/* Acknowledgements in sidebar */
.acknowledgements {
  margin-top: 1.5em;
  font-size: 0.82em;
  color: #888;
  line-height: 1.5;
}

.acknowledgements p {
  margin: 0;
}

.acknowledgements strong {
  color: #666;
}

/* Diagrams — centred, constrained */
section img[src$=".svg"] {
  display: block;
  max-width: 420px;
  margin: 1.5em auto;
}

/* Subtitle styling */
.subtitle {
  color: #666;
  font-size: 0.95em;
  margin-top: -0.5em;
  margin-bottom: 1.5em;
  line-height: 1.5;
}

/* Research question blockquote */
blockquote {
  border-left: 3px solid #1a6fbf;
  background: #f4f8fc;
  margin: 1.5em 0;
  padding: 12px 18px;
  color: #333;
  font-style: italic;
  border-radius: 0 6px 6px 0;
}

/* Section dividers */
.section-divider {
  border: none;
  border-top: 2px solid #e8e8e8;
  margin: 2.5em 0;
}

/* Benchmark table */
table {
  font-size: 0.88em;
  border-radius: 6px;
  overflow: hidden;
}

th {
  background: #f0f4f8;
  font-size: 0.82em;
  border-bottom: 2px solid #d0d7de;
}

td, th {
  padding: 7px 10px;
  text-align: center;
}

tr:nth-child(even) td {
  background: #f8fafb;
}

tr:hover td {
  background: #edf2f7;
}

/* Speed badge */
.speed-badge {
  display: inline-block;
  background: #e7f3ff;
  color: #1a6fbf;
  font-size: 0.8em;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
  margin-left: 6px;
  vertical-align: middle;
}

/* Audio comparison cards */
.audio-section {
  margin: 1.8em 0 2.2em 0;
}

.audio-section h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 0.3em;
}

.audio-section h3 img {
  width: 30px;
  height: 30px;
  opacity: 0.7;
}

.audio-grid {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.audio-card {
  flex: 1;
  min-width: 220px;
  background: #f8f9fa;
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  padding: 14px 16px;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.audio-card:hover {
  border-color: #c8d0d8;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.audio-card.dry {
  flex: 0 0 100%;
  background: #fefefe;
  border: 1px solid #e0e0e0;
  border-left: 3px solid #ccc;
}

.audio-card .card-label {
  font-size: 0.8em;
  font-weight: 600;
  color: #555;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.audio-card.dry .card-label {
  color: #999;
}

.audio-card audio {
  width: 100%;
  height: 36px;
}