.pl {
  --pl-ok: var(--ok, #2e7d32);
  --pl-bad: var(--bad, #c62828);
  --pl-accent: var(--accent, #2f5d8a);
  --pl-line: var(--line, #e2ddd3);
  --pl-muted: var(--muted, #6b7280);
  --pl-radius: var(--radius, 8px);
  font-family: system-ui, sans-serif;
  color: var(--ink, #1f2328);
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 1100px;
}
.pl h2, .pl h3, .pl p { margin: 0; }
.pl-title { font-size: 1.35rem; }
.pl-instructions { color: var(--pl-muted); line-height: 1.5; }
.pl-muted { color: var(--pl-muted); font-size: 0.9rem; }
.pl-hint { color: var(--pl-muted); font-size: 0.85rem; margin-top: -6px; }

.pl-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
}
.pl-group { display: flex; align-items: center; gap: 8px; }
.pl-spacer { margin-left: auto; }
.pl-seg .pl-btn { border-radius: 0; }
.pl-seg .pl-btn:first-child { border-radius: var(--pl-radius) 0 0 var(--pl-radius); }
.pl-seg .pl-btn:last-child { border-radius: 0 var(--pl-radius) var(--pl-radius) 0; margin-left: -1px; }
.pl-seg .pl-btn[aria-pressed="true"] { background: var(--pl-accent); border-color: var(--pl-accent); color: #fff; }
.pl-bpm { min-width: 2.2em; text-align: center; font-variant-numeric: tabular-nums; font-weight: 600; font-size: 1.1rem; }
.pl-select { font: inherit; padding: 4px 6px; border: 1px solid var(--pl-line); border-radius: 6px; background: #fff; }

.pl-btn {
  font: inherit;
  padding: 7px 16px;
  border: 1px solid #c9c2b4;
  border-radius: var(--pl-radius);
  background: #fff;
  color: inherit;
  cursor: pointer;
}
.pl-btn:hover:not(:disabled) { border-color: var(--pl-accent); }
.pl-btn:disabled { opacity: 0.45; cursor: default; }
.pl-primary { background: var(--pl-accent); border-color: var(--pl-accent); color: #fff; }

.pl-card {
  background: var(--card, #fff);
  border: 1px solid var(--pl-line);
  border-radius: var(--pl-radius);
  padding: 8px 16px 14px;
}
.pl-bar { display: flex; align-items: center; gap: 16px; min-height: 2.4rem; }
.pl-count { display: inline-flex; gap: 12px; }
.pl-count span {
  font-size: 1.5rem;
  font-weight: 700;
  color: #c9c2b4;
  min-width: 1ch;
  text-align: center;
}
.pl-count span.on { color: var(--pl-accent); }
.pl-status { color: var(--pl-muted); }
.pl-scorebox { overflow-x: auto; }

.pl-kb { padding: 0 2px; }
.kb { position: relative; height: 110px; user-select: none; }
.kb-key { position: absolute; top: 0; box-sizing: border-box; text-align: center; }
.kb-white {
  height: 100%;
  background: #fff;
  border: 1px solid #b9b2a3;
  border-radius: 0 0 4px 4px;
}
.kb-black {
  height: 62%;
  background: #2b2b2b;
  border-radius: 0 0 3px 3px;
  z-index: 1;
}
.kb-mc {
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  border-radius: 50%;
  background: #c9c2b4;
}
.kb-finger {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  font: 700 0.85rem system-ui, sans-serif;
  color: #fff;
}
.kb-black .kb-finger { bottom: 6px; }
.kb-key.is-next { background: var(--pl-accent, #2f5d8a); }
.kb-key.is-down { background: #8fb3d9; }
.kb-black.is-down { background: #4a6f96; }
.kb-key.is-bad { background: var(--pl-bad, #c62828); }

.pl-result {
  background: var(--card, #fff);
  border: 1px solid var(--pl-line);
  border-radius: var(--pl-radius);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pl-result[hidden] { display: none; }
.pl-stats { display: flex; flex-wrap: wrap; gap: 28px; }
.pl-stat { display: flex; flex-direction: column; }
.pl-stat-value { font-size: 1.7rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.pl-even { display: flex; align-items: center; gap: 10px; }
.pl-track { flex: 0 1 260px; width: 260px; height: 10px; background: #ece7dc; border-radius: 5px; overflow: hidden; }
.pl-fill { display: block; height: 100%; background: var(--pl-accent); }
.pl-actions { display: flex; gap: 10px; }