* { box-sizing: border-box; }

.mahjong-page {
  min-width: 320px;
  background: #052b1c;
}

.mahjong-page .site-header {
  position: relative;
}

.mahjong-stage {
  width: 100%;
  background: #172d38;
  border-bottom: 1px solid rgba(212, 175, 55, 0.35);
}

.mahjong-game-bar {
  min-height: 68px;
  padding: 10px clamp(16px, 4vw, 56px);
  display: flex;
  align-items: center;
  gap: 18px;
  color: #f5f0e6;
  background: linear-gradient(90deg, #0a3928, #11583f);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.mahjong-heading {
  min-width: 0;
}

.mahjong-heading h1 {
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  line-height: 1.15;
}

.mahjong-heading p {
  margin-top: 3px;
  font-size: 0.82rem;
  line-height: 1.3;
  opacity: 0.78;
}

.mahjong-title-tile {
  width: 42px;
  height: 50px;
  flex: none;
  display: grid;
  place-items: center;
  color: #b51e2d;
  background: #fff9e5;
  border: 2px solid #c7b886;
  border-radius: 6px;
  box-shadow: 3px 3px 0 #2c6754;
  font: 700 1.7rem/1 Georgia, serif;
}

.fullscreen-btn {
  margin-left: auto;
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  padding: 8px 14px;
  color: #f5f0e6;
  background: rgba(255, 255, 255, 0.08);
  font: 700 0.82rem/1 'Segoe UI', system-ui, sans-serif;
  cursor: pointer;
}

.fullscreen-btn:hover,
.fullscreen-btn:focus-visible {
  color: #2a2005;
  background: #d4af37;
  border-color: #d4af37;
  outline: none;
}

.mahjong-frame-wrap {
  height: clamp(620px, calc(100svh - 139px), 920px);
  background: #2b424f;
}

.mahjong-frame-wrap:fullscreen {
  height: 100%;
}

.mahjong-frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: #2b424f;
}

.mahjong-info {
  max-width: 980px;
  margin: 0 auto;
  padding: 58px 5vw 24px;
}

.mahjong-info > p {
  max-width: 720px;
  margin: 0 auto 34px;
  text-align: center;
  opacity: 0.84;
}

.mahjong-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.mahjong-panel {
  padding: 26px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(212, 175, 55, 0.25);
  border-radius: 14px;
}

.mahjong-panel h2,
.mahjong-panel h3 {
  margin-bottom: 12px;
  color: #d4af37;
  text-align: left;
}

.mahjong-panel h2 { font-size: 1.25rem; }
.mahjong-panel h3 { margin-top: 22px; font-size: 1rem; }
.mahjong-panel p { margin-bottom: 12px; font-size: 0.94rem; opacity: 0.86; }
.mahjong-panel ul { margin-left: 1.2rem; }
.mahjong-panel li { margin: 7px 0; font-size: 0.92rem; opacity: 0.86; }

.mahjong-faq {
  max-width: 980px;
  margin: 0 auto;
  padding: 42px 5vw 20px;
}

.mahjong-faq details {
  margin: 10px 0;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}

.mahjong-faq summary { color: #d4af37; font-weight: 700; cursor: pointer; }
.mahjong-faq details p { margin-top: 10px; opacity: 0.84; }
.mahjong-credit { margin-top: 12px; }
.mahjong-credit a,
.mahjong-page .site-footer > p > a { color: #d4af37; }

@media (max-width: 720px) {
  .mahjong-game-bar { min-height: 62px; gap: 12px; }
  .mahjong-heading p { display: none; }
  .mahjong-title-tile { width: 36px; height: 42px; font-size: 1.4rem; }
  .fullscreen-btn span { display: none; }
  .fullscreen-btn { width: 40px; height: 40px; justify-content: center; padding: 0; font-size: 1rem; }
  .mahjong-frame-wrap { height: clamp(580px, calc(100svh - 123px), 820px); }
  .mahjong-columns { grid-template-columns: 1fr; }
}

@media (max-height: 620px) and (orientation: landscape) {
  .mahjong-frame-wrap { height: 520px; }
}

@media (max-width: 500px) {
  .mahjong-page .site-header {
    gap: 12px;
    padding: 10px 16px;
  }
  .mahjong-page .brand {
    font-size: 1.05rem;
    white-space: nowrap;
  }
  .mahjong-page .brand-logo {
    width: 34px;
    height: 34px;
    margin-right: 7px;
  }
  .mahjong-page .nav-cta {
    padding: 8px 15px;
    font-size: 0.88rem;
    white-space: nowrap;
  }
}

/* Focused mobile play view: keep site navigation and consent from covering the board. */
@media (max-width: 720px) {
  .mahjong-page .site-header {
    display: none;
  }

  .mahjong-game-bar {
    min-height: 52px;
    padding: 5px 10px;
    gap: 8px;
  }

  .mahjong-heading h1 {
    font-size: 1.08rem;
    white-space: nowrap;
  }

  .mahjong-title-tile {
    width: 32px;
    height: 38px;
    font-size: 1.25rem;
    text-decoration: none;
  }

  .mahjong-frame-wrap {
    height: max(440px, calc(100svh - 52px));
    min-height: 0;
    max-height: none;
  }

  .mahjong-page:has(.cookie-banner:not([hidden])) .mahjong-frame-wrap {
    height: max(430px, calc(100svh - 116px));
  }
}

@media (max-width: 480px) {
  .mahjong-page .cookie-banner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 6px;
    padding: 7px 9px;
    font-size: 0.72rem;
    line-height: 1.2;
  }

  .mahjong-page .cookie-banner[hidden] {
    display: none;
  }

  .mahjong-page .cookie-banner p {
    max-width: none;
  }

  .mahjong-page .cookie-banner-actions {
    width: auto;
    gap: 4px;
  }

  .mahjong-page .cookie-banner-actions button {
    flex: 0 0 auto;
    padding: 7px 9px;
    font-size: 0.74rem;
    line-height: 1;
  }
}