:root{--bg:#121212;--panel-bg:#ffffff0d;--border:#ffffff1a;--text:#e0e0e0;--primary:#bb86fc;--primary-hover:#9965f4;--danger:#cf6679}*,:before,:after{box-sizing:border-box}body{background-color:var(--bg);color:var(--text);margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow-x:hidden}.app-container{width:100vw;height:100vh;display:flex;overflow:hidden}.left-panel{border-right:1px solid var(--border);flex-direction:column;gap:24px;width:50%;padding:0 24px 24px;display:flex;overflow-y:auto}.right-panel{background-color:#000;justify-content:center;align-items:center;width:50%;display:flex;position:relative}.card{background:var(--panel-bg);border:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;padding:20px}.card-header{justify-content:space-between;align-items:center;margin-bottom:16px;font-weight:600;display:flex}.form-group{flex-direction:column;gap:8px;margin-bottom:16px;display:flex}.form-group label{color:#aaa;font-size:14px}input[type=text],input[type=number],select,textarea{border:1px solid var(--border);color:#fff;background:#0000004d;border-radius:6px;outline:none;padding:10px 12px;font-family:inherit;transition:border-color .2s}input:focus,select:focus,textarea:focus{border-color:var(--primary)}.btn{background:var(--primary);color:#000;cursor:pointer;border:none;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-weight:600;transition:all .2s;display:flex}.btn:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn.danger{color:var(--danger);border:1px solid var(--danger);background:0 0}.btn.danger:hover{background:#cf66791a}.btn.outline{color:var(--primary);border:1px solid var(--primary);background:0 0}.file-input-wrapper{align-items:center;gap:10px;display:flex}.file-input-wrapper input[type=file]{display:none}.upload-btn{cursor:pointer;background:#ffffff1a;border-radius:6px;padding:8px 12px;font-size:14px;transition:background .2s}.upload-btn:hover{background:#ffffff26}.scene-list{flex-direction:column;gap:16px;display:flex}.header-bar{z-index:100;background-color:var(--bg);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;margin:-24px -24px 24px;padding:24px;display:flex;position:sticky;top:0}.loading-overlay{color:#fff;z-index:10;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#000c;flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.spinner{border:4px solid #ffffff1a;border-left-color:var(--primary);border-radius:50%;width:40px;height:40px;margin-bottom:16px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}