:root{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#f0f0f0;color:#333}.game-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}h1{margin:0;font-size:1.75rem;font-weight:600}.info{font-size:20px}.ms-grid{display:grid;grid-template-columns:repeat(10,30px);gap:1px;background:#333;padding:1px}.ms-cell{width:30px;height:30px;background:#ccc;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;font-weight:700;font-size:14px;padding:0}.ms-cell.revealed{background:#fff}.ms-cell.flagged{color:#00f}.restart-btn{padding:10px 20px;font-size:18px;cursor:pointer}