/* The Field Manuals — pages.css : book detail + about page */

.crumbs { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.04em; color: var(--muted); padding-top: 28px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.crumbs a:hover { color: var(--text); }
.crumbs .sep { opacity: 0.5; }

/* ---------- Book detail hero ---------- */
.book-hero { padding-block: 28px clamp(48px, 7vw, 88px); }
.book-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(36px, 6vw, 80px); align-items: start; }
.book-cover-col { position: sticky; top: 92px; }
.book-cover-col .cover { width: 100%; max-width: 340px; }
.book-cover-shadow { filter: drop-shadow(0 30px 50px oklch(0.17 0.012 264 / 0.28)); }

.book-acr { font-family: var(--mono); font-size: clamp(13px, 1.4vw, 15px); letter-spacing: 0.16em; text-transform: uppercase; color: oklch(0.5 0.13 var(--hue)); font-weight: 500; }
.book-title { font-size: clamp(34px, 5vw, 60px); letter-spacing: -0.03em; margin-top: 14px; }
.book-edition { font-family: var(--mono); font-size: 13px; color: var(--muted); margin-top: 10px; letter-spacing: 0.04em; }
.book-best {
  display: inline-flex; align-items: center; gap: 7px; margin-top: 14px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 500;
  padding: 7px 13px; border-radius: 999px; color: oklch(0.42 0.08 70);
  background: linear-gradient(135deg, oklch(0.93 0.06 85), oklch(0.9 0.07 70));
  border: 1px solid oklch(0.82 0.09 75);
}
.book-best svg { width: 13px; height: 13px; color: oklch(0.62 0.14 70); }
.book-rating-row { display: flex; align-items: center; gap: 16px; margin-top: 22px; flex-wrap: wrap; }
.book-tagline { font-size: clamp(19px, 2vw, 24px); line-height: 1.4; margin-top: 26px; letter-spacing: -0.01em; max-width: 30ch; }
.book-blurb { font-size: 18px; color: var(--text); margin-top: 22px; max-width: 56ch; }
.book-long { margin-top: 18px; display: grid; gap: 16px; color: var(--muted); font-size: 17px; max-width: 60ch; }
.book-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; align-items: center; }
.book-cta .price-note { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }

.book-facts { margin-top: 40px; border-top: 1px solid var(--line); padding-top: 28px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px 32px; max-width: 560px; }
.fact .fk { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.fact .fv { font-size: 15px; margin-top: 5px; }
.whofor { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.whofor .wf { font-size: 13px; padding: 6px 12px; border-radius: 999px; background: oklch(0.6 0.13 var(--hue) / 0.1); color: oklch(0.42 0.13 var(--hue)); border: 1px solid oklch(0.6 0.13 var(--hue) / 0.22); }

/* accent band atop the page based on book hue */
.book-band { height: 4px; background: linear-gradient(90deg, oklch(0.6 0.16 var(--hue)), oklch(0.6 0.16 var(--hue) / 0.2)); }

/* book reviews */
.book-reviews { background: var(--paper-2); border-top: 1px solid var(--line); }
.brev-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; margin-top: 32px; }
.brev { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.brev .review-stars { color: var(--star); letter-spacing: 2px; }
.brev blockquote { margin: 12px 0 0; font-size: 16px; line-height: 1.55; }
.brev figcaption { margin-top: 14px; font-size: 13px; color: var(--muted); font-family: var(--mono); }
.brev figcaption strong { color: var(--text); font-family: var(--sans); }

/* related */
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 32px; }
.rel { text-align: left; }
.rel .cover { margin-bottom: 14px; }
.rel .r-acr { font-family: var(--mono); font-weight: 600; font-size: 15px; }
.rel .r-title { font-size: 13.5px; color: var(--muted); margin-top: 2px; }

@media (max-width: 860px) {
  .book-grid { grid-template-columns: 1fr; }
  .book-cover-col { position: static; max-width: 280px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

/* =================== ABOUT PAGE =================== */
.about-hero { background: var(--ink); color: #fff; position: relative; overflow: hidden; border-bottom: 1px solid var(--ink-line); }
.about-hero::after { content: ""; position: absolute; top: -30%; left: -10%; width: 55%; height: 90%; background: radial-gradient(circle, oklch(0.55 0.17 300 / 0.25), transparent 65%); pointer-events: none; }
.about-hero .grid { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: clamp(36px, 6vw, 72px); align-items: center; padding-block: clamp(56px, 8vw, 96px); position: relative; z-index: 2; }
.about-photo { aspect-ratio: 4/5; border-radius: var(--radius-lg); border: 1px solid var(--ink-line); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; color: oklch(1 0 0 / 0.5); background-image: repeating-linear-gradient(135deg, oklch(0.22 0.015 264) 0 14px, oklch(0.19 0.012 264) 14px 28px); }
.about-photo svg { width: 48px; height: 48px; }
.about-photo .cap { font-family: var(--mono); font-size: 12px; letter-spacing: 0.05em; }
.about-hero h1 { font-size: clamp(34px, 5vw, 60px); letter-spacing: -0.03em; margin-top: 16px; }
.about-hero .role { font-family: var(--mono); font-size: 14px; color: var(--brand-ink); letter-spacing: 0.04em; margin-top: 18px; }
.about-hero .intro { color: var(--ink-soft); font-size: clamp(17px, 1.6vw, 20px); margin-top: 18px; max-width: 54ch; line-height: 1.55; }

.about-highlights { background: var(--paper-2); border-bottom: 1px solid var(--line); }
.ah-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding-block: 48px; }
.ah .k { font-size: clamp(34px, 4.5vw, 52px); font-weight: 600; letter-spacing: -0.03em; color: var(--brand); }
.ah .v { color: var(--muted); margin-top: 6px; font-size: 16px; max-width: 28ch; }

.about-body .grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(40px, 6vw, 80px); }
.bio-col p { font-size: 18px; color: var(--text); margin-bottom: 20px; line-height: 1.65; }
.bio-col p:first-of-type { font-size: 21px; color: var(--text); }
.side-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-sm); }
.side-card + .side-card { margin-top: 20px; }
.side-card h3 { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.side-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 12px; }
.side-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; line-height: 1.4; }
.side-list li::before { content: ""; flex: none; width: 7px; height: 7px; border-radius: 50%; margin-top: 8px; background: var(--brand); }
.cred-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.cred-chips .c { font-family: var(--mono); font-size: 12px; padding: 7px 12px; border-radius: 7px; background: var(--paper-2); border: 1px solid var(--line); }

.about-cta { background: var(--ink); color: #fff; text-align: center; }
.about-cta .inner { padding-block: clamp(56px, 8vw, 96px); }
.about-cta h2 { font-size: clamp(28px, 4vw, 46px); }
.about-cta p { color: var(--ink-soft); margin-top: 14px; font-size: 18px; }

@media (max-width: 860px) {
  .about-hero .grid { grid-template-columns: 1fr; }
  .about-photo { max-width: 280px; }
  .about-body .grid { grid-template-columns: 1fr; }
  .ah-grid { grid-template-columns: 1fr; gap: 28px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}