/* SwarmLLM mdBook polish.
 *
 * Layered on top of the default `coal` (dark) theme; light themes
 * (light/rust/navy/ayu) are unchanged where possible — the rules
 * below use color-mix or transparent overlays so they don't fight
 * the per-theme palette. */

:root {
  --swarmllm-accent: #7aa2ff;
  --swarmllm-accent-soft: rgba(122, 162, 255, 0.15);
  --swarmllm-success: #5fc99e;
  --swarmllm-warn: #f5b748;
}

/* Tighter content width on wide monitors — long lines hurt scan. */
.content main {
  max-width: 820px;
  padding: 0 18px;
}

/* h1: lighter weight + accent underline. */
.content h1 {
  font-weight: 600;
  letter-spacing: -0.02em;
  border-bottom: 2px solid var(--swarmllm-accent);
  padding-bottom: 0.35em;
  margin-bottom: 0.8em;
}

/* h2: softer separator. */
.content h2 {
  font-weight: 600;
  letter-spacing: -0.01em;
  border-bottom: 1px solid var(--sidebar-bg, rgba(120, 120, 120, 0.25));
  padding-bottom: 0.25em;
  margin-top: 2em;
}

.content h3 {
  font-weight: 600;
}

/* Inline code: subtle accent tint so it pops without screaming. */
.content code {
  background: var(--swarmllm-accent-soft);
  border-radius: 4px;
  padding: 0.12em 0.4em;
  font-size: 0.92em;
}

/* Code blocks already have their own pre styling; don't re-tint. */
.content pre code {
  background: transparent;
  padding: 0;
}

/* Tables: more compact, zebra-striped on the dark theme. */
.content table {
  border-collapse: collapse;
  margin: 1em 0;
  width: 100%;
}
.content table th,
.content table td {
  padding: 0.55em 0.85em;
  border: 1px solid var(--sidebar-bg, rgba(120, 120, 120, 0.25));
}
.content table thead {
  background: var(--swarmllm-accent-soft);
}

/* Blockquotes as gentle callouts. */
.content blockquote {
  border-left: 3px solid var(--swarmllm-accent);
  background: var(--swarmllm-accent-soft);
  padding: 0.6em 1em;
  border-radius: 0 6px 6px 0;
  margin: 1em 0;
  color: inherit;
}

/* Links: cleaner accent on hover. */
.content a:link,
.content a:visited {
  color: var(--swarmllm-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.12s ease;
}
.content a:hover {
  border-bottom-color: var(--swarmllm-accent);
}

/* Sidebar chapter active state: clearer accent bar. */
.sidebar .chapter li.chapter-item.active > a,
.sidebar .chapter li.chapter-item > a:hover {
  color: var(--swarmllm-accent);
}

/* "Next steps" cards (custom pattern used in introduction.md). */
.next-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin: 1.5em 0;
}
.next-steps a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--sidebar-bg, rgba(120, 120, 120, 0.25));
  border-radius: 8px;
  text-decoration: none;
  border-bottom: 1px solid var(--sidebar-bg, rgba(120, 120, 120, 0.25)) !important;
  transition: border-color 0.12s ease, transform 0.12s ease;
}
.next-steps a:hover {
  border-color: var(--swarmllm-accent) !important;
  transform: translateY(-1px);
}
.next-steps a strong {
  display: block;
  color: var(--swarmllm-accent);
  margin-bottom: 4px;
}
.next-steps a span {
  font-size: 0.92em;
  opacity: 0.8;
}