* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #1a1a2e;
    color: #eee;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#top-bar {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    background: #16213e;
    border-bottom: 1px solid #0f3460;
    flex-shrink: 0;
}

#title-section h1 { font-size: 18px; font-weight: 600; }
#title-section .subtitle { font-size: 12px; color: #8899aa; margin-left: 8px; }

#main {
    flex: 1;
    display: flex;
    overflow: hidden;
}

#matrix-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    overflow: auto;
}

#matrix-canvas {
    cursor: crosshair;
}

#detail-section {
    width: 320px;
    background: #16213e;
    border-left: 1px solid #0f3460;
    padding: 16px;
    overflow-y: auto;
}

#detail-section.hidden { display: none; }

#detail-section h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

#pair-stats {
    font-size: 13px;
    color: #8899aa;
    margin-bottom: 12px;
}

#pair-shared, #single-top-cited {
    font-size: 13px;
}

.shared-figure {
    padding: 3px 0;
    display: flex;
    justify-content: space-between;
}

.shared-figure .count {
    color: #667788;
}

#single-meta {
    font-size: 13px;
    color: #8899aa;
    margin-bottom: 12px;
}

.region-bar {
    display: flex;
    height: 18px;
    border-radius: 3px;
    overflow: hidden;
    margin: 8px 0;
}

.region-segment {
    height: 100%;
}