/* ===== Mobile landscape adaptation ===== */
@media (hover: none) and (pointer: coarse), (max-width: 900px), (max-height: 560px) {
  html,
  body {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    touch-action: manipulation;
  }

  :root {
    --dialogue-box-height: 36vh;
    --dialogue-padding: 16px 20px;
    --dialogue-font-size: 18px;
    --dialogue-line-height: 1.48;
    --name-plate-font-size: 16px;
  }

  .game-viewport {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    max-width: none;
    max-height: none;
  }

  .main-menu {
    padding: 18px max(18px, env(safe-area-inset-right)) 18px max(18px, env(safe-area-inset-left));
  }

  .menu-title {
    margin-bottom: 28px;
  }

  .game-title {
    font-size: 42px;
    letter-spacing: 7px;
    margin-bottom: 6px;
  }

  .game-subtitle {
    font-size: 15px;
    letter-spacing: 2px;
  }

  .menu-buttons {
    gap: 10px;
    width: min(260px, 58vw);
  }

  .menu-btn {
    padding: 11px 0;
    font-size: 17px;
    letter-spacing: 2px;
  }

  .game-hud {
    top: max(8px, env(safe-area-inset-top));
    right: max(10px, env(safe-area-inset-right));
    gap: 5px;
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: min(78vw, 560px);
  }

  .hud-btn {
    min-height: 32px;
    padding: 5px 9px;
    font-size: 14px;
    line-height: 1;
  }

  .dialogue-box {
    padding: var(--dialogue-padding);
    padding-top: 34px;
  }

  .name-plate {
    left: max(16px, env(safe-area-inset-left));
    padding: 6px 15px;
    border-radius: 0 0 6px 6px;
    letter-spacing: 1px;
  }

  .dialogue-text {
    max-height: calc(var(--dialogue-box-height) - 58px);
    overflow: hidden;
  }

  .click-indicator {
    right: max(14px, env(safe-area-inset-right));
    bottom: 10px;
    font-size: 16px;
  }

  .choice-overlay {
    padding: 56px 0 calc(var(--dialogue-box-height) + 12px);
  }

  .choice-container {
    width: min(82%, 620px);
    gap: 10px;
    padding: 2px 6px 6px;
  }

  .choice-card {
    min-height: 48px;
    padding: 12px 18px;
    font-size: 17px;
    line-height: 1.35;
  }

  .narrator-text {
    max-width: 76%;
    font-size: 22px;
    line-height: 1.65;
    letter-spacing: 1px;
  }

  .screen-header {
    padding: 12px 18px;
  }

  .screen-header h2 {
    font-size: 22px;
  }

  .close-btn {
    min-width: 40px;
    min-height: 40px;
    font-size: 22px;
    padding: 4px 10px;
  }

  .save-slots {
    grid-template-columns: 1fr 1fr;
    gap: 9px;
    padding: 12px 16px;
  }

  .save-slot {
    padding: 11px;
  }

  .slot-label {
    font-size: 15px;
  }

  .slot-date,
  .slot-preview {
    font-size: 13px;
  }

  .gallery-stats {
    padding: 8px;
    font-size: 15px;
  }

  .gallery-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 9px;
    padding: 12px 16px;
  }

  .gallery-label {
    padding: 5px 8px;
    font-size: 13px;
  }

  .settings-content {
    padding: 12px 18px;
  }

  .setting-row {
    gap: 12px;
    padding: 11px 0;
  }
}

@media (orientation: portrait) and (max-width: 900px) {
  .game-viewport {
    width: 100vh;
    width: 100dvh;
    height: 100vw;
    max-width: none;
    max-height: none;
    top: 50%;
    left: 50%;
    right: auto;
    bottom: auto;
    margin: 0;
    transform: translate(-50%, -50%) rotate(90deg);
    transform-origin: center center;
  }
}