.demo-play-link{color:var(--brand-text);flex-shrink:0;align-items:center;gap:12px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.demo-play-link small{color:var(--text-muted);margin-top:4px;font-size:12px;font-weight:400;display:block}.demo-play-circle{background:var(--bg-card);border:1px solid;border-radius:50%;place-items:center;width:44px;height:44px;display:grid;position:relative}.demo-play-circle:after{content:"";pointer-events:none;border:1px solid;border-radius:50%;animation:3.5s ease-out infinite demo-pulse;position:absolute;inset:-1px}.demo-play-link:hover .demo-play-circle{background:var(--bg-secondary)}.demo-play-link:focus-visible{outline:2px solid var(--brand-text);outline-offset:5px;border-radius:24px}@keyframes demo-pulse{0%,25%{opacity:0;transform:scale(1)}35%{opacity:.35}90%,to{opacity:0;transform:scale(1.3)}}.demo-dialog{box-sizing:border-box;border:1px solid var(--border-color);background:var(--bg-card);width:min(1040px,100vw - 40px);max-height:calc(100dvh - 40px);color:var(--text-primary);overscroll-behavior:contain;box-shadow:var(--shadow-lg);border-radius:20px;margin:auto;padding:0;overflow:auto}.demo-dialog::backdrop{background:#0a110eb8}.demo-dialog>header{border-bottom:1px solid var(--border-color);grid-template-columns:minmax(0,1fr) 40px;align-items:flex-start;gap:20px;padding:24px 24px 20px;display:grid}.demo-dialog .demo-dialog-eyebrow{color:var(--text-muted);margin:0 0 8px;font-size:12px;line-height:1.5}.demo-dialog h2{letter-spacing:-.04em;margin:0;font-size:clamp(20px,3vw,28px);line-height:1.2}.demo-dialog .demo-dialog-description,.demo-language-note{color:var(--text-muted);font-size:14px;line-height:1.6}.demo-dialog .demo-dialog-description{max-width:65ch;margin:10px 0 0}.demo-dialog-body{padding:0 24px 24px}.demo-dialog .icon-button{width:40px;height:40px}.demo-video-content video{aspect-ratio:16/11;object-fit:contain;background:#111;border-radius:10px;width:100%;display:block}.demo-dialog .demo-video-content video{max-height:min(60dvh,640px)}.demo-video-content video::cue{color:#fff;background:#000000e0;font-size:15px}.demo-playback{flex-wrap:wrap;align-items:center;gap:12px 18px;padding:16px 0;font-size:13px;display:flex}.demo-playback a{color:var(--brand-text)}.demo-playback>span{font-variant-numeric:tabular-nums;color:var(--text-muted)}.demo-transcript{border-top:1px solid var(--border-color);padding-top:16px}.demo-transcript summary{cursor:pointer;padding:6px 0;font-weight:600}.demo-transcript ol{margin:16px 0 0;padding:0;list-style:none}.demo-transcript li+li{border-top:1px solid var(--border-color);padding-top:16px}.demo-transcript li p{color:var(--text-muted);margin:10px 0 20px;font-size:14px;line-height:1.7}.demo-chapter{color:var(--text-primary);text-align:left;cursor:pointer;font:inherit;background:0 0;border:0;align-items:baseline;gap:12px;padding:0;display:flex}.demo-chapter span{color:var(--brand-text);font-variant-numeric:tabular-nums}.demo-library{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin:40px 0;display:grid}.demo-library article{border-top:1px solid var(--border-color);flex-direction:column;min-width:0;padding-top:18px;display:flex}.demo-library img{aspect-ratio:16/11;object-fit:contain;background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;width:100%;height:auto;display:block}.demo-library article h2{letter-spacing:-.04em;margin:0;font-size:23px;line-height:1.15}.demo-card-content{flex-direction:column;flex:1;gap:14px;padding-top:20px;display:flex}.demo-library article p{color:var(--text-muted);margin:0;font-size:14px;line-height:1.6}.demo-card-actions{flex-direction:column;align-items:flex-start;gap:18px;margin-top:auto;padding-top:8px;display:flex}.demo-library .demo-play-link{margin:0}.demo-guide-link{color:var(--brand-text);font-size:13px;display:block}.site-demo-detail{max-width:1040px;padding-top:42px;padding-bottom:70px}.site-demo-detail .site-page-heading{margin:28px 0}.site-demo-detail .site-page-heading h1{font-size:clamp(32px,5vw,54px)}.demo-help-link{margin:20px 0}@media (width<=850px){.demo-library{grid-template-columns:1fr}.demo-library article{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:12px 24px;display:grid}.demo-card-content{padding-top:0}}@media (width<=600px){.demo-dialog{border-radius:14px;width:calc(100vw - 16px);max-height:calc(100dvh - 16px);padding:0}.demo-dialog h2{font-size:20px}.demo-dialog>header{gap:12px;padding:20px 16px 16px}.demo-dialog-body{padding:0 16px 20px}.demo-library article{display:block}.demo-card-content{padding-top:18px}.demo-video-content video::cue{font-size:12px}.topbar .demo-play-circle{width:36px;height:36px}}@media (prefers-reduced-motion:reduce){.demo-play-circle:after{animation:none}}.demo-video-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 20px;padding:16px 0;display:flex}.demo-video-toolbar .demo-language-note{margin:0;font-size:12px}.demo-player .demo-language-picker{color:var(--text-secondary);flex-flow:wrap;align-items:center;gap:.75rem;margin:0;font-size:.875rem;display:flex}.demo-player .demo-language-picker select{border:1px solid var(--border-color);background:var(--bg-card);width:auto;min-width:9rem;color:var(--text-primary);font:inherit;border-radius:.6rem;margin:0;padding:.5rem .75rem}.demo-language-picker select:focus-visible{outline:2px solid var(--brand-text);outline-offset:3px}