/* Nạp Tiền Page Styles - Minimal White Design */
.naptien-container {
    max-width: 900px;
}

.nav-pills .nav-link {
    border-radius: 6px;
    margin: 0 3px;
    padding: 8px 16px;
    border: 1px solid #dee2e6;
    background: #fff;
    color: #495057;
    transition: all 0.2s;
}

.nav-pills .nav-link:hover {
    background: #f8f9fa;
    border-color: #adb5bd;
}

.nav-pills .nav-link.active {
    background: #fff;
    border-color: #495057;
    color: #495057;
    font-weight: 600;
}

.recharge-form .form-control:focus,
.recharge-form .form-select:focus {
    border-color: #495057;
    box-shadow: 0 0 0 0.2rem rgba(73, 80, 87, 0.1);
}

.recharge-form .form-control,
.recharge-form .form-select {
    border-color: #dee2e6;
}

.btn-primary {
    background: #495057;
    border-color: #495057;
    color: #fff;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: #343a40;
    border-color: #343a40;
}

/* Compact spacing */
.naptien-section {
    padding: 2rem 0;
}

.naptien-header {
    margin-bottom: 1.5rem;
}

.naptien-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.naptien-header p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

.balance-card {
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.balance-card h6 {
    font-size: 0.875rem;
    color: #6c757d;
    margin-bottom: 0.5rem;
}

.balance-card h2 {
    font-size: 1.5rem;
    color: #212529;
    margin-bottom: 0;
}

.payment-methods-card {
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 8px;
}

.payment-methods-card .card-header {
    background: #fff;
    border-bottom: 1px solid #dee2e6;
    padding: 1rem 1.25rem;
}

.payment-methods-card .card-body {
    padding: 1.25rem;
}

.recharge-form .mb-4 {
    margin-bottom: 1rem !important;
}

.recharge-form .mb-3 {
    margin-bottom: 0.75rem !important;
}

.recharge-form .form-label {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.recharge-form .input-group-lg .form-control,
.recharge-form .form-select-lg {
    padding: 0.5rem 0.75rem;
    font-size: 0.95rem;
}

.recharge-form .btn-lg {
    padding: 0.625rem 1.25rem;
    font-size: 0.95rem;
}

.info-section .card {
    border: 1px solid #dee2e6;
    border-radius: 6px;
}

.info-section .card-body {
    padding: 1rem;
}

.info-section .card-body h6 {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.info-section .card-body p {
    font-size: 0.8rem;
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .nav-pills {
        flex-direction: column;
    }
    
    .nav-pills .nav-link {
        margin: 3px 0;
    }
    
    .naptien-section {
        padding: 1.5rem 0;
    }
}