.board{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;padding:10px;background:var(--soft);border-radius:12px;max-width:470px;margin:auto}.cell{aspect-ratio:1;display:flex;align-items:center;justify-content:center;font:bold 1.7rem ui-monospace,monospace;background:white;border-radius:6px;border:1px solid var(--line);position:relative}.cell small{position:absolute;bottom:1px;right:5px;font:11px Arial;color:var(--muted)}.cell.wall{background:var(--ink);color:white}.cell.battery{background:var(--warn)}.cell.robot{background:var(--accent);color:white;outline:3px solid var(--accent);outline-offset:-2px}.cell.base{border:3px solid var(--ok)}.status-row{display:flex;justify-content:space-between;margin-bottom:12px}.palette{display:flex;gap:8px;flex-wrap:wrap}.palette button{font-size:.85rem;padding:9px 12px}.program{padding:0;list-style:none;min-height:40px}.program>li,.loop-body>li{background:var(--soft);border:1px solid var(--line);border-radius:8px;margin:8px 0;padding:8px}.block-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.block-row>span{font-weight:bold;font-size:.9rem}.block-tools{display:flex;gap:4px;flex:none}.block-tools button{min-height:34px;width:34px;padding:3px;font-size:.85rem}.loop-body{list-style:none;padding-left:15px}.loop-count{width:65px;font-size:.9rem}.trace{font-size:.83rem;max-height:220px;overflow:auto;padding-left:22px}.trace li{margin:2px 0}#loop-tools{background:var(--warn);padding:12px;margin-top:12px;border-radius:8px}#loop-tools p{font-size:.9rem}.mission-tabs button{flex:1}@media(max-width:420px){.cell{font-size:1.4rem}.block-row{flex-wrap:wrap}.block-tools{margin-left:auto}}