:root {
  --kv-bg:     #0b1120;
  --kv-card:   #111a30;
  --kv-card-2: #182342;
  --kv-text:   #f5f7fc;
  --kv-muted:  #93a0bd;
  --kv-accent: #f5a623;
  --kv-accent-h: #ffb84d;
  --kv-border: #223052;
  --kv-pass:   #22c55e;
  --kv-fail:   #ef4444;
  --kv-warn:   #f97316;
}
html:not(.dark) {
  --kv-bg:     #faf8f4;
  --kv-card:   #ffffff;
  --kv-card-2: #f1ede4;
  --kv-text:   #16202b;
  --kv-muted:  #4d5c6b;
  --kv-accent: #1a3a5f;
  --kv-border: #e7e2d8;
  --kv-warn:   #b45309;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--kv-bg);
  color: var(--kv-text);
  font-family: 'Carlito', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 15.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-variant-numeric: tabular-nums;
}

.app-header { padding: 20px 60px 12px; text-align: center; border-bottom: 1px solid var(--kv-border); position: relative; }
.app-header h1 { font-size: 1.5rem; font-weight: 700; margin: 0; }
.app-header p { color: var(--kv-muted); font-size: 0.9rem; margin: 6px 0 0; }

main { max-width: 900px; margin: 0 auto; padding: 24px 20px 60px; }

.glossary-intro { color: var(--kv-muted); font-size: 0.95rem; margin-bottom: 28px; }
.glossary-intro p { margin: 0; }
.glossary-demo-term {
  border-bottom: 1px dotted var(--kv-muted);
  padding: 1px 2px;
}

.glossary-jumpbar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  position: sticky;
  top: 0;
  background: var(--kv-bg);
  padding: 10px 0;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--kv-border);
  z-index: 5;
}
.glossary-jumpbar a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  color: var(--kv-muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
}
.glossary-jumpbar a:hover,
.glossary-jumpbar a:focus-visible {
  background: var(--kv-card-2);
  color: var(--kv-accent);
}

.glossary-letter-group { margin-bottom: 8px; }
.glossary-letter-heading {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--kv-accent);
  border-bottom: 1px solid var(--kv-border);
  padding-bottom: 6px;
  margin: 32px 0 12px;
  scroll-margin-top: 12px;
}
.glossary-letter-group:first-of-type .glossary-letter-heading { margin-top: 0; }

.glossary-entry {
  padding: 14px 0;
  border-bottom: 1px solid var(--kv-border);
  scroll-margin-top: 56px;
}
.glossary-entry:target {
  background: color-mix(in srgb, var(--kv-accent) 10%, transparent);
  border-radius: 8px;
  padding: 14px 12px;
  margin: 0 -12px;
}
.glossary-entry h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 6px;
}
.glossary-entry h3 a {
  color: var(--kv-muted);
  text-decoration: none;
  font-weight: 400;
  font-size: 0.8rem;
  margin-left: 8px;
}
.glossary-entry h3 a:hover { color: var(--kv-accent); }
.glossary-entry p {
  margin: 0 0 8px;
  color: var(--kv-text);
  font-size: 0.92rem;
}
.glossary-entry-meta {
  font-size: 0.8rem;
  color: var(--kv-muted);
}
.glossary-entry-meta a {
  color: var(--kv-accent);
  text-decoration: none;
}
.glossary-entry-meta a:hover { text-decoration: underline; }
.glossary-entry-meta + .glossary-entry-meta { margin-top: 4px; }

footer {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px 40px;
  color: var(--kv-muted);
  font-size: 0.82rem;
}
footer a { color: var(--kv-accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

@media (max-width: 800px) {
  .app-header { display: flex; align-items: flex-start; gap: 8px; padding: 12px 16px; }
  .home-logo { position: static; flex: 0 0 auto; order: 1; padding-top: 6px; }
  .app-header-center { flex: 1; min-width: 0; order: 2; text-align: center; }
  .theme-toggle { position: static; flex: 0 0 auto; order: 3; width: 44px; height: 44px; }
  .app-header h1 { font-size: 1.1rem; padding: 0; }
  .glossary-jumpbar a { width: 44px; height: 44px; }
}