/* Zero Permission LLC — Vantage Tradespace brand (graphite + engineering-pad sage)
   Used by: vantage-tradespace/index.html, help, privacy, terms, data-safety
   Standalone page; locked to the light variant of the app's own palette
   (same hex values as the app's device-test-procedure doc and in-app theme —
   deliberately NOT adaptive to visitor OS dark/light, matching AvoidZero
   (locked dark) and Carry Horizon (locked light)'s own precedent of one
   committed look per product page rather than a toggle. */

:root {
  --paper: #F1F5F3;
  --surface: #FFFFFF;
  --surface-alt: #E7EBE9;
  --border: #D3D9D6;
  --border-strong: #B7C0BC;
  --ink: #171B19;
  --ink-soft: #4A5551;
  --ink-mute: #7C8985;
  --sage-100: #DCEEE3;
  --sage-300: #A9CDB9;
  --sage-500: #4F8A6C;
  --sage-700: #34614A;
  --amber-fg: #A97C3E;
  --amber-bg: #F3E7D2;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  line-height: 1.65;
  font-size: 16px;
}

/* Nav */
.top-nav { max-width: 1200px; margin: 0 auto; padding: 18px 24px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); }
.nav-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; border-bottom: none; color: inherit; }
.nav-brand:hover { border-bottom: none; }
.nav-mark { width: 27px; height: 32px; color: var(--ink); flex-shrink: 0; }
.nav-company { font-size: 14px; color: var(--ink-mute); letter-spacing: 0.5px; text-transform: uppercase; font-weight: 500; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--ink-mute); font-size: 14px; text-decoration: none; border-bottom: none; transition: color 0.15s; }
.nav-links a:hover { color: var(--sage-700); border-bottom: none; }
.nav-links a.active { color: var(--ink); }

/* Sub-nav breadcrumb */
.sub-nav { max-width: 1200px; margin: 0 auto; padding: 12px 24px; display: flex; gap: 20px; border-bottom: 1px solid var(--border); font-size: 13px; }
.sub-nav a { color: var(--ink-mute); text-decoration: none; border-bottom: none; transition: color 0.15s; }
.sub-nav a:hover { color: var(--sage-700); }
.sub-nav a.active { color: var(--ink); font-weight: 500; }
.sub-nav .crumb { color: var(--ink-mute); opacity: 0.5; }

/* Content container */
.container { max-width: 960px; margin: 0 auto; padding: 64px 24px 80px; }

/* Hero */
header.hero { padding-bottom: 44px; margin-bottom: 48px; border-bottom: 1px solid var(--border); text-align: left; }
.hero-mark { width: 72px; height: 72px; border-radius: 16px; display: block; margin-bottom: 28px; }
h1 { font-size: 40px; font-weight: 700; margin: 0 0 14px 0; color: var(--ink); letter-spacing: -0.6px; line-height: 1.15; }
.tagline { color: var(--ink-soft); font-size: 19px; margin: 0 0 28px 0; font-weight: 400; max-width: 620px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.btn-primary, .btn-secondary { display: inline-block; padding: 12px 22px; border-radius: 6px; font-weight: 600; font-size: 15px; text-decoration: none; border-bottom: none; transition: background 0.15s, color 0.15s, border-color 0.15s; }
.btn-primary { background: var(--sage-500); color: #FFFFFF; border: 1px solid var(--sage-500); }
.btn-primary:hover { background: var(--sage-700); border-color: var(--sage-700); border-bottom: none; }
.btn-secondary { background: transparent; color: var(--ink); border: 1px solid var(--border-strong); }
.btn-secondary:hover { background: var(--sage-100); border-color: var(--sage-500); border-bottom: none; }

/* Typography */
h2 { font-size: 22px; font-weight: 600; color: var(--ink); margin: 48px 0 16px 0; letter-spacing: -0.3px; }
h3 { font-size: 17px; font-weight: 600; color: var(--ink); margin: 24px 0 8px 0; }
p { margin: 0 0 16px 0; color: var(--ink); }
ul { padding-left: 24px; margin: 0 0 16px 0; }
li { margin-bottom: 8px; color: var(--ink); }
strong { color: var(--ink); font-weight: 600; }
a { color: var(--sage-700); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color 0.15s, color 0.15s; }
a:hover { border-bottom-color: var(--sage-700); }

/* Feature grid (product page) */
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 8px 0 12px 0; }
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 20px 22px; }
.feature-card h3 { margin: 0 0 6px 0; font-size: 16px; font-weight: 600; color: var(--ink); letter-spacing: -0.1px; }
.feature-card p { margin: 0; font-size: 14px; color: var(--ink-soft); line-height: 1.55; }

/* Summary / trust cards — shared component */
.summary-card, .trust-strip { background: var(--sage-100); border-radius: 8px; padding: 24px 28px; margin: 32px 0 16px 0; }
.summary-card { background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--sage-500); border-radius: 8px; }
.summary-card p:last-child, .trust-strip p:last-child { margin-bottom: 0; }
.trust-strip p { color: var(--sage-700); font-size: 15px; }
.trust-strip strong { color: var(--ink); }

/* Meta row (privacy/terms) */
.meta { color: var(--ink-mute); font-size: 14px; display: flex; flex-wrap: wrap; gap: 24px; }
.meta span strong { color: var(--ink); font-weight: 500; }

/* Caution note — mirrors the app's own amber caution token */
.caution-note { background: var(--amber-bg); color: var(--amber-fg); border-radius: 6px; padding: 12px 16px; font-size: 14px; font-weight: 600; margin: 16px 0; }

/* Footer */
footer { margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--border); color: var(--ink-mute); font-size: 14px; text-align: center; }
footer a { color: var(--ink-mute); }
footer a:hover { color: var(--sage-700); border-bottom-color: var(--sage-700); }
footer .footer-links { margin-bottom: 12px; }
footer .footer-links a { margin: 0 12px; }

@media (max-width: 600px) {
  .top-nav { padding: 14px 16px; }
  .nav-links { gap: 18px; }
  .nav-links a { font-size: 13px; }
  .nav-company { display: none; }
  .sub-nav { padding: 10px 16px; gap: 14px; overflow-x: auto; }
  .container { padding: 40px 20px 56px; }
  .hero-mark { width: 60px; height: 60px; margin-bottom: 22px; }
  h1 { font-size: 30px; }
  .tagline { font-size: 17px; }
  h2 { font-size: 19px; margin-top: 36px; }
  .feature-grid { grid-template-columns: 1fr; }
  .cta-row { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-secondary { text-align: center; }
  body { font-size: 15px; }
}