:root {
  --bg: #ffffff;
  --bg-elevated: #fafafa;
  --fg: #0a0a0a;
  --fg-secondary: #404040;
  --muted: #737373;
  --accent: #2e7d4f;
  --accent-hover: #246340;
  --border: #e5e5e5;
  --border-strong: #d4d4d4;
  --selection: rgba(46, 125, 79, 0.15);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --bg-elevated: #141414;
    --fg: #fafafa;
    --fg-secondary: #d4d4d4;
    --muted: #a3a3a3;
    --accent: #5fb87f;
    --accent-hover: #7ed09c;
    --border: #262626;
    --border-strong: #404040;
    --selection: rgba(95, 184, 127, 0.2);
  }
}

* { box-sizing: border-box; }

::selection { background: var(--selection); }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* ============================================================
   Top bar — full width, brand left, nav right
   ============================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}

@media (prefers-color-scheme: dark) {
  .topbar { background: rgba(10, 10, 10, 0.85); }
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  max-width: 1280px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.brand:hover { color: var(--fg); text-decoration: none; }

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--accent);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: -0.02em;
}

.topnav {
  display: flex;
  gap: 28px;
  font-size: 14px;
  font-weight: 500;
}

.topnav a { color: var(--fg-secondary); }
.topnav a:hover { color: var(--accent); text-decoration: none; }
.topnav a.active { color: var(--fg); }

/* ============================================================
   Landing — full-width hero, asymmetric grid, fills viewport
   ============================================================ */
.hero {
  max-width: 1280px;
  margin: 0 auto;
  padding: 120px 32px 96px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 96px;
  align-items: center;
}

.hero-headline {
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0 0 28px;
}

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

.hero-sub {
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
  max-width: 540px;
}

.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 14px;
  color: var(--muted);
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.hero-meta-item {
  display: flex;
  gap: 12px;
}

.hero-meta-label {
  color: var(--muted);
  min-width: 80px;
  font-weight: 500;
}

.hero-meta-value { color: var(--fg-secondary); }
.hero-meta-value a { color: var(--accent); }

/* ============================================================
   Legal pages — left-anchored content + sticky TOC on desktop
   ============================================================ */
.legal {
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 32px 96px;
  display: grid;
  grid-template-columns: minmax(0, 720px) 220px;
  gap: 64px;
  align-items: start;
}

.legal-header {
  grid-column: 1;
}

.legal-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.legal-title {
  font-size: 44px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 16px;
}

.legal-updated {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  font-size: 13px;
  color: var(--muted);
  padding: 6px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 48px;
}

.legal-body {
  grid-column: 1;
  font-size: 16px;
  color: var(--fg-secondary);
}

.legal-body h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin: 56px 0 16px;
  scroll-margin-top: 88px;
}

.legal-body h2:first-child { margin-top: 0; }

.legal-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
  margin: 32px 0 8px;
}

.legal-body p { margin: 0 0 16px; }
.legal-body ul, .legal-body ol { padding-left: 22px; margin: 0 0 20px; }
.legal-body li { margin-bottom: 8px; }
.legal-body strong { color: var(--fg); font-weight: 600; }

.legal-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}

.legal-body th, .legal-body td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.legal-body th {
  font-weight: 600;
  color: var(--fg);
  background: var(--bg-elevated);
}

.legal-body code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  font-size: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
}

/* TOC — sticky on desktop, hidden on mobile */
.toc {
  grid-column: 2;
  grid-row: 1 / span 2;
  position: sticky;
  top: 88px;
  font-size: 13px;
  border-left: 1px solid var(--border);
  padding-left: 24px;
}

.toc-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

.toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toc a {
  color: var(--fg-secondary);
  display: block;
  padding: 4px 0;
  line-height: 1.4;
}

.toc a:hover { color: var(--accent); text-decoration: none; }

/* ============================================================
   Footer
   ============================================================ */
footer.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 96px;
  padding: 48px 32px;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-brand strong {
  color: var(--fg);
  font-weight: 600;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a { color: var(--fg-secondary); }
.footer-links a:hover { color: var(--accent); text-decoration: none; }

/* ============================================================
   Responsive — collapse to single column on tablet/mobile
   ============================================================ */
@media (max-width: 960px) {
  .topbar-inner { padding: 14px 20px; }
  .topnav { gap: 20px; }

  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 64px 20px;
    min-height: auto; /* no viewport-fill on mobile; let content flow */
    align-items: start;
  }

  .legal {
    grid-template-columns: 1fr;
    padding: 48px 20px 64px;
    gap: 32px;
  }
  .legal-title { font-size: 34px; }
  .toc { display: none; }

  footer.site-footer { padding: 32px 20px; }
  .footer-inner { gap: 24px; }
  .footer-links { gap: 20px; flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .legal-title { font-size: 28px; }
  .legal-body h2 { font-size: 22px; }
  .topnav { display: none; } /* hide nav on small screens, brand-only */
  .topbar-inner { justify-content: center; }
}