/* ml.css — ML Risk Model explorer, charts and risk table */

.ml { padding: clamp(var(--space-4), 3vw, var(--space-6)); display: grid; gap: var(--space-5); }
.ml__panels { display: grid; }
.ml__panel { display: grid; gap: var(--space-5); min-width: 0; }
.ml__panel[hidden] { display: none; }
.ml__error { color: var(--risk-high); font-size: var(--fs-footnote); }

/* KPI tiles */
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-3); }
.kpi { padding: var(--space-4) var(--space-4) var(--space-4); border-radius: var(--r-md); background: var(--surface-2); }
.kpi__value {
  font-size: clamp(1.75rem, 1.3rem + 1.4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: var(--track-title);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.kpi__label { margin-top: var(--space-1); font-size: var(--fs-footnote); color: var(--text-2); }
@media (max-width: 719px) { .kpis { grid-template-columns: 1fr 1fr; } }

/* Notes */
.ml__note {
  --expander-bg: var(--surface-2);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--r-md);
  background: var(--surface-2);
  font-size: var(--fs-callout);
  line-height: 1.65;
  color: var(--text-2);
}
.ml__note .expander__toggle { margin-top: var(--space-1); }

/* Shortcomings & Improvements */
.limits { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); }
.limit {
  position: relative;
  padding: var(--space-4) var(--space-5) var(--space-4) calc(var(--space-5) + 10px);
  border-radius: var(--r-md);
  background: var(--surface-2);
  font-size: var(--fs-callout);
  line-height: 1.6;
  color: var(--text-2);
}
.limit::before {
  content: '';
  position: absolute; left: var(--space-4); top: calc(var(--space-4) + 0.45em);
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
}
.limit--limit::before { background: var(--risk-mid); }
.limit--improve::before { background: var(--positive); }
.limit strong { color: var(--text); font-weight: 650; }
.limit p + p { margin-top: var(--space-1); }
@media (max-width: 719px) { .limits { grid-template-columns: 1fr; } }

/* Charts */
.chart { position: relative; touch-action: pan-y; }
.chart__legend { display: flex; flex-wrap: wrap; gap: var(--space-4); font-size: var(--fs-footnote); color: var(--text-2); margin-bottom: var(--space-2); }
.chart__legend span { display: inline-flex; align-items: center; gap: var(--space-2); }
.swatch { display: inline-block; width: 22px; height: 0; border-top: 3px solid var(--accent); border-radius: 2px; }
.swatch--dash { border-top: 2px dashed var(--text-3); }
.chart__plot { position: relative; }
.chart__svg { overflow: visible; font-family: var(--font-sans); }
.chart__grid { stroke: var(--line); stroke-width: 1; }
.chart__tick { fill: var(--text-3); font-size: 12px; font-variant-numeric: tabular-nums; }
.chart__axis { fill: var(--text-2); font-size: 12px; font-weight: 500; }
.chart__baseline { stroke: var(--text-3); stroke-width: 2; stroke-dasharray: 6 6; }
.chart__area { fill: var(--accent-soft); stroke: none; }
.chart__line { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.chart__dot {
  fill: var(--surface); stroke: var(--accent); stroke-width: 2.5;
  transform-box: fill-box; transform-origin: center;
  transition: r 200ms ease;
}
.chart__dot.is-active { r: 7; fill: var(--accent); }
.chart__guide { stroke: var(--line-strong); stroke-width: 1; opacity: 0; transition: opacity 200ms ease; pointer-events: none; }
.chart__hit { fill: transparent; cursor: crosshair; }
.chart__tip {
  position: absolute;
  translate: -50% calc(-100% - 14px);
  padding: 6px 10px;
  border-radius: 10px;
  font-size: var(--fs-footnote); font-weight: 600;
  white-space: nowrap;
  color: var(--text);
  background: var(--surface);
  box-shadow: var(--shadow-md), 0 0 0 1px var(--line);
  opacity: 0; transform: translateY(4px) scale(0.96);
  transition: opacity 120ms ease, transform 220ms var(--ease-out), left 180ms var(--ease-out), top 180ms var(--ease-out);
  pointer-events: none;
}
.chart__tip.is-shown { opacity: 1; transform: none; }

/* Feature bars */
.bars__list { display: grid; gap: 6px; }
.bars__row, .bars__axis {
  display: grid;
  grid-template-columns: minmax(110px, 0.36fr) minmax(0, 1fr) 4.2em;
  align-items: center;
  gap: var(--space-3);
}
.bars__row { min-height: 30px; border-radius: 8px; }
.bars__label { font-size: var(--fs-footnote); color: var(--text-2); text-align: right; line-height: 1.25; }
.bars__track { position: relative; height: 14px; }
.bars__bar {
  position: absolute; inset: 0 auto 0 0;
  width: var(--w);
  border-radius: 0 7px 7px 0;
  background: var(--accent);
  opacity: var(--o);
  transform: scaleX(0); transform-origin: left center;
}
.bars.is-drawn .bars__bar { transform: none; transition: transform 600ms var(--ease-out) calc(var(--i) * 30ms); }
@media (prefers-reduced-motion: reduce) { .bars__bar { transform: none; } }
.bars__value { font-size: var(--fs-caption); color: var(--text-3); font-variant-numeric: tabular-nums; }
.bars__row:hover .bars__label, .bars__row:hover .bars__value { color: var(--text); }
.bars__row:hover .bars__bar { opacity: 1; }
.bars__axis { margin-top: var(--space-2); }
.bars__ticks { position: relative; height: 16px; border-top: 1px solid var(--line); }
.bars__ticks span { position: absolute; top: 4px; translate: -50% 0; font-size: 11px; color: var(--text-3); font-variant-numeric: tabular-nums; }
.chart__axis-title { text-align: center; font-size: var(--fs-caption); font-weight: 500; color: var(--text-2); margin-top: var(--space-2); }
@media (max-width: 519px) {
  .bars__row, .bars__axis { grid-template-columns: minmax(92px, 0.42fr) minmax(0, 1fr) 3.8em; gap: var(--space-2); }
}

/* Risk segments table */
.ml__table-wrap { min-width: 0; }
.segments { width: 100%; font-size: var(--fs-footnote); font-variant-numeric: tabular-nums; }
.segments th {
  text-align: left;
  padding: 10px 12px;
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-3);
  border-bottom: 1px solid var(--line-strong);
}
.segments td { padding: 10px 12px; color: var(--text-2); border-bottom: 1px solid var(--line); }
.segments .num { text-align: right; }
.segments tbody tr { transition: background-color 150ms ease; }
.segments tbody tr:hover td { color: var(--text); background: color-mix(in srgb, var(--text) 3%, transparent); }
.segments .score { color: var(--accent); font-weight: 650; }
.segments .dlq.is-mid { color: var(--risk-mid); }
.segments .dlq.is-high { color: var(--risk-high); font-weight: 650; }

/* Narrow screens: each segment becomes a compact card (no sideways scrolling) */
@media (max-width: 719px) {
  .segments thead { display: none; }
  .segments, .segments tbody { display: block; }
  .segments tr {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px 10px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
  }
  .segments td { display: flex; flex-direction: column; padding: 0; border: 0; text-align: left !important; }
  .segments td::before {
    content: attr(data-label);
    font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
    color: var(--text-3);
  }
  .segments td:nth-child(1) { grid-column: 1 / -1; color: var(--text); font-weight: 600; font-size: var(--fs-callout); }
  .segments td:nth-child(1)::before { display: none; }
}