:root{--bg: #0a0b0d;--panel: rgba(255, 255, 255, .035);--panel-strong: rgba(255, 255, 255, .06);--border: rgba(255, 255, 255, .09);--border-bright: rgba(255, 255, 255, .16);--text: #eceef1;--muted: #939aa3;--gold: #d8c08a;--gold-soft: rgba(216, 192, 138, .16);--silver: #c6cbd2;--danger: #e06a5f;--radius: 16px;--shadow: 0 20px 60px rgba(0, 0, 0, .55);font-synthesis:none}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Inter,Roboto,sans-serif;color:var(--text);background:radial-gradient(1100px 700px at 18% -10%,rgba(216,192,138,.1),transparent 60%),radial-gradient(900px 600px at 100% 110%,rgba(150,165,190,.08),transparent 55%),var(--bg);-webkit-font-smoothing:antialiased;letter-spacing:.1px}.wordmark{font-weight:600;letter-spacing:2px;text-transform:uppercase;font-size:13px}.wordmark b{color:var(--gold);font-weight:700}.muted{color:var(--muted)}.gold{color:var(--gold)}.glass{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);backdrop-filter:blur(22px) saturate(120%);-webkit-backdrop-filter:blur(22px) saturate(120%);box-shadow:var(--shadow)}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;font:inherit;font-weight:560;padding:10px 16px;border-radius:11px;border:1px solid var(--border-bright);background:var(--panel-strong);color:var(--text);transition:transform .12s ease,background .2s ease,border-color .2s ease,opacity .2s}.btn:hover{background:#ffffff1a;border-color:var(--border-bright)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{border:1px solid rgba(216,192,138,.55);background:linear-gradient(180deg,#d8c08a47,#d8c08a1f);color:#f6eed9}.btn-primary:hover{background:linear-gradient(180deg,#d8c08a66,#d8c08a2e)}.btn-ghost{background:transparent;border-color:var(--border)}.btn-sm{padding:6px 11px;font-size:13px;border-radius:9px}input,textarea{font:inherit;color:var(--text);width:100%;background:#00000040;border:1px solid var(--border);border-radius:11px;padding:11px 13px;outline:none;transition:border-color .2s,box-shadow .2s}input:focus,textarea:focus{border-color:#d8c08a80;box-shadow:0 0 0 3px var(--gold-soft)}label.field{display:block}label.field span{display:block;font-size:12px;color:var(--muted);margin:0 0 6px 2px}.auth-wrap{height:100%;display:grid;place-items:center;padding:24px}.auth-card{width:380px;max-width:100%;padding:30px}.auth-card h1{margin:6px 0 2px;font-size:22px;font-weight:620}.auth-card .sub{color:var(--muted);font-size:13px;margin-bottom:22px}.stack{display:flex;flex-direction:column;gap:14px}.row{display:flex;align-items:center;gap:10px}.spread{display:flex;align-items:center;justify-content:space-between}.link{color:var(--gold);cursor:pointer;background:none;border:none;font:inherit;padding:0}.err{color:var(--danger);font-size:13px;min-height:16px}.check{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;cursor:pointer}.check input{width:auto}.studio{height:100%;display:grid;grid-template-columns:270px 1fr;gap:16px;padding:16px}.sidebar{display:flex;flex-direction:column;padding:16px;gap:12px;min-height:0}.brandbar{display:flex;align-items:center;justify-content:space-between;padding:2px 4px 10px;border-bottom:1px solid var(--border)}.threads{overflow:auto;display:flex;flex-direction:column;gap:6px;flex:1;min-height:0}.thread-item{text-align:left;padding:11px 12px;border-radius:11px;cursor:pointer;border:1px solid transparent;background:transparent;color:var(--text);font:inherit;display:flex;flex-direction:column;gap:3px}.thread-item:hover{background:var(--panel)}.thread-item.active{background:var(--panel-strong);border-color:var(--border-bright)}.thread-item .t-title{font-size:14px;font-weight:540;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.thread-item .t-meta{font-size:11px;color:var(--muted)}.pill{font-size:10px;padding:2px 7px;border-radius:999px;border:1px solid var(--border);color:var(--muted)}.pill.gold{color:var(--gold);border-color:#d8c08a66}.main{display:grid;grid-template-rows:1fr auto;min-height:0}.workspace{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;min-height:0;padding:16px}.stage{display:flex;flex-direction:column;min-height:0;gap:12px}.stage-head{display:flex;align-items:center;justify-content:space-between}.stage-title{font-size:16px;font-weight:600}model-viewer{width:100%;flex:1;min-height:320px;border-radius:14px;background:radial-gradient(60% 50% at 50% 30%,rgba(216,192,138,.08),transparent 70%),#00000059;border:1px solid var(--border);--poster-color: transparent}.empty-stage{flex:1;display:grid;place-items:center;color:var(--muted);border:1px dashed var(--border);border-radius:14px;text-align:center}.chat{display:flex;flex-direction:column;min-height:0}.transcript{overflow:auto;display:flex;flex-direction:column;gap:14px;padding:4px 4px 14px;flex:1;min-height:0}.turn{display:flex;flex-direction:column;gap:8px;padding-left:10px;border-left:2px solid transparent}.turn.active{border-left-color:var(--gold)}.turn.active .bubble.pic{border-color:var(--border-bright);background:var(--panel-strong);box-shadow:0 0 0 1px var(--gold-soft)}.bubble{padding:11px 14px;border-radius:13px;max-width:92%;font-size:14px;line-height:1.45}.bubble.user{align-self:flex-end;background:var(--gold-soft);border:1px solid rgba(216,192,138,.3)}.bubble.pic{align-self:flex-start;background:var(--panel-strong);border:1px solid var(--border)}.bubble.err{border-color:#e06a5f80;color:#f0b8b2}.turn-actions{display:flex;gap:8px;align-self:flex-start;align-items:center}.thumb{cursor:pointer;border:1px solid var(--border);background:transparent;border-radius:9px;padding:4px 9px;font-size:13px;color:var(--muted)}.thumb.on{color:var(--gold);border-color:#d8c08a80;background:var(--gold-soft)}.view-btn{font-size:12px}.composer{padding:14px 16px;display:flex;gap:10px;align-items:flex-end}.composer textarea{resize:none;min-height:44px;max-height:160px}.stars{display:inline-flex;gap:4px}.star{cursor:pointer;font-size:20px;color:var(--border-bright);line-height:1;background:none;border:none;padding:0}.star.on{color:var(--gold)}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:grid;place-items:center;padding:24px;z-index:20;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{width:560px;max-width:100%;padding:24px}.modal h2{margin:0 0 4px;font-size:18px}.keyrow{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--border);gap:12px}.keyrow code{color:var(--silver);font-size:13px}.reveal{background:#d8c08a1a;border:1px solid rgba(216,192,138,.4);border-radius:11px;padding:12px 14px;margin:12px 0;word-break:break-all}.reveal code{color:var(--gold);font-size:13px}::-webkit-scrollbar{width:9px;height:9px}::-webkit-scrollbar-thumb{background:#ffffff1f;border-radius:99px}::-webkit-scrollbar-track{background:transparent}.spin{width:16px;height:16px;border:2px solid var(--border-bright);border-top-color:var(--gold);border-radius:50%;display:inline-block;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}