:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#111318;--panel:#191d24;--panel-2:#21262f;--border:#2c333d;--text:#dde3ea;--muted:#8b94a3;--accent:#5ea1ff;--danger:#ff6b6b}*{box-sizing:border-box}[hidden]{display:none!important}html,body{height:100%;margin:0;overflow:hidden}body{background:var(--bg);color:var(--text);grid-template:"topbar topbar""sidebar viewport"1fr/260px 1fr;font-family:Segoe UI,system-ui,-apple-system,sans-serif;display:grid}.topbar{background:var(--panel);border-bottom:1px solid var(--border);grid-area:topbar;align-items:baseline;gap:16px;padding:10px 16px;display:flex}.topbar h1{margin:0;font-size:16px;font-weight:600}.model-name{color:var(--muted);font-size:13px}.menu-toggle,.menu-close,.sidebar-backdrop{display:none}.file-open{border:1px solid var(--border);background:var(--panel-2);color:var(--text);cursor:pointer;border-radius:6px;padding:10px 12px;font-size:13px}.file-open:hover{border-color:var(--accent)}.sidebar{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;grid-area:sidebar;gap:10px;padding:14px;display:flex;overflow-y:auto}.sidebar h2{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0;font-size:12px}.model-list{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.model-list button{text-align:left;border:1px solid var(--border);background:var(--panel-2);width:100%;color:var(--text);cursor:pointer;border-radius:6px;padding:8px 10px;font-size:13px}.model-list button:hover{border-color:var(--accent)}.model-list button.active{border-color:var(--accent);color:var(--accent);background:#5ea1ff1f}.model-list .muted{color:var(--muted);font-size:13px}.hint{color:var(--muted);margin:0;font-size:12px;line-height:1.5}.hint code{background:var(--panel-2);border:1px solid var(--border);border-radius:4px;padding:1px 4px;font-size:11px}.viewport{outline:none;grid-area:viewport;position:relative}.viewport canvas{width:100%;height:100%;display:block}.drop-overlay{border:3px dashed var(--accent);z-index:40;pointer-events:none;background:#111318bf;place-items:center;display:grid;position:fixed;inset:0}.drop-overlay p{color:var(--accent);font-size:18px}.status-overlay{z-index:30;background:#1113188c;place-items:center;display:grid;position:fixed;inset:0}.status-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;flex-direction:column;align-items:center;gap:12px;padding:20px 28px;display:flex}.status-card p{color:var(--text);margin:0;font-size:14px}.spinner{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.error-toast{border:1px solid var(--danger);color:#ffd7d7;z-index:50;background:#3a1d1d;border-radius:8px;max-width:min(560px,90vw);padding:10px 16px;font-size:13px;position:fixed;bottom:18px;left:50%;transform:translate(-50%);box-shadow:0 4px 16px #0006}@media (max-width:768px){body{grid-template-columns:1fr;grid-template-areas:"topbar""viewport"}.topbar{padding:max(10px, env(safe-area-inset-top)) 12px 10px;align-items:center;gap:10px}.menu-toggle{border:1px solid var(--border);background:var(--panel-2);width:40px;height:40px;color:var(--text);cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:8px;flex:none;justify-content:center;align-items:center;font-size:18px;line-height:1;display:inline-flex}.menu-toggle:active{background:var(--border)}.topbar h1{font-size:15px}.model-name{white-space:nowrap;text-overflow:ellipsis;text-align:right;flex:auto;min-width:0;overflow:hidden}.sidebar{z-index:60;width:min(82vw,320px);padding:max(14px, env(safe-area-inset-top)) 14px max(14px, env(safe-area-inset-bottom));border-right:1px solid var(--border);transition:transform .25s;position:fixed;top:0;bottom:0;left:0;transform:translate(-100%);box-shadow:4px 0 24px #00000073}.sidebar.open{transform:translate(0)}.sidebar-header{justify-content:space-between;align-items:center;gap:8px;display:flex}.menu-close{width:36px;height:36px;color:var(--muted);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;justify-content:center;align-items:center;font-size:16px;line-height:1;display:inline-flex}.menu-close:active{color:var(--text)}.sidebar-backdrop{z-index:50;opacity:0;pointer-events:none;background:#0000008c;transition:opacity .25s;display:block;position:fixed;inset:0}.sidebar-backdrop.open{opacity:1;pointer-events:auto}.model-list button,.file-open{min-height:44px;font-size:14px}.error-toast{bottom:calc(18px + env(safe-area-inset-bottom))}}@media (prefers-reduced-motion:reduce){.sidebar,.sidebar-backdrop{transition:none}}