@font-face {
  font-family: Inter;
  src: url("Inter.ttf") format("truetype");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --primary: #30379d;
  --primary-dark: #272d82;
  --primary-soft: #e8eaff;
  --primary-surface: #f3f4ff;
  --surface: #ffffff;
  --background: #f9fafb;
  --text: #171d27;
  --text-secondary: #606c80;
  --border: #e7eaf0;
  --radius: 12px;
  --content: 720px;
  --wide: 1080px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

h1, h2, h3 { font-weight: 700; }

a { color: var(--primary); }
a:hover { color: var(--primary-dark); }

.skip {
  position: absolute;
  left: -999px;
}
.skip:focus { left: 16px; top: 16px; background: var(--surface); padding: 8px 12px; }

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.bar {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
}

.brand img { display: block; width: 156px; height: auto; }

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
}
nav a:hover, nav a[aria-current="page"] { color: var(--primary); }

main { padding: 0 16px; }

.hero {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 64px 0 48px;
}

.hero h1 {
  margin: 0 0 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
  max-width: 18ch;
}

.lead {
  margin: 0;
  max-width: 60ch;
  font-size: 1.125rem;
  color: var(--text-secondary);
}

.section {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 24px 0 48px;
}

.section h2 { font-size: 1.5rem; margin: 0 0 20px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card h3 { margin: 0 0 8px; font-size: 1.0625rem; }
.card p { margin: 0; color: var(--text-secondary); }

.panel {
  background: var(--primary-surface);
  border: 1px solid var(--primary-soft);
  border-radius: var(--radius);
  padding: 24px;
}
.panel h2, .doc .panel h2 { margin-top: 0; }
.panel p:last-child { margin-bottom: 0; }

.doc {
  max-width: var(--content);
  margin: 0 auto;
  padding: 48px 0 64px;
}
.doc h1 { font-size: clamp(1.75rem, 4vw, 2.25rem); line-height: 1.2; margin: 0 0 8px; }
.doc h2 { font-size: 1.25rem; margin: 40px 0 8px; }
.doc .meta { color: var(--text-secondary); margin: 0 0 32px; }
.doc li { margin-bottom: 6px; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; background: var(--surface); }
th, td {
  text-align: left;
  vertical-align: top;
  padding: 10px 12px;
  border: 1px solid var(--border);
}
th { background: var(--primary-surface); }

footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 0.875rem;
}
footer .bar { padding-top: 24px; padding-bottom: 24px; }
footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 16px; }
footer a { color: var(--text-secondary); }