/* Theme is set in the head, before styles paint, and shared by every route. */
:root { color-scheme: dark; --page-bg: #000; --theme-text: #f5f5f6; }
html, body { background: var(--page-bg); color: var(--theme-text); }
.skip-link:not(:focus) { clip-path: inset(50%); width: 1px; height: 1px; overflow: hidden; white-space: nowrap; padding: 0; }
.cta-short { display: none; }
.brand { flex-shrink: 0; }
.brand-sub, .desktop-nav a { white-space: nowrap; }
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; flex: 0 0 40px; padding: 8px;
  border: 1px solid #ffffff32; border-radius: 8px;
  background: #ffffff08; color: #e5e7ed;
  transition: background-color .2s, border-color .2s;
}
.theme-toggle:hover { background: #ffffff18; border-color: #ffffff70; }
.theme-toggle svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.theme-moon, [data-theme="light"] .theme-sun { display: none; }
[data-theme="light"] .theme-moon { display: block; }
.hero-media video { display: block; }
.hero-media:after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg,#0000 20%,#0000000a 40%,#000000c7 66%,#000 92%);
}

:root[data-theme="light"] {
  color-scheme: light; --page-bg: #fff; --theme-text: #14161b;
  --ink: #14161b; --muted: #58606e; --faint: #69717e;
  --line: #dce0e6; --surface: #f5f6f8;
}
[data-theme="light"] ::selection { background: #202735; color: #fff; }
[data-theme="light"] :is(button,a,input,select,textarea):focus-visible,
[data-theme="light"] .file-button:focus-within { outline-color: #3b557b; }
[data-theme="light"] .brand-sub { color: #606774; }
[data-theme="light"] .brand-mark i { background: linear-gradient(#10131a,#737d8e); }
[data-theme="light"] .site-header.scrolled {
  background: #ffffffe0; border-bottom-color: #151b2814;
  box-shadow: inset 0 1px #fff, 0 8px 32px #18243905;
}
[data-theme="light"] .desktop-nav a { color: #4e5562; }
[data-theme="light"] .desktop-nav a:hover { color: #000; }
[data-theme="light"] :is(.theme-toggle,.menu-toggle) { background: #ffffff40; border-color: #141b2829; color: #252b35; }
[data-theme="light"] .theme-toggle:hover { background: #e9edf3; border-color: #9098a6; }
[data-theme="light"] .menu-toggle span { background: #14161b; }
[data-theme="light"] .mobile-nav { background: #ffffffed; }
[data-theme="light"] .button { color: #242a34; border-color: #c5cbd4; }
[data-theme="light"] .button:hover { border-color: #747e8e; }
[data-theme="light"] .button:before { background: linear-gradient(115deg,transparent 20%,#ffffff38 48%,transparent 76%); }
[data-theme="light"] .button-silver {
  background: linear-gradient(180deg,#343a44,#222831 48%,#10141b);
  color: #fff; border-color: #353b46; box-shadow: inset 0 1px #ffffff26, 0 4px 16px #141b2814;
}
[data-theme="light"] .button-silver:hover { border-color: #0d1118; box-shadow: 0 4px 20px #141b2826; }
[data-theme="light"] .button-glass { background: linear-gradient(135deg,#ffffffb3,#f3f5f8a6); box-shadow: inset 0 1px #fff; }
[data-theme="light"] .button-plain { background: #fff; }
[data-theme="light"] .hero-media { background: #fff; }
/* One decoded video, instant theme inversion, no second download or restart. */
[data-theme="light"] .hero-media video { filter: invert(1); }
[data-theme="light"] .hero-media:after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg,#fff0 20%,#ffffff0a 40%,#ffffffc7 66%,#fff 92%);
}
[data-theme="light"] .hero h1 { text-shadow: 0 2px 24px #ffffff60; }
[data-theme="light"] .hero h1 span { color: #697180; }
[data-theme="light"] .hero .eyebrow { color: #424b59; border: 1px solid #5964771a; background: linear-gradient(90deg,#eff1f5cf,#ffffffc7); }
[data-theme="light"] .hero-lede { color: #545d6d; }
[data-theme="light"] .hero-note { color: #677080; }
[data-theme="light"] .hero-bottom b { color: #303845; }
[data-theme="light"] .hero-bottom span span { color: #657081; }
[data-theme="light"] .motion-toggle { background: #ffffff90; color: #343d4b; border-color: #bfc7d3; }
[data-theme="light"] :is(.eyebrow,.feature-label) { color: #5b6473; }
[data-theme="light"] .feature-label>span { color: #737c8a; }
[data-theme="light"] .text-link { color: #303d52; border-color: #9ba5b5; }
[data-theme="light"] .text-link:hover { color: #000; border-color: #000; }
[data-theme="light"] .mini-wave i { background: linear-gradient(#333d4d,#9da8ba); }
[data-theme="light"] .mini-live>span { color: #737d8b; }
[data-theme="light"] .live-caret:after { background: #485973; }
[data-theme="light"] .mini-speech>span { color: #586475; }
[data-theme="light"] .mini-speech i { background: #65758d; }
[data-theme="light"] .playground { border-color: #cfd6df; background: linear-gradient(155deg,#f7f9fc,#fff 55%); box-shadow: 0 20px 64px #2135520a, inset 0 1px #fff; }
[data-theme="light"] .tabs { background: #e9edf2; border-color: #dce1e8; }
[data-theme="light"] .tabs button { color: #5a6678; }
[data-theme="light"] .tabs button.active { background: linear-gradient(#fff,#f8f9fc); color: #141c2a; box-shadow: 0 2px 6px #2030400d, inset 0 1px #fff; }
[data-theme="light"] .tiny-label { color: #697487; }
[data-theme="light"] .pill { border-color: #d4dbe5; color: #526279; background: #f7f9fc; }
[data-theme="light"] .dropzone { background: #fff; border-color: #bbc5d3; }
[data-theme="light"] .dropzone.dragging { background: #ecf2fa; border-color: #56749b; }
[data-theme="light"] .upload-symbol { color: #7789a2; }
[data-theme="light"] :is(.dropzone p,.file-types,.file-status,.export-note) { color: #657184; }
[data-theme="light"] :is(.demo-settings label,.checkbox-row,.contact-form>.checkbox-row) { color: #586579; }
[data-theme="light"] .checkbox-row input { accent-color: #30425d; }
[data-theme="light"] .file-glyph { color: #51647e; background: #edf1f7; border-color: #c9d3e0; }
[data-theme="light"] .sample-file>div>span { color: #647289; }
[data-theme="light"] .small-button { color: #506789; }
[data-theme="light"] .replica>div span { color: #65758c; }
[data-theme="light"] .replica b { color: #3f587c; }
[data-theme="light"] .replica p { color: #384353; }
[data-theme="light"] .under-demo { color: #637185; }
[data-theme="light"] .live-example { background: #f3f6fa; }
[data-theme="light"] .live-example p { color: #303e52; }
[data-theme="light"] .live-example p span { color: #708198; }
[data-theme="light"] :is(.tts-editor>label,.tts-bottom) { color: #64738a; }
[data-theme="light"] .workflow article { border-color: #cfd7e2; }
[data-theme="light"] .step-number { color: #6b7c94; }
[data-theme="light"] .fact-strip { border-color: #dce2eb; color: #596c86; }
[data-theme="light"] .fact-strip span:before { color: #385475; }
[data-theme="light"] .api-section { border-color: #e0e5ed; background: linear-gradient(125deg,#f2f5fa,#fff 75%); }
[data-theme="light"] .quiet-list { color: #5c6b80; }
[data-theme="light"] .quiet-list li:before { color: #7c8ca2; }
[data-theme="light"] .code-window { border-color: #cbd5e3; background: #fbfcfe; box-shadow: 0 24px 64px #243d630a, inset 0 1px #fff; }
[data-theme="light"] .code-top { color: #516786; }
[data-theme="light"] .code-top>span:last-child { color: #77869b; }
[data-theme="light"] .code-window pre { color: #667891; }
[data-theme="light"] .code-key { color: #354f74; }
[data-theme="light"] .code-value { color: #172a47; }
[data-theme="light"] .code-dim { color: #6b809d; }
[data-theme="light"] .code-foot { color: #5d7290; }
[data-theme="light"] .price-card { border-color: #d4dce8; background: linear-gradient(150deg,#f9fafc,#fff); }
[data-theme="light"] .price-featured { border-color: #899bb7; background: linear-gradient(150deg,#ebf0f8,#f8fafd); box-shadow: inset 0 1px #fff; }
[data-theme="light"] .price-name { color: #5c6d87; }
[data-theme="light"] :is(.price-rate>span,.price-total>span,.price-card>p:not(.price-minutes),.price-details p) { color: #657791; }
[data-theme="light"] .price-minutes { color: #425977; }
[data-theme="light"] .price-divider { background: #d5deeb; }
[data-theme="light"] .postpay p { color: #647791; }
[data-theme="light"] .onprem-panel { background: linear-gradient(135deg,#edf2fa,#fbfcfe 70%); border-color: #c4d0e2; }
[data-theme="light"] .onprem-options span { color: #526c90; border-color: #c3d0e3; }
[data-theme="light"] .deployment-diagram { background: #ffffffb3; border-color: #bdcce0; }
[data-theme="light"] .diagram-node { background: #f0f4fa; color: #354d70; border-color: #c8d5e7; }
[data-theme="light"] .diagram-node>span:not(.brand-mark) { color: #667e9e; }
[data-theme="light"] .diagram-connection { background: linear-gradient(#8da2c2,#bac8df); }
[data-theme="light"] .engine-node { background: linear-gradient(135deg,#fff,#dde7f5); border-color: #8ca5c9; box-shadow: 0 0 32px #829ec314; }
[data-theme="light"] .data-section { border-color: #d8e1ee; }
[data-theme="light"] .data-grid strong { color: #253f66; }
[data-theme="light"] .data-grid strong span { color: #6c82a1; }
[data-theme="light"] .data-grid p { color: #637998; }
[data-theme="light"] .faq-list details { border-color: #d4dfed; }
[data-theme="light"] .faq-list summary { color: #304c72; }
[data-theme="light"] .faq-list summary:after { color: #738bab; }
[data-theme="light"] .faq-list p { color: #617b9b; }
[data-theme="light"] .contact-copy>p { color: #5e799c; }
[data-theme="light"] .contact-meta { color: #6984a7; }
[data-theme="light"] .contact-meta strong { color: #3f5f88; }
[data-theme="light"] :is(.contact-form>label,.form-grid label,.dialog-form>label:not(.checkbox-row)) { color: #546f91; }
[data-theme="light"] input:not([type=checkbox]):not([type=file]),
[data-theme="light"] textarea, [data-theme="light"] select { background: #f8fafc; color: #27486f; border-color: #c8d6e7; }
[data-theme="light"] :is(input,textarea)::placeholder { color: #7d93af; }
[data-theme="light"] .form-status { color: #395f8a; }
[data-theme="light"] .site-footer { background: #f2f6fc; border-color: #d3e0ef; }
[data-theme="light"] .footer-links { color: #59789f; }
[data-theme="light"] .footer-bottom { color: #6b87a9; }
[data-theme="light"] .action-dialog { background: linear-gradient(135deg,#fff,#f0f5fc); border-color: #b7cae3; color: #1c3a60; box-shadow: 0 32px 120px #132c4d30; }
[data-theme="light"] .action-dialog::backdrop { background: #122c4a50; }
[data-theme="light"] .action-dialog>p { color: #557599; }
[data-theme="light"] .dialog-close { color: #6585aa; }
[data-theme="light"] .page-hero p { color: #5c779a; }
[data-theme="light"] :is(.page-content p,.page-content li) { color: #536f94; }
[data-theme="light"] .legal-note { background: #edf3fc; border-color: #b9cce7; color: #3d5f8c!important; }
[data-theme="light"] .pricing-note { color: #647fa3!important; }
[data-theme="light"] .calculator { background: linear-gradient(120deg,#edf3fc,#f9fbfe); border-color: #bdcfe8; }
[data-theme="light"] .calculator label { color: #45658f; }
[data-theme="light"] .calculator input[type=range] { accent-color: #466b9e; }
[data-theme="light"] .calc-result span { color: #587ba7; }
[data-theme="light"] .docs-grid article { border-color: #c6d7ee; background: #f4f8fe; }
[data-theme="light"] :is(.data-table th,.data-table td) { color: #50739e; border-color: #c7d9f0; }
[data-theme="light"] .data-table th { color: #25466f; }
[data-theme="light"] .data-table td:first-child { color: #365b8a; }
[data-theme="light"] .page-back { color: #6182ad; }
@media (max-width:1100px) and (min-width:761px) {
  .header-inner { gap: 16px; }
  .desktop-nav { gap: 20px; }
  .header-actions { gap: 8px; }
}
@media (max-width:420px) {
  .site-header { padding-inline: 16px; }
  .header-inner { gap: 8px; }
  .header-actions { gap: 4px; }
  .header-actions>.button { font-size: 11px; padding-inline: 8px; }
  .brand { gap: 8px; font-size: 20px; }
  .brand-sub { font-size: 8px; letter-spacing: 1px; }
}
@media (min-width:761px) and (max-width:900px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
}
@media (max-width:380px) { .cta-full { display: none; } .cta-short { display: inline; } }
@media (pointer:coarse) { .theme-toggle { width: 44px; height: 44px; flex-basis: 44px; } }
@media (prefers-reduced-motion:reduce) { body { transition: none; } }