:root { color-scheme: light; --paper: #f2eee5; --ink: #17150f; --muted: #55504a; --accent: #a3311f; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: system-ui, sans-serif; }
a { color: inherit; }
.heading { display: flex; align-items: center; gap: 32px; max-width: 1120px; margin: auto; padding: 24px; }
.brand { font: 600 25px Georgia, serif; letter-spacing: .22em; text-decoration: none; }
.title h1 { font: 500 25px/1.2 Georgia, serif; margin: 0 0 7px; }
.title p { margin: 0; font-size: 12px; line-height: 1.5; color: var(--muted); }
.toolbar { display: flex; justify-content: center; align-items: center; gap: 32px; padding: 12px 20px; border-block: 1px solid #d5cdbf; background: #f9f6ef; position: sticky; top: 0; z-index: 10; flex-wrap: wrap; }
.pagination, .zoom { display: flex; align-items: center; gap: 9px; font-size: 13px; }
button, select, input { font: inherit; color: var(--ink); border: 1px solid #b4aa9a; border-radius: 6px; background: #fffdf8; min-height: 44px; }
button { min-width: 44px; cursor: pointer; font-size: 20px; padding: 6px 12px; }
select { padding: 6px 10px; max-width: 190px; }
input { width: 62px; padding: 6px 8px; text-align: center; }
button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
button:disabled, select:disabled, input:disabled { opacity: .45; cursor: default; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.status { font-size: 12px; color: var(--muted); text-align: center; margin: 14px 12px; min-height: 18px; }
main { overflow: auto; padding: 0 24px 40px; scroll-margin-top: 100px; }
#sheet { position: relative; margin: 0 auto; background: white; box-shadow: 0 4px 22px #392c181c; }
#sheet canvas { display: block; width: 100%; height: 100%; }
#sheet .textLayer { inset: 0; overflow: clip; }
.error { max-width: 600px; margin: 24px auto; padding: 0 20px; text-align: center; line-height: 1.6; }
.error button { font-size: 14px; }
[hidden] { display: none !important; }
.skip { position: fixed; top: -70px; left: 16px; z-index: 30; padding: 12px; background: white; }
.skip:focus { top: 10px; }
@media (max-width: 600px) {
  .heading { gap: 16px; padding: 18px 14px; align-items: flex-start; }
  .brand { font-size: 19px; margin-top: 3px; }
  .title h1 { font-size: 20px; }
  .title p { font-size: 11px; }
  .toolbar { gap: 10px 20px; padding: 10px 12px; }
  main { padding: 0 8px 28px; }
  .status { margin: 10px 8px; }
}