:root {
  color-scheme: light;
  --paper: #f8f5f0;
  --ink: #332f2b;
  --muted: #776f65;
  --rule: #d9d1c6;
  --red: #a3332c;
  font-family: Georgia, 'Times New Roman', serif;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; }
button, input { font: inherit; }
button { color: inherit; cursor: pointer; }
button:focus-visible, input:focus-visible { outline: 1px solid var(--muted); outline-offset: 5px; }
button { border: 0; padding: 8px 4px; background: none; }
button:hover { color: var(--red); }
button:disabled { cursor: default; opacity: .2; color: var(--muted); }
[hidden] { display: none !important; }
/* Reserve vertical space for the title, folios and reading controls.
   Small viewport units also account for mobile browser toolbars. Keep normal
   document scrolling available for expanded notes, zoom and very short windows. */
.masthead { text-align: left; width: min(1060px, 100%); margin-inline: auto; padding: clamp(18px, 4svh, 48px) 32px 0; }
h1 { margin: 0; font-size: clamp(23px, min(2.55vw, 4svh), 34px); font-weight: 400; line-height: 1.28; letter-spacing: -.025em; }
.byline { margin: clamp(8px, 1.4svh, 16px) 0 0; font-size: 14px; font-style: italic; color: var(--muted); }
main { width: min(1060px, 100%); margin: 0 auto; padding: 0 32px clamp(12px, 2svh, 24px); }
.book { display: grid; grid-template-columns: minmax(0, 1fr) 132px minmax(0, 1fr); align-items: start; margin-top: clamp(16px, 3.5svh, 44px); }
.page { min-width: 0; padding-top: clamp(4px, 1svh, 12px); position: relative; perspective: 2800px; }
.poem { width: max-content; max-width: 100%; margin: 0 auto; font-size: clamp(16px, min(1.95vw, calc((100svh - 280px) / 16)), 22px); line-height: 1.5; }
.verse { margin: 0; white-space: nowrap; }
.letter { transition: color 150ms ease; }
.letter.is-lit { color: var(--red); }
.folio { margin-top: clamp(12px, 2.4svh, 28px); padding: 0 26px; color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; letter-spacing: .025em; }
.page-right .folio { text-align: right; }
.folio button { padding: 0; font: inherit; color: inherit; }
.folio button[aria-current="page"] { color: var(--ink); }
.folio button:hover { color: var(--red); }
.turn-sheet { position: absolute; inset: 0; z-index: 3; background: var(--paper); pointer-events: none; backface-visibility: hidden; will-change: transform, opacity; }
.turn-sheet.page-left { transform-origin: right center; }
.turn-sheet.page-right { transform-origin: left center; }
.turn-underlay { z-index: 2; }
.turn-underlay.page-left .folio { text-align: left; }
.turn-underlay.page-right .folio { text-align: right; }
.page.is-under-turn > .poem, .page.is-under-turn > .folio { visibility: hidden; }
.book.is-turning .page { isolation: isolate; }
.leaves { align-self: stretch; position: relative; }
.leaves svg { position: absolute; inset: 0; display: block; width: 100%; height: calc(100% - 32px); overflow: visible; }
.leaf { fill: none; stroke: #a49a8b; stroke-width: .65; vector-effect: non-scaling-stroke; transition: opacity 900ms ease; }
.page-turns { display: flex; align-items: center; justify-content: space-between; min-height: 44px; margin: 4px 24px 0; }
.page-turns button { font-size: 26px; font-weight: 400; padding: 6px 2px; min-width: 44px; }
.center-note { color: var(--muted); font-style: italic; font-size: 13px; }
.turns-center { text-align: center; }
.page-turns #mirror { display: none; font-size: 14px; color: var(--muted); padding: 8px; }
.page-turns #mirror:hover { color: var(--red); }
.reading-tools { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 28px; margin: clamp(6px, 1.6svh, 18px) auto 0; color: var(--muted); font-size: 13px; }
.reading-tools button { min-height: 38px; }
#animation { min-width: 145px; }
#animation[aria-pressed="true"] { color: var(--red); }
.goto-panel { max-width: 420px; margin: 24px auto 0; display: grid; grid-template-columns: auto 1fr auto; align-items: baseline; gap: 10px 16px; font-size: 15px; }
.goto-panel input { min-width: 0; width: 100%; border: 0; border-bottom: 1px solid var(--rule); border-radius: 0; padding: 7px; background: transparent; color: var(--ink); font-variant-numeric: tabular-nums; }
.goto-panel .hint, .goto-panel .error { grid-column: 2 / -1; margin: 0; }
.hint { font-size: 12px; line-height: 1.65; color: var(--muted); }
.error { font-size: 13px; color: var(--red); }
.about-panel { max-width: 490px; margin: 30px auto 0; padding: 22px 0 0; border-top: 1px solid var(--rule); font-size: 15px; line-height: 1.75; }
.about-panel p { margin: 0 0 14px; }
.landmarks { display: flex; gap: 28px; font-style: italic; margin: 2px 0 14px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (min-width: 1150px) { .title-break { display: none; } }
@media (max-width: 700px) {
  main { padding-inline: 14px; }
  .masthead { padding: clamp(16px, 3svh, 32px) 24px 0; }
  .book { grid-template-columns: minmax(0, 1fr) 42px minmax(0, 1fr); margin-top: clamp(12px, 2.5svh, 26px); }
  .poem { font-size: clamp(11px, min(3.15vw, calc((100svh - 230px) / 15)), 18px); line-height: 1.5; }
  .leaves { min-height: 0; }
  .folio { padding: 0 2px; font-size: 10px; letter-spacing: 0; }
  .page-turns { margin: 4px 0 0; }
  .reading-tools { max-width: 340px; gap: 0 20px; margin-top: 6px; font-size: 12px; }
  #animation { min-width: 133px; }
  .about-panel, .goto-panel { margin-left: 10px; margin-right: 10px; }
}
@media (max-width: 700px) and (orientation: portrait) {
  main { padding-left: 22px; padding-right: 22px; }
  .book { column-gap: 8px; }
  .book[data-reading-side="left"] { grid-template-columns: minmax(0, 1fr) 28px; }
  .book[data-reading-side="right"] { grid-template-columns: 28px minmax(0, 1fr); }
  .book[data-reading-side="left"] > .page-right,
  .book[data-reading-side="right"] > .page-left { display: none; }
  .book[data-reading-side="left"] > .page-left { grid-column: 1; grid-row: 1; }
  .book[data-reading-side="right"] > .page-right { grid-column: 2; grid-row: 1; }
  .book > .leaves { grid-row: 1; }
  .book[data-reading-side="left"] > .leaves { grid-column: 2; }
  .book[data-reading-side="right"] > .leaves { grid-column: 1; }
  .poem { font-size: clamp(16px, min(4.6vw, calc((100svh - 270px) / 17)), 22px); line-height: 1.6; }
  .folio { font-size: 12px; padding: 0 8px; }
  .page-turns #mirror { display: block; }
}
@media (max-width: 700px) and (orientation: portrait) and (max-height: 650px) {
  h1 { font-size: 20px; }
  .poem { line-height: 1.5; }
  .folio { margin-top: 12px; }
}
@media (orientation: landscape) and (max-height: 500px) {
  .masthead { padding-top: 12px; }
  h1 { font-size: 20px; line-height: 1.2; }
  .title-break { display: none; }
  .byline { margin-top: 4px; font-size: 12px; }
  main { padding-bottom: 8px; }
  .book { margin-top: 10px; }
  .page { padding-top: 0; }
  .poem { font-size: clamp(12px, min(1.95vw, calc((100svh - 158px) / 14)), 18px); line-height: 1.4; }
  .folio { margin-top: 8px; font-size: 11px; }
  .page-turns { min-height: 34px; margin-top: 0; }
  .page-turns button { font-size: 22px; padding-block: 2px; }
  .reading-tools { max-width: none; margin-top: 2px; gap: 0 14px; font-size: 12px; }
  .reading-tools button { min-height: 32px; padding-block: 5px; }
}
@media (prefers-reduced-motion: reduce) { .letter, .leaf { transition: none; } }