/* Precision/Recall Tradeoff for K Selection */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
    width: 100%; height: 100%;
    font-family: Arial, Helvetica, sans-serif;
    background: #f8fafc;
    color: #1f2937;
    overflow: hidden;
}
main {
    display: flex; flex-direction: column; height: 100%;
    padding: 12px 16px; gap: 10px;
}

.header { display: flex; align-items: baseline; gap: 12px; }
.title { font-weight: 700; font-size: 16px; color: #37474f; }
.subtitle { font-size: 12px; color: #64748b; }

.content {
    display: flex;
    gap: 12px;
    flex: 1 1 auto;
    min-height: 0;
}
.chart-pane {
    flex: 1 1 auto;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 8px;
    min-width: 0;
    position: relative;
}
.chart-pane canvas { width: 100% !important; height: 100% !important; }

.info-pane {
    width: 240px;
    flex: 0 0 240px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.readout-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}
.readout {
    background: #f1f5f9;
    border-radius: 4px;
    padding: 6px 8px;
}
.readout-label { font-size: 10px; color: #64748b; }
.readout-value { font-size: 16px; font-weight: 700; color: #c1440e; font-family: ui-monospace, Menlo, monospace; }

.verdict {
    background: #eff6ff;
    border-left: 3px solid #0277bd;
    color: #1e3a8a;
    padding: 8px 10px;
    font-size: 12px;
    border-radius: 4px;
    line-height: 1.4;
}
.verdict.good { background: #f0fdf4; border-left-color: #2e7d32; color: #14532d; }
.verdict.bad  { background: #fef2f2; border-left-color: #c62828; color: #7f1d1d; }
.verdict.warn { background: #fff7ed; border-left-color: #c2410c; color: #7c2d12; }

.legend {
    border-top: 1px solid #e2e8f0;
    padding-top: 8px;
    font-size: 11px;
}
.legend-item { display: flex; align-items: center; gap: 6px; padding: 2px 0; color: #475569; }
.dot { display: inline-block; width: 12px; height: 12px; border-radius: 3px; }

.controls {
    display: grid;
    grid-template-columns: auto 1fr 1fr 1fr;
    gap: 14px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 10px 12px;
    align-items: center;
}
.control-block {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 12px;
    color: #475569;
}
.control-block input[type=range] { width: 100%; }
.control-block:first-child {
    flex-direction: row;
    align-items: center;
    gap: 6px;
}