.play-reference {
  min-width: 10rem;
  margin: 0;
  padding: 0.8rem;
  border: 1px solid var(--line, rgba(255, 255, 255, 0.15));
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.035);
}

.play-reference-label {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--accent-strong, #7fe6ea);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.beginner-chord-list,
.play-reference-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr));
  gap: 0.65rem;
}

.beginner-chord {
  min-width: 0;
  margin: 0;
  padding: 0.7rem;
  border: 1px solid var(--line, rgba(255, 255, 255, 0.15));
  border-radius: 0.8rem;
}

.play-reference .beginner-chord { padding: 0; border: 0; }
.beginner-chord-name { margin-bottom: 0.5rem; font-weight: 900; font-size: 1.1rem; }

.beginner-chord-head,
.beginner-chord-neck {
  display: grid;
  grid-template-columns: 1.8rem minmax(0, 1fr);
  column-gap: 0.45rem;
}

.beginner-chord-head { align-items: end; }
.beginner-chord-fret-title {
  padding-bottom: 0.25rem;
  color: var(--muted, #aab3c0);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-align: right;
  text-transform: uppercase;
}
.beginner-chord-status {
  position: relative;
  min-height: 1.4rem;
  font-size: 0.8rem;
}
.beginner-chord-status span {
  position: absolute;
  left: calc(var(--string-position) * 20%);
  bottom: 0.2rem;
  min-width: 1rem;
  font-weight: 800;
  line-height: 1;
  text-align: center;
  transform: translateX(-50%);
}
.beginner-chord-fret-numbers {
  display: grid;
  height: 5.5rem;
  grid-template-rows: repeat(4, minmax(0, 1fr));
  color: var(--muted, #aab3c0);
  font-size: 0.68rem;
  font-weight: 800;
  text-align: right;
}
.beginner-chord-fret-numbers span {
  display: grid;
  place-items: center end;
}
.beginner-chord-grid {
  position: relative;
  height: 5.5rem;
  box-sizing: border-box;
  border-top: 0.22rem solid currentColor;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 calc(25% - 0.5px),
    rgba(255,255,255,.26) calc(25% - 0.5px) calc(25% + 0.5px),
    transparent calc(25% + 0.5px) 25%
  );
}

.beginner-chord-string {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--string-position) * 20%);
  z-index: 1;
  width: 0;
  border-left: 1px solid rgba(255, 255, 255, 0.55);
}
.beginner-chord-string b {
  position: absolute;
  top: calc((var(--fret) - 0.5) * 25%);
  left: 0;
  display: grid;
  width: 1.05rem;
  height: 1.05rem;
  place-items: center;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  color: #111827;
  font-size: 0.65rem;
  background: var(--accent, #ffca6a);
}

.beginner-chord-key {
  display: grid;
  gap: 0.15rem;
  margin: 0.55rem 0 0 2.25rem;
  color: var(--muted, #aab3c0);
  font-size: 0.66rem;
  line-height: 1.35;
}
.beginner-chord-note { margin: 0.6rem 0 0; color: var(--muted, #aab3c0); font-size: 0.74rem; line-height: 1.4; }
.bass-root-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr)); gap: 0.55rem; }
.bass-root-card { display: grid; gap: 0.15rem; padding: 0.7rem; border: 1px solid var(--line, rgba(255, 255, 255, 0.15)); border-radius: 0.75rem; background: rgba(255, 255, 255, 0.035); }
.play-reference .bass-root-card { padding: 0; border: 0; background: transparent; }
.bass-root-card strong { font-size: 1.5rem; }

@media (max-width: 620px) {
  .play-reference { width: 100%; }
  .beginner-chord.is-compact { max-width: 15rem; }
}