/*
  Shared layout for the static article + marketing pages (privacy, terms, the
  Keeper landing). Tokens (--color-ink, --color-frost, --font-display, …) come
  from style.css, which every page links FIRST. This file only lays out
  content; it declares no tokens of its own. Same article recipe as the
  per-page block in how-this-works.html — extracted here so the legal +
  landing pages share one source of truth.

  Reduced-motion + prefers-color-scheme are handled at the bottom, matching the
  project reduced-motion contract (mute, don't flip; kill stray transitions).
*/

/* ── Article shell (privacy / terms) ─────────────────────────────────────── */
html.use-redesign-ui body.explainer-body {
  background-color: var(--color-ink);
  color: var(--color-frost);
  font-family: var(--font-body);
  margin: 0;
  min-height: 100vh;
  overflow: auto;
  height: auto;
}
.explainer-shell {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}
.explainer-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-ink-edge);
}
.explainer-brand {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--color-frost-dim);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.explainer-shell h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 36px;
  line-height: 1.2;
  color: var(--color-frost);
  margin: 0;
}
.explainer-effective {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-frost-dim);
  margin-top: 12px;
}
.explainer-shell h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 24px;
  line-height: 1.3;
  color: var(--color-moon);
  margin: 48px 0 16px;
}
.explainer-shell main p,
.explainer-shell main li {
  font-family: var(--font-prose);
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-frost);
}
@media (min-width: 1024px) {
  .explainer-shell main p,
  .explainer-shell main li {
    font-size: 20px;
    line-height: 1.75;
  }
}
.explainer-shell main p { margin: 0 0 16px; }
.explainer-shell main ul { margin: 0 0 16px; padding-left: 24px; }
.explainer-shell main li { margin-bottom: 8px; }
.explainer-shell main code {
  font-family: 'Menlo', 'Consolas', monospace;
  font-size: 0.9em;
  color: var(--color-moon-bright);
  background: var(--color-ink-rise);
  padding: 1px 6px;
  border-radius: 3px;
}
.explainer-shell a {
  color: var(--color-moon);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.explainer-shell a:hover,
.explainer-shell a:focus-visible { color: var(--color-moon-bright); }
.explainer-footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--color-ink-edge);
  font-family: var(--font-display);
  font-size: 16px;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

/* ── Skip-link (keyboard / AT) ───────────────────────────────────────────── */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 8px 16px;
  background: var(--color-ink-rise);
  color: var(--color-moon);
  border: 1px solid var(--color-moon);
  font-family: var(--font-display);
  font-size: 14px;
  z-index: 1;
  text-decoration: none;
}
.skip-link:focus,
.skip-link:focus-visible { left: 8px; top: 8px; }

/* ── Keeper landing (marketing) ──────────────────────────────────────────── */
html.use-redesign-ui body.landing-body {
  background-color: var(--color-ink);
  color: var(--color-frost);
  font-family: var(--font-body);
  margin: 0;
  min-height: 100vh;
  overflow: auto;
  height: auto;
}
.landing-shell { max-width: 860px; margin: 0 auto; padding: 0 24px 72px; }
.landing-nav {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-display);
}
.landing-nav .brand { font-size: 16px; color: var(--color-frost); letter-spacing: 0.04em; }
.landing-nav .nav-links { display: flex; gap: 20px; font-size: 15px; }
.landing-nav a { color: var(--color-moon); text-decoration: none; }
.landing-nav a:hover, .landing-nav a:focus-visible { color: var(--color-moon-bright); }

.landing-hero { text-align: center; padding: 56px 0 40px; }
.landing-hero .eyebrow {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-frost-dim);
  margin-bottom: 20px;
}
.landing-hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 46px;
  line-height: 1.12;
  color: var(--color-frost);
  margin: 0 0 20px;
}
@media (min-width: 768px) { .landing-hero h1 { font-size: 60px; } }
.landing-hero .lede {
  font-family: var(--font-prose);
  font-size: 21px;
  line-height: 1.6;
  color: var(--color-frost);
  max-width: 620px;
  margin: 0 auto 32px;
}
.landing-cta-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary, .btn-ghost {
  font-family: var(--font-display);
  font-size: 17px;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  display: inline-block;
  border: 1px solid transparent;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}
.btn-primary { background: var(--color-moon); color: var(--color-ink); }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--color-moon-bright); }
.btn-ghost { border-color: var(--color-ink-edge); color: var(--color-frost); }
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--color-moon); color: var(--color-moon-bright); }

.landing-section { margin: 64px 0 0; }
.landing-section h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 30px;
  color: var(--color-moon);
  text-align: center;
  margin: 0 0 32px;
}
.feature-grid { display: grid; gap: 24px; grid-template-columns: 1fr; }
@media (min-width: 768px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
.feature {
  background: var(--color-ink-rise);
  border: 1px solid var(--color-ink-edge);
  border-radius: 12px;
  padding: 24px;
}
.feature h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  color: var(--color-frost);
  margin: 0 0 8px;
}
.feature p {
  font-family: var(--font-prose);
  font-size: 17px;
  line-height: 1.6;
  color: var(--color-frost-dim);
  margin: 0;
}

/* Pricing card */
.pricing-card {
  max-width: 460px;
  margin: 0 auto;
  background: var(--color-ink-rise);
  border: 1px solid var(--color-moon);
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
}
.pricing-card .plan-name {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-frost-dim);
  margin-bottom: 12px;
}
.pricing-card .price {
  font-family: var(--font-display);
  font-size: 52px;
  color: var(--color-frost);
  line-height: 1;
}
.pricing-card .price span { font-size: 20px; color: var(--color-frost-dim); }
.pricing-card .price-note {
  font-family: var(--font-prose);
  font-size: 17px;
  color: var(--color-moon);
  margin: 12px 0 24px;
}
.pricing-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  text-align: left;
}
.pricing-card li {
  font-family: var(--font-prose);
  font-size: 17px;
  line-height: 1.5;
  color: var(--color-frost);
  padding: 8px 0 8px 28px;
  position: relative;
}
.pricing-card li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--color-moon);
}
.pricing-fineprint {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-frost-dim);
  margin-top: 20px;
  text-align: center;
}
.pricing-fineprint a { color: var(--color-moon); }

.landing-footer {
  margin-top: 72px;
  padding-top: 28px;
  border-top: 1px solid var(--color-ink-edge);
  font-family: var(--font-display);
  font-size: 15px;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  color: var(--color-frost-dim);
}
.landing-footer a { color: var(--color-moon); text-decoration: none; }
.landing-footer a:hover, .landing-footer a:focus-visible { color: var(--color-moon-bright); }

/* prefers-color-scheme: light — mute, don't flip (NFR-10 / UX-DR10). */
@media (prefers-color-scheme: light) {
  html.use-redesign-ui body.explainer-body,
  html.use-redesign-ui body.landing-body { color: var(--color-frost); }
}
/* prefers-reduced-motion: reduce — kill any hover/focus transitions. */
@media (prefers-reduced-motion: reduce) {
  .explainer-shell a, .skip-link,
  .btn-primary, .btn-ghost,
  .landing-nav a, .landing-footer a { transition: none !important; }
  body::before { transition: none !important; }
}