:root {
    --font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
    --font-body: "Avenir Next", "Segoe UI Variable Text", "Trebuchet MS", "Tahoma", sans-serif;
    --font-mono: "IBM Plex Mono", "Consolas", monospace;

    --bg-main: #f4eee7;
    --bg-warm: #fff8f1;
    --bg-ambient: #f2e8dc;
    --surface: #fffdf9;
    --surface-emphasis: #fff6ea;

    --line: #d9c2a8;
    --line-soft: #eadccf;

    --text-strong: #2e241b;
    --text: #4b3c2f;
    --text-muted: #796654;

    --accent: #b96d2d;
    --accent-strong: #97531c;
    --accent-soft: #f3ddc6;

    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --shadow-soft: 0 16px 36px rgba(85, 57, 28, 0.08);
    --shadow-card: 0 12px 28px rgba(72, 45, 19, 0.1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 62.5%;
}

body {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(1200px 500px at 95% -10%, rgba(245, 203, 160, 0.45), transparent 64%),
        radial-gradient(900px 380px at -5% -20%, rgba(174, 205, 193, 0.35), transparent 62%),
        linear-gradient(165deg, var(--bg-main), var(--bg-warm) 48%, #fbf5ed);
    color: var(--text);
    font-family: var(--font-body);
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        radial-gradient(circle at 10% 16%, rgba(185, 109, 45, 0.09) 0 3px, transparent 4px),
        radial-gradient(circle at 86% 84%, rgba(75, 60, 47, 0.08) 0 2px, transparent 3px);
    background-size: 180px 180px, 220px 220px;
    opacity: 0.32;
    z-index: -1;
}

a {
    color: var(--accent-strong);
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.16em;
}

a:hover {
    color: #7f4317;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.app-page {
    padding: 1.8rem 1.4rem 2.6rem;
}

.app-shell {
    max-width: 1520px;
    margin: 0 auto;
}

.app-masthead {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-lg);
    background: linear-gradient(
        120deg,
        rgba(255, 249, 240, 0.95),
        rgba(250, 239, 226, 0.92) 58%,
        rgba(255, 248, 240, 0.9)
    );
    box-shadow: var(--shadow-soft);
    margin-bottom: 1.6rem;
}

.app-masthead::after {
    content: "";
    position: absolute;
    width: 320px;
    height: 320px;
    top: -170px;
    right: -120px;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(185, 109, 45, 0.16), transparent 70%);
}

.app-masthead-inner {
    position: relative;
    z-index: 1;
    padding: 2rem 2.2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.6rem;
}

.app-masthead-copy {
    flex: 1 1 auto;
    min-width: 0;
}

.app-overline {
    margin: 0;
    font-size: 1.1rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent-strong);
    font-weight: 700;
}

.app-title {
    margin: 0.45rem 0 0.75rem;
    color: var(--text-strong);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2.4rem, 2.5vw, 3.6rem);
    letter-spacing: 0.015em;
    line-height: 1.08;
}

.app-subtitle {
    margin: 0;
    font-size: 1.45rem;
    color: var(--text-muted);
    max-width: 82ch;
}

.app-masthead-logo-link {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    padding: 0.35rem;
    cursor: pointer;
}

.app-masthead-logo {
    display: block;
    width: clamp(190px, 22vw, 320px);
    height: auto;
    max-height: 112px;
    object-fit: contain;
    cursor: pointer;
}

.app-tabs-shell {
    border-radius: var(--radius-md);
    border: 1px solid var(--line-soft);
    background: rgba(255, 251, 245, 0.86);
    padding: 0.8rem;
    box-shadow: var(--shadow-soft);
    margin-bottom: 1.4rem;
}

.app-tabs-shell .tab-content {
    padding-top: 1.2rem;
}

.app-tabs-nav {
    border-bottom: 0 !important;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.app-tabs-nav .nav-item {
    margin-bottom: 0;
}

.app-tabs-nav .nav-link {
    border: 1px solid transparent;
    border-radius: 999px;
    padding: 0.72rem 1.1rem;
    font-size: 1.28rem;
    color: var(--text-muted);
    background: transparent;
    transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.app-tabs-nav .nav-link:hover {
    color: var(--text-strong);
    border-color: var(--line);
    background: rgba(255, 245, 233, 0.8);
}

.app-tabs-nav .nav-link.active {
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    border-color: rgba(151, 83, 28, 0.76);
    font-weight: 600;
}

.app-content {
    min-height: 420px;
}

.page-frame {
    max-width: 1420px;
    margin: 0 auto;
    padding: 0;
}

.page-head {
    margin-bottom: 1.2rem;
}

.page-head-title {
    margin: 0;
    font-family: var(--font-display);
    color: var(--text-strong);
    font-size: clamp(2.1rem, 1.9vw, 3rem);
    font-weight: 600;
    letter-spacing: 0.01em;
}

.page-head-subtitle {
    margin: 0.45rem 0 0;
    font-size: 1.35rem;
    color: var(--text-muted);
    max-width: 86ch;
}

.app-card {
    position: relative;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-md);
    background: var(--surface);
    box-shadow: var(--shadow-card);
    padding: 1.4rem 1.5rem;
    margin-bottom: 1.25rem;
}

.controls-card {
    z-index: 40;
    background:
        linear-gradient(170deg, rgba(255, 251, 245, 0.96), rgba(255, 247, 237, 0.9));
}

.graph-card {
    padding: 1rem;
    overflow: visible;
    min-height: 660px;
}

.slider-card {
    padding-top: 1.1rem;
    padding-bottom: 1rem;
}

.info-card {
    padding: 1.2rem 1.4rem;
    font-size: 1.3rem;
    line-height: 1.52;
}

.slim-card {
    padding-top: 0.9rem;
    padding-bottom: 0.9rem;
}

.control-field {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.control-radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.control-radio-group .form-check {
    margin: 0;
    padding: 0;
}

.control-radio-group .form-check-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.control-radio-group .form-check-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fffaf3;
    color: var(--text);
    font-size: 1.22rem;
    font-weight: 600;
    padding: 0.45rem 0.9rem;
    cursor: pointer;
    transition: border-color 0.16s ease, background-color 0.16s ease, color 0.16s ease;
}

.control-radio-group .form-check-input:checked + .form-check-label {
    border-color: #ad723f;
    background: #f7e4cf;
    color: #35281e;
}

.control-radio-group .form-check-input:focus-visible + .form-check-label {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.control-label {
    margin: 0;
    font-size: 1.14rem;
    letter-spacing: 0.045em;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
}

.control-value-label {
    min-height: 38px;
    display: flex;
    align-items: center;
    font-size: 1.46rem;
    color: var(--text-strong);
    font-weight: 600;
}

.dash-dropdown .Select-control {
    border-radius: var(--radius-sm);
    border-color: var(--line) !important;
    box-shadow: none !important;
    background-color: #fffaf4;
    min-height: 40px;
}

.dash-dropdown .Select-control:hover {
    border-color: #c9ab8d !important;
}

.dash-dropdown.is-focused .Select-control,
.dash-dropdown.is-open .Select-control {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 1px rgba(185, 109, 45, 0.24) !important;
}

.dash-dropdown .Select-menu-outer {
    z-index: 6000 !important;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.dash-dropdown .VirtualizedSelectOption {
    font-size: 1.3rem;
}

.themed-slider .rc-slider-track {
    background-color: var(--accent);
}

.themed-slider .rc-slider-rail {
    background-color: #e8d4bf;
}

.themed-slider .rc-slider-handle {
    border-color: var(--accent-strong);
    background-color: #fff;
    width: 16px;
    height: 16px;
    margin-top: -6px;
    box-shadow: 0 0 0 3px rgba(185, 109, 45, 0.18);
}

.themed-slider .rc-slider-mark-text {
    color: #7a6654;
    font-size: 1.06rem;
}

.themed-graph {
    height: 620px;
}

.themed-graph .js-plotly-plot .plotly .modebar {
    background: rgba(255, 246, 236, 0.9);
    border-radius: 8px;
    border: 1px solid var(--line-soft);
}

.note-copy {
    margin: 0;
}

.guide-kpis {
    margin-top: 0.2rem;
    margin-bottom: 0.2rem;
}

.guide-kpi {
    height: 100%;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-sm);
    background: #fff8f0;
    padding: 0.9rem;
}

.guide-kpi h4 {
    margin: 0 0 0.35rem;
    font-family: var(--font-display);
    font-size: 1.55rem;
    color: var(--text-strong);
}

.guide-kpi p {
    margin: 0;
    font-size: 1.22rem;
    color: var(--text-muted);
    line-height: 1.45;
}

.tab-map-grid {
    margin-bottom: 0.15rem;
}

.tab-map-item {
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-sm);
    background: #fff9f2;
    padding: 0.85rem 0.95rem;
    height: 100%;
}

.tab-map-item h4 {
    margin: 0 0 0.35rem;
    font-size: 1.42rem;
    color: var(--text-strong);
}

.tab-map-item p {
    margin: 0;
    font-size: 1.22rem;
    color: var(--text-muted);
}

.callout-list {
    margin-bottom: 0;
}

.definition-grid {
    margin-bottom: 0.2rem;
}

.definition-card {
    border: 1px dashed #d3b99e;
    border-radius: var(--radius-sm);
    background: #fff7ed;
    padding: 0.85rem 0.95rem;
    height: 100%;
}

.definition-card h4 {
    margin: 0 0 0.3rem;
    font-size: 1.34rem;
    color: var(--text-strong);
}

.definition-card p {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-muted);
}

.view-summary {
    border: 1px dashed #cfb299;
    border-radius: var(--radius-sm);
    background: #fff7ec;
    padding: 0.85rem 0.95rem;
    color: #5b4838;
    font-size: 1.25rem;
    line-height: 1.45;
}

.view-summary strong {
    color: var(--text-strong);
}

.explainer-note {
    border-left: 4px solid var(--accent);
    padding-left: 0.85rem;
}

.citation-title {
    margin: 0 0 0.45rem;
    font-family: var(--font-display);
    font-size: 1.7rem;
    color: var(--text-strong);
}

.docs-card h5 {
    margin-bottom: 0.8rem;
    color: var(--text-strong);
}

.docs-card ul,
.docs-card ol {
    margin-left: 1.2rem;
}

.partner-grid {
    margin-bottom: 1.1rem;
}

.partner-link {
    display: block;
    text-decoration: none;
}

.partner-card {
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-md);
    background: rgba(255, 252, 247, 0.94);
    box-shadow: var(--shadow-soft);
    min-height: 132px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.4rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.partner-link:hover .partner-card {
    transform: translateY(-2px);
    border-color: #c6a888;
    box-shadow: 0 16px 30px rgba(80, 52, 24, 0.13);
}

.partner-logo {
    max-height: 72px;
    max-width: 100%;
    width: auto;
    object-fit: contain;
}

.playback-root {
    width: 100%;
}

.playback-slider-shell {
    display: grid;
    gap: 0.7rem;
}

.playback-header {
    margin: 0;
}

.playback-hint {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-muted);
    font-weight: 600;
}

.playback-trigger {
    border: 1px solid #b89b7d !important;
    background: linear-gradient(135deg, #fcf0e3, #f8e7d6) !important;
    color: var(--text-strong) !important;
    border-radius: 999px !important;
    min-width: 38px;
    min-height: 38px;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
}

.playback-trigger:hover,
.playback-trigger:focus {
    background: linear-gradient(135deg, #f7dfc6, #f2d2b0) !important;
}

.playback-year-slider .rc-slider-track {
    background-color: var(--accent);
}

.playback-year-slider .rc-slider-handle {
    border-color: var(--accent-strong);
    box-shadow: 0 0 0 3px rgba(185, 109, 45, 0.16);
}

.reveal {
    animation: rise-in 0.42s ease both;
}

@keyframes rise-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 991px) {
    .app-page {
        padding-inline: 1rem;
    }

    .app-masthead-inner {
        padding: 1.6rem;
        gap: 1.2rem;
    }

    .app-title {
        font-size: clamp(2.1rem, 5.2vw, 2.9rem);
    }

    .app-masthead-logo {
        width: clamp(160px, 26vw, 240px);
        max-height: 84px;
    }

    .themed-graph {
        height: 560px;
    }
}

@media (max-width: 768px) {
    .app-masthead-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .app-masthead-logo-link {
        align-self: flex-end;
    }

    .app-masthead-logo {
        width: clamp(150px, 48vw, 220px);
        max-height: 74px;
    }

    .app-tabs-nav .nav-link {
        font-size: 1.2rem;
        padding: 0.6rem 0.95rem;
    }

    .app-card {
        padding: 1.1rem;
    }

    .graph-card {
        padding: 0.7rem;
    }

    .themed-graph {
        height: 500px;
    }

    .control-radio-group .form-check-label {
        width: 100%;
        justify-content: flex-start;
    }

    .partner-card {
        min-height: 112px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .reveal,
    .partner-card,
    .app-tabs-nav .nav-link {
        animation: none !important;
        transition: none !important;
    }
}