/* h5i manual — a docs page, not a blog post.
 *
 * Three columns ruled off from each other: grouped, numbered chapters on the
 * left; the text in the middle at its measure; on the right the sections of
 * the chapter being read and the page's own facts. Both side columns are as
 * tall as the viewport and scroll on their own.
 */

.manual-wrap {
  display: grid;
  grid-template-columns: 272px minmax(0, 1fr) 248px;
  align-items: start;
  border-bottom: 1px solid var(--line2);
}

/* ── Left: chapters ──────────────────────────────────────────── */
.manual-nav,
.manual-aside {
  position: sticky; top: 60px;
  height: calc(100vh - 60px); overflow-y: auto;
  overscroll-behavior: contain; scrollbar-width: thin;
}
.manual-nav {
  display: flex; flex-direction: column;
  border-right: 1px solid var(--line2);
}
.mn-group { padding: 18px 0 14px; border-bottom: 1px solid var(--line2); }
.mn-head,
.ma-head {
  margin: 0 0 8px; padding: 0 22px;
  font-family: var(--mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: 0.24em; text-transform: uppercase; color: var(--faint);
}
.manual-nav a {
  display: flex; align-items: baseline; gap: 12px;
  padding: 6px 22px; font-size: 14px; line-height: 1.45; color: var(--dim);
  transition: color 0.15s, background-color 0.15s;
}
.manual-nav a:hover { color: var(--ink); background: var(--panel); }
.mn-n {
  flex: 0 0 auto; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.06em; color: var(--faint); transition: color 0.15s;
}
.manual-nav a.active {
  color: var(--ink); background: var(--panel2);
  box-shadow: inset 2px 0 var(--spot-solid);
}
.manual-nav a.active .mn-n { color: var(--spot); }
.mn-foot {
  margin-top: auto; padding: 14px 0; border-top: 1px solid var(--line2);
}
.mn-foot a { font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; }
.mn-foot a::after { content: ' \2197'; color: var(--faint); }

/* ── Middle: the text ────────────────────────────────────────── */
.manual-main { min-width: 0; padding: 56px clamp(28px, 4vw, 64px) 96px; }
.manual-body {
  min-width: 0; max-width: var(--measure); margin: 0 auto;
  font-size: 16px; line-height: 1.75; color: var(--text);
  overflow-wrap: break-word;
}

.manual-head { padding-bottom: 30px; margin-bottom: 34px; border-bottom: 1px solid var(--line2); }
.crumbs {
  display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 30px;
  font-family: var(--mono); font-size: 11.5px; color: var(--faint);
}
.manual-body .crumbs a { color: var(--dim); text-decoration: none; transition: color 0.15s; }
.manual-body .crumbs a:hover { color: var(--ink); }
.crumbs span { color: var(--ink); }
.crumbs i, .manual-meta i { font-style: normal; color: var(--line2); }
.manual-head h1 {
  margin: 16px 0 0; font-family: var(--disp); font-weight: 700;
  font-size: clamp(34px, 4vw, 52px); letter-spacing: -0.035em; line-height: 1;
  color: var(--ink);
}
.manual-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px;
  margin: 18px 0 0; font-family: var(--mono); font-size: 11.5px; color: var(--dim);
}
.manual-meta .ok { color: var(--green); }
.manual-meta .ok::before {
  content: ''; display: inline-block; width: 6px; height: 6px; margin-right: 8px;
  border-radius: 50%; background: currentColor; vertical-align: 1px;
}

/* the opening paragraphs are the standfirst */
.manual-head + p,
.manual-head + p + p { font-size: 18px; line-height: 1.7; color: var(--ink); }

.manual-body h2 {
  margin: 76px 0 18px; padding-top: 30px; border-top: 1px solid var(--line);
  font-family: var(--disp); font-weight: 650; font-size: 28px;
  letter-spacing: -0.025em; line-height: 1.15; color: var(--ink);
  scroll-margin-top: 84px;
}
.manual-body h2::before {
  content: attr(data-n); display: block; margin-bottom: 12px;
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  letter-spacing: 0.1em; color: var(--spot);
}
.manual-body hr + h2 { border-top: 0; padding-top: 0; margin-top: 40px; }
.manual-body h3 {
  margin: 44px 0 12px; font-family: var(--disp); font-weight: 600; font-size: 19px;
  letter-spacing: -0.01em; line-height: 1.3; color: var(--ink);
  scroll-margin-top: 84px;
}
.manual-body h4 {
  margin: 28px 0 8px; font-family: var(--mono); font-weight: 500; font-size: 11.5px;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--dim);
  scroll-margin-top: 84px;
}
.manual-body h3 code, .manual-body h2 code {
  font-size: 0.9em; background: none; border: 0; padding: 0; color: inherit;
}
.manual-body p { margin: 0 0 18px; }
.manual-body strong { color: var(--ink); font-weight: 600; }
.manual-body em { color: var(--ink); }
.manual-body ul, .manual-body ol { margin: 0 0 20px; padding-left: 22px; }
.manual-body li { margin: 7px 0; }
.manual-body ul > li::marker { color: var(--faint); }
/* numbered steps sit in square cells, the way the chapter numbers do */
.manual-body ol { list-style: none; padding-left: 0; counter-reset: step; }
.manual-body ol > li {
  position: relative; padding-left: 40px; counter-increment: step;
}
.manual-body ol > li::before {
  content: counter(step);
  position: absolute; left: 0; top: 2px; width: 24px; height: 24px;
  display: grid; place-items: center;
  border: 1px solid var(--line2); background: var(--panel);
  font-family: var(--mono); font-size: 11px; line-height: 1; color: var(--spot);
}
.manual-body a {
  color: var(--spot); text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--spot) 40%, transparent);
  text-underline-offset: 3px; transition: text-decoration-color 0.15s;
}
.manual-body a:hover { text-decoration-color: currentColor; }
.manual-body a code { color: var(--spot); }
.manual-body code {
  font-family: var(--mono); font-size: 0.86em; color: var(--ink);
  background: var(--panel); border: 1px solid var(--line2); padding: 1px 5px;
}
.manual-body hr { border: 0; border-top: 1px solid var(--line); margin: 34px 0; }

/* a quote in the manual is a note: rule, ground, and the first line set heavier */
.manual-body blockquote {
  margin: 26px 0; padding: 16px 20px;
  border-left: 2px solid var(--spot-solid); background: var(--panel);
}
.manual-body blockquote p { margin: 0 0 8px; color: var(--text); }
.manual-body blockquote p:last-child { margin-bottom: 0; }
.manual-body blockquote p:first-child { color: var(--ink); font-weight: 600; }

/* ── Code: a label strip and a copy cell over the block ──────── */
.codeblock { margin: 0 0 24px; border: 1px solid var(--line2); background: var(--panel); }
.codeblock-head {
  display: flex; align-items: stretch; justify-content: space-between;
  min-height: 34px; padding-left: 14px; border-bottom: 1px solid var(--line2);
  font-family: var(--mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--faint);
}
.codeblock-head span { align-self: center; }
.codeblock .copy-btn {
  padding: 0 14px; border: 0; border-left: 1px solid var(--line2);
  background: none; cursor: pointer; color: var(--dim);
  font: inherit; letter-spacing: 0.16em; text-transform: uppercase;
  transition: color 0.15s, background-color 0.15s;
}
.codeblock .copy-btn:hover { color: var(--ink); background: var(--panel2); }
.codeblock .copy-btn.done { color: var(--spot); }
.manual-body .codeblock pre { margin: 0; padding: 15px 18px; overflow-x: auto; }
.manual-body pre code {
  display: block; background: none; border: 0; padding: 0;
  font-size: 13px; line-height: 1.75; color: var(--text); white-space: pre;
}

.manual-body table {
  display: block; overflow-x: auto; width: 100%; margin: 0 0 24px;
  border-collapse: collapse; font-size: 14px; line-height: 1.6;
}
.manual-body th, .manual-body td {
  padding: 10px 13px; border: 1px solid var(--line);
  text-align: left; vertical-align: top; font-weight: 400;
}
.manual-body th {
  background: var(--panel); color: var(--faint); white-space: nowrap;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase;
}
.manual-body td { color: var(--text); }

/* ── Right: this chapter, and the page's facts ───────────────── */
.manual-aside { padding: 26px 0 30px; border-left: 1px solid var(--line2); }
.ma-toc { margin: 0 0 34px 22px; border-left: 1px solid var(--line2); }
.ma-sec { display: none; }
.ma-sec.current, .ma-toc:not(.live) .ma-sec:first-child { display: block; }
.ma-toc a {
  display: block; margin-left: -1px; padding: 6px 14px;
  border-left: 1px solid transparent;
  font-size: 13.5px; line-height: 1.45; color: var(--dim);
  transition: color 0.15s, border-color 0.15s;
}
.ma-toc a:first-child { color: var(--text); }
.ma-toc a:hover { color: var(--ink); }
.ma-toc a.active { color: var(--ink); border-left-color: var(--spot-solid); }
.ma-sec.current { animation: ma-in 0.35s var(--ease); }
@keyframes ma-in { from { opacity: 0; transform: translateY(4px); } }

.ma-meta { margin: 0; padding: 0 22px; }
.ma-meta div {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 7px 0; font-size: 13.5px;
}
.ma-meta dt { color: var(--dim); }
.ma-meta dd { margin: 0; color: var(--ink); text-align: right; }
.ma-meta code {
  font-family: var(--mono); font-size: 12px; color: var(--ink);
  background: var(--panel); border: 1px solid var(--line2); padding: 1px 5px;
}
.ma-meta a { color: var(--spot); }
.ma-meta a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ── Narrow ──────────────────────────────────────────────────── */
.manual-mobile-toc { display: none; }
@media (max-width: 1180px) {
  .manual-wrap { grid-template-columns: 248px minmax(0, 1fr); }
  .manual-aside { display: none; }
}
@media (max-width: 860px) {
  .manual-wrap { grid-template-columns: minmax(0, 1fr); }
  .manual-nav { display: none; }
  .manual-main { padding: 36px var(--gut) 72px; }
  .manual-mobile-toc {
    display: block; margin-top: 24px; border: 1px solid var(--line2);
  }
  .manual-mobile-toc summary {
    padding: 11px 14px; cursor: pointer; list-style: none;
    font-family: var(--mono); font-size: 11px; font-weight: 500;
    letter-spacing: 0.2em; text-transform: uppercase; color: var(--dim);
  }
  .manual-mobile-toc summary::-webkit-details-marker { display: none; }
  .manual-mobile-toc summary::after { content: ' +'; color: var(--spot); }
  .manual-mobile-toc[open] summary::after { content: ' \2212'; }
  .manual-mobile-toc .mn-group { border-bottom: 0; border-top: 1px solid var(--line2); }
  .manual-mobile-toc a {
    display: flex; gap: 12px; padding: 6px 22px; font-size: 14px; color: var(--dim);
  }
  .manual-body h2 { font-size: 24px; margin-top: 56px; }
  .manual-head + p, .manual-head + p + p { font-size: 17px; }
  .manual-meta i { display: none; }
  .manual-body code { white-space: normal; overflow-wrap: anywhere; }
  .manual-body pre code { white-space: pre; overflow-wrap: normal; }
}