:root {
  --paper: #f4f2ec;
  --paper-soft: #faf9f5;
  --ink: #111315;
  --muted: #656664;
  --line: rgba(17, 19, 21, 0.14);
  --red: #b20909;
  --red-deep: #7d0505;
  --reading-size: 20px;
  --condensed: "Bahnschrift Condensed", "Aptos Narrow", "Arial Narrow", sans-serif;
  --serif: Georgia, "Times New Roman", serif;
  --sans: "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
  background: var(--paper);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #111315;
  --paper-soft: #171a1d;
  --ink: #efeee9;
  --muted: #aaa9a4;
  --line: rgba(255, 255, 255, 0.14);
  --red: #ed3a35;
  --red-deep: #ff655f;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--paper-soft) 88%, transparent), transparent 28%),
    var(--paper);
  font-family: var(--sans);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
  font: inherit;
}

.reading-progress {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--red);
  transition: width 80ms linear;
}

.reader-bar {
  position: sticky;
  z-index: 15;
  top: 0;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) auto;
  align-items: stretch;
  min-height: 74px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 91%, transparent);
  backdrop-filter: blur(15px);
}

.reader-brand,
.reader-current,
.reader-tools {
  display: flex;
  align-items: center;
}

.reader-brand {
  gap: 10px;
  padding: 0 28px;
  border-right: 1px solid var(--line);
  font: 900 20px/1 var(--condensed);
  letter-spacing: 1.4px;
}

.reader-brand small {
  color: var(--red);
  font-size: 9px;
  letter-spacing: 1px;
}

.reader-current {
  min-width: 0;
  gap: 15px;
  padding: 0 30px;
  font-family: var(--condensed);
  text-transform: uppercase;
}

.reader-current span {
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.reader-current strong {
  overflow: hidden;
  font-size: 15px;
  letter-spacing: 0.8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reader-tools {
  padding: 0 22px;
  border-left: 1px solid var(--line);
}

.header-read-link {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  min-height: 42px;
  padding: 0 18px;
  color: #fff;
  background: var(--red);
  font: 900 12px/1 var(--condensed);
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.header-read-link:hover,
.header-read-link:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
  background: var(--red-deep);
}

.reader-tools button {
  display: grid;
  width: 42px;
  height: 42px;
  padding: 0;
  place-items: center;
  border: 0;
  border-left: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  font: 800 14px/1 var(--condensed);
}

.reader-tools button:last-child {
  border-right: 1px solid var(--line);
}

.reader-tools button:hover,
.reader-tools button:focus-visible {
  color: #fff;
  outline: 0;
  background: var(--red);
}

.reader-tools button:disabled {
  cursor: default;
  opacity: 0.35;
}

.reader-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) 220px;
  align-items: stretch;
  min-height: calc(100vh - 74px);
}

.book-identity {
  padding: 30px 28px 50px;
  border-right: 1px solid var(--line);
}

.book-identity-inner,
.reader-index-inner {
  position: sticky;
  top: 104px;
}

.back-link {
  display: inline-block;
  margin-bottom: 30px;
  color: var(--red);
  font: 900 12px/1 var(--condensed);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--ink);
}

.reader-cover {
  width: min(180px, 100%);
  aspect-ratio: 2 / 2.82;
  margin-bottom: 26px;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 18px 35px rgba(0, 0, 0, 0.19);
}

.book-data {
  display: grid;
  grid-template-columns: 65px 1fr;
  gap: 9px 12px;
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font: 700 11px/1.2 var(--condensed);
  text-transform: uppercase;
}

.book-data dt {
  color: var(--muted);
}

.book-data dd {
  margin: 0;
}

.reader-page {
  min-width: 0;
  padding: clamp(50px, 6vw, 94px) clamp(38px, 7vw, 110px) 90px;
  border-right: 1px solid var(--line);
}

.reader-copy {
  max-width: 760px;
  margin: 0 auto;
}

.reader-kicker,
.chapter-number {
  color: var(--red);
  font: 900 12px/1 var(--condensed);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.reader-page h1 {
  max-width: 820px;
  margin: 19px 0 22px;
  font: 900 clamp(48px, 6vw, 84px)/0.86 var(--condensed);
  letter-spacing: -1.8px;
  text-transform: uppercase;
}

.reader-deck {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
  font: 700 14px/1.5 var(--sans);
  text-transform: uppercase;
}

.read-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 20px;
  max-width: 610px;
  min-height: 86px;
  margin-top: 34px;
  padding: 18px 23px;
  color: #fff;
  background: var(--red);
}

.read-cta span {
  font: 700 11px/1.2 var(--sans);
  letter-spacing: 0.7px;
  text-transform: uppercase;
}

.read-cta strong {
  font: 900 18px/1 var(--condensed);
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.read-cta i {
  font: normal 26px/1 var(--sans);
}

.read-cta:hover,
.read-cta:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 4px;
  background: var(--red-deep);
}

.chapter-rule {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 58px 0 64px;
}

.chapter-rule::before {
  width: 42px;
  height: 6px;
  content: "";
  background: var(--red);
}

.chapter-rule::after {
  flex: 1;
  height: 1px;
  content: "";
  background: var(--line);
}

.reader-section {
  scroll-margin-top: 110px;
}

.reader-section + .reader-section {
  margin-top: 78px;
  padding-top: 62px;
  border-top: 1px solid var(--line);
}

.reader-section h2 {
  margin: 10px 0 35px;
  font: 900 32px/1 var(--condensed);
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.manuscript-placeholder {
  position: relative;
  padding-left: 31px;
  border-left: 4px solid var(--red);
}

.reader-section p {
  margin: 0 0 1.25em;
  font: var(--reading-size)/1.82 var(--serif);
  text-wrap: pretty;
}

.reader-section p:first-child::first-letter {
  float: left;
  margin: 0.08em 0.12em 0 0;
  color: var(--red);
  font: 900 3.2em/0.8 var(--condensed);
}

.edition-note {
  color: var(--muted);
}

.book-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 85px;
  border: 1px solid var(--line);
  background: var(--line);
}

.book-pagination a,
.book-pagination span {
  min-height: 96px;
  padding: 22px;
  background: var(--paper);
}

.book-pagination a:hover,
.book-pagination a:focus-visible {
  color: #fff;
  outline: 0;
  background: var(--red);
}

.book-pagination small {
  display: block;
  margin-bottom: 9px;
  color: var(--muted);
  font: 800 10px/1 var(--condensed);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.book-pagination strong {
  font: 900 16px/1.05 var(--condensed);
  text-transform: uppercase;
}

.reader-index {
  padding: 36px 25px;
}

.reader-index h2 {
  margin: 0 0 25px;
  font: 900 12px/1 var(--condensed);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.reader-index nav {
  display: grid;
}

.reader-index a {
  padding: 13px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 800 12px/1.2 var(--condensed);
  text-transform: uppercase;
}

.reader-index a.active {
  color: var(--red);
}

.reader-status {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 4px solid var(--red);
  color: var(--muted);
  font: 700 10px/1.4 var(--condensed);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.reader-status strong {
  display: block;
  margin-bottom: 5px;
  color: var(--ink);
  font-size: 24px;
}

.description-status {
  line-height: 1.55;
}

@media (max-width: 1080px) {
  .reader-bar {
    grid-template-columns: 220px minmax(0, 1fr) auto;
  }

  .reader-shell {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .reader-index {
    display: none;
  }
}

@media (max-width: 720px) {
  .reader-bar {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .reader-brand {
    padding: 0 16px;
    border-right: 0;
  }

  .reader-brand small,
  .reader-current {
    display: none;
  }

  .reader-tools {
    padding: 0 10px;
  }

  .header-read-link {
    gap: 8px;
    padding: 0 12px;
    font-size: 10px;
  }

  .reader-shell {
    display: block;
  }

  .book-identity {
    padding: 25px 20px 28px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .book-identity-inner {
    position: static;
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 0 22px;
  }

  .back-link {
    grid-column: 1 / 3;
    margin-bottom: 20px;
  }

  .reader-cover {
    grid-column: 1;
    width: 104px;
    margin: 0;
  }

  .book-data {
    grid-column: 2;
    align-self: end;
    grid-template-columns: 58px 1fr;
    padding-top: 12px;
  }

  .reader-page {
    padding: 48px 20px 65px;
    border-right: 0;
  }

  .reader-page h1 {
    font-size: clamp(46px, 16vw, 68px);
  }

  .read-cta {
    grid-template-columns: 1fr auto;
    min-height: 72px;
  }

  .read-cta span {
    display: none;
  }

  .book-pagination {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reading-progress {
    transition: none;
  }
}