/* ===================================================
   HusAzQuantiLabs — Credit Tracking Page Styles
   =================================================== */

/* --- Loading & Error --- */
.credits-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 64px 0;
    color: var(--text-secondary, #888);
}

.credits-error {
    padding: 16px 20px;
    border-radius: 10px;
    background: rgba(255, 59, 48, 0.1);
    color: #ff3b30;
    border: 1px solid rgba(255, 59, 48, 0.25);
    font-size: 0.9rem;
}

/* --- Credit Balance Card --- */
.credits-balance-section {
    margin-bottom: 24px;
}

.credits-balance-card {
    background: var(--card-bg, #1e1e2e);
    border-radius: 14px;
    padding: 28px;
    border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.credits-balance-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.credits-balance-header h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text, #fff);
    margin: 0;
}

.credits-badge {
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    background: var(--accent, #0e8f85);
    color: #fff;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* Progress bar */
.credits-balance-bar-wrapper {
    margin-bottom: 20px;
}

.credits-balance-bar {
    height: 14px;
    background: var(--surface, #2a2a3e);
    border-radius: 7px;
    overflow: hidden;
    position: relative;
}

.credits-used-bar {
    height: 100%;
    border-radius: 7px;
    background: linear-gradient(90deg, #0e8f85, #12b5a8);
    transition: width 0.8s ease;
    min-width: 2px;
}

.credits-used-bar.warning {
    background: linear-gradient(90deg, #f5a623, #f7c948);
}

.credits-used-bar.danger {
    background: linear-gradient(90deg, #ff3b30, #ff6b6b);
}

.credits-balance-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.82rem;
    color: var(--text-secondary, #888);
    margin-top: 8px;
}

/* Balance stats grid */
.credits-balance-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.credits-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.credits-stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary, #888);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.credits-stat-value {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text, #fff);
}

/* Lot details */
.credits-lots-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text, #fff);
    margin: 20px 0 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border, rgba(255, 255, 255, 0.08));
}

.credits-lots-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.credits-lot-item {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 16px;
    align-items: center;
    padding: 10px 14px;
    border-radius: 8px;
    background: var(--surface, #2a2a3e);
    font-size: 0.85rem;
}

.credits-lot-source {
    font-weight: 500;
    color: var(--text, #fff);
}

.credits-lot-amount,
.credits-lot-dates {
    color: var(--text-secondary, #888);
}

.credits-lot-status {
    font-size: 0.75rem;
    padding: 2px 10px;
    border-radius: 12px;
    font-weight: 500;
}

.credits-lot-status.active {
    background: rgba(14, 143, 133, 0.15);
    color: #0e8f85;
}

.credits-lot-status.expired {
    background: rgba(255, 59, 48, 0.15);
    color: #ff3b30;
}

/* --- Summary Cards --- */
.credits-summary-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.credits-card {
    background: var(--card-bg, #1e1e2e);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.credits-card-label {
    font-size: 0.78rem;
    color: var(--text-secondary, #888);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 500;
}

.credits-card-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text, #fff);
    line-height: 1.2;
}

.credits-card-sub {
    font-size: 0.78rem;
    color: var(--text-secondary, #888);
}

/* --- Section Cards (chart, breakdown, billing) --- */
.credits-section-card {
    background: var(--card-bg, #1e1e2e);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.credits-section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text, #fff);
    margin: 0 0 16px;
}

/* --- Daily Cost Trend Chart (CSS bar chart) --- */
.credits-daily-chart {
    width: 100%;
    overflow-x: auto;
}

.credits-chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 3px;
    height: 180px;
    padding: 0 4px;
    min-width: fit-content;
}

.credits-chart-bar {
    flex: 1;
    min-width: 12px;
    max-width: 24px;
    background: linear-gradient(180deg, #0e8f85, #12b5a860);
    border-radius: 4px 4px 0 0;
    position: relative;
    cursor: pointer;
    transition: opacity 0.2s;
}

.credits-chart-bar:hover {
    opacity: 0.8;
}

.credits-chart-bar:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-bg, #1e1e2e);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.15));
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text, #fff);
    white-space: nowrap;
    z-index: 10;
    pointer-events: none;
}

.credits-chart-x-labels {
    display: flex;
    gap: 3px;
    padding: 6px 4px 0;
    min-width: fit-content;
}

.credits-chart-x-label {
    flex: 1;
    min-width: 12px;
    max-width: 24px;
    font-size: 0.6rem;
    color: var(--text-secondary, #888);
    text-align: center;
    overflow: hidden;
}

.credits-chart-empty {
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary, #888);
    font-size: 0.9rem;
}

/* --- Service Breakdown --- */
.credits-service-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.credits-service-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.credits-service-bar-track {
    flex: 1;
    height: 28px;
    background: var(--surface, #2a2a3e);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.credits-service-bar-fill {
    height: 100%;
    border-radius: 6px;
    display: flex;
    align-items: center;
    padding: 0 10px;
    font-size: 0.78rem;
    font-weight: 500;
    color: #fff;
    white-space: nowrap;
    min-width: fit-content;
    transition: width 0.6s ease;
}

.credits-service-name {
    min-width: 160px;
    font-size: 0.85rem;
    color: var(--text, #fff);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.credits-service-cost {
    min-width: 70px;
    text-align: right;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text, #fff);
}

.credits-service-total {
    display: flex;
    justify-content: space-between;
    padding-top: 12px;
    margin-top: 8px;
    border-top: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    font-weight: 600;
    color: var(--text, #fff);
}

/* --- Billing Info --- */
.credits-billing-details {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 20px;
    font-size: 0.88rem;
}

.credits-billing-label {
    color: var(--text-secondary, #888);
    font-weight: 500;
}

.credits-billing-value {
    color: var(--text, #fff);
}

/* --- Actions --- */
.credits-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 8px;
}

.credits-refresh-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* --- Light mode overrides --- */
[data-theme="light"] .credits-balance-card,
[data-theme="light"] .credits-card,
[data-theme="light"] .credits-section-card {
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
}

[data-theme="light"] .credits-lot-item {
    background: rgba(0, 0, 0, 0.03);
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .credits-summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    .credits-balance-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .credits-lot-item {
        grid-template-columns: 1fr 1fr;
    }
    .credits-service-name {
        min-width: 100px;
    }
}

@media (max-width: 600px) {
    .credits-summary-cards {
        grid-template-columns: 1fr;
    }
    .credits-balance-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}