:root{--bg: #0e1116;--panel: #161b22;--panel-2: #1c232d;--line: #2a323d;--text: #e6edf3;--muted: #8b949e;--accent: #f2711c;--accent-2: #ffa657;--ok: #3fb950}*{box-sizing:border-box}html,body{margin:0;height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);overflow:hidden}#app{display:grid;grid-template-columns:340px 1fr;height:100vh}#panel{background:var(--panel);border-right:1px solid var(--line);overflow-y:auto;padding:18px 16px 40px}#panel header h1{margin:0;font-size:20px;letter-spacing:.3px}#panel header .sub{margin:4px 0 0;color:var(--muted);font-size:12px;line-height:1.4}#access{margin:14px 0 4px;padding:10px 12px;border-radius:8px;background:var(--panel-2);border:1px solid var(--line)}#access.unlocked{border-color:var(--ok)}.access-status{font-size:12px;font-weight:600;color:var(--accent-2)}#access.unlocked .access-status{color:var(--ok)}.access-cta{display:inline-block;margin-top:8px;font-size:12px;font-weight:600;color:var(--accent);text-decoration:none}.access-cta:hover{text-decoration:underline}#access.unlocked{display:none}#watermark{position:absolute;top:0;right:0;bottom:0;left:0;z-index:3;pointer-events:none;background-repeat:repeat;opacity:.9}.step{border-top:1px solid var(--line);padding:16px 0 4px}.step h2{font-size:13px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);display:flex;align-items:center;gap:8px;margin:0 0 12px}.num{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--accent);color:#111;font-weight:700;font-size:12px}label.file{display:block;border:1px dashed var(--line);border-radius:8px;padding:14px;text-align:center;cursor:pointer;color:var(--muted);font-size:13px;transition:border-color .15s,color .15s}label.file:hover{border-color:var(--accent);color:var(--text)}label.file input{display:none}.meta{font-size:11px;color:var(--muted);margin-top:8px;line-height:1.5}.preview{margin-top:10px;min-height:4px}.preview img,.preview canvas{max-width:100%;border-radius:6px;border:1px solid var(--line);display:block;image-rendering:pixelated}label.row{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;margin:8px 0;color:var(--text)}label.check{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);margin:8px 0;cursor:pointer}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px}.grid2 label{display:flex;flex-direction:column;font-size:11px;color:var(--muted);gap:2px}input[type=range]{width:100%;accent-color:var(--accent)}select,input[type=number]{background:var(--panel-2);color:var(--text);border:1px solid var(--line);border-radius:6px;padding:5px 7px;font-size:12px}input[type=number]{width:64px}.val{display:block;text-align:right;font-size:11px;color:var(--accent-2);margin:-2px 0 6px}.actions{display:flex;flex-direction:column;gap:8px}button{background:var(--accent);color:#111;border:none;border-radius:8px;padding:11px;font-weight:600;font-size:13px;cursor:pointer;transition:filter .15s,opacity .15s}button:hover:not(:disabled){filter:brightness(1.08)}button:disabled{opacity:.4;cursor:not-allowed}button.ghost{background:transparent;color:var(--muted);border:1px solid var(--line);font-weight:500}button.ghost:hover:not(:disabled){color:var(--text);border-color:var(--muted)}.btn-row{display:flex;gap:6px;margin:8px 0}.btn-row button{flex:1}button.seg{background:var(--panel-2);color:var(--muted);border:1px solid var(--line);font-weight:600}button.seg.active{background:var(--accent);color:#111;border-color:var(--accent)}button.sm{padding:7px;font-size:12px}#paint-toggle.active{background:var(--ok);color:#06210d}#paint-hint.on{color:var(--ok)}#stage{position:relative}#viewport{position:absolute;top:0;right:0;bottom:0;left:0}#hint{position:absolute;left:50%;bottom:20px;transform:translate(-50%);color:var(--muted);font-size:12px;background:#0006;padding:6px 12px;border-radius:20px;pointer-events:none}#busy{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-content:center;gap:14px;justify-items:center;background:#0e1116b8;color:var(--text);font-size:13px;z-index:5}#busy[hidden]{display:none}.spinner{width:34px;height:34px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}