/* ============================================================
   Esoteric EA — Plum & Rose palette
   Esoteric EA design system v1
   ============================================================ */

/* ── Design tokens ─────────────────────────────────────────── */
:root {
  --color-bg:                #2A111B;
  --color-bg-warm:           #3B1A28;
  --color-pane:              #F2E3DA;
  --color-pane-deep:         #E0CBBA;
  --color-ink:               #F2E3DA;
  --color-ink-soft:          #BFA295;
  --color-ink-on-pane:       #3B1A28;
  --color-ink-on-pane-soft:  #6B4451;
  --color-brass:             #D29577;
  --color-brass-deep:        #A77052;
  --rule-light:              rgba(242,227,218,.16);
  --rule-deep:               rgba(42,17,27,.18);
  --font-serif: "Cormorant Garamond", "EB Garamond", Georgia, serif;
  --font-body:  "Inter", system-ui, -apple-system, sans-serif;
  --font-mono:  "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
}

/* ── Base reset ─────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
}

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

a {
  color: inherit;
}

/* ── Typography — italic em brand move ─────────────────────── */
h1 em, h2 em, h3 em {
  color: var(--color-brass);
  font-style: italic;
}

.on-pane h1 em,
.on-pane h2 em,
.on-pane h3 em {
  color: var(--color-brass-deep);
}

/* ── Utility classes ────────────────────────────────────────── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.hairline {
  height: 1px;
  background: var(--rule-light);
}

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
  background: var(--color-bg);
  padding: 20px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule-light);
}

.site-header__left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-header .wordmark {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 24px;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-ink);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav .nav-item {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-ink);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color .15s;
}

.site-nav .nav-item:hover {
  color: var(--color-brass);
}

.site-nav .nav-item--active {
  background: var(--color-ink);
  color: var(--color-bg);
  padding: 8px 14px;
}

.site-nav .nav-item--active:hover {
  color: var(--color-bg);
}

.nav-numeral {
  opacity: .5;
  font-size: 9px;
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-bg);
  padding: 48px 56px 36px;
  border-top: 1px solid var(--rule-light);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  align-items: flex-start;
  margin-bottom: 40px;
}

.site-footer__wordmark {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 28px;
  color: var(--color-ink);
  text-decoration: none;
  display: block;
  margin-bottom: 12px;
}

.site-footer__desc {
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.55;
  max-width: 320px;
  color: var(--color-ink-soft);
  margin: 0;
}

.site-footer__col-head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-brass);
  display: block;
  margin-bottom: 14px;
}

.site-footer__link {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 17px;
  color: var(--color-ink);
  display: block;
  margin-bottom: 6px;
  text-decoration: none;
}

.site-footer__link:hover {
  color: var(--color-brass);
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-top: 1px solid var(--rule-light);
  padding-top: 20px;
}

.site-footer__bottom-text {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}

.site-footer__bottom-group {
  display: flex;
  align-items: baseline;
  gap: 20px;
}

.site-footer__cookie-link {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

.site-footer__cookie-link:hover {
  color: var(--color-brass);
}

/* ── Reading pane ───────────────────────────────────────────── */
.reading-pane {
  background: var(--color-pane);
  color: var(--color-ink-on-pane);
}

/* ── Home page ──────────────────────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 56px;
  padding: 64px 56px 48px;
  align-items: flex-start;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: 108px;
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin: 0;
}

.hero__lede {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 24px;
  color: var(--color-ink-soft);
  max-width: 640px;
  margin-top: 32px;
  margin-bottom: 0;
  line-height: 1.4;
}

.book-card {
  background: var(--color-pane);
  color: var(--color-ink-on-pane);
  padding: 24px 24px 28px;
  display: flex;
  flex-direction: column;
}

.book-card__cover {
  width: 100%;
  height: auto;
  display: block;
  flex-shrink: 0;
}

.book-card__btn {
  display: block;
  width: 100%;
  background: var(--color-bg-warm);
  color: var(--color-pane);
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  text-align: center;
  text-decoration: none;
}

.book-card__btn:hover {
  background: var(--color-brass-deep);
}

.book-card__signup {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--rule-deep);
}

.book-card__signup .book-signup__fields {
  flex-direction: column;
}

.book-card__signup .book-signup__btn {
  width: 100%;
  text-align: center;
}

.book-card__signup .book-signup__success {
  padding: 0;
  border-left: none;
}

.book-card__signup .book-signup__confirm {
  font-size: 14px;
}

.tools-section {
  padding: 72px 56px 88px;
}

.tools-section__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 28px;
}

.tools-section__header h2 {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0;
}

.post-row {
  display: grid;
  grid-template-columns: 60px 90px 1fr 160px 80px;
  gap: 28px;
  padding: 28px 0;
  border-top: 1px solid var(--rule-light);
  align-items: baseline;
  text-decoration: none;
  color: var(--color-ink);
}

.post-row:last-child,
.post-row--last {
  border-bottom: 1px solid var(--rule-light);
}

.post-row h3 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
}

.post-row__dek {
  font-size: 14px;
  color: var(--color-ink-soft);
  max-width: 520px;
  margin: 0;
  line-height: 1.5;
}

/* ── Blog index ─────────────────────────────────────────────── */
.index-hero {
  padding: 64px 56px 40px;
}

.index-hero h1 {
  font-family: var(--font-serif);
  font-size: 132px;
  font-weight: 500;
  line-height: 0.94;
  letter-spacing: -0.025em;
  margin: 0;
}

.featured-carousel {
  padding: 0 56px 40px;
}

.featured-carousel__track {
  position: relative;
}

.featured-carousel__slide {
  display: none;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  text-decoration: none;
  color: var(--color-ink);
  background: var(--color-pane);
  color: var(--color-ink-on-pane);
}

.featured-carousel__slide.is-active {
  display: grid;
}

.featured-carousel__media {
  background: var(--color-pane-deep);
  min-height: 280px;
}

.featured-carousel__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-carousel__body {
  padding: 40px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-carousel__body h3 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 10px 0 14px;
}

.featured-carousel__body p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-ink-on-pane-soft);
  margin: 0;
}

.featured-carousel__dots {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.featured-carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--rule-light);
  cursor: pointer;
  padding: 0;
}

.featured-carousel__dot.is-active {
  background: var(--color-brass);
}

.filter-bar {
  padding: 0 56px 32px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-pill {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid var(--rule-light);
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  text-decoration: none;
}

.filter-pill:hover {
  border-color: var(--color-brass);
  color: var(--color-brass);
}

.filter-pill--active {
  background: var(--color-brass);
  border-color: var(--color-brass);
  color: var(--color-bg);
}

.ledger {
  padding: 0 56px 96px;
}

.ledger__header {
  display: grid;
  grid-template-columns: 70px 130px 1fr 180px 80px;
  gap: 28px;
  padding: 14px 0;
  border-top: 1px solid var(--color-ink);
  border-bottom: 1px solid var(--rule-light);
}

.ledger__row {
  display: grid;
  grid-template-columns: 70px 130px 1fr 180px 80px;
  gap: 28px;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule-light);
  align-items: baseline;
  text-decoration: none;
  color: var(--color-ink);
}

.ledger__row:hover h3 {
  color: var(--color-brass);
}

.ledger__row h3 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.005em;
  margin: 0;
  transition: color .15s;
}

/* ── Single post ────────────────────────────────────────────── */
.post-masthead {
  padding: 64px 56px 56px;
}

section.post-masthead h1 {
  font-family: var(--font-body);
  font-size: 60px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
}

.post-masthead__subhead {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 26px;
  color: var(--color-ink-soft);
  max-width: 800px;
  margin-top: 28px;
  margin-bottom: 0;
  line-height: 1.4;
}

.post-body {
  background: var(--color-pane);
  color: var(--color-ink-on-pane);
}

.post-body__grid {
  display: grid;
  grid-template-columns: 220px 1fr 220px;
  gap: 56px;
  padding: 56px;
  align-items: flex-start;
}

.toc-rail {
  position: sticky;
  top: 32px;
  min-width: 0;
  overflow: hidden;
}

.toc-entry {
  padding: 12px 0;
  border-top: 1px solid var(--rule-deep);
}

.toc-entry__title {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 15px;
  line-height: 1.4;
}

.cite-block {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-ink-on-pane);
  opacity: 0.65;
  line-height: 1.5;
  overflow-wrap: break-word;
  word-break: break-all;
  min-width: 0;
}

.post-body__prose p {
  font-family: var(--font-body);
  font-size: 22px;
  line-height: 1.55;
  color: var(--color-ink-on-pane);
  margin-bottom: 26px;
}

.field-note {
  background: var(--color-bg-warm);
  color: var(--color-pane);
  padding: 28px 32px;
  margin: 36px 0;
}

.field-note__quote {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 26px;
  line-height: 1.4;
  margin: 0;
}

.marginalia-rail {
  /* aside — content positioned here */
}

.post-endbar {
  padding: 48px 56px;
  border-top: 1px solid var(--rule-light);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

/* ── About page ─────────────────────────────────────────────── */
.about-hero {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: stretch;
}

.about-hero__portrait {
  overflow: hidden;
}

.about-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-hero__content {
  padding: 64px 56px;
}

.about-hero h1 {
  font-family: var(--font-serif);
  font-size: 88px;
  font-weight: 500;
  line-height: 0.98;
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}

.about-hero__serif {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.5;
  margin-bottom: 18px;
}

.about-hero__sans {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-ink-soft);
  margin: 0;
}

.bio-table {
  display: grid;
  grid-template-columns: 160px 1fr;
  row-gap: 0;
}

.bio-table__key {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-brass);
  padding: 12px 0;
  border-bottom: 1px solid var(--rule-light);
}

.bio-table__val {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 19px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule-light);
}

.topics-section {
  background: var(--color-pane);
  color: var(--color-ink-on-pane);
  padding: 72px 56px;
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.topic-cell h3 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 500;
  margin: 0 0 10px;
  line-height: 1.1;
}

.book-block {
  padding: 72px 56px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
  align-items: center;
}

.book-block h2 {
  font-family: var(--font-serif);
  font-size: 64px;
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}

.book-block__btn-primary {
  display: inline-block;
  background: var(--color-brass);
  color: var(--color-bg);
  padding: 14px 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  text-decoration: none;
}

.book-block__btn-primary:hover {
  background: var(--color-brass-deep);
}

.book-block__btn-outline {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-ink);
  padding: 14px 0;
  text-decoration: none;
  color: var(--color-ink);
}

.book-block__btn-outline:hover {
  color: var(--color-brass);
  border-color: var(--color-brass);
}

/* ── Book page ───────────────────────────────────────────────── */
.book-page-topbar {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 40px 56px 0;
}

.book-page-hero {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 72px;
  padding: 48px 56px 80px;
  align-items: flex-start;
}

.book-page-hero h1 {
  font-family: var(--font-serif);
  font-size: 96px;
  font-weight: 500;
  line-height: 0.94;
  letter-spacing: -0.025em;
  margin: 0 0 24px;
}

.book-page-hero__subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 26px;
  color: var(--color-ink-soft);
  line-height: 1.45;
  max-width: 520px;
  margin: 0;
}

.book-page-hero__buttons {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-top: 36px;
  flex-wrap: wrap;
}

.book-page-hero__caption {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--rule-light);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Cover — enforces the 2:3 portrait ratio of the physical book */
.book-page-cover {
  aspect-ratio: 2 / 3;
  overflow: hidden;
  flex-shrink: 0;
  width: 100%;
}

.book-page-cover__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.book-page-cover__placeholder {
  width: 100%;
  height: 100%;
  background: var(--color-pane);
  opacity: 0.12;
}

.book-page-synopsis {
  background: var(--color-pane);
  color: var(--color-ink-on-pane);
  padding: 72px 56px;
}

.book-page-synopsis__inner {
  max-width: 680px;
  margin: 0 auto;
}

.book-page-synopsis__inner p {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.6;
  margin-bottom: 28px;
}

.book-page-cta {
  padding: 72px 56px 80px;
  border-top: 1px solid var(--rule-light);
}

/* ── Book signup form ────────────────────────────────────────── */
.book-signup {
  background: var(--color-pane);
  color: var(--color-ink-on-pane);
  border-top: 1px solid var(--rule-deep);
  padding: 72px 56px;
}

.book-signup__inner {
  max-width: 560px;
}

.book-signup__heading {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}

.book-signup__lede {
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-ink-on-pane-soft);
  margin: 0 0 32px;
}

.book-signup__form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.book-signup__fields {
  display: flex;
  gap: 12px;
}

.book-signup__input {
  flex: 1;
  background: transparent;
  border: 1px solid var(--rule-deep);
  color: var(--color-ink-on-pane);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 12px 14px;
  outline: none;
  transition: border-color .15s;
  width: 100%;
}

.book-signup__input::placeholder {
  color: var(--color-ink-on-pane-soft);
  opacity: 1;
}

.book-signup__input:focus {
  border-color: var(--color-brass-deep);
}

.book-signup__btn {
  align-self: flex-start;
  background: var(--color-ink-on-pane);
  color: var(--color-pane);
  border: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: 14px 24px;
  transition: background .15s;
}

.book-signup__btn:hover {
  background: var(--color-brass-deep);
  color: var(--color-pane);
}

.book-signup__error {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: #c0392b;
  margin: 0;
}

/* Success state */
.book-signup__success {
  padding: 28px 32px;
  border-left: 3px solid var(--color-brass-deep);
}

.book-signup__confirm {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 20px;
  line-height: 1.5;
  color: var(--color-ink-on-pane-soft);
  margin: 0;
}

/* ── H2 default ─────────────────────────────────────────────── */
h2 {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

/* ── Cookie consent banner ─────────────────────────────────────── */
.cookie-banner {
  display: none;
  position: fixed;
  left: 24px;
  right: 24px;
  bottom: 24px;
  z-index: 1000;
  max-width: 640px;
  margin: 0 auto;
  background: var(--color-bg-warm);
  color: var(--color-ink);
  padding: 24px 28px;
  border: 1px solid var(--rule-light);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .35);
  align-items: center;
  gap: 20px;
  justify-content: space-between;
  flex-wrap: wrap;
}

.cookie-banner.is-visible {
  display: flex;
}

.cookie-banner__text {
  font-size: 13px;
  line-height: 1.55;
  color: var(--color-ink-soft);
  margin: 0;
  flex: 1;
  min-width: 220px;
}

.cookie-banner__actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.cookie-banner__btn {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 12px 18px;
  border: 1px solid var(--rule-light);
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  white-space: nowrap;
}

.cookie-banner__btn:hover {
  border-color: var(--color-brass);
  color: var(--color-brass);
}

.cookie-banner__btn--accept {
  background: var(--color-brass-deep);
  border-color: var(--color-brass-deep);
  color: var(--color-bg);
}

.cookie-banner__btn--accept:hover {
  background: var(--color-brass);
  border-color: var(--color-brass);
  color: var(--color-bg);
}

/* ── Responsive breakpoints ─────────────────────────────────── */
@media (max-width: 900px) {
  .site-header {
    padding: 16px 24px;
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 2px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 40px 24px 32px;
    gap: 40px;
  }

  .hero h1 {
    font-size: 56px;
  }

  .tools-section {
    padding: 48px 24px 56px;
  }

  .post-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .index-hero {
    padding: 40px 24px 24px;
  }

  .index-hero h1 {
    font-size: 64px;
  }

  .featured-carousel {
    padding: 0 24px 32px;
  }

  .featured-carousel__slide.is-active {
    grid-template-columns: 1fr;
  }

  .featured-carousel__media {
    min-height: 200px;
  }

  .featured-carousel__body {
    padding: 28px 24px;
  }

  .featured-carousel__body h3 {
    font-size: 26px;
  }

  .filter-bar {
    padding: 0 24px 24px;
  }

  .ledger {
    padding: 0 24px 56px;
  }

  .ledger__header {
    display: none;
  }

  .ledger__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .post-masthead {
    padding: 40px 24px 40px;
  }

  section.post-masthead h1 {
    font-size: 52px;
  }

  .post-body__grid {
    grid-template-columns: 1fr;
    padding: 32px 24px;
    gap: 32px;
  }

  .toc-rail {
    position: static;
  }

  .marginalia-rail {
    display: none;
  }

  .post-endbar {
    padding: 32px 24px;
    flex-direction: column;
    gap: 16px;
  }

  .about-hero {
    grid-template-columns: 1fr;
  }

  .about-hero__portrait {
    height: 300px;
  }

  .about-hero__content {
    padding: 40px 24px;
  }

  .about-hero h1 {
    font-size: 48px;
  }

  .topics-section {
    padding: 48px 24px;
  }

  .topics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .book-block {
    grid-template-columns: 1fr;
    padding: 48px 24px;
    gap: 32px;
  }

  .book-block h2 {
    font-size: 40px;
  }

  .book-page-topbar {
    padding: 32px 24px 0;
  }

  .book-page-hero {
    grid-template-columns: 1fr;
    padding: 40px 24px 56px;
    gap: 44px;
  }

  .book-page-hero h1 {
    font-size: 60px;
  }

  /* On mobile, cover comes first and is capped so it doesn't dominate */
  .book-page-cover {
    order: -1;
    max-width: 280px;
    margin: 0 auto;
  }

  .book-page-synopsis {
    padding: 48px 24px;
  }

  .book-signup {
    padding: 48px 24px;
  }

  .book-signup__fields {
    flex-direction: column;
  }

  .book-signup__heading {
    font-size: 32px;
  }

  .book-page-cta {
    padding: 48px 24px 56px;
  }

  .site-footer {
    padding: 40px 24px 28px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .site-footer__bottom {
    flex-direction: column;
    gap: 8px;
  }

  .site-footer__bottom-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .cookie-banner {
    left: 12px;
    right: 12px;
    bottom: 12px;
    padding: 20px;
  }
}