:root{color-scheme:dark;font-family:system-ui,sans-serif;background:#101720;color:#edf3fa;font-size:16px;line-height:1.55}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:1160px;margin:auto;padding:32px}header{padding-top:48px}h1{font-size:clamp(2.5rem,6vw,4.8rem);line-height:1.06;margin:18px 0;letter-spacing:-.04em}h2{font-size:1.35rem;margin:0 0 16px}h3{font-size:1rem}p{color:#b7c5d4}a{color:#77d7cd;text-underline-offset:4px}.eyebrow{letter-spacing:.13em;font-size:.8rem;color:#edb581}main{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}.panel{padding:26px;background:#1a2532;border:1px solid #324253;border-radius:16px}.panel-heading{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.badge{font-size:.75rem;color:#96e1d5;white-space:nowrap}.metrics{display:flex;justify-content:space-between;gap:10px;margin:22px 0}.metrics span{display:block;font-size:.75rem;color:#adc0d2}.metrics strong{display:block;font-size:2rem}.grid{--size:7;display:grid;grid-template-columns:repeat(var(--size),1fr);gap:5px}.cell{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:6px;font-weight:700;background:#293a4a;border:1px solid #3b5267;color:#d7e9f6}.unknown{background:#101b26;color:#667b8c;border-color:#263746}.blocked{background:#47353a;color:#e5a19f}.visited{border-color:#77b6a8}.rover{background:#f0b483;color:#20180f;border-color:#f0b483}.legend{font-size:.78rem}.controls{display:flex;gap:10px;margin:20px 0}button,select{font:inherit;background:#273c50;color:#f4f8fb;border:1px solid #587189;border-radius:7px;padding:9px 14px}button{cursor:pointer}button:hover{background:#385670}button:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #edb581;outline-offset:3px}select{width:100%}label{display:block;font-size:.88rem;color:#c8d8e8;margin:12px 0 6px}input[type=range]{width:100%;accent-color:#f0b483}summary{cursor:pointer;color:#98ddd4}pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:.72rem;max-height:410px;overflow:auto;padding:12px;background:#101b26;border-radius:6px}code{overflow-wrap:anywhere;font-size:.74rem;color:#e4be9d}.caveat{margin-top:24px;padding-top:20px;border-top:1px solid #415061}.caveat p{font-size:.9rem}footer{font-size:.8rem;color:#91a7ba;border-top:1px solid #293746}.brief{display:block;max-width:900px}.brief table{border-collapse:collapse;width:100%}.brief td,.brief th{border-bottom:1px solid #415061;text-align:left;padding:10px} @media(max-width:760px){main{grid-template-columns:1fr}header,main,footer{padding:22px}.panel{padding:20px}.metrics strong{font-size:1.7rem}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}

/* Basalt receipt-driven presentation; existing accessible map remains the fallback. */
header,main,footer{max-width:1320px}main{grid-template-columns:1.45fr 1fr}.panel{min-width:0}
.view-toolbar{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;margin:12px 0}.view-toolbar button{font-size:.8rem;padding:7px 12px}
.rover-stage{position:relative;border-radius:12px;overflow:hidden;background:#554741;min-height:240px}
#rover-canvas{width:100%;height:420px;display:block;touch-action:none;cursor:grab}
.rover-label{position:absolute;top:12px;left:12px;background:#101720d9;padding:4px 10px;border-radius:6px;color:#7cf1ee;font:600 .75rem ui-monospace,monospace;pointer-events:none}
.cue{font-size:.82rem;min-height:2.5em;color:#c8d8e8}.grid{padding:12px}
button[aria-pressed=true]{border-color:#3fe0e8;color:#7cf1ee}button:disabled{opacity:.5;cursor:default}canvas:focus-visible{outline:3px solid #edb581;outline-offset:3px}
[hidden]{display:none!important}
@media(max-width:760px){main{grid-template-columns:1fr}#rover-canvas{height:320px}.metrics span{font-size:.65rem}.view-toolbar button{padding:6px 9px}}