:root {
  --bg: #0c0b09;
  --ink: #e8e0d4;
  --muted: #9a907f;
  --gold: #c4a574;
  --line: rgba(196, 165, 116, 0.22);
  --panel: #14120f;
  --max: 40rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  font-size: 1.125rem;
  line-height: 1.7;
}

.field {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 18%, rgba(196, 165, 116, 0.08), transparent 42%),
    radial-gradient(ellipse at 80% 80%, rgba(196, 165, 116, 0.04), transparent 35%);
  z-index: 0;
}

.bar,
.toc,
main,
.colophon {
  position: relative;
  z-index: 1;
}

.bar {
  z-index: 4;
}

.toc {
  z-index: 3;
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(12, 11, 9, 0.88);
  backdrop-filter: blur(10px);
}

.mark {
  margin: 0;
  letter-spacing: 0.28em;
  font-size: 0.72rem;
  color: var(--gold);
}

.ghost {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
}

.ghost:hover,
.ghost:focus-visible {
  border-color: var(--gold);
  outline: none;
}

.toc {
  position: fixed;
  top: 3.4rem;
  left: 0;
  bottom: 0;
  width: min(22rem, 92vw);
  overflow: auto;
  padding: 1.25rem 1.4rem 2rem;
  background: var(--panel);
  border-right: 1px solid var(--line);
}

.toc-lead {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.toc a {
  display: block;
  color: var(--ink);
  text-decoration: none;
  padding: 0.28rem 0;
  border-bottom: 1px solid transparent;
}

.toc a:hover,
.toc a:focus-visible {
  color: var(--gold);
}

main {
  padding: 3.5rem 1.25rem 5rem;
}

.book {
  max-width: var(--max);
  margin: 0 auto;
}

.loading,
.book-error {
  color: var(--muted);
  text-align: center;
}

.book-error {
  color: #d9a39a;
}

.front {
  text-align: center;
  padding: 3rem 0 4.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 3rem;
}

.front p {
  margin: 0.35rem 0;
  color: var(--muted);
}

.front p:first-child,
.front strong {
  color: var(--ink);
}

.front a {
  color: var(--gold);
}

.book h1 {
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin: 3.2rem 0 1.2rem;
  color: var(--gold);
}

.book h2 {
  font-size: 1.28rem;
  font-weight: 600;
  margin: 2.8rem 0 1rem;
}

.book h3 {
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0.55rem 0;
}

.book p {
  margin: 0 0 1rem;
  white-space: pre-wrap;
}

.book a {
  color: var(--gold);
}

.book hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2.5rem 0;
}

.book ul,
.book ol {
  padding-left: 1.2rem;
}

.colophon {
  border-top: 1px solid var(--line);
  padding: 1.5rem 1.25rem 2.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.colophon p {
  margin: 0.3rem 0;
}

.colophon a {
  color: var(--gold);
}

@media (max-width: 720px) {
  .bar {
    flex-wrap: wrap;
    justify-content: center;
  }

  body {
    font-size: 1.05rem;
  }

  main {
    padding-top: 2rem;
  }
}

@media print {
  .bar,
  .toc,
  .field,
  .colophon {
    display: none;
  }

  body {
    background: #fff;
    color: #111;
  }
}