.main-placeholder{max-width:800px;margin:0 auto}.controls-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-md)}.controls-grid .full-width{grid-column:span 2}.color-input{display:flex;gap:var(--spacing-sm)}.color-input input[type=color]{width:50px;height:40px;padding:2px;border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer}.color-input input[type=text]{flex:1;font-family:monospace;text-transform:uppercase}input[type=range]{width:100%;height:8px;-webkit-appearance:none;appearance:none;background:var(--bg-body);border-radius:var(--radius-sm);outline:0}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;background:var(--color-primary);border-radius:50%;cursor:pointer}.range-value{display:inline-block;margin-left:var(--spacing-sm);font-weight:600;color:var(--color-primary)}.preview-section{background:var(--bg-card);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin-top:var(--spacing-xl);border:1px solid var(--color-border);text-align:center}.preview-section h2{margin-bottom:var(--spacing-lg);color:var(--color-text)}.preview-container{display:flex;justify-content:center;align-items:center;min-height:250px;background:repeating-linear-gradient(45deg,var(--bg-body),var(--bg-body) 10px,var(--bg-card) 10px,var(--bg-card) 20px);border-radius:var(--radius-md);padding:var(--spacing-lg);margin-bottom:var(--spacing-lg)}#canvas{border-radius:var(--radius-sm);box-shadow:0 4px 12px rgba(0,0,0,.2)}.download-options{display:flex;justify-content:center;gap:var(--spacing-md);flex-wrap:wrap}.generated-url{margin-top:var(--spacing-lg);text-align:left}.generated-url label{display:block;font-size:.85rem;color:var(--color-text-muted);margin-bottom:var(--spacing-xs)}.url-display{display:flex;gap:var(--spacing-sm);background:var(--bg-body);padding:var(--spacing-sm);border-radius:var(--radius-md);border:1px solid var(--color-border)}.url-display code{flex:1;font-family:monospace;font-size:.85rem;color:var(--color-text);word-break:break-all}.btn-copy{padding:var(--spacing-xs) var(--spacing-sm);background:0 0;border:none;cursor:pointer;font-size:1rem}.btn-copy:hover{opacity:.7}.presets-section,.sizes-section{background:var(--bg-card);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin-top:var(--spacing-xl);border:1px solid var(--color-border)}.presets-section h3,.sizes-section h3{margin-bottom:var(--spacing-lg);color:var(--color-text)}.presets-grid{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.preset-btn{padding:var(--spacing-sm) var(--spacing-lg);background:var(--bg-body);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);cursor:pointer;transition:all .2s}.preset-btn:hover{border-color:var(--color-primary);color:var(--color-primary)}.sizes-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-sm)}.size-btn{padding:var(--spacing-sm);background:var(--bg-body);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);cursor:pointer;transition:all .2s;font-size:.85rem}.size-btn:hover{border-color:var(--color-primary);color:var(--color-primary)}@media (max-width:600px){.controls-grid{grid-template-columns:1fr}.controls-grid .full-width{grid-column:span 1}.sizes-grid{grid-template-columns:repeat(2,1fr)}}