.chord-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chord-card {
  display: grid;
  gap: 8px;
  padding: 14px 14px 12px;
  border: 1px solid oklch(0.74 0.1 78 / 0.55);
  border-radius: 14px;
  background: oklch(0.24 0.075 272);
  text-align: center;
}

.chord-card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 24px;
  height: 24px;
}

.chord-card svg {
  width: 100%;
  height: auto;
}

.chord-card .key-white { fill: oklch(0.96 0.01 85); stroke: oklch(0.3 0.05 272); stroke-width: 0.6; }
.chord-card .key-black { fill: oklch(0.2 0.03 272); }
.chord-card .key-white.on { fill: var(--brass-strong); }
.chord-card .key-black.on { fill: var(--brass); }

.chord-card p {
  margin: 0;
  color: oklch(0.86 0.02 80);
  font-size: 13px;
  letter-spacing: 0.02em;
}

@media (max-width: 600px) {
  .chord-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
}