/* Methods catalogue page. Layered on top of styles.css. */

.methods-page {
  --code-bg: #1d1a17;
  --code-ink: #efe8da;
  --code-muted: #9c9385;
  --eq-bg: #fffdf8;
}

.site-nav a[aria-current="page"] {
  color: var(--red);
  border-bottom: 2px solid var(--red);
  padding-bottom: 2px;
}

/* Hero band */
.methods-hero {
  max-width: 1440px;
  margin: 0 auto;
  padding: 64px 32px 36px;
  border-bottom: 1px solid var(--line);
}

.methods-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2.6rem, 5vw, 4.4rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1;
}

.methods-lede {
  max-width: 62ch;
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--ink-2);
}

/* Layout */
.methods-layout {
  max-width: 1440px;
  margin: 0 auto;
  padding: 40px 32px 96px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.methods-toc {
  position: sticky;
  top: 92px;
  max-height: calc(100vh - 110px);
  overflow: auto;
  padding-right: 8px;
  font-family: var(--sans);
}

.toc-title {
  margin: 0 0 12px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.methods-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.methods-toc li a {
  display: block;
  padding: 6px 0 6px 14px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.82rem;
  line-height: 1.35;
}

.methods-toc li.lvl3 a {
  padding-left: 28px;
  font-size: 0.76rem;
  color: var(--muted);
}

.methods-toc li a:hover {
  color: var(--ink);
}

.methods-toc li a.current {
  color: var(--red);
  border-left-color: var(--red);
}

.toc-source {
  display: inline-block;
  margin-top: 18px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Prose */
.methods-main {
  max-width: 78ch;
  font-size: 1.16rem;
  line-height: 1.6;
}

.methods-main section {
  padding: 8px 0 40px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.methods-main section:last-of-type {
  border-bottom: 0;
}

.methods-main h2 {
  margin: 0 0 20px;
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.005em;
}

.methods-main h3 {
  margin: 40px 0 12px;
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.2;
}

.methods-main p {
  margin: 0 0 16px;
}

.methods-main p.entry {
  margin-top: 28px;
}

.methods-main .label {
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--red-deep);
  margin-right: 4px;
}

.methods-main em {
  font-style: italic;
}

.methods-main ul {
  margin: 0 0 18px;
  padding-left: 22px;
}

.methods-main li {
  margin-bottom: 8px;
}

.methods-main code {
  font-family: "JetBrains Mono", var(--mono);
  font-size: 0.82em;
  background: var(--paper-2);
  padding: 1px 6px;
  border-radius: 3px;
}

/* Equations: typeset above, code below, as a single plate */
.equation {
  margin: 18px 0 0;
  padding: 18px 22px 12px;
  background: var(--eq-bg);
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: 4px 4px 0 0;
  overflow-x: auto;
  font-size: 1.05em;
}

.equation + .equation {
  margin-top: 0;
  border-top: 0;
  border-radius: 0;
  padding-top: 0;
}

.equation + pre.code,
.equation + .equation + pre.code {
  margin-top: 0;
  border-radius: 0 0 4px 4px;
}

/* an equation with no code plate below still gets a bottom edge */
.equation:not(:has(+ pre.code)):not(:has(+ .equation)) {
  border-bottom: 1px solid var(--line);
  border-radius: 4px;
  margin-bottom: 18px;
}

.equation mjx-container[display="true"] {
  margin: 6px 0 !important;
}

pre.code {
  position: relative;
  margin: 18px 0 20px;
  padding: 18px 22px;
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 4px;
  overflow-x: auto;
  font-family: "JetBrains Mono", var(--mono);
  font-size: 0.8rem;
  line-height: 1.55;
  tab-size: 2;
  font-variant-ligatures: none;
}

pre.code code {
  font: inherit;
  background: none;
  padding: 0;
  color: inherit;
}

pre.code::before {
  content: attr(data-lang);
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--code-muted);
}

pre.code[data-lang="text"]::before {
  content: "rule";
}

/* Tables */
.table-wrap {
  margin: 18px 0 22px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--frame);
}

.methods-main table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.methods-main th,
.methods-main td {
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.methods-main th {
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--paper-2);
}

.methods-main tbody tr:last-child td {
  border-bottom: 0;
}

.methods-main th.num,
.methods-main td.num {
  text-align: right;
  font-family: "JetBrains Mono", var(--mono);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.methods-main tbody tr:hover td {
  background: rgba(184, 150, 74, 0.06);
}

/* Footer code */
.site-footer code {
  font-family: "JetBrains Mono", var(--mono);
  font-size: 0.85em;
}

@media (max-width: 960px) {
  .methods-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px 20px 72px;
  }

  .methods-toc {
    position: static;
    max-height: none;
  }

  .methods-toc ol {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    border-left: 0;
    gap: 0 16px;
  }

  .methods-toc li.lvl3 {
    display: none;
  }

  .methods-hero {
    padding: 40px 20px 24px;
  }

  .methods-main {
    font-size: 1.08rem;
  }
}