/* ══════════════════════════════════════════════════════════════════════════
   DeskRemote public marketing shell — UI/UX authority v3.1
   Depends on deskremote-brand.css (tokens + Inter).
   Use body[data-dr-brand-surface="web-viewer"] and optionally data-dr-marketing="doc|landing".
   ══════════════════════════════════════════════════════════════════════════ */

/* ── Shared box model ───────────────────────────────────────────────────── */
body[data-dr-marketing] *,
body[data-dr-marketing] *::before,
body[data-dr-marketing] *::after {
  box-sizing: border-box;
}

body[data-dr-marketing] {
  margin: 0;
  min-height: 100%;
  font-size: 15px;
  line-height: 1.55;
  color: var(--dr-brand-text);
}

/* ── Top bar / nav ──────────────────────────────────────────────────────── */
.mkt-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  background: rgba(246, 249, 252, 0.9);
  border-bottom: 1px solid rgba(229, 231, 235, 0.95);
}

.mkt-topbar-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 10px 22px;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.mkt-topbar .brand-shell {
  text-decoration: none;
  color: inherit;
}

.mkt-topbar .brand-shell:hover {
  text-decoration: none;
}

.mkt-topbar .brand-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.mkt-nav {
  display: flex;
  align-items: center;
  gap: 6px 14px;
  flex-wrap: wrap;
  font-size: 14px;
  font-weight: 600;
}

.mkt-nav a {
  color: var(--dr-brand-text);
  text-decoration: none;
  padding: 6px 2px;
}

.mkt-nav a:hover {
  color: var(--dr-brand-accent);
  text-decoration: none;
}

.mkt-nav a[aria-current="page"] {
  color: var(--dr-brand-accent);
}

/* ── Layout shells ──────────────────────────────────────────────────────── */
.mkt-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 22px 64px;
}

.mkt-wrap.mkt-doc {
  max-width: 860px;
  padding-top: 28px;
}

/* ── Doc card (legal / product / security style) ─────────────────────────── */
.mkt-doc-card {
  background: #ffffff;
  border: 1px solid var(--dr-brand-border);
  border-radius: 24px;
  box-shadow: var(--dr-brand-shadow);
  padding: 40px 44px;
}

.mkt-doc-card h1 {
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 8px;
  color: var(--dr-brand-text);
}

.mkt-doc-card h2 {
  font-size: 19px;
  font-weight: 750;
  letter-spacing: -0.01em;
  margin: 28px 0 8px;
  color: var(--dr-brand-text);
}

.mkt-doc-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--dr-brand-text);
}

.mkt-doc-card p,
.mkt-doc-card li {
  margin: 10px 0;
  color: var(--dr-brand-text);
}

.mkt-doc-card ul,
.mkt-doc-card ol {
  margin: 10px 0 10px 22px;
}

.mkt-doc-meta {
  color: var(--dr-brand-muted);
  font-size: 13px;
  margin: 0 0 20px;
}

.mkt-notice {
  margin: 16px 0;
  padding: 14px 16px;
  border-left: 3px solid var(--dr-brand-accent);
  background: var(--dr-info-tint);
  border-radius: 10px;
  font-size: 14px;
  color: var(--dr-brand-text);
}

.mkt-notice[data-state="preview"],
.mkt-notice.mkt-notice-warn {
  border-left-color: var(--dr-warning);
  background: var(--dr-warning-tint);
  color: #92400e;
}

.mkt-notice[data-state="ok"],
.mkt-notice.mkt-notice-ok {
  border-left-color: var(--dr-success);
  background: var(--dr-success-tint);
  color: #15803d;
}

.mkt-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 14px;
}

.mkt-box {
  border: 1px solid var(--dr-brand-border);
  border-radius: 16px;
  padding: 18px;
  background: var(--dr-brand-surface-soft);
}

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

.mkt-table th,
.mkt-table td {
  border: 1px solid var(--dr-brand-border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.mkt-table th {
  background: var(--dr-brand-surface-soft);
  font-weight: 700;
}

/* ── Buttons (marketing) ────────────────────────────────────────────────── */
.mkt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid var(--dr-brand-border-strong);
  background: var(--dr-brand-surface-soft);
  color: var(--dr-brand-text);
  font-size: 14px;
  font-weight: 800;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--dr-brand-shadow);
}

.mkt-btn:hover {
  text-decoration: none;
  border-color: var(--dr-brand-accent);
}

.mkt-btn.primary {
  background: var(--dr-grad-primary);
  border-color: transparent;
  color: #ffffff;
}

.mkt-btn.primary:hover {
  filter: brightness(1.03);
  text-decoration: none;
}

.mkt-btn[aria-disabled="true"],
.mkt-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Cards (landing grids) ──────────────────────────────────────────────── */
.mkt-card {
  background: #ffffff;
  border: 1px solid var(--dr-brand-border);
  border-radius: 20px;
  box-shadow: var(--dr-brand-shadow);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 100%;
}

.mkt-card h3 {
  font-size: 16px;
  font-weight: 750;
  margin: 0;
  color: var(--dr-brand-text);
}

.mkt-card p {
  color: var(--dr-brand-muted);
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
.mkt-footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 22px 48px;
  border-top: 1px solid var(--dr-brand-border);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  justify-content: center;
  font-size: 13px;
  color: var(--dr-brand-muted);
}

.mkt-footer a {
  color: var(--dr-brand-muted);
  text-decoration: none;
}

.mkt-footer a:hover {
  color: var(--dr-brand-accent);
  text-decoration: underline;
}

.mkt-footer-seller {
  width: 100%;
  text-align: center;
  font-size: 12px;
  color: var(--dr-brand-subtle);
  margin-top: 4px;
}

/* ── Accessibility ──────────────────────────────────────────────────────── */
body[data-dr-marketing] :focus-visible {
  outline: 3px solid var(--dr-brand-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  body[data-dr-marketing] *,
  body[data-dr-marketing] *::before,
  body[data-dr-marketing] *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

@media (max-width: 720px) {
  .mkt-grid-2 {
    grid-template-columns: 1fr;
  }

  .mkt-doc-card {
    padding: 24px 20px;
  }

  .mkt-doc-card h1 {
    font-size: 25px;
  }
}

/* ── Marketing language toggle (English primary, 繁體中文 secondary) ──────────
   Pairs with /brand/deskremote-lang.js. Bilingual strings are sibling spans
   .lang-en / .lang-zh; body[data-lang="zh-Hant"] flips visibility. Default
   (no attribute, or data-lang="en") shows English. */
.lang-en,
.lang-zh {
  display: inline;
}

.lang-zh {
  display: none;
}

body[data-lang="zh-Hant"] .lang-en {
  display: none !important;
}

body[data-lang="zh-Hant"] .lang-zh {
  display: inline !important;
}

.lang-toggle {
  min-height: 38px;
  border: 1px solid var(--dr-brand-border-strong);
  border-radius: 10px;
  background: var(--dr-brand-surface);
  padding: 0 10px;
  color: var(--dr-brand-text);
  font: inherit;
  font-size: 13px;
}

/* Traditional Chinese typography: Inter carries no CJK glyphs, so give zh-Hant an
   explicit TC-aware fallback chain and the roomier line-height CJK text needs. */
body[data-lang="zh-Hant"] {
  font-family: Inter, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei",
    "Heiti TC", system-ui, sans-serif;
  line-height: 1.7;
}

body[data-lang="zh-Hant"] h1,
body[data-lang="zh-Hant"] h2,
body[data-lang="zh-Hant"] h3 {
  letter-spacing: 0.01em;
  line-height: 1.25;
}