:root{color-scheme:light;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;overflow:hidden;background:#fff;color:#1a1a1a}.app{display:flex;flex-direction:column;height:100dvh;width:100%;user-select:none;-webkit-user-select:none}.header{display:flex;align-items:center;justify-content:space-between;padding:.6rem 1rem;background:#fefce8;border-bottom:2px solid #fbbf24;flex-shrink:0}.header h1{font-size:1.25rem;font-weight:700;color:#92400e;letter-spacing:-.02em}.header-actions{display:flex;gap:.5rem}.btn{display:inline-flex;align-items:center;gap:.35rem;padding:.4rem .85rem;border:2px solid transparent;border-radius:.5rem;font-size:.85rem;font-weight:600;cursor:pointer;transition:background .15s,transform .1s;font-family:inherit}.btn:active{transform:scale(.96)}.btn-save{background:#34d399;color:#064e3b;border-color:#059669}.btn-save:hover{background:#6ee7b7}.btn-clear{background:#fca5a5;color:#7f1d1d;border-color:#ef4444}.btn-clear:hover{background:#fecaca}.toolbar{display:flex;align-items:center;gap:1rem;padding:.5rem 1rem;background:#f9fafb;border-bottom:1px solid #e5e7eb;flex-shrink:0;flex-wrap:wrap}.toolbar-section{display:flex;align-items:center;gap:.5rem}.toolbar-label{font-size:.75rem;font-weight:600;color:#6b7280;text-transform:uppercase;letter-spacing:.05em}.brush-btn{width:2.2rem;height:2.2rem;border-radius:50%;border:3px solid #d1d5db;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:border-color .15s,transform .1s;background:#fff}.brush-btn:hover{border-color:#9ca3af}.brush-btn.active{border-color:#f59e0b;box-shadow:0 0 0 2px #f59e0b4d}.brush-btn:active{transform:scale(.92)}.brush-dot{border-radius:50%;background:#1a1a1a}.color-swatch{width:1.8rem;height:1.8rem;border-radius:50%;border:3px solid #d1d5db;cursor:pointer;transition:border-color .15s,transform .1s}.color-swatch:hover{border-color:#9ca3af}.color-swatch.active{border-color:#1a1a1a;box-shadow:0 0 0 2px #0003}.color-swatch:active{transform:scale(.92)}.eraser-btn{padding:.3rem .7rem;border:2px solid #d1d5db;border-radius:.5rem;background:#fff;cursor:pointer;font-size:.8rem;font-weight:600;font-family:inherit;transition:all .15s}.eraser-btn:hover{border-color:#9ca3af}.eraser-btn.active{background:#dbeafe;border-color:#3b82f6;color:#1e40af}.canvas-container{flex:1;position:relative;overflow:hidden;background:#fff;touch-action:none}.canvas-container canvas{display:block;width:100%;height:100%;cursor:crosshair}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:100}.confirm-box{background:#fff;border-radius:.75rem;padding:1.5rem;max-width:20rem;width:90%;text-align:center;box-shadow:0 20px 60px #0000004d}.confirm-box p{margin-bottom:1rem;font-size:1rem;color:#374151}.confirm-actions{display:flex;gap:.5rem;justify-content:center}.confirm-actions .btn{min-width:5rem;justify-content:center}.btn-cancel{background:#e5e7eb;color:#374151;border-color:#9ca3af}.btn-cancel:hover{background:#d1d5db}.btn-confirm-clear{background:#ef4444;color:#fff;border-color:#dc2626}.btn-confirm-clear:hover{background:#f87171}