/* The web edition of Nature's Memory (site/book/, built by scripts/build-book.ts). Shared look in jt.css. */

.jt-app.bk {
  max-width: 860px;
  min-width: 0;
}

.bk-home {
  text-decoration: none;
}

.bk-crumb {
  margin: 0;
  padding: 10px 18px;
  border-bottom: var(--line) solid var(--ink);
  background: repeating-linear-gradient(45deg, var(--paper) 0 10px, var(--stripe) 10px 20px);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

/* Fingerprints must read exactly as sha256sum prints them. */
.bk-hash {
  text-transform: none;
  overflow-wrap: anywhere;
  background: none;
  padding: 0;
}

.bk-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 12px 18px;
  border-bottom: var(--line-thin) solid var(--ink);
  font-size: 13px;
}

.bk-nav:last-of-type {
  border-top: var(--line-thin) solid var(--ink);
  border-bottom: 0;
}

.bk-nav a {
  font-weight: 700;
}

.bk-nav__next {
  text-align: right;
}

/* Reading text: a serif for long-form comfort, inside the brutalist frame. */
.bk-text {
  padding: 28px clamp(18px, 6vw, 64px) 36px;
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 19px;
  line-height: 1.65;
  overflow-wrap: break-word;
}

.bk-text h1 {
  margin: 0 0 28px;
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.bk-text h2 {
  margin: 40px 0 12px;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.2;
}

.bk-text h3 {
  margin: 32px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
}

.bk-text p,
.bk-text ul,
.bk-text ol {
  margin: 0 0 18px;
}

.bk-text li + li {
  margin-top: 6px;
}

.bk-text blockquote {
  margin: 0 0 18px;
  padding: 4px 0 4px 18px;
  border-left: var(--line) solid var(--ink);
}

.bk-text table {
  display: block;
  width: 100%;
  margin: 0 0 24px;
  overflow-x: auto;
  border-collapse: collapse;
  font-family: var(--font-display);
  font-size: 14px;
  line-height: 1.4;
}

.bk-text th,
.bk-text td {
  padding: 8px 10px;
  border: 2px solid var(--ink);
  text-align: left;
  vertical-align: top;
}

.bk-text th {
  background: var(--stripe);
}

.bk-text code {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

.bk-text hr {
  margin: 32px 0;
  border: 0;
  border-top: var(--line-thin) solid var(--ink);
}

.bk-figure {
  margin: 0 0 24px;
  padding: 14px 16px;
  border: var(--line-thin) dashed var(--ink);
  background: var(--stripe);
  font-family: var(--font-display);
  font-size: 15px;
  line-height: 1.5;
}

.bk-figure p {
  margin: 0;
}

.bk-figure__label {
  margin-bottom: 6px !important;
  font: 700 12px/1 var(--font-mono);
  text-transform: uppercase;
}

.bk-echo {
  margin: 0 18px 24px;
  padding: 12px 14px;
  border: var(--line-thin) solid var(--ink);
  background: var(--accent);
  font-size: 13px;
  line-height: 1.5;
}

/* Cover and contents */

.bk-cover {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 36px clamp(18px, 6vw, 64px);
  border-bottom: var(--line) solid var(--ink);
  background: var(--accent);
}

.bk-cover__title {
  font-size: clamp(44px, 9vw, 88px);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.bk-cover__sub {
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.2;
}

.bk-cover__by {
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
}

.bk-cover__meta {
  font-size: 13px;
}

.bk-cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.bk-contents {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 28px 18px 32px;
}

.bk-part__title {
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: var(--line-thin) solid var(--ink);
  font: 700 13px/1.3 var(--font-mono);
  text-transform: uppercase;
}

.bk-toc {
  margin: 0;
  padding: 0;
  list-style: none;
}

.bk-toc a {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 9px 6px;
  border-bottom: 2px solid var(--stripe);
  font-size: 17px;
  text-decoration: none;
}

.bk-toc a:hover {
  background: var(--accent);
}

.bk-toc__n,
.bk-toc__w {
  font-size: 13px;
}

.bk-foot {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
  padding: 12px 18px;
  border-top: var(--line) solid var(--ink);
  font-size: 12px;
  line-height: 1.5;
}

.bk-foot p {
  margin: 0;
}