:root{
  color-scheme:dark;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --bg:#080b12;
  --surface:#101521;
  --surface-2:#151b29;
  --border:rgba(255,255,255,.09);
  --text:#f4f7fb;
  --muted:#8792a6;
  --accent:#d6b26e;
  --accent-2:#8f7aff;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text)}
button,select,input{font:inherit}
button{cursor:pointer}
.studio-shell{min-height:100vh;display:grid;grid-template-columns:250px minmax(0,1fr) 280px;grid-template-rows:72px minmax(0,1fr) 54px;grid-template-areas:"top top top" "left canvas right" "timeline timeline timeline"}
.topbar{grid-area:top;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid var(--border);background:rgba(8,11,18,.92);backdrop-filter:blur(18px);position:relative;z-index:20}
.brand-wrap{display:flex;align-items:center;gap:12px}.brand-wrap strong{display:block;font-size:14px}.brand-wrap span{display:block;font-size:11px;color:var(--muted);margin-top:2px}.brand-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;font-family:Georgia,serif;font-weight:700;background:linear-gradient(145deg,#e6c57f,#8f6b2b);color:#171007;box-shadow:0 10px 32px rgba(214,178,110,.15)}
.topbar-actions{display:flex;align-items:center;gap:9px}.ghost-button,.primary-button,.device-button,.chip,.nav-button{border:1px solid var(--border);color:var(--text);background:var(--surface);border-radius:10px;padding:9px 12px}.primary-button{background:linear-gradient(135deg,#e1be79,#b58a43);border-color:transparent;color:#171007;font-weight:700}.engine-status{font-size:10px;letter-spacing:.08em;text-transform:uppercase;padding:7px 9px;border-radius:999px;border:1px solid var(--border);color:var(--muted);background:rgba(255,255,255,.025)}.engine-status[data-state="ready"]{color:#a9e6bd;border-color:rgba(85,190,121,.25);background:rgba(85,190,121,.08)}.engine-status[data-state="error"]{color:#ffb4b4;border-color:rgba(255,96,96,.25);background:rgba(255,96,96,.08)}
.panel{background:#0c1019;padding:18px;border-color:var(--border);overflow:auto}.left-panel{grid-area:left;border-right:1px solid var(--border)}.right-panel{grid-area:right;border-left:1px solid var(--border)}.panel-title{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin:4px 0 10px}.left-panel section+section{margin-top:26px}
.scene-list,.chip-row{display:flex;flex-direction:column;gap:7px}.scene-item,.nav-button{width:100%;text-align:left}.scene-item{border:1px solid transparent;background:transparent;color:#cbd4e3;padding:10px 11px;border-radius:10px}.scene-item.active,.nav-button.active{background:var(--surface-2);border-color:var(--border);color:white}.nav-button{margin-bottom:7px;background:transparent}
.canvas-area{grid-area:canvas;min-width:0;display:flex;flex-direction:column;background:radial-gradient(circle at 50% 15%,rgba(143,122,255,.09),transparent 32%),#090d15}.canvas-toolbar{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--border);font-size:12px;color:#c8d1df}.device-switcher{display:flex;gap:6px}.device-button{padding:6px 9px;font-size:11px;background:transparent}.device-button.active{background:var(--surface-2);border-color:rgba(214,178,110,.38)}
.preview-stage{flex:1;display:grid;place-items:center;padding:28px;overflow:auto}.preview-frame{transition:width .35s ease,height .35s ease;box-shadow:0 28px 90px rgba(0,0,0,.48);border:1px solid rgba(255,255,255,.10);border-radius:28px;overflow:hidden;background:#131722}.preview-frame.mobile{width:min(390px,100%);height:720px}.preview-frame.tablet{width:min(720px,100%);height:760px}.preview-frame.desktop{width:min(1060px,100%);height:650px}
.engine-root{width:100%;height:100%;overflow:auto;scroll-snap-type:y proximity;background:#0e1118;scroll-behavior:smooth}.engine-loading,.engine-error{min-height:100%;display:grid;place-items:center;text-align:center;padding:30px;color:#9ba6b8}.engine-error{gap:8px}.engine-error strong{color:#ffc1c1}.engine-error span{font-size:12px;max-width:320px}
.engine-scene{position:relative;min-height:100%;scroll-snap-align:start;display:grid;place-items:center;overflow:hidden;isolation:isolate;background:var(--scene-bg);color:var(--scene-fg)}.engine-scene::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 50% 28%,color-mix(in srgb,var(--scene-accent) 20%,transparent),transparent 38%),linear-gradient(180deg,transparent,rgba(0,0,0,.28));z-index:4}.engine-layer{position:absolute;z-index:10;will-change:transform,opacity}.layer-background{inset:0;z-index:0;background:radial-gradient(circle at 50% 18%,rgba(214,178,110,.23),transparent 28%),linear-gradient(180deg,#211a19 0%,#101218 62%,#080b12 100%)}.layer-decor{width:62%;aspect-ratio:1;left:50%;top:24%;translate:-50% -50%;border:1px solid rgba(218,180,105,.15);border-radius:50% 50% 38% 38%;background:radial-gradient(circle at 50% 72%,rgba(218,180,105,.12),transparent 36%);filter:drop-shadow(0 20px 50px rgba(0,0,0,.32));z-index:5}.layer-decor::before,.layer-decor::after{content:"";position:absolute;left:50%;bottom:8%;translate:-50% 0;border-left:64px solid transparent;border-right:64px solid transparent;border-bottom:118px solid rgba(217,174,91,.18);filter:drop-shadow(0 12px 28px rgba(0,0,0,.22))}.layer-decor::after{bottom:1%;scale:.72;border-bottom-color:rgba(217,174,91,.12)}.layer-particle{inset:0;z-index:7;background-image:radial-gradient(circle,rgba(245,212,142,.72) 0 1px,transparent 1.6px),radial-gradient(circle,rgba(245,212,142,.38) 0 1px,transparent 1.5px);background-size:39px 47px,63px 71px;background-position:0 0,19px 21px;opacity:.34;animation:particle-drift 15s linear infinite}.layer-text{left:50%;top:50%;translate:-50% -50%;width:84%;text-align:center;z-index:20;font-family:Georgia,serif;font-size:clamp(30px,7vw,58px);line-height:1;color:var(--scene-fg);text-shadow:0 12px 34px rgba(0,0,0,.36)}.layer-text[data-role="eyebrow"]{top:39%;font-family:inherit;font-size:10px;letter-spacing:.34em;text-transform:uppercase;color:var(--scene-accent)}.layer-button{left:50%;top:65%;translate:-50% -50%;z-index:20}.engine-button{border:1px solid color-mix(in srgb,var(--scene-accent) 45%,transparent);background:color-mix(in srgb,var(--scene-accent) 10%,transparent);color:var(--scene-fg);padding:11px 18px;border-radius:999px}.scene-placeholder{position:relative;z-index:10;display:grid;gap:8px;text-align:center;color:#9aa5b7}.scene-placeholder span{text-transform:uppercase;font-size:10px;letter-spacing:.18em;color:var(--scene-accent)}.scene-placeholder strong{font-family:Georgia,serif;font-size:30px;font-weight:500;text-transform:capitalize}
[data-motion]{opacity:0;transition-property:opacity,transform,filter;transition-duration:var(--motion-duration,900ms);transition-delay:var(--motion-delay,0ms);transition-timing-function:cubic-bezier(.22,1,.36,1)}[data-motion="fade-up"]{transform:translate3d(0,24px,0)}[data-motion="zoom-in"]{transform:scale(.94)}[data-motion="fade-in"]{transform:none}[data-motion].is-visible,[data-motion].timeline-active{opacity:1;transform:none;filter:none}.timeline-active{animation:timeline-pulse 1.1s ease both}
.property-group{margin-bottom:20px}.property-group label{display:block;color:#c8d1df;font-size:12px;margin-bottom:8px}.property-group select,.property-group input[type=range]{width:100%}.property-group select{background:var(--surface);border:1px solid var(--border);color:var(--text);padding:10px;border-radius:10px}.chip-row{flex-direction:row;flex-wrap:wrap}.chip{padding:7px 9px;font-size:11px;background:transparent}.chip.active{background:rgba(214,178,110,.10);border-color:rgba(214,178,110,.35);color:#f2d798}.property-note{font-size:11px;line-height:1.65;color:var(--muted);padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:12px}
.timeline-bar{grid-area:timeline;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:0 20px;border-top:1px solid var(--border);background:#0a0e16;font-size:11px;color:var(--muted)}.timeline-track{height:4px;background:#1d2534;border-radius:99px;overflow:hidden}.timeline-track i{display:block;height:100%;background:linear-gradient(90deg,#a98243,#e4c47f)}.checkpoint{color:#dfc17e}
@keyframes particle-drift{to{background-position:39px 47px,82px 92px}}@keyframes timeline-pulse{50%{filter:brightness(1.2);scale:1.015}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.layer-particle{animation:none}[data-motion]{opacity:1!important;transform:none!important;transition:none!important}}
@media(max-width:980px){.studio-shell{grid-template-columns:210px minmax(0,1fr);grid-template-areas:"top top" "left canvas" "timeline timeline"}.right-panel{display:none}}
@media(max-width:720px){.studio-shell{display:block}.topbar{height:64px;position:sticky;top:0}.left-panel,.timeline-bar{display:none}.canvas-area{min-height:calc(100vh - 64px)}.preview-stage{padding:16px}.preview-frame.mobile{height:680px}.ghost-button,.engine-status{display:none}}