/* ============================================================================
   Study detail pages

   Extends the lab's stylesheet rather than replacing it — same true black,
   same two semantic colours, same monospace. A study page is longer-form
   than the index, so this file mostly buys back reading comfort: a narrower
   measure, more air between blocks, and prose set in the sans face while
   headings and data stay mono.
   ========================================================================= */

.study { padding-block: clamp(28px, 5vw, 52px) clamp(56px, 8vw, 96px); }

.study .shell { max-width: 54rem; }

/* breadcrumb ------------------------------------------------------------- */
.crumb {
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: clamp(24px, 4vw, 40px);
}
.crumb a { color: var(--ink-2); text-decoration: none; transition: color 0.2s var(--ease); }
.crumb a:hover { color: var(--crossed); }
.crumb span { color: var(--ink-3); margin-inline: 0.4rem; }
.crumb span:last-child { color: var(--ink-3); margin-inline: 0; }

/* head ------------------------------------------------------------------- */
.study-head {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding-bottom: clamp(28px, 4vw, 44px);
  border-bottom: 1px solid var(--line-2);
}

.study-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.study-head h1 {
  font-size: clamp(1.7rem, 4.2vw, 2.75rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
  margin: 0;
}
.study-head h1 .x { color: var(--crossed); }

.study-lede {
  font-family: var(--sans);
  font-size: clamp(1rem, 1.8vw, 1.13rem);
  line-height: 1.68;
  color: var(--ink-2);
  margin: 0;
  max-width: 54ch;
}
.study-lede code { font-family: var(--mono); font-size: 0.88em; color: var(--ink); }

.factbar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  gap: 1px;
  background: var(--line-2);
  border: 1px solid var(--line-2);
  margin: 0.5rem 0 0;
}
.factbar > div { background: var(--ground); padding: 0.65rem 0.85rem; display: flex; flex-direction: column; gap: 0.15rem; }
.factbar dt { font-size: 0.55rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--ink-3); margin: 0; }
.factbar dd { margin: 0; font-size: 0.82rem; color: var(--ink); }

.repo { color: var(--ink); }
.priv {
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px solid var(--line-2);
  padding: 0.1rem 0.35rem;
  margin-left: 0.35rem;
}

/* blocks ----------------------------------------------------------------- */
.block {
  padding-block: clamp(28px, 4.5vw, 46px);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.block h2 {
  margin: 0;
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--crossed);
  font-weight: 400;
}

.block p {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.97rem;
  line-height: 1.72;
  color: var(--ink-2);
  max-width: 66ch;
}

.block p strong { color: var(--ink); font-weight: 500; }
.block code { font-family: var(--mono); font-size: 0.87em; color: var(--ink); }
.block .held { color: var(--held); }
.block .x { color: var(--crossed); }

blockquote {
  margin: 0;
  border-left: 1px solid var(--crossed-dim);
  padding-left: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
blockquote p { color: var(--ink-3); font-style: italic; max-width: 62ch; }

.warn-block { background: linear-gradient(0deg, var(--crossed-glow), transparent); padding-inline: clamp(14px, 2.5vw, 22px); }

pre .pr { color: var(--crossed); }
pre .ok { color: var(--held); }

.limits { margin: 0; padding-left: 1.1rem; display: flex; flex-direction: column; gap: 0.6rem; }
.limits li { font-family: var(--sans); font-size: 0.94rem; line-height: 1.66; color: var(--ink-2); max-width: 66ch; }
.limits strong { color: var(--ink); font-weight: 500; }

.corrections { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.9rem; }
.corrections li { display: grid; grid-template-columns: 1.6rem minmax(0, 1fr); gap: 0.9rem; align-items: start; }
.corrections .cn { font-size: 0.7rem; color: var(--crossed); padding-top: 0.15rem; }
.corrections div { font-family: var(--sans); font-size: 0.94rem; line-height: 1.68; color: var(--ink-2); max-width: 64ch; }
.corrections strong { color: var(--ink); font-weight: 500; display: block; }

.study-foot { padding-top: clamp(28px, 4vw, 44px); }

/* keep wide tables and code scrolling inside their own box */
.study .tbl, .study pre { max-width: 100%; }
.block > * { min-width: 0; }