:root {
  --page-width: 680px;
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #20242a;
  --muted: #666d78;
  --line: #dfe3e8;
  --accent: #f2aa2e;
  --accent-dark: #8f5a0b;
  --green: #32836b;
  --blue: #346da8;
  --shadow: 0 10px 24px rgba(18, 25, 38, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Pretendard", "Noto Sans KR", "Malgun Gothic", Arial, sans-serif;
  color: var(--text);
  background:
    linear-gradient(90deg, rgba(50, 131, 107, 0.08) 0 1px, transparent 1px 100%),
    linear-gradient(0deg, rgba(50, 131, 107, 0.06) 0 1px, transparent 1px 100%),
    var(--bg);
  background-size: 34px 34px;
}

html,
body {
  overflow-x: hidden;
}

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

.site-header {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 30px 28px 10px;
}

.site-header.with-back {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 25px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  position: relative;
  width: 54px;
  height: 54px;
  border-radius: 10px;
  background:
    linear-gradient(#7b5522 0 0) 17px 7px / 2px 40px no-repeat,
    linear-gradient(#7b5522 0 0) 27px 7px / 2px 40px no-repeat,
    linear-gradient(#7b5522 0 0) 37px 7px / 2px 40px no-repeat,
    linear-gradient(90deg, #7b5522 0 2px, transparent 2px 10px) 7px 17px / 40px 2px repeat-x,
    linear-gradient(90deg, #7b5522 0 2px, transparent 2px 10px) 7px 27px / 40px 2px repeat-x,
    linear-gradient(90deg, #7b5522 0 2px, transparent 2px 10px) 7px 37px / 40px 2px repeat-x,
    #f4c56d;
  border: 2px solid #d7942d;
  box-shadow: 0 8px 16px rgba(18, 25, 38, 0.12);
}

.brand-mark::after {
  content: "";
  position: absolute;
  right: -7px;
  top: -7px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #11151b;
  border: 3px solid #f7f3e8;
  box-shadow: 0 3px 8px rgba(18, 25, 38, 0.18);
}

.brand-mark::before {
  content: "";
  position: absolute;
  left: -6px;
  bottom: -6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #f7f3e8;
  border: 2px solid #d8d1bf;
  box-shadow: 0 3px 8px rgba(18, 25, 38, 0.14);
}

.home,
.detail-page {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 42px 28px 70px;
}

.detail-page {
  padding-top: 4px;
}

.home {
  padding-top: 26px;
}

.intro {
  max-width: 700px;
  margin-bottom: 26px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 15px;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: 0;
}

.home h1 {
  font-size: clamp(30px, 3.3vw, 42px);
}

.intro p:not(.eyebrow),
.hero-copy p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.game-card {
  min-height: 190px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 36px 46px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.game-card:hover,
.game-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(242, 170, 46, 0.75);
  box-shadow: 0 16px 28px rgba(18, 25, 38, 0.13);
  outline: none;
}

.game-card strong {
  display: block;
  margin-bottom: 22px;
  font-size: 30px;
  line-height: 1.25;
}

.game-card small {
  display: block;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.5;
}

.game-card em {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  margin-top: 24px;
  padding: 0 18px;
  border-radius: 10px;
  background: #16191f;
  color: #ffffff;
  font-size: 15px;
  font-style: normal;
  font-weight: 800;
}

.game-card:hover em,
.game-card:focus-visible em {
  background: var(--accent-dark);
}

.card-icon {
  flex: 0 0 auto;
  position: relative;
  width: 68px;
  height: 68px;
}

.board-icon {
  border-radius: 8px;
  background:
    linear-gradient(#7b5522 0 0) 18px 0 / 2px 100% no-repeat,
    linear-gradient(#7b5522 0 0) 34px 0 / 2px 100% no-repeat,
    linear-gradient(#7b5522 0 0) 50px 0 / 2px 100% no-repeat,
    linear-gradient(90deg, #7b5522 0 2px, transparent 2px 16px) 0 18px / 68px 2px repeat-x,
    linear-gradient(90deg, #7b5522 0 2px, transparent 2px 16px) 0 34px / 68px 2px repeat-x,
    linear-gradient(90deg, #7b5522 0 2px, transparent 2px 16px) 0 50px / 68px 2px repeat-x,
    #f4c56d;
  box-shadow: inset 0 0 0 3px #d99a35;
}

.stone-icon::before,
.stone-icon::after,
.ai-icon::before,
.ai-icon::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.stone-icon::before {
  width: 50px;
  height: 50px;
  left: 2px;
  top: 10px;
  background: #16191f;
  box-shadow: inset -7px -8px 14px rgba(255, 255, 255, 0.12);
}

.stone-icon::after {
  width: 34px;
  height: 34px;
  right: 0;
  top: 22px;
  background: #f6f3ea;
  box-shadow: inset -5px -6px 12px rgba(20, 24, 31, 0.18);
}

.chat-icon {
  border-radius: 16px;
  background: var(--blue);
}

.chat-icon::before,
.chat-icon::after,
.record-icon::before,
.record-icon::after,
.globe-icon::before,
.globe-icon::after {
  content: "";
  position: absolute;
}

.chat-icon::before {
  width: 42px;
  height: 6px;
  left: 13px;
  top: 20px;
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 14px 0 rgba(255, 255, 255, 0.78);
}

.chat-icon::after {
  right: 9px;
  bottom: -8px;
  border: 12px solid transparent;
  border-top-color: var(--blue);
  transform: rotate(-22deg);
}

.record-icon {
  border-radius: 50%;
  background: #f5efe3;
  box-shadow: inset 0 0 0 5px var(--accent);
}

.record-icon::before {
  width: 32px;
  height: 42px;
  left: 18px;
  top: 13px;
  border-radius: 4px;
  background: #ffffff;
  box-shadow: inset 0 0 0 2px #c4a36b;
}

.record-icon::after {
  width: 20px;
  height: 3px;
  left: 24px;
  top: 25px;
  border-radius: 4px;
  background: #7b5522;
  box-shadow: 0 9px 0 #7b5522, 0 18px 0 #7b5522;
}

.globe-icon {
  border-radius: 50%;
  background: #dcedff;
  box-shadow: inset 0 0 0 4px var(--blue);
}

.globe-icon::before {
  inset: 18px 5px;
  border-top: 3px solid var(--blue);
  border-bottom: 3px solid var(--blue);
}

.globe-icon::after {
  inset: 5px 21px;
  border-left: 3px solid var(--blue);
  border-right: 3px solid var(--blue);
  border-radius: 50%;
}

.ai-icon::before {
  width: 62px;
  height: 62px;
  left: 3px;
  top: 3px;
  background: #f8f4e9;
  box-shadow: inset 0 0 0 5px var(--green);
}

.ai-icon::after {
  width: 10px;
  height: 10px;
  left: 20px;
  top: 26px;
  background: #16191f;
  box-shadow: 19px 0 0 #16191f, 9px 18px 0 -2px var(--accent);
}

.oro-icon {
  border-radius: 50%;
  background: #fff8e6;
  box-shadow: inset 0 0 0 5px #d7422f;
}

.oro-icon::before,
.oro-icon::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.oro-icon::before {
  width: 40px;
  height: 40px;
  left: 14px;
  top: 14px;
  background: #11151b;
}

.oro-icon::after {
  width: 18px;
  height: 18px;
  right: 7px;
  bottom: 8px;
  background: #f7f3e8;
  border: 2px solid #d8d1bf;
}

.detail-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  align-items: center;
  margin-bottom: 22px;
}

.detail-hero > *,
.hero-copy,
.hero-panel,
.traffic-panel {
  min-width: 0;
  max-width: 100%;
}

.back-link {
  display: inline-flex;
  align-items: center;
  margin-bottom: 22px;
  color: var(--muted);
  font-weight: 700;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--text);
  outline: none;
}

.site-header .back-link {
  flex: 0 0 auto;
  margin-bottom: 0;
  font-size: 15px;
}

.hero-copy h1 {
  max-width: 720px;
}

.hero-panel {
  min-height: 0;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.93);
  box-shadow: var(--shadow);
}

.traffic-panel {
  width: 100%;
  display: grid;
  gap: 14px;
  padding: 22px;
  overflow: hidden;
}

.traffic-buttons {
  display: grid;
  gap: 14px;
}

.traffic-button {
  display: inline-flex;
  width: 100%;
  max-width: 100%;
  min-height: 68px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 12px;
  background: #16191f;
  color: #ffffff;
  font-size: 21px;
  font-weight: 800;
  text-align: center;
  word-break: keep-all;
  transition: transform 150ms ease, background 150ms ease;
}

.traffic-button.primary-red {
  background: #d9342b;
}

.traffic-button.secondary {
  background: var(--green);
}

.traffic-button:hover,
.traffic-button:focus-visible {
  transform: translateY(-2px);
  background: var(--accent-dark);
  outline: none;
}

.traffic-button.primary-red:hover,
.traffic-button.primary-red:focus-visible {
  background: #b8231e;
}

.manual-ad {
  min-height: 90px;
  margin-top: 10px;
  padding-top: 0;
  overflow: hidden;
}

.bottom-traffic-action {
  margin-top: 22px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.bottom-traffic-action .traffic-button {
  display: flex;
  width: min(100%, 420px);
  margin: 0 auto;
}

.large-board {
  width: 190px;
  height: 190px;
  border-radius: 14px;
  background:
    linear-gradient(#77511d 0 0) 38px 0 / 2px 100% no-repeat,
    linear-gradient(#77511d 0 0) 76px 0 / 2px 100% no-repeat,
    linear-gradient(#77511d 0 0) 114px 0 / 2px 100% no-repeat,
    linear-gradient(#77511d 0 0) 152px 0 / 2px 100% no-repeat,
    linear-gradient(90deg, #77511d 0 2px, transparent 2px 38px) 0 38px / 190px 2px repeat-x,
    linear-gradient(90deg, #77511d 0 2px, transparent 2px 38px) 0 76px / 190px 2px repeat-x,
    linear-gradient(90deg, #77511d 0 2px, transparent 2px 38px) 0 114px / 190px 2px repeat-x,
    linear-gradient(90deg, #77511d 0 2px, transparent 2px 38px) 0 152px / 190px 2px repeat-x,
    #efbd66;
  box-shadow: inset 0 0 0 5px #d28e25, 0 14px 26px rgba(18, 25, 38, 0.13);
}

.large-board::before,
.large-board::after {
  content: "";
  position: absolute;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.info-section,
.quick-box {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.info-section {
  padding: 34px;
}

.info-section + .info-section {
  margin-top: 22px;
}

.info-section h2,
.quick-box h2 {
  margin: 0 0 18px;
  font-size: 25px;
  line-height: 1.35;
}

.info-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.info-list li {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 12px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.info-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.quick-box {
  align-self: start;
  padding: 30px;
}

.meta-list {
  display: grid;
  gap: 14px;
  margin: 0 0 26px;
}

.meta-list div {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid #edf0f3;
}

.meta-list dt {
  color: var(--muted);
  font-weight: 700;
}

.meta-list dd {
  margin: 0;
  text-align: right;
  font-weight: 800;
}

.primary-button {
  display: inline-flex;
  width: 100%;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: #16191f;
  color: #ffffff;
  font-weight: 800;
  transition: transform 150ms ease, background 150ms ease;
}

.primary-button.is-static {
  background: #f3f5f7;
  color: var(--text);
  cursor: default;
}

.primary-button:hover,
.primary-button:focus-visible {
  transform: translateY(-2px);
  background: #2d333d;
  outline: none;
}

.primary-button.is-static:hover {
  transform: none;
  background: #f3f5f7;
}

.note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.site-footer {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 0 28px 34px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.footer-inner {
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.footer-inner strong {
  color: var(--text);
  font-weight: 800;
}

@media (max-width: 820px) {
  .home,
  .detail-page {
    padding-inline: 18px;
  }

  .site-header {
    padding-inline: 18px;
  }

  .site-header.with-back {
    align-items: center;
    flex-direction: row;
    gap: 10px;
  }

  .site-footer {
    padding-inline: 18px;
  }

  .game-card {
    min-height: 160px;
    padding: 28px;
  }

  .game-card strong {
    font-size: 25px;
  }

  .game-card small {
    font-size: 16px;
  }

  .game-card em {
    min-height: 38px;
    margin-top: 18px;
    padding-inline: 15px;
  }

  .card-icon {
    width: 56px;
    height: 56px;
  }
}

@media (max-width: 520px) {
  .brand {
    font-size: 21px;
    gap: 10px;
    white-space: nowrap;
  }

  .brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    background:
      linear-gradient(#7b5522 0 0) 14px 6px / 2px 32px no-repeat,
      linear-gradient(#7b5522 0 0) 22px 6px / 2px 32px no-repeat,
      linear-gradient(#7b5522 0 0) 30px 6px / 2px 32px no-repeat,
      linear-gradient(90deg, #7b5522 0 2px, transparent 2px 8px) 6px 14px / 32px 2px repeat-x,
      linear-gradient(90deg, #7b5522 0 2px, transparent 2px 8px) 6px 22px / 32px 2px repeat-x,
      linear-gradient(90deg, #7b5522 0 2px, transparent 2px 8px) 6px 30px / 32px 2px repeat-x,
      #f4c56d;
  }

  .brand-mark::after {
    right: -6px;
    top: -6px;
    width: 19px;
    height: 19px;
  }

  .brand-mark::before {
    left: -5px;
    bottom: -5px;
    width: 16px;
    height: 16px;
  }

  .site-header .back-link {
    margin-left: auto;
    white-space: nowrap;
    font-size: 14px;
  }

  h1 {
    font-size: 34px;
  }

  .game-card {
    align-items: flex-start;
    padding: 24px;
  }

  .card-icon {
    width: 44px;
    height: 44px;
  }

  .info-section,
  .quick-box {
    padding: 24px;
  }
}