/* A quiet, task-led reading surface within the existing LubeWatch shell. */
#view-main #tab-manual { max-width: 1180px; margin: 0 auto; padding-bottom: 90px; color: var(--ink); }
#view-main #tab-manual [hidden] { display: none !important; }
#view-main #tab-manual button { font: inherit; cursor: pointer; }
#view-main #tab-manual :is(button,a,input,summary):focus-visible { outline: 3px solid var(--info-ink); outline-offset: 3px; }
#view-main #tab-manual .manual-heading { margin: 8px 0 24px; }
#view-main #tab-manual .manual-heading h2 { font-size: 28px; margin: 0 0 8px; }
#view-main #tab-manual .manual-heading p { color: var(--ui-muted); margin: 0; }
#view-main #tab-manual.manual-reading .manual-heading { display: none; }
#view-main #tab-manual .manual-search-area { display: flex; align-items: flex-start; gap: 16px; margin: 0 0 24px; }
#view-main #tab-manual .manual-search-area > div { flex: 1; min-width: 0; }
#view-main #tab-manual .manual-search-area label { font-size: 14px; font-weight: 600; margin: 0 0 8px; }
#view-main #tab-manual #manual-search { max-width: none; font-size: 16px; min-height: 48px; background: var(--surface); margin: 0; }
#view-main #tab-manual #manual-home { flex: none; min-height: 44px; width: auto; margin: 26px 0 0; font-size: 14px; padding: 10px 12px; background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
#view-main #tab-manual:not(.manual-reading):not(.manual-searching) #manual-home { display: none; }
#view-main #tab-manual .filter-feedback { margin: 8px 0 0; padding: 4px 8px; }
#view-main #tab-manual .filter-feedback:not(.is-active) { background: transparent; border: 0; padding: 0; justify-content: flex-end; }
#view-main #tab-manual .filter-feedback:not(.is-active) > span { display: none; }
#view-main #tab-manual .manual-welcome { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 0; border-block: 1px solid var(--line); margin: 0 0 28px; }
#view-main #tab-manual .manual-welcome h3 { margin: 0 0 4px; font-size: 20px; }
#view-main #tab-manual .manual-welcome p { margin: 0; color: var(--ui-muted); line-height: 1.7; }
#view-main #tab-manual .manual-welcome button { width: auto; flex: none; margin: 0; min-height: 44px; padding: 10px 16px; background: var(--navy-700); color: white; border: 0; border-radius: 8px; font-size: 14px; }
#view-main #tab-manual #manual-resume { font-size: 14px; margin: 0 0 24px; color: var(--ui-muted); }
#view-main #tab-manual #manual-resume button { background: none; border: 0; color: var(--info-ink); margin: 0; padding: 6px; width: auto; font-size: 14px; text-decoration: underline; text-underline-offset: 4px; }
#view-main #tab-manual #manual-quick { display: grid; grid-template-columns: 1fr 1fr; column-gap: 32px; margin: 0 0 28px; }
#view-main #tab-manual #manual-quick button { display: grid; grid-template-columns: 1fr auto; gap: 5px 12px; width: 100%; padding: 18px 0; margin: 0; background: none; color: var(--ink); border: 0; border-bottom: 1px solid var(--line); border-radius: 0; text-align: left; box-shadow: none; white-space: normal; }
#view-main #tab-manual #manual-quick strong { font-size: 17px; font-weight: 600; }
#view-main #tab-manual #manual-quick span { grid-row: 2; font-size: 13px; color: var(--ui-muted); line-height: 1.7; }
#view-main #tab-manual #manual-quick b { grid-area: 1 / 2 / 3; align-self: center; color: var(--info-ink); }
#view-main #tab-manual #manual-quick button:hover strong { color: var(--info-ink); text-decoration: underline; text-underline-offset: 4px; }
#view-main #tab-manual .manual-layout { display: grid; grid-template-columns: 245px minmax(0,1fr); gap: 32px; align-items: start; }
#view-main #tab-manual:not(.manual-reading) .manual-layout { display: block; }
#view-main #tab-manual #manual-library { min-width: 0; border: 0; background: none; }
#view-main #tab-manual #manual-library > summary { font-size: 16px; font-weight: 600; padding: 12px 0; cursor: pointer; }
#view-main #tab-manual:not(.manual-reading) #manual-toc { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
#view-main #tab-manual .manual-group { background: none; border: 0; border-top: 1px solid var(--line); border-radius: 0; margin: 0 0 16px; }
#view-main #tab-manual .manual-group > summary { color: var(--ink); font-size: 14px; padding: 14px 4px; }
#view-main #tab-manual .manual-group > summary span { color: var(--ui-muted); }
#view-main #tab-manual button.manual-topic { border: 0; padding: 10px 12px; min-height: 44px; border-radius: 6px; background: none; color: var(--ui-muted); box-shadow: none; }
#view-main #tab-manual button.manual-topic.selected { color: var(--info-ink); background: var(--info-bg); box-shadow: none; font-weight: 600; }
#view-main #tab-manual button.manual-topic:hover { background: var(--surface-alt); }
#view-main #tab-manual .manual-topic strong { font-weight: 500; line-height: 1.7; }
#view-main #tab-manual #manual-reader-tools { display: flex; align-items: center; gap: 16px; justify-content: flex-end; margin: 0 0 18px; }
#view-main #tab-manual #manual-reader-tools > p { color: var(--ui-muted); font-size: 12px; margin: 0; }
#view-main #tab-manual .manual-device-switch { margin: 0; gap: 4px; width: auto; }
#view-main #tab-manual .manual-device-switch button { min-height: 40px; padding: 8px 12px; font-size: 13px; border-radius: 6px; }
#view-main #tab-manual #manual-content { border: 0; border-radius: 0; padding: 0 0 24px; margin: 0; background: transparent; min-width: 0; width: 100%; scroll-margin-top: 84px; outline: none; }
#view-main #tab-manual #manual-content h2 { font-size: 28px; line-height: 1.45; margin: 0 0 12px; }
#view-main #tab-manual .manual-breadcrumb { display: none; }
#view-main #tab-manual .manual-lead { color: var(--ui-muted); font-size: 16px; line-height: 1.8; margin: 0 0 20px; max-width: 70ch; }
#view-main #tab-manual .manual-in-page { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 0 0 26px; }
#view-main #tab-manual .manual-in-page a { color: var(--info-ink); font-size: 13px; text-underline-offset: 5px; padding-block: 5px; }
#view-main #tab-manual #manual-content section { scroll-margin-top: 84px; }
#view-main #tab-manual #manual-content h3 { font-size: 18px; line-height: 1.6; margin: 0 0 12px; }
#view-main #tab-manual #manual-content :is(p,li) { line-height: 1.85; }
#view-main #tab-manual .manual-prepare { padding: 20px; background: var(--surface-alt); border-radius: 12px; margin-bottom: 34px; }
#view-main #tab-manual :is(.manual-prepare,.manual-result-note) ul { margin: 0; padding-left: 22px; font-size: 15px; }
#view-main #tab-manual #manual-device-note { font-size: 13px; color: var(--ui-muted); margin: 14px 0 0; padding-top: 14px; border-top: 1px solid var(--line); }
#view-main #tab-manual .manual-steps { list-style: none; margin: 0; padding: 0; }
#view-main #tab-manual .manual-step { position: relative; padding: 24px 0 30px; border-top: 1px solid var(--line); margin: 0; }
#view-main #tab-manual .manual-step.has-photo { display: grid; grid-template-columns: minmax(0,1fr) minmax(180px,270px); gap: 22px; align-items: start; }
#view-main #tab-manual .manual-step-copy { padding-left: 40px; position: relative; }
#view-main #tab-manual .manual-step-number { position: absolute; left: 0; top: 0; width: 28px; height: 28px; display: grid; place-items: center; background: var(--navy-700); color: #fff; font-size: 14px; border-radius: 50%; }
#view-main #tab-manual .manual-step h4 { margin: 0 0 8px; font-size: 17px; line-height: 1.65; font-weight: 600; }
#view-main #tab-manual .manual-step p { margin: 0; font-size: 15px; max-width: 70ch; }
#view-main #tab-manual .manual-figure { margin: 0; min-width: 0; }
#view-main #tab-manual .manual-figure button { padding: 8px; border: 1px solid var(--line); background: var(--surface); border-radius: 10px; width: 100%; margin: 0; box-shadow: none; color: var(--ink); }
#view-main #tab-manual .manual-photo-frame { display: block; position: relative; overflow: hidden; border-radius: 5px; }
#view-main #tab-manual .manual-figure img { display: block; width: 100%; max-width: none; height: auto; object-fit: contain; }
#view-main #tab-manual .manual-enlarge { font-size: 12px; margin-top: 8px; color: var(--info-ink); display: block; }
#view-main #tab-manual .manual-figure figcaption { font-size: 12px; color: var(--ui-muted); margin: 8px 0 0; line-height: 1.75; }
#view-main #tab-manual .manual-image-marker { position: absolute; pointer-events: none; border: 2px solid #aa6a13; border-radius: 3px; box-sizing: border-box; }
#view-main #tab-manual .manual-image-marker b { position: absolute; top: 0; left: 0; min-width: 16px; height: 16px; display: grid; place-items: center; color: white; background: #754907; font-size: 11px; line-height: 1; border-radius: 0 0 3px 0; }
#view-main #tab-manual .manual-photo-key { margin: 8px 0 0; padding-left: 22px; color: var(--ui-muted); font-size: 12px; }
#view-main #tab-manual .manual-result-note { padding: 22px; border-radius: 12px; background: var(--ok-bg); color: var(--ink); margin: 12px 0 32px; }
#view-main #tab-manual .manual-recovery details { border: 0; border-bottom: 1px solid var(--line); margin: 0; border-radius: 0; }
#view-main #tab-manual .manual-recovery summary { padding: 14px 0; font-size: 15px; font-weight: 600; cursor: pointer; }
#view-main #tab-manual .manual-recovery p { margin: 0 0 16px; font-size: 15px; }
#view-main #tab-manual :is(.manual-more,.manual-screens) { border: 1px solid var(--line); border-radius: 8px; background: var(--surface); margin-top: 22px; }
#view-main #tab-manual :is(.manual-more,.manual-screens) > summary { cursor: pointer; padding: 14px; font-size: 14px; }
#view-main #tab-manual .manual-body { padding: 0 16px 16px; }
#view-main #tab-manual .manual-body aside { border-left: 0; border-radius: 8px; }
#view-main #tab-manual .manual-body > p:empty { display: none; }
#view-main #tab-manual .manual-photo-note { padding: 0; color: var(--ui-muted); font-size: 12px; margin: 20px 0; }
#view-main #tab-manual .manual-article-actions { display: flex; flex-wrap: wrap; gap: 10px; }
#view-main #tab-manual .manual-article-actions button { width: auto; min-height: 44px; margin: 0; padding: 10px 14px; font-size: 14px; }
#view-main #tab-manual .manual-related { border-top: 1px solid var(--line); padding-top: 24px; margin-top: 28px; }
#view-main #tab-manual .manual-next { background: transparent; color: var(--info-ink); padding: 12px 0; margin: 0; border: 0; border-radius: 0; font-size: 15px; min-height: 44px; }
#view-main #tab-manual #manual-to-top { min-height: 44px; width: auto; margin: 16px 0 0; padding: 10px 0; font-size: 13px; color: var(--ui-muted); }
#view-main #tab-manual #manual-results { max-width: 760px; margin: 0 auto; }
#view-main #tab-manual .manual-result { display: block; text-align: left; padding: 18px 0; width: 100%; margin: 0; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: none; color: var(--ink); white-space: normal; }
#view-main #tab-manual .manual-result strong { display: block; font-size: 18px; margin-bottom: 8px; }
#view-main #tab-manual .manual-result span { display: block; font-size: 14px; color: var(--ui-muted); line-height: 1.8; }
#view-main #tab-manual .manual-result small { display: block; margin-top: 10px; color: var(--info-ink); }
#view-main #tab-manual #manual-version { border-top: 1px solid var(--line); margin: 24px 0 0; padding-top: 16px; font-size: 11px; color: var(--ui-muted); }
body.shell .manual-context-tools { display: flex; justify-content: flex-end; margin: 0 0 10px; }
body.shell .manual-context-tools button { margin: 0; padding: 6px 8px; font-size: 12px; min-height: 36px; width: auto; color: var(--info-ink); }
body.shell:has(#tab-manual:not(.hidden)) #fab-scan { display: none !important; }
@media(min-width:900px) { #view-main #tab-manual.manual-reading #manual-library { position: sticky; top: 76px; max-height: calc(100dvh - 95px); overflow-y: auto; } }
@media(max-width:899px) {
  #view-main #tab-manual { padding: 0 0 96px; }
  #view-main #tab-manual .manual-heading h2 { font-size: 24px; }
  #view-main #tab-manual .manual-search-area { display: block; margin-bottom: 18px; }
  #view-main #tab-manual #manual-home { margin: 0 0 12px; }
  #view-main #tab-manual .manual-welcome { align-items: flex-start; gap: 12px; }
  #view-main #tab-manual .manual-welcome button { font-size: 12px; padding: 10px; }
  #view-main #tab-manual #manual-quick { grid-template-columns: 1fr; }
  #view-main #tab-manual .manual-layout { display: flex; flex-direction: column; gap: 18px; }
  #view-main #tab-manual #manual-library { width: 100%; border-block: 1px solid var(--line); }
  #view-main #tab-manual #manual-library > summary { padding: 12px 0; font-size: 14px; }
  #view-main #tab-manual:not(.manual-reading) #manual-toc { grid-template-columns: 1fr; gap: 0; }
  #view-main #tab-manual #manual-toc { display: block; }
  #view-main #tab-manual #manual-reader-tools { justify-content: flex-start; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
  #view-main #tab-manual #manual-reader-tools > p { width: 100%; margin-top: 4px; }
  #view-main #tab-manual .manual-device-switch button { flex: none; }
  #view-main #tab-manual #manual-content { scroll-margin-top: 18px; }
  #view-main #tab-manual #manual-content h2 { font-size: 25px; }
  #view-main #tab-manual .manual-step.has-photo { display: block; }
  #view-main #tab-manual .manual-step .manual-figure { margin: 18px auto 0; max-width: 350px; }
  #view-main #tab-manual .manual-prepare { padding: 16px; }
  #view-main #tab-manual .manual-lead { font-size: 15px; }
  #view-main #tab-manual .manual-result-note { padding: 18px; }
}
@media(prefers-reduced-motion:reduce) { #view-main #tab-manual * { scroll-behavior: auto !important; transition: none !important; } }
/* Text-led reader controls must grow beyond the compact app button height. */
#view-main #tab-manual button { height: auto; max-height: none; }
#view-main #tab-manual #manual-quick button { min-height: 88px; }
#view-main #tab-manual .manual-choice-table { width: 100%; border-collapse: collapse; margin: 20px 0 30px; font-size: 14px; }
#view-main #tab-manual .manual-choice-table :is(th,td) { padding: 14px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); line-height: 1.8; }
#view-main #tab-manual .manual-choice-table th { background: var(--surface-alt); font-weight: 600; }
#view-main #tab-manual .manual-choice-table td:first-child { width: 35%; font-weight: 600; }