:root{--bg: #0f172a;--panel: #1e293b;--panel-2: #273449;--text: #e2e8f0;--muted: #94a3b8;--accent: #6366f1;--accent-hover: #4f46e5;--border: #334155;--error: #f87171;color-scheme:dark}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.app{max-width:1320px;margin:0 auto;padding:32px 20px 60px}header h1{margin:0 0 4px;font-size:28px}header .sub{margin:0 0 24px;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));align-items:start;gap:20px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px}.panel h2{font-size:15px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:20px 0 12px}.panel h2:first-child{margin-top:0}.dropzone{border:2px dashed var(--border);border-radius:10px;padding:28px 16px;text-align:center;color:var(--muted);cursor:pointer;transition:.15s;word-break:break-all}.dropzone:hover,.dropzone.dragging{border-color:var(--accent);color:var(--text);background:var(--panel-2)}.dropzone.has-file{border-style:solid;border-color:var(--accent);color:var(--text)}.filelist{margin:14px 0 4px}.filelist-head{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);margin-bottom:8px}.filelist ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.filelist li{display:flex;align-items:center;gap:8px;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;padding:8px 10px;font-size:13px}.filelist .num{flex:0 0 auto;width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;border-radius:50%;font-size:11px;font-weight:700}.filelist .fname{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.filelist .controls{display:flex;gap:4px;flex:0 0 auto}.filelist .controls button{width:26px;height:26px;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:6px;cursor:pointer;font-size:12px;line-height:1}.filelist .controls button:hover:not(:disabled){border-color:var(--accent)}.filelist .controls button:disabled{opacity:.35;cursor:default}button.link{background:none;border:none;color:var(--accent);cursor:pointer;font-size:12px;padding:0}button.link:hover{color:var(--accent-hover);text-decoration:underline}.toggle{display:inline-flex;align-items:center;gap:6px;float:right;margin:0;text-transform:none;letter-spacing:0;font-size:12px;cursor:pointer}.toggle input{accent-color:var(--accent)}.tabs{display:flex;gap:8px;margin-bottom:14px}.tabs button{flex:1;padding:8px;background:var(--panel-2);color:var(--muted);border:1px solid var(--border);border-radius:8px;cursor:pointer}.tabs button.active{background:var(--accent);color:#fff;border-color:var(--accent)}label{display:block;font-size:13px;color:var(--muted);margin-bottom:14px}label input[type=text],label select{display:block;width:100%;margin-top:6px;padding:9px 10px;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px}label input[type=range]{width:100%;margin-top:6px;accent-color:var(--accent)}label input[type=color]{width:100%;height:38px;margin-top:6px;background:none;border:1px solid var(--border);border-radius:8px}label input[type=file]{display:block;margin-top:6px;color:var(--text);font-size:13px}.row{display:flex;gap:14px}.row label{flex:1}.hint{font-size:12px;color:var(--muted);margin:-8px 0 14px}button.primary,a.primary{display:inline-block;width:100%;text-align:center;padding:12px;background:var(--accent);color:#fff;border:none;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;transition:.15s}button.primary:hover,a.primary:hover{background:var(--accent-hover)}button.primary:disabled{opacity:.6;cursor:default}a.download{margin-bottom:14px}.error{color:var(--error);font-size:14px;margin:12px 0 0}.preview{width:100%;height:560px;border:1px solid var(--border);border-radius:8px;background:#fff}.placeholder{border:1px dashed var(--border);border-radius:8px;padding:40px 20px;text-align:center;color:var(--muted);min-height:200px;display:flex;align-items:center;justify-content:center}