:root {
  color-scheme: light;
  --paper: #fff9df;
  --paper-deep: #f5edc7;
  --banana: #f4c430;
  --banana-dark: #d99a13;
  --leaf: #397629;
  --leaf-dark: #214d1b;
  --berry: #b83842;
  --brown: #68430b;
  --ink: #282319;
  --muted: #665f52;
  --line: rgba(77, 66, 35, 0.24);
  --surface: rgba(255, 255, 255, 0.72);
  --link: #145da0;
}

.field-notes-link { padding-block: 18px; font-weight: 700; }
.merge-lab { border-block: 2px solid var(--leaf); padding-block: 24px; }
.merge-lab__inputs { display: flex; flex-wrap: wrap; gap: 16px; }
.merge-lab__inputs label { display: grid; gap: 6px; flex: 1 1 190px; font-weight: 700; }
.merge-lab__inputs select { min-height: 48px; width: 100%; padding: 8px 12px; font: inherit; color: var(--ink); background: white; border: 1px solid var(--leaf-dark); border-radius: 4px; }
.merge-lab__result { margin-top: 20px; padding: 16px; background: #e6f2e5; border-left: 4px solid var(--leaf); }
.merge-lab__result dl { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 12px; margin: 0; }
.merge-lab__result dt { font-size: 14px; }
.merge-lab__result dd { margin: 4px 0 0; font-size: 20px; font-weight: 700; }
.board-lesson { display: grid; grid-template-columns: minmax(0, 1fr) minmax(200px, 310px); gap: 32px; align-items: center; padding-block: 28px; border-bottom: 1px solid var(--line); }
.board-lesson video { display: block; width: 100%; height: auto; aspect-ratio: 564 / 750; background: #19332a; }
.board-lesson h3 { font-size: 24px; line-height: 1.35; }
@media (max-width: 650px) {
  .board-lesson { grid-template-columns: minmax(0,1fr); gap: 12px; }
  .board-lesson video { max-width: 310px; margin-inline: auto; }
  .merge-lab__result dl { grid-template-columns: minmax(0,1fr); }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper-deep);
  color: var(--ink);
  font-family: Arial, "Noto Sans KR", "Noto Sans", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

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

a {
  color: var(--link);
  text-underline-offset: 3px;
}

a:focus-visible,
summary:focus-visible,
select:focus-visible {
  outline: 3px solid #2368bd;
  outline-offset: 3px;
  border-radius: 4px;
}

.site-header {
  border-bottom: 3px solid var(--leaf-dark);
  background: rgba(255, 249, 223, 0.98);
}

.site-header__inner,
main,
.site-footer__inner {
  width: min(980px, calc(100% - 32px));
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-block: 10px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--brown);
  font-size: 20px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 44px;
  height: 44px;
  border: 2px solid var(--brown);
  border-radius: 8px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px 15px;
  font-size: 14px;
  font-weight: 700;
  align-items: center;
  flex: 1 1 480px;
}

.site-language {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  max-width: 100%;
  flex-wrap: wrap;
}

.site-language select {
  width: 132px;
  max-width: 100%;
  min-height: 44px;
  padding: 8px 30px 8px 10px;
  border: 1px solid #64735b;
  border-radius: 4px;
  background: #fff;
  color: #222;
  font: inherit;
}

.site-language noscript { flex: 1 1 100%; line-height: 2; }

.site-nav a[href="/play"] {
  color: #aa1227;
  font-weight: 900;
  text-decoration-thickness: 2px;
}

.site-nav a[aria-current="page"] {
  color: var(--leaf-dark);
  text-decoration-thickness: 3px;
}

main {
  min-height: calc(100vh - 170px);
  padding-block: 42px 64px;
}

.home-hero {
  position: relative;
  display: flex;
  min-height: min(580px, calc(100svh - 72px));
  align-items: flex-end;
  overflow: hidden;
  border-bottom: 4px solid var(--leaf-dark);
  background-color: #2d521f;
  background-image: url("/media/core-gameplay.png");
  background-position: center 42%;
  background-size: cover;
  isolation: isolate;
}

.home-hero::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: rgba(20, 25, 12, 0.63);
  content: "";
}

.home-hero__inner {
  width: min(980px, calc(100% - 32px));
  margin-inline: auto;
  padding-block: 78px 64px;
  color: #fffdf2;
}

.home-hero .eyebrow,
.home-hero h1,
.home-hero__lead {
  color: #fffdf2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.76);
}

.home-hero h1 {
  max-width: 760px;
  font-size: 64px;
}

.home-hero__lead {
  max-width: 760px;
  margin-bottom: 10px;
  font-size: 22px;
  font-weight: 700;
}

.play-loop {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  border: 2px solid var(--leaf-dark);
  background: var(--leaf-dark);
  list-style: none;
}

.play-loop li {
  min-width: 0;
  padding: 16px;
  background: var(--paper);
}

.play-loop strong,
.play-loop span {
  display: block;
}

.play-loop strong {
  margin-bottom: 5px;
  color: var(--brown);
  font-size: 18px;
}

.play-loop span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.resource-links {
  border-top: 2px solid var(--leaf-dark);
}

.resource-links a {
  display: grid;
  grid-template-columns: minmax(190px, 0.38fr) minmax(0, 1fr);
  gap: 18px;
  padding: 17px 8px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}

.resource-links a:hover strong,
.resource-links a:focus-visible strong {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.resource-links span {
  color: var(--muted);
}

.hero {
  padding: 22px 0 30px;
  border-bottom: 2px solid var(--line);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--leaf-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: #302208;
  line-height: 1.25;
  letter-spacing: 0;
}

h1 {
  margin: 0 0 16px;
  font-size: 48px;
}

h2 {
  margin: 44px 0 16px;
  font-size: 30px;
}

h3 {
  margin: 0 0 7px;
  font-size: 19px;
}

p,
ul,
ol {
  margin-block: 0 16px;
}

.lead {
  max-width: 760px;
  color: #41392c;
  font-size: 21px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
  align-items: center;
}

.store-links,
.article-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  margin-top: 24px;
}

.store-links a {
  padding-block: 6px;
  color: #fffdf2;
  font-size: 18px;
  font-weight: 700;
}

.store-links span {
  display: block;
  font-size: 14px;
  font-weight: 400;
}

caption {
  padding-bottom: 12px;
  text-align: left;
  font-weight: 700;
}

section[id] {
  scroll-margin-top: 20px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border: 3px solid var(--brown);
  border-radius: 7px;
  background: var(--banana);
  color: #342204;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 3px 0 var(--brown);
}

.button:hover {
  background: #ffda54;
}

.button--play {
  min-height: 72px;
  min-width: min(280px, 100%);
  max-width: 100%;
  gap: 14px;
  padding: 14px 20px;
  border-color: #741121;
  background: #bc1830;
  color: #fff;
  font-size: 25px;
  line-height: 1.25;
  text-align: center;
  box-shadow: 0 5px 0 #741121;
  transition: background-color 120ms, transform 120ms, box-shadow 120ms;
}

.button--play::before {
  content: "";
  display: block;
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  background: currentColor;
  mask: url("/media/play.svg") center / contain no-repeat;
}

.button--play:hover { background: #d2233c; }
.button--play:active { transform: translateY(3px); box-shadow: 0 2px 0 #741121; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button--play { transition: none; }
}

.button--secondary {
  background: #fffdf2;
}

.feature-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(230px, 0.8fr);
  align-items: center;
  gap: 34px;
  margin-top: 34px;
}

.feature-layout--reverse {
  grid-template-columns: minmax(230px, 0.8fr) minmax(0, 1.2fr);
}

.feature-layout h2 {
  margin-top: 0;
}

.screenshot {
  margin: 0;
}

.screenshot img {
  width: min(100%, 350px);
  margin-inline: auto;
  border: 2px solid var(--leaf-dark);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 8px 0 rgba(33, 77, 27, 0.14);
}

.screenshot figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

.fact-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 0;
}

.fact-list div {
  padding: 15px;
  border-top: 4px solid var(--leaf);
  background: rgba(255, 255, 255, 0.56);
}

.fact-list dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.fact-list dd {
  margin: 3px 0 0;
  color: var(--brown);
  font-weight: 800;
}

.merge-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px;
  border: 2px solid var(--leaf);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.66);
}

.merge-chain span {
  padding: 3px 8px;
  border-bottom: 3px solid var(--banana-dark);
  font-weight: 800;
}

.merge-chain b {
  color: var(--berry);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.68);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: rgba(57, 118, 41, 0.12);
  color: var(--leaf-dark);
}

tr:last-child td {
  border-bottom: 0;
}

.faq-list {
  border-top: 2px solid var(--leaf-dark);
}

.faq-item {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.45);
}

.faq-item summary {
  cursor: pointer;
  padding: 18px 8px;
  color: #352508;
  font-weight: 800;
}

.faq-item div {
  padding: 0 8px 18px;
}

.faq-item p:last-child {
  margin-bottom: 0;
}

.update-entry {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 22px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.update-entry h2 {
  margin: 0;
  font-size: 23px;
}

.version-tag {
  color: var(--leaf-dark);
  font-weight: 800;
}

.language-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  list-style: none;
}

.language-list li {
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.58);
}

.updated,
.meta-note {
  color: var(--muted);
  font-size: 14px;
}

.policy-section {
  padding-top: 4px;
}

.policy-section ul,
.content-list {
  padding-left: 24px;
}

.notice {
  margin: 24px 0;
  padding: 18px 20px;
  border-left: 6px solid var(--banana-dark);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.72);
}

.site-footer {
  border-top: 2px solid var(--leaf-dark);
  background: rgba(255, 249, 223, 0.96);
  color: var(--muted);
  font-size: 14px;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 18px;
  padding-block: 22px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 760px) {
  .brand { font-size: 18px; gap: 8px; }
  .brand img { width: 36px; height: 36px; }
  .site-language select { width: 128px; padding-right: 18px; }
  .home-hero .store-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 16px; }
  .home-hero .actions { margin-top: 18px; }
  .home-hero .store-links a { font-size: 16px; line-height: 1.4; }
  .home-hero .store-links span { padding-top: 4px; }
  .site-header__inner {
    align-items: center;
    gap: 10px 14px;
  }

  .site-language {
    order: 1;
    margin-left: auto;
  }

  .site-language label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }

  .site-nav {
    order: 2;
    flex-basis: 100%;
    justify-content: flex-start;
  }

  main {
    padding-block: 25px 46px;
  }

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 26px;
  }

  .lead {
    font-size: 19px;
  }

  .feature-layout,
  .feature-layout--reverse,
  .grid {
    grid-template-columns: 1fr;
  }

  .home-hero {
    min-height: 0;
    background-position: center 36%;
  }

  .home-hero__inner {
    padding-block: 20px;
  }

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

  .play-loop {
    grid-template-columns: 1fr;
  }

  .resource-links a {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .feature-layout--reverse .screenshot {
    order: 2;
  }

  .fact-list {
    grid-template-columns: 1fr;
  }

  .update-entry {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 430px) {
  .site-header__inner { column-gap: 6px; }
  .site-language select { width: 106px; padding-inline: 8px 20px; }
  body {
    font-size: 16px;
  }

  .site-header__inner,
  main,
  .site-footer__inner {
    width: min(100% - 22px, 980px);
  }

  .site-nav {
    gap: 6px 12px;
  }

  h1 {
    font-size: 32px;
  }

  .home-hero__inner {
    width: min(100% - 22px, 980px);
  }

  .home-hero h1 {
    font-size: 42px;
  }

  .home-hero__lead {
    font-size: 18px;
  }

  .merge-chain {
    align-items: flex-start;
    flex-direction: column;
  }
}