#playground-canvas{width:100%;height:100%;cursor:crosshair;background:var(--background-color-surface)}.playground-controls{display:flex;flex-direction:column;gap:1rem}.control-group{display:flex;flex-direction:column;gap:.5rem}.control-group label{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-color-muted)}.control-group select,.control-group input[type=range]{width:100%;padding:.5rem;font-size:.875rem;color:var(--text-color-surface);background:var(--background-color-surface);border:1px solid var(--draw-color-surface);border-radius:4px;cursor:pointer}.control-group select:focus,.control-group input[type=range]:focus{outline:none;border-color:var(--draw-color-primary)}.control-group input[type=range]{padding:0;height:24px}.control-buttons{display:flex;flex-direction:column;gap:.5rem}.control-buttons .is-start{display:block}.control-buttons .is-pause{display:none}.control-buttons.is-running .is-start{display:none}.control-buttons.is-running .is-pause{display:block}.lr-display{display:flex;justify-content:space-between;font-size:.75rem;color:var(--text-color-muted)}.playground-stats{display:flex;flex-direction:column;gap:.5rem}.playground-stats .stat-row{display:flex;justify-content:space-between;font-size:.875rem}.playground-stats .stat-row .stat-label{color:var(--text-color-muted)}.playground-stats .stat-row .stat-value{font-weight:600;font-family:monospace;color:var(--text-color-surface)}.playground-instructions{font-size:.875rem;line-height:1.6;color:var(--text-color-surface)}.playground-instructions p{margin-bottom:.75rem}.playground-instructions ul{margin:0;padding-left:1.25rem}.playground-instructions ul li{margin-bottom:.5rem}.playground-instructions .key{display:inline-block;padding:.125rem .375rem;font-size:.75rem;font-family:monospace;background:var(--draw-color-surface);border-radius:3px}.playground-instructions .class-1{color:#3498db;font-weight:600}.playground-instructions .class-2{color:#e67e22;font-weight:600}@media(max-width:768px){.control-buttons{flex-direction:row;flex-wrap:wrap}.control-buttons .button{flex:auto;min-width:100px}}