.page-kana .wrap {
  padding-top: 10px;
}

.page-kana .toc {
  margin-top: 18px;
}

.page-kana .grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.page-kana .kana-groups {
  display: grid;
  gap: 20px;
}

.page-kana .kana-group {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(237, 244, 255, 0.55) 0%, rgba(255, 255, 255, 0.96) 100%);
}

.page-kana .kana-group-title {
  margin: 0 0 6px;
  font-size: 1.05rem;
  color: var(--heading);
}

.page-kana .kana-group-note {
  margin: 0 0 14px;
  color: var(--text-muted);
  font-size: 0.94rem;
}

.page-kana .kana-card {
  position: relative;
  display: grid;
  justify-items: center;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 16px;
  padding: 18px 14px 16px;
  text-align: center;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.page-kana .kana-card:hover,
.page-kana .kana-card:focus-within {
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
  border-color: #bfdbfe;
}

.page-kana .kana-char {
  margin: 10px 0 10px;
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--heading);
}

.page-kana .kana-romaji {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-strong);
  font-size: 13px;
  font-weight: 700;
  text-transform: lowercase;
  letter-spacing: 0.02em;
}

.page-kana .kana-audio-button {
  position: absolute;
  top: 10px;
  right: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--primary-strong);
  font: inherit;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background-color 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease;
}

.page-kana .kana-audio-button:hover,
.page-kana .kana-audio-button:focus-visible {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}

.page-kana .kana-audio-button.is-disabled,
.page-kana .kana-audio-button:disabled {
  cursor: not-allowed;
  color: var(--text-muted);
  background: var(--surface-muted);
  border-color: var(--line);
  box-shadow: none;
  opacity: 0.72;
  transform: none;
}

@media (max-width: 1200px) {
  .page-kana .grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .page-kana .grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .page-kana .wrap {
    padding-top: 6px;
  }

  .page-kana .kana-group {
    padding: 14px;
  }

  .page-kana .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-kana .kana-char {
    font-size: 32px;
  }

  .page-kana .kana-audio-button {
    top: 8px;
    right: 8px;
    width: 34px;
    height: 34px;
  }
}

@media (max-width: 400px) {
  .page-kana .grid {
    grid-template-columns: 1fr;
  }
}