:root{color-scheme:dark;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;background-color:#101213;color:#f2f5f7}body,#app{margin:0;min-height:100vh}.app-shell{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:1.5rem;padding:1.5rem;box-sizing:border-box;height:100vh}.preview-stage{position:relative;border-radius:16px;overflow:hidden;background:radial-gradient(circle at center,#282c34cc,#090b0c);box-shadow:0 24px 48px #00000059}.preview-stage{position:relative}.preview-stage video{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}.preview-stage canvas{position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;width:100%;height:100%;pointer-events:none}.sidebar{display:flex;flex-direction:column;padding:1.5rem;border-radius:16px;background:#111517eb;box-shadow:inset 0 0 0 1px #48505752}.sidebar h1{margin:0 0 .5rem;font-size:1.6rem}.sidebar p{color:#a0acb5;margin:0 0 1.25rem}.styles-list{display:grid;gap:.75rem;overflow-y:auto}.style-card{display:flex;align-items:center;justify-content:space-between;padding:.75rem;border-radius:12px;background:#1a1e23eb;border:1px solid transparent;cursor:pointer;transition:border-color .2s ease,transform .2s ease}.style-card:hover{transform:translateY(-1px);border-color:#5eb9ff66}.style-card.active{border-color:#ffa830b3;background:#222529eb}.style-meta{display:flex;flex-direction:column;gap:.25rem}.style-meta span:nth-child(1){font-weight:600}.style-meta span:nth-child(2){color:#8d9aa5;font-size:.92rem}.style-swatch{width:32px;height:32px;border-radius:50%;border:2px solid rgba(255,255,255,.2);flex-shrink:0}.status-banner{display:flex;align-items:center;gap:.5rem;padding:.6rem .8rem;border-radius:10px;background:#1866442b;color:#70f3c9;margin-bottom:.75rem;font-size:.9rem}.status-banner.error{background:#b02e3633;color:#ff9a9f}.status-banner.warn{background:#c4882433;color:#ffdd9f}@media (max-width: 960px){.app-shell{grid-template-columns:1fr;grid-auto-rows:auto}.sidebar{order:-1}.preview-stage{min-height:60vh}}