/**
 * Billing Dashboard Styles
 * LLM Usage & Cost Tracking Dashboard
 */

/* Main Content Area */
.billing-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

/* Page Header */
.billing-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.billing-title h1 {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.billing-title h1 i {
    color: var(--primary-color);
}

.billing-title p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.billing-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Form Controls */
.billing-select,
.billing-input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    min-width: 150px;
}

.billing-select-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-xs);
}

.billing-select:focus,
.billing-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.summary-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-light);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.summary-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.summary-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.summary-icon.cost {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.summary-icon.requests {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.summary-icon.tokens {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.summary-icon.avg {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

.summary-data {
    display: flex;
    flex-direction: column;
}

.summary-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.summary-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Charts Section */
.charts-section {
    margin-bottom: var(--spacing-xl);
}

.chart-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-light);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.chart-header h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chart-header h3 i {
    color: var(--primary-color);
}

.chart-container {
    height: 300px;
    position: relative;
}

/* Breakdowns Section */
.breakdowns-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.breakdown-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-light);
}

.breakdown-header {
    margin-bottom: var(--spacing-md);
}

.breakdown-header h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.breakdown-header h3 i {
    color: var(--primary-color);
}

.breakdown-content {
    min-height: 200px;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

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

.breakdown-item-name {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
}

.breakdown-item-name span {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.breakdown-item-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.breakdown-item-cost {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 80px;
    text-align: right;
}

.breakdown-item-percent {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    min-width: 50px;
    text-align: right;
}

.breakdown-bar {
    width: 100px;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.breakdown-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), #8b5cf6);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

/* Charges Table */
.charges-section {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-light);
}

.charges-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.charges-header h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.charges-header h3 i {
    color: var(--primary-color);
}

.charges-filters {
    display: flex;
    gap: var(--spacing-sm);
}

.charges-table-container {
    overflow-x: auto;
}

.charges-table {
    width: 100%;
    border-collapse: collapse;
}

.charges-table th,
.charges-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.charges-table th {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--bg-secondary);
}

.charges-table td {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.charges-table tbody tr:hover {
    background: var(--bg-secondary);
}

.loading-cell {
    text-align: center;
    padding: var(--spacing-xl) !important;
    color: var(--text-secondary);
}

.loading-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 150px;
    color: var(--text-secondary);
}

.charges-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

#pageInfo {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    max-width: 400px;
    width: 90%;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.modal-header h2 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-header h2 i {
    color: var(--primary-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.full-width {
    width: 100%;
}

.export-options {
    display: flex;
    gap: var(--spacing-md);
}

.export-option {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.export-option:has(input:checked) {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.export-option input {
    display: none;
}

.export-option span {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.export-option i {
    font-size: 1.25rem;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
    text-align: center;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state p {
    font-size: var(--font-size-sm);
}

/* Responsive */
@media (max-width: 768px) {
    .billing-header {
        flex-direction: column;
        align-items: stretch;
    }

    .billing-actions {
        justify-content: flex-start;
    }

    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .breakdowns-section {
        grid-template-columns: 1fr;
    }

    .charges-table {
        font-size: var(--font-size-xs);
    }

    .charges-table th,
    .charges-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .summary-cards {
        grid-template-columns: 1fr;
    }
}