.model { display: flex; flex-direction: column; gap: 26px; padding-top: 6px; }
.intro { font-size: .95rem; line-height: 1.5; }
.block { display: flex; flex-direction: column; gap: 12px; }
.block-title { font-size: 1.1rem; font-weight: 700; }
.sub-title { font-size: .8rem; font-weight: 600; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .04em; margin-top: 6px; }
.small { font-size: .82rem; }
.note { font-size: .82rem; color: var(--ink-soft); background: var(--bg-tint); border-radius: 12px; padding: 10px 14px; transition: background var(--t-morph); }

/* ── KPI strip ── */
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.kpi {
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px;
  padding: 14px 12px; text-align: center;
}
.kpi b { display: block; font-size: 1.4rem; font-weight: 800; color: var(--accent); transition: color var(--t-morph); line-height: 1; }
.kpi span { font-size: .72rem; color: var(--ink-soft); }

/* ── Pipeline ── */
.pipeline { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; }
.pipe-step {
  flex: 0 0 auto; min-width: 132px; background: var(--surface);
  border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px;
  position: relative;
}
.pipe-step b { font-size: .9rem; }
.pipe-step span { display: block; font-size: .72rem; color: var(--ink-soft); margin-top: 2px; }
.pipe-step:not(:last-child)::after {
  content: '→'; position: absolute; right: -10px; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-weight: 700; z-index: 1; transition: color var(--t-morph);
}

/* ── Dataset ── */
.dataset { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.donut-wrap { display: flex; align-items: center; gap: 14px; }
.donut { width: 96px; height: 96px; border-radius: 50%; }
.donut::after {
  content: ''; display: block; width: 54px; height: 54px; margin: 21px;
  background: var(--surface); border-radius: 50%;
}
.donut-legend { display: flex; flex-direction: column; gap: 8px; font-size: .82rem; }
.donut-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; }
.ds-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; flex: 1; min-width: 180px; }
.ds-facts div { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; }
.ds-facts b { display: block; font-size: 1.1rem; }
.ds-facts span { font-size: .72rem; color: var(--ink-soft); }

/* ── Chips ── */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }

/* ── Spec tables ── */
.spec { width: 100%; border-collapse: collapse; font-size: .86rem; }
.spec tr { border-bottom: 1px solid var(--line); }
.spec td { padding: 10px 4px; vertical-align: top; }
.spec td:first-child { color: var(--ink-soft); width: 42%; }
.spec td:last-child { font-weight: 500; text-align: right; }

/* ── Train compare ── */
.train-compare { display: flex; gap: 12px; }
.tc { flex: 1; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px; text-align: center; }
.tc b { display: block; font-size: 1.5rem; font-weight: 800; }
.tc.final b { color: var(--accent); transition: color var(--t-morph); }
.tc span { font-size: .72rem; color: var(--ink-soft); }

/* ── F1 bars ── */
.bars { display: flex; flex-direction: column; gap: 7px; }
.bar-row { display: grid; grid-template-columns: 130px 1fr 42px; align-items: center; gap: 10px; }
.bar-row .name { font-size: .8rem; text-transform: capitalize; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-track { height: 9px; background: var(--bg-tint); border-radius: 99px; overflow: hidden; transition: background var(--t-morph); }
.bar-fill { height: 100%; border-radius: 99px; width: 0; transition: width .9s cubic-bezier(.4,0,.2,1); }
.bar-fill.good { background: var(--grad-accent); }
.bar-fill.mid  { background: linear-gradient(135deg, #f0b429, #e0a22b); }
.bar-fill.bad  { background: linear-gradient(135deg, #e9573f, #d9534f); }
.bar-row .val { font-size: .78rem; font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.all-classes summary { cursor: pointer; font-size: .85rem; font-weight: 600; color: var(--accent); padding: 8px 0; }
.all-classes .bars { margin-top: 8px; }

/* ── Confusion matrix ── */
.cm-scroll { overflow: auto; border: 1px solid var(--line); border-radius: 14px; max-height: 60vh; }
.cm-img { display: block; width: 100%; min-width: 560px; }

/* ── Limitations ── */
.limits { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.limits li { display: flex; gap: 10px; font-size: .86rem; line-height: 1.4; }
.limits li::before { content: '!'; flex: 0 0 20px; height: 20px; border-radius: 50%; background: var(--bg-tint); color: var(--accent); font-weight: 700; font-size: .75rem; display: grid; place-items: center; transition: background var(--t-morph), color var(--t-morph); }

/* Desktop content already widened by the shell; let dataset breathe. */
@media (min-width: 1024px) {
  .kpis { grid-template-columns: repeat(6, 1fr); }
}