/* ==========================================================================
   TabulatorChartOverlay — Collapsible Chart Panel Styles
   Uses PortfolioShield design tokens from 1-foundation.css
   ========================================================================== */

/* Container */
.ps-chart-overlay {
    background: var(--bg-card, #1a1a28);
    border: 1px solid var(--border-color, #2a2a3c);
    border-radius: var(--radius-lg, 12px);
    margin-bottom: var(--space-md, 12px);
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.ps-chart-overlay:hover {
    border-color: var(--border-hover, rgba(255, 255, 255, 0.12));
}

/* ── Header ─────────────────────────────────────────────────────────────── */

.ps-chart-overlay__header {
    display: flex;
    align-items: center;
    gap: var(--space-md, 12px);
    padding: var(--space-xs, 4px) var(--space-md, 12px);
    min-height: 28px;
}

/* Toggle button */
.ps-chart-overlay__toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs, 4px);
    background: none;
    border: none;
    color: var(--text-muted, #64748b);
    cursor: pointer;
    padding: var(--space-xs, 4px) var(--space-sm, 8px);
    border-radius: var(--radius-sm, 6px);
    font-family: var(--font-family, 'Inter', sans-serif);
    font-size: var(--font-size-xs, 0.7rem);
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    transition: color 0.2s ease, background 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.ps-chart-overlay__toggle:hover {
    color: var(--accent-blue, #4a6cf7);
    background: rgba(74, 108, 247, 0.08);
}

.ps-chart-overlay__toggle svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.ps-chart-overlay__toggle-label {
    line-height: 1;
}

/* Expanded state: highlight toggle */
.ps-chart-overlay--expanded .ps-chart-overlay__toggle {
    color: var(--accent-blue, #4a6cf7);
}

/* ── Controls (preset select + data count) ──────────────────────────────── */

.ps-chart-overlay__controls {
    display: flex;
    align-items: center;
    gap: var(--space-md, 12px);
    flex: 1;
    min-width: 0;
}

/* Preset dropdown */
.ps-chart-overlay__preset-select {
    background: var(--bg-secondary, #12121c);
    color: var(--text-secondary, #94a3b8);
    border: 1px solid var(--border-color, #2a2a3c);
    border-radius: var(--radius-sm, 6px);
    padding: 3px 8px;
    font-family: var(--font-family, 'Inter', sans-serif);
    font-size: var(--font-size-xs, 0.7rem);
    cursor: pointer;
    outline: none;
    min-width: 140px;
    max-width: 220px;
    transition: border-color 0.2s ease;
}

.ps-chart-overlay__preset-select:focus {
    border-color: var(--accent-blue, #4a6cf7);
}

.ps-chart-overlay__preset-select option {
    background: var(--bg-card, #1a1a28);
    color: var(--text-secondary, #94a3b8);
}

/* Data count */
.ps-chart-overlay__data-count {
    color: var(--text-muted, #64748b);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: var(--font-size-2xs, 0.65rem);
    white-space: nowrap;
    margin-left: auto;
    flex-shrink: 0;
}

/* ── Body (chart canvas area) ───────────────────────────────────────────── */

.ps-chart-overlay__body {
    padding: 0 var(--space-md, 12px) var(--space-md, 12px);
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.25s ease;
}

.ps-chart-overlay--expanded .ps-chart-overlay__body {
    opacity: 1;
}

.ps-chart-overlay--collapsed .ps-chart-overlay__body {
    max-height: 0;
    padding: 0;
    opacity: 0;
}

/* Canvas */
.ps-chart-overlay__canvas {
    width: 100% !important;
    display: block;
}

/* Empty state */
.ps-chart-overlay__empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    color: var(--text-muted, #64748b);
    font-family: var(--font-family, 'Inter', sans-serif);
    font-size: var(--font-size-sm, 0.78rem);
    font-style: italic;
}

/* Hide entire panel when collapsed — external button handles toggle */
.ps-chart-overlay--collapsed {
    border: none;
    background: none;
    margin-bottom: 0;
    min-height: 0;
    overflow: hidden;
}

.ps-chart-overlay--collapsed .ps-chart-overlay__header {
    display: none;
}

/* ── External Toggle Button (in section headers) ───────────────────────── */

.ps-chart-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: transparent;
    border: 1px solid var(--border-color, #2a2a3c);
    border-radius: var(--radius-sm, 6px);
    color: var(--text-muted, #64748b);
    cursor: pointer;
    padding: 5px 12px;
    font-family: var(--font-family, 'Inter', sans-serif);
    font-size: var(--font-size-xs, 0.75rem);
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.ps-chart-toggle-btn:hover {
    color: var(--accent-blue, #4a6cf7);
    border-color: var(--accent-blue, #4a6cf7);
    background: rgba(74, 108, 247, 0.06);
}

.ps-chart-toggle-btn.active {
    color: var(--accent-blue, #4a6cf7);
    border-color: var(--accent-blue, #4a6cf7);
    background: rgba(74, 108, 247, 0.10);
}

.ps-chart-toggle-btn i {
    width: 14px;
    height: 14px;
}