:root{font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;background:#f7f7f6;color:#1f1f1d}a{color:inherit;text-decoration:none}button,input,select{font:inherit}#root{min-height:100vh}:root{--bg: #f7f7f6;--panel: #ffffff;--border: rgba(0, 0, 0, .12);--text: #111111;--muted: #6f6d68;--muted-strong: #4b4a47;--fill: #f6f6f6;--fill-strong: #e7e7e7;--radius: 8px;--ctrl-height: 32px;--pad-x: 12px}.app-shell{display:flex;flex-direction:column;gap:14px;padding:22px 24px 28px;max-width:1680px;margin:0 auto;color:var(--text);font-size:12.5px;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg)}.app-header h1{margin:0 0 3px;font-size:26px;letter-spacing:-.01em;font-weight:600}.subtitle{margin:0;color:var(--muted-strong);font-size:13px;font-weight:400}.content{display:grid;grid-template-columns:320px 1fr;gap:20px;align-items:start}.controls{display:flex;flex-direction:column;gap:16px;position:sticky;top:18px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px 16px 20px}.group{display:flex;flex-direction:column;gap:10px}.group+.group{margin-top:12px}.group-title{margin:0;font-size:10px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:600}.control-group{display:flex;flex-direction:column;gap:6px}.label{font-weight:500;font-size:12px;color:#2b2a28}input[type=file],input[type=number],select{border:1px solid var(--border);border-radius:var(--radius);padding:0 var(--pad-x);background:#fbfbfb;color:var(--text);height:var(--ctrl-height)}input[type=number]{width:160px}.file-input{padding:0 var(--pad-x);height:var(--ctrl-height);border-radius:var(--radius);display:inline-flex;align-items:center}.file-row{position:relative;display:grid;grid-template-columns:auto 1fr;width:100%;border:1px solid var(--border);border-radius:var(--radius);background:#fbfbfb;min-height:var(--ctrl-height);overflow:hidden}.file-row:focus-within{outline:2px solid rgba(0,0,0,.12);outline-offset:2px}.file-row[data-state=loaded]{background:#ededeb;border-color:#0003}.file-button-label{display:inline-flex;align-items:center;justify-content:center;padding:0 12px;min-height:var(--ctrl-height);border-right:1px solid var(--border);background:var(--fill);color:#1e1d1b;font-weight:500;border-radius:0}.file-name-label{display:inline-flex;align-items:center;padding:0 12px;min-height:var(--ctrl-height);color:#4b4a47;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-radius:0}.file-row[data-state=loaded] .file-name-label{color:#1a1a1a}.file-input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}input[type=range]{accent-color:#2f2d2a;height:20px}select{cursor:pointer;padding-right:calc(var(--pad-x) + 16px)}.meta{margin:0;font-size:11px;color:var(--muted)}.error-inline{color:#9f2f2f}.buttons{display:flex;gap:10px;flex-wrap:wrap}.buttons.subtle button{border:1px solid var(--border);background:var(--fill)}.segmented{display:inline-flex;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;width:100%}.segmented.full{display:flex}.segmented button{flex:1;border:none;background:var(--fill);color:#1e1d1b;padding:0 10px;border-right:1px solid var(--border);border-radius:0;font-size:12px;min-height:var(--ctrl-height);display:flex;align-items:center;justify-content:center}.segmented button:last-child{border-right:none}.segmented button.active{background:var(--fill-strong);font-weight:600;box-shadow:none}.inline-actions{display:flex;align-items:center;gap:10px;margin-top:4px;flex-wrap:wrap}button{border:1px solid var(--border);background:var(--fill);color:#1e1d1b;border-radius:var(--radius);padding:0 10px;font-weight:500;cursor:pointer;min-height:var(--ctrl-height);display:inline-flex;align-items:center;justify-content:center}button:hover{background:#ededed}button:active{background:#e2e2e2}button.primary{background:#f0f0f0;border-color:#00000029;color:#1b1b1b}button.ghost{background:transparent;border-color:#0000001f;color:#2b2a28}button.secondary{background:var(--panel);color:#1e1d1b}.link-button{border:1px solid var(--border);background:var(--panel);color:#1e1d1b;padding:0 10px;border-radius:calc(var(--radius) - 2px);font-weight:500;cursor:pointer;min-height:var(--ctrl-height);display:inline-flex;align-items:center;justify-content:center}.canvas-panel{display:flex;flex-direction:column;gap:8px}.preview-frame{display:inline-block;background:#f6f6f6;border:1px solid var(--border);border-radius:var(--radius);padding:10px}.footer-inline{display:flex;align-items:center;gap:6px;margin-top:8px;color:#7c7a75;font-size:12px;flex-wrap:wrap}.footer-inline .learn-more{color:#6f6d68;text-decoration:underline;font-size:12px}.footer-inline .learn-more:hover{color:#3a392f;text-decoration:underline}canvas{display:block;background:#f8f7f5;width:100%;max-width:1200px;height:auto}@media(max-width:1400px){.content{grid-template-columns:1fr}.controls{position:static}canvas{margin:0 auto}}.modal-backdrop{position:fixed;inset:0;background:#0000002e;display:flex;align-items:center;justify-content:center;padding:20px;z-index:10}.modal{background:#fff;border:1px solid #d9d9d9;border-radius:var(--radius);box-shadow:0 8px 26px #00000014;padding:16px 16px 14px;max-width:460px;width:100%}.modal h3{margin:0 0 8px;font-size:14px;font-weight:600}.modal p{margin:0 0 8px;color:#3e3c38;font-size:12.5px;line-height:1.5}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}