:root{font-family:system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--bg: #f5f7fa;--card: #fff;--text: #213547;--text-muted: #667085;--text-heading: #1a1a2e;--border: #d0d5dd;--border-hover: #98a2b3;--btn-bg: #e4e7ec;--btn-bg-hover: #d0d5dd;--btn-text: #344054;--focus-ring: rgba(54, 162, 235, .2);--delete-bg: #fee4e2;--delete-color: #d92d20;--shadow: 0 1px 3px rgba(0, 0, 0, .1);color:var(--text);background-color:var(--bg)}[data-theme=dark]{--bg: #121218;--card: #1e1e2e;--text: #e0e0e8;--text-muted: #a0a0b0;--text-heading: #f0f0f8;--border: #3a3a4a;--border-hover: #5a5a6a;--btn-bg: #2a2a3a;--btn-bg-hover: #3a3a4a;--btn-text: #d0d0e0;--focus-ring: rgba(54, 162, 235, .3);--delete-bg: rgba(217, 45, 32, .15);--delete-color: #ff6b6b;--shadow: 0 1px 3px rgba(0, 0, 0, .3)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}#root{max-width:1100px;margin:0 auto;padding:1rem}.app header{text-align:center;margin-bottom:1.5rem}.app header h1{font-size:1.8rem;margin:.5rem 0;color:var(--text-heading)}.layout{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}@media(max-width:768px){.layout{grid-template-columns:1fr}.preview{order:-1}}.editor{display:flex;flex-direction:column;gap:1rem}.chart-controls{background:var(--card);border-radius:8px;padding:1rem;box-shadow:var(--shadow)}.title-input{width:100%;padding:.5rem .75rem;border:1px solid var(--border);border-radius:6px;font-size:1rem;margin-bottom:.75rem;background:var(--card);color:var(--text)}.title-input:focus{outline:none;border-color:#36a2eb;box-shadow:0 0 0 2px var(--focus-ring)}.control-buttons{display:flex;gap:.5rem}.btn{padding:.5rem 1rem;border:none;border-radius:6px;font-size:.875rem;font-weight:500;cursor:pointer;transition:background-color .2s}.share-btn{background:#36a2eb;color:#fff;flex:1}.share-btn:hover{background:#2b8fd4}.random-btn{background:#f0e6ff;color:#7c3aed}.random-btn:hover{background:#e4d4ff}[data-theme=dark] .random-btn{background:#7c3aed33;color:#a78bfa}[data-theme=dark] .random-btn:hover{background:#7c3aed4d}.reset-btn{background:var(--btn-bg);color:var(--btn-text)}.reset-btn:hover{background:var(--btn-bg-hover)}.style-picker{background:var(--card);border-radius:8px;padding:1rem;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:.75rem}.picker-row{display:flex;align-items:center;gap:.75rem}.picker-label{width:48px;font-size:.8rem;font-weight:500;color:var(--text-muted);flex-shrink:0}.color-options{display:flex;gap:.4rem}.color-swatch{width:28px;height:28px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:border-color .2s,transform .15s}.color-swatch:hover{transform:scale(1.15)}.color-swatch.active{border-color:var(--text);box-shadow:0 0 0 2px var(--card),0 0 0 4px var(--text-muted)}.style-options{display:flex;gap:.4rem}.style-btn{padding:.3rem .75rem;background:var(--btn-bg);color:var(--btn-text);border:1px solid transparent;font-size:.8rem}.style-btn:hover{background:var(--btn-bg-hover)}.style-btn.active{border-color:#36a2eb;background:var(--focus-ring);color:#36a2eb}.theme-toggle{padding:.3rem .75rem;background:var(--btn-bg);color:var(--btn-text);font-size:.8rem}.theme-toggle:hover{background:var(--btn-bg-hover)}.item-list{background:var(--card);border-radius:8px;padding:1rem;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:.5rem}.item-editor{display:flex;align-items:center;gap:.5rem}.item-label{width:120px;min-width:80px;padding:.4rem .6rem;border:1px solid var(--border);border-radius:6px;font-size:.875rem;background:var(--card);color:var(--text)}.item-label:focus{outline:none;border-color:#36a2eb;box-shadow:0 0 0 2px var(--focus-ring)}.item-slider{flex:1;accent-color:#36a2eb}.item-value{width:2rem;text-align:right;font-size:.875rem;font-variant-numeric:tabular-nums;color:var(--text-muted)}.item-delete{width:28px;height:28px;padding:0;border:none;border-radius:6px;background:transparent;color:var(--text-muted);font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s,color .2s}.item-delete:hover:not(:disabled){background:var(--delete-bg);color:var(--delete-color)}.item-delete:disabled{opacity:.3;cursor:not-allowed}.add-item{padding:.5rem;border:1px dashed var(--border);border-radius:6px;background:transparent;color:var(--text-muted);font-size:.875rem;cursor:pointer;transition:border-color .2s,color .2s}.add-item:hover{border-color:#36a2eb;color:#36a2eb}.preview{background:var(--card);border-radius:8px;padding:1.5rem;box-shadow:var(--shadow);position:sticky;top:1rem}.copy-buttons{display:flex;gap:.5rem;margin-top:.75rem}.copy-btn{flex:1;background:var(--btn-bg);color:var(--btn-text);border:1px solid var(--border)}.copy-btn:hover{background:var(--btn-bg-hover)}.footer{display:flex;align-items:center;justify-content:center;gap:.5rem;margin-top:2rem;padding:1rem 0;font-size:.8rem;color:var(--text-muted)}.footer a{color:var(--text-muted);transition:color .2s;display:flex;align-items:center}.footer a:hover{color:var(--text)}