:root {
  /* Blueprint Techno — light (matches docs/DESIGN_SYSTEM.md and the landing's --bp-* copy) */
  /* Surfaces (paper) */
  --bg-canvas:      #F4F7FB;
  --bg-panel:       #FAFCFE;
  --bg-raised:      #E8EEF5;
  --bg-overlay:     #FFFFFF;
  /* Borders (ink rules) */
  --border-hairline:#DCE6F0;
  --border-edge:    #94B1C8;
  /* Ink (text scale) */
  --text-ink:       #0F2340;
  --text-soft:      #2D4866;
  --text-fade:      #4F7297;
  --text-dim:       #6F8BA9;
  /* Accent (Blueprint cyan) */
  --accent:         #0284C7;
  --accent-hover:   #0EA5E9;
  --accent-soft:    rgba(2, 132, 199, 0.08);
  /* Semantic */
  --success:        #059669;
  --warning:        #B45309;
  --danger:         #BE123C;
  /* Drafting grid */
  --grid-fine:      rgba(15, 35, 64, 0.020);
  --grid-major:     rgba(15, 35, 64, 0.045);
  --tx:             cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-canvas);
  color: var(--text-ink);
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 17px;
  line-height: 1.6;
}

/* Drafting paper — faint two-layer grid + soft vignette */
body {
  background-image:
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px),
    linear-gradient(var(--grid-fine) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-fine) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px, 24px 24px, 24px 24px;
  background-position: -1px -1px, -1px -1px, -1px -1px, -1px -1px;
  background-attachment: fixed;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(2, 132, 199, 0.06), transparent 55%),
    radial-gradient(ellipse at 50% 100%, rgba(15, 35, 64, 0.05), transparent 55%);
}
body > * { position: relative; z-index: 1; }

a { color: var(--accent); text-decoration: none; transition: color 150ms var(--tx); }
a:hover { color: var(--accent-hover); }

/* ────────────────────────────────────────────────────────────
   Top sticky nav
   ──────────────────────────────────────────────────────────── */
.policy-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(250, 252, 254, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-hairline);
}
.policy-nav .inner {
  max-width: 780px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.policy-nav .back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-fade);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.policy-nav .back:hover { color: var(--text-ink); }
.policy-nav .lang-tag {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  padding: 3px 8px;
  border: 1px solid var(--border-edge);
  border-radius: 0;
  background: var(--bg-panel);
  text-transform: uppercase;
}
.policy-nav .lang-tag:hover { border-color: var(--accent); }

/* ────────────────────────────────────────────────────────────
   Body
   ──────────────────────────────────────────────────────────── */
.policy {
  max-width: 780px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

.policy h1 {
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.2;
  margin: 0 0 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-ink);
}

.policy .meta {
  color: var(--text-fade);
  font-size: 13px;
  margin: 0 0 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-hairline);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  letter-spacing: 0.04em;
}

.policy h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 44px 0 14px;
  color: var(--text-ink);
}
.policy h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 28px 0 10px;
  color: var(--text-ink);
}

.policy p { margin: 0 0 16px; color: var(--text-ink); }
.policy p + p { margin-top: 0; }

.policy ul, .policy ol { padding-left: 22px; margin: 0 0 16px; }
.policy li { margin-bottom: 6px; color: var(--text-ink); }
.policy li::marker { color: var(--text-fade); }

.policy strong { color: var(--text-ink); font-weight: 600; }
.policy em { color: var(--text-fade); font-style: normal; }

.policy code {
  font-family: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  font-size: 13px;
  padding: 2px 6px;
  border-radius: 0;
  background: var(--bg-raised);
  border: 1px solid var(--border-hairline);
  color: var(--accent);
}

.policy hr {
  margin: 40px 0;
  border: 0;
  border-top: 1px solid var(--border-hairline);
}

.policy .callout {
  margin: 20px 0;
  padding: 14px 16px 14px 18px;
  background: var(--bg-panel);
  border: 1px solid var(--border-hairline);
  border-left: 3px solid var(--accent);
  border-radius: 0;
  color: var(--text-soft);
  font-size: 14px;
}

.policy table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
  background: var(--bg-panel);
  border: 1px solid var(--border-hairline);
  border-radius: 0;
  overflow: hidden;
}
.policy table th,
.policy table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border-hairline);
  vertical-align: top;
}
.policy table th {
  background: var(--bg-panel);
  color: var(--text-fade);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border-edge);
}
.policy table tr:last-child td { border-bottom: 0; }
.policy table td { color: var(--text-ink); }

.policy .placeholder {
  color: var(--accent);
  font-family: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  font-size: 0.92em;
  padding: 1px 6px;
  background: var(--accent-soft);
  border: 1px solid rgba(2, 132, 199, 0.25);
  border-radius: 0;
}

.policy-footer {
  max-width: 780px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  text-align: center;
  color: var(--text-fade);
  font-size: 12px;
  border-top: 1px solid var(--border-hairline);
}
.policy-footer a { color: var(--text-fade); margin: 0 10px; }
.policy-footer a:hover { color: var(--text-ink); }

*:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}