-visual {
  position: relative;
  height: 28rem;
}

.paper {
  position: absolute;
  top: 0;
  left: 0;
  width: 78%;
  height: 24rem;
  margin: 0;
  overflow: hidden;
  border-radius: 0.4rem;
  background: #fff;
  box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.45);
  transform: rotate(-2deg);
}

.paper img {
  display: block;
  width: 100%;
}

.code {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 78%;
  margin: 0;
  padding: 1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: rgba(14, 23, 38, 0.94);
  box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.5);
  font: 0.78rem/1.55 Consolas, "Courier New", monospace;
  color: var(--text);
  overflow: hidden;
  transform: rotate(1.5deg);
}

.code .c {
  color: #6b7f9e;
}

.code .k {
  color: var(--accent);
}

.code .s {
  color: #8fd4b0;
}

.features {
  padding: 3.5rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-raised);
}

.columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 2.5rem;
}

.number {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}

.features h2 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

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

.documentation {
  padding: 3.5rem 0;
}

.documentation h2 {
  margin: 0 0 1.5rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
}

.card {
  display: block;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: var(--bg-raised);
  color: var(--text);
  text-decoration: none;
}

.card:hover {
  border-color: var(--accent);
}

.card strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--accent);
}

.card span {
  color: var(--muted);
  font-size: 0.95rem;
}

.note {
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  text-align: center;
}

@media (max-width: 52rem) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2.4rem;
  }

  .hero-visual {
    height: 26rem;
  }
}