:root {
  --paper: #f3ede1;
  --paper-soft: #e9dfce;
  --ink: #211f1a;
  --muted: #706a5f;
  --line: #c8bcaa;
  --accent: #b63c2f;
  --accent-dark: #7d271f;
  --panel: #e8decd;
  --reading-size: 21px;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "DM Sans", system-ui, sans-serif;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --paper: #171714;
  --paper-soft: #22211d;
  --ink: #eee8dc;
  --muted: #aaa295;
  --line: #49463f;
  --accent: #df7465;
  --accent-dark: #f09a8f;
  --panel: #1d1c19;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 6rem; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  text-rendering: optimizeLegibility;
  transition: background .25s ease, color .25s ease;
}

a { color: inherit; }
button { color: inherit; }
::selection { background: var(--accent); color: #fff; }

.progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 3px;
  background: transparent;
}
.progress span { display: block; width: 0; height: 100%; background: var(--accent); }

.topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 90;
  height: 68px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 28px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(14px);
}
.wordmark { font: 600 17px/1 var(--serif); letter-spacing: .06em; text-decoration: none; }
.topbar-tools { justify-self: end; display: flex; gap: 6px; }
.icon-button, .text-button, .scrim {
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.icon-button, .text-button { width: 40px; height: 40px; border-radius: 50%; font: 600 14px/1 var(--sans); }
.icon-button:hover, .text-button:hover { background: var(--paper-soft); }
.menu-button { justify-self: start; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; }
.menu-button span { width: 17px; height: 1px; background: currentColor; }
.close-button { display: none; font-size: 28px; font-weight: 400; }
.theme-button { font-size: 21px; font-weight: 400; }

.contents {
  position: fixed;
  z-index: 70;
  inset: 68px auto 0 0;
  width: 310px;
  padding: 40px 30px 24px;
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: var(--panel);
}
.contents-head { display: flex; justify-content: space-between; align-items: start; margin-bottom: 25px; }
.eyebrow { margin: 0 0 9px; color: var(--accent); font: 600 11px/1.2 var(--sans); letter-spacing: .16em; text-transform: uppercase; }
.contents h2 { margin: 0; font-size: 34px; line-height: .95; font-weight: 500; }
.contents ol, .contents-inline ol { list-style: none; margin: 0; padding: 0; }
.contents li { margin: 0; }
.contents a {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 8px;
  padding: 10px 0;
  text-decoration: none;
  border-top: 1px solid color-mix(in srgb, var(--line) 75%, transparent);
}
.toc-number { color: var(--muted); font: 500 10px/1.5 var(--sans); letter-spacing: .08em; }
.toc-copy { display: grid; gap: 3px; }
.toc-copy strong { font: 500 14px/1.2 var(--serif); }
.toc-copy small { color: var(--muted); font: 400 10px/1.35 var(--sans); }
.contents a:hover strong, .contents a.active strong { color: var(--accent); }
.contents a.active .toc-number { color: var(--accent); }
.contents-foot { position: sticky; bottom: -24px; display: flex; justify-content: space-between; margin: 18px -30px -24px; padding: 14px 30px; background: var(--panel); border-top: 1px solid var(--line); color: var(--muted); font: 500 10px/1 var(--sans); text-transform: uppercase; letter-spacing: .1em; }
.scrim { display: none; }

main { margin-left: 310px; }
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(320px, .78fr);
  gap: clamp(40px, 7vw, 120px);
  align-items: center;
  padding: 120px clamp(48px, 8vw, 140px) 70px;
  background:
    radial-gradient(circle at 14% 25%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 24%),
    var(--paper);
}
.hero-copy { max-width: 680px; }
.hero h1 { margin: 0 0 30px; font-size: clamp(76px, 9.5vw, 154px); line-height: .74; letter-spacing: -.065em; font-weight: 500; }
.hero-deck { max-width: 570px; margin: 0 0 28px; color: var(--muted); font-size: clamp(21px, 2vw, 28px); line-height: 1.25; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px 20px; margin: 0 0 45px; color: var(--muted); font: 500 11px/1.3 var(--sans); text-transform: uppercase; letter-spacing: .08em; }
.hero-meta span:not(:last-child)::after { content: "·"; margin-left: 20px; }
.begin { display: inline-flex; align-items: center; gap: 14px; color: var(--accent-dark); font: 600 13px/1 var(--sans); text-decoration: none; text-transform: uppercase; letter-spacing: .1em; }
.begin span { font-size: 20px; transition: transform .2s ease; }
.begin:hover span { transform: translateY(4px); }
.cover-frame { margin: 0; justify-self: center; width: min(100%, 480px); transform: rotate(1.2deg); filter: drop-shadow(0 28px 28px rgba(40, 30, 18, .18)); }
.cover-frame img { display: block; width: 100%; height: auto; border: 1px solid color-mix(in srgb, var(--line) 70%, transparent); }

.contents-inline { display: none; }
.reader { max-width: 1180px; margin: 0 auto; padding: 0 clamp(36px, 8vw, 112px); }
.chapter { max-width: 760px; margin: 0 auto; padding: clamp(90px, 12vw, 160px) 0 30px; }
.chapter + .chapter { border-top: 1px solid var(--line); }
.chapter-header { margin-bottom: 52px; }
.chapter-kicker { margin: 0 0 15px; color: var(--accent); font: 600 11px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; }
.chapter h1 { margin: 0; font-size: clamp(48px, 6.4vw, 84px); line-height: .94; letter-spacing: -.045em; font-weight: 500; text-wrap: balance; }
.chapter-deck { margin: 20px 0 0; max-width: 600px; color: var(--muted); font-size: 22px; line-height: 1.25; }
.chapter > p, .chapter > blockquote, .chapter > ol, .chapter > ul, .chapter > h2 { font-size: var(--reading-size); }
.chapter > p { margin: 0 0 1em; line-height: 1.58; }
.chapter > p:first-of-type:not(.caption) { font-size: calc(var(--reading-size) + 3px); line-height: 1.5; }
.chapter > p:first-of-type:not(.caption)::first-letter { float: left; margin: .05em .08em -.08em 0; color: var(--accent); font-size: 4.1em; line-height: .7; font-weight: 500; }
.chapter a { color: var(--accent-dark); text-decoration-thickness: 1px; text-underline-offset: .16em; }
.chapter a:hover { color: var(--accent); }
.chapter blockquote { margin: 36px 0; padding: 2px 0 2px 28px; border-left: 3px solid var(--accent); color: var(--muted); font-style: italic; line-height: 1.5; }
.chapter blockquote p { margin: .3em 0; }
.chapter ol, .chapter ul { margin: 28px 0 32px; padding-left: 1.4em; line-height: 1.5; }
.chapter li { margin: 0 0 .7em; padding-left: .25em; }
.chapter h2 { margin: 62px 0 20px; font-weight: 500; line-height: 1.08; }
.chapter code { padding: .05em .2em; background: var(--paper-soft); font-size: .83em; }
.chapter hr { width: 90px; margin: 55px auto; border: 0; border-top: 1px solid var(--line); }
.chapter img { display: block; width: auto; max-width: min(100%, 720px); max-height: 72vh; margin: 46px auto 0; object-fit: contain; filter: sepia(.06) saturate(.9); }
.chapter p:has(> img) { margin: 0; }
.caption { margin: 11px auto 42px !important; max-width: 600px; color: var(--muted); font: 400 12px/1.4 var(--sans) !important; text-align: center; }

.web-colophon { max-width: 920px; margin: 140px auto 0; padding: 90px 0 110px; border-top: 1px solid var(--line); }
.web-colophon h2 { margin: 0 0 30px; font-size: clamp(50px, 6vw, 78px); line-height: .95; font-weight: 500; letter-spacing: -.045em; }
.web-colophon > p:not(.eyebrow):not(.fine-print) { max-width: 700px; font-size: 22px; line-height: 1.5; }
.verification { display: grid; gap: 8px; margin: 38px 0; padding: 24px 26px; border: 1px solid var(--line); background: var(--paper-soft); }
.verification strong { font: 600 12px/1 var(--sans); text-transform: uppercase; letter-spacing: .12em; color: var(--accent); }
.verification span, .fine-print { color: var(--muted); font: 400 12px/1.5 var(--sans); }
.back-top { display: inline-block; margin-top: 20px; color: var(--accent-dark); font: 600 12px/1 var(--sans); text-decoration: none; text-transform: uppercase; letter-spacing: .1em; }

@media (max-width: 980px) {
  .contents { inset: 0 auto 0 0; z-index: 110; width: min(88vw, 380px); padding-top: 34px; transform: translateX(-102%); transition: transform .28s ease; box-shadow: 20px 0 45px rgba(0,0,0,.2); }
  .contents.open { transform: translateX(0); }
  .close-button { display: block; }
  .scrim { position: fixed; z-index: 105; inset: 0; width: 100%; background: rgba(16,14,10,.46); opacity: 0; pointer-events: none; transition: opacity .28s ease; }
  .scrim.open { display: block; opacity: 1; pointer-events: auto; }
  main { margin-left: 0; }
  .hero { grid-template-columns: 1.08fr .72fr; padding-inline: 48px; }
  .hero h1 { font-size: clamp(70px, 13vw, 118px); }
  .reader { padding-inline: clamp(26px, 8vw, 72px); }
}

@media (max-width: 700px) {
  .topbar { height: 58px; padding: 0 12px; }
  .wordmark { font-size: 15px; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding: 105px 24px 72px; gap: 48px; }
  .hero-copy { display: contents; }
  .hero .eyebrow { order: 0; }
  .hero h1 { order: 1; margin-bottom: 0; font-size: clamp(58px, 16vw, 72px); letter-spacing: -.055em; }
  .hero-deck { order: 3; font-size: 22px; }
  .hero-meta { order: 4; margin-bottom: 0; }
  .begin { order: 5; }
  .cover-frame { order: 2; width: min(86%, 390px); margin: -2px auto 6px; }
  .contents-inline { display: block; padding: 78px 24px; background: var(--paper-soft); }
  .inline-heading { margin-bottom: 34px; }
  .contents-inline h2 { margin: 0; max-width: 520px; font-size: 46px; line-height: .96; font-weight: 500; letter-spacing: -.035em; }
  .contents-inline a { display: grid; grid-template-columns: 30px 1fr; gap: 8px; padding: 13px 0; border-top: 1px solid var(--line); text-decoration: none; }
  .contents-inline .toc-copy strong { font-size: 17px; }
  .contents-inline .toc-copy small { font-size: 11px; }
  .reader { padding: 0 24px; }
  .chapter { padding-top: 82px; }
  .chapter-header { margin-bottom: 40px; }
  .chapter h1 { font-size: clamp(46px, 14vw, 64px); }
  .chapter-deck { font-size: 19px; }
  .chapter > p, .chapter > blockquote, .chapter > ol, .chapter > ul, .chapter > h2 { font-size: calc(var(--reading-size) - 2px); }
  .chapter img { margin-top: 34px; max-height: 64vh; }
  .web-colophon { margin-top: 90px; padding: 72px 0 80px; }
}

@media print {
  .topbar, .contents, .progress, .scrim, .contents-inline, .begin, .back-top { display: none !important; }
  main { margin: 0; }
  .hero { min-height: 0; padding: 1cm; grid-template-columns: 1fr .55fr; page-break-after: always; }
  .hero h1 { font-size: 72pt; }
  .reader { max-width: none; padding: 0 1cm; }
  .chapter { page-break-before: always; }
  a { color: inherit !important; text-decoration: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}