:root {
  --bg: #0d1117;
  --bg-raised: #11161d;
  --fg: #e6edf3;
  --fg-muted: #9aa7b3;
  --border: #232b34;
  --accent: #7c3aed;
  --accent-fg: #ffffff;
  --font-sans: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, Menlo, monospace;
  --max-width: 880px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fa;
    --bg-raised: #ffffff;
    --fg: #14181d;
    --fg-muted: #565f6a;
    --border: #dde2e7;
    --accent: #6d28d9;
    --accent-fg: #ffffff;
  }
}

* { box-sizing: border-box; }

html { color-scheme: dark light; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-fg);
  padding: 8px 16px;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* Header */

.site-header {
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 92px;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.02em;
}

.wordmark .mark { width: auto; height: 68px; fill: var(--accent); }

.site-nav { display: flex; gap: 28px; }

.site-nav a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 15px;
}
.site-nav a:hover { color: var(--fg); }

/* Hero */

.hero { padding: 88px 0 72px; }

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin: 0 0 18px;
}

h1 {
  font-size: 40px;
  line-height: 1.2;
  margin: 0 0 28px;
  letter-spacing: -0.01em;
}

.lede {
  color: var(--fg-muted);
  font-size: 18px;
  max-width: 62ch;
  margin: 0 0 20px;
}

.lede-emphasis { color: var(--fg); }

/* Principles */

.principles {
  padding: 64px 0;
  border-top: 1px solid var(--border);
}

h2 {
  font-size: 24px;
  margin: 0 0 32px;
  letter-spacing: -0.01em;
}

.principle-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 32px;
}

.principle-grid h3 {
  font-size: 16px;
  margin: 0 0 8px;
}

.principle-grid p {
  color: var(--fg-muted);
  font-size: 15px;
  margin: 0;
}

@media (max-width: 640px) {
  .principle-grid { grid-template-columns: 1fr; }
  h1 { font-size: 30px; }
  .hero { padding: 56px 0 48px; }
}

/* Community */

.community {
  padding: 64px 0 72px;
  border-top: 1px solid var(--border);
}

.community p { color: var(--fg-muted); max-width: 60ch; }

.irc-details {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--fg);
  margin: 24px 0;
}
.irc-network { color: var(--fg); }
.irc-sep { color: var(--fg-muted); margin: 0 6px; }
.irc-channel { color: var(--accent); }

.irc-link {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 20px;
  border-radius: 6px;
}
.irc-link:hover { opacity: 0.9; }

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 48px;
}

.site-footer p {
  color: var(--fg-muted);
  font-size: 14px;
  margin: 0 0 8px;
}

.copyright { color: var(--fg-muted); opacity: 0.7; }