/* ============ TOKENS ============ */
:root {
  --paper: #FBF8F3;
  --paper-alt: #F2ECE4;
  --paper-line: #E4DCD0;
  --blush: #F5E8E1;
  --blush-line: #E9D5C9;
  --ink: #1A1712;
  --ink-soft: #5B5348;
  --ink-faint: #8A8073;
  --maroon: #8C1D26;
  --maroon-deep: #6E1620;
  --maroon-bright: #A6242F;
  --rule: #A6A29A;
  --dark: #16130F;
  --dark-alt: #1F1B15;
  --dark-line: rgba(251,248,243,0.14);
  --dark-ink-soft: #C4B9AA;

  --shadow: 0 18px 40px -20px rgba(26,23,18,0.35);
  --serif: "EB Garamond", "Iowan Old Style", Georgia, serif;
  --sans: "Work Sans", "Segoe UI", system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1B1613;
    --paper-alt: #241D18;
    --paper-line: #362C24;
    --blush: #241A17;
    --blush-line: #3A2A24;
    --ink: #F1EAE0;
    --ink-soft: #C4B9AA;
    --ink-faint: #90867A;
    --maroon: #E2828A;
    --maroon-deep: #EFA1A7;
    --maroon-bright: #EFA1A7;
    --rule: #4E463C;
    --dark: #0E0C0A;
    --dark-alt: #17140F;
    --shadow: 0 18px 40px -20px rgba(0,0,0,0.6);
  }
}
:root[data-theme="dark"] {
  --paper: #1B1613;
  --paper-alt: #241D18;
  --paper-line: #362C24;
  --blush: #241A17;
  --blush-line: #3A2A24;
  --ink: #F1EAE0;
  --ink-soft: #C4B9AA;
  --ink-faint: #90867A;
  --maroon: #E2828A;
  --maroon-deep: #EFA1A7;
  --maroon-bright: #EFA1A7;
  --rule: #4E463C;
  --dark: #0E0C0A;
  --dark-alt: #17140F;
  --shadow: 0 18px 40px -20px rgba(0,0,0,0.6);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 56px); }
.measure { max-width: 62ch; }
.center-block { margin-left: auto; margin-right: auto; }
.center { text-align: center; }

h1, h2, h3 { text-wrap: balance; margin: 0; font-weight: 600; }

.eyebrow {
  font-family: var(--sans); font-weight: 600; font-size: 12.5px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--maroon); margin: 0 0 14px;
}
.eyebrow.dark { color: var(--maroon-bright); }

.section-title { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.18; margin-bottom: 14px; }
.section-title.light { color: var(--paper); }
.section-sub { font-family: var(--serif); font-style: italic; color: var(--ink-soft); font-size: 17px; margin-bottom: 8px; }
.section-sub.light-soft { color: var(--dark-ink-soft); }

.section-pad { padding: clamp(64px, 9vw, 100px) 0; }
.divider { border: 0; border-top: 1px solid var(--paper-line); margin: 0; }

/* ============ TEXTURE ============ */
.texture {
  position: absolute; inset: 0; pointer-events: none;
  background-image: repeating-linear-gradient(0deg, rgba(140,29,38,0.05) 0, rgba(140,29,38,0.05) 1px, transparent 1px, transparent 44px),
    repeating-linear-gradient(90deg, rgba(140,29,38,0.035) 0, rgba(140,29,38,0.035) 1px, transparent 1px, transparent 44px);
  opacity: 0.6;
}

/* ============ NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--paper-line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 14px; }
.nav-mark { flex-shrink: 0; display: flex; align-items: center; }
.nav-mark img { height: 22px; width: auto; }
.nav-links {
  display: flex; gap: 14px; list-style: none; margin: 0; padding: 0; font-family: var(--sans); font-size: 11px; font-weight: 600;
  overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; min-width: 0;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a { text-decoration: none; color: var(--ink-soft); white-space: nowrap; }
.nav-links a:hover { color: var(--maroon); }
@media (min-width: 480px) { .nav-links { gap: 18px; font-size: 12px; } }
@media (min-width: 640px) { .nav-links { gap: 22px; font-size: 13px; } }

/* ============ HERO ============ */
.hero { position: relative; overflow: hidden; padding: clamp(56px, 9vw, 96px) 0 clamp(48px, 7vw, 76px); }
.hero-inner { position: relative; max-width: 760px; }
.hero-title { font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 4px 0 16px; }
.hero-subtitle { font-family: var(--serif); font-style: italic; font-size: clamp(17px, 2vw, 20px); color: var(--ink-soft); margin-bottom: 18px; max-width: 56ch; }
.hero-byline { font-family: var(--sans); font-size: 13px; letter-spacing: 0.04em; color: var(--ink-faint); margin-bottom: 28px; }
.hero-byline span { font-weight: 700; letter-spacing: 0.08em; color: var(--ink-soft); }
.hero-cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; }
.hero-meta { font-family: var(--sans); font-size: 13px; color: var(--ink-faint); }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans); font-weight: 700; font-size: 13.5px; letter-spacing: 0.03em;
  padding: 13px 22px; border-radius: 3px; text-decoration: none; cursor: pointer; border: 1.5px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-maroon { background: var(--maroon); color: var(--paper); }
.btn-maroon:hover { background: var(--maroon-deep); box-shadow: var(--shadow); }
.btn-outline { background: transparent; border-color: var(--rule); color: var(--ink); }
.btn-outline:hover { border-color: var(--maroon); color: var(--maroon); }
.btn-cta { background: var(--paper); color: var(--maroon-deep); margin-bottom: 18px; }
.btn-cta:hover { background: var(--paper-alt); box-shadow: 0 18px 40px -18px rgba(0,0,0,0.4); }

/* ============ ABOUT / COVER + STATS ============ */
.about-cover-wrap { display: flex; justify-content: center; padding-top: clamp(48px, 7vw, 72px); }
.cover-frame { width: min(320px, 70vw); }
.cover-frame img { border-radius: 2px; box-shadow: var(--shadow); border: 1px solid var(--paper-line); }

.stat-bar { background: var(--dark); color: var(--paper); margin-top: clamp(48px, 7vw, 72px); }
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px) { .stat-grid { grid-template-columns: repeat(4, 1fr); } }
.stat { text-align: center; padding: 34px 16px; border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); display: flex; flex-direction: column; gap: 6px; }
.stat:nth-child(2n) { border-right: none; }
@media (min-width: 640px) {
  .stat:nth-child(2n) { border-right: 1px solid var(--dark-line); }
  .stat:last-child { border-right: none; }
  .stat { border-bottom: none; }
}
.stat-num { font-family: var(--serif); font-weight: 700; font-size: clamp(30px, 4vw, 40px); }
.stat-label { font-family: var(--sans); font-size: 11px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--dark-ink-soft); }

.about-copy { padding-top: clamp(56px, 8vw, 88px); max-width: 780px; }
.drop-cap::first-letter {
  font-family: var(--serif); font-weight: 700; font-size: 3.6em; float: left; line-height: 0.82;
  padding: 0.04em 0.09em 0 0; color: var(--maroon);
}
.about-copy p { margin: 0 0 18px; }
.scope-tag { font-family: var(--sans); font-size: 11.5px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-faint); margin-top: 30px; }
#about { padding-bottom: clamp(56px, 8vw, 88px); }

/* ============ INSIDE THE GUIDE / ACCORDION ============ */
.parts-grid { display: grid; gap: 18px; margin-top: 44px; }
@media (min-width: 760px) { .parts-grid { grid-template-columns: 1fr 1fr; } }

.part-card { border: 1px solid var(--paper-line); border-radius: 4px; background: var(--paper); overflow: hidden; }
.part-toggle {
  display: flex; flex-direction: column; align-items: flex-start; gap: 8px; width: 100%; text-align: left;
  background: none; border: 0; padding: 24px; cursor: pointer; font-family: inherit; color: inherit;
}
.part-eyebrow { font-family: var(--sans); font-weight: 700; font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--maroon); }
.part-title { font-family: var(--serif); font-weight: 700; font-size: 20px; line-height: 1.28; }
.part-desc { font-family: var(--sans); font-size: 14px; line-height: 1.5; color: var(--ink-soft); }
.part-foot { display: flex; align-items: center; justify-content: space-between; width: 100%; margin-top: 6px; }
.chapter-count { font-family: var(--sans); font-size: 12px; font-weight: 600; color: var(--ink-faint); }
.chevron { color: var(--maroon); font-size: 13px; transition: transform 0.25s ease; }
.part-card.open .chevron { transform: rotate(180deg); }

.part-panel { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.chapter-list { margin: 0; padding: 0 24px 22px; list-style: none; display: flex; flex-direction: column; gap: 8px; border-top: 1px solid var(--paper-line); padding-top: 16px; }
.chapter-list li { position: relative; padding-left: 16px; font-family: var(--sans); font-size: 13.5px; color: var(--ink-faint); font-style: italic; }
.chapter-list li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 6px; height: 1px; background: var(--rule); }

/* ============ COMPANION RESOURCES ============ */
.dark-section { background: var(--dark); color: var(--paper); position: relative; }
.companion-grid { display: grid; gap: 20px; margin-top: 40px; }
@media (min-width: 760px) { .companion-grid { grid-template-columns: 1fr 1fr; } }
.companion-card { background: var(--dark-alt); border: 1px solid var(--dark-line); border-radius: 4px; padding: 30px; }
.companion-eyebrow { font-family: var(--sans); font-weight: 700; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--maroon-bright); margin-bottom: 12px; }
.companion-title { font-family: var(--serif); font-size: 22px; margin-bottom: 14px; }
.companion-body { font-size: 15.5px; color: var(--dark-ink-soft); margin-bottom: 20px; }
.companion-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.companion-list li { position: relative; padding-left: 18px; font-family: var(--sans); font-size: 14px; line-height: 1.5; color: var(--dark-ink-soft); }
.companion-list li::before { content: "\2014"; position: absolute; left: 0; top: 0; color: var(--maroon-bright); }

.quote-bar { background: #0F0D0A; margin-top: clamp(48px, 7vw, 72px); padding: 40px 0; }
.quote-bar-text { font-family: var(--serif); font-style: italic; font-size: clamp(17px, 2vw, 21px); line-height: 1.5; text-align: center; color: var(--paper); max-width: 820px; }

/* ============ EARLY PRAISE ============ */
.blush-section { background: var(--blush); }
.pullquote-grid { display: grid; gap: 16px; margin-top: 44px; }
@media (min-width: 720px) { .pullquote-grid { grid-template-columns: 1fr 1fr; } }
.pullquote {
  margin: 0; padding: 22px 24px; background: var(--paper); border: 1px solid var(--blush-line); border-radius: 4px;
  font-family: var(--serif); font-style: italic; font-size: 15.5px; line-height: 1.5; color: var(--ink);
}
.qmark { color: var(--maroon); font-weight: 700; margin-right: 2px; }
@media (min-width: 720px) { .pullquote.wide { grid-column: 1 / -1; max-width: 50%; } }

.testimonial-grid { display: grid; gap: 18px; margin-top: 22px; }
@media (min-width: 720px) { .testimonial-grid { grid-template-columns: 1fr 1fr; } }
.testimonial { background: var(--paper); border-left: 3px solid var(--maroon); padding: 24px 26px; border-radius: 2px; box-shadow: 0 10px 26px -18px rgba(26,23,18,0.25); }
.testimonial p:first-child { margin: 0 0 12px; font-size: 15.5px; line-height: 1.55; }
.testimonial-attrib { margin: 0; font-family: var(--sans); font-size: 11.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint); }
@media (min-width: 720px) { .testimonial.wide { grid-column: 1 / -1; max-width: 50%; } }

/* ============ AUTHOR ============ */
.author-grid { display: grid; gap: 32px; align-items: start; }
@media (min-width: 640px) { .author-grid { grid-template-columns: auto 1fr; } }
.author-avatar {
  width: 108px; height: 108px; border-radius: 50%; background: var(--dark); color: var(--paper);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-weight: 700; font-size: 30px; letter-spacing: 0.02em;
  border: 4px solid var(--paper-alt);
}
.author-name { font-size: clamp(24px, 3vw, 30px); margin-bottom: 6px; }
.author-role { font-family: var(--sans); font-weight: 700; font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--maroon); margin: 0 0 16px; }
.author-bio { max-width: 62ch; color: var(--ink); font-size: 16.5px; }

/* ============ FINAL CTA ============ */
.cta-band { background: linear-gradient(165deg, var(--maroon-bright), var(--maroon-deep) 70%); color: var(--paper); }
.cta-inner { padding: clamp(56px, 8vw, 88px) 0; text-align: center; display: flex; flex-direction: column; align-items: center; }
.cta-title { font-size: clamp(28px, 4vw, 40px); margin-bottom: 16px; }
.cta-meta { font-size: 15.5px; color: rgba(251,248,243,0.85); max-width: 58ch; margin-bottom: 30px; }
.cta-note { font-family: var(--sans); font-size: 12.5px; color: rgba(251,248,243,0.7); }

/* ============ FOOTER ============ */
footer { background: var(--dark); color: rgba(251,248,243,0.7); }
.footer-inner { padding: 26px 0; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; font-family: var(--sans); font-size: 12.5px; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }