/* ══════════════════════════════════════════════════════════════════════
   ARPEGGIO PAGES — supplemental stylesheet
   Used by:
     /arpeggios/index.html
     /arpeggios/<shape>/index.html  (10 shape pages)
   Extends /chord-progressions/chord-pages.css.
   ══════════════════════════════════════════════════════════════════════ */

.ap-wrap { max-width: 980px; }

/* ── Arpeggio fretboard renderer sizing ───────────────────────────── */

.ap-fretboard {
  display: block;
  margin: 0 auto 12px;
  width: 130px;
  height: 162px;
}
.ap-fretboard-compact {
  display: block;
  margin: 0 auto 10px;
  width: 96px;
  height: 124px;
}

/* ── The three-view hero trio on shape pages ───────────────────────── */

.ap-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.ap-trio-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 18px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.ap-trio-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
}
.ap-trio-card .cp-voicing-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 14px;
}
.ap-trio-cap {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-top: 4px;
}

/* Distinct accents per trio card */
.ap-trio-card:nth-child(1) { border-left: 4px solid var(--predominant); }
.ap-trio-card:nth-child(2) { border-left: 4px solid var(--accent); }
.ap-trio-card:nth-child(3) { border-left: 4px solid var(--subdominant); }

@media (max-width: 720px) {
  .ap-trio { grid-template-columns: 1fr; gap: 14px; }
}

/* ── Variation grids (4-note + 3-note) ────────────────────────────── */

.ap-variations {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}
.ap-var-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 9px;
  padding: 14px 12px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.ap-var-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}
.ap-var-card .cp-voicing-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 10px;
}
.ap-var-cap {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 4px;
}

/* ── Drills ──────────────────────────────────────────────────────── */

.ap-drills {
  display: grid;
  gap: 14px;
}
.ap-drill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--tonic);
  border-radius: 10px;
  padding: 18px 22px 16px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.ap-drill-no {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  min-width: 32px;
  text-align: center;
}
.ap-drill-body h3 {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.ap-drill-body p {
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.65;
  margin: 0;
}

/* ── Overview: 10-shape grid ───────────────────────────────────────── */

.ap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.ap-grid-cell {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 14px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  color: var(--text-primary);
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.ap-grid-cell:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.ap-grid-name {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
  font-style: italic;
}
.ap-grid-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-top: 4px;
}
.ap-grid-cta {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-top: 10px;
}

/* Differentiate minor cells visually */
.cp-voicings-subhead + .cp-voicings-sub-p + .ap-grid .ap-grid-cell {
  /* keep default for first instance (major) */
}
.cp-voicings-subhead:nth-of-type(2) ~ .ap-grid .ap-grid-cell {
  border-left: 3px solid var(--color-chord);
}

/* ── Major vs minor compare ───────────────────────────────────────── */

.ap-mm-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.ap-mm-col {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px 24px 20px;
}
.ap-mm-major { border-left: 4px solid var(--accent); }
.ap-mm-minor { border-left: 4px solid var(--color-chord); }
.ap-mm-col h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.ap-mm-major h3 { color: var(--accent); }
.ap-mm-minor h3 { color: var(--color-chord); }
.ap-mm-formula {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  padding: 10px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 12px;
  display: inline-block;
}
.ap-mm-col p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0;
}

@media (max-width: 720px) {
  .ap-mm-compare { grid-template-columns: 1fr; }
}

/* ── Theory block reuses cp-theory-block; arpeggio extras ─────────── */

.cp-theory-block p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 14px;
}
.cp-theory-block p:last-child { margin-bottom: 0; }
.cp-theory-block em {
  color: var(--accent);
  font-style: italic;
}

@media (max-width: 720px) {
  .ap-wrap { padding-left: 18px; padding-right: 18px; }
  .ap-drill { padding: 16px 16px 14px; gap: 12px; }
  .ap-drill-no { font-size: 1.4rem; min-width: 24px; }
}