/* Each palette has one original film; finishes add a fade into the page background. */
@property --art-fade-color{syntax:'<color>';inherits:true;initial-value:transparent}
:root[data-art-variant="white"]:not([data-background-type="solid"]){--page-bg:#fff;--page-header:#fff;--scene-loading-bg:#fff;--art-fade-color:#fff}
:root[data-art-variant="black"]:not([data-background-type="solid"]){--page-bg:#000;--page-header:#000;--scene-loading-bg:#000;--art-fade-color:#000}
:root[data-art-variant="graphite"]:not([data-background-type="solid"]){--page-bg:#181818;--page-header:#181818;--scene-loading-bg:#181818;--art-fade-color:#181818}
:root[data-art-variant="normal"]:not([data-background-type="solid"]){--art-fade-color:transparent}
:root[data-art-variant]:not([data-background-type="solid"]) .hero-atmosphere{mask-image:none;transition:--art-fade-color 1.6s ease}
:root[data-art-variant]:not([data-background-type="solid"]) .hero-atmosphere::after{
  content:'';position:absolute;inset:0;display:block;opacity:1;z-index:3;pointer-events:none;
  background:linear-gradient(to top,var(--art-fade-color) 0%,color-mix(in srgb,var(--art-fade-color) 94%,transparent) 9%,color-mix(in srgb,var(--art-fade-color) 72%,transparent) 25%,color-mix(in srgb,var(--art-fade-color) 35%,transparent) 44%,transparent 68%);
}
:root[data-art-variant="normal"]:not([data-background-type="solid"]) .hero-atmosphere::after{display:none}
:root[data-art-variant]:not([data-background-type="solid"]) .final-atmosphere::after{display:none}
.hero-atmosphere[data-motion-variant="white"]{--art-fade-color:#fff}
.hero-atmosphere[data-motion-variant="black"]{--art-fade-color:#000}
.hero-atmosphere[data-motion-variant="graphite"]{--art-fade-color:#181818}
.hero-atmosphere[data-motion-variant="normal"]{--art-fade-color:transparent}
.concept-art::after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(to top,var(--card-art-fade,transparent),transparent 68%)}
.concept-art[data-art-variant="black"]{--card-art-fade:#000}
.concept-art[data-art-variant="white"]{--card-art-fade:#fff}
.concept-art[data-art-variant="graphite"]{--card-art-fade:#181818}
.concept-art>span{z-index:1}
.art-variants{display:flex;gap:6px;margin-top:18px;flex-wrap:wrap}
.art-variants label{flex:1;min-width:75px;cursor:pointer;position:relative}
.art-variants input{position:absolute;opacity:0;width:1px;height:1px}
.art-variants span{display:block;text-align:center;padding:9px 10px;border:1px solid var(--page-line-strong);border-radius:8px;font-size:12px;color:var(--page-muted)}
.art-variants input:checked+span{background:var(--page-control);border-color:var(--page-control);color:var(--page-control-ink)}
.art-variants input:focus-visible+span{outline:2px solid var(--page-focus);outline-offset:3px}
.art-text-colors{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:14px}
.art-text-color-label{font-size:12px;color:var(--page-muted)}
.art-text-colors .art-variants{margin-top:0;min-width:190px;max-width:240px;flex:1}
/* Opening letters stay local; tool demonstrations and the rest of the page retain their palette. */
:root[data-art-text-color="white"]{--art-opening-ink:#fff}
:root[data-art-text-color="black"]{--art-opening-ink:#000}
:root[data-surface="landing"][data-background-type="art"][data-art-text-color] :is(.hero-copy,.hero-capabilities,.extension-hero-copy,.site-header:not(.is-scrolled)){
  --hero-ink:var(--art-opening-ink);--hero-soft:color-mix(in srgb,var(--art-opening-ink) 7%,transparent);color:var(--art-opening-ink);
}
.ai-palette-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:14px}
.ai-palette-option{position:relative;cursor:pointer}
.ai-palette-option input{position:absolute;opacity:0;width:1px;height:1px}
.ai-palette-option span{display:flex;align-items:center;gap:10px;padding:10px;border:1px solid var(--page-line-strong);border-radius:9px;font-size:12px}
.ai-palette-option i{width:36px;height:24px;border-radius:6px;flex:none;background:var(--swatch)}
.ai-palette-option input:checked+span{outline:2px solid var(--page-focus);outline-offset:1px}
.ai-palette-option input:focus-visible+span{outline:2px solid var(--page-ink);outline-offset:3px}
.ai-palette-preview{display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:9px 15px;border-radius:10px;background:var(--radar-ai-gradient);color:var(--radar-ai-ink);font-size:14px;font-weight:600}
@media(max-width:400px){.ai-palette-options{grid-template-columns:1fr}}