/* ============================================================
   JeffAPierson.com - Audio and Video section
   Glossary, theory chapters, downloads. Extends style.css.
   ============================================================ */

/* ---------- shared section furniture ---------- */
.av-lede {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-primary);
  max-width: 68ch;
  margin-bottom: 24px;
}
.av-lede + .av-lede { margin-top: -8px; }

.av-note {
  border-left: 3px solid var(--accent);
  background: var(--bg-secondary);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
  font-family: var(--font-body);
  line-height: 1.65;
}
.av-note strong { font-family: var(--font-ui); }

/* ---------- glossary controls ---------- */
.av-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}
.av-field { display: flex; flex-direction: column; gap: 6px; flex: 1 1 260px; }
.av-field label {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
}
.av-field input[type="search"],
.av-field select {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  min-height: 44px;
}
.av-field input[type="search"]:focus-visible,
.av-field select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: var(--accent);
}
.av-count {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-bottom: 12px;
}

/* ---------- category jump rail ---------- */
.av-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding: 0;
  list-style: none;
}
.av-jump a {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  text-decoration: none;
  min-height: 32px;
  line-height: 20px;
}
.av-jump a:hover,
.av-jump a:focus-visible { border-color: var(--accent); color: var(--accent); }

/* ---------- glossary entries ---------- */
.av-cat { margin: 40px 0 0; scroll-margin-top: calc(var(--header-height) + 24px); }
.av-cat > h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}
.av-terms { list-style: none; padding: 0; margin: 0; }

.av-term {
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
  scroll-margin-top: calc(var(--header-height) + 24px);
}
.av-term:last-child { border-bottom: 0; }
.av-term h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin-bottom: 4px;
}
.av-term h3 a { color: var(--text-primary); text-decoration: none; }
.av-term h3 a:hover,
.av-term h3 a:focus-visible { color: var(--accent); }
.av-aka {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.av-short {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.av-long {
  font-family: var(--font-body);
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 72ch;
}
.av-app {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--border-light);
}
.av-app b { color: var(--text-primary); font-weight: 600; }
.av-see {
  margin-top: 12px;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.av-see a { color: var(--accent); text-decoration: none; }
.av-see a:hover,
.av-see a:focus-visible { text-decoration: underline; }

.av-empty {
  display: none;
  padding: 40px 0;
  font-family: var(--font-ui);
  color: var(--text-secondary);
}
.av-empty.is-shown { display: block; }
[hidden] { display: none !important; }

/* ---------- chapter cards ---------- */
.av-chapters { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.av-chapter {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.av-chapter h2 { font-family: var(--font-heading); font-size: 1.15rem; margin-bottom: 8px; }
.av-chapter h2 a { color: var(--text-primary); text-decoration: none; }
.av-chapter h2 a:hover, .av-chapter h2 a:focus-visible { color: var(--accent); }
.av-chapter p { font-family: var(--font-body); line-height: 1.65; color: var(--text-secondary); font-size: 0.95rem; }
.av-chapter .av-num {
  font-family: var(--font-ui); font-size: 0.7rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-muted); display: block; margin-bottom: 6px;
}

/* ---------- chapter body ---------- */
.av-body { max-width: 72ch; font-family: var(--font-body); line-height: 1.75; }
.av-body h2 {
  font-family: var(--font-heading); font-size: 1.4rem;
  margin: 40px 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.av-body h3 { font-family: var(--font-heading); font-size: 1.15rem; margin: 28px 0 8px; }
.av-body p { margin-bottom: 16px; color: var(--text-primary); }
.av-body ul, .av-body ol { margin: 0 0 16px 24px; }
.av-body li { margin-bottom: 8px; color: var(--text-primary); }
.av-body a { color: var(--accent); }
.av-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-family: var(--font-ui); font-size: 0.9rem; }
.av-body thead { background: var(--bg-card); }
.av-body th, .av-body td { padding: 12px 16px; border: 1px solid var(--border); text-align: left; }
.av-body th { font-weight: 600; color: var(--text-primary); }
.av-body td { color: var(--text-secondary); }
.av-body code {
  font-family: 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: 0.85em; background: var(--bg-secondary);
  padding: 2px 6px; border-radius: 4px; color: var(--text-primary);
}

.av-prevnext { display: flex; justify-content: space-between; gap: 16px; margin-top: 48px; flex-wrap: wrap; }
.av-prevnext a { font-family: var(--font-ui); font-size: 0.9rem; color: var(--accent); text-decoration: none; }
.av-prevnext a:hover, .av-prevnext a:focus-visible { text-decoration: underline; }

/* ---------- downloads ---------- */
.av-download { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 24px; }
.av-download h2 { font-family: var(--font-heading); font-size: 1.4rem; margin-bottom: 8px; }
.av-meta { font-family: var(--font-ui); font-size: 0.8rem; color: var(--text-muted); margin-bottom: 16px; }
.av-hash { font-family: 'SF Mono', 'Fira Code', Consolas, monospace; font-size: 0.75rem; word-break: break-all; color: var(--text-muted); }

@media (max-width: 768px) {
  .av-controls { padding: 16px; }
  .av-count { padding-bottom: 0; }
}

@media print {
  .av-controls, .av-jump, .av-prevnext { display: none; }
  .av-term { break-inside: avoid; }
}

/* hub: a standalone section heading between card grids */
.av-section-head {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin: 48px 0 24px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}