body {
    margin: 0;
    font-family: Arial, sans-serif;
}

h1 {
    text-align: center;
    padding: 10px 10px 0;
    margin: 0;
}

.subtitle {
    text-align: center;
    margin: 0 0 10px;
    color: #666;
}

#controls {
    text-align: center;
    margin-bottom: 10px;
}

#controls button {
    padding: 8px 20px;
    margin: 0 4px;
    border: 1px solid #ccc;
    background: #fff;
    cursor: pointer;
    font-size: 14px;
    border-radius: 4px;
}

#controls button:hover {
    background: #f0f0f0;
}

#controls button.active {
    background: #4472c4;
    color: #fff;
    border-color: #4472c4;
}

#layout {
    display: flex;
    height: 90vh;
}

#map-column {
    flex: 3;
    display: flex;
    flex-direction: column;
    min-height: 0;
    min-width: 0;
}

#map-container {
    flex: 1;
    min-height: 0;
    overflow: hidden;
    cursor: grab;
    transition: opacity 0.25s ease;
}

#map-container:active {
    cursor: grabbing;
}

#map-container svg {
    display: block;
}

#map-container.mode-transition {
    opacity: 0.55;
}

#legend-container {
    display: flex;
    justify-content: center;
    padding: 8px 0 4px;
}

#timeline {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 20px 16px;
    gap: 6px;
}

#timeline-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

#playBtn {
    padding: 6px 16px;
    border: 1px solid #ccc;
    background: #fff;
    cursor: pointer;
    font-size: 14px;
    border-radius: 4px;
    min-width: 90px;
}

#playBtn:hover {
    background: #f0f0f0;
}

#playBtn.playing {
    background: #4472c4;
    color: #fff;
    border-color: #4472c4;
}

#yearLabel {
    font-size: 20px;
    font-weight: bold;
    color: #4472c4;
}

#yearSlider {
    width: min(600px, 90%);
    cursor: pointer;
}

#year-ticks {
    display: flex;
    justify-content: space-between;
    width: min(600px, 90%);
    font-size: 11px;
    color: #888;
}

.legend-title {
    font-size: 12px;
    font-weight: bold;
    fill: #333;
}

.legend-label {
    font-size: 11px;
    fill: #555;
}

#info-panel {
    flex: 1;
    padding: 20px;
    border-left: 1px solid #ccc;
    background: #f8f8f8;
    overflow-y: auto;
    transition: transform 0.35s ease, opacity 0.35s ease;
}

#panel-title {
    font-size: 14px;
    color: #888;
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#country-name {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.3;
}

#population,
#area,
#density {
    margin-bottom: 8px;
    font-size: 15px;
}

.hidden {
    display: none;
}

.compare-row {
    display: flex;
    flex-direction: column;
    margin-bottom: 12px;
}

.compare-label {
    font-size: 12px;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    margin-bottom: 4px;
}

.compare-values {
    font-size: 18px;
    font-weight: 600;
}

.compare-values .vs-a {
    color: #4472c4;
}

.compare-values .vs-b {
    color: #e74c3c;
}

.compare-values .vs-sep {
    color: #999;
    font-weight: 400;
    margin: 0 6px;
}

.section-subtitle {
    font-size: 13px;
    color: #666;
    margin: 20px 0 10px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 6px;
}

#trajectory-section {
    overflow: visible;
}

#trajectory-section .section-subtitle {
    margin-top: 16px;
}

#trajectory-chart {
    width: 100%;
    overflow: visible;
}

#trajectory-chart svg {
    display: block;
    width: 100%;
    height: auto;
    overflow: visible;
}

#race-section {
    margin-top: 8px;
}

#race-year {
    font-weight: normal;
    color: #4472c4;
}

.country-path {
    cursor: pointer;
}

.country-path.compare-dim {
    opacity: 0.35;
}

.dorling-circles-layer {
    pointer-events: all;
}

.dorling-labels-layer {
    pointer-events: none;
}

.dorling-circle {
    cursor: pointer;
    stroke: #fff;
    stroke-width: 1;
    opacity: 0.95;
}

.dorling-circle.compare-dim {
    opacity: 0.3;
}

.dorling-circle.dorling-selected-a {
    stroke: #4472c4;
    stroke-width: 3;
    opacity: 1;
}

.dorling-circle.dorling-selected-b {
    stroke: #e74c3c;
    stroke-width: 3;
    opacity: 1;
}

.dorling-label {
    font-size: 11px;
    font-weight: 600;
    fill: #222;
    pointer-events: none;
    paint-order: stroke fill;
    stroke: #fff;
    stroke-width: 3px;
    stroke-linejoin: round;
}

.dorling-label-pop {
    font-size: 10px;
    font-weight: 500;
    fill: #555;
    stroke-width: 2.5px;
}

#map-container.dorling-active {
    background: #f4f8fc;
}

#race-chart,
#race-chart-bottom {
    position: relative;
    width: 100%;
    height: 320px;
}

#race-bottom-section .section-subtitle {
    margin-top: 12px;
}

#race-chart-bottom .race-bar {
    background: linear-gradient(90deg, #c0392b, #e74c3c);
}

.race-row {
    position: absolute;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    height: 28px;
    padding: 0 4px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
}

.race-row:hover {
    background: rgba(68, 114, 196, 0.1);
}

.race-row.highlight-a {
    outline: 2px solid #4472c4;
}

.race-row.highlight-b {
    outline: 2px solid #e74c3c;
}

.race-rank {
    width: 22px;
    font-weight: bold;
    color: #888;
    font-size: 12px;
    text-align: right;
    margin-right: 6px;
}

.race-bar-wrap {
    flex: 1;
    height: 18px;
    background: #eee;
    border-radius: 3px;
    overflow: hidden;
    margin-right: 8px;
}

.race-bar {
    height: 100%;
    background: linear-gradient(90deg, #4472c4, #6a9bd8);
    border-radius: 3px;
    min-width: 2px;
}

#race-chart.growth-mode .race-bar {
    background: linear-gradient(90deg, #27ae60, #58d68d);
}

#race-chart.density-mode .race-bar {
    background: linear-gradient(90deg, #2980b9, #5dade2);
}

#race-chart.density-mode .race-pop {
    width: 108px;
    font-size: 11px;
}

#race-chart.density-mode .race-name {
    width: 78px;
}

#race-chart.area-mode .race-bar {
    background: linear-gradient(90deg, #8e6b3d, #c9a66b);
}

.race-name {
    width: 90px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

.race-pop {
    width: 72px;
    text-align: right;
    color: #555;
    font-size: 12px;
}