/* Billing Page Styles */

/* Stat Cards */
.stat-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-light);
}

.stat-content {
    flex: 1;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
}

.stat-icon.spent {
    background: linear-gradient(135deg, var(--primary-blue), #1d4ed8);
}

.stat-icon.wallet {
    background: linear-gradient(135deg, var(--success-green), #059669);
}

.stat-icon.pending {
    background: linear-gradient(135deg, var(--warning-yellow), #d97706);
}

.stat-icon.due {
    background: linear-gradient(135deg, var(--danger-red), #dc2626);
}

/* Wallet Section */
.wallet-section .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.wallet-actions {
    display: flex;
    gap: 0.75rem;
}

.wallet-info {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
}

.balance-display {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue), #1d4ed8);
    color: var(--white);
    border-radius: 16px;
    min-width: 200px;
}

.balance-amount {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.balance-label {
    font-size: 0.875rem;
    opacity: 0.9;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.wallet-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
}

.wallet-stat {
    text-align: center;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--light-gray);
}

.wallet-stat .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.wallet-stat .stat-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    font-weight: 600;
}

/* Recent Transactions */
.recent-transactions {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.recent-transactions h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 600;
}

.transaction-list {
    margin-bottom: 1rem;
}

.transaction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 0.75rem;
    transition: all 0.3s ease;
}

.transaction-item:last-child {
    margin-bottom: 0;
}

.transaction-item:hover {
    background: var(--light-gray);
}

.transaction-item.credit {
    border-left: 4px solid var(--success-green);
}

.transaction-item.debit {
    border-left: 4px solid var(--accent-orange);
}

.transaction-type {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.transaction-type i {
    width: 16px;
    text-align: center;
}

.transaction-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

.transaction-amount {
    font-weight: 700;
    font-size: 1rem;
}

.transaction-amount.credit {
    color: var(--success-green);
}

.transaction-amount.debit {
    color: var(--accent-orange);
}

.view-all-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-blue);
    font-weight: 600;
    text-decoration: none;
    transition: gap 0.3s ease;
}

.view-all-btn:hover {
    gap: 0.75rem;
    text-decoration: none;
}

/* Billing Tabs */
.billing-tabs {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 2rem;
}

.tab-headers {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: var(--light-gray);
}

.tab-header {
    flex: 1;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    color: var(--text-medium);
    border-bottom: 3px solid transparent;
}

.tab-header:hover {
    background: var(--white);
    color: var(--text-dark);
}

.tab-header.active {
    background: var(--white);
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue);
}

.tab-content {
    display: none;
    padding: 1.5rem;
}

.tab-content.active {
    display: block;
}

/* Invoices Tab */
.invoices-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.invoices-filters {
    display: flex;
    gap: 1rem;
}

.invoices-filters select {
    min-width: 150px;
}

.invoices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.invoice-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    background: var(--white);
    position: relative;
}

.invoice-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-light);
}

.invoice-card[data-status="overdue"] {
    border-left: 4px solid var(--danger-red);
}

.invoice-card[data-status="pending"] {
    border-left: 4px solid var(--warning-yellow);
}

.invoice-card[data-status="paid"] {
    border-left: 4px solid var(--success-green);
}

.invoice-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.invoice-info h3 {
    color: var(--text-dark);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.invoice-date {
    font-size: 0.875rem;
    color: var(--text-light);
    margin: 0;
}

.invoice-details {
    margin-bottom: 1.5rem;
}

.invoice-items {
    margin-bottom: 1rem;
}

.invoice-items .item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--light-gray);
    font-size: 0.875rem;
}

.invoice-items .item:last-child {
    border-bottom: none;
}

.invoice-total {
    text-align: right;
    font-size: 1.125rem;
    color: var(--text-dark);
}

.overdue-notice {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--danger-red);
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: 0.75rem;
}

.invoice-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.invoice-actions .btn {
    flex: 1;
    min-width: 80px;
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
}

/* Status Badges */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.pending {
    background: var(--warning-yellow);
    color: var(--white);
}

.status-badge.paid {
    background: var(--success-green);
    color: var(--white);
}

.status-badge.overdue {
    background: var(--danger-red);
    color: var(--white);
}

.status-badge.success {
    background: var(--success-green);
    color: var(--white);
}

.status-badge.failed {
    background: var(--danger-red);
    color: var(--white);
}

/* Payment History Tab */
.payments-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.payments-filters {
    display: flex;
    gap: 1rem;
}

.payments-table {
    overflow-x: auto;
}

.payment-method {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

/* Payment Methods Tab */
.methods-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.methods-header h3 {
    color: var(--text-dark);
    font-size: 1.25rem;
    margin: 0;
}

.payment-methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.payment-method-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    background: var(--white);
    position: relative;
}

.payment-method-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-light);
}

.payment-method-card.default {
    border-color: var(--primary-blue);
    background: linear-gradient(135deg, var(--white) 0%, var(--primary-blue-ultra-light) 100%);
}

.method-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.method-icon {
    width: 50px;
    height: 50px;
    background: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-blue);
}

.method-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.default-badge {
    background: var(--primary-blue);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.method-details h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.method-details p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin: 0.25rem 0;
}

.payment-method-card.add-new {
    border: 2px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--light-gray);
}

.payment-method-card.add-new:hover {
    border-color: var(--primary-blue);
    background: var(--primary-blue-ultra-light);
    transform: translateY(-2px);
}

.add-method-content {
    text-align: center;
    color: var(--text-light);
}

.add-method-content i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
    color: var(--primary-blue);
}

.add-method-content span {
    font-weight: 600;
}

/* Quick Actions */
.quick-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.quick-actions .btn {
    padding: 1rem 1.5rem;
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .wallet-info {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .balance-display {
        margin: 0 auto;
    }
    
    .wallet-actions {
        flex-direction: column;
    }
    
    .tab-headers {
        flex-direction: column;
    }
    
    .tab-header {
        justify-content: center;
        border-bottom: none;
        border-left: 3px solid transparent;
    }
    
    .tab-header.active {
        border-left-color: var(--primary-blue);
    }
    
    .invoices-header,
    .payments-header,
    .methods-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .invoices-filters,
    .payments-filters {
        flex-direction: column;
    }
    
    .invoices-grid {
        grid-template-columns: 1fr;
    }
    
    .payment-methods-grid {
        grid-template-columns: 1fr;
    }
    
    .invoice-actions {
        flex-direction: column;
    }
    
    .quick-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .stat-card {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .wallet-stats {
        grid-template-columns: 1fr;
    }
    
    .transaction-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .transaction-amount {
        align-self: flex-end;
    }
    
    .method-header {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        text-align: center;
    }
}