/* CSU Lab — page-specific layout on top of /static/site.css */
.lab-page {
  max-width: 1080px;
  padding-top: 28px;
  padding-bottom: 24px;
}

.lab-intro {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.lab-intro .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.lab-intro h1 {
  font-size: clamp(1.45rem, 3vw, 1.95rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--ink);
  background: none;
  -webkit-text-fill-color: unset;
  margin: 0 0 10px;
  max-width: 40ch;
}

.lab-intro .byline {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
  max-width: 70ch;
}

.lab-intro .byline a { margin-right: 1em; }

.lab-grid {
  display: grid;
  grid-template-columns: 330px 1fr;
  gap: 28px;
  align-items: start;
}

@media (max-width: 860px) {
  .lab-grid { grid-template-columns: 1fr; }
}

.lab-page .panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 20px 24px;
}

.lab-page .tabs {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 20px;
}

.lab-page .tabs button {
  flex: 1;
  min-height: 44px;
  padding: 0.5rem 0.3rem;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  background: transparent;
  border: 0;
  cursor: pointer;
  color: var(--muted);
  border-radius: 0;
}

.lab-page .tabs button[aria-selected="true"] {
  background: var(--accent);
  color: #061014;
}

.lab-page fieldset { border: 0; }

.lab-page .ctl { margin-bottom: 18px; }

.lab-page .ctl label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--muted);
  min-height: 24px;
}

.lab-page .ctl label output {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--accent);
}

.lab-page input[type=range] {
  width: 100%;
  min-height: 44px;
  accent-color: var(--accent);
  padding: 0;
  margin: 0;
  background: transparent;
  border: 0;
}

.lab-page select {
  width: 100%;
  min-height: 44px;
  font: inherit;
  font-size: 0.86rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink);
}

.lab-page .ctl.margin-ctl input[type=range] { accent-color: #e0824a; }

.lab-page .note {
  font-size: 0.74rem;
  color: var(--muted);
  margin-top: 4px;
}

.lab-page .results h2 {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 2px;
  color: var(--ink);
}

.lab-page .results .sub {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.lab-page .decomp {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 8px;
  margin-bottom: 22px;
}

.lab-page .decomp .figno {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.lab-page .price-line {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0.35rem 0 1rem;
  flex-wrap: wrap;
}

.lab-page .price-line .p0 {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 2.1rem;
  font-weight: 500;
  color: var(--accent);
}

.lab-page .price-line .p0-label {
  font-size: 0.82rem;
  color: var(--muted);
}

.lab-page .bar {
  display: flex;
  height: 44px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.lab-page .bar .seg-q { background: var(--accent); transition: flex-grow 0.25s ease; }
.lab-page .bar .seg-m { background: #e0824a; transition: flex-grow 0.25s ease; }

.lab-page .brackets {
  display: flex;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  margin-top: 6px;
}

.lab-page .brackets div {
  padding-top: 8px;
  position: relative;
  min-width: 0;
}

.lab-page .brackets div::before {
  content: "";
  position: absolute;
  top: 0; left: 2px; right: 2px;
  height: 6px;
  border-left: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.lab-page .brackets .lab-q { color: var(--accent); }
.lab-page .brackets .lab-m { color: #e0824a; }
.lab-page .brackets span {
  display: block;
  padding: 0 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lab-page .brackets .val {
  color: var(--ink);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.lab-page .decomp .caption {
  font-size: 0.76rem;
  color: var(--muted);
  margin: 14px 0 12px;
  max-width: 70ch;
}

.lab-page .stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

@media (max-width: 560px) {
  .lab-page .stats { grid-template-columns: 1fr; }
}

.lab-page .stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.lab-page .stat .k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.lab-page .stat .v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.25rem;
  margin-top: 2px;
  color: var(--ink);
}

.lab-page .stat.ko .v { color: var(--gold); }

.lab-page .payoff {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px 10px;
}

.lab-page .payoff svg { width: 100%; height: auto; display: block; }
.lab-page .payoff .caption {
  font-size: 0.76rem;
  color: var(--muted);
  margin: 8px 0;
  max-width: 70ch;
}

.lab-page .method {
  border-top: 1px solid var(--border);
  margin-top: 34px;
  padding: 22px 0 4px;
  font-size: 0.82rem;
  color: var(--muted);
}

.lab-page .method strong { color: var(--ink); }
.lab-page .method code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: 4px;
}

.lab-page .disclaimer {
  border: 1px solid var(--border-light);
  background: var(--card);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 0.8rem;
  margin: 20px 0 8px;
  color: var(--muted);
}

.lab-page .disclaimer b {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.lab-credit {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  margin: 8px 0 24px;
  letter-spacing: 0.02em;
}

@media (prefers-reduced-motion: reduce) {
  .lab-page .bar .seg-q,
  .lab-page .bar .seg-m { transition: none; }
}