
html, body { height: 100%; margin: 0; overflow: hidden; }
body {
  background: radial-gradient(ellipse at 50% 38%, #45403a 0%, #2e2a26 55%, #1d1a17 100%);
  overscroll-behavior: none;
  -webkit-user-select: none; user-select: none;
}
#stage {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  touch-action: none;
}
#flipbook { position: relative; }
#flipbook.open { box-shadow: 0 22px 60px rgba(0,0,0,.55), 0 4px 14px rgba(0,0,0,.4); }

/* ---------- hard covers ---------- */
.cover {
  background:
    radial-gradient(ellipse at 30% 25%, rgba(255,255,255,.09), rgba(255,255,255,0) 55%),
    linear-gradient(135deg, #142e56 0%, #24487f 46%, #142e56 100%);
  box-shadow: inset 0 0 40px rgba(0,0,0,.35);
}
.cover-front::before, .cover-back::before {
  content: ''; position: absolute; top: 0; bottom: 0; width: 12%;
  pointer-events: none; z-index: 2;
}
.cover-front::before { left: 0;  background: linear-gradient(to right, rgba(0,0,0,.5), rgba(0,0,0,.14) 55%, rgba(0,0,0,0)); }
.cover-back::before  { right: 0; background: linear-gradient(to left,  rgba(0,0,0,.5), rgba(0,0,0,.14) 55%, rgba(0,0,0,0)); }
.cover-inner { position: absolute; inset: 0; }
.cover-frame {
  position: absolute; inset: 7%;
  border: 3px double #c9a84c; border-radius: 3px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: #e7c96f;
  font-family: Georgia, 'Palatino Linotype', serif;
  padding: 0 6%;
}
.cover-title {
  font-variant: small-caps; letter-spacing: .1em;
  font-size: 2em; line-height: 1.25;
  text-shadow: 0 2px 3px rgba(0,0,0,.55);
}
.cover-orn { color: #b89a4e; font-size: 1.5em; margin-top: 1.1em; }
.cover-orn.big { font-size: 2.4em; }
.cover-sub { letter-spacing: .5em; font-size: .68em; margin-top: 1em; color: #cdb069; text-indent: .5em; }
.cover-author { margin-top: 2.4em; font-variant: small-caps; letter-spacing: .18em; font-size: 1.02em; color: #e2c26a; }

/* ---------- endpapers ---------- */
.endpaper {
  background:
    repeating-linear-gradient(45deg, rgba(120,96,58,.05) 0 3px, rgba(0,0,0,0) 3px 6px),
    linear-gradient(#e8dfc8, #dcd2b6);
  box-shadow: inset 0 0 55px rgba(96,74,40,.25);
}

/* ---------- paper pages ---------- */
.paper {
  background:
    radial-gradient(ellipse at 50% 45%, #faf5e9 55%, #f1e8d4 92%, #eadfc7 100%);
  color: #33291f;
}
/* inner spine shadow — the fold between the two pages of a spread */
.pg-right::before {
  content: ''; position: absolute; top: 0; bottom: 0; left: 0; width: 9%;
  background: linear-gradient(to right, rgba(84,26,18,.30), rgba(84,26,18,.10) 52%, rgba(84,26,18,0));
  pointer-events: none; z-index: 3;
}
.pg-left::before {
  content: ''; position: absolute; top: 0; bottom: 0; right: 0; width: 9%;
  background: linear-gradient(to left, rgba(84,26,18,.26), rgba(84,26,18,.09) 52%, rgba(84,26,18,0));
  pointer-events: none; z-index: 3;
}
.pg-single::before {
  content: ''; position: absolute; top: 0; bottom: 0; left: 0; width: 6%;
  background: linear-gradient(to right, rgba(62,44,16,.18), rgba(84,26,18,0));
  pointer-events: none; z-index: 3;
}
/* outer edge — hint of the closed page stack */
.pg-right::after, .pg-left::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 7px;
  pointer-events: none; z-index: 3; opacity: .5;
}
.pg-right::after { right: 0; background: repeating-linear-gradient(to left, rgba(90,70,40,.16) 0 1px, rgba(0,0,0,0) 1px 3px); }
.pg-left::after  { left: 0;  background: repeating-linear-gradient(to right, rgba(90,70,40,.16) 0 1px, rgba(0,0,0,0) 1px 3px); }

/* ---------- text ---------- */
.textenv {
  font-family: Georgia, 'Palatino Linotype', 'Book Antiqua', 'Times New Roman', serif;
  line-height: 1.55; text-align: justify;
  hyphens: auto; -webkit-hyphens: auto; -ms-hyphens: auto;
  text-rendering: optimizeLegibility;
  color: #33291f;
}
.textenv p { margin: 0; text-indent: 1.5em; }
.textenv p.noind { text-indent: 0; }
.chead { margin-bottom: 1.25em; }
.cnum {
  text-align: center; font-variant: small-caps;
  letter-spacing: .24em; font-size: 1.26em;
  padding-top: 1em; text-indent: .24em; color: #4a3b28;
}
.corn { text-align: center; color: #8a744a; margin-top: .4em; font-size: 1em; }
.brk { text-align: center; margin: 1.1em 0; color: #8a744a; font-size: .78em; letter-spacing: .5em; text-indent: .5em; }
.theend { text-align: center; margin-top: 2.6em; letter-spacing: .4em; text-indent: .4em; font-size: 1.02em; color: #5a4a33; }
.folio { text-align: center; font-size: .66em; letter-spacing: .18em; color: #8d7b5f; font-family: Georgia, serif; }

/* ---------- title page ---------- */
.titlepage {
  position: absolute; inset: 10% 12%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; font-family: Georgia, 'Palatino Linotype', serif; color: #3d3020;
}
.tp-title { font-variant: small-caps; font-size: 1.85em; letter-spacing: .1em; line-height: 1.3; }
.tp-rule { width: 42%; height: 1px; background: #a08c5a; margin: 1.4em 0; }
.tp-sub { letter-spacing: .45em; font-size: .72em; color: #6a583c; text-indent: .45em; }
.tp-by { margin-top: 2.2em; font-style: italic; font-size: .85em; color: #6a583c; }
.tp-author { margin-top: .5em; font-variant: small-caps; letter-spacing: .16em; font-size: 1.12em; }
.tp-orn { margin-top: 2.2em; color: #8a744a; font-size: 1.3em; }

/* ---------- chrome ---------- */
.nav {
  position: fixed; top: 50%; transform: translateY(-50%);
  z-index: 60; cursor: pointer;
  font: 46px/1 Georgia, serif; color: rgba(255,255,255,.30);
  padding: 26px 14px; transition: color .2s;
  background: none; border: 0; margin: 0;
  -webkit-appearance: none; appearance: none;
}
.nav:hover { color: rgba(255,255,255,.75); }
#nav-prev { left: 4px; }
#nav-next { right: 4px; }

#hint {
  position: fixed; left: 50%; bottom: 58px; transform: translateX(-50%);
  z-index: 60; font: 12.5px/1.4 Georgia, serif; letter-spacing: .06em;
  color: rgba(255,255,255,.45); background: rgba(0,0,0,.25);
  padding: 6px 14px; border-radius: 20px; white-space: nowrap;
  transition: opacity 1.2s; pointer-events: none;
}
#hint.gone { opacity: 0; }

#loader {
  position: fixed; inset: 0; z-index: 100;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
  background: rgba(24,21,18,.82);
  font: 15px Georgia, serif; letter-spacing: .08em; color: #d8c9a6;
  opacity: 0; pointer-events: none; transition: opacity .25s;
}
#loader.show { opacity: 1; pointer-events: auto; }
#loader .spin {
  width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid rgba(216,201,166,.25); border-top-color: #d8c9a6;
  animation: lspin .9s linear infinite;
}
@keyframes lspin { to { transform: rotate(360deg); } }

/* ---------- embossed cover tooling ---------- */
.cover-inner::before {
  content: ''; position: absolute; inset: 2.2%;
  pointer-events: none; opacity: .9;
  background-image: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='28'%20height='28'%3E%20%3Cg%20fill='none'%20stroke-width='1.4'%3E%20%3Cg%20transform='translate(0.9,0.9)'%20stroke='rgba(0,0,0,0.50)'%3E%20%3Cpath%20d='M14%206%20L22%2014%20L14%2022%20L6%2014%20Z'/%3E%3Ccircle%20cx='14'%20cy='14'%20r='1.8'/%3E%20%3C/g%3E%20%3Cg%20transform='translate(-0.6,-0.6)'%20stroke='rgba(255,255,255,0.13)'%3E%20%3Cpath%20d='M14%206%20L22%2014%20L14%2022%20L6%2014%20Z'/%3E%3Ccircle%20cx='14'%20cy='14'%20r='1.8'/%3E%20%3C/g%3E%20%3C/g%3E%3C/svg%3E"), url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='28'%20height='28'%3E%20%3Cg%20fill='none'%20stroke-width='1.4'%3E%20%3Cg%20transform='translate(0.9,0.9)'%20stroke='rgba(0,0,0,0.50)'%3E%20%3Cpath%20d='M14%206%20L22%2014%20L14%2022%20L6%2014%20Z'/%3E%3Ccircle%20cx='14'%20cy='14'%20r='1.8'/%3E%20%3C/g%3E%20%3Cg%20transform='translate(-0.6,-0.6)'%20stroke='rgba(255,255,255,0.13)'%3E%20%3Cpath%20d='M14%206%20L22%2014%20L14%2022%20L6%2014%20Z'/%3E%3Ccircle%20cx='14'%20cy='14'%20r='1.8'/%3E%20%3C/g%3E%20%3C/g%3E%3C/svg%3E"), url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='28'%20height='28'%3E%20%3Cg%20fill='none'%20stroke-width='1.4'%3E%20%3Cg%20transform='translate(0.9,0.9)'%20stroke='rgba(0,0,0,0.50)'%3E%20%3Cpath%20d='M14%206%20L22%2014%20L14%2022%20L6%2014%20Z'/%3E%3Ccircle%20cx='14'%20cy='14'%20r='1.8'/%3E%20%3C/g%3E%20%3Cg%20transform='translate(-0.6,-0.6)'%20stroke='rgba(255,255,255,0.13)'%3E%20%3Cpath%20d='M14%206%20L22%2014%20L14%2022%20L6%2014%20Z'/%3E%3Ccircle%20cx='14'%20cy='14'%20r='1.8'/%3E%20%3C/g%3E%20%3C/g%3E%3C/svg%3E"), url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='28'%20height='28'%3E%20%3Cg%20fill='none'%20stroke-width='1.4'%3E%20%3Cg%20transform='translate(0.9,0.9)'%20stroke='rgba(0,0,0,0.50)'%3E%20%3Cpath%20d='M14%206%20L22%2014%20L14%2022%20L6%2014%20Z'/%3E%3Ccircle%20cx='14'%20cy='14'%20r='1.8'/%3E%20%3C/g%3E%20%3Cg%20transform='translate(-0.6,-0.6)'%20stroke='rgba(255,255,255,0.13)'%3E%20%3Cpath%20d='M14%206%20L22%2014%20L14%2022%20L6%2014%20Z'/%3E%3Ccircle%20cx='14'%20cy='14'%20r='1.8'/%3E%20%3C/g%3E%20%3C/g%3E%3C/svg%3E");
  background-repeat: repeat-x, repeat-x, repeat-y, repeat-y;
  background-position: left top, left bottom, left top, right top;
  background-size: 28px 28px;
}
.cover-inner::after {
  content: ''; position: absolute; inset: 1.4%;
  pointer-events: none; opacity: .95;
  background-image: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='56'%20height='56'%3E%20%3Cg%20fill='none'%20stroke-width='1.5'%3E%20%3Cg%20transform='translate(1,1)'%20stroke='rgba(0,0,0,0.50)'%3E%20%3Ccircle%20cx='28'%20cy='28'%20r='16'/%3E%3Ccircle%20cx='28'%20cy='28'%20r='9'/%3E%20%3Cpath%20d='M28%2012%20Q31%2020%2028%2024%20Q25%2020%2028%2012%20Z%20M28%2044%20Q31%2036%2028%2032%20Q25%2036%2028%2044%20Z%20M12%2028%20Q20%2031%2024%2028%20Q20%2025%2012%2028%20Z%20M44%2028%20Q36%2031%2032%2028%20Q36%2025%2044%2028%20Z'/%3E%20%3C/g%3E%20%3Cg%20transform='translate(-0.7,-0.7)'%20stroke='rgba(255,255,255,0.13)'%3E%20%3Ccircle%20cx='28'%20cy='28'%20r='16'/%3E%3Ccircle%20cx='28'%20cy='28'%20r='9'/%3E%20%3Cpath%20d='M28%2012%20Q31%2020%2028%2024%20Q25%2020%2028%2012%20Z%20M28%2044%20Q31%2036%2028%2032%20Q25%2036%2028%2044%20Z%20M12%2028%20Q20%2031%2024%2028%20Q20%2025%2012%2028%20Z%20M44%2028%20Q36%2031%2032%2028%20Q36%2025%2044%2028%20Z'/%3E%20%3C/g%3E%20%3C/g%3E%3C/svg%3E"), url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='56'%20height='56'%3E%20%3Cg%20fill='none'%20stroke-width='1.5'%3E%20%3Cg%20transform='translate(1,1)'%20stroke='rgba(0,0,0,0.50)'%3E%20%3Ccircle%20cx='28'%20cy='28'%20r='16'/%3E%3Ccircle%20cx='28'%20cy='28'%20r='9'/%3E%20%3Cpath%20d='M28%2012%20Q31%2020%2028%2024%20Q25%2020%2028%2012%20Z%20M28%2044%20Q31%2036%2028%2032%20Q25%2036%2028%2044%20Z%20M12%2028%20Q20%2031%2024%2028%20Q20%2025%2012%2028%20Z%20M44%2028%20Q36%2031%2032%2028%20Q36%2025%2044%2028%20Z'/%3E%20%3C/g%3E%20%3Cg%20transform='translate(-0.7,-0.7)'%20stroke='rgba(255,255,255,0.13)'%3E%20%3Ccircle%20cx='28'%20cy='28'%20r='16'/%3E%3Ccircle%20cx='28'%20cy='28'%20r='9'/%3E%20%3Cpath%20d='M28%2012%20Q31%2020%2028%2024%20Q25%2020%2028%2012%20Z%20M28%2044%20Q31%2036%2028%2032%20Q25%2036%2028%2044%20Z%20M12%2028%20Q20%2031%2024%2028%20Q20%2025%2012%2028%20Z%20M44%2028%20Q36%2031%2032%2028%20Q36%2025%2044%2028%20Z'/%3E%20%3C/g%3E%20%3C/g%3E%3C/svg%3E"), url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='56'%20height='56'%3E%20%3Cg%20fill='none'%20stroke-width='1.5'%3E%20%3Cg%20transform='translate(1,1)'%20stroke='rgba(0,0,0,0.50)'%3E%20%3Ccircle%20cx='28'%20cy='28'%20r='16'/%3E%3Ccircle%20cx='28'%20cy='28'%20r='9'/%3E%20%3Cpath%20d='M28%2012%20Q31%2020%2028%2024%20Q25%2020%2028%2012%20Z%20M28%2044%20Q31%2036%2028%2032%20Q25%2036%2028%2044%20Z%20M12%2028%20Q20%2031%2024%2028%20Q20%2025%2012%2028%20Z%20M44%2028%20Q36%2031%2032%2028%20Q36%2025%2044%2028%20Z'/%3E%20%3C/g%3E%20%3Cg%20transform='translate(-0.7,-0.7)'%20stroke='rgba(255,255,255,0.13)'%3E%20%3Ccircle%20cx='28'%20cy='28'%20r='16'/%3E%3Ccircle%20cx='28'%20cy='28'%20r='9'/%3E%20%3Cpath%20d='M28%2012%20Q31%2020%2028%2024%20Q25%2020%2028%2012%20Z%20M28%2044%20Q31%2036%2028%2032%20Q25%2036%2028%2044%20Z%20M12%2028%20Q20%2031%2024%2028%20Q20%2025%2012%2028%20Z%20M44%2028%20Q36%2031%2032%2028%20Q36%2025%2044%2028%20Z'/%3E%20%3C/g%3E%20%3C/g%3E%3C/svg%3E"), url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='56'%20height='56'%3E%20%3Cg%20fill='none'%20stroke-width='1.5'%3E%20%3Cg%20transform='translate(1,1)'%20stroke='rgba(0,0,0,0.50)'%3E%20%3Ccircle%20cx='28'%20cy='28'%20r='16'/%3E%3Ccircle%20cx='28'%20cy='28'%20r='9'/%3E%20%3Cpath%20d='M28%2012%20Q31%2020%2028%2024%20Q25%2020%2028%2012%20Z%20M28%2044%20Q31%2036%2028%2032%20Q25%2036%2028%2044%20Z%20M12%2028%20Q20%2031%2024%2028%20Q20%2025%2012%2028%20Z%20M44%2028%20Q36%2031%2032%2028%20Q36%2025%2044%2028%20Z'/%3E%20%3C/g%3E%20%3Cg%20transform='translate(-0.7,-0.7)'%20stroke='rgba(255,255,255,0.13)'%3E%20%3Ccircle%20cx='28'%20cy='28'%20r='16'/%3E%3Ccircle%20cx='28'%20cy='28'%20r='9'/%3E%20%3Cpath%20d='M28%2012%20Q31%2020%2028%2024%20Q25%2020%2028%2012%20Z%20M28%2044%20Q31%2036%2028%2032%20Q25%2036%2028%2044%20Z%20M12%2028%20Q20%2031%2024%2028%20Q20%2025%2012%2028%20Z%20M44%2028%20Q36%2031%2032%2028%20Q36%2025%2044%2028%20Z'/%3E%20%3C/g%3E%20%3C/g%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left top, right top, left bottom, right bottom;
  background-size: 52px 52px;
}

/* ---------- illustration captions & display lines ---------- */
.illus {
  margin: 1.15em 5%; padding: .5em 3%;
  text-align: center; font-style: italic;
  font-size: .84em; line-height: 1.45; color: #6b5a3e;
  border-top: 1px solid rgba(122,100,60,.4);
  border-bottom: 1px solid rgba(122,100,60,.4);
}
.disp {
  text-align: center; margin: 1em 8%;
  font-variant: small-caps; letter-spacing: .12em;
  font-size: .95em; color: #4a3b28;
}

.ctitle {
  text-align: center; font-variant: small-caps;
  letter-spacing: .08em; font-size: 1.05em;
  margin-top: .45em; color: #5a4a33;
}
.verse {
  text-align: center; font-style: italic;
  margin: 1.1em 0; line-height: 1.65; color: #4a3b28;
}

/* A PROSE EPIGRAPH -- the motto at the head of a chapter when it is a
   paragraph rather than a line of verse. Indented on both sides so the
   measure is visibly narrower than the text it stands over, which is what
   tells the eye it is a quotation and not the chapter's first paragraph. */
.epig {
  margin: 1.15em 7% 1.5em; text-indent: 0;
  font-style: italic; font-size: .9em; line-height: 1.6;
  color: #4a3b28; text-align: justify;
}
.epig + .epig { margin-top: -.7em; }   /* a quotation and its translation */

.letter {
  margin: 1.1em 6%; padding: .7em 1em;
  font-size: .88em; line-height: 1.6; font-style: italic;
  color: #4a3b28; background: rgba(146,120,70,.07);
  border-left: 2px solid rgba(122,100,60,.45);
}

.songtitle {
  text-align: center; font-variant: small-caps; letter-spacing: .18em;
  text-indent: .18em; font-size: .92em; color: #5a4a33; margin: 1.2em 0 .3em;
}
.plate {
  margin: 1.2em auto; padding: .45em 1.2em; width: fit-content;
  text-align: center; letter-spacing: .3em; text-indent: .3em; font-size: .86em;
  color: #4a3b28; border: 1px solid rgba(122,100,60,.55); border-radius: 2px;
  background: rgba(170,150,95,.14);
}
.prog {
  margin: 1.1em 6%; text-align: center; font-size: .85em; line-height: 1.75;
  color: #4a3b28; border-top: 1px solid rgba(122,100,60,.4);
  border-bottom: 1px solid rgba(122,100,60,.4); padding: .7em 0;
}


/* ---------- skip to page (fixed overlay: never touches #flipbook) ---------- */
#skipbar {
  position: fixed; left: 50%; bottom: 12px;
  transform: translateX(-50%) translateY(10px);
  z-index: 70;
  display: flex; align-items: center; gap: 8px;
  opacity: 0; pointer-events: none;
  transition: opacity .32s ease, transform .32s ease;
  font-family: Georgia, 'Palatino Linotype', serif;
}
#skipbar.vis { opacity: 1; pointer-events: auto; transform: translateX(-50%) translateY(0); }

#skipbar button {
  font: 13.5px/1 Georgia, serif; letter-spacing: .06em;
  color: #ffeec0; background: rgba(38,10,66,.85);
  border: 1px solid rgba(255,216,106,.55); border-radius: 18px;
  padding: 9px 16px; cursor: pointer;
  -webkit-appearance: none; appearance: none;
  transition: background .18s, color .18s, border-color .18s;
}
#skipbar button:hover { background: rgba(70,21,122,.94); color: #fff8dc; border-color: #ffd86a; }
#skipbar button:focus-visible { outline: 2px solid #ffd86a; outline-offset: 2px; }

#skip-wrap {
  display: none; align-items: center; gap: 6px;
  background: rgba(38,10,66,.9);
  border: 1px solid rgba(255,216,106,.55); border-radius: 18px;
  padding: 5px 6px 5px 12px;
}
#skip-wrap.open { display: flex; }
#skip-btn.gone { display: none; }

#skip-input {
  width: 74px; font: 14px/1 Georgia, serif; text-align: center;
  color: #1b0733; background: #f8f0e2;
  border: 1px solid rgba(255,216,106,.7); border-radius: 12px;
  padding: 7px 8px; -webkit-appearance: none; appearance: none;
}
#skip-input:focus { outline: 2px solid #ffd86a; outline-offset: 1px; }
#skip-err {
  font: 11.5px/1 Georgia, serif; letter-spacing: .05em;
  color: rgba(255,238,192,.72); padding-right: 8px; white-space: nowrap;
}

@keyframes skipShake {
  0%,100% { transform: translateX(0); }
  20% { transform: translateX(-5px); } 40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); } 80% { transform: translateX(3px); }
}
#skip-wrap.bad { animation: skipShake .34s ease; border-color: #ff5c7a; }
#skip-wrap.bad #skip-err { color: #ffb3c1; }

@media (prefers-reduced-motion: reduce) {
  #skipbar { transition: opacity .2s ease; transform: translateX(-50%); }
  #skipbar.vis { transform: translateX(-50%); }
  #skip-wrap.bad { animation: none; }
}

/* ---------- chapter half-title page ----------
   Same cream stock, margins and rules as a text page; no folio, as a printed
   half-title carries none. .chapanim is an empty full-bleed stage kept for
   per-chapter artwork later. Animation "rise and settle": numeral lifts, a
   hairline draws outward from the centre, the title follows.                */
.paper.intro { overflow: hidden; }

.intropage {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.chapanim { position: absolute; inset: 0; pointer-events: none; }

.intro-label {
  position: relative; z-index: 2;
  text-align: center; padding: 0 14%;
  font-family: Georgia, 'Palatino Linotype', serif;
  color: #3a2f22;
}
.intro-label .il-num {
  display: block; font-size: .74em; letter-spacing: .34em;
  text-transform: uppercase; color: #8a6d3a;
}
.intro-label .il-rule {
  display: block; height: 1px; width: 0; margin: 1.15em auto;
  background: linear-gradient(to right, transparent, #b08d4c, transparent);
}
.intro-label .il-txt {
  display: block; font-size: 1.42em; line-height: 1.35; letter-spacing: .04em;
}
.intro-label .il-txt.il-solo {
  font-size: 1.9em; letter-spacing: .3em; text-indent: .3em; text-transform: uppercase;
}
/* An optional summary beneath the title. Set smaller, italic and narrower
   than the measure of a text page, so that it reads as apparatus rather than
   as the opening of the story it stands in front of. */
.intro-label .il-sum {
  display: block; max-width: 22em; margin: 1.45em auto 0;
  font-size: .86em; line-height: 1.62; letter-spacing: .012em;
  font-style: italic; color: #5c4a32;
}

/* the reveal runs when the page comes into view, not on a loop */
.intropage .il-num,
.intropage .il-rule,
.intropage .il-sum,
.intropage .il-txt { opacity: 0; }

.intropage.play .il-num  { animation: introUp   .70s ease-out .10s both; }
.intropage.play .il-rule { animation: introRule .60s ease-out .68s both; }
.intropage.play .il-txt  { animation: introUp   .80s ease-out 1.00s both; }
.intropage.play .il-sum  { animation: introUp   .90s ease-out 1.38s both; }

@keyframes introUp   { from { opacity: 0; transform: translateY(12px); }
                       to   { opacity: 1; transform: none; } }
@keyframes introRule { from { width: 0;  opacity: 0; }
                       to   { width: 42%; opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  .intropage .il-num, .intropage .il-txt, .intropage .il-sum { opacity: 1; }
  .intropage .il-rule { opacity: 1; width: 42%; }
  .intropage.play .il-num,
  .intropage.play .il-rule,
  .intropage.play .il-sum,
  .intropage.play .il-txt { animation: none; }
  /* the drawing stays, but stops moving */
  .chapanim * { animation: none !important; }
}


/* ---------- translator's footnote ----------
   Three notes in Crime and Punishment are the translator's, not Dostoevsky's.
   They are set smaller and ruled off so they can't be mistaken for the text. */
.tnote { font-size: .82em; line-height: 1.5; color: #5b4f3f; margin: 1.05em 0 .95em;
         padding-top: .55em; border-top: 1px solid rgba(90,70,40,.28); text-indent: 0; }
/* A note with no marker of its own gets a dagger; a note that carries its
   own asterisk marker prints that instead, so the reader can match it. */
.tnote.dagger::before { content: '\2020\2003'; color: #937a45; }
.tn-m { color: #937a45; margin-right: .6em; font-weight: 700; letter-spacing: .04em; }


/* ---------- part half-title ----------
   'Part I' owns a whole leaf, like a chapter half-title. .partanim is a
   full-bleed stage left deliberately empty: the per-part animation goes there
   later and needs no change to the page geometry. The page keeps the ordinary
   paper aesthetic rather than going dark. */
.paper.part { overflow: hidden; }

/* ---------- full-page plate ----------
   A leaf given over entirely to one picture. No folio, no text envelope,
   nothing beside it. object-fit: contain is what keeps the plate honest:
   the image is fitted INSIDE the leaf whatever its proportions, so a wide
   plan and a tall portrait are both shown whole rather than cropped to
   fill. The inset leaves the paper's own margin showing as a mount. */
.paper.plateleaf { overflow: hidden; }
.fullimg {
  position: absolute; inset: 7% 8%;
  display: flex; align-items: center; justify-content: center;
}
.fullimg img {
  max-width: 100%; max-height: 100%;
  width: auto; height: auto; object-fit: contain;
  /* the plates in this series are line blocks on white; a soft border and
     a little shadow sit them on the cream stock instead of letting them
     float as a bright rectangle */
  background: #fdfaf2;
  padding: 2.2%;
  border: 1px solid rgba(122, 100, 60, .45);
  box-shadow: 0 2px 10px rgba(84, 26, 18, .18);
}
.parttitle { position: absolute; inset: 0; display: flex;
             flex-direction: column; align-items: center; justify-content: center; }
.partanim  { position: absolute; inset: 0; pointer-events: none; }
.part-label { position: relative; z-index: 2; text-align: center; padding: 0 14%;
              font-family: Georgia,'Palatino Linotype',serif; color: #3a2f22; }
.part-label .pt-rule { display: block; height: 1px; width: 0; margin: 1.5em auto;
              background: linear-gradient(to right, transparent, #b08d4c, transparent); }

/* The word sits small and widely tracked above a big display numeral. */
.part-label .pt-word { display: block; font-size: .95em; letter-spacing: .52em;
              text-indent: .52em; text-transform: uppercase; color: #7a6440;
              margin-bottom: .18em; }
.part-label .pt-num  { display: block; font-size: 5.6em; line-height: 1;
              letter-spacing: .10em; text-indent: .10em; font-weight: 700;
              text-transform: uppercase;
              background: linear-gradient(180deg, #6b5636 0%, #b08d4c 42%,
                                          #e6cd92 62%, #8a6f42 100%);
              -webkit-background-clip: text; background-clip: text;
              color: #8a6f42; -webkit-text-fill-color: transparent;
              filter: drop-shadow(0 2px 0 rgba(255,252,244,.55))
                      drop-shadow(0 -1px 0 rgba(74,58,32,.28)); }
/* The legend's name, under the numeral. Optional: only parts that carry a
   "sub" get one. Set in italic at text size so it reads as a name rather
   than competing with the display numeral above it. */
.part-label .pt-sub  { display: block; margin-top: .70em; font-size: 1.06em;
              font-style: italic; letter-spacing: .06em; line-height: 1.35;
              color: #6b5636; }
/* A label with no numeral -- "Epilogue" -- is set as one modest line. */
.parttitle.solo .pt-num { font-size: 2.3em; letter-spacing: .30em; text-indent: .30em; }

/* ---- the animated stage behind the lettering ----
   Three rings open outward from the centre and six motes drift up through
   them. Every looping period is distinct, per the out-of-phase rule that
   governs the covers; the one-shot reveals are staged so the rules draw,
   then the word, then the numeral lands. */
.partanim .pa-ring { position: absolute; left: 50%; top: 50%; border-radius: 50%;
              border: 1px solid rgba(176,141,76,.42); opacity: 0;
              transform: translate(-50%,-50%) scale(.2); }
.partanim .g0 { width: 34%; padding-bottom: 34%; }
.partanim .g1 { width: 52%; padding-bottom: 52%; border-color: rgba(176,141,76,.30); }
.partanim .g2 { width: 72%; padding-bottom: 72%; border-color: rgba(176,141,76,.20); }
.partanim .pa-mote { position: absolute; width: 5px; height: 5px; border-radius: 50%;
              background: rgba(176,141,76,.55); opacity: 0; }
.partanim .m0 { left: 22%; bottom: 16%; }
.partanim .m1 { left: 37%; bottom: 10%; }
.partanim .m2 { left: 52%; bottom: 19%; }
.partanim .m3 { left: 66%; bottom: 12%; }
.partanim .m4 { left: 78%; bottom: 22%; }
.partanim .m5 { left: 45%; bottom: 26%; }

/* ---- a drawing in place of the rings ----
   A book may hand its Book pages line art of their own, standing for the
   chapters in that Book. It is a full-bleed stage under the lettering, like
   .chapanim on a chapter half-title, and it REPLACES the rings rather than
   joining them -- the engine emits one stage or the other, never both.
   The drawings themselves live in the per-book scenes.css the builder
   appends; all this rule does is give them a stage to hang in. */
.partart { position: absolute; inset: 0; pointer-events: none; }

.parttitle .pt-word, .parttitle .pt-num, .parttitle .pt-rule,
.parttitle .pt-sub { opacity: 0; }
.parttitle.play .pt-rule:first-child { animation: ptRule .60s ease-out .10s both; }
.parttitle.play .pt-word { animation: ptUp .70s ease-out .46s both; }
.parttitle.play .pt-num  { animation: ptNum .95s cubic-bezier(.19,1,.22,1) .62s both; }
/* The legend's name arrives after the numeral has settled, and before
   the closing rule draws itself. */
.parttitle.play .pt-sub  { animation: ptUp .70s ease-out 1.16s both; }
.parttitle.play .pt-rule:last-child  { animation: ptRule .60s ease-out 1.62s both; }
.parttitle.play .g0 { animation: ptRing 1.50s cubic-bezier(.22,.9,.3,1) .30s both,
                                 ptBreathe 7.30s ease-in-out 1.9s infinite; }
.parttitle.play .g1 { animation: ptRing 1.70s cubic-bezier(.22,.9,.3,1) .48s both,
                                 ptBreathe 9.10s ease-in-out 2.2s infinite; }
.parttitle.play .g2 { animation: ptRing 1.90s cubic-bezier(.22,.9,.3,1) .66s both,
                                 ptBreathe 11.40s ease-in-out 2.6s infinite; }
.parttitle.play .m0 { animation: ptMote 6.20s ease-in-out 1.40s infinite; }
.parttitle.play .m1 { animation: ptMote 7.10s ease-in-out 1.95s infinite; }
.parttitle.play .m2 { animation: ptMote 8.30s ease-in-out 2.40s infinite; }
.parttitle.play .m3 { animation: ptMote 9.40s ease-in-out 1.70s infinite; }
.parttitle.play .m4 { animation: ptMote 10.60s ease-in-out 2.80s infinite; }
.parttitle.play .m5 { animation: ptMote 11.90s ease-in-out 3.20s infinite; }

/* ---------- the sand sequence on a part page ----------
   Three stages, in this order: the Book's title fades in letter by letter,
   the letters blow away downwind, and the numeral resolves in the space they
   leave. build.py bakes each letter's two delays and its own drift into
   inline custom properties, so the stagger is scaled to the length of the
   title and every Book page runs to the same clock however long its title is.

   The title is laid over the whole leaf rather than stacked above the label,
   so the numeral appears exactly where the title was standing rather than
   somewhere underneath it. Words are inline-block: a line may break between
   words and never inside one.

   Note on the two animations per letter. sandOut is declared with `both`, so
   during its delay it holds its own first frame -- and its first frame is the
   fully-arrived letter, which is precisely what sandIn finished on. That is
   what lets the two run back to back on one element without the second one
   wiping out the first while it waits. */
/* Tracking and word space have to be set against each other. These titles
   are capitals, and tracked-out capitals need a word space that grows with
   the tracking -- at .12em of tracking against a .42em gap the two readings
   were close enough that the line ran together and you could not see where
   one word ended. The tracking is now half what it was and the word space
   two and a half times, which puts them an order of magnitude apart. */
.parttitle.sandseq .pt-sand { position: absolute; inset: 10% 11%; z-index: 3;
              display: flex; flex-wrap: wrap; gap: .35em 0;
              align-items: center; justify-content: center; align-content: center;
              font-family: Georgia,'Palatino Linotype',serif; color: #3a2f22;
              font-size: 1.06em; line-height: 1.85; letter-spacing: .06em;
              pointer-events: none; }

/* The word-space, and why it is a margin rather than the flex gap above.
   The letters are wrapped in one aria-hidden span so a screen reader gets the
   title once from the container instead of spelling it out. That wrapper is
   the ONLY child of the flex box, so flex gap had nothing to apply between --
   and because the builder joins the word spans with no whitespace at all,
   there was no word-space in the markup either. The words were separated by
   precisely the trailing letter-spacing of their last letter, which is to say
   by exactly the same distance as the letters inside them, which is exactly
   what a reader reported: you could not see where one word ended.

   display:contents lifts the words back out to be the flex items, and the
   margin gives them a word-space that holds whatever layout context they end
   up in. Belt and braces on purpose: this went wrong once already. */
.parttitle.sandseq .pt-sand .sandwrap { display: contents; }
.parttitle.sandseq .pt-sand .w { display: inline-block; white-space: nowrap;
              margin-right: 1.05em; }
.parttitle.sandseq .pt-sand .w:last-child { margin-right: 0; }
.parttitle.sandseq .pt-sand .l { display: inline-block; opacity: 0;
              will-change: transform, opacity, filter; }
/* The hold. The last letter of a title arrives at 1.55s -- one second of
   stagger plus its own .55s -- so the hold is what is left for reading it,
   not the whole of the number below. At 2.20s the assembled title stood for
   two thirds of a second, which is not long enough to read a line that can
   run to two hundred and fifty characters. At 5.60s it stands for four
   seconds. Everything downstream is timed off this number. */
.parttitle.sandseq.play .pt-sand .l {
              animation: sandIn .55s ease-out var(--fd) both,
                         sandOut 1.05s cubic-bezier(.42,0,.86,.24)
                                 calc(5.60s + var(--bd)) both; }

/* The numeral waits for the title to be most of the way gone: the first
   letters are still in the air when it starts to arrive. These four move with
   the hold above -- 3.40s later than they were, because the hold is. */
.parttitle.sandseq.play .pt-rule:first-child { animation: ptRule .60s ease-out 7.26s both; }
.parttitle.sandseq.play .pt-word { animation: ptUp .70s ease-out 7.42s both; }
.parttitle.sandseq.play .pt-num  { animation: ptNum .95s cubic-bezier(.19,1,.22,1) 7.58s both; }
.parttitle.sandseq.play .pt-rule:last-child { animation: ptRule .60s ease-out 8.00s both; }

@keyframes sandIn  { from { opacity:0; transform: translateY(12px) scale(.94);
                            filter: blur(3px); }
                     to   { opacity:1; transform:none; filter: blur(0); } }
@keyframes sandOut { 0%   { opacity:1; transform:none; filter: blur(0); }
                     22%  { opacity:.94;
                            transform: translate(calc(var(--dx) * .07), calc(var(--dy) * .07))
                                       rotate(calc(var(--r) * .05)); filter: blur(.4px); }
                     100% { opacity:0;
                            transform: translate(var(--dx), var(--dy))
                                       rotate(var(--r)) scale(.55); filter: blur(4px); } }

/* A reader who has asked for less motion gets the same three facts without
   the weather: the title simply is there, and the numeral simply is there. */
@media (prefers-reduced-motion: reduce) {
  .parttitle.sandseq .pt-sand .l,
  .parttitle.sandseq.play .pt-sand .l { animation: none; opacity: 1; }
  .parttitle.sandseq.play .pt-word,
  .parttitle.sandseq.play .pt-num,
  .parttitle.sandseq.play .pt-rule { animation-delay: 0s; }
  /* the Book's drawing stays on the page, but stops being drawn */
  .partart * { animation: none !important; }
}

@keyframes ptUp   { from { opacity:0; transform: translateY(14px); } to { opacity:1; transform:none; } }
@keyframes ptRule { from { width:0; opacity:0; } to { width:46%; opacity:1; } }
@keyframes ptNum  { 0%   { opacity:0; transform: translateY(26px) scale(.82); letter-spacing:.34em; }
                    100% { opacity:1; transform:none; letter-spacing:.10em; } }
@keyframes ptRing { from { opacity:0; transform: translate(-50%,-50%) scale(.2); }
                    to   { opacity:1; transform: translate(-50%,-50%) scale(1); } }
@keyframes ptBreathe { 0%,100% { opacity:.55; } 50% { opacity:1; } }
@keyframes ptMote { 0%   { opacity:0; transform: translateY(0) scale(.7); }
                    18%  { opacity:.85; }
                    82%  { opacity:.85; }
                    100% { opacity:0; transform: translateY(-190px) scale(1.25); } }


/* ---------- signature and subhead ----------
   Both were emitted by the engine but never styled: 75 signature lines across
   Little Women, Pride and Prejudice and The Jungle Book were rendering as
   ordinary paragraphs. A signature closes a letter, so it sits right and
   italic; a subhead is a minor division inside a chapter. */
.sig { text-align: right; font-style: italic; text-indent: 0;
       margin: .35em 0 1.05em; padding-right: .4em; color: #40362a; }
.subhead { text-align: center; text-indent: 0; margin: 1.35em 0 .85em;
           font-size: .93em; letter-spacing: .17em; text-transform: uppercase;
           color: #5b4a33; }

/* A SECTION HEAD -- the third level of division, added for The Theory of
   Moral Sentiments, which sets Part over Section over Chapter. It has to read
   as LARGER than a chapter head and SMALLER than a Part leaf, and the way it
   does that is by being ruled rather than by being loud: rules above and
   below mark it as a boundary, while the type stays close to the chapter
   head's size so the page does not acquire a second shouting voice. */
.sect {
  margin: 1.6em 4% 1.4em; text-align: center;
  border-top: 1.2px solid #c3b291;
  border-bottom: 1.2px solid #c3b291;
  padding: .55em 0 .6em;
}
.sect-num {
  display: block; font-variant: small-caps; letter-spacing: .16em;
  font-size: .82em; color: #8a7350; margin-bottom: .18em;
}
.sect-ttl {
  display: block; font-style: italic; font-size: 1.02em;
  line-height: 1.45; color: #4a3b28;
}

/* AN EPIGRAPH WITH ITS SOURCE, SET AS ONE OBJECT.  Udolpho heads every one of
   its 57 chapters with a quotation and names the poet under it, and eight more
   stand inside the prose.  The lines are centred italic like .verse; the rule
   beneath is what separates the quotation from the chapter it stands over, and
   the source is set small and spaced so that it reads as a signature rather
   than as a last line of the poem.  Measured as one block by the paginator, so
   a poet is never left stranded at the top of the following page. */
.motto {
  margin: 1.15em 8% 1.6em;
  text-indent: 0;
}
.motto-v {
  text-align: center; font-style: italic;
  font-size: .93em; line-height: 1.6; color: #4a3b28;
}
.motto-src {
  margin-top: .45em; padding-top: .4em;
  border-top: 1px solid rgba(150,124,74,.42);
  text-align: center; font-style: normal;
  font-variant: small-caps; letter-spacing: .15em; text-indent: .15em;
  font-size: .74em; color: #8a7350;
}
/* Directly under a chapter head the motto wants a little more air above it and
   a shade less below, so the quotation sits with the heading rather than
   floating between the heading and the first paragraph. */
.chead + .motto { margin-top: 1.5em; margin-bottom: 1.9em; }


/* squee cover. Scoped under .cover-front. */

/* The reset every illustrated cover needs. Without it the engine
   keeps its own 3px double gold border at inset 7%, which the
   600x820 artwork overflows, and keeps rendering .cover-sub from
   the book config, whose &nbsp;-joined words cannot wrap and run
   off both edges. The SVG sets its own lettering. */
.cover-front .cover-frame { padding: 0; border: 0; }
.cover-front .cover-title { width: 100%; font-size: 1em; letter-spacing: 0; text-shadow: none; }
.cover-front svg.cvsvg { width: 100%; height: auto; display: block; }
.cover-front .cover-orn, .cover-front .cover-sub, .cover-front .cover-author { display: none; }

/* The engine also stamps an embossed border of its own on every
   cover: .cover-inner::before repeats a diamond band along all
   four edges at 2.2% inset, and ::after sets rosettes in the four
   corners at 1.4%. Both are drawn as a dark copy offset against a
   light one -- the emboss technique. On a full-bleed illustration
   that reads as a frame the art is trapped inside, so it is off
   here. The back cover keeps it. */
.cover-front .cover-inner::before,
.cover-front .cover-inner::after { display: none; }

.cover-front .cvsvg text { font-family: Georgia,'Times New Roman',serif; text-anchor: middle; }

.cover-front, .cover-back { background: radial-gradient(ellipse at 30% 25%, rgba(255,255,255,.05), rgba(255,255,255,0) 55%), linear-gradient(135deg, #0d0a08 0%, #241b14 52%, #0d0a08 100%); }
.cover-front .sq-head { transform-box: view-box; transform-origin: 318px 516px; }
.cover-front .sq-head { animation: sqHead 9.30s ease-in-out 0.00s infinite; }
@keyframes sqHead { 0%,100%{transform:rotate(0deg)} 26%{transform:rotate(-4.2deg)} 58%{transform:rotate(3deg)} 80%{transform:rotate(-1deg)} }
.cover-front .sq-nut { transform-box: view-box; transform-origin: 176px 588px; }
.cover-front .sq-nut { animation: sqNut 13.10s linear 0.00s infinite; }
@keyframes sqNut { 0%{transform:rotate(0deg)} 100%{transform:rotate(60deg)} }
.cover-front .sq-tail { transform-box: view-box; transform-origin: 498px 776px; }
.cover-front .sq-tail { animation: sqTail 10.70s ease-in-out 0.00s infinite; }
@keyframes sqTail { 0%,100%{transform:rotate(0deg)} 38%{transform:rotate(2.4deg)} 70%{transform:rotate(-1.8deg)} }
.cover-front .sq-glow { animation: sqGlow 5.30s ease-in-out 0.00s infinite; }
@keyframes sqGlow { 0%,100%{opacity:.88} 36%{opacity:1} 63%{opacity:.7} 84%{opacity:.95} }
.cover-front .sq-lamp { animation: sqLamp 5.30s ease-out 0.09s infinite; }
@keyframes sqLamp { 0%,100%{opacity:.8} 36%{opacity:1} 63%{opacity:.62} 84%{opacity:.9} }
.cover-front .sq-fil.f0 { animation: sqFil0 7.30s ease-in-out 0.00s infinite; }
@keyframes sqFil0 { 0%,100%{opacity:.34} 44%{opacity:.94} 72%{opacity:.5} }
.cover-front .sq-fil.f1 { animation: sqFil1 8.70s ease-in-out 0.40s infinite; }
@keyframes sqFil1 { 0%,100%{opacity:.34} 44%{opacity:.94} 72%{opacity:.5} }
.cover-front .sq-fil.f2 { animation: sqFil2 10.10s ease-in-out 0.80s infinite; }
@keyframes sqFil2 { 0%,100%{opacity:.34} 44%{opacity:.94} 72%{opacity:.5} }
.cover-front .sq-fil.f3 { animation: sqFil3 11.50s ease-in-out 1.20s infinite; }
@keyframes sqFil3 { 0%,100%{opacity:.34} 44%{opacity:.94} 72%{opacity:.5} }
.cover-front .sq-fil.f4 { animation: sqFil4 12.90s ease-in-out 1.60s infinite; }
@keyframes sqFil4 { 0%,100%{opacity:.34} 44%{opacity:.94} 72%{opacity:.5} }
.cover-front .sq-fil.f5 { animation: sqFil5 14.30s ease-in-out 2.00s infinite; }
@keyframes sqFil5 { 0%,100%{opacity:.34} 44%{opacity:.94} 72%{opacity:.5} }
.cover-front .sq-fil.f6 { animation: sqFil6 15.70s ease-in-out 2.40s infinite; }
@keyframes sqFil6 { 0%,100%{opacity:.34} 44%{opacity:.94} 72%{opacity:.5} }
.cover-front .sq-fil.f7 { animation: sqFil7 17.10s ease-in-out 2.80s infinite; }
@keyframes sqFil7 { 0%,100%{opacity:.34} 44%{opacity:.94} 72%{opacity:.5} }
.cover-front .sq-fil.f8 { animation: sqFil8 18.50s ease-in-out 3.20s infinite; }
@keyframes sqFil8 { 0%,100%{opacity:.34} 44%{opacity:.94} 72%{opacity:.5} }
.cover-front .sq-fil.f9 { animation: sqFil9 19.90s ease-in-out 3.60s infinite; }
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