.manual-page { background: var(--bg); }
.manual-main { border-bottom: 1px solid var(--line); }
.manual-doc { width: 100%; }
.manual-hero { padding: clamp(58px, 8vw, 108px) var(--side) clamp(48px, 7vw, 84px); border-bottom: 1px solid var(--line); }
.manual-eyebrow { margin: 0 0 22px; color: var(--brown); font: 800 10px/1 var(--font-mono); letter-spacing: .1em; }
.manual-hero__grid { display: grid; grid-template-columns: minmax(0,1.45fr) minmax(250px,.55fr); gap: clamp(36px, 7vw, 100px); align-items: end; }
.manual-hero h1 { margin: 0; font-size: clamp(48px, 7vw, 92px); line-height: .94; letter-spacing: -.06em; }
.manual-hero__grid > div:first-child > p { max-width: 800px; margin: 26px 0 0; color: var(--muted); font-size: 15px; line-height: 1.85; }
.manual-hero__meta { display: grid; border-top: 1px solid var(--line); }
.manual-hero__meta > span,
.manual-hero__meta > a { min-height: 48px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); color: var(--muted); font: 700 10px/1.4 var(--font-mono); }
.manual-hero__meta > a { color: var(--text); }
.manual-hero__meta > a:hover { color: var(--brown); }
.manual-hero__meta b { color: var(--brown); }
.manual-tools { padding: 22px var(--side); display: grid; grid-template-columns: minmax(280px,.7fr) minmax(0,1.3fr); gap: 32px; align-items: end; border-bottom: 1px solid var(--line); background: var(--surface); }
.manual-tools label { display: grid; gap: 9px; color: var(--muted-2); font: 700 9px/1 var(--font-mono); letter-spacing: .08em; }
.manual-tools input { width: 100%; min-height: 46px; padding: 0 14px; border: 1px solid var(--line); border-radius: 0; background: var(--bg); color: var(--text); font: 500 13px/1.4 var(--font-sans); outline: none; }
.manual-tools input:focus { border-color: var(--brown); }
.manual-tools p { margin: 0; color: var(--muted-2); font-size: 11px; line-height: 1.75; }
.manual-layout { display: grid; grid-template-columns: minmax(220px, 300px) minmax(0,1fr); align-items: start; }
.manual-toc { position: sticky; top: var(--header-h); max-height: calc(100svh - var(--header-h)); overflow: auto; padding: 30px 20px 34px var(--side); border-right: 1px solid var(--line); }
.manual-toc > strong { display: block; margin-bottom: 14px; color: var(--muted-2); font: 800 9px/1 var(--font-mono); letter-spacing: .1em; }
.manual-toc nav { display: grid; }
.manual-toc a { min-height: 40px; display: grid; grid-template-columns: 28px minmax(0,1fr) auto; gap: 8px; align-items: center; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; line-height: 1.35; }
.manual-toc a:last-child { border-bottom: 1px solid var(--line); }
.manual-toc a:hover { color: var(--text); }
.manual-toc a > span { color: var(--brown); font: 700 9px/1 var(--font-mono); }
.manual-toc em,
.manual-title-line em { padding: 4px 5px; border: 1px solid var(--brown); color: var(--brown); font: 800 8px/1 var(--font-mono); letter-spacing: .05em; font-style: normal; }
.manual-content { min-width: 0; }
.manual-section { scroll-margin-top: calc(var(--header-h) + 22px); padding: clamp(48px, 6vw, 78px) clamp(28px, 6vw, 84px); border-bottom: 1px solid var(--line); }
.manual-section--priority { background: color-mix(in srgb, var(--brown) 5%, var(--bg)); }
.manual-section__head { display: grid; grid-template-columns: 44px minmax(0,1fr); gap: 20px; }
.manual-section__head > span { padding-top: 7px; color: var(--brown); font: 800 10px/1 var(--font-mono); }
.manual-title-line { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.manual-section h2 { margin: 0; font-size: clamp(30px, 4vw, 52px); line-height: 1.02; letter-spacing: -.045em; }
.manual-section__head p { max-width: 880px; margin: 16px 0 0; color: var(--muted); font-size: 14px; line-height: 1.85; }
.manual-section__body { margin: 32px 0 0 64px; display: grid; gap: 14px; max-width: 940px; }
.manual-block { border: 1px solid var(--line); background: var(--surface); }
.manual-block h3 { margin: 0; padding: 13px 16px; border-bottom: 1px solid var(--line); color: var(--muted-2); font: 800 9px/1 var(--font-mono); letter-spacing: .08em; }
.manual-block ol,
.manual-block ul { margin: 0; padding: 4px 18px 4px 44px; }
.manual-block li { padding: 12px 4px; color: var(--muted); font-size: 13px; line-height: 1.75; border-bottom: 1px solid var(--line); }
.manual-block li:last-child { border-bottom: 0; }
.manual-block li::marker { color: var(--brown); font: 700 10px/1 var(--font-mono); }
.manual-block--code pre { margin: 0; padding: 18px; overflow: auto; color: var(--text); background: #12110f; font: 650 12px/1.9 var(--font-mono); }
html[data-theme="light"] .manual-block--code pre { background: #ece8e2; }
.manual-callout { display: grid; grid-template-columns: 88px minmax(0,1fr); gap: 16px; padding: 16px; border: 1px solid var(--line); background: transparent; }
.manual-callout strong { color: var(--brown); font: 800 9px/1.4 var(--font-mono); letter-spacing: .06em; }
.manual-callout p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; }
.manual-callout--warning { border-left: 3px solid #b2533f; }
.manual-callout--tip { border-left: 3px solid var(--green); }
.manual-callout--note { border-left: 3px solid var(--brown); }
.manual-empty { margin: 0; padding: 80px var(--side); color: var(--muted); }
.manual-section[hidden], .manual-toc a[hidden] { display: none !important; }

@media (prefers-reduced-motion: no-preference) {
  .manual-page [data-reveal] { opacity: 0; transform: translateY(10px); transition: opacity .35s ease, transform .35s ease; }
  .manual-page [data-reveal].is-visible { opacity: 1; transform: none; }
}

@media (max-width: 900px) {
  .manual-hero__grid { grid-template-columns: 1fr; }
  .manual-tools { grid-template-columns: 1fr; }
  .manual-layout { grid-template-columns: 1fr; }
  .manual-toc { position: relative; top: auto; max-height: none; padding: 22px var(--side); border-right: 0; border-bottom: 1px solid var(--line); }
  .manual-toc nav { grid-template-columns: 1fr 1fr; column-gap: 20px; }
}

@media (max-width: 680px) {
  .manual-header { grid-template-columns: 1fr auto; }
  .manual-header .project-back { display: none; }
  .manual-hero { padding: 42px 18px 34px; }
  .manual-hero h1 { font-size: clamp(42px, 13vw, 58px); }
  .manual-hero__grid > div:first-child > p { font-size: 14px; }
  .manual-tools { padding: 18px; gap: 16px; }
  .manual-toc { padding: 18px; }
  .manual-toc nav { grid-template-columns: 1fr; }
  .manual-section { padding: 42px 18px; }
  .manual-section__head { grid-template-columns: 30px minmax(0,1fr); gap: 10px; }
  .manual-section h2 { font-size: 30px; }
  .manual-section__body { margin: 26px 0 0 40px; }
  .manual-callout { grid-template-columns: 1fr; gap: 8px; }
  .manual-block ol, .manual-block ul { padding-left: 34px; }
}

@media (max-width: 420px) {
  .manual-section__head { grid-template-columns: 1fr; }
  .manual-section__head > span { padding-top: 0; }
  .manual-section__body { margin-left: 0; }
}