@import url('https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@700&display=swap');
body{font-family:'Source Sans 3',sans-serif;background:#f4f8ff;color:#0f2440;padding:24px}
#controls{display:flex;align-items:center;gap:10px;margin-bottom:10px}
#grid{display:grid;grid-template-columns:repeat(6,42px);gap:8px}
.cell{width:42px;height:42px;border-radius:8px;background:#e2e8f0;display:flex;align-items:center;justify-content:center;border:1px solid #c9d4e3}
.cell.full{background:#10b981;color:#ffffff;border-color:#10b981}