:root {
  --ink: #251b15;
  --muted: #6f5d4f;
  --paper: #f6efe2;
  --paper-2: #fffaf0;
  --panel: rgba(255,250,240,0.86);
  --panel-solid: #fff8ea;
  --line: rgba(64, 42, 28, 0.18);
  --accent: #8b4f2f;
  --accent-dark: #5c321f;
  --gold: #c19554;
  --green: #39483a;
  --shadow: 0 24px 70px rgba(50, 31, 18, 0.16);
  --radius: 26px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(193,149,84,0.20), transparent 32rem),
    radial-gradient(circle at 90% 20%, rgba(139,79,47,0.16), transparent 28rem),
    linear-gradient(135deg, #efe0c8 0%, #f8efdc 46%, #e8d1b3 100%);
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1.55;
  min-height: 100vh;
}

.paper-noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: .18;
  background-image:
    linear-gradient(rgba(255,255,255,.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.25) 1px, transparent 1px);
  background-size: 47px 47px, 53px 53px;
  mix-blend-mode: soft-light;
  z-index: -1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 52px);
  border-bottom: 1px solid var(--line);
  background: rgba(246,239,226,.88);
  backdrop-filter: blur(14px);
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}
.wordmark .mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper-2);
  font-size: 14px;
  letter-spacing: .08em;
}
.wordmark strong { display: block; font-size: 18px; line-height: 1.1; }
.wordmark em { display: block; font-size: 12px; color: var(--muted); font-style: normal; letter-spacing: .08em; text-transform: uppercase; }
.top-nav { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.top-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid transparent;
}
.top-nav a:hover { color: var(--accent-dark); border-color: var(--accent-dark); }

main { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.hero {
  min-height: 78vh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(54px, 8vw, 108px) 0 52px;
}
.eyebrow, .section-label, .card-kicker {
  margin: 0 0 12px;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--accent-dark);
  font-weight: 750;
}
h1, h2, h3 { line-height: 1.05; margin: 0; }
h1 { font-size: clamp(44px, 7vw, 86px); max-width: 850px; letter-spacing: -.045em; }
.hero p { max-width: 720px; color: var(--muted); font-size: 18px; }
.hero .lede { font-size: clamp(20px, 2.4vw, 27px); color: var(--ink); }
.hero-actions, .integration-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid rgba(37,27,21,.22);
  border-radius: 999px;
  background: rgba(255,250,240,.70);
  color: var(--ink);
  text-decoration: none;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
  font-weight: 700;
  cursor: pointer;
}
.btn.primary { background: var(--ink); color: var(--paper-2); border-color: var(--ink); }
.btn.ghost { background: transparent; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 22px rgba(50,31,18,.12); }

.book-object {
  position: relative;
  min-height: 470px;
  display: grid;
  place-items: center;
  perspective: 1300px;
}
.book-cover {
  position: relative;
  z-index: 2;
  width: min(370px, 88vw);
  min-height: 480px;
  padding: 38px;
  border-radius: 12px 28px 28px 12px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.12), transparent),
    linear-gradient(145deg, #402313, #7a4327 52%, #3d2418);
  color: #fff8ea;
  box-shadow: var(--shadow), inset 10px 0 22px rgba(0,0,0,.23), inset -1px 0 0 rgba(255,255,255,.18);
  transform: rotateY(-12deg) rotateZ(-2deg);
  border: 1px solid rgba(255,255,255,.16);
}
.book-cover:before {
  content: "";
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(255,248,234,.35);
  border-radius: 8px 20px 20px 8px;
}
.book-cover span { display:block; font-size: 13px; letter-spacing: .18em; text-transform: uppercase; opacity:.82; }
.book-cover strong { display:block; font-size: 52px; line-height: .98; margin: 94px 0 20px; letter-spacing: -.03em; }
.book-cover em { display:block; font-size: 16px; color: rgba(255,248,234,.74); font-style: normal; }
.book-pages {
  position:absolute;
  width: min(380px, 88vw);
  min-height: 470px;
  border-radius: 10px 28px 28px 10px;
  background: #f4e7cb;
  transform: translateX(22px) rotateY(-10deg) rotateZ(-2deg);
  box-shadow: 12px 20px 50px rgba(50,31,18,.16);
}
.book-pages span { position:absolute; right: 14px; width: 74%; height: 1px; background: rgba(70,50,35,.14); }
.book-pages span:nth-child(1){ top: 70px; } .book-pages span:nth-child(2){ top: 78px; } .book-pages span:nth-child(3){ top: 86px; }

.definition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 20px 0 72px;
}
.definition-card, .map-spine, .meaning-loops, .integration-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 40px rgba(50,31,18,.09);
}
.definition-card { padding: 28px; }
.definition-card h2 { font-size: 28px; margin-bottom: 12px; }
.definition-card p { color: var(--muted); margin-bottom: 0; }
.is { border-top: 4px solid var(--green); }
.isnt { border-top: 4px solid var(--accent); }
.bridge-card { border-top: 4px solid var(--gold); }

.map-spine { padding: clamp(30px, 5vw, 58px); margin: 0 0 42px; }
.map-spine h2, .meaning-loops h2, .integration-panel h2 { font-size: clamp(32px, 4.5vw, 56px); letter-spacing: -.035em; max-width: 900px; }
.map-spine > p, .meaning-loops p, .integration-panel p { color: var(--muted); font-size: 18px; max-width: 900px; }
.spine-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 30px;
}
.spine-flow div {
  background: rgba(255,255,255,.35);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
  min-height: 150px;
}
.spine-flow span { display:block; color: var(--gold); font-family: ui-sans-serif, system-ui, sans-serif; font-weight: 800; margin-bottom: 18px; }
.spine-flow strong { display:block; font-size: 22px; }
.spine-flow em { display:block; color: var(--muted); font-style: normal; margin-top: 6px; }

.route-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 0 0 76px;
}
.route-card {
  padding: 24px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255,250,240,.72);
  cursor: pointer;
  transition: .18s ease;
}
.route-card:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(50,31,18,.11); }
.route-card span { font-family: ui-sans-serif, system-ui, sans-serif; font-size: 12px; text-transform: uppercase; letter-spacing: .14em; color: var(--accent-dark); font-weight: 800; }
.route-card strong { display:block; font-size: 30px; line-height: 1.05; margin: 10px 0; }
.route-card p { color: var(--muted); margin: 0; }
.route-card.featured { background: #33231a; color: var(--paper-2); }
.route-card.featured p, .route-card.featured span { color: rgba(255,248,234,.78); }

.part-shelves { margin: 0 0 80px; }
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 20px;
}
.section-heading h2 { font-size: clamp(36px, 5vw, 64px); letter-spacing: -.04em; }
.section-heading p { color: var(--muted); max-width: 460px; margin: 0; }
.filters {
  position: sticky;
  top: 78px;
  z-index: 10;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 14px;
  margin-bottom: 20px;
  background: rgba(246,239,226,.88);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(12px);
}
.filter {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 10px 16px;
  background: transparent;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-weight: 800;
  cursor: pointer;
}
.filter.active { background: var(--ink); color: var(--paper-2); }
.filter:hover { border-color: var(--line); }
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.chapter-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 380px;
  padding: 24px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255,250,240,.78);
  box-shadow: 0 8px 26px rgba(50,31,18,.07);
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  overflow: hidden;
}
.chapter-card:before {
  content:"";
  position:absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: linear-gradient(var(--gold), var(--accent));
  opacity: .78;
}
.chapter-card:hover, .chapter-card:focus { outline: none; transform: translateY(-4px); box-shadow: 0 18px 42px rgba(50,31,18,.12); background: rgba(255,250,240,.95); }
.chapter-topline, .chapter-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--accent-dark);
  font-weight: 800;
}
.chapter-topline em { font-style: normal; color: var(--muted); }
.chapter-card h3 { font-size: 30px; margin: 24px 0 8px; letter-spacing: -.025em; }
.chapter-card .subtitle { color: var(--accent-dark); font-style: italic; margin: 0 0 12px; }
.chapter-card p:not(.subtitle) { color: var(--muted); margin-top: 0; }
.chapter-footer { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); align-items: end; }
.chapter-footer span { text-transform: none; letter-spacing: 0; font-family: Georgia, serif; font-weight: 400; color: var(--muted); }
.chapter-footer strong { white-space: nowrap; color: var(--ink); }

.meaning-loops { padding: clamp(30px, 5vw, 58px); margin-bottom: 42px; background: linear-gradient(135deg, rgba(255,250,240,.9), rgba(235,219,190,.88)); }
.meaning-loops .quiet-line { color: var(--ink); font-size: 23px; }
.integration-panel {
  padding: clamp(30px, 5vw, 58px);
  margin-bottom: 70px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 28px;
}
.integration-links { flex-direction: column; min-width: 240px; margin-top: 0; }
.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 54px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 14px;
}

.modal { display: none; position: fixed; inset: 0; z-index: 100; }
.modal[aria-hidden="false"] { display: block; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(31,22,16,.62); backdrop-filter: blur(8px); }
.modal-card {
  position: relative;
  width: min(860px, calc(100% - 28px));
  max-height: calc(100vh - 42px);
  overflow: auto;
  margin: 21px auto;
  padding: clamp(28px, 5vw, 54px);
  border-radius: 30px;
  background: var(--panel-solid);
  border: 1px solid rgba(255,255,255,.32);
  box-shadow: 0 30px 100px rgba(0,0,0,.36);
}
.modal-close {
  position: sticky;
  top: 0;
  float: right;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255,250,240,.92);
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
}
.modal-part {
  display: inline-block;
  margin-bottom: 14px;
  font-family: ui-sans-serif, system-ui, sans-serif;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: .15em;
  font-size: 12px;
  font-weight: 850;
}
.modal-card h2 { font-size: clamp(34px, 6vw, 66px); letter-spacing: -.04em; }
.modal-subtitle { font-size: 22px; color: var(--accent-dark); font-style: italic; }
.modal-section { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.modal-section h3 { font-family: ui-sans-serif, system-ui, sans-serif; font-size: 12px; text-transform: uppercase; letter-spacing: .16em; color: var(--accent-dark); margin-bottom: 8px; }
.modal-section p { font-size: 18px; color: var(--muted); margin: 0; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.modal-open { overflow: hidden; }

@media (max-width: 920px) {
  .top-nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .book-object { min-height: 390px; }
  .book-cover, .book-pages { min-height: 380px; }
  .book-cover strong { margin-top: 62px; font-size: 42px; }
  .definition-grid, .spine-flow, .route-strip, .cards-grid, .integration-panel { grid-template-columns: 1fr; }
  .section-heading { display: block; }
  .section-heading p { margin-top: 12px; }
  .filters { border-radius: 22px; top: 70px; }
  .integration-links { min-width: 0; }
}

@media (max-width: 560px) {
  main, .site-footer { width: min(100% - 20px, 1180px); }
  .site-header { padding: 12px 14px; }
  .wordmark strong { font-size: 15px; }
  h1 { font-size: 42px; }
  .hero { padding-top: 36px; }
  .chapter-card { min-height: auto; }
  .two-col { grid-template-columns: 1fr; }
  .modal-card { width: calc(100% - 16px); margin: 8px auto; max-height: calc(100vh - 16px); }
}


/* Integrated reading-room additions */
.book-object { cursor: pointer; }
.book-object:hover .book-cover { transform: rotateY(-18deg) rotateZ(-2deg) translateY(-3px); }
.book-object:focus-visible { outline: 3px solid rgba(122,67,39,.55); outline-offset: 8px; border-radius: 30px; }
.book-cover { transition: transform .35s ease, box-shadow .35s ease; }
.book-hint { text-align: center; margin: -44px 0 0; font-family: ui-sans-serif, system-ui, sans-serif; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-dark); opacity: .85; }
.book-modal { display:none; position: fixed; inset:0; z-index: 110; }
.book-modal[aria-hidden="false"] { display:block; }
.book-modal-card { position: relative; width: min(1120px, calc(100% - 36px)); margin: 4vh auto; max-height: 92vh; overflow:auto; padding: clamp(24px, 4vw, 48px); border-radius: 30px; background: var(--panel-solid); border: 1px solid rgba(255,255,255,.34); box-shadow: 0 30px 100px rgba(0,0,0,.38); }
.book-modal-card h2 { font-size: clamp(30px, 4vw, 54px); letter-spacing: -.04em; }
.toc-spread { margin-top: 26px; display:grid; grid-template-columns: 1fr 1fr; gap: 0; perspective: 1400px; box-shadow: 0 30px 80px rgba(63,43,27,.17); border-radius: 18px; overflow:hidden; background:#f4e7cb; }
.toc-page { min-height: 430px; padding: clamp(24px, 4vw, 42px); background: linear-gradient(90deg, #fff7e8, #f4e7cb); border: 1px solid rgba(92,61,39,.14); }
.toc-left { border-right: 1px solid rgba(92,61,39,.18); box-shadow: inset -18px 0 28px rgba(82,54,34,.08); }
.toc-right { transform-origin: left center; box-shadow: inset 18px 0 28px rgba(82,54,34,.08); }
.toc-spread.is-turning .toc-right { animation: pageTurn .55s ease; }
@keyframes pageTurn { 0%{transform:rotateY(0)} 48%{transform:rotateY(-74deg)} 100%{transform:rotateY(0)} }
.page-label { display:block; font-family: ui-sans-serif, system-ui, sans-serif; color: var(--accent-dark); text-transform: uppercase; letter-spacing:.16em; font-size: 11px; font-weight: 850; margin-bottom: 14px; }
.toc-page h3 { font-size: clamp(28px, 4vw, 46px); margin-bottom: 18px; }
.toc-page ul { list-style: none; margin:0; padding:0; }
.toc-page li { display:flex; justify-content: space-between; gap: 18px; padding: 12px 0; border-bottom: 1px solid rgba(92,61,39,.13); color: var(--muted); font-size: 17px; }
.toc-page li button { all: unset; cursor: pointer; color: var(--ink); font-weight: 800; }
.toc-page li button:hover { text-decoration: underline; }
.toc-page li span { color: var(--accent-dark); font-size: 13px; white-space: nowrap; }
.book-controls { display:flex; flex-wrap:wrap; gap:12px; margin-top: 22px; align-items:center; }
@media (max-width: 760px) { .toc-spread { grid-template-columns: 1fr; } .toc-left { border-right:0; } .toc-page { min-height:auto; } .book-hint { margin-top: 8px; } }


/* V57 inside-manuscript nav cleanup */
.wordmark{color:inherit;text-decoration:none}
.top-more{position:relative;display:inline-block}
.top-more summary{list-style:none;cursor:pointer;font-weight:800;color:inherit;padding:.2rem .25rem}
.top-more summary::-webkit-details-marker{display:none}
.top-more summary:after{content:" ▾";font-size:.72em;opacity:.75}
.top-more-menu{position:absolute;right:0;top:calc(100% + 12px);min-width:225px;padding:10px;border-radius:18px;background:rgba(255,249,239,.98);border:1px solid rgba(44,37,30,.14);box-shadow:0 18px 45px rgba(45,30,18,.18);z-index:100;color:#2c251e}
.top-more-menu a{display:block;padding:10px 12px;border-radius:12px;color:#2c251e;text-decoration:none;white-space:nowrap;font-weight:750}
.top-more-menu a:hover{background:rgba(154,105,55,.12)}
@media(max-width:760px){
  .site-header{gap:.8rem;padding:.75rem .9rem;align-items:center}
  .wordmark em{display:none}
  .top-nav{gap:.75rem;margin-left:auto;font-size:.86rem;white-space:nowrap}
  .top-nav>a:nth-of-type(2){display:none}
  .top-more-menu{position:fixed;right:12px;left:12px;top:58px;min-width:0}
}