.mining-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
        }
        
        .mining-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
            margin-bottom: 25px;
        }
        
        .stat-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .stat-card h3 {
            font-size: 0.9rem;
            margin-bottom: 10px;
            color: #aaa;
        }
        
        .stat-card .value {
            font-size: 1.8rem;
            font-weight: bold;
            color: #fff;
        }
        
        .mining-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            margin-bottom: 20px;
        }
        
        .mining-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .mining-title {
            font-weight: bold;
            font-size: 1.3rem;
            color: #fff;
        }
        
        .status-badge {
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: bold;
        }
        
        .status-registered {
            background: rgba(46, 204, 113, 0.2);
            color: #2ecc71;
        }
        
        .status-not-registered {
            background: rgba(231, 76, 60, 0.2);
            color: #e74c3c;
        }
        
        .status-warning {
            background: rgba(241, 196, 15, 0.2);
            color: #f1c40f;
        }
        
        .mining-details {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
            margin-bottom: 20px;
        }
        
        .mining-detail {
            padding: 15px;
            background: rgba(0, 0, 0, 0.2);
            border-radius: 8px;
        }
        
        .mining-detail .label {
            font-size: 0.9rem;
            color: #aaa;
            margin-bottom: 5px;
        }
        
        .mining-detail .amount {
            font-size: 1.2rem;
            font-weight: bold;
            color: #fff;
        }
        
        .action-buttons {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin-top: 20px;
        }
        
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: #aaa;
        }
        
        .empty-state i {
            font-size: 3rem;
            margin-bottom: 15px;
            color: #555;
        }
        
        .progress-container {
            margin: 20px 0;
        }
        
        .progress-label {
            display: flex;
            justify-content: space-between;
            margin-bottom: 5px;
            color: #aaa;
            font-size: 0.9rem;
        }
        
        .progress-bar {
            height: 8px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
            overflow: hidden;
        }
        
        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #3498db, #2980b9);
            border-radius: 4px;
            transition: width 0.5s ease;
        }
        
        .warning-box {
            background: rgba(241, 196, 15, 0.1);
            border: 1px solid rgba(241, 196, 15, 0.3);
            border-radius: 8px;
            padding: 15px;
            margin: 20px 0;
            color: #f1c40f;
        }
        
        @media (max-width: 768px) {
            .mining-stats {
                grid-template-columns: 1fr;
            }
            
            .mining-details {
                grid-template-columns: 1fr;
            }
            
            .action-buttons {
                flex-direction: column;
            }
        }
        .reward-timer {
    margin-top: 10px;
    color: #888;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    font-style: italic;
}
.reward-timer i {
    color: #f0c419; /* golden clock icon */
}