/* よりみち: EDMを学ぼう（yorimichi/edm.html） */
.theme-edm {
  --ym-bg: #faf8ff;
  --ym-bg-2: #f3effd;
  --ym-line: #e4dcf7;
  --ym-accent: #6c4ce0;
  --ym-accent-glow: #9b7dff;
  --ym-accent-soft: #ece6ff;
  --ym-chip: #f6f3ff;
  --ym-highlight: #00b8d9;
  --ym-highlight-text: #00809a;
  --ym-shadow: rgba(60, 40, 120, 0.07);
}

/* ビート体験 */
.edm-beat {
  max-width: 880px;
  margin: 0 auto;
  background: var(--ym-panel);
  border: 1px solid var(--ym-line);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 3px 10px var(--ym-shadow);
}

.edm-beat-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.edm-play,
.edm-presets button {
  font: inherit;
  cursor: pointer;
  border-radius: 999px;
  border: 2px solid var(--ym-accent);
  transition: background 0.15s, color 0.15s;
}

.edm-play {
  background: var(--ym-accent);
  color: #fff;
  font-weight: 700;
  padding: 8px 24px;
}

.edm-play[aria-pressed="true"] {
  background: var(--ym-panel);
  color: var(--ym-accent);
}

.edm-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.edm-presets button {
  background: var(--ym-panel);
  color: var(--ym-accent);
  font-size: 0.85rem;
  padding: 6px 14px;
}

.edm-presets button:hover {
  background: var(--ym-accent-soft);
}

.edm-play:focus-visible,
.edm-presets button:focus-visible,
.edm-cell:focus-visible {
  outline: 2px solid var(--ym-highlight);
  outline-offset: 2px;
}

.edm-grid {
  display: grid;
  gap: 8px;
}

.edm-row {
  display: grid;
  grid-template-columns: 96px repeat(16, 1fr);
  gap: 4px;
  align-items: center;
}

.edm-row-label {
  font-size: 0.85rem;
  font-weight: 700;
}

.edm-row-label small {
  display: block;
  font-family: var(--ym-mono);
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--ym-muted);
}

.edm-cell {
  aspect-ratio: 1;
  border-radius: 5px;
  border: 1px solid var(--ym-line);
  background: var(--ym-chip);
  cursor: pointer;
  padding: 0;
  transition: background 0.1s, transform 0.1s;
}

/* 4マスごと（1拍ごと）に区切りを見せる */
.edm-cell.is-beat {
  border-color: #cfc3f0;
}

.edm-cell[aria-pressed="true"] {
  background: var(--ym-accent);
  border-color: var(--ym-accent);
}

.edm-cell.is-now {
  transform: scale(1.12);
  box-shadow: 0 0 0 2px var(--ym-highlight);
}

.edm-cell[aria-pressed="true"].is-now {
  background: var(--ym-highlight);
  border-color: var(--ym-highlight);
}

.edm-code {
  margin: 20px 0 0;
}

@media (max-width: 768px) {
  .edm-beat {
    padding: 16px;
  }

  .edm-row {
    grid-template-columns: repeat(8, 1fr);
    row-gap: 4px;
  }

  /* スマホでは16マスを8マス×2段に折り返す */
  .edm-row-label {
    grid-column: 1 / -1;
  }
}