/* 既存の案内ボタンに言語切替を並べ、狭い画面でも右上で操作できる幅を確保します。 */
.top {
  gap: 10px;
}
.brand {
  min-width: 0;
  flex: 1;
}
.brand > div:last-child {
  min-width: 0;
}
.brand-mark {
  flex-shrink: 0;
}
.brand-en {
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.language-toggle {
  min-height: 42px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.27);
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}
.language-toggle:hover {
  background: var(--panel-solid);
}
/* 英文の行間と折り返しを調整し、翻訳で長くなる操作名をボタン内に収めます。 */
html[lang="en"] .hero h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(29px, 8vw, 38px);
  letter-spacing: 0;
}
html[lang="en"] .sheet h3 {
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}
html[lang="en"] .my-card-actions button,
html[lang="en"] .use-button,
html[lang="en"] .material-add {
  height: auto;
  min-height: 44px;
  padding: 8px;
}
html[lang="en"] .material-option > div:nth-child(2) {
  min-width: 0;
  overflow-wrap: anywhere;
}
@media (max-width: 360px) {
  .brand {
    gap: 8px;
  }
  .brand-mark {
    width: 32px;
    height: 32px;
  }
  .brand-en {
    letter-spacing: 0.1em;
  }
}