/* A single page of instructions: the picture and the selected line move together. */
body[data-page="guide"] .guide-reader { margin: 32px 0 48px; padding: 0; border: 0; }
body[data-page="guide"] .guide-reader-title { font-size: 20px; line-height: 1.6; font-weight: 500; margin: 0 0 20px; }
.guide-reader [hidden] { display: none !important; }
.guide-reader button { font: inherit; color: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.guide-reader-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; font-size: 14px; }
.guide-reader-count { color: var(--muted); font-variant-numeric: tabular-nums; white-space: pre; }
.guide-reader-mode { padding: 10px 0 10px 16px; border: 0; background: none; text-decoration: underline; text-underline-offset: 5px; text-decoration-color: var(--line); }
.guide-reader-mode:hover { text-decoration-color: currentColor; }
.guide-reader-progress { height: 1px; margin: 8px 0 32px; background: var(--line); }
.guide-reader-progress > span { display: block; height: 100%; background: var(--ink); transition: width 240ms ease; }
.guide-reader-layout { display: grid; grid-template-columns: minmax(200px, .95fr) minmax(220px, 1fr); gap: clamp(28px, 4vw, 64px); align-items: center; }
.guide-reader-stage { display: flex; flex-direction: column; align-items: center; min-width: 0; width: min(100%, 270px); aspect-ratio: var(--reader-ratio); padding-bottom: 38px; box-sizing: content-box; justify-self: center; touch-action: pan-y pinch-zoom; }
.guide-reader-screen { display: block; position: relative; width: min(100%, 270px); flex-shrink: 0; overflow: hidden; border: 1px solid #2e3e3b18; border-radius: 22px; padding: 0; background: transparent; box-shadow: 0 18px 32px -24px #183c3240; }
.guide-reader-screen img { position: absolute; top: 0; left: 0; display: block; width: 100%; height: auto; }
.guide-reader-highlights { position: absolute; inset: 0; pointer-events: none; }
.guide-reader-mark { position: absolute; border: 2px solid #ad583d; border-radius: 6px; box-shadow: 0 0 0 2px #fff9; animation: guide-mark-in 380ms ease-out; }
.guide-reader-zoom { display: block; color: var(--muted); font-size: 13px; margin-top: 16px; }
.guide-reader-notes { min-width: 0; }
body[data-page="guide"] .guide-reader-list { position: relative; list-style: none; margin: 0; padding: 0; max-height: 500px; overflow-y: auto; scrollbar-width: thin; scroll-padding: 8px; }
body[data-page="guide"] .guide-reader-list > li { margin: 0; padding: 0; border-bottom: 1px solid var(--line); }
.guide-reader-select { display: flex; width: 100%; text-align: left; gap: 16px; align-items: baseline; background: none; border: 0; padding: 18px 4px; line-height: 1.6; font-size: 16px; opacity: .6; transition: opacity 180ms; }
.guide-reader-select:hover, .is-current .guide-reader-select { opacity: 1; }
.is-current .guide-reader-select { font-weight: 600; padding-bottom: 8px; }
.guide-reader-number { flex: 0 0 26px; font-size: 15px; font-weight: 400; font-variant-numeric: tabular-nums; }
body[data-page="guide"] .guide-reader-caption { font-size: 16px; line-height: 1.85; color: var(--muted); padding: 0 4px 20px 46px; margin: 0; animation: guide-note-in 220ms ease-out; }
.guide-reader-controls { display: flex; justify-content: space-between; gap: 16px; margin-top: 28px; }
.guide-reader-controls button { min-height: 44px; border: 0; border-bottom: 1px solid var(--line); background: none; padding: 8px 0; font-size: 15px; }
.guide-reader-controls button:hover:not(:disabled) { border-bottom-color: var(--ink); }
.guide-reader-controls button:disabled { opacity: .28; cursor: default; }
.guide-reader :focus-visible, .guide-reader-continuation a:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.guide-reader-live { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.guide-reader-original:not(.guide-reader-show-original) { display: none; }
body[data-page="guide"] .guide-reader-continuation { margin: 56px 0 0; padding-top: 24px; border-top: 1px solid var(--line); }
.guide-reader-continuation a { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; text-decoration: none; }
.guide-reader-continuation span { font-size: 14px; color: var(--muted); }
.guide-reader-continuation strong { font-size: 18px; font-weight: 500; }
.guide-reader-dialog { background: var(--paper); color: var(--ink); border: 1px solid var(--line); border-radius: 12px; padding: 20px; max-width: min(560px, calc(100vw - 32px)); max-height: calc(100svh - 32px); overflow: auto; }
.guide-reader-dialog::backdrop { background: #152b2bd9; }
.guide-reader-dialog-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; position: sticky; top: -20px; background: var(--paper); padding: 12px 0 20px; z-index: 1; }
.guide-reader-dialog h2 { font-size: 18px; margin: 0; }
.guide-reader-close { font: inherit; color: inherit; background: none; border: 0; min-height: 44px; cursor: pointer; white-space: nowrap; }
.guide-reader-enlarged { position: relative; width: min(440px, calc(100vw - 74px)); overflow: hidden; border-radius: 14px; }
.guide-reader-enlarged > img { position: absolute; top: 0; left: 0; display: block; width: 100%; height: auto; }
@keyframes guide-note-in { from { opacity: .35; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@keyframes guide-mark-in { from { opacity: 0; } to { opacity: 1; } }
@media (max-width: 1100px) and (min-width: 901px) {
  .guide-reader-layout { grid-template-columns: minmax(170px, .85fr) minmax(190px, 1fr); gap: 24px; }
}
@media (max-width: 600px) {
  body[data-page="guide"] .guide-reader { margin-top: 24px; }
  .guide-reader-layout { display: flex; flex-direction: column-reverse; gap: 24px; }
  .guide-reader-notes { width: 100%; }
  body[data-page="guide"] .guide-reader-list { display: flex; gap: 0; overflow: visible; max-height: none; flex-wrap: wrap; }
  body[data-page="guide"] .guide-reader-list > li { display: contents; }
  .guide-reader-select { order: 0; flex: 0 0 auto; width: 44px; height: 44px; padding: 0; justify-content: center; align-items: center; border-bottom: 1px solid var(--line); }
  .guide-reader-select > span:last-child { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .guide-reader-number { flex-basis: auto; }
  .is-current .guide-reader-select { padding: 0; border-bottom: 2px solid var(--ink); }
  body[data-page="guide"] .guide-reader-caption { order: 1; width: 100%; padding: 18px 0 0; min-height: 110px; }
  .guide-reader-caption::before { content: attr(data-title); display: block; color: var(--ink); font-weight: 600; line-height: 1.6; margin-bottom: 8px; }
  .guide-reader-controls { margin-top: 8px; }
  .guide-reader-progress { margin-bottom: 16px; }
  .guide-reader-stage { width: min(250px, calc(min(480px, 100svh - 340px) * var(--reader-ratio))); }
  .guide-reader-screen { width: 100%; }
  .guide-reader-zoom { margin-top: 12px; }
  .guide-reader-continuation strong { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .guide-reader *, .guide-reader *::before, .guide-reader-dialog * { animation: none !important; transition: none !important; }
}
@media print {
  .guide-reader, .guide-reader-continuation { display: none !important; }
  .guide-reader-original { display: block !important; }
}