/* Shared public-header preferences. Filament keeps its independent appearance settings. */
:root { color-scheme: light; --preference-hover: #f2efe8; --preference-selected: #fff0e4; --preference-ink: #964000; --preference-muted: #52677b; --preference-focus: #b94b00; }
.topbar { overflow: visible; }
.nav-actions { flex-wrap: nowrap; flex-shrink: 0; gap: 10px; }
.brand { min-width: 44px; min-height: 44px; }
.header-preference { position: relative; flex: 0 0 auto; }
.preference-trigger {
  min-height: 44px; display: flex; align-items: center; justify-content: center; gap: 9px;
  padding: 9px 13px; border: 1px solid var(--line); border-radius: 14px;
  color: var(--ink); background: var(--surface-strong); font: 500 14px/1.3 Outfit, 'Segoe UI', sans-serif;
  list-style: none; cursor: pointer; user-select: none;
  transition: background .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.preference-trigger::-webkit-details-marker { display: none; }
.preference-trigger::marker { content: ''; }
.preference-trigger:hover, .header-preference[open] > .preference-trigger { background: var(--preference-hover); border-color: var(--brand); }
.preference-trigger:focus-visible { outline: 3px solid var(--preference-focus); outline-offset: 3px; }
.header-preference[open] > .preference-trigger { box-shadow: 0 0 0 3px #f5710a14; }
.preference-icon { flex: 0 0 20px; width: 20px; height: 20px; }
.preference-chevron { width: 6px; height: 6px; border: solid currentColor; border-width: 0 1.5px 1.5px 0; rotate: 45deg; margin: -3px 2px 0 3px; transition: rotate .18s ease; }
.header-preference[open] .preference-chevron { rotate: 225deg; margin-top: 3px; }
.language-current-code { display: none; font-weight: 600; }
.preference-panel {
  position: absolute; top: calc(100% + 12px); right: 0; z-index: 100;
  width: 240px; max-width: calc(100vw - 36px); max-height: min(420px, calc(100dvh - 110px)); overflow-y: auto;
  padding: 10px; border: 1px solid var(--line); border-radius: 20px;
  background: var(--surface-strong); color: var(--ink); box-shadow: 0 12px 35px -12px #1a274438, 0 2px 6px #1a27440a;
}
.preference-panel-title { display: block; color: var(--preference-muted); font-size: 12px; font-weight: 600; letter-spacing: .06em; margin: 0; padding: 9px 10px 12px; }
.language-option, .appearance-option {
  display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 10px;
  border-radius: 12px; color: var(--ink); font-size: 15px; font-weight: 500; cursor: pointer;
}
.language-option:hover, .appearance-option:hover { background: var(--preference-hover); }
.language-option[aria-current=true], .appearance-option:has(input:checked) { background: var(--preference-selected); color: var(--preference-ink); }
.language-option:focus-visible, .appearance-option:has(input:focus-visible) { outline: 2px solid var(--preference-focus); outline-offset: -2px; }
.language-code { display: grid; place-items: center; min-width: 32px; min-height: 28px; border: 1px solid var(--line); border-radius: 8px; font-size: 11px; font-weight: 600; letter-spacing: .04em; }
.preference-check { margin-left: auto; width: 18px; height: 18px; flex-basis: 18px; }
.appearance-control { display: none; }
:root[data-theme-preference] .appearance-control { display: block; }
.appearance-trigger { width: 44px; padding: 10px; }
.appearance-symbol { display: none; }
:root[data-theme-preference=system] .appearance-symbol-system,
:root[data-theme-preference=light] .appearance-symbol-light,
:root[data-theme-preference=dark] .appearance-symbol-dark { display: block; }
.appearance-panel fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.appearance-panel legend { width: 100%; }
.appearance-option { position: relative; }
.appearance-option input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.appearance-option .preference-check { opacity: 0; }
.appearance-option input:checked ~ .preference-check { opacity: 1; }
.preference-hint { margin: 9px 10px 5px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 12px; line-height: 1.5; color: var(--preference-muted); }

/* Adaptive palette based on the app's approved navy dark appearance. */
:root[data-theme=dark] {
  color-scheme: dark;
  --bg: #111c2d; --bg-strong: #1b2a3e;
  --surface: rgba(36,51,71,.82); --surface-strong: #243347; --surface-dark: #0c1523;
  --ink: #fff; --muted: #b8c7d5; --line: #2d4155;
  --teal: #77d2df; --green: #8cd6aa; --purple: #c8ace9;
  --pastel-orange: #3b2b24; --pastel-teal: #183d49; --pastel-green: #1b3b33; --pastel-purple: #342e49;
  --preference-hover: #2b4058; --preference-selected: #3b2b24; --preference-ink: #ffb37c; --preference-muted: #b8c7d5; --preference-focus: #f5710a;
  --shadow-lg: 0 30px 80px #0005; --shadow-md: 0 16px 42px #0004;
}
:root[data-theme=dark] body {
  background: radial-gradient(circle at 10% 0%, #0d7a8a14, transparent 28%), radial-gradient(circle at 90% 5%, #f5710a0a, transparent 32%), var(--bg);
}
:root[data-theme=dark] :is(.topbar, body.menu-open .topbar) { background: #111c2df2; border-color: var(--line); }
:root[data-theme=dark] :is(.meta-card, .tour-shell, .tour-point, .tour-counter, .floating-chip, .thumb, .feature-card, .news-card, .news-single-article, .privacy-card, .faq-item, .contact-card, .eyebrow, .motion-control, .faq-search, .btn-secondary, .btn-ghost, .nav-toggle, .nav-download-panel) {
  background: var(--surface-strong); border-color: var(--line); color: var(--ink);
}
:root[data-theme=dark] :is(.tour-copy, .workflow-card, .privacy-option, .privacy-story, .faq-side, .contact-side) {
  background: linear-gradient(145deg, var(--surface-strong), var(--bg-strong)); border-color: var(--line);
}
:root[data-theme=dark] :is(#features, #contact) { background: #152236; }
:root[data-theme=dark] :is(.privacy-story-source, .privacy-story-target) { background: var(--surface-strong); border-color: var(--line); }
:root[data-theme=dark] .privacy-story-route.is-active .privacy-story-target { background: var(--privacy-soft); }
:root[data-theme=dark] .privacy-story-line { background: var(--line); }
:root[data-theme=dark] .privacy-option.is-active { background: var(--privacy-soft); border-color: var(--privacy-route); }
:root[data-theme=dark] :is(.form-field input, .form-field textarea, .contact-form input, .contact-form textarea, .faq-search) { background: var(--bg); border-color: var(--line); color: var(--ink); }
:root[data-theme=dark] :is(input, textarea)::placeholder { color: #a9bbcd; opacity: 1; }
:root[data-theme=dark] :is(.nav-download-link, .thumb.active, .btn-secondary:hover, .btn-ghost:hover, .nav-toggle:hover) { background: var(--bg-strong); border-color: var(--line); }
:root[data-theme=dark] :is(.nav-links a:hover, .nav-download-menu summary:hover, .nav-download-menu[open] summary) { background: var(--surface-strong); color: var(--ink); }
:root[data-theme=dark] :is(.nav-links a.is-active, .nav-links a[aria-current=page], .nav-download-menu.is-active summary, .free-pill) { background: var(--pastel-orange); color: var(--preference-ink); }
:root[data-theme=dark] :is(.workflow-card:nth-child(1) .workflow-step, .tour-point:nth-child(1) .tour-point-index, .text-link, .news-card .text-link, .pagination a) { color: var(--preference-ink); }
:root[data-theme=dark] :is(.feature-card, .privacy-card, .contact-card, .meta-card, .tour-point, .floating-chip, .news-card) { box-shadow: 0 12px 35px -16px #0008; }
:root[data-theme=dark] .faq-item { box-shadow: 0 2px 5px -2px #0005, 0 6px 12px -8px #0009; }
:root[data-theme=dark] .faq-item:hover { box-shadow: 0 3px 6px -2px #0005, 0 10px 18px -12px #0009; }
:root[data-theme=dark] .preference-panel { box-shadow: 0 14px 40px -12px #0009; }
:root[data-theme=dark] .footer-note-subtle { color: var(--muted); }
:root[data-theme=dark] .form-note.is-error, :root[data-theme=dark] .contact-status.is-error { color: #ffb4a8; }
:root[data-theme=dark] .skip-link { background: var(--surface-strong); color: var(--ink); }

@media (min-width: 861px) and (max-width: 1200px) {
  .nav-links { gap: 0; font-size: 13px; }
  .nav-links a, .nav-download-menu summary { padding-inline: 7px; }
  .nav-links > a, .nav-download-menu > summary { min-height: 44px; display: inline-flex; align-items: center; }
  .language-current-name { display: none; }
  .language-current-code { display: inline; }
}
@media (max-width: 860px) {
  .language-current-name { display: none; }
  .language-current-code { display: inline; }
  .preference-trigger { padding-inline: 10px; gap: 7px; }
  .appearance-trigger { padding: 10px; }
  .language-picker > .preference-trigger { padding-inline: 8px; gap: 6px; }
  .nav-actions { gap: 8px; }
  .nav-toggle { width: 44px; height: 44px; }
  .nav { flex-wrap: wrap; }
  .nav-links { visibility: hidden; }
  body.menu-open .nav-links { visibility: visible; }
  .preference-panel { top: calc(100% + 16px); }
  /* Align both panels with the end of the 44px/8px action row, keeping phone gutters. */
  .language-panel { right: -104px; }
  .appearance-panel { right: -52px; }
  :root[data-theme=dark] :is(.topbar, body.menu-open .topbar) { background: transparent; }
  :root[data-theme=dark] :is(.nav, body.menu-open .nav) { background: #1b2a3ef5; border-color: var(--line); }
  :root[data-theme=dark] :is(.nav-links a, .nav-download-link) { background: var(--surface-strong); border-color: var(--line); box-shadow: none; }
  :root[data-theme=dark] .nav-download-panel { background: transparent; }
  :root[data-theme=dark] :is(.hero-copy-block, .hero-visual) { background: transparent; }
}
@media (max-width: 400px) { .brand { font-size: 18px; } }
@media (max-width: 360px) { .brand > span { display: none; } }
@media (prefers-reduced-motion: reduce) { .preference-trigger, .preference-chevron { transition: none; } }