:root {
  --ink: #102033;
  --muted: #5c6878;
  --line: #d8e1ea;
  --brand: #006d77;
  --accent: #d97706;
  --bg: #f6f8fb;
  --panel: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

header {
  background: #ffffff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 24px;
}

.brand {
  font-weight: 800;
  font-size: 18px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

a {
  color: var(--brand);
  text-decoration: none;
  font-weight: 700;
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 36px 24px 64px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 44px;
  line-height: 1.05;
  margin: 0 0 14px;
}

.hero p {
  color: var(--muted);
  font-size: 18px;
  max-width: 760px;
}

.panel, .card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.quick-actions {
  display: grid;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 6px;
  background: var(--brand);
  color: #ffffff;
  padding: 0 16px;
}

.button.secondary {
  background: var(--accent);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 18px 0 28px;
}

.card h3, .panel h2 {
  margin-top: 0;
}

code, pre {
  font-family: Consolas, Monaco, monospace;
}

pre {
  overflow: auto;
  background: #101828;
  color: #eef4ff;
  border-radius: 8px;
  padding: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
}

th, td {
  border-bottom: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

.section {
  margin: 30px 0;
}

.mermaid {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

@media (max-width: 860px) {
  .hero, .grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 34px;
  }
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 24px;
  }
}