/* Material Design 3 (M3) Dark Theme Colors & Constants */
:root {
    /* Color Palette */
    --md-sys-color-background: #121212;
    --md-sys-color-on-background: #e6e1e5;
    
    --md-sys-color-surface: #1c1b1f;
    --md-sys-color-on-surface: #e6e1e5;
    --md-sys-color-surface-variant: #252429;
    --md-sys-color-on-surface-variant: #cac4d0;
    
    --md-sys-color-primary: #d0bcff;
    --md-sys-color-on-primary: #381e72;
    --md-sys-color-primary-container: #4f378b;
    --md-sys-color-on-primary-container: #eaddff;
    
    --md-sys-color-secondary: #ccc2dc;
    --md-sys-color-on-secondary: #332d41;
    --md-sys-color-secondary-container: #4a4458;
    --md-sys-color-on-secondary-container: #e8def8;
    
    --md-sys-color-outline: #49454f;
    --md-sys-color-outline-variant: #35333a;
    
    /* Semantic Colors */
    --color-success: #81c784;
    --color-success-bg: #1b5e20;
    --color-success-text: #e8f5e9;
    
    --color-warning: #ffb74d;
    --color-warning-bg: #e65100;
    --color-warning-text: #fff3e0;
    
    --color-error: #f28b82;
    --color-error-bg: #b71c1c;
    --color-error-text: #ffebee;
    
    --color-info: #64b5f6;
    
    /* Elevation shadows */
    --md-elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.3);
    --md-elevation-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.3);
    --md-elevation-3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px 0px rgba(0, 0, 0, 0.3);
}

/* Reset and Global Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    line-height: 1.5;
    padding: 16px;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Material Design Card components */
.m3-card {
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    border-radius: 12px;
    padding: 20px;
    transition: box-shadow 0.2s ease, background-color 0.2s ease;
}

.elevated-card {
    background-color: var(--md-sys-color-surface-variant);
    box-shadow: var(--md-elevation-1);
}

.elevated-card:hover {
    box-shadow: var(--md-elevation-2);
}

.outlined-card {
    border: 1px solid var(--md-sys-color-outline);
}

/* Header Styling */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    flex-wrap: wrap;
    gap: 16px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-icon {
    font-size: 36px;
    color: var(--md-sys-color-primary);
}

.app-header h1 {
    font-size: 28px;
    font-weight: 500;
    letter-spacing: -0.5px;
    color: var(--md-sys-color-on-background);
}

.header-subtitle {
    font-size: 14px;
    color: var(--md-sys-color-on-surface-variant);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Database Status Chip */
.status-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--md-sys-color-outline);
}

.status-chip.online {
    background-color: rgba(129, 199, 132, 0.1);
    color: var(--color-success);
    border-color: rgba(129, 199, 132, 0.3);
}

.status-chip.loading {
    background-color: rgba(100, 181, 246, 0.1);
    color: var(--color-info);
    border-color: rgba(100, 181, 246, 0.3);
}

.status-chip.error {
    background-color: rgba(242, 139, 130, 0.1);
    color: var(--color-error);
    border-color: rgba(242, 139, 130, 0.3);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    flex-shrink: 0;
}

/* Countdown circle timer */
.refresh-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.refresh-icon {
    font-size: 22px;
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    transition: transform 0.2s ease, color 0.2s ease;
    padding: 4px;
    border-radius: 50%;
}

.refresh-icon:hover {
    color: var(--md-sys-color-primary);
    background-color: var(--md-sys-color-outline-variant);
    transform: rotate(45deg);
}

.countdown-circle {
    position: relative;
    width: 32px;
    height: 32px;
}

.countdown-circle svg {
    width: 32px;
    height: 32px;
    transform: rotate(-90deg);
}

.countdown-circle circle {
    fill: none;
    stroke-width: 3px;
}

.countdown-circle circle:first-child {
    stroke: var(--md-sys-color-outline-variant);
}

.countdown-circle circle:last-child {
    stroke: var(--md-sys-color-primary);
    stroke-linecap: round;
    stroke-dasharray: 88;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 0.1s linear;
}

#countdown-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 10px;
    font-weight: bold;
    color: var(--md-sys-color-on-background);
}

/* Time Range segmented controls */
.controls-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.time-range-segmented-control {
    display: inline-flex;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 100px;
    overflow: hidden;
}

.segmented-btn {
    background: none;
    border: none;
    color: var(--md-sys-color-on-surface-variant);
    padding: 10px 20px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
    outline: none;
}

.segmented-btn:not(:last-child) {
    border-right: 1px solid var(--md-sys-color-outline);
}

.segmented-btn:hover {
    background-color: rgba(208, 188, 255, 0.08);
    color: var(--md-sys-color-primary);
}

.segmented-btn.active {
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.last-updated-text {
    font-size: 13px;
    color: var(--md-sys-color-on-surface-variant);
}

/* Stats Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon {
    font-size: 32px;
    padding: 12px;
    border-radius: 100px;
    background-color: var(--md-sys-color-outline-variant);
}

.primary-text { color: var(--md-sys-color-primary); }
.success-text { color: var(--color-success); }
.warning-text { color: var(--color-warning); }

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-content h2 {
    font-size: 24px;
    font-weight: 500;
    color: var(--md-sys-color-on-background);
    margin-top: 4px;
}

/* Top Split Row: Chart & Selector */
.chart-selector-layout {
    display: grid;
    grid-template-columns: 3fr 1fr; /* 75% left, 25% right */
    gap: 24px;
    align-items: stretch;
}

.chart-container-left {
    min-width: 0;
}

.selector-container-right {
    position: relative; /* Establishes positioning context */
    min-width: 0;
}

@media (max-width: 1024px) {
    .chart-selector-layout {
        grid-template-columns: 1fr;
    }
    .selector-container-right {
        position: relative;
        height: 500px; /* Give it a fixed height when stacked vertically */
    }
}

/* Selector Card and Checklist styling */
.selector-card {
    position: absolute;
    inset: 0; /* Fill the grid cell exactly — height is determined by the chart card */
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow: hidden;
}

.selector-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.selector-card-header h3 {
    font-size: 16px;
    font-weight: 500;
}

.search-box.compact {
    flex-grow: 0;
    flex-shrink: 0;
}

.search-box.compact input {
    padding: 8px 12px 8px 36px;
    font-size: 13px;
}

.search-box.compact .search-icon {
    font-size: 18px;
    left: 10px;
}

.m3-button.compact {
    padding: 6px 12px;
    font-size: 12px;
    gap: 4px;
}

.selector-list {
    flex: 1 1 0;     /* Grow to fill, shrink to fit, base size 0 */
    overflow-y: auto;
    padding-right: 4px;
}

.selector-list > .selector-item {
    margin-bottom: 6px;
}

.selector-list > .selector-item:last-child {
    margin-bottom: 0;
}

/* Scrollbar for selector list */
.selector-list::-webkit-scrollbar {
    width: 6px;
}

.selector-list::-webkit-scrollbar-track {
    background: transparent;
}

.selector-list::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline);
    border-radius: 10px;
}

.selector-list::-webkit-scrollbar-thumb:hover {
    background: var(--md-sys-color-primary);
}

.selector-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background-color: var(--md-sys-color-surface-variant);
    border-radius: 8px;
    transition: background-color 0.15s;
    font-size: 13px;
}

.selector-item:hover {
    background-color: var(--md-sys-color-outline-variant);
}

.selector-item-left {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.selector-server-name {
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 18px; /* Match checkbox height for vertical alignment */
}

.selector-item-right {
    font-size: 11px;
    color: var(--md-sys-color-on-surface-variant);
    background-color: var(--md-sys-color-outline-variant);
    padding: 2px 6px;
    border-radius: 100px;
    flex-shrink: 0;
}

/* Charts Section layout */
.charts-section {
    display: block;
}

.chart-card {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 520px; /* Taller Player History Chart! */
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 18px;
    font-weight: 500;
}

.card-header-icon {
    color: var(--md-sys-color-on-surface-variant);
}

.chart-wrapper {
    flex-grow: 1;
    width: 100%;
}

/* Pinned Servers Detail Grid */
.pinned-servers-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.section-title-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--md-sys-color-primary);
}

.section-title-wrapper h3 {
    font-size: 20px;
    font-weight: 500;
}

.pinned-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

@media (max-width: 800px) {
    .pinned-grid {
        grid-template-columns: 1fr;
    }
}

.pinned-detail-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 300px;
    min-width: 0;
    overflow: hidden;
}

.pinned-chart-wrapper {
    position: relative;
    width: 100%;
    min-height: 180px;
    overflow: hidden;
}

.pinned-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pinned-card-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pinned-server-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.pinned-server-status.online { background-color: var(--color-success); }
.pinned-server-status.offline { background-color: var(--color-error); }

.pinned-card-header h4 {
    font-size: 16px;
    font-weight: 500;
}

.pinned-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 12px;
    font-size: 12px;
    color: var(--md-sys-color-on-surface-variant);
}

.pinned-metric-pill {
    background-color: var(--md-sys-color-outline-variant);
    padding: 4px 10px;
    border-radius: 100px;
    white-space: nowrap;
}

.pinned-chart-wrapper {
    flex-grow: 1;
}

/* Filters bar card */
.filter-card {
    padding: 16px;
}

.filter-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.search-box {
    position: relative;
    flex-grow: 1;
    max-width: 400px;
}

@media (max-width: 600px) {
    .search-box {
        max-width: 100%;
    }
    .filter-row {
        flex-direction: column;
        align-items: stretch;
    }
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--md-sys-color-on-surface-variant);
    font-size: 20px;
}

.search-box input {
    width: 100%;
    background-color: var(--md-sys-color-outline-variant);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 100px;
    padding: 10px 16px 10px 44px;
    color: var(--md-sys-color-on-surface);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s, background-color 0.2s;
}

.search-box input:focus {
    border-color: var(--md-sys-color-primary);
    background-color: var(--md-sys-color-surface);
}

.filter-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.m3-dropdown {
    background-color: var(--md-sys-color-outline-variant);
    border: 1px solid var(--md-sys-color-outline);
    color: var(--md-sys-color-on-surface);
    padding: 10px 16px;
    border-radius: 100px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    cursor: pointer;
}

.m3-dropdown:focus {
    border-color: var(--md-sys-color-primary);
}

/* Material Design Button styles */
.m3-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-radius: 100px;
    padding: 10px 20px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    outline: none;
}

.m3-button.outlined {
    background: none;
    border: 1px solid var(--md-sys-color-outline);
    color: var(--md-sys-color-primary);
}

.m3-button.outlined:hover {
    background-color: rgba(208, 188, 255, 0.08);
    border-color: var(--md-sys-color-primary);
}

/* Servers List Table Styles */
.table-card {
    padding: 0;
    overflow: hidden;
}

.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.m3-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.m3-table th {
    background-color: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface-variant);
    text-align: left;
    padding: 14px 16px;
    font-weight: 500;
    border-bottom: 1px solid var(--md-sys-color-outline);
    white-space: nowrap;
    user-select: none;
}

.m3-table th.sortable {
    cursor: pointer;
    transition: background-color 0.2s;
}

.m3-table th.sortable:hover {
    background-color: var(--md-sys-color-outline-variant);
    color: var(--md-sys-color-on-surface);
}

.sort-indicator {
    font-size: 16px;
    vertical-align: middle;
    margin-left: 4px;
    color: var(--md-sys-color-outline);
}

.m3-table th.sortable:hover .sort-indicator {
    color: var(--md-sys-color-primary);
}

.m3-table th.active-sort .sort-indicator {
    color: var(--md-sys-color-primary);
}

.m3-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    vertical-align: middle;
}

.m3-table tbody tr {
    transition: background-color 0.15s ease;
}

.m3-table tbody tr:hover {
    background-color: var(--md-sys-color-outline-variant);
}

/* Column specific spacing */
.col-chart-toggle, .col-pin {
    text-align: center !important;
}

.checkbox-container {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    width: 18px;
    height: 18px;
    margin: 0;
    padding: 0;
    line-height: 1;
    user-select: none;
    box-sizing: border-box;
}

.checkbox-container input {
    display: none; /* Completely hide it so it doesn't affect baseline or flexbox metrics */
}

.checkmark {
    position: relative;
    display: inline-block;
    height: 18px;
    width: 18px;
    background-color: transparent;
    border: 2px solid var(--md-sys-color-outline);
    border-radius: 4px;
    transition: background-color 0.2s, border-color 0.2s;
    flex-shrink: 0;
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--md-sys-color-primary);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--md-sys-color-primary);
    border-color: var(--md-sys-color-primary);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 50%;
    top: 45%;
    width: 5px;
    height: 10px;
    border: solid var(--md-sys-color-on-primary);
    border-width: 0 2px 2px 0;
    transform: translate(-50%, -50%) rotate(45deg);
    transform-origin: center;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

/* Star Pin Button */
.star-btn {
    background: none;
    border: none;
    color: var(--md-sys-color-outline);
    cursor: pointer;
    outline: none;
    transition: transform 0.2s, color 0.2s;
    font-size: 20px;
}

.star-btn:hover {
    color: var(--color-warning);
    transform: scale(1.15);
}

.star-btn.pinned {
    color: var(--color-warning);
    font-variation-settings: 'FILL' 1; /* For material symbols fill */
}

/* Status Pill in Table */
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    padding: 2px 10px;
    border-radius: 100px;
}

.status-pill.online {
    background-color: rgba(129, 199, 132, 0.15);
    color: var(--color-success);
}

.status-pill.offline {
    background-color: rgba(242, 139, 130, 0.15);
    color: var(--color-error);
}

/* Ping values styling */
.ping-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 100px;
}

.ping-badge.good {
    background-color: rgba(129, 199, 132, 0.15);
    color: var(--color-success);
}

.ping-badge.warning {
    background-color: rgba(255, 183, 77, 0.15);
    color: var(--color-warning);
}

.ping-badge.bad {
    background-color: rgba(242, 139, 130, 0.15);
    color: var(--color-error);
}

/* Loading animations */
.m3-progress-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--md-sys-color-outline-variant);
    border-top: 4px solid var(--md-sys-color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-row p {
    color: var(--md-sys-color-on-surface-variant);
    font-size: 15px;
}

/* Tooltips */
.header-tooltip {
    cursor: help;
}

/* Footer styling */
.app-footer {
    text-align: center;
    padding: 24px 0 48px 0;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 12px;
    border-top: 1px solid var(--md-sys-color-outline-variant);
}

.app-footer code {
    background-color: var(--md-sys-color-outline-variant);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
}

/* Custom M3 Tooltip Styles */
.m3-tooltip {
    background-color: var(--md-sys-color-surface-container-high, #1c1b1f);
    color: var(--md-sys-color-on-surface, #e6e1e5);
    border: 1px solid var(--md-sys-color-outline, #49454f);
    border-radius: 8px;
    padding: 12px;
    font-family: Roboto, sans-serif;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
    min-width: 200px;
    max-width: 280px;
}

.m3-tooltip-title {
    font-weight: 500;
    font-size: 12px;
    margin-bottom: 8px;
    color: var(--md-sys-color-primary, #d0bcff);
    border-bottom: 1px solid var(--md-sys-color-outline-variant, #49454f);
    padding-bottom: 6px;
}

.m3-tooltip-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.m3-tooltip-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    gap: 16px;
}

.m3-tooltip-item-left {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.m3-tooltip-marker {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.m3-tooltip-name {
    font-weight: 400;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.m3-tooltip-value {
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant, #cac4d0);
    flex-shrink: 0;
}

.m3-tooltip-more {
    font-size: 11px;
    font-style: italic;
    color: var(--md-sys-color-primary, #d0bcff);
    text-align: center;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed var(--md-sys-color-outline-variant, #49454f);
}

/* Scale segmented button controls */
.scale-btn {
    border: none;
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    background: transparent;
    color: var(--md-sys-color-on-surface-variant, #cac4d0);
    transition: all 0.2s ease;
    outline: none;
}

.scale-btn.active {
    background: var(--md-sys-color-primary, #d0bcff);
    color: var(--md-sys-color-on-primary, #381e72);
}

.scale-btn:hover:not(.active) {
    background: rgba(208, 188, 255, 0.08); /* subtle hover state */
}