.tuning-link[aria-current="page"] {
  color: var(--green-dark);
  text-decoration: underline;
  text-underline-offset: 6px;
}

.tuning-page {
  max-width: 930px;
  margin: 0 auto;
}

.tuning-page .page-heading {
  padding-bottom: 25px;
}

.tuning-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 18px;
}

.tuning-toolbar > div {
  display: grid;
  gap: 7px;
}

.tuning-toolbar .eyebrow {
  font-size:12px;
}

.tuning-toolbar p {
  margin: 0;
  font-size:14.3px;
  line-height: 1.6;
  color: var(--muted);
}

#tuning-preset {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--green-dark);
  font-size:15.6px;
  font-weight: 850;
  margin: 0;
}

#tuning-preset::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

#tuning-reset {
  min-height: 42px;
}

.tuning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tuning-string {
  min-width: 0;
  padding: 21px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 13px;
  box-shadow: 0 3px 0 var(--jgg-border);
  text-align: center;
  transition: border-color .15s, background .15s;
}

.tuning-string.is-playing {
  background: var(--jgg-selected);
  border-color: var(--jgg-border);
}

.tuning-string-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin: 0 0 13px;
  font-size:14.3px;
  line-height: 1.6;
  font-weight: 850;
  color: var(--jgg-text-muted);
}

.tuning-string-heading h3 {
  margin: 0;
  font: inherit;
}

.tuning-pitch {
  display: block;
  margin: 0;
  font-size:59.8px;
  line-height: 1.1;
  letter-spacing: -1.5px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  color: var(--navy);
}

.tuning-frequency {
  display: block;
  margin: 7px 0 15px;
  color: var(--muted);
  font-size:14.3px;
  font-variant-numeric: tabular-nums;
}

.tuning-adjust {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 0 14px;
}

.tuning-adjust button {
  display: grid;
  place-items: center;
  flex: 0 0 44px;
  min-height: 44px;
  border: 1px solid var(--jgg-control-border);
  border-radius: 50%;
  background: var(--jgg-selected);
  color: var(--green-dark);
  font-size:28.6px;
  line-height: 1;
}

.tuning-adjust button:hover:not(:disabled) {
  border-color: var(--jgg-control-border);
  background: var(--green-soft);
}

.tuning-offset {
  color: var(--jgg-text-muted);
  font-size:13px;
  line-height: 1.5;
}

.tuning-play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--jgg-control-border);
  border-radius: 25px;
  background: var(--green-soft);
  color: var(--green-dark);
  font-size:15.6px;
  font-weight: 850;
}

.tuning-play:hover {
  background: var(--jgg-surface-hover);
  border-color: var(--jgg-control-border);
}

.tuning-play[aria-pressed="true"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--jgg-on-accent);
}

#tuning-status {
  min-height: 1.8em;
  font-size:15.6px;
  line-height: 1.8;
  color: var(--jgg-text-muted);
  margin: 19px 0 8px;
}

.tuning-page .course-note {
  font-size:14.3px;
  margin: 10px 0 0;
  max-width: 680px;
}

@media (max-width: 800px) {
  .tuning-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 580px) {
  .tuning-page .page-heading { padding-top: 25px; }
  .tuning-toolbar { gap: 10px; }
  #tuning-preset { font-size:14.3px; }
  #tuning-reset { font-size:13px; padding: 8px 12px; }
  .tuning-grid { gap: 12px; }
  .tuning-string { padding: 16px 13px; }
  .tuning-string-heading { font-size:13px; gap: 6px; }
  .tuning-pitch { font-size:48.1px; }
  .tuning-frequency { font-size:13px; }
  .tuning-adjust { flex-wrap: wrap; gap: 7px; padding-bottom: 12px; }
  .tuning-adjust button { flex-basis: 44px; }
  .tuning-offset { order: 1; flex-basis: 100%; min-height: 15px; }
  .tuning-play { font-size:14.3px; }
  #tuning-status, .tuning-page .course-note { font-size:13px; }
}

@media (max-width: 360px) {
  .site-header .header-actions { flex-basis: 100%; justify-content: flex-start; }
  .site-header .header-actions .account-button { margin-left: auto; }
}

/* Typography scaled for readability: 130 percent; small labels have a 12px floor. */