:root {
  color-scheme: light;
  --paper: #f6efe2;
  --paper-soft: #fff9ee;
  --ink: #2c211a;
  --muted: #78695d;
  --line: rgba(84, 65, 48, .18);
  --gold: #b88335;
  --rose: #b97868;
  --blue: #6f8795;
  --leaf: #a7663d;
  --mist: #d8d0ca;
  --shadow: 0 18px 60px rgba(57, 42, 28, .18);
  --serif-display: "Cormorant Garamond", "Playfair Display", "Baskerville", "Georgia", serif;
  --serif-body: "Crimson Pro", "EB Garamond", "Lora", "Georgia", serif;
  --sans: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
}

body.dark {
  color-scheme: dark;
  --paper: #141619;
  --paper-soft: #1e2024;
  --ink: #efe7d7;
  --muted: #b7aa9b;
  --line: rgba(239, 231, 215, .16);
  --gold: #d4a862;
  --rose: #c58c83;
  --blue: #87a5b9;
  --leaf: #c48255;
  --mist: #333943;
  --shadow: 0 18px 60px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 8% 12%, rgba(184, 131, 53, .13), transparent 28rem),
    radial-gradient(circle at 90% 18%, rgba(111, 135, 149, .13), transparent 26rem),
    linear-gradient(180deg, var(--paper-soft), var(--paper));
  color: var(--ink);
  font-family: var(--serif-body);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 20;
  padding: .7rem 1rem;
  background: var(--ink);
  color: var(--paper);
}
.skip-link:focus { top: 1rem; }

.progress {
  position: fixed;
  inset: 0 0 auto;
  height: 4px;
  z-index: 50;
  background: transparent;
}
.progress span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--gold), var(--rose), var(--blue));
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) auto auto;
  gap: 1rem;
  align-items: center;
  padding: .75rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper-soft) 84%, transparent);
  backdrop-filter: blur(18px);
}
.brand {
  display: flex;
  align-items: center;
  gap: .65rem;
  min-width: 0;
  font-family: var(--serif-display);
  font-size: clamp(.95rem, 2vw, 1.2rem);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-mark {
  width: 1rem;
  height: 1rem;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
  flex: 0 0 auto;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .2rem .85rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: .86rem;
}
.nav a { padding: .35rem .1rem; }
.nav a:hover { color: var(--ink); }
.controls { display: flex; justify-content: flex-end; gap: .45rem; }
.icon-btn {
  width: 2.15rem;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper-soft) 70%, transparent);
  color: var(--ink);
  cursor: pointer;
}
.icon-btn:hover { border-color: var(--gold); }

.hero {
  position: relative;
  min-height: calc(100vh - 58px);
  display: grid;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: url("assets/watercolor-road.png") center/cover no-repeat;
  filter: saturate(.96) contrast(.98);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--paper) 88%, transparent), transparent 48%, color-mix(in srgb, var(--paper) 30%, transparent)),
    linear-gradient(0deg, var(--paper), transparent 42%);
}
.hero-inner {
  width: min(980px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 8rem) 0 clamp(7rem, 10vw, 9rem);
}
.kicker {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--gold);
  font-size: .75rem;
  margin: 0 0 1rem;
}
h1, h2, h3 {
  font-family: var(--serif-display);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
}
h1 {
  max-width: 12ch;
  font-size: clamp(4rem, 12vw, 9.8rem);
  margin: 0;
}
.subtitle {
  max-width: 43rem;
  font-size: clamp(1.25rem, 3vw, 2.2rem);
  color: color-mix(in srgb, var(--ink) 86%, var(--gold));
  margin: 1rem 0 .7rem;
}
.byline, .note {
  max-width: 50rem;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.15rem);
}
.dedication {
  max-width: 44rem;
  margin-top: 1.5rem;
  color: color-mix(in srgb, var(--ink) 78%, var(--gold));
  font-style: italic;
  font-size: clamp(1.15rem, 2vw, 1.38rem);
}
.hero-actions, .chapter-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 2rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: .78rem 1.15rem;
  border: 1px solid var(--line);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: .9rem;
}
.btn.secondary { background: transparent; color: var(--ink); }

.page {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 6rem) 0;
}
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: end;
  margin-bottom: 2rem;
}
.section-head h2 {
  font-size: clamp(2.6rem, 6vw, 5.2rem);
  margin: 0;
}
.section-head p { color: var(--muted); max-width: 42rem; margin: .7rem 0 0; }

.toc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: .9rem;
}
.chapter-card, .memory-card, .result-card {
  position: relative;
  min-height: 12rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--paper-soft) 88%, transparent), color-mix(in srgb, var(--mist) 28%, transparent)),
    var(--paper-soft);
  padding: 1.1rem;
  box-shadow: 0 8px 26px rgba(40, 28, 18, .06);
  overflow: hidden;
}
.chapter-card::after {
  content: attr(data-motif);
  position: absolute;
  right: .9rem;
  bottom: .7rem;
  color: color-mix(in srgb, var(--gold) 45%, transparent);
  font-family: var(--serif-display);
  font-size: 4rem;
  line-height: 1;
}
.chapter-card span, .meta {
  font-family: var(--sans);
  color: var(--gold);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .12em;
}
.chapter-card h3, .memory-card h3, .result-card h3 {
  margin: .65rem 0 .6rem;
  font-size: 1.65rem;
}
.chapter-card p, .memory-card p, .result-card p { color: var(--muted); margin: 0; }

.reader-shell {
  position: relative;
  width: min(980px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(2.4rem, 6vw, 5rem) 0;
}
.chapter-hero {
  position: relative;
  min-height: 22rem;
  display: grid;
  align-items: end;
  padding: clamp(2rem, 6vw, 4rem);
  margin-bottom: 2rem;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, var(--theme-a), var(--theme-b)),
    var(--paper-soft);
}
.chapter-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 75% 22%, rgba(255,255,255,.28), transparent 9rem),
    linear-gradient(110deg, transparent 0 50%, rgba(255,255,255,.14) 50.2% 51%, transparent 51.2%);
  mix-blend-mode: soft-light;
}
.chapter-hero.chapter-1 {
  background:
    linear-gradient(180deg, rgba(255, 247, 221, .72), rgba(246, 216, 141, .18) 42%, rgba(217, 154, 99, .34)),
    radial-gradient(circle at 18% 16%, rgba(255, 246, 198, .86), transparent 12rem),
    linear-gradient(135deg, var(--theme-a), var(--theme-b));
}
.chapter-hero.chapter-1::before {
  background:
    linear-gradient(90deg, rgba(101, 73, 42, .16) 0 1px, transparent 1px 18%),
    linear-gradient(0deg, transparent 0 58%, rgba(255,255,255,.3) 58.2% 59%, transparent 59.2%),
    radial-gradient(circle at 80% 30%, rgba(255,255,255,.28), transparent 8rem);
  opacity: .78;
}
.chapter-hero.chapter-1::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 0;
  height: 34%;
  background:
    linear-gradient(90deg, transparent 0 9%, rgba(87, 63, 43, .2) 9.4% 10.4%, transparent 10.8% 23%, rgba(87, 63, 43, .17) 23.4% 24.2%, transparent 24.6%),
    linear-gradient(180deg, transparent 0 42%, rgba(96, 67, 43, .18) 42.4% 44%, transparent 44.4%),
    linear-gradient(135deg, transparent 0 46%, rgba(120, 81, 45, .16) 46.2% 47.2%, transparent 47.4%);
  clip-path: polygon(0 70%, 16% 42%, 30% 58%, 45% 30%, 64% 58%, 82% 36%, 100% 68%, 100% 100%, 0 100%);
  opacity: .72;
}
.chapter-hero h2 {
  position: relative;
  font-size: clamp(3.1rem, 8vw, 7rem);
  max-width: 11ch;
  margin: .55rem 0 0;
}
.chapter-hero .meta { position: relative; color: color-mix(in srgb, var(--ink) 75%, var(--gold)); }
.chapter-body {
  background: color-mix(in srgb, var(--paper-soft) 58%, transparent);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: clamp(1.4rem, 5vw, 4.5rem);
}
.chapter-body p {
  margin: 0 0 1rem;
  font-size: clamp(1.16rem, 2.1vw, 1.36rem);
  line-height: 1.78;
}
.chapter-body p:first-child::first-letter {
  float: left;
  font-family: var(--serif-display);
  font-size: 4.6rem;
  line-height: .82;
  padding-right: .45rem;
  color: var(--gold);
}
.pullquote {
  margin: 2.3rem auto;
  padding: 1.5rem 0 1.5rem 1.25rem;
  border-left: 2px solid var(--gold);
  color: color-mix(in srgb, var(--ink) 82%, var(--rose));
  font-family: var(--serif-display);
  font-size: clamp(1.8rem, 5vw, 3.6rem);
  line-height: 1.08;
}
.letter {
  margin: 1.7rem 0;
  padding: 1.2rem 1.4rem;
  background: color-mix(in srgb, var(--paper) 76%, white);
  border: 1px solid var(--line);
  box-shadow: 0 10px 24px rgba(47, 34, 24, .08);
  font-style: italic;
}
.chapter-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .8rem;
  margin-top: 1rem;
}
.chapter-nav a {
  min-height: 4.8rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper-soft) 74%, transparent);
  font-family: var(--sans);
}
.chapter-nav a:last-child { text-align: right; }

.timeline {
  position: relative;
  display: grid;
  gap: 1rem;
}
.timeline::before {
  content: "";
  position: absolute;
  left: .75rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line);
}
.timeline-item {
  position: relative;
  padding-left: 2.4rem;
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: .42rem;
  top: .45rem;
  width: .7rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--gold);
}

.search-panel {
  display: grid;
  gap: 1rem;
}
.search-panel input {
  width: 100%;
  min-height: 3.6rem;
  padding: 0 1rem;
  border: 1px solid var(--line);
  background: var(--paper-soft);
  color: var(--ink);
  font-size: 1.2rem;
}
.results { display: grid; gap: .8rem; }

.memory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.ending {
  min-height: calc(100vh - 58px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 2rem;
  background:
    linear-gradient(180deg, transparent, color-mix(in srgb, var(--gold) 18%, transparent)),
    url("assets/watercolor-road.png") center/cover no-repeat;
}
.ending blockquote {
  max-width: 850px;
  margin: 0;
  font-family: var(--serif-display);
  font-size: clamp(2.8rem, 7vw, 6.8rem);
  line-height: 1.02;
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
.ambient span {
  position: absolute;
  top: -4rem;
  width: .5rem;
  height: 1.1rem;
  background: color-mix(in srgb, var(--leaf) 58%, transparent);
  border-radius: 80% 0 80% 0;
  animation: fall 18s linear infinite;
  opacity: .45;
}
.ambient span:nth-child(1) { left: 8%; animation-delay: -2s; }
.ambient span:nth-child(2) { left: 28%; animation-delay: -9s; }
.ambient span:nth-child(3) { left: 51%; animation-delay: -14s; }
.ambient span:nth-child(4) { left: 73%; animation-delay: -5s; }
.ambient span:nth-child(5) { left: 91%; animation-delay: -11s; }
@keyframes fall {
  from { transform: translate3d(0, -5vh, 0) rotate(0deg); }
  to { transform: translate3d(-8vw, 110vh, 0) rotate(360deg); }
}

.reveal { animation: rise .7s ease both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

body.immersive .topbar { transform: translateY(-100%); }
body.immersive .reader-shell { width: min(820px, calc(100% - 1rem)); }

@media (max-width: 820px) {
  .topbar { grid-template-columns: 1fr auto; }
  .nav { grid-column: 1 / -1; justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; }
  .section-head { grid-template-columns: 1fr; }
  .chapter-nav { grid-template-columns: 1fr; }
  .chapter-nav a:last-child { text-align: left; }
  h1 { font-size: clamp(3.2rem, 16vw, 5.8rem); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}