/* ============================================
   MT5 Backtests Styles
   ============================================ */

/* --- Tab Navigation --- */
.backtest-tabs {
    display: flex;
    flex-direction: row;
    gap: 4px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
    overflow-x: auto;
}

.backtest-tab {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.2s, border-color 0.2s;
}

.backtest-tab:hover {
    color: var(--text-primary);
}

.backtest-tab.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
    font-weight: 600;
}

.backtest-tab .tab-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-left: 8px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    vertical-align: middle;
}

.backtest-tab .tab-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

/* --- Stats Bar --- */
.backtest-stats-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.backtest-stat {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    min-width: 140px;
    flex: 1;
    position: relative;
}

.backtest-stat[data-tooltip] {
    cursor: help;
}

.backtest-stat[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    width: 300px;
    padding: 10px 14px;
    background: #0f1723;
    border: 1px solid var(--border-color, rgba(102, 126, 234, 0.2));
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    color: var(--text-secondary, #94a3b8);
    font-size: 12px;
    font-weight: 400;
    line-height: 1.5;
    white-space: normal;
    text-transform: none;
    letter-spacing: normal;
    text-align: left;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 1000;
}

.backtest-stat[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

body.light-theme .backtest-stat[data-tooltip]::after {
    background: rgb(255, 255, 255);
    border-color: rgba(102, 126, 234, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    color: #334155;
}

.backtest-stat .stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.backtest-stat .stat-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.backtest-stat .stat-value-meta {
    display: block;
    font-size: 11px;
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: 2px;
    letter-spacing: 0.2px;
}

/* --- Monthly Performance Table --- */
.monthly-perf-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.monthly-perf-table th,
.monthly-perf-table td {
    padding: 6px 10px;
    text-align: right;
    border: 1px solid var(--border-color);
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}

.monthly-perf-table th {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
    text-align: center;
    font-family: inherit;
}

.monthly-perf-table td.positive {
    color: #22c55e;
}

.monthly-perf-table td.negative {
    color: #ef4444;
}

.monthly-perf-table td.positive-bg-1 {
    background: rgba(34, 197, 94, 0.05);
}

.monthly-perf-table td.positive-bg-2 {
    background: rgba(34, 197, 94, 0.10);
}

.monthly-perf-table td.positive-bg-3 {
    background: rgba(34, 197, 94, 0.18);
}

.monthly-perf-table td.negative-bg-1 {
    background: rgba(239, 68, 68, 0.05);
}

.monthly-perf-table td.negative-bg-2 {
    background: rgba(239, 68, 68, 0.10);
}

.monthly-perf-table td.negative-bg-3 {
    background: rgba(239, 68, 68, 0.18);
}

.monthly-perf-table td.total-col {
    font-weight: 700;
    border-left: 2px solid var(--border-color);
}

.monthly-perf-table td.empty {
    color: var(--text-secondary);
    opacity: 0.4;
}

/* --- Monthly Summary Chart (per-year bar chart) --- */
.backtest-monthly-chart-container {
    margin-top: 20px;
    padding: 20px;
    background: var(--bg-secondary, #1e293b);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.backtest-monthly-chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.backtest-monthly-chart-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.backtest-toggle-group {
    display: flex;
    background: var(--toggle-bg, rgba(255,255,255,0.05));
    border-radius: 8px;
    padding: 4px;
    border: 1px solid var(--border-color);
}

.backtest-toggle-btn {
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary, #94a3b8);
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.2s;
}

.backtest-toggle-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 2px 4px rgba(102, 126, 234, 0.3);
}

.backtest-toggle-btn:hover:not(.active) {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
}

/* --- Data Tables --- */
.backtest-portfolio-table,
.backtest-strategy-table,
.backtest-trade-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    margin-bottom: 16px;
}

.backtest-portfolio-table th,
.backtest-strategy-table th,
.backtest-trade-table th {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
    text-align: left;
    padding: 10px 12px;
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.backtest-portfolio-table td,
.backtest-strategy-table td,
.backtest-trade-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.backtest-portfolio-table tr:hover,
.backtest-strategy-table tr:hover,
.backtest-trade-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.backtest-portfolio-table tbody tr {
    cursor: pointer;
}

/* --- Delete Button --- */
.backtest-delete-btn {
    background: transparent;
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    opacity: 0.5;
    transition: opacity 0.2s, background 0.2s;
}

.backtest-delete-btn:hover {
    opacity: 1;
    background: rgba(239, 68, 68, 0.15);
}

/* --- Download Button --- */
.backtest-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(90deg, var(--accent-primary, #667eea), #764ba2);
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    transition: opacity 0.2s;
}

.backtest-download-btn:hover {
    opacity: 0.85;
}

/* --- Loading Spinner --- */
.backtest-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(102, 126, 234, 0.2);
    border-top-color: #667eea;
    border-radius: 50%;
    animation: backtest-spin 0.8s linear infinite;
    margin: 0 auto;
}

@keyframes backtest-spin {
    to { transform: rotate(360deg); }
}

/* --- Staleness Indicators --- */
.staleness-fresh {
    color: #22c55e;
}

.staleness-stale {
    color: #f59e0b;
}

.staleness-old {
    color: #ef4444;
}

/* --- Metadata Card --- */
.backtest-metadata {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
}

.backtest-metadata .meta-item {
    flex: 1;
    min-width: 160px;
}

.backtest-metadata .meta-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.backtest-metadata .meta-value {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

/* --- Chart Container --- */
.backtest-chart-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    height: 500px;
    position: relative;
    margin-bottom: 20px;
}

/* --- Section Title --- */
.backtest-section-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    margin-top: 24px;
}

/* --- Empty State --- */
.backtest-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.backtest-empty h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.backtest-empty p {
    font-size: 14px;
    max-width: 400px;
    margin: 0 auto;
}

/* --- Pagination --- */
.backtest-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding: 12px 0;
}

.backtest-pagination button {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.2s;
}

.backtest-pagination button:hover {
    background: var(--bg-primary);
}

.backtest-pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.backtest-pagination .page-info {
    font-size: 13px;
    color: var(--text-secondary);
}