/** * Copyright (c) 2026 DNA Genics, S.L. All rights reserved.
 * 
 * Chromosome Browser Dark Theme Stylesheet
 * Professional DNA segment visualization with responsive tab navigation.
 * Used in Deep Ancestry reports (BCE, CE, Modern).
 */

/* ========================================
   CSS Variables - Dark Theme Palette
   ======================================== */
:root {
    --dar-chromo-obsidian: #0D0D0F;
    --dar-chromo-slate: #1A1C1E;
    --dar-chromo-stone: #2A2D31;
    --dar-chromo-earth: #3D3A36;
    --dar-chromo-sand: #A89F91;
    --dar-chromo-bone: #E8E4DC;
    --dar-chromo-ivory: #F5F3EF;
    --dar-chromo-amber: #C4956A;
    --dar-chromo-copper: #8B6D4F;
    --dar-chromo-teal: #237465;
    
    --dar-chromo-bg: var(--dar-chromo-slate);
    --dar-chromo-segment-bg: var(--dar-chromo-stone);
    --dar-chromo-accent: var(--dar-chromo-teal);
    --dar-chromo-text: var(--dar-chromo-bone);
    --dar-chromo-text-muted: var(--dar-chromo-sand);
    --dar-chromo-border: rgba(168, 159, 145, 0.15);
    --dar-chromo-border-light: rgba(168, 159, 145, 0.08);
    
    --dar-dna-height: 14px;
    --dar-dna-gap: 4px;
    --dar-dna-radius: 7px;
    --dar-dna-centromere-width: 3px;
    
    --dar-chromo-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --dar-chromo-transition-fast: 0.15s ease-out;
}

/* ========================================
   Main Container
   ======================================== */
.dar-chromo-container {
    background: var(--dar-chromo-slate);
    border-radius: 12px;
    padding: 1.75rem;
    border: 1px solid var(--dar-chromo-border);
}

/* ========================================
   Segmented Tab Navigation
   ======================================== */
.dar-chromo-tabs {
    display: inline-flex;
    background: var(--dar-chromo-obsidian);
    border-radius: 10px;
    padding: 4px;
    gap: 2px;
    border: 1px solid var(--dar-chromo-border);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
    margin: 0 auto 2rem;
    list-style: none;
    flex-wrap: nowrap;
    overflow-x: auto;
    max-width: 100%;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
}

.dar-chromo-tabs::-webkit-scrollbar {
    display: none;
}

.dar-chromo-tabs .nav-item {
    margin: 0;
    flex-shrink: 0;
}

.dar-chromo-tabs .nav-link,
.dar-chromo-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--dar-chromo-text-muted);
    background: transparent;
    border: none;
    border-radius: 7px;
    cursor: pointer;
    transition: all var(--dar-chromo-transition);
    text-decoration: none;
    white-space: nowrap;
}

.dar-chromo-tabs .nav-link i,
.dar-chromo-tab i {
    font-size: 0.875rem;
    opacity: 0.7;
    transition: opacity var(--dar-chromo-transition);
}

.dar-chromo-tabs .nav-link:hover,
.dar-chromo-tab:hover {
    color: var(--dar-chromo-ivory);
    background: rgba(168, 159, 145, 0.1);
}

.dar-chromo-tabs .nav-link:hover i,
.dar-chromo-tab:hover i {
    opacity: 1;
}

.dar-chromo-tabs .nav-link.active,
.dar-chromo-tab.active {
    color: var(--dar-chromo-obsidian);
    background: var(--dar-chromo-accent);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(35, 116, 101, 0.35);
}

.dar-chromo-tabs .nav-link.active i,
.dar-chromo-tab.active i {
    opacity: 1;
}

/* ========================================
   Section Headers
   ======================================== */
.dar-chromo-section-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.dar-chromo-section-header h3,
.dar-chromo-section-header h4 {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dar-chromo-ivory);
    margin: 0 0 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.dar-chromo-section-header h4 i {
    color: var(--dar-chromo-accent);
    font-size: 1.125rem;
}

.dar-chromo-section-header p,
.dar-chromo-section-header h6 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.9375rem;
    color: var(--dar-chromo-text-muted);
    margin: 0;
    font-weight: 400;
}

/* ========================================
   Population Filter (Legend)
   ======================================== */
.dar-population-filter {
    background: linear-gradient(180deg, var(--dar-chromo-stone) 0%, rgba(42, 45, 49, 0.8) 100%);
    border-radius: 10px;
    padding: 1.25rem;
    border: 1px solid var(--dar-chromo-border);
}

@media (min-width: 992px) {
    .dar-population-filter {
        position: sticky;
        top: 100px;
        max-height: calc(100vh - 140px);
        overflow-y: auto;
        scrollbar-width: thin;
        scrollbar-color: var(--dar-chromo-accent) var(--dar-chromo-obsidian);
    }
    
    .dar-population-filter::-webkit-scrollbar {
        width: 6px;
    }
    
    .dar-population-filter::-webkit-scrollbar-track {
        background: var(--dar-chromo-obsidian);
        border-radius: 3px;
    }
    
    .dar-population-filter::-webkit-scrollbar-thumb {
        background: var(--dar-chromo-accent);
        border-radius: 3px;
    }
}

.dar-population-filter h4 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dar-chromo-ivory);
    margin: 0 0 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--dar-chromo-border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dar-population-filter h4 i {
    color: var(--dar-chromo-accent);
}

.dar-population-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dar-population-item {
    display: flex;
    align-items: center;
    padding: 0.5rem 0.625rem;
    margin-bottom: 0.125rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--dar-chromo-transition-fast);
    color: var(--dar-chromo-text);
    font-size: 0.8125rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    border: 1px solid transparent;
}

.dar-population-item:hover {
    background: rgba(168, 159, 145, 0.08);
    border-color: var(--dar-chromo-border);
}

.dar-population-item.selected {
    background: rgba(35, 116, 101, 0.15);
    border-color: var(--dar-chromo-accent);
}

.dar-population-item .fa-square {
    margin-right: 0.625rem;
    font-size: 0.625rem;
    border-radius: 2px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.dar-population-item.hideItem {
    opacity: 0.25;
}

.dar-population-item.hideItem:hover {
    opacity: 0.5;
}

/* ========================================
   Chromosome Explorer Layout
   ======================================== */
.dar-chromo-explorer {
    display: grid;
    grid-template-columns: minmax(200px, 300px) 1fr;
    gap: 2rem;
}

@media (max-width: 991px) {
    .dar-chromo-explorer {
        grid-template-columns: 1fr;
    }
}

.dar-chromo-visualization {
    background: var(--dar-chromo-obsidian);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid var(--dar-chromo-border);
}

/* ========================================
   DNA Chromosome Segment Visualization
   ======================================== */
.dar-chromo-container .row.no-gutters {
    margin-bottom: var(--dar-dna-gap);
}

.dar-chromo-label {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(145deg, var(--dar-chromo-stone) 0%, var(--dar-chromo-obsidian) 100%);
    border: 1px solid var(--dar-chromo-border);
    border-radius: 50%;
    color: var(--dar-chromo-ivory);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.6875rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* DNA Segment wrapper */
.dar-chromo-container .progress,
.dar-report .dar-data-card .progress {
    background: var(--dar-chromo-stone);
    border-radius: var(--dar-dna-radius);
    height: var(--dar-dna-height);
    overflow: visible;
    position: relative;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.3),
        0 1px 0 rgba(255, 255, 255, 0.03);
}

/* 3D depth effect overlay */
.dar-chromo-container .progress::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(180deg, 
        rgba(255, 255, 255, 0.08) 0%, 
        transparent 40%, 
        rgba(0, 0, 0, 0.15) 100%);
    pointer-events: none;
    z-index: 10;
}

/* DNA Segment - individual bars */
.dar-chromo-container .progress-bar,
.dar-report .dar-data-card .progress-bar {
    border-radius: 0;
    position: relative;
    transition: all var(--dar-chromo-transition-fast);
}

/* 3D effect for colored segments */
.dar-chromo-container .progress-bar:not(.dar-chromo-empty)::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, 
        rgba(255, 255, 255, 0.2) 0%, 
        rgba(255, 255, 255, 0.05) 30%,
        transparent 50%, 
        rgba(0, 0, 0, 0.1) 100%);
    pointer-events: none;
}

/* Hover effect */
.dar-chromo-container .progress-bar:not(.dar-chromo-empty):hover {
    filter: brightness(1.15);
    z-index: 5;
}

/* Rounded ends */
.dar-chromo-container .progress .progress-bar:first-child {
    border-radius: var(--dar-dna-radius) 0 0 var(--dar-dna-radius);
}

.dar-chromo-container .progress .progress-bar:last-child {
    border-radius: 0 var(--dar-dna-radius) var(--dar-dna-radius) 0;
}

.dar-chromo-container .progress .progress-bar:only-child {
    border-radius: var(--dar-dna-radius);
}

/* Empty segment */
.dar-chromo-empty {
    background: var(--dar-chromo-stone) !important;
}

/* ========================================
   Centromere Gap Styling
   ======================================== */
.dar-chromo-container .d-flex {
    gap: var(--dar-dna-centromere-width);
}

/* Short arm (p-arm) */
.dar-chromo-container .d-flex > .progress:first-child {
    border-radius: var(--dar-dna-radius) 3px 3px var(--dar-dna-radius);
}

.dar-chromo-container .d-flex > .progress:first-child .progress-bar:last-child {
    border-radius: 0 2px 2px 0;
}

/* Long arm (q-arm) */
.dar-chromo-container .d-flex > .progress:last-child {
    border-radius: 3px var(--dar-dna-radius) var(--dar-dna-radius) 3px;
}

.dar-chromo-container .d-flex > .progress:last-child .progress-bar:first-child {
    border-radius: 2px 0 0 2px;
}

/* ========================================
   Two-Copy Chromosome Display
   ======================================== */
.dar-chromo-container .row.no-gutters .col-11 > .progress + .row + .progress,
.dar-chromo-container .row.no-gutters .col-11 > .d-flex + .row + .d-flex {
    margin-top: 3px;
}

.dar-chromo-container .row.no-gutters .col-11 > .row.mt-1 {
    height: 2px;
}

/* ========================================
   Chromosome Number Pills
   ======================================== */
.dar-chromo-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.375rem;
    padding: 0;
    margin: 0 0 2rem;
    list-style: none;
}

.dar-chromo-pills .nav-item {
    margin: 0;
}

.dar-chromo-pills .nav-link,
.dar-chromo-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0.5rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--dar-chromo-text-muted);
    background: linear-gradient(145deg, var(--dar-chromo-stone) 0%, rgba(42, 45, 49, 0.8) 100%);
    border: 1px solid var(--dar-chromo-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--dar-chromo-transition-fast);
    text-decoration: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.dar-chromo-pills .nav-link:hover,
.dar-chromo-pill:hover {
    color: var(--dar-chromo-ivory);
    background: var(--dar-chromo-earth);
    border-color: var(--dar-chromo-accent);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.dar-chromo-pills .nav-link.active,
.dar-chromo-pill.active {
    color: var(--dar-chromo-obsidian);
    background: var(--dar-chromo-accent);
    border-color: var(--dar-chromo-accent);
    box-shadow: 0 2px 8px rgba(35, 116, 101, 0.4);
    transform: translateY(0);
}

/* ========================================
   Data Tables
   ======================================== */
.dar-data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--dar-chromo-slate);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--dar-chromo-border);
}

.dar-data-table thead {
    background: linear-gradient(135deg, var(--dar-chromo-accent) 0%, #1a5c50 100%);
}

.dar-data-table thead th {
    padding: 1rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--dar-chromo-ivory);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--dar-chromo-border);
    text-align: left;
}

.dar-data-table tbody tr {
    transition: background var(--dar-chromo-transition-fast);
    border-bottom: 1px solid var(--dar-chromo-border-light);
}

.dar-data-table tbody tr:hover {
    background: rgba(168, 159, 145, 0.06);
}

.dar-data-table tbody tr:nth-child(even) {
    background: rgba(0, 0, 0, 0.12);
}

.dar-data-table tbody tr:nth-child(even):hover {
    background: rgba(168, 159, 145, 0.08);
}

.dar-data-table tbody td {
    padding: 0.875rem 1rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.875rem;
    color: var(--dar-chromo-text);
    border-bottom: 1px solid var(--dar-chromo-border-light);
    vertical-align: middle;
}

.dar-data-table tbody td:first-child {
    font-weight: 500;
}

/* Ensure population column is visible on large screens */
@media (min-width: 992px) {
    .dar-data-table tbody td.d-none.d-lg-table-cell {
        display: table-cell !important;
    }
    
    .dar-data-table thead th.d-none.d-lg-table-cell {
        display: table-cell !important;
    }
}

.dar-table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 10px;
}

/* ========================================
   Progress Bars (Vertical)
   ======================================== */
.dar-progress-vertical {
    display: inline-flex;
    flex-direction: column-reverse;
    width: 8px;
    height: 60px;
    background: var(--dar-chromo-stone);
    border-radius: 4px;
    overflow: hidden;
    margin-left: 0.75rem;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.dar-progress-vertical .progress-bar {
    width: 100%;
    border-radius: 4px;
    transition: height var(--dar-chromo-transition);
}

.dar-progress-horizontal {
    height: 8px;
    background: var(--dar-chromo-stone);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.dar-progress-horizontal .progress-bar {
    height: 100%;
    border-radius: 4px;
    transition: width var(--dar-chromo-transition);
}

/* ========================================
   Chord Chart - Enhanced
   ======================================== */
.dar-chord-container {
    background: var(--dar-chromo-obsidian);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid var(--dar-chromo-border);
}

.dar-chord-wrapper {
    position: relative;
}

/* Info Row - Stats and Legend */
.dar-chord-info-row {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* Statistics Panel */
.dar-chord-stats {
    background: linear-gradient(145deg, var(--dar-chromo-stone) 0%, rgba(42, 45, 49, 0.8) 100%);
    border-radius: 10px;
    padding: 1rem;
    border: 1px solid var(--dar-chromo-border);
    min-width: 200px;
}

.dar-chord-stats-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--dar-chromo-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--dar-chromo-border);
}

.dar-chord-stats-header i {
    color: var(--dar-chromo-accent);
}

.dar-chord-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.dar-chord-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
}

.dar-chord-stat-value {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dar-chromo-ivory);
    line-height: 1.2;
}

.dar-chord-stat-label {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.625rem;
    color: var(--dar-chromo-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-top: 0.25rem;
}

.dar-chord-stat-highlight {
    grid-column: span 2;
    background: rgba(35, 116, 101, 0.15);
    border: 1px solid rgba(35, 116, 101, 0.3);
}

.dar-chord-stat-highlight .dar-chord-stat-value {
    color: var(--dar-chromo-accent);
}

/* Legend Panel */
.dar-chord-legend {
    background: linear-gradient(145deg, var(--dar-chromo-stone) 0%, rgba(42, 45, 49, 0.8) 100%);
    border-radius: 10px;
    border: 1px solid var(--dar-chromo-border);
    overflow: hidden;
}

.dar-chord-legend-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--dar-chromo-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem;
    cursor: pointer;
    transition: background var(--dar-chromo-transition-fast);
}

.dar-chord-legend-header:hover {
    background: rgba(168, 159, 145, 0.05);
}

.dar-chord-legend-header i:first-child {
    color: var(--dar-chromo-accent);
}

.dar-chord-legend-toggle {
    margin-left: auto;
    transition: transform var(--dar-chromo-transition);
}

.dar-chord-legend-header[aria-expanded="false"] .dar-chord-legend-toggle {
    transform: rotate(-90deg);
}

.dar-chord-legend-list {
    max-height: 200px;
    overflow-y: auto;
    padding: 0 0.75rem 0.75rem;
    scrollbar-width: thin;
    scrollbar-color: var(--dar-chromo-accent) var(--dar-chromo-obsidian);
}

.dar-chord-legend-list::-webkit-scrollbar {
    width: 6px;
}

.dar-chord-legend-list::-webkit-scrollbar-track {
    background: var(--dar-chromo-obsidian);
    border-radius: 3px;
}

.dar-chord-legend-list::-webkit-scrollbar-thumb {
    background: var(--dar-chromo-accent);
    border-radius: 3px;
}

.dar-chord-legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.5rem;
    margin-bottom: 0.125rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--dar-chromo-transition-fast);
    border: 1px solid transparent;
}

.dar-chord-legend-item:hover {
    background: rgba(168, 159, 145, 0.08);
}

.dar-chord-legend-item.selected {
    background: rgba(35, 116, 101, 0.2);
    border-color: var(--dar-chromo-accent);
}

.dar-chord-legend-color {
    width: 10px;
    height: 10px;
    border-radius: 2px;
    flex-shrink: 0;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.dar-chord-legend-name {
    flex: 1;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.75rem;
    color: var(--dar-chromo-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dar-chord-legend-count {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--dar-chromo-text-muted);
    background: rgba(0, 0, 0, 0.2);
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
}

.dar-chord-legend-more {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.6875rem;
    color: var(--dar-chromo-text-muted);
    text-align: center;
    padding: 0.5rem;
    font-style: italic;
}

/* Help Button */
.dar-chord-help {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 10;
}

.dar-chord-help-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--dar-chromo-stone);
    border: 1px solid var(--dar-chromo-border);
    border-radius: 50%;
    color: var(--dar-chromo-text-muted);
    cursor: pointer;
    transition: all var(--dar-chromo-transition-fast);
}

.dar-chord-help-btn:hover,
.dar-chord-help-btn:focus {
    background: var(--dar-chromo-accent);
    color: var(--dar-chromo-obsidian);
    border-color: var(--dar-chromo-accent);
    outline: none;
}

.dar-chord-help-btn i {
    font-size: 0.875rem;
}

/* Chart Container */
.dar-chord-chart-container {
    position: relative;
    background: var(--dar-chromo-obsidian);
    border-radius: 10px;
    border: 1px solid var(--dar-chromo-border);
    overflow: hidden;
}

.dar-chord-chart {
    width: 100%;
    height: 650px;
    min-height: 450px;
}

/* Reset Button */
.dar-chord-reset-btn {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--dar-chromo-accent);
    border: none;
    border-radius: 20px;
    color: var(--dar-chromo-obsidian);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(35, 116, 101, 0.4);
    transition: all var(--dar-chromo-transition-fast);
    z-index: 10;
}

.dar-chord-reset-btn:hover {
    transform: translateX(-50%) translateY(-2px);
    box-shadow: 0 6px 16px rgba(35, 116, 101, 0.5);
}

/* Popover Styling */
.popover {
    background: var(--dar-chromo-stone);
    border: 1px solid var(--dar-chromo-border);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    max-width: 300px;
}

.popover-header {
    background: var(--dar-chromo-obsidian);
    border-bottom: 1px solid var(--dar-chromo-border);
    color: var(--dar-chromo-ivory);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.75rem 1rem;
    border-radius: 7px 7px 0 0;
}

.popover-body {
    color: var(--dar-chromo-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.8125rem;
    padding: 1rem;
    line-height: 1.5;
}

.popover-body ul {
    padding-left: 1.25rem;
    margin-top: 0.5rem;
}

.popover-body li {
    margin-bottom: 0.25rem;
}

.bs-popover-left > .arrow::after,
.bs-popover-auto[x-placement^="left"] > .arrow::after {
    border-left-color: var(--dar-chromo-stone);
}

.bs-popover-right > .arrow::after,
.bs-popover-auto[x-placement^="right"] > .arrow::after {
    border-right-color: var(--dar-chromo-stone);
}

.bs-popover-top > .arrow::after,
.bs-popover-auto[x-placement^="top"] > .arrow::after {
    border-top-color: var(--dar-chromo-stone);
}

.bs-popover-bottom > .arrow::after,
.bs-popover-auto[x-placement^="bottom"] > .arrow::after {
    border-bottom-color: var(--dar-chromo-stone);
}

/* Mobile Responsive */
@media (max-width: 991px) {
    .dar-chord-info-row {
        grid-template-columns: 1fr;
    }
    
    .dar-chord-stats {
        min-width: unset;
    }
    
    .dar-chord-stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .dar-chord-stat-highlight {
        grid-column: span 1;
    }
    
    .dar-chord-legend-list {
        max-height: 150px;
    }
}

@media (max-width: 767px) {
    .dar-chord-info-row {
        gap: 0.75rem;
        margin-bottom: 1rem;
    }
    
    .dar-chord-stats {
        padding: 0.75rem;
    }
    
    .dar-chord-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .dar-chord-stat-value {
        font-size: 1.25rem;
    }
    
    .dar-chord-stat-highlight {
        grid-column: span 2;
    }
    
    .dar-chord-legend-header {
        padding: 0.75rem;
    }
    
    .dar-chord-legend-list {
        max-height: 120px;
        padding: 0 0.5rem 0.5rem;
    }
    
    .dar-chord-chart {
        height: 400px;
        min-height: 320px;
    }
    
    .dar-chord-help {
        top: -40px;
        right: 0;
    }
    
    .dar-chord-reset-btn {
        bottom: 0.75rem;
        padding: 0.375rem 0.75rem;
        font-size: 0.6875rem;
    }
}

@media (max-width: 480px) {
    .dar-chord-chart {
        height: 350px;
        min-height: 280px;
    }
    
    .dar-chord-stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ========================================
   Tooltips - Chromosome Segment Tooltips
   ======================================== */
.dar-chromo-container .tooltip,
.dar-report .tooltip {
    z-index: 1070;
    opacity: 0;
    transition: opacity var(--dar-chromo-transition-fast);
}

.dar-chromo-container .tooltip.show,
.dar-report .tooltip.show {
    opacity: 1;
}

.dar-chromo-container .tooltip-inner,
.dar-report .tooltip-inner {
    background: linear-gradient(145deg, var(--dar-chromo-stone) 0%, var(--dar-chromo-earth) 100%);
    color: var(--dar-chromo-ivory);
    border: 1px solid var(--dar-chromo-accent);
    padding: 0.875rem 1rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.8125rem;
    line-height: 1.6;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 
                0 0 0 1px rgba(35, 116, 101, 0.2) inset,
                0 2px 8px rgba(35, 116, 101, 0.15);
    max-width: 320px;
    text-align: left;
    word-wrap: break-word;
    backdrop-filter: blur(8px);
}

/* Tooltip content formatting for HTML content */
.dar-chromo-container .tooltip-inner br,
.dar-report .tooltip-inner br {
    display: block;
    margin: 0.25rem 0;
    content: "";
}

.dar-chromo-container .tooltip-inner strong,
.dar-report .tooltip-inner strong {
    color: var(--dar-chromo-accent);
    font-weight: 600;
}

/* Tooltip arrows - All directions */
.dar-chromo-container .tooltip.bs-tooltip-top .arrow::before,
.dar-report .tooltip.bs-tooltip-top .arrow::before {
    border-top-color: var(--dar-chromo-stone);
}

.dar-chromo-container .tooltip.bs-tooltip-bottom .arrow::before,
.dar-report .tooltip.bs-tooltip-bottom .arrow::before {
    border-bottom-color: var(--dar-chromo-stone);
}

.dar-chromo-container .tooltip.bs-tooltip-left .arrow::before,
.dar-report .tooltip.bs-tooltip-left .arrow::before {
    border-left-color: var(--dar-chromo-stone);
}

.dar-chromo-container .tooltip.bs-tooltip-right .arrow::before,
.dar-report .tooltip.bs-tooltip-right .arrow::before {
    border-right-color: var(--dar-chromo-stone);
}

/* Mobile tooltip adjustments */
@media (max-width: 767px) {
    .dar-chromo-container .tooltip-inner,
    .dar-report .tooltip-inner {
        max-width: 280px;
        padding: 0.75rem 0.875rem;
        font-size: 0.75rem;
    }
}

/* ========================================
   Empty State
   ======================================== */
.dar-chromo-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    text-align: center;
    color: var(--dar-chromo-text-muted);
}

.dar-chromo-empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.dar-chromo-empty-state h5 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dar-chromo-ivory);
    margin-bottom: 0.5rem;
}

.dar-chromo-empty-state p {
    font-size: 0.9375rem;
    margin: 0;
}

/* ========================================
   Bootstrap Overrides
   ======================================== */
.dar-chromo-container .bg-light-darker,
.dar-report .bg-light-darker {
    background: var(--dar-chromo-stone) !important;
}

.dar-chromo-container .text-dark,
.dar-report .dar-data-card .text-dark {
    color: var(--dar-chromo-text) !important;
}

.dar-chromo-container .font-weight-bold,
.dar-report .dar-data-card .font-weight-bold {
    color: var(--dar-chromo-ivory);
}

.dar-chromo-container .thead-dark th,
.dar-chromo-container .table-dark th,
.dar-report .dar-data-card .thead-dark th,
.dar-report .dar-data-card .table-dark th {
    background: linear-gradient(135deg, var(--dar-chromo-accent) 0%, #1a5c50 100%);
    border-color: var(--dar-chromo-border);
    color: var(--dar-chromo-ivory);
}

.dar-chromo-container .table-striped tbody tr:nth-of-type(odd),
.dar-report .dar-data-card .table-striped tbody tr:nth-of-type(odd) {
    background: transparent;
}

.dar-chromo-container .table-striped tbody tr:nth-of-type(even),
.dar-report .dar-data-card .table-striped tbody tr:nth-of-type(even) {
    background: rgba(0, 0, 0, 0.12);
}

.dar-chromo-container .table tbody td,
.dar-report .dar-data-card .table tbody td {
    color: var(--dar-chromo-text);
    border-color: var(--dar-chromo-border-light);
}

.dar-chromo-container .table tbody tr:hover,
.dar-report .dar-data-card .table tbody tr:hover {
    background: rgba(168, 159, 145, 0.08);
}

.dar-chromo-container .bg-content,
.dar-report .dar-data-card .bg-content {
    background: var(--dar-chromo-stone) !important;
    border: 1px solid var(--dar-chromo-border);
    color: var(--dar-chromo-ivory) !important;
}

.dar-chromo-container .hideItem,
.dar-report .hideItem {
    background-color: var(--dar-chromo-stone) !important;
    opacity: 0.25;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 991px) {
    .dar-chromo-container {
        padding: 1.25rem;
    }
    
    .dar-chromo-tabs {
        width: 100%;
        justify-content: flex-start;
        padding: 4px;
        margin: 0 0 1.5rem;
        border-radius: 10px;
    }
    
    .dar-chromo-tabs .nav-link,
    .dar-chromo-tab {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }
    
    .dar-population-filter {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }
    
    :root {
        --dar-dna-height: 12px;
        --dar-dna-radius: 6px;
    }
    
    .dar-chromo-label {
        width: 28px;
        height: 28px;
        font-size: 0.625rem;
    }
}

@media (max-width: 767px) {
    .dar-chromo-container {
        padding: 1rem;
        border-radius: 8px;
    }
    
    .dar-chromo-tabs {
        gap: 2px;
    }
    
    .dar-chromo-tabs .nav-link,
    .dar-chromo-tab {
        padding: 0.5rem 0.875rem;
        font-size: 0.6875rem;
        gap: 0.375rem;
    }
    
    .dar-chromo-tabs .nav-link i,
    .dar-chromo-tab i {
        font-size: 0.75rem;
    }
    
    :root {
        --dar-dna-height: 10px;
        --dar-dna-radius: 5px;
        --dar-dna-gap: 3px;
    }
    
    .dar-chromo-label {
        width: 24px;
        height: 24px;
        font-size: 0.5625rem;
    }
    
    .dar-chromo-pills .nav-link,
    .dar-chromo-pill {
        min-width: 36px;
        height: 36px;
        font-size: 0.75rem;
        border-radius: 6px;
    }
    
    .dar-data-table thead th {
        padding: 0.75rem 0.5rem;
        font-size: 0.6875rem;
    }
    
    .dar-data-table tbody td {
        padding: 0.625rem 0.5rem;
        font-size: 0.8125rem;
    }
    
    .dar-chromo-section-header h3,
    .dar-chromo-section-header h4 {
        font-size: 1.25rem;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .dar-chromo-container {
        background: #fff;
        border-color: #ddd;
    }
    
    .dar-chromo-tabs .nav-link,
    .dar-chromo-tab {
        color: #333;
        background: #f5f5f5;
        border: 1px solid #ddd;
    }
    
    .dar-chromo-tabs .nav-link.active,
    .dar-chromo-tab.active {
        color: #fff;
        background: #237465;
    }
    
    .dar-population-filter {
        background: #f9f9f9;
        border-color: #ddd;
    }
    
    .dar-population-filter h4,
    .dar-population-item {
        color: #333;
    }
    
    .dar-chromo-section-header h3,
    .dar-chromo-section-header h4 {
        color: #333;
    }
    
    .dar-chromo-section-header p {
        color: #666;
    }
    
    .dar-data-table thead {
        background: #237465;
    }
    
    .dar-data-table tbody td {
        color: #333;
        border-color: #ddd;
    }
    
    .dar-chromo-label {
        background: #f0f0f0;
        color: #333;
        border-color: #ddd;
    }
    
    .dar-chromo-container .progress,
    .dar-chromo-empty {
        background: #e5e5e5 !important;
    }
}

/* ========================================
   Report-Specific Accent Colors
   ======================================== */

/* BCE Report - Amber */
.dar-report-bce .dar-chromo-tabs .nav-link.active,
.dar-report-bce .dar-chromo-tab.active {
    background: var(--dar-bce-accent, #C4956A);
    box-shadow: 0 2px 8px rgba(196, 149, 106, 0.35);
}

.dar-report-bce .dar-chromo-pills .nav-link.active,
.dar-report-bce .dar-chromo-pill.active {
    background: var(--dar-bce-accent, #C4956A);
    border-color: var(--dar-bce-accent, #C4956A);
    box-shadow: 0 2px 8px rgba(196, 149, 106, 0.4);
}

.dar-report-bce .dar-data-table thead {
    background: linear-gradient(135deg, var(--dar-bce-accent, #C4956A) 0%, var(--dar-bce-accent-dark, #8B6D4F) 100%);
}

.dar-report-bce .dar-population-filter h4 i {
    color: var(--dar-bce-accent, #C4956A);
}

.dar-report-bce .dar-chromo-section-header h4 i {
    color: var(--dar-bce-accent, #C4956A);
}

/* CE Report - Bronze */
.dar-report-ce .dar-chromo-tabs .nav-link.active,
.dar-report-ce .dar-chromo-tab.active {
    background: var(--dar-ce-accent, #9B7B5C);
    box-shadow: 0 2px 8px rgba(155, 123, 92, 0.35);
}

.dar-report-ce .dar-chromo-pills .nav-link.active,
.dar-report-ce .dar-chromo-pill.active {
    background: var(--dar-ce-accent, #9B7B5C);
    border-color: var(--dar-ce-accent, #9B7B5C);
    box-shadow: 0 2px 8px rgba(155, 123, 92, 0.4);
}

.dar-report-ce .dar-data-table thead {
    background: linear-gradient(135deg, var(--dar-ce-accent, #9B7B5C) 0%, var(--dar-ce-accent-dark, #6E5742) 100%);
}

.dar-report-ce .dar-population-filter h4 i {
    color: var(--dar-ce-accent, #9B7B5C);
}

.dar-report-ce .dar-chromo-section-header h4 i {
    color: var(--dar-ce-accent, #9B7B5C);
}

/* Modern Report - Blue-Grey */
.dar-report-modern .dar-chromo-tabs .nav-link.active,
.dar-report-modern .dar-chromo-tab.active {
    background: var(--dar-modern-accent, #6B8A9A);
    box-shadow: 0 2px 8px rgba(107, 138, 154, 0.35);
}

.dar-report-modern .dar-chromo-pills .nav-link.active,
.dar-report-modern .dar-chromo-pill.active {
    background: var(--dar-modern-accent, #6B8A9A);
    border-color: var(--dar-modern-accent, #6B8A9A);
    box-shadow: 0 2px 8px rgba(107, 138, 154, 0.4);
}

.dar-report-modern .dar-data-table thead {
    background: linear-gradient(135deg, var(--dar-modern-accent, #6B8A9A) 0%, var(--dar-modern-accent-dark, #4A6573) 100%);
}

.dar-report-modern .dar-population-filter h4 i {
    color: var(--dar-modern-accent, #6B8A9A);
}

.dar-report-modern .dar-chromo-section-header h4 i {
    color: var(--dar-modern-accent, #6B8A9A);
}

/* ========================================
   Sample Information Table - Action Buttons
   ======================================== */
.dar-sample-link {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    transition: all var(--dar-chromo-transition-fast);
    color: var(--dar-chromo-ivory);
}

.dar-sample-link:hover {
    color: var(--dar-chromo-accent);
}

.dar-sample-link i {
    color: var(--dar-chromo-accent);
    opacity: 0.7;
    transition: opacity var(--dar-chromo-transition-fast);
}

.dar-sample-link:hover i {
    opacity: 1;
}

.dar-sample-actions {
    white-space: nowrap;
}

.dar-btn-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.375rem 0.625rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--dar-chromo-text);
    background: var(--dar-chromo-stone);
    border: 1px solid var(--dar-chromo-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--dar-chromo-transition-fast);
    text-decoration: none;
}

.dar-btn-action:hover,
.dar-btn-action:focus {
    color: var(--dar-chromo-ivory);
    border-color: var(--dar-chromo-accent);
    background: rgba(35, 116, 101, 0.15);
    text-decoration: none;
}

.dar-btn-info-drawer:hover {
    color: var(--dar-chromo-obsidian);
    background: var(--dar-chromo-accent);
    border-color: var(--dar-chromo-accent);
}

.dar-btn-profile {
    color: var(--dar-chromo-text-muted);
}

.dar-btn-profile:hover {
    color: var(--dar-chromo-ivory);
}

.dar-table-col-actions {
    width: 140px;
    min-width: 100px;
}

@media (max-width: 767px) {
    .dar-table-col-actions {
        width: auto;
        min-width: 80px;
    }
    
    .dar-btn-action {
        padding: 0.375rem 0.5rem;
    }
}

/* ========================================
   Sample Detail Drawer - Dark Theme
   ======================================== */
.dar-sample-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1050;
    pointer-events: none;
}

.dar-sample-drawer.open {
    pointer-events: auto;
}

/* Backdrop */
.dar-sample-drawer-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    z-index: 1049;
    pointer-events: none;
}

.dar-sample-drawer.open .dar-sample-drawer-backdrop {
    opacity: 1;
    pointer-events: auto;
}

/* Drawer Panel */
.dar-sample-drawer-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 50vw;
    max-width: 600px;
    min-width: 320px;
    height: 100vh;
    background: var(--dar-chromo-slate);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.4);
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.dar-sample-drawer.open .dar-sample-drawer-panel {
    transform: translateX(0);
}

/* Drawer Header */
.dar-sample-drawer-header {
    background: linear-gradient(135deg, var(--dar-chromo-accent) 0%, #1a5c50 100%);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.dar-sample-drawer-title {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-weight: 600;
    font-size: 1.375rem;
    color: var(--dar-chromo-ivory);
    margin: 0;
    flex-grow: 1;
    padding-right: 1rem;
    display: flex;
    align-items: center;
}

.dar-sample-drawer-title i {
    color: var(--dar-chromo-ivory);
    opacity: 0.8;
}

.dar-sample-drawer-close {
    background: rgba(0, 0, 0, 0.2);
    border: none;
    font-size: 1.25rem;
    color: var(--dar-chromo-ivory);
    cursor: pointer;
    padding: 0.5rem;
    line-height: 1;
    transition: all var(--dar-chromo-transition-fast);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.dar-sample-drawer-close:hover {
    background: rgba(0, 0, 0, 0.3);
    transform: scale(1.05);
}

.dar-sample-drawer-close:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

/* Drawer Body */
.dar-sample-drawer-body {
    flex-grow: 1;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: var(--dar-chromo-accent) var(--dar-chromo-obsidian);
}

/* Drawer Portrait - Rounded Design */
.dar-sample-drawer-portrait {
    text-align: center;
    margin: 1.5rem 0;
    padding: 0 1rem;
}

.dar-sample-drawer-portrait img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--dar-chromo-accent);
}

/* Sample ID and Location Header */
.dar-sample-drawer-info {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 0 1rem;
}

.dar-sample-drawer-info h3 {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 1.5rem;
    color: var(--dar-chromo-ivory);
    margin: 0 0 0.5rem;
    font-weight: 600;
}

.dar-sample-drawer-info p {
    color: var(--dar-chromo-text-muted);
    margin: 0;
    font-size: 0.9375rem;
}

.dar-sample-drawer-info i {
    color: var(--dar-chromo-accent);
    margin-right: 6px;
}

/* Era Badge and Date Range */
.dar-sample-drawer-era {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 0 1rem;
}

.dar-sample-drawer-era-badge {
    display: inline-block;
    background: var(--dar-chromo-accent);
    color: var(--dar-chromo-obsidian);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dar-sample-drawer-dates {
    display: block;
    margin-top: 8px;
    font-size: 0.875rem;
    color: var(--dar-chromo-text-muted);
}

.dar-sample-drawer-body::-webkit-scrollbar {
    width: 6px;
}

.dar-sample-drawer-body::-webkit-scrollbar-track {
    background: var(--dar-chromo-obsidian);
}

.dar-sample-drawer-body::-webkit-scrollbar-thumb {
    background: var(--dar-chromo-accent);
    border-radius: 3px;
}

/* Loading State */
.dar-sample-drawer-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: var(--dar-chromo-text-muted);
}

.dar-sample-drawer-loading .spinner-border {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--dar-chromo-accent);
    margin-bottom: 1rem;
}

.dar-sample-drawer-loading p {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.9375rem;
    margin: 0;
}

/* Drawer Sections */
.dar-sample-drawer-section {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--dar-chromo-border);
}

.dar-sample-drawer-section:last-child {
    border-bottom: none;
}

.dar-sample-drawer-section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--dar-chromo-accent);
    margin: 0 0 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dar-sample-drawer-section-title i {
    font-size: 0.875rem;
}

/* Metadata Grid */
.dar-sample-drawer-metadata {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.dar-sample-drawer-metadata-item {
    background: var(--dar-chromo-stone);
    padding: 0.875rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--dar-chromo-border);
}

.dar-sample-drawer-metadata-full {
    grid-column: span 2;
}

.dar-sample-drawer-metadata-label {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--dar-chromo-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.dar-sample-drawer-metadata-value {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--dar-chromo-ivory);
    word-break: break-word;
}

/* Drawer Actions */
.dar-sample-drawer-actions {
    display: flex;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    background: var(--dar-chromo-obsidian);
    border-top: 1px solid var(--dar-chromo-border);
    flex-shrink: 0;
}

.dar-btn-drawer-primary {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.25rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dar-chromo-obsidian);
    background: var(--dar-chromo-accent);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--dar-chromo-transition-fast);
    text-decoration: none;
}

.dar-btn-drawer-primary:hover,
.dar-btn-drawer-primary:focus {
    background: #2a8a78;
    color: var(--dar-chromo-obsidian);
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(35, 116, 101, 0.4);
}

.dar-btn-drawer-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.25rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dar-chromo-text);
    background: var(--dar-chromo-stone);
    border: 1px solid var(--dar-chromo-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--dar-chromo-transition-fast);
    text-decoration: none;
}

.dar-btn-drawer-secondary:hover,
.dar-btn-drawer-secondary:focus {
    color: var(--dar-chromo-ivory);
    background: var(--dar-chromo-earth);
    border-color: var(--dar-chromo-accent);
    text-decoration: none;
}

/* Mobile Styles - Slides from bottom */
@media (max-width: 768px) {
    .dar-sample-drawer-panel {
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-width: none;
        min-width: unset;
        height: 85vh;
        max-height: 85vh;
        transform: translateY(100%);
        border-radius: 20px 20px 0 0;
        box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.4);
    }
    
    .dar-sample-drawer.open .dar-sample-drawer-panel {
        transform: translateY(0);
    }
    
    .dar-sample-drawer-header {
        border-radius: 20px 20px 0 0;
        padding: 1rem 1.25rem;
        position: relative;
    }
    
    /* Drag Handle */
    .dar-sample-drawer-header::before {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 4px;
        background-color: rgba(255, 255, 255, 0.3);
        border-radius: 2px;
    }
    
    .dar-sample-drawer-title {
        font-size: 1.125rem;
        margin-top: 8px;
    }
    
    .dar-sample-drawer-portrait { margin: 1rem 0; }
    .dar-sample-drawer-portrait img { width: 160px; height: 160px; }
    .dar-sample-drawer-info { margin-bottom: 1rem; }
    .dar-sample-drawer-info h3 { font-size: 1.25rem; }
    .dar-sample-drawer-era { margin-bottom: 1rem; }
    
    .dar-sample-drawer-section {
        padding: 1rem 1.25rem;
    }
    
    .dar-sample-drawer-metadata {
        grid-template-columns: 1fr;
    }
    
    .dar-sample-drawer-metadata-full {
        grid-column: span 1;
    }
    
    .dar-sample-drawer-actions {
        padding: 1rem 1.25rem;
        padding-bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
        flex-direction: column;
    }
    
    .dar-btn-drawer-primary,
    .dar-btn-drawer-secondary {
        width: 100%;
    }
}

/* Prevent body scroll when drawer is open */
body.dar-drawer-open {
    overflow: hidden;
}

/* ========================================
   Print Styles - Drawer
   ======================================== */
@media print {
    .dar-sample-drawer {
        display: none !important;
    }
    
    .dar-btn-action,
    .dar-sample-actions {
        display: none !important;
    }
}