*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0f1420;--panel:#171e2e;--panel-2:#1d2639;--line:#2a3550;--text:#e7ecf5;--muted:#93a0b8;--accent:#4f8ef7;--accent-2:#f7b84f}html,body{height:100%}body{background:var(--bg);color:var(--text);flex-direction:column;font-family:Segoe UI,Tahoma,Leelawadee UI,sans-serif;display:flex;overflow:hidden}#topBanner{border-bottom:1px solid var(--line);height:54px;color:var(--text);background:linear-gradient(90deg,#1d2b52 0%,#274170 55%,#6a4a12 100%);flex-shrink:0;align-items:center;gap:12px;padding:0 18px;text-decoration:none;display:flex}#topBanner:hover .banner-cta{background:#ffca5f}.banner-logo{font-size:24px}.banner-text{flex-direction:column;min-width:0;line-height:1.25;display:flex}.banner-text strong{letter-spacing:.4px;font-size:15px}.banner-sub{color:#b9c6de;white-space:nowrap;text-overflow:ellipsis;font-size:11.5px;overflow:hidden}.banner-cta{background:var(--accent-2);color:#201503;white-space:nowrap;border-radius:999px;margin-left:auto;padding:7px 14px;font-size:12.5px;font-weight:700}#app{flex:1;min-height:0;display:flex}#sidebar{background:var(--panel);border-right:1px solid var(--line);width:330px;min-width:330px;height:100%;padding:16px 16px 40px;overflow-y:auto}.app-header h1{letter-spacing:.5px;font-size:22px}.app-header .thai{color:var(--accent-2);font-weight:600}.subtitle{color:var(--muted);margin-top:2px;font-size:12px}.panel{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;margin-top:14px;padding:12px}.panel h2{text-transform:uppercase;letter-spacing:1px;color:var(--accent);margin-bottom:10px;font-size:13px}.row{margin-bottom:10px}.row:last-child{margin-bottom:0}label{color:var(--text);margin-bottom:4px;font-size:13px;display:block}label output{float:right;color:var(--accent-2);font-weight:600}input[type=range]{width:100%;accent-color:var(--accent)}select,input[type=text],textarea{background:var(--bg);width:100%;color:var(--text);border:1px solid var(--line);border-radius:6px;padding:7px 9px;font-family:inherit;font-size:14px}textarea{resize:vertical}select:focus,input:focus,textarea:focus{outline:1px solid var(--accent)}.checkbox-row label{cursor:pointer;align-items:center;gap:8px;display:flex}.checkbox-row input{accent-color:var(--accent)}.file-label{border:1px dashed var(--line);color:var(--muted);cursor:pointer;border-radius:6px;padding:8px;font-size:12.5px;display:block}.file-label:hover{border-color:var(--accent);color:var(--text)}.file-label input{width:100%;margin-top:6px;font-size:12px;display:block}.btn{border:1px solid var(--line);background:var(--bg);width:100%;color:var(--text);cursor:pointer;border-radius:8px;padding:10px;font-family:inherit;font-size:14px}.btn:hover{border-color:var(--accent)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.btn.primary:hover{filter:brightness(1.1)}.btn-col{flex-direction:column;gap:8px;display:flex}.btn.donate{text-align:center;color:#ff9db8;background:#2b1a2e;border-color:#a34a6f;font-size:13px;text-decoration:none;display:block}.btn.donate:hover{background:#3a2340;border-color:#ff9db8}.mini-btn{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:0 0;border-radius:6px;margin-top:6px;padding:4px 8px;font-size:12px}.mini-btn:hover{color:#ff7b7b;border-color:#ff7b7b}.hint{color:var(--muted);margin-top:8px;font-size:11.5px;line-height:1.5}.app-footer{color:var(--muted);text-align:center;margin-top:14px;font-size:12px}#viewport{flex:1;position:relative}#canvas3d{width:100%;height:100%;display:block}#loading{color:var(--muted);pointer-events:none;background:#0f1420d9;justify-content:center;align-items:center;font-size:16px;transition:opacity .3s;display:flex;position:absolute;inset:0}#loading.hidden{opacity:0}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-thumb{background:var(--line);border-radius:5px}::-webkit-scrollbar-track{background:0 0}