/* カスタムスタイル */
.qr-code {
    text-align: center;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    margin: 20px 0;
}

.member-card {
    border: 2px solid #007bff;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.1);
}

.member-card h2 {
    color: #007bff;
    margin-bottom: 20px;
}

.member-info {
    background: white;
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.event-card {
    border: 1px solid #dee2e6;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    transition: transform 0.2s;
}

.event-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.admin-sidebar {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    height: fit-content;
}

.stats-card {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 20px;
}

.stats-card h3 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.btn-scan {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    border: none;
    color: white;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 1.1rem;
    transition: all 0.3s;
}

.btn-scan:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.table-responsive {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.form-control:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.alert {
    border-radius: 10px;
    border: none;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .member-card {
        padding: 20px;
    }
    
    .stats-card h3 {
        font-size: 1.5rem;
    }
    
    .btn-scan {
        padding: 12px 25px;
        font-size: 1rem;
    }
}