:root{--bg:#0a0a14;--surface:#ffffff08;--border:#ffffff0f;--text:#e4e4e7;--muted:#71717a}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);justify-content:center;align-items:center;min-height:100vh;font-family:system-ui,-apple-system,sans-serif;display:flex}#app{text-align:center}header{flex-wrap:wrap;justify-content:center;align-items:center;gap:20px;margin-bottom:16px;display:flex}header h1{font-size:28px;font-weight:700}.scores{gap:8px;display:flex}.score-box{background:var(--surface);border:1px solid var(--border);text-align:center;border-radius:8px;min-width:60px;padding:6px 14px}.score-box .label{margin-bottom:2px;font-size:14px;display:block}.score-box span:last-child{font-size:18px;font-weight:700}.best-box span:last-child{color:#fbbf24;font-size:14px}select{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:8px;padding:6px 12px;font-size:12px}.board{border:1px solid var(--border);background:#ffffff05;border-radius:8px;gap:1px;width:fit-content;margin:0 auto;padding:4px;display:grid}.cell{cursor:pointer;width:34px;height:34px;color:var(--text);background:#ffffff0a;border:none;border-radius:3px;justify-content:center;align-items:center;font-family:system-ui,sans-serif;font-size:15px;font-weight:700;transition:background-color .1s;display:flex}.cell:hover{background:#ffffff14}.cell.revealed{cursor:default;background:#ffffff05}.cell.flagged{font-size:14px}.cell.mine{font-size:16px}.c1{color:#60a5fa}.c2{color:#4ade80}.c3{color:#f87171}.c4{color:#c084fc}.c5{color:#f97316}.c6{color:#22d3ee}.c7{color:#e4e4e7}.c8{color:#71717a}#restart{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:10px;margin-top:16px;padding:10px 28px;font-size:14px;font-weight:500;transition:background-color .2s,border-color .2s}#restart:hover{background:#a855f71a;border-color:#a855f74d}