:root {
  --ink: #17312d;
  --ink-soft: #4c625d;
  --paper: #f8f4e9;
  --paper-deep: #efe8d6;
  --cream: #fffdf7;
  --forest: #153b35;
  --forest-dark: #0c2725;
  --leaf: #3f6851;
  --gold: #f3c65d;
  --gold-pale: #ffe69a;
  --coral: #d47c5d;
  --line: rgba(23, 49, 45, 0.14);
  --shadow: 0 28px 80px rgba(12, 39, 37, 0.16);
  --radius: 28px;
  --font-rounded: "Hiragino Maru Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  --font-sans: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.92;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(rgba(23, 49, 45, 0.035) 0.7px, transparent 0.7px);
  background-size: 8px 8px;
  content: "";
  pointer-events: none;
}

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

p,
li,
figcaption {
  line-break: strict;
  text-wrap: pretty;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 999px;
  background: white;
  color: var(--ink);
  box-shadow: var(--shadow);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(1160px, calc(100% - 48px));
  margin-inline: auto;
}

.section {
  padding: 112px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(12, 39, 37, 0.94);
  color: #fff;
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.brand-lockup {
  display: block;
  padding: 2px 0;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: var(--font-rounded);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.35;
}

.brand small {
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.68);
  font-family: var(--font-rounded);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.09em;
  line-height: 1.45;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  font-weight: 700;
}

.main-nav a {
  transition: color 180ms ease;
}

.main-nav a:hover {
  color: var(--gold-pale);
}

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 24%, rgba(243, 198, 93, 0.16), transparent 28%),
    linear-gradient(135deg, #0b2528 0%, #123e39 58%, #24533e 100%);
  color: #fff;
}

.hero::after {
  position: absolute;
  right: -10%;
  bottom: -200px;
  width: 660px;
  height: 520px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  content: "";
  transform: rotate(-12deg);
}

.hero-glow,
.hero-glow::before,
.hero-glow::after {
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold-pale);
  box-shadow: 0 0 14px var(--gold), 80px 70px 0 -1px rgba(255, 230, 154, 0.75), 160px -40px 0 -1px rgba(255, 230, 154, 0.48), 280px 90px 0 -1px rgba(255, 230, 154, 0.38);
  content: "";
}

.hero-glow {
  top: 180px;
  left: 7%;
}

.hero-glow::before {
  top: 280px;
  left: 34vw;
}

.hero-glow::after {
  top: 40px;
  left: 75vw;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 760px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 56px;
  padding-top: 48px;
  padding-bottom: 72px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 20px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-family: var(--font-rounded);
  font-size: clamp(44px, 4vw, 58px);
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.38;
}

.hero h1 em {
  color: var(--gold-pale);
  font-style: normal;
}

.hero-copy {
  max-width: 560px;
}

.hero-lead {
  max-width: 32em;
  margin: 30px 0 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: 16px;
  line-height: 2;
}

.hero blockquote {
  margin: 24px 0 0;
  color: #fff4c9;
  font-family: var(--font-rounded);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 28px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 24px;
  border: 0;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.3;
  text-align: center;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-gold {
  background: var(--gold);
  color: #233a32;
  box-shadow: 0 12px 32px rgba(243, 198, 93, 0.18);
}

.button-gold:hover {
  background: var(--gold-pale);
  box-shadow: 0 16px 38px rgba(243, 198, 93, 0.24);
}

.button-forest {
  background: var(--forest);
  color: #fff;
  box-shadow: 0 12px 32px rgba(21, 59, 53, 0.18);
}

.button-muted {
  cursor: default;
  background: #dcd8ca;
  color: #6d736e;
}

.text-link,
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.text-link {
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
}

.cover-stage {
  position: relative;
  min-height: 570px;
  perspective: 1400px;
}

.cover {
  position: absolute;
  display: block;
  overflow: hidden;
  border: 6px solid rgba(255, 255, 255, 0.92);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 34px 74px rgba(0, 0, 0, 0.35);
  transition: transform 260ms ease, filter 260ms ease;
}

.cover img {
  width: 100%;
}

.cover-main {
  z-index: 3;
  top: 2%;
  left: 28%;
  width: 315px;
  transform: rotate(2deg) translateZ(45px);
}

.cover-main:hover {
  transform: rotate(0deg) translateY(-8px) translateZ(65px);
}

.cover-back {
  top: 16%;
  width: 245px;
  filter: saturate(0.82) brightness(0.86);
}

.cover-back:hover {
  z-index: 5;
  filter: saturate(1) brightness(1);
}

.cover-two {
  left: 2%;
  transform: rotate(-10deg) translateZ(-30px);
}

.cover-two:hover {
  transform: rotate(-4deg) translateY(-8px) translateZ(10px);
}

.cover-three {
  right: 0;
  transform: rotate(10deg) translateZ(-35px);
}

.cover-three:hover {
  transform: rotate(4deg) translateY(-8px) translateZ(10px);
}

.cover-label {
  position: absolute;
  right: 14px;
  bottom: 14px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(12, 39, 37, 0.92);
  color: var(--gold-pale);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.cover-label-preorder {
  background: rgba(73, 62, 25, 0.94);
  color: #fff5c8;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.promise {
  background: var(--cream);
}

.promise-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 72px;
}

.promise h2,
.section-heading h2,
.fuu-copy h2,
.about-card h2,
.story-copy h2,
.detail-copy h1,
.policy h1 {
  margin: 0;
  font-family: var(--font-rounded);
  letter-spacing: 0.04em;
  line-height: 1.48;
}

.promise h2,
.section-heading h2,
.fuu-copy h2,
.about-card h2,
.story-copy h2 {
  font-size: clamp(30px, 3.5vw, 48px);
}

.promise h2 {
  font-size: clamp(32px, 3.2vw, 46px);
}

.section-heading h2 {
  font-size: clamp(30px, 3.2vw, 44px);
}

.promise h2 span,
.section-heading h2 span {
  display: inline-block;
}

.promise h2 span + span {
  margin-left: 0.18em;
}

.promise-copy > p {
  margin: 0 0 20px;
  color: var(--ink-soft);
}

.promise-copy {
  max-width: 37em;
}

.feature-list {
  display: grid;
  margin: 40px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.feature-list li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.feature-list strong {
  color: var(--leaf);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.series {
  background: var(--paper);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 56px;
}

.section-heading > p:last-child {
  max-width: 620px;
  margin: 18px 0 0;
  color: var(--ink-soft);
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.book-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 253, 247, 0.84);
  box-shadow: 0 20px 50px rgba(23, 49, 45, 0.08);
}

.book-card-image {
  --cover-pad: clamp(18px, 2.4vw, 28px);
  position: relative;
  display: grid;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  place-items: center;
  background: linear-gradient(145deg, #173d39, #2e5946);
}

.book-card-image img {
  position: absolute;
  top: var(--cover-pad);
  left: var(--cover-pad);
  width: calc(100% - var(--cover-pad) - var(--cover-pad));
  max-width: none;
  height: calc(100% - var(--cover-pad) - var(--cover-pad));
  max-height: none;
  border-radius: 7px;
  object-fit: contain;
  object-position: center;
  box-shadow: 0 18px 38px rgba(12, 39, 37, 0.24);
  transition: transform 500ms ease;
}

.book-card:hover .book-card-image img {
  transform: scale(1.018);
}

.book-card-morning .book-card-image {
  background: linear-gradient(145deg, #d9dfb9, #89a372);
}

.book-card-spring .book-card-image {
  background: linear-gradient(145deg, #c9dfd3, #72977a);
}

.book-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 28px 28px 30px;
}

.book-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--leaf);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.status {
  padding: 5px 10px;
  border-radius: 999px;
  background: #e8e2d2;
  color: #6b716d;
  letter-spacing: 0.05em;
}

.status-preorder {
  background: #f2e3ae;
  color: #6d5515;
}

.book-card h3 {
  margin: 16px 0 12px;
  font-family: var(--font-rounded);
  font-size: 24px;
  letter-spacing: 0.04em;
}

.book-card p {
  min-height: 6.9em;
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.9;
}

.book-release {
  display: block;
  margin-top: 16px;
  color: #6d5515;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.card-link {
  justify-content: center;
  margin-top: 0;
  color: var(--leaf);
  font-size: 13px;
}

.book-card-actions {
  display: grid;
  gap: 14px;
  margin-top: auto;
  padding-top: 24px;
}

.book-card-amazon {
  width: 100%;
  min-height: 50px;
  padding: 12px 18px;
  font-size: 13px;
}

.fuu-section {
  overflow: hidden;
  background: var(--forest-dark);
  color: #fff;
}

.fuu-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 64px;
}

.scene-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 34px;
  background: #173834;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.3);
}

.scene-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
}

.scene-card figcaption {
  padding: 14px 22px 16px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
}

.fuu-copy > p:not(.section-kicker) {
  color: rgba(255, 255, 255, 0.72);
}

.fuu-copy > p.fuu-secret {
  margin-top: 22px;
  color: var(--gold-pale);
  font-family: var(--font-rounded);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.fuu-secret span {
  display: block;
}

.fuu-copy {
  max-width: 34em;
}

.fuu-copy > p:not(.section-kicker),
.about-card p:last-child,
.story-copy > p:not(.section-kicker) {
  line-height: 2;
}

.quote-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-top: 34px;
  padding: 24px;
  border: 1px solid rgba(255, 230, 154, 0.24);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
}

.quote-card span {
  color: var(--gold);
  font-family: Georgia, serif;
  font-size: 48px;
  line-height: 0.8;
}

.quote-card p {
  margin: 0;
  color: var(--gold-pale);
  font-family: var(--font-rounded);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.7;
}

.friends-section {
  background: #e5eddf;
}

.friends-heading {
  max-width: 760px;
  margin-bottom: 52px;
}

.friends-heading h2 {
  margin: 0;
  font-family: var(--font-rounded);
  font-size: clamp(30px, 3.2vw, 44px);
  letter-spacing: 0.04em;
  line-height: 1.48;
}

.friends-heading h2 span {
  display: inline-block;
}

.friends-heading > p:last-child {
  max-width: 38em;
  margin: 18px 0 0;
  color: var(--ink-soft);
  line-height: 2;
}

.friends-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.friend-card {
  padding: 30px 26px 28px;
  border: 1px solid rgba(63, 104, 81, 0.16);
  border-radius: 28px;
  background: rgba(255, 253, 247, 0.88);
  box-shadow: 0 20px 50px rgba(23, 49, 45, 0.08);
  text-align: center;
}

.friend-portrait {
  position: relative;
  width: min(190px, 76%);
  aspect-ratio: 1;
  margin: 0 auto 22px;
  overflow: hidden;
  border: 5px solid rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  background: #bfd0a4;
  box-shadow: 0 16px 36px rgba(23, 49, 45, 0.16);
}

.friend-portrait img {
  position: absolute;
  width: 430%;
  max-width: none;
  height: auto;
}

.friend-mimi img {
  top: -111%;
  left: -116%;
}

.friend-popo img {
  top: -96%;
  left: -239%;
}

.friend-koko img {
  top: -135%;
  left: -210%;
}

.friend-card h3 {
  margin: 0;
  font-family: var(--font-rounded);
  font-size: 24px;
  letter-spacing: 0.05em;
}

.friend-card p {
  margin: 10px auto 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.9;
}

.friends-more {
  margin-top: 34px;
  padding: 24px 30px;
  border: 1px solid rgba(63, 104, 81, 0.2);
  border-radius: 22px;
  background: rgba(255, 230, 154, 0.36);
}

.friends-more p {
  display: grid;
  grid-template-columns: minmax(230px, 0.75fr) minmax(0, 1.25fr);
  align-items: center;
  gap: 32px;
  margin: 0;
}

.friends-more strong {
  color: var(--forest);
  font-family: var(--font-rounded);
  font-size: 18px;
  letter-spacing: 0.04em;
}

.friends-more span {
  color: var(--ink-soft);
  line-height: 1.9;
}

.about {
  background: var(--paper);
}

.about-card {
  max-width: 920px;
  padding: 64px;
  border: 1px solid rgba(63, 104, 81, 0.18);
  border-radius: 34px;
  background: rgba(255, 253, 247, 0.78);
  box-shadow: 0 22px 65px rgba(63, 104, 81, 0.08);
}

.about-copy {
  max-width: 44em;
  margin: 0 auto;
}

.about-card p:last-child {
  max-width: 42em;
  margin-bottom: 0;
  color: var(--ink-soft);
}

.site-footer {
  padding: 64px 0 24px;
  background: #0b2926;
  color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
}

.footer-brand {
  margin: 0;
  color: #fff;
  font-family: var(--font-rounded);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.footer-grid p:last-child {
  margin: 8px 0 0;
  font-size: 12px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  font-size: 13px;
  font-weight: 700;
}

.footer-links a:hover {
  color: var(--gold-pale);
}

.copyright {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 10px;
  letter-spacing: 0.08em;
}

/* Book detail pages */
.detail-hero {
  overflow: hidden;
  padding: 52px 0 96px;
  background: var(--detail-bg, #173b38);
  color: #fff;
}

.detail-night { --detail-bg: linear-gradient(140deg, #071d29, #123b48 58%, #335246); }
.detail-morning { --detail-bg: linear-gradient(140deg, #34553d, #809558 55%, #cbb66a); }
.detail-spring { --detail-bg: linear-gradient(140deg, #2a5549, #60907c 56%, #b5b77e); }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 48px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
}

.breadcrumb a:hover {
  color: #fff;
}

.detail-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  align-items: center;
  gap: 90px;
}

.detail-cover {
  margin: 0;
}

.detail-cover img {
  width: 100%;
  border: 7px solid rgba(255, 255, 255, 0.92);
  border-radius: 12px;
  box-shadow: 0 34px 78px rgba(0, 0, 0, 0.32);
  transform: rotate(-1.5deg);
}

.detail-volume {
  margin: 0;
  color: var(--gold-pale);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.detail-heading-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.detail-copy h1 {
  color: #fff;
  font-size: clamp(38px, 5vw, 64px);
}

.detail-intro {
  max-width: 35em;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 17px;
  line-height: 2;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.detail-tags li {
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 11px;
  font-weight: 700;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 32px;
}

.detail-note {
  color: rgba(255, 255, 255, 0.58);
  font-size: 11px;
}

.story-section {
  background: var(--cream);
}

.story-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 82px;
}

.story-copy > p:not(.section-kicker) {
  color: var(--ink-soft);
}

.story-copy {
  max-width: 35em;
}

.story-quote {
  margin: 32px 0 0;
  padding-left: 22px;
  border-left: 3px solid var(--gold);
  color: var(--forest);
  font-family: var(--font-rounded);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.8;
}

.story-image {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: #eee8d8;
  box-shadow: var(--shadow);
}

.story-image figcaption {
  padding: 14px 20px 16px;
  color: var(--ink-soft);
  font-size: 11px;
}

.reading-section {
  background: var(--paper);
}

.reading-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.reading-card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 253, 247, 0.78);
}

.reading-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--coral);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.reading-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-rounded);
  font-size: 20px;
}

.reading-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.book-nav {
  background: #e6eddf;
}

.book-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.book-nav a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

/* Privacy and utility pages */
.policy-main {
  min-height: 62vh;
  background: var(--cream);
}

.policy {
  width: min(820px, calc(100% - 48px));
  margin-inline: auto;
  padding: 88px 0 112px;
}

.policy h1 {
  font-size: clamp(34px, 5vw, 52px);
}

.policy .updated {
  margin: 12px 0 48px;
  color: var(--ink-soft);
  font-size: 12px;
}

.policy h2 {
  margin: 44px 0 12px;
  font-family: var(--font-rounded);
  font-size: 22px;
}

.policy p,
.policy li {
  color: var(--ink-soft);
}

.policy a {
  color: #2e6c5a;
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (min-width: 1041px) {
  .section-heading,
  .friends-heading {
    max-width: none;
  }

  .section-heading > p:last-child,
  .friends-heading > p:last-child {
    max-width: none;
    white-space: nowrap;
  }
}

@media (max-width: 1040px) {
  .hero-grid {
    grid-template-columns: 1fr 0.9fr;
    gap: 36px;
  }

  .hero h1 {
    font-size: clamp(42px, 5vw, 50px);
  }

  .promise-grid {
    gap: 52px;
  }

  .promise h2 {
    font-size: 40px;
  }

  .cover-stage {
    min-height: 510px;
  }

  .cover-main {
    left: 22%;
    width: 280px;
  }

  .cover-back {
    width: 205px;
  }

  .book-grid {
    gap: 18px;
  }

  .book-card-body {
    padding: 24px 22px 26px;
  }

  .detail-grid {
    grid-template-columns: 310px 1fr;
    gap: 56px;
  }
}

@media (max-width: 820px) {
  .section {
    padding: 82px 0;
  }

  .main-nav {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    padding-top: 80px;
  }

  .hero-copy {
    max-width: 620px;
  }

  .cover-stage {
    min-height: 530px;
  }

  .cover-main {
    left: calc(50% - 145px);
    width: 290px;
  }

  .cover-back {
    width: 210px;
  }

  .cover-two {
    left: calc(50% - 270px);
  }

  .cover-three {
    right: calc(50% - 270px);
  }

  .promise-grid,
  .fuu-grid,
  .story-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .book-grid {
    grid-template-columns: 1fr;
  }

  .book-card {
    display: grid;
    grid-template-columns: minmax(200px, 0.8fr) 1.2fr;
  }

  .book-card-image {
    --cover-pad: 22px;
    height: 100%;
    min-height: 360px;
    aspect-ratio: auto;
  }

  .book-card p {
    min-height: 0;
  }

  .about-card {
    grid-template-columns: 160px 1fr;
    gap: 36px;
    padding: 42px;
  }

  .detail-grid {
    grid-template-columns: 250px 1fr;
    gap: 42px;
  }

  .reading-grid {
    grid-template-columns: 1fr;
  }

  .friends-grid {
    gap: 18px;
  }

  .friend-card {
    padding: 24px 18px;
  }

  .friends-more p {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 620px) {
  .shell,
  .policy {
    width: min(100% - 32px, 1160px);
  }

  .header-inner {
    min-height: 74px;
  }

  .brand strong {
    font-size: 14.5px;
    letter-spacing: 0.1em;
  }

  .brand small {
    margin-top: 3px;
    font-size: 9.5px;
    letter-spacing: 0.06em;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    min-height: auto;
    gap: 34px;
    padding-top: 64px;
    padding-bottom: 32px;
  }

  .hero h1 {
    font-size: clamp(34px, 10vw, 40px);
    line-height: 1.45;
  }

  .hero-lead {
    max-width: 30em;
    font-size: 15px;
    line-height: 2;
  }

  .hero blockquote {
    font-size: 17px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    gap: 18px;
  }

  .button {
    width: 100%;
  }

  .text-link {
    justify-content: center;
  }

  .cover-stage {
    min-height: 430px;
    transform: scale(0.88);
    transform-origin: top center;
  }

  .cover-main {
    left: calc(50% - 120px);
    width: 240px;
  }

  .cover-back {
    top: 18%;
    width: 170px;
  }

  .cover-two {
    left: calc(50% - 205px);
  }

  .cover-three {
    right: calc(50% - 205px);
  }

  .promise-grid {
    gap: 32px;
  }

  .promise h2,
  .section-heading h2 {
    font-size: clamp(26px, 7.4vw, 29px);
    letter-spacing: 0.02em;
    line-height: 1.52;
  }

  .promise h2 span,
  .section-heading h2 span,
  .mobile-lines span,
  .responsive-copy span {
    display: block;
  }

  .promise h2 span + span {
    margin-left: 0;
  }

  .promise-copy > p,
  .section-heading > p:last-child,
  .friends-heading > p:last-child {
    font-size: 15px;
    line-height: 2;
  }

  .feature-list li {
    grid-template-columns: 108px 1fr;
    gap: 16px;
  }

  .book-card {
    display: block;
  }

  .book-card-image {
    --cover-pad: 20px;
    height: auto;
    min-height: 0;
    aspect-ratio: 4 / 5;
  }

  .about-card {
    padding: 28px;
  }

  .footer-grid,
  .book-nav-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .detail-hero {
    padding-top: 30px;
    padding-bottom: 72px;
  }

  .breadcrumb {
    margin-bottom: 34px;
  }

  .detail-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .detail-cover {
    width: min(70vw, 285px);
    margin-inline: auto;
  }

  .detail-copy {
    text-align: center;
  }

  .detail-heading-meta {
    justify-content: center;
  }

  .detail-intro {
    max-width: 31em;
    margin-inline: auto;
    font-size: 15px;
    line-height: 2;
    text-align: left;
  }

  .detail-tags,
  .detail-actions {
    justify-content: center;
  }

  .story-grid {
    gap: 36px;
  }

  .story-image {
    order: -1;
  }

  .scene-card img {
    aspect-ratio: 4 / 3;
    object-position: center;
  }

  .friends-heading {
    margin-bottom: 34px;
  }

  .friends-heading h2 {
    font-size: 30px;
  }

  .friends-grid {
    grid-template-columns: 1fr;
  }

  .friend-card {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: center;
    gap: 4px 20px;
    padding: 18px;
    text-align: left;
  }

  .friend-portrait {
    width: 96px;
    grid-row: 1 / span 2;
    margin: 0;
  }

  .friend-card h3 {
    align-self: end;
    font-size: 21px;
  }

  .friend-card p {
    align-self: start;
    margin: 2px 0 0;
  }

  .friends-more {
    padding: 22px;
  }

  .friends-more strong,
  .friends-more span {
    display: block;
  }

  .friends-more span {
    margin-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}