*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;background:linear-gradient(135deg,#ff9a9e 0%,#fecfef 50%,#fecfef 100%);min-height:100vh;display:flex;justify-content:center;align-items:center;padding:20px}.game-container{background:rgba(255,255,255,.9);border-radius:20px;padding:30px;box-shadow:0 10px 30px #0000001a;text-align:center}header h1{color:#ff6b6b;font-size:2.5rem;margin-bottom:20px;text-shadow:2px 2px 4px rgba(0,0,0,.1)}.game-info{display:flex;justify-content:center;align-items:center;gap:30px;margin-bottom:20px;flex-wrap:wrap}.info-item{display:flex;align-items:center;gap:8px;font-size:1.2rem;font-weight:700;color:#333}.reset-btn{font-size:2rem;background:none;border:none;cursor:pointer;transition:transform .2s}.reset-btn:hover{transform:scale(1.2)}.game-board{display:inline-block;border:3px solid #ff6b6b;border-radius:10px;background:#fff;margin:20px 0}.row{display:flex}.cell{width:30px;height:30px;border:1px solid #ddd;display:flex;align-items:center;justify-content:center;cursor:pointer;font-weight:700;font-size:14px;transition:all .2s;-webkit-user-select:none;user-select:none}.cell:hover:not(.revealed):not(.flagged){background:#ffeb3b;transform:scale(1.1)}.cell.revealed{background:#f5f5f5;cursor:default}.cell.mine{background:#ff4757;color:#fff}.cell.flagged{background:#ffa502;color:#fff}.cell[data-adjacent="1"]{color:#3498db}.cell[data-adjacent="2"]{color:#27ae60}.cell[data-adjacent="3"]{color:#e74c3c}.cell[data-adjacent="4"]{color:#9b59b6}.cell[data-adjacent="5"]{color:#f39c12}.cell[data-adjacent="6"]{color:#1abc9c}.cell[data-adjacent="7"]{color:#34495e}.cell[data-adjacent="8"]{color:#95a5a6}.difficulty-selector{margin-top:20px;display:flex;flex-direction:column;gap:10px;align-items:center}.difficulty-selector label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:1rem;color:#555}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);display:flex;justify-content:center;align-items:center;z-index:1000}.modal.hidden{display:none}.modal-content{background:white;padding:40px;border-radius:20px;text-align:center;box-shadow:0 10px 30px #0000004d}.modal-content h2{color:#ff6b6b;margin-bottom:15px}.modal-content p{margin-bottom:25px;color:#666}.btn{background:#ff6b6b;color:#fff;border:none;padding:12px 30px;border-radius:25px;font-size:1.1rem;cursor:pointer;transition:background .3s}.btn:hover{background:#ff5252}@media (max-width: 600px){.cell{width:25px;height:25px;font-size:12px}header h1{font-size:2rem}.game-info{gap:15px}}