:root{--bg: #0b0d14;--bg-soft: #11131d;--panel: #151824;--panel-2: #1b1f2e;--line: #262b3d;--text: #e8ecf8;--muted: #949cb8;--accent: #ff79c6;--accent-2: #8be9fd;--ok: #50fa7b;--warn: #f1fa8c;--err: #ff5555;--radius: 12px;--mono: "JetBrains Mono", "Cascadia Code", Consolas, "Liberation Mono", monospace;--sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:var(--bg);color:var(--text);font:14px/1.5 var(--sans);-webkit-font-smoothing:antialiased}.app{display:grid;grid-template-columns:340px minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);grid-template-areas:"top top" "panel stage";height:100%}.topbar{grid-area:top;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 20px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--panel),var(--bg-soft))}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:26px;height:26px;border-radius:8px;background:radial-gradient(circle at 30% 30%,var(--accent),#7b2ff7 60%,#0d0f16);box-shadow:0 0 18px #ff79c659}.topbar h1{margin:0;font-size:16px;letter-spacing:.2px}.topbar h1 span{color:var(--accent-2);font-weight:500}.tagline{margin:0;font-size:12px;color:var(--muted)}.topbar-links{display:flex;gap:14px;font-size:13px}a{color:var(--accent-2);text-decoration:none}a:hover{text-decoration:underline}.panel{grid-area:panel;overflow-y:auto;border-right:1px solid var(--line);background:var(--bg-soft);padding:16px;display:flex;flex-direction:column;gap:18px}.group{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:12px}.group h2{margin:0 0 10px;font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}.field{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px;font-size:13px}.field>span{color:var(--muted);flex:0 0 auto}.field-block{flex-direction:column;align-items:stretch}.field-block>span{margin-bottom:6px}select,textarea,input[type=range],button{font:inherit;color:var(--text)}select{flex:1 1 auto;min-width:0;max-width:190px;padding:6px 8px;border-radius:8px;border:1px solid var(--line);background:var(--panel-2)}textarea{width:100%;resize:vertical;padding:10px;border-radius:8px;border:1px solid var(--line);background:#0c0e16;font-family:var(--mono);font-size:12px;line-height:1.5;tab-size:2}input[type=range]{flex:1 1 auto;accent-color:var(--accent)}.check{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:13px;color:var(--muted)}.check input{accent-color:var(--accent)}.row{display:flex;gap:8px;flex-wrap:wrap}button{cursor:pointer;padding:7px 12px;border-radius:8px;border:1px solid var(--line);background:var(--panel-2);transition:border-color .15s,background .15s}button:hover{border-color:#3a4260;background:#222738}button.primary{border-color:#ff79c680;background:#ff79c624}button[disabled]{opacity:.55;cursor:progress}.hint{margin:8px 0 0;font-size:12px;color:var(--muted)}.stage-wrap{grid-area:stage;display:grid;grid-template-rows:auto minmax(0,1fr) auto;min-width:0}.stage-bar{padding:10px 18px;border-bottom:1px solid var(--line);background:var(--bg-soft);overflow-x:auto}.meta{display:flex;flex-wrap:wrap;gap:6px 18px;margin:0;font-size:12px}.meta div{display:flex;gap:6px}.meta dt{color:var(--muted)}.meta dd{margin:0;font-family:var(--mono);color:var(--text)}.stage{overflow:auto;padding:24px;background:radial-gradient(circle at 20% 10%,rgba(139,233,253,.05),transparent 55%),radial-gradient(circle at 85% 85%,rgba(255,121,198,.06),transparent 55%),#0a0b11}.stage-host{display:inline-block;min-width:80px;min-height:80px}.stage-host svg{display:block;max-width:100%;height:auto}.stage-host[data-render-state=rendering]{opacity:.55}.stage-foot{border-top:1px solid var(--line);background:var(--bg-soft);padding:8px 18px 12px;font-size:12px}.status{margin:0;color:var(--muted);font-family:var(--mono)}.error{margin-top:8px;padding:8px 10px;border:1px solid rgba(255,85,85,.5);border-radius:8px;background:#ff55551a;color:#ffb3b3;font-family:var(--mono);white-space:pre-wrap}.warnings{margin-top:8px;color:var(--warn)}.warnings summary{cursor:pointer}.warnings ul{margin:6px 0 0;padding-left:18px}@media(max-width:900px){.app{grid-template-columns:minmax(0,1fr);grid-template-areas:"top" "panel" "stage";grid-template-rows:auto auto minmax(0,1fr);height:auto;min-height:100%}.panel{border-right:0;border-bottom:1px solid var(--line)}}