/**
 * Stats Page Styles - Dark Theme
 * Refactored for permanent dark mode with 8px grid system
 * Part of: UI/Design System Backlog - Task UI-005
 */

/* ==========================================================================
   Sidebar Navigation Styles - Dark theme
   ========================================================================== */

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;  /* 12px */
    width: 100%;
    padding: 0.625rem 1rem;  /* 10px 16px */
    border-radius: 0.5rem;  /* 8px */
    font-size: 0.875rem;  /* 14px */
    font-weight: 500;
    color: #94a3b8;  /* Slate 400 */
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.sidebar-nav-item:hover {
    background: rgba(51, 65, 85, 0.5);  /* Slate 700/50 */
    color: #f8fafc;  /* Slate 50 */
}

.sidebar-nav-item.active {
    background: rgba(99, 102, 241, 0.15);  /* Indigo 500/15 - luminous */
    color: #818cf8;  /* Indigo 400 */
    font-weight: 600;
}

.sidebar-nav-icon {
    width: 1.25rem;  /* 20px */
    height: 1.25rem;  /* 20px */
    flex-shrink: 0;
}

.sidebar-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 1rem 0.75rem;  /* 16px 12px */
}

/* ==========================================================================
   App Switcher Styles
   ========================================================================== */

.sidebar-app-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;  /* 12px */
    width: 100%;
    padding: 0.625rem 0.75rem;  /* 10px 12px */
    border-radius: 0.5rem;  /* 8px */
    background: transparent;
    border: none;
    cursor: pointer;
    color: #cbd5e1;  /* Slate 300 */
    transition: all 0.2s;
}

.sidebar-app-option:hover {
    background: rgba(51, 65, 85, 0.5);  /* Slate 700/50 */
}

.sidebar-app-option.active {
    background: rgba(99, 102, 241, 0.15);  /* Indigo 500/15 */
}

.sidebar-app-option-icon {
    width: 2rem;  /* 32px */
    height: 2rem;  /* 32px */
    border-radius: 0.5rem;  /* 8px */
    background: linear-gradient(135deg, #6366F1, #8B5CF6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8125rem;  /* 13px */
    color: white;
}

.sidebar-app-option-name {
    flex: 1;
    text-align: left;
    font-weight: 500;
}

.sidebar-app-option-check {
    width: 1.125rem;  /* 18px */
    height: 1.125rem;  /* 18px */
    color: #34d399;  /* Emerald 400 */
    display: none;
}

.sidebar-app-option.active .sidebar-app-option-check {
    display: block;
}

/* ==========================================================================
   Tab & UI Components
   ========================================================================== */

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.pill-tab.active {
    background: #1e293b;  /* Slate 800 */
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #818cf8;  /* Indigo 400 */
}

.event-status-popover.active {
    display: block !important;
}

.collapsible-section.collapsed .collapsible-content {
    display: none;
}

.collapsible-section.collapsed .collapsible-toggle {
    transform: rotate(-90deg);
}

/* ==========================================================================
   Globe Section
   ========================================================================== */

#globeSection {
    background: linear-gradient(180deg, #0a0e27 0%, #1a1f3a 100%);
}

/* ==========================================================================
   Skeleton Loading Animations - Dark theme
   ========================================================================== */

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.skeleton {
    background: linear-gradient(90deg, #334155 25%, #475569 50%, #334155 75%);  /* Slate 700/600 gradient */
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
}

.skeleton-line--lg {
    height: 24px;
    width: 60%;
    margin-bottom: 12px;  /* 8px grid */
}

.skeleton-line--sm {
    height: 16px;
    width: 40%;
    margin-bottom: 8px;  /* 8px grid */
}

.skeleton-chart {
    height: 200px;
    width: 100%;
}

.skeleton-stat {
    height: 80px;
    width: 100%;
}

.skeleton-card {
    padding: 24px;  /* 8px grid */
    background: #1e293b;  /* Slate 800 */
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    margin-bottom: 16px;  /* 8px grid */
}

.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;  /* 8px grid */
}

/* ==========================================================================
   Warning Banner - Luminous amber theme
   ========================================================================== */

.warning-banner {
    display: none;
    background: rgba(251, 191, 36, 0.15);  /* Amber luminous */
    border: 1px solid rgba(251, 191, 36, 0.3);
    color: #fcd34d;  /* Amber 300 */
    padding: 16px 24px;  /* 8px grid */
    border-radius: 12px;
    margin-bottom: 24px;  /* 8px grid */
    align-items: center;
    gap: 16px;  /* 8px grid */
}

.warning-banner.visible {
    display: flex;
}

/* ==========================================================================
   Cohort Table Heatmap - Luminous colors
   ========================================================================== */

.cohort-cell {
    display: inline-block;
    padding: 4px 8px;  /* 8px grid */
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.cohort-cell--high {
    background: rgba(16, 185, 129, 0.15);  /* Emerald luminous */
    color: #34d399;  /* Emerald 400 */
}

.cohort-cell--medium {
    background: rgba(251, 191, 36, 0.15);  /* Amber luminous */
    color: #fcd34d;  /* Amber 300 */
}

.cohort-cell--low {
    background: rgba(244, 63, 94, 0.15);  /* Rose luminous */
    color: #fb7185;  /* Rose 400 */
}

.cohort-cell--none {
    background: rgba(51, 65, 85, 0.5);  /* Slate 700/50 */
    color: #64748b;  /* Slate 500 */
}

/* ==========================================================================
   Live Activity Section
   ========================================================================== */

.live-metric {
    transition: color 0.2s;
}

.live-metric.zero-value {
    color: #64748b;  /* Slate 500 */
}

/* Live Activity - compact inline badges */
.live-event-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;  /* 8px grid */
    padding: 2px 8px;  /* 8px grid */
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    font-size: 11px;
    white-space: nowrap;
}

.live-event-badge .event-name {
    color: #e5e7eb;  /* Gray 200 */
    font-weight: 500;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.live-event-badge .event-flag {
    font-size: 12px;
}

.live-event-badge .event-time {
    color: rgba(255, 255, 255, 0.4);
}

.live-empty {
    color: #64748b;  /* Slate 500 */
    font-size: 11px;
    font-style: italic;
}

/* ==========================================================================
   Conversion Tab - Session Bars
   ========================================================================== */

.session-bar-new {
    background: linear-gradient(to top, #6366f1, #818cf8);  /* Indigo gradient */
    border-radius: 6px;
    min-height: 24px;  /* 8px grid */
    transition: height 0.3s ease;
}

/* ==========================================================================
   Scrollable Table
   ========================================================================== */

.scrollable-table {
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #475569 transparent;  /* Slate 600 */
}

/* ==========================================================================
   Sortable Table Headers
   ========================================================================== */

.sortable-header {
    cursor: pointer;
    user-select: none;
    transition: color 0.15s;
}

.sortable-header:hover {
    color: #818cf8;  /* Indigo 400 */
}

.sortable-header .sort-icon {
    opacity: 0.3;
    transition: opacity 0.15s;
}

.sortable-header:hover .sort-icon {
    opacity: 0.6;
}

.sortable-header.sort-active {
    color: #818cf8;  /* Indigo 400 */
}

.sortable-header.sort-active .sort-icon {
    opacity: 1;
}

/* ==========================================================================
   Info Tooltip - Dark theme
   ========================================================================== */

.info-tooltip {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    font-size: 11px;
    font-weight: 600;
    color: #94a3b8;  /* Slate 400 */
    background: rgba(51, 65, 85, 0.5);  /* Slate 700/50 */
    border-radius: 50%;
    cursor: help;
    transition: all 0.15s;
}

.info-tooltip:hover {
    background: #334155;  /* Slate 700 */
    color: #f8fafc;  /* Slate 50 */
}

.info-tooltip::after {
    content: attr(data-tip);
    position: absolute;
    top: calc(100% + 8px);  /* 8px grid */
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 14px;
    background: #334155;  /* Slate 700 - Overlay color */
    color: #f8fafc;  /* Slate 50 */
    font-size: 12px;
    font-weight: 400;
    line-height: 1.5;
    white-space: normal;
    width: 240px;
    max-width: 280px;
    text-align: left;
    border-radius: 8px;  /* 8px grid */
    border: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.1s, visibility 0.1s;
    z-index: 1000;
    pointer-events: none;
}

.info-tooltip::before {
    content: '';
    position: absolute;
    top: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-bottom-color: #334155;  /* Slate 700 */
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.1s, visibility 0.1s;
    z-index: 1000;
}

.info-tooltip:hover::after,
.info-tooltip:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Tooltip alignment variants for edge columns */
.info-tooltip.tooltip-left::after {
    left: auto;
    right: 0;
    transform: translateX(0);
}

.info-tooltip.tooltip-left::before {
    left: auto;
    right: 12px;
    transform: translateX(0);
}

.info-tooltip.tooltip-right::after {
    left: auto;
    right: 0;
    transform: translateX(0);
}

.info-tooltip.tooltip-right::before {
    left: auto;
    right: 12px;
    transform: translateX(0);
}

/* Globe panel tooltip trigger - JS-based floating tooltip */
.globe-tooltip-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    font-size: 10px;
    font-weight: 600;
    color: #94a3b8;  /* Slate 400 */
    background: rgba(51, 65, 85, 0.8);  /* Slate 700/80 */
    border-radius: 50%;
    cursor: help;
    transition: all 0.15s;
}

.globe-tooltip-trigger:hover {
    background: #475569;  /* Slate 600 */
    color: #f8fafc;  /* Slate 50 */
}

/* ==========================================================================
   Behavior Tab - Lift Items (Boosters/Blockers)
   ========================================================================== */

.lift-item {
    display: flex;
    align-items: center;
    gap: 12px;  /* 8px grid */
    padding: 12px 0;  /* 8px grid */
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.lift-event {
    flex-shrink: 0;
    width: 120px;
    font-size: 13px;
    font-weight: 500;
    color: #cbd5e1;  /* Slate 300 */
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.lift-bar-container {
    flex: 1;
    height: 8px;  /* 8px grid */
    background: rgba(51, 65, 85, 0.5);  /* Slate 700/50 */
    border-radius: 4px;
    overflow: hidden;
}

.lift-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
}

.lift-bar--positive {
    background: linear-gradient(90deg, #10b981, #34d399);  /* Emerald gradient */
}

.lift-bar--negative {
    background: linear-gradient(90deg, #f43f5e, #fb7185);  /* Rose gradient */
}

.lift-value {
    flex-shrink: 0;
    min-width: 52px;
    text-align: right;
    font-size: 13px;
    font-weight: 600;
}

.lift-value--positive {
    color: #34d399;  /* Emerald 400 */
}

.lift-value--negative {
    color: #fb7185;  /* Rose 400 */
}

/* New detailed lift items for Behavior tab */
.lift-item-detailed {
    padding: 12px 0;  /* 8px grid */
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.lift-item-detailed:last-of-type {
    border-bottom: none;
}

/* ==========================================================================
   Behavior Tab - Signal Cards
   ========================================================================== */

.signal-card {
    background: #1e293b;  /* Slate 800 */
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 16px;  /* 8px grid */
    transition: all 0.2s;
}

.signal-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.signal-card--boost {
    border-left: 3px solid #34d399;  /* Emerald 400 */
    padding-left: 20px;
}

.signal-card--hurt {
    border-left: 3px solid #fb7185;  /* Rose 400 */
    padding-left: 20px;
}

.signal-event {
    font-size: 14px;
    font-weight: 600;
    color: #f8fafc;  /* Slate 50 */
    margin-bottom: 8px;  /* 8px grid */
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.signal-adjustment {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;  /* 8px grid */
}

.signal-adjustment--positive {
    color: #34d399;  /* Emerald 400 */
}

.signal-adjustment--negative {
    color: #fb7185;  /* Rose 400 */
}

.signal-meta {
    display: flex;
    align-items: center;
    gap: 8px;  /* 8px grid */
    flex-wrap: wrap;
    font-size: 11px;
    color: #94a3b8;  /* Slate 400 */
}

.signal-confidence {
    letter-spacing: -1px;
}

.signal-early {
    background: rgba(251, 191, 36, 0.15);  /* Amber luminous */
    border: 1px solid rgba(251, 191, 36, 0.3);
    color: #fcd34d;  /* Amber 300 */
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
    position: relative;
    cursor: help;
}

.signal-early::after {
    content: attr(data-tip);
    position: absolute;
    bottom: calc(100% + 8px);  /* 8px grid */
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 12px;  /* 8px grid */
    background: #334155;  /* Slate 700 */
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #f8fafc;  /* Slate 50 */
    font-size: 12px;
    font-weight: 400;
    line-height: 1.4;
    white-space: nowrap;
    border-radius: 6px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.1s, visibility 0.1s;
    z-index: 50;
    pointer-events: none;
}

.signal-early::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #334155;  /* Slate 700 */
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.1s, visibility 0.1s;
    z-index: 50;
}

.signal-early:hover::after,
.signal-early:hover::before {
    opacity: 1;
    visibility: visible;
}

/* ==========================================================================
   Retention Tab Styles
   ========================================================================== */

.retention-granularity-btn {
    transition: all 0.2s ease;
}

.retention-granularity-btn.active {
    background: #1e293b;  /* Slate 800 */
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #a78bfa;  /* Purple 400 */
    font-weight: 600;
}

.retention-table {
    border-collapse: separate;
    border-spacing: 0;
}

.retention-table thead th {
    position: sticky;
    top: 0;
    z-index: 10;
}

.retention-table tbody tr:hover {
    background: rgba(139, 92, 246, 0.15) !important;  /* Purple luminous */
}

/* Engagement Chart Styles */
#engagementChart {
    position: relative;
}

#engagementLabels {
    display: flex;
    justify-content: space-around;
    margin-top: 12px;  /* 8px grid */
}

/* Purple theme color variants - Dark theme adjusted */
.text-purple-50 { color: #f3e8ff; }
.text-purple-100 { color: #e9d5ff; }
.text-purple-600 { color: #a78bfa; }  /* Purple 400 for dark backgrounds */
.text-purple-700 { color: #8b5cf6; }  /* Purple 500 */
.text-purple-800 { color: #7c3aed; }  /* Purple 600 */
.text-purple-900 { color: #6d28d9; }  /* Purple 700 */

.bg-purple-50 { background-color: rgba(139, 92, 246, 0.15); }  /* Purple luminous */
.bg-purple-100 { background-color: rgba(139, 92, 246, 0.2); }
.bg-purple-600 { background-color: #8b5cf6; }
.bg-purple-700 { background-color: #7c3aed; }

.border-purple-100 { border-color: rgba(139, 92, 246, 0.3); }

.hover\:bg-purple-50\/30:hover {
    background-color: rgba(139, 92, 246, 0.15);
}

.hover\:bg-purple-700:hover {
    background-color: #7c3aed;
}