:root {
  --fg: #1a1a1a;
  --muted: #5a5a5a;
  --bg: #ffffff;
  --accent: #2a4d8f;
  --border: #e2e2e2;
  --row-alt: #fafafa;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  line-height: 1.55;
}

header {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 24px 24px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 1.55rem;
  margin: 0 0 12px;
  line-height: 1.3;
}

.authors {
  color: var(--muted);
  margin: 0 0 16px;
}

.links a {
  display: inline-block;
  margin: 0 6px;
  padding: 6px 14px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.95rem;
}

.links a:hover { background: var(--accent); color: #fff; }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
}

section { margin-bottom: 48px; }

section h2 {
  font-size: 1.25rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.caption { color: var(--muted); font-size: 0.9rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th, td {
  border-bottom: 1px solid var(--border);
  padding: 10px 8px;
  text-align: left;
  vertical-align: middle;
}

th { background: var(--row-alt); font-weight: 600; }
tr:nth-child(even) td { background: var(--row-alt); }

td audio { width: 180px; height: 32px; }

td.text { min-width: 220px; }
td.idx { color: var(--muted); width: 32px; }
td.missing { color: #bbb; text-align: center; }

tr.headline td { background: #f1f6ff !important; font-weight: 500; }

pre {
  background: #f5f5f5;
  padding: 14px;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 0.85rem;
}

footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 24px;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 720px) {
  td audio { width: 140px; }
  table { font-size: 0.85rem; }
}