:root {
  --paper: #f4f1e9;
  --paper-deep: #e6e2d8;
  --ink: #11110f;
  --muted: #706f69;
  --berry: #ff6846;
  --moss: #80a67a;
  --gold: #efb64d;
  --sky: #627bf4;
  --white: #faf9f5;
  --line: #d8d4ca;
  --shadow: none;
  --radius: 22px;
  --page-pad: clamp(20px, 5vw, 78px);
  --body: "Manrope", Arial, sans-serif;
  --display: Georgia, "Times New Roman", serif;
  --mono: "DM Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}

body::before {
  z-index: 100;
  opacity: 0.1;
}

.case-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 76px;
  padding: 0 var(--page-pad);
  background: rgb(244 241 233 / 92%);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.case-wordmark {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  justify-self: start;
  color: var(--ink);
  font-size: 14px;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.case-wordmark span {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  overflow: hidden;
  background: transparent;
  border-radius: 50%;
}

.case-wordmark span img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.case-header-links {
  display: flex;
  gap: clamp(22px, 3vw, 44px);
  font-size: 12px;
}

.case-header a {
  color: inherit;
  text-decoration: none;
}

.case-header-links a:hover {
  text-decoration: underline;
  text-underline-offset: 5px;
}

.case-close {
  display: inline-flex;
  gap: 16px;
  align-items: center;
  justify-self: end;
  padding: 8px 13px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 11px;
}

.case-close span {
  font-size: 18px;
  line-height: 0.7;
}

.progress {
  top: 76px;
  z-index: 60;
  height: 3px;
  background: var(--berry);
}

.rail.chapter-nav {
  position: sticky;
  top: 76px;
  left: auto;
  z-index: 40;
  display: flex;
  gap: 6px;
  width: 100%;
  padding: 12px var(--page-pad);
  overflow-x: auto;
  background: rgb(250 249 245 / 92%);
  border-bottom: 1px solid var(--line);
  transform: none;
  backdrop-filter: blur(16px);
  scrollbar-width: none;
}

.rail.chapter-nav::-webkit-scrollbar {
  display: none;
}

.rail.chapter-nav a {
  flex: 0 0 auto;
  gap: 7px;
  padding: 7px 10px;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.07em;
}

.rail.chapter-nav a:hover,
.rail.chapter-nav a.active {
  color: var(--ink);
  background: var(--paper);
  border-color: var(--line);
}

.rail.chapter-nav i {
  width: 6px;
  height: 6px;
  border-color: currentColor;
  background: transparent;
}

.rail.chapter-nav span,
.rail.chapter-nav:hover span,
.rail.chapter-nav a:focus span {
  opacity: 1;
  transform: none;
}

.rail.chapter-nav a.active i {
  background: var(--berry);
  border-color: var(--berry);
  transform: none;
}

main {
  overflow: clip;
}

.slide {
  display: block;
  min-height: auto;
  padding: clamp(95px, 11vw, 180px) var(--page-pad);
  border-bottom: 1px solid var(--line);
}

.content {
  width: min(1320px, 100%);
}

.eyebrow {
  gap: 0;
  margin-bottom: 22px;
  padding: 7px 10px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.eyebrow::before {
  display: none;
}

h1,
h2,
.display {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.06em;
}

h1 {
  max-width: 1000px;
  margin-bottom: 30px;
  font-size: clamp(58px, 8.5vw, 138px);
  line-height: 0.9;
}

h2 {
  max-width: 980px;
  margin-bottom: 24px;
  font-size: clamp(43px, 5.6vw, 82px);
  line-height: 1;
}

h3 {
  font-size: 17px;
  letter-spacing: -0.025em;
}

.lead {
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(17px, 1.65vw, 24px);
  letter-spacing: -0.02em;
  line-height: 1.5;
}

#intro {
  display: grid;
  min-height: calc(100vh - 124px);
  align-items: center;
  color: var(--white);
  background: var(--ink);
}

#intro .eyebrow {
  color: var(--white);
  border-color: rgb(255 255 255 / 22%);
}

#intro .lead {
  color: rgb(250 249 245 / 65%);
}

.hero-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  gap: clamp(56px, 7vw, 110px);
}

.hero-mark {
  overflow: hidden;
  aspect-ratio: 0.88;
  color: var(--ink);
  background:
    radial-gradient(circle at center, var(--gold) 0 23%, transparent 24%),
    repeating-radial-gradient(circle at center, transparent 0 45px, rgb(17 17 15 / 15%) 46px 47px),
    var(--berry);
  border: 1px solid rgb(255 255 255 / 22%);
  border-radius: var(--radius);
  box-shadow: none;
}

.hero-mark::before,
.hero-mark::after {
  border-color: var(--ink);
}

.hero-mark strong {
  font-family: var(--display);
  font-size: clamp(72px, 8vw, 128px);
  font-weight: 500;
  letter-spacing: -0.08em;
}

.hero-mark small {
  bottom: 16%;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.hero-pet-image {
  display: grid;
  min-height: clamp(480px, 45vw, 700px);
  place-items: center;
  overflow: visible;
  background: transparent;
  border: 0;
  border-radius: 0;
}

.hero-pet-image img {
  display: block;
  width: min(135%, 720px);
  max-height: 720px;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 34px 38px rgb(0 0 0 / 28%));
}

.meta {
  gap: 7px;
}

.pill {
  padding: 8px 12px;
  color: var(--muted);
  background: var(--white);
  border-color: var(--line);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#intro .pill {
  color: rgb(250 249 245 / 70%);
  background: rgb(255 255 255 / 6%);
  border-color: rgb(255 255 255 / 18%);
}

.loop,
.roles,
.stat-grid,
.result-grid,
.system-map,
.reflection,
.mechanic-grid,
.store,
.food-insights,
.merge-stats,
.care-stats {
  gap: 12px;
}

.loop-card,
.card {
  background: var(--white);
  border-color: var(--line);
  border-radius: var(--radius);
  box-shadow: none;
}

.loop-card {
  min-height: 290px;
  padding: 30px;
}

.loop-card::after {
  top: auto;
  right: 24px;
  bottom: 24px;
  width: 80px;
  height: 80px;
  border: 1px solid var(--ink);
  opacity: 1;
}

.loop-card:nth-child(1) {
  background: var(--gold);
}

.loop-card:nth-child(2) {
  background: var(--plum, #d8d2ff);
}

.loop-card:nth-child(3) {
  color: var(--white);
  background: var(--ink);
}

.loop-card:nth-child(3) p {
  color: rgb(250 249 245 / 60%);
}

.loop-card b {
  margin-bottom: 72px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
}

.loop-card:nth-child(3) b {
  color: var(--gold);
}

.loop-card p {
  max-width: 250px;
  font-size: 13px;
}

.result-grid,
.system-map,
.food-insights,
.merge-stats,
.care-stats {
  display: grid;
}

.result-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 40px 0 14px;
}

.system-map .card,
.food-insights .card,
.merge-stats .card,
.care-stats .card {
  min-height: 180px;
  padding: 28px;
}

.system-map p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.system-map {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 40px;
}

.system-map .card:nth-child(4n + 1) {
  background: var(--gold);
}

.system-map .card:nth-child(4n + 4) {
  color: var(--white);
  background: var(--ink);
}

.system-map .card:nth-child(4n + 4) p {
  color: rgb(250 249 245 / 64%);
}

.pet-screens {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 46px;
}

.pet-shot {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.pet-shot img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 19;
  object-fit: contain;
  object-position: center;
  background: var(--paper-deep);
}

.pet-shot figcaption {
  padding: 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.pet-shot strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
}

.action-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 40px;
  padding: clamp(28px, 5vw, 54px);
  color: var(--white);
  background: var(--ink);
  border-radius: var(--radius);
}

.action-flow div {
  display: grid;
  gap: 18px;
  min-height: 150px;
  padding-right: 18px;
  border-right: 1px solid rgb(250 249 245 / 18%);
}

.action-flow div:last-child {
  border-right: 0;
}

.action-flow b {
  color: var(--gold);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
}

.action-flow span {
  max-width: 150px;
  font-size: clamp(20px, 2.4vw, 34px);
  line-height: 1.05;
  letter-spacing: -0.055em;
}

.action-roles {
  margin-top: 0;
}

.formula {
  margin: 42px 0;
  padding: 28px 30px;
  color: var(--white);
  background: var(--ink);
  border-left: 0;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: clamp(13px, 1.5vw, 18px);
}

.role {
  min-height: 230px;
  padding: 26px;
}

.role .icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 52px;
  background: var(--role-color);
  border: 1px solid var(--ink);
  border-radius: 50%;
  box-shadow: 4px 5px 0 var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
}

.role .icon img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.role strong {
  font-family: var(--display);
  font-size: 27px;
  font-weight: 500;
  letter-spacing: -0.05em;
}

.role p {
  font-size: 14px;
}

.specialists {
  padding: clamp(30px, 5vw, 70px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.data-panel {
  margin-top: 16px;
  padding: clamp(26px, 4vw, 48px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.data-panel-header {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.45fr);
  gap: 26px;
  align-items: end;
  margin-bottom: 24px;
}

.data-panel-header .eyebrow {
  margin-bottom: 14px;
}

.data-panel-header h3 {
  max-width: 700px;
  margin-bottom: 0;
  font-family: var(--display);
  font-size: clamp(30px, 3vw, 48px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.055em;
}

.data-panel-header p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.data-table-wrap {
  overflow: auto;
  max-height: 520px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 8px);
  scrollbar-gutter: stable;
}

.level-table-wrap {
  max-height: 620px;
}

.data-table {
  width: 100%;
  min-width: 0;
  border-collapse: collapse;
  table-layout: fixed;
  background: var(--white);
  font-family: var(--mono);
  font-size: 9px;
}

.data-table th,
.data-table td {
  padding: 10px 8px;
  text-align: right;
  border-bottom: 1px solid var(--line);
  white-space: normal;
}

.data-table th:first-child,
.data-table td:first-child {
  text-align: left;
}

.data-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  color: var(--ink);
  background: var(--paper-deep);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.data-table th:first-child,
.data-table td:first-child {
  width: 20%;
}

.level-table th:first-child,
.level-table td:first-child {
  width: 7%;
}

.level-table th:nth-child(2),
.level-table td:nth-child(2) {
  width: 19%;
}

.level-table th:nth-child(3),
.level-table td:nth-child(3) {
  width: 19%;
}

.level-table th:nth-child(4),
.level-table td:nth-child(4),
.level-table th:nth-child(5),
.level-table td:nth-child(5),
.level-table th:nth-child(6),
.level-table td:nth-child(6),
.level-table th:nth-child(7),
.level-table td:nth-child(7) {
  width: 13.75%;
}

.data-table tbody tr:nth-child(10n) {
  background: rgb(255 104 70 / 7%);
}

.data-table tbody tr:hover {
  background: rgb(98 123 244 / 8%);
}

.level-table td:nth-child(2),
.level-table td:nth-child(3),
.level-table td:nth-child(4) {
  color: var(--ink);
}

.bar {
  background: var(--paper-deep);
}

.pet-row span,
.pet-row b,
.tier-chart .band,
.tier-chart .amount {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
}

.mechanic-grid .card {
  min-height: 190px;
  padding: 28px;
}

.mechanic-grid .card:nth-child(2) {
  background: var(--gold);
}

.mechanic-grid p {
  font-size: 14px;
  line-height: 1.55;
}

.stat {
  min-height: 190px;
  padding: 28px;
}

.stat:nth-child(2n) {
  background: #d8d2ff;
}

.stat strong {
  color: var(--ink);
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.06em;
}

.stat span {
  font-size: 13px;
}

.chart-card {
  padding: clamp(28px, 5vw, 58px);
}

.chart-card p {
  max-width: 620px;
  color: var(--muted);
  font-size: 14px;
}

.balance-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 16px;
  margin-top: 16px;
}

.tier-chart {
  margin-top: 34px;
}

.tier-chart .bar {
  height: 14px;
}

.stat-curve {
  display: grid;
  grid-template-columns: 58px 1fr 58px;
  gap: 13px 16px;
  align-items: center;
  margin-top: 34px;
}

.stat-curve span,
.stat-curve b {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
}

.stat-curve b {
  justify-self: end;
}

.stat-curve .bar {
  overflow: hidden;
  height: 14px;
  background: var(--paper-deep);
  border-radius: 999px;
}

.stat-curve .bar i {
  display: block;
  width: var(--width);
  height: 100%;
  background: var(--berry);
  border-radius: inherit;
}

.food-strings {
  display: grid;
  gap: 10px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.food-strings code {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  white-space: normal;
}

.food-strings code:first-child {
  color: var(--ink);
}

.formula-board {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.formula-board article {
  min-height: 170px;
  padding: 24px;
  color: var(--white);
  background: var(--ink);
  border-radius: var(--radius);
}

.formula-board article:nth-child(2) {
  background: var(--berry);
}

.formula-board article:nth-child(3) {
  background: var(--gold);
  color: var(--ink);
}

.formula-board article:nth-child(4) {
  background: var(--sky);
}

.formula-board article:nth-child(5) {
  background: var(--moss);
}

.formula-board small {
  display: block;
  margin-bottom: 26px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.formula-board code {
  color: inherit;
  font-family: var(--mono);
  font-size: clamp(13px, 1.15vw, 16px);
  line-height: 1.55;
  white-space: normal;
}

.example-pet {
  display: grid;
  grid-template-columns: 1fr minmax(360px, 0.8fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  margin-top: 16px;
  padding: clamp(30px, 5vw, 62px);
  color: var(--white);
  background: var(--ink);
}

.example-pet .eyebrow {
  color: var(--white);
  border-color: rgb(255 255 255 / 22%);
}

.example-pet h3 {
  max-width: 620px;
  font-family: var(--display);
  font-size: clamp(34px, 4vw, 58px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.06em;
}

.example-pet p:not(.eyebrow) {
  max-width: 660px;
  color: rgb(250 249 245 / 68%);
  font-size: 15px;
}

.example-stats {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px 20px;
  padding: 24px;
  background: rgb(255 255 255 / 7%);
  border: 1px solid rgb(255 255 255 / 15%);
  border-radius: calc(var(--radius) - 8px);
}

.example-stats span,
.example-stats small {
  color: rgb(250 249 245 / 68%);
}

.example-stats span {
  align-self: end;
  font-size: 14px;
}

.example-stats b {
  justify-self: end;
  font-family: var(--display);
  font-size: clamp(34px, 4vw, 56px);
  font-weight: 500;
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.example-stats small {
  grid-column: 1 / -1;
  margin-top: -8px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgb(255 255 255 / 13%);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.example-stats small:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.food-insights {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 14px;
}

.food-insights strong,
.merge-stats strong,
.care-stats strong {
  display: block;
  margin-bottom: 24px;
  font-family: var(--display);
  font-size: clamp(36px, 4vw, 58px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.06em;
}

.food-insights span,
.merge-stats span,
.care-stats span {
  color: var(--muted);
  font-size: 14px;
}

.merge-stats {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 40px 0 18px;
}

.merge-stats .card:nth-child(2n) {
  background: #d8d2ff;
}

.tutorial-banner {
  overflow: hidden;
  width: min(640px, 100%);
  margin: 18px auto 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.tutorial-banner img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  object-position: center;
  background: var(--paper-deep);
}

.tutorial-banner figcaption {
  padding: 18px 22px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.tutorial-banner strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
}

.care-stats {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 14px;
}

.evolution {
  gap: 12px;
  padding: clamp(32px, 5vw, 65px);
  background: var(--gold);
  border-radius: var(--radius);
}

.evolution::before {
  background: var(--ink);
}

.evo-step .node {
  color: var(--white);
  background: var(--ink);
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--ink);
  font-family: var(--mono);
  font-size: 16px;
}

.evo-step b {
  font-size: 13px;
}

.evo-step small {
  color: rgb(17 17 15 / 60%);
  font-family: var(--mono);
  font-size: 8px;
}

.split {
  padding: clamp(30px, 5vw, 70px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.donut-center strong {
  font-family: var(--display);
  font-size: 52px;
  font-weight: 500;
  letter-spacing: -0.06em;
}

.legend-row {
  font-size: 12px;
}

.mood {
  gap: 10px;
}

.mood-step {
  min-height: 190px;
  padding: 28px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
}

.mood-step img {
  width: 54px;
  height: 54px;
  margin-bottom: 34px;
  object-fit: contain;
  background: var(--white);
  border: 1px solid rgb(17 17 15 / 16%);
  border-radius: 18px;
}

.mood-step strong {
  font-family: var(--display);
  font-size: 42px;
  font-weight: 500;
  letter-spacing: -0.055em;
}

.mood-step span {
  font-family: var(--mono);
  font-size: 9px;
  text-transform: uppercase;
}

.pack {
  min-height: 280px;
  padding: 30px;
}

.pack.featured {
  color: var(--ink);
  background: var(--gold);
  transform: none;
}

.pack small,
.pack.featured small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.06em;
}

.pack strong {
  margin-top: 60px;
  font-family: var(--display);
  font-size: 58px;
  font-weight: 500;
  letter-spacing: -0.07em;
}

.pack b,
.pack.featured b {
  color: var(--berry);
  font-size: 12px;
}

.resource-family {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.resource-family .card {
  min-height: 180px;
  padding: 28px;
}

.resource-family p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.reflection .card {
  min-height: 360px;
  padding: 30px;
  border-top-width: 1px;
}

.reflection .strength {
  background: #e5f0df;
}

.reflection .risk {
  background: #f6ddd5;
}

.reflection .finding {
  background: var(--gold);
}

.reflection ul {
  font-size: 13px;
  line-height: 1.55;
}

.closing {
  min-height: 82vh;
  color: var(--white);
  background: var(--ink);
  border-bottom: 0;
}

.closing .eyebrow {
  color: var(--white);
  border-color: rgb(255 255 255 / 22%);
}

.closing h2 {
  max-width: 1100px;
}

.closing .lead {
  color: rgb(250 249 245 / 65%);
}

.closing .pill {
  color: rgb(250 249 245 / 70%);
  background: rgb(255 255 255 / 6%);
  border-color: rgb(255 255 255 / 18%);
}

.footer {
  right: var(--page-pad);
  bottom: 28px;
  font-family: var(--mono);
  font-size: 8px;
}

@media (max-width: 900px) {
  .case-header {
    grid-template-columns: 1fr auto;
  }

  .case-header-links {
    display: none;
  }

  .rail.chapter-nav {
    display: flex;
  }

  .slide {
    padding: 90px var(--page-pad);
  }

  .hero-grid,
  .specialists,
  .data-panel-header,
  .split,
  .balance-grid,
  .example-pet {
    grid-template-columns: 1fr;
  }

  .hero-mark,
  .hero-pet-image {
    width: min(500px, 100%);
    margin: 0;
    aspect-ratio: 1.05;
  }

  .hero-pet-image {
    min-height: auto;
  }

  .hero-pet-image img {
    width: min(100%, 460px);
    max-height: 520px;
  }

  .loop,
  .roles,
  .stat-grid,
  .result-grid,
  .system-map,
  .formula-board,
  .food-insights,
  .merge-stats,
  .care-stats,
  .reflection,
  .mechanic-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .action-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .action-flow div:nth-child(2n) {
    border-right: 0;
  }

  .pet-screens {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .evolution {
    grid-template-columns: repeat(5, 150px);
  }
}

@media (max-width: 620px) {
  .case-header {
    min-height: 66px;
  }

  .case-wordmark strong {
    display: none;
  }

  .case-close {
    gap: 9px;
  }

  .progress {
    top: 66px;
  }

  .rail.chapter-nav {
    top: 66px;
  }

  h1 {
    font-size: clamp(50px, 15vw, 72px);
  }

  h2 {
    font-size: clamp(38px, 11vw, 52px);
  }

  #intro {
    min-height: auto;
  }

  .loop,
  .roles,
  .stat-grid,
  .result-grid,
  .system-map,
  .balance-grid,
  .formula-board,
  .example-pet,
  .food-insights,
  .merge-stats,
  .care-stats,
  .mood,
  .store,
  .resource-family,
  .reflection,
  .mechanic-grid {
    grid-template-columns: 1fr;
  }

  .pet-screens {
    grid-template-columns: 1fr;
  }

  .data-panel {
    padding: 18px;
  }

  .data-table {
    min-width: 680px;
    table-layout: auto;
  }

  .action-flow {
    grid-template-columns: 1fr;
  }

  .action-flow div {
    border-right: 0;
    border-bottom: 1px solid rgb(250 249 245 / 18%);
  }

  .action-flow div:last-child {
    border-bottom: 0;
  }

  .pet-row {
    grid-template-columns: 95px 1fr 32px;
  }

  .footer {
    position: static;
    margin-top: 70px;
  }
}