*{box-sizing:border-box}body{color:#d6dae0;background:#16181d;margin:0;font-family:system-ui,sans-serif}#app{height:100vh;display:flex}#sidebar{background:#1e2128;border-right:1px solid #2c313a;flex:none;width:320px;padding:16px;overflow-y:auto}#sidebar h1{margin:0 0 8px;font-size:18px}.top-nav{margin-bottom:16px}.top-nav a{color:#5b9bd5;font-size:13px;text-decoration:none}.top-nav a:hover{text-decoration:underline}#about-panel{border-top:1px solid #2c313a;margin-top:16px;padding-top:16px}#about-panel h2{margin:0 0 12px;font-size:16px}#about-panel p{color:#a8b0bc;margin:0 0 10px;font-size:13px;line-height:1.5}#about-panel a{color:#5b9bd5}#model-description{color:#8b93a0;font-size:12px}#viewport{flex:1;min-width:0;position:relative}.field{margin-bottom:10px;font-size:13px;display:block}.field span{color:#a8b0bc;margin-bottom:3px;display:block}.field .unit{color:#667;margin-left:4px;display:inline}.field input,.field select{color:#d6dae0;background:#14161b;border:1px solid #2c313a;border-radius:4px;width:100%;padding:6px 8px;font-size:13px}#actions{gap:8px;margin-top:16px;display:flex}#actions button{color:#fff;cursor:pointer;background:#3a6ea5;border:none;border-radius:4px;flex:1;padding:8px;font-size:13px}#actions button:disabled{color:#667;cursor:wait;background:#2c313a}#status{color:#8b93a0;white-space:pre-wrap;margin-top:12px;font-size:12px}#status.error{color:#e07777}#spinner{z-index:10;pointer-events:none;opacity:0;background:#16181db3;justify-content:center;align-items:center;transition:opacity .2s;display:flex;position:absolute;inset:0}#spinner.active{opacity:1}.spinner-ring{border:4px solid #2c313a;border-top-color:#5b9bd5;border-radius:50%;width:64px;height:64px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}