/* Layout and content styles for the generated guide pages under /guides/.
   Base tokens and element styles come from style.css; this file only adds
   the two-column shell, the sidebar, tables, and the pager. */

.guide-shell {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: 3rem;
  max-width: 66rem;
  margin: 0 auto;
  padding: 2.75rem 1.25rem 5rem;
}

.guide-nav {
  position: sticky;
  top: 2rem;
  align-self: start;
  font-size: .9rem;
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.guide-nav .brand {
  margin: 0 0 1.5rem;
  font-weight: 650;
  font-size: 1.05rem;
}
.guide-nav .brand a { color: var(--text); text-decoration: none; }
.guide-nav .brand a:hover { color: var(--accent); }

.guide-nav .nav-home { margin: 0 0 .5rem; }

.guide-nav h2 {
  font-size: .72rem;
  margin: 1.4rem 0 .4rem;
  padding-bottom: .3rem;
}

.guide-nav ul { list-style: none; margin: 0; padding: 0; }
.guide-nav li { margin: 0; }
.guide-nav li a {
  display: block;
  padding: .28rem .5rem;
  margin-left: -.5rem;
  border-radius: 4px;
  color: var(--text);
  text-decoration: none;
}
.guide-nav li a:hover { color: var(--accent); }
.guide-nav li a.current {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.guide-main { min-width: 0; }
.guide-main article h1 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
}

/* The landing page shares the shell; keep its measure comfortable. */
.guide-main.landing { max-width: 48rem; }
.landing-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.landing-header .landing-mark {
  width: 3.5rem;
  height: 3.5rem;
  flex: 0 0 auto;
}

.mobile-crumb { display: none; }

.table-wrap { overflow-x: auto; margin: 0 0 1rem; }
.guide-main table {
  border-collapse: collapse;
  width: 100%;
  font-size: .9rem;
  line-height: 1.5;
}
.guide-main th, .guide-main td {
  padding: .45rem .65rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.guide-main th {
  text-align: left;
  font-weight: 620;
  border-bottom-width: 2px;
}

.guide-main blockquote {
  margin: 0 0 1rem;
  padding: .1rem 1.1rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 4px;
}

.pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: .95rem;
}
.pager a { text-decoration: none; }
.pager a:hover { text-decoration: underline; }
.pager .pager-next { margin-left: auto; text-align: right; }

/* Copy buttons on code blocks; the script in docs.js adds them. */
.guide-main pre { position: relative; }
.copy-button {
  position: absolute;
  top: .45rem;
  right: .45rem;
  font: inherit;
  font-size: .72rem;
  padding: .15rem .55rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel);
  color: var(--muted);
  cursor: pointer;
  opacity: 0;
  transition: opacity .12s ease-in-out;
}
.guide-main pre:hover .copy-button,
.copy-button:focus-visible { opacity: 1; }
.copy-button:hover { color: var(--accent); border-color: var(--accent); }
@media (hover: none) {
  .copy-button { opacity: 1; }
}

/* PTC-Lisp highlighting — highlight.js token classes over the site palette. */
:root {
  --hl-keyword: #1f5c8a;
  --hl-string: #46703c;
  --hl-number: #7d5a1e;
  --hl-title: #8a3d1e;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --hl-keyword: #82b1d8;
    --hl-string: #a4c194;
    --hl-number: #cbb083;
    --hl-title: #e0a373;
  }
}

.guide-main .hljs-comment, .guide-main .hljs-quote { color: var(--muted); font-style: italic; }
.guide-main .hljs-string, .guide-main .hljs-regexp, .guide-main .hljs-char { color: var(--hl-string); }
.guide-main .hljs-keyword, .guide-main .hljs-built_in { color: var(--hl-keyword); }
.guide-main .hljs-symbol, .guide-main .hljs-literal { color: var(--accent); }
.guide-main .hljs-number { color: var(--hl-number); }
.guide-main .hljs-title { color: var(--hl-title); font-weight: 600; }
.guide-main .hljs-meta { color: var(--muted); }
.guide-main .hljs-name { color: var(--text); }

@media (max-width: 52rem) {
  .guide-shell {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 2rem;
  }
  .guide-nav { display: none; }
  .mobile-crumb { display: block; }
}