/* ── Code blocks ── */
.code-block-wrapper {
  position: relative;
  margin: var(--space-lg) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-code-border);
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #D9E8F8;
  padding: var(--space-xs) var(--space-md);
  border-bottom: 1px solid var(--color-code-border);
  gap: var(--space-sm);
}

.code-block-lang {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-ocean);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--color-surface);
  border: 1px solid var(--color-code-border);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-muted);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  font-family: var(--font-sans);
  line-height: 1.5;
}

.copy-btn:hover {
  background: var(--color-ocean);
  color: #fff;
  border-color: var(--color-ocean);
}

.copy-btn.copied {
  background: #22c55e;
  color: #fff;
  border-color: #22c55e;
}

/* Prism overrides — light code-bg theme */
pre[class*="language-"],
code[class*="language-"] {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  background: var(--color-code-bg);
  color: #1e3a5f;
  text-shadow: none;
  border-radius: 0;
}

pre[class*="language-"] {
  margin: 0;
  padding: var(--space-lg);
  overflow-x: auto;
  line-height: 1.6;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

/* Token colours for light theme */
.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #7a90a8; font-style: italic; }
.token.punctuation { color: #4a6785; }
.token.property, .token.tag, .token.boolean, .token.number, .token.constant, .token.symbol { color: #1565c0; }
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin { color: #0d6b3b; }
.token.operator, .token.entity, .token.url, .language-css .token.string { color: #c7440c; }
.token.atrule, .token.attr-value, .token.keyword { color: #6B21A8; font-weight: 600; }
.token.function, .token.class-name { color: #0c6fb5; font-weight: 600; }
.token.regex, .token.important, .token.variable { color: #c7440c; }
.token.important, .token.bold { font-weight: bold; }
.token.italic { font-style: italic; }

/* ── Mermaid ── */
.mermaid {
  background: var(--color-code-bg);
  border: 1px solid var(--color-code-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  overflow-x: auto;
  text-align: center;
}

.mermaid svg { max-width: 100%; height: auto; }