/* Reset */
body, h1, h2, h3, p, a, div, header, footer, nav, ul, li, button, input, span {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand */
    --color-primary: #f7a11b;
    --color-primary-hover: #df8f15;
    --color-dark-bg: #222;
    --color-text-dark: #333;
    --color-text-medium: #666;
    --color-text-muted: #898781;
    --color-border: #e1e0d9;
    --color-bg-page: #f5f5f5;
    --color-bg-card: #ffffff;
    --color-bg-track: #f0efec;

    /* Single-hue accent used across every single-series chart mark
       (line/area fill, ranked-list bars). Darkened from --color-primary
       to clear 3:1 contrast on white; direct value labels provide the
       relief channel required below 3:1. */
    --accent-mark: #df8f15;
    --accent-mark-wash: rgba(223, 143, 21, 0.12);

    /* Domain -> color mapping. Shared visual language with the ontology
       network graph's legend, so a domain reads the same color everywhere. */
    --domain-information-management: #1f77b4;
    --domain-production-process: #aec7e8;
    --domain-energy: #ff7f0e;
    --domain-planning-permission: #ffbb78;
    --domain-facilities-management: #2ca02c;
    --domain-be-product-infrastructure: #98df8a;
    --domain-safety: #d62728;
    --domain-circular-economy: #ff9896;
    --domain-resources: #9467bd;
    --domain-comfort: #c5b0d5;
    --domain-geographic-information: #8c564b;
    --domain-be-product-building: #c49c94;
    --domain-geometry: #e377c2;
    --domain-quality: #f7b6d2;
    --domain-iot-sensors-actuators: #7f7f7f;
    --domain-weather-climate: #c7c7c7;
    --domain-materials: #bcbd22;
    --domain-mobility-transport: #dbdb8d;
    --domain-fire-safety: #17becf;
    --domain-standards-codes-and-certifications: #9edae5;
    --domain-default: #999999;
}

/* Background and layout */
body {
    background: linear-gradient(145deg, #f5f5f5, #f5f5f5);
    color: #333;
    font-family: 'Poppins', sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header Ribbon - shared across all pages */
.header-ribbon {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 24px;
    background: #222;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 38px;
    width: auto;
    transition: transform 0.3s;
}

.logo img:hover {
    transform: scale(1.1);
}

.logo a {
    color: #f7a11b;
    text-decoration: none;
    font-weight: bold;
    font-size: 15px;
    transition: color 0.3s;
}

.logo a:hover {
    color: #e69518;
}

.logo a:visited {
    color: #f7a11b;
}

/* Navigation Menu - shared across all pages */
.nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 22px;
    margin: 0;
}

.nav ul li a {
    color: #f7a11b;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
    transition: color 0.3s, border-color 0.3s;
}

.nav ul li a:hover {
    color: #e69518;
}

.nav ul li a.nav-current {
    color: #fff;
    border-bottom-color: #f7a11b;
}

.repo-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px !important;
    background-color: #333;
    border: 1px solid #444;
    border-radius: 20px;
    font-size: 15px;
    color: #f7a11b !important;
    transition: background-color 0.3s, color 0.3s;
}

.repo-link:hover {
    background-color: #f7a11b;
    color: #fff !important;
}

/* ---------- Analytics dashboard ---------- */

main.analytics-page {
    flex: 1;
    width: 100%;
    max-width: 1320px;
    margin: 40px auto;
    padding: 0 24px 40px;
}

.page-intro {
    text-align: center;
    margin-bottom: 32px;
}

.page-intro h1 {
    font-size: 32px;
    font-weight: bold;
    color: #282828;
    margin-bottom: 8px;
}

.page-intro p {
    font-size: 15px;
    color: var(--color-text-medium);
}

.stat-tiles {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
}

.stat-tile {
    background: var(--color-bg-card);
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 16px 26px;
    min-width: 150px;
    text-align: center;
}

.stat-tile-value {
    font-size: 28px;
    font-weight: 700;
    color: #282828;
    line-height: 1.2;
}

.stat-tile-label {
    font-size: 12.5px;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.widgets-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.widget-card {
    background: var(--color-bg-card);
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 24px;
}

.widget-card.full-width {
    grid-column: 1 / -1;
}

.widget-card h2 {
    font-size: 17px;
    font-weight: 700;
    color: #282828;
    margin-bottom: 4px;
}

.widget-subtitle {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 18px;
}

.widget-subtitle a {
    color: var(--accent-mark);
    text-decoration: underline;
}

.widget-subtitle a:hover {
    color: var(--color-text-dark);
}

.widget-empty {
    font-size: 13px;
    color: var(--color-text-muted);
    padding: 12px 0;
}

/* ---------- Dual-handle range slider (FOOPs score range) ---------- */

.range-slider-wrap {
    flex: 1 1 220px;
    max-width: 320px;
    min-width: 200px;
}

.range-slider-values {
    display: flex;
    justify-content: flex-end;
    font-size: 12.5px;
    color: var(--color-text-muted);
    margin-bottom: 6px;
    white-space: nowrap;
}

.range-slider-values span span {
    font-weight: 700;
    color: var(--color-text-dark);
    font-variant-numeric: tabular-nums;
}

.range-slider {
    position: relative;
    height: 20px;
}

.range-slider-track {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-bg-track);
    border-radius: 2px;
    transform: translateY(-50%);
}

.range-slider-fill {
    position: absolute;
    top: 50%;
    height: 4px;
    background: var(--accent-mark);
    border-radius: 2px;
    transform: translateY(-50%);
}

.range-slider input[type="range"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20px;
    margin: 0;
    background: none;
    pointer-events: none;
    -webkit-appearance: none;
    appearance: none;
    z-index: 3;
}

.range-slider input[type="range"].active-thumb {
    z-index: 4;
}

.range-slider input[type="range"]::-webkit-slider-runnable-track {
    background: transparent;
    height: 20px;
}

.range-slider input[type="range"]::-moz-range-track {
    background: transparent;
    height: 20px;
    border: none;
}

.range-slider input[type="range"]::-webkit-slider-thumb {
    pointer-events: auto;
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    margin-top: 2px;
    border-radius: 50%;
    background: var(--accent-mark);
    border: 2px solid #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
    cursor: pointer;
}

.range-slider input[type="range"]::-moz-range-thumb {
    pointer-events: auto;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-mark);
    border: 2px solid #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
    cursor: pointer;
}

/* ---------- List controls (metric / top-N pickers) ---------- */

.list-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.list-control {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    color: var(--color-text-muted);
}

.list-control select {
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 13px;
    color: var(--color-text-dark);
    font-family: inherit;
    cursor: pointer;
    outline: none;
}

.list-control-number {
    width: 80px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 13px;
    color: var(--color-text-dark);
    font-family: inherit;
    outline: none;
}

.list-reset-btn {
    border: none;
    background: none;
    color: var(--accent-mark);
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 0;
    text-decoration: underline;
}

.list-reset-btn:hover {
    color: var(--color-text-dark);
}

/* ---------- Ranked lists (Most Connected / Most Referenced / Most Classes) ---------- */

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

.ranked-row {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
}

.ranked-row-fill {
    position: absolute;
    inset: 0;
    width: var(--pct, 0%);
    background: var(--accent-mark-wash);
    border-radius: inherit;
    transition: width 0.4s ease;
}

.ranked-rank {
    position: relative;
    width: 18px;
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
}

.ranked-dot {
    position: relative;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    flex-shrink: 0;
}

.ranked-name {
    position: relative;
    flex: 1;
    min-width: 0;
    font-size: 14px;
    color: var(--color-text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ranked-value {
    position: relative;
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-mark);
    font-variant-numeric: tabular-nums;
    min-width: 28px;
    text-align: right;
}

.ranked-remove {
    position: relative;
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.06);
    color: var(--color-text-muted);
    font-size: 13px;
    line-height: 1;
    cursor: pointer;
}

.ranked-remove:hover {
    background: rgba(0, 0, 0, 0.12);
    color: var(--color-text-dark);
}

/* ---------- Domain coverage bars ---------- */

.domain-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.domain-row {
    display: grid;
    grid-template-columns: minmax(120px, 200px) 1fr 34px;
    align-items: center;
    gap: 12px;
    padding: 3px 6px;
    margin: 0 -6px;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    background: none;
    box-shadow: none;
    appearance: none;
    -webkit-appearance: none;
    width: calc(100% + 12px);
    font: inherit;
    color: inherit;
    text-align: inherit;
}

.domain-row:hover {
    background: #f5f5f5;
}

.domain-row:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.domain-label {
    font-size: 13px;
    color: var(--color-text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.domain-track {
    height: 16px;
    background: var(--color-bg-track);
    border-radius: 4px;
    overflow: hidden;
}

.domain-fill {
    height: 100%;
    border-radius: 0 4px 4px 0;
    min-width: 2px;
}

.domain-value {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-text-dark);
    font-variant-numeric: tabular-nums;
    text-align: right;
}

/* ---------- Chart.js containers ---------- */

.chart-container {
    position: relative;
    height: 320px;
}

/* ---------- Ontology list drill-down modal (year / domain click-throughs) ---------- */

.ontology-list-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.ontology-list-modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.ontology-list-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -48%);
    width: min(480px, calc(100% - 48px));
    max-height: 70vh;
    background: var(--color-bg-card);
    border-radius: 14px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
    z-index: 201;
    display: flex;
    flex-direction: column;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.ontology-list-modal.open {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, -50%);
}

.ontology-list-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.ontology-list-modal-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: #282828;
}

.ontology-list-modal-close {
    border: none;
    background: transparent;
    font-size: 24px;
    line-height: 1;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
}

.ontology-list-modal-close:hover {
    color: var(--color-text-dark);
}

.ontology-list-modal-list {
    list-style: none;
    overflow-y: auto;
    padding: 10px 12px 16px;
}

.ontology-list-modal-list-empty {
    padding: 20px 10px;
    font-size: 13px;
    color: var(--color-text-muted);
    text-align: center;
}

.ontology-list-modal-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--color-text-dark);
}

.ontology-list-modal-link:hover,
.ontology-list-modal-link:focus-visible {
    background: #f5f5f5;
}

.ontology-list-modal-link-title {
    font-size: 13.5px;
}

.ontology-list-modal-link-domain {
    font-size: 11.5px;
    color: var(--color-text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

/* ---------- Compare Ontologies tool ---------- */

.compare-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 20px;
}

.compare-search-wrap {
    position: relative;
    max-width: 760px;
    flex: 2 1 480px;
}

.compare-search {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 12px 16px;
}

.compare-search span.plus {
    color: var(--color-text-muted);
    font-weight: 700;
    flex-shrink: 0;
}

.compare-search input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    outline: none;
    color: #333;
    font-size: 14px;
}

.compare-search input::placeholder {
    color: #999;
}

.compare-suggestions {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    max-height: 260px;
    overflow-y: auto;
    z-index: 20;
    display: none;
}

.compare-suggestions.open {
    display: block;
}

.compare-suggestion {
    display: block;
    width: 100%;
    text-align: left;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--color-text-dark);
    background: none;
    border: none;
    cursor: pointer;
}

.compare-suggestion:hover,
.compare-suggestion:focus-visible {
    background: #f5f5f5;
}

.compare-suggestion-empty {
    padding: 12px 14px;
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ---------- Browse by domain ---------- */

.domain-browse {
    position: relative;
    flex: 0 0 auto;
}

.domain-browse-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 14px;
    font-family: inherit;
    color: var(--color-text-dark);
    cursor: pointer;
    height: 100%;
}

.domain-browse-toggle:hover {
    background: #eeeeee;
}

.domain-browse-badge {
    background: var(--color-primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    border-radius: 999px;
    padding: 1px 7px;
    line-height: 1.5;
}

.domain-browse-chevron {
    color: var(--color-text-muted);
    font-size: 11px;
    transition: transform 0.2s ease;
}

.domain-browse-toggle[aria-expanded="true"] .domain-browse-chevron {
    transform: rotate(180deg);
}

.domain-browse-panel {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    width: 360px;
    max-width: calc(100vw - 48px);
    max-height: 420px;
    overflow-y: auto;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    z-index: 20;
    padding: 6px;
}

.domain-browse-group {
    border-bottom: 1px solid #f2f1ec;
}

.domain-browse-group:last-child {
    border-bottom: none;
}

.domain-browse-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 6px;
}

.domain-browse-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    flex-shrink: 0;
}

.domain-browse-expand {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
    background: none;
    border: none;
    font: inherit;
    text-align: left;
    cursor: pointer;
    padding: 0;
}

.domain-browse-name {
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.domain-browse-count {
    font-size: 12px;
    color: var(--color-text-muted);
    font-variant-numeric: tabular-nums;
}

.domain-browse-chevron-small {
    color: var(--color-text-muted);
    font-size: 10px;
    transition: transform 0.2s ease;
}

.domain-browse-row.open .domain-browse-chevron-small {
    transform: rotate(180deg);
}

.domain-browse-items {
    padding: 0 6px 8px 29px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.domain-browse-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    color: var(--color-text-dark);
    cursor: pointer;
    padding: 2px 0;
}

.domain-browse-item input[type="checkbox"] {
    accent-color: var(--color-primary-hover);
    cursor: pointer;
}

.domain-browse-item.is-disabled {
    color: var(--color-text-muted);
    cursor: not-allowed;
}

.compare-cards {
    display: grid;
    /* Fixed 5-column track, not auto-fit -- so a single selected card sits
       at 1/5 width instead of stretching to fill the whole row. */
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
}

.compare-card {
    position: relative;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 16px;
    border-top: 3px solid var(--card-accent, var(--color-primary));
}

.compare-card-remove {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: none;
    background: #f0efec;
    color: var(--color-text-medium);
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
}

.compare-card-remove:hover {
    background: #e2e1da;
}

.compare-card-title {
    font-size: 14px;
    font-weight: 700;
    color: #282828;
    padding-right: 26px;
    margin-bottom: 4px;
}

.compare-card-domain {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--card-accent, var(--color-primary));
    margin-bottom: 10px;
}

.compare-radar-wrap {
    position: relative;
    width: 190px;
    height: 190px;
    max-width: 100%;
    margin: 0 auto 10px;
}

.compare-card canvas.compare-radar {
    display: block;
}

.compare-metrics {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.compare-metric-row {
    display: flex;
    justify-content: space-between;
    font-size: 12.5px;
    padding: 3px 0;
    border-bottom: 1px solid #f2f1ec;
}

.compare-metric-row:last-child {
    border-bottom: none;
}

.compare-metric-label {
    color: var(--color-text-muted);
}

.compare-metric-value {
    color: var(--color-text-dark);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.compare-empty-state {
    height: 500px;
    border: 1px dashed var(--color-border);
    border-radius: 10px;
}

/* Back link */
/* Footer */
.footer {
    text-align: center;
    margin-top: auto;
    padding: 20px 0;
    background: #111;
    font-size: 0.9rem;
    color: #ccc;
}

/* Social icons container */
.social-icons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 15px;
}

/* Social icon links */
.social-icons a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: white;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    text-align: center;
    line-height: 40px;
}

/* Social icon images */
.social-icons img {
    width: 60%;
    height: 60%;
    object-fit: contain;
    vertical-align: middle;
    transition: transform 0.3s;
}

.social-icons img:hover {
    transform: scale(1.2);
}

@media (max-width: 1300px) {
    .compare-cards {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .widgets-grid {
        grid-template-columns: 1fr;
    }

    .domain-row {
        grid-template-columns: minmax(90px, 140px) 1fr 34px;
    }

    .compare-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 520px) {
    .compare-cards {
        grid-template-columns: 1fr;
    }
}