/* Shared legal / policy pages (/privacy, /terms) — polished document chrome. */
:root {
  --legal-page-bg: #f5f2eb;
  --legal-ink: #2a1a08;
  --legal-muted: #6a5a48;
  --legal-gold: #b8860b;
  --legal-gold-deep: #8a6a20;
  --legal-link: #8b6914;
  --legal-panel: #fffcf7;
  --legal-rule: rgba(184, 134, 11, 0.28);
  --legal-shadow: 0 16px 36px rgba(62, 42, 18, 0.14);
  --legal-radius: 18px;
  --legal-measure: 42rem;
  --legal-serif: "Noto Serif TC", "PMingLiU", "Songti TC", "Source Han Serif TC", serif;
  --legal-sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
}

@keyframes legal-fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

body.legal-page {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--legal-page-bg) !important;
  color: var(--legal-ink);
  font-family: var(--legal-sans);
  -webkit-font-smoothing: antialiased;
}

body.legal-page a {
  color: var(--legal-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

body.legal-page a:hover {
  color: var(--legal-gold-deep);
}

/* —— Top chrome —— */
.legal-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px max(16px, env(safe-area-inset-right)) 10px max(16px, env(safe-area-inset-left));
  background: rgba(247, 243, 234, 0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--legal-rule);
  box-sizing: border-box;
}

.legal-topbar-brand {
  font-family: var(--legal-serif);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  color: var(--legal-ink);
  text-decoration: none;
}

.legal-topbar-brand:hover {
  color: var(--legal-gold-deep);
  text-decoration: none;
}

.legal-topbar-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.legal-topbar-nav a {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--legal-muted);
  border: 1px solid transparent;
}

.legal-topbar-nav a:hover {
  color: var(--legal-ink);
  background: rgba(184, 134, 11, 0.08);
  text-decoration: none;
}

.legal-topbar-nav a.is-active {
  color: var(--legal-gold-deep);
  background: rgba(184, 134, 11, 0.14);
  border-color: rgba(184, 134, 11, 0.35);
}

/* —— Layout —— */
.legal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 16px 48px;
  box-sizing: border-box;
  animation: legal-fade-in 0.35s ease-out;
}

@media (min-width: 900px) {
  .legal-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 28px;
    padding: 28px 24px 64px;
    align-items: start;
  }
}

/* —— TOC —— */
.legal-toc-mobile {
  margin: 0 0 16px;
  border: 1px solid var(--legal-rule);
  border-radius: 12px;
  background: var(--legal-panel);
  overflow: hidden;
}

.legal-toc-mobile > summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 14px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--legal-ink);
  user-select: none;
}

.legal-toc-mobile > summary::-webkit-details-marker { display: none; }

.legal-toc-mobile > summary::after {
  content: "▾";
  float: right;
  color: var(--legal-gold);
}

.legal-toc-mobile[open] > summary::after { content: "▴"; }

.legal-toc-mobile .legal-toc-list {
  margin: 0;
  padding: 0 8px 12px;
  border-top: 1px solid var(--legal-rule);
}

@media (min-width: 900px) {
  .legal-toc-mobile { display: none; }
}

.legal-toc-desktop {
  display: none;
}

@media (min-width: 900px) {
  .legal-toc-desktop {
    display: block;
    position: sticky;
    top: 64px;
    max-height: calc(100vh - 80px);
    overflow: auto;
    padding: 4px 4px 16px 0;
  }
}

.legal-toc-desktop .legal-toc-title {
  margin: 0 0 10px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--legal-gold-deep);
  text-transform: none;
}

.legal-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.legal-toc-list a {
  display: block;
  padding: 6px 10px;
  margin: 1px 0;
  border-radius: 8px;
  font-size: 0.82rem;
  line-height: 1.35;
  color: var(--legal-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
}

.legal-toc-list a:hover {
  color: var(--legal-ink);
  background: rgba(184, 134, 11, 0.08);
  text-decoration: none;
}

.legal-toc-list a.is-active {
  color: var(--legal-gold-deep);
  font-weight: 700;
  background: rgba(184, 134, 11, 0.12);
  border-left-color: var(--legal-gold);
}

/* —— Document panel —— */
.legal-doc {
  background: var(--legal-panel);
  border-radius: var(--legal-radius);
  box-shadow: var(--legal-shadow);
  border: 0;
  overflow: hidden;
  box-sizing: border-box;
}

.legal-header-banner {
  margin: 0;
  padding: 0;
  background: #000;
  line-height: 0;
}

.legal-header-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(28vw, 200px);
  object-fit: cover;
  object-position: center top;
}

@media (min-width: 600px) {
  .legal-header-banner img {
    max-height: 168px;
    object-fit: contain;
    background: #000;
  }
}

.legal-doc-inner {
  max-width: var(--legal-measure);
  margin: 0 auto;
  padding: 28px 22px 32px;
  box-sizing: border-box;
}

.legal-doc-inner.legal-doc-inner--with-banner {
  padding-top: 22px;
}

@media (min-width: 600px) {
  .legal-doc-inner {
    padding: 36px 40px 40px;
  }
}

.legal-doc-hero {
  text-align: center;
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--legal-rule);
}

.legal-eyebrow {
  margin: 0 0 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--legal-gold);
}

.legal-doc-hero h1 {
  margin: 0 0 10px;
  font-family: var(--legal-serif);
  font-size: clamp(1.45rem, 4vw, 1.85rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--legal-gold-deep);
  -webkit-text-fill-color: var(--legal-gold-deep);
}

.legal-meta {
  margin: 0;
  color: var(--legal-muted);
  font-size: 0.92rem;
}

.legal-lead {
  margin: 0 0 1.25em;
  line-height: 1.75;
  color: var(--legal-ink);
  font-size: 1.02rem;
}

.legal-doc h2 {
  margin: 2em 0 0.75em;
  padding-top: 0.35em;
  font-family: var(--legal-serif);
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--legal-ink);
  line-height: 1.4;
  border-top: 1px solid var(--legal-rule);
}

.legal-doc h2:first-of-type {
  margin-top: 1.25em;
}

.legal-doc h2 .legal-h2-num {
  color: var(--legal-gold);
  margin-right: 0.25em;
  font-weight: 700;
}

.legal-doc p,
.legal-doc li {
  line-height: 1.75;
  color: #3a2a18;
  font-size: 0.98rem;
}

.legal-doc ul {
  margin: 0.4em 0 1em;
  padding-left: 1.25em;
}

.legal-doc li + li {
  margin-top: 0.45em;
}

.legal-doc ul ul {
  margin-top: 0.45em;
  margin-bottom: 0.2em;
}

.legal-section-meta {
  margin: 0 0 0.75em;
  color: var(--legal-muted);
  font-size: 0.9rem;
  text-align: left;
}

/* —— Callouts —— */
.legal-callout {
  margin: 0.85em 0 1.15em;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1.5px solid rgba(184, 134, 11, 0.38);
  background: linear-gradient(180deg, #fff9ee 0%, #f7f0e2 100%);
  box-shadow: 0 2px 8px rgba(90, 60, 20, 0.05);
}

.legal-callout > :first-child { margin-top: 0; }
.legal-callout > :last-child { margin-bottom: 0; }

.legal-callout-label {
  display: inline-block;
  margin: 0 0 8px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--legal-gold-deep);
}

/* External links */
.legal-ext::after {
  content: "↗";
  margin-left: 0.15em;
  font-size: 0.85em;
  opacity: 0.7;
}

code.legal-path {
  font-size: 0.86em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.05);
  color: #5a4a38;
}

/* —— Footer actions —— */
.legal-doc-footer {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--legal-rule);
  text-align: center;
}

.legal-home-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35em;
  width: 100%;
  max-width: 420px;
  margin: 0 auto 14px;
  box-sizing: border-box;
  height: 48px;
  min-height: 48px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none !important;
  text-align: center;
  cursor: pointer;
  background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
  color: #fff !important;
  -webkit-text-fill-color: #fff !important;
  border: 3px solid #5a6268;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.legal-home-btn:hover {
  background: linear-gradient(135deg, #5a6268 0%, #343a40 100%);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.22);
  transform: translateY(-1px);
  border-color: #5a6268;
  color: #fff !important;
  -webkit-text-fill-color: #fff !important;
  text-decoration: none !important;
}

.legal-footer-links {
  margin: 0 0 8px;
  font-size: 0.92rem;
  color: var(--legal-muted);
  line-height: 1.5;
}

.legal-footer-links a {
  color: var(--legal-gold);
  font-weight: 600;
}

@media (prefers-reduced-motion: reduce) {
  .legal-layout { animation: none; }
  .legal-home-btn { transition: none; }
  .legal-home-btn:hover { transform: none; }
}

/* —— Print —— */
@media print {
  body.legal-page {
    background: #fff !important;
  }
  .legal-topbar,
  .legal-toc-mobile,
  .legal-toc-desktop,
  .legal-home-btn {
    display: none !important;
  }
  .legal-layout {
    display: block;
    max-width: none;
    padding: 0;
    animation: none;
  }
  .legal-doc {
    box-shadow: none;
    border: 0;
  }
  .legal-doc-inner {
    max-width: none;
    padding: 0;
  }
  .legal-callout {
    border: 1px solid #ccc;
    background: #fafafa;
    box-shadow: none;
  }
  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #666;
  }
  .legal-ext::after { content: none; }
}