:root {
  --hl-bg: #f7f7fb;
  --hl-fg: #1f2937;
  --hl-border: #d1d5db;
  --hl-gutter-bg: #eef2f7;
  --hl-gutter-fg: #6b7280;

  --tok-keyword: #8b5cf6;
  --tok-string: #059669;
  --tok-comment: #6b7280;
  --tok-number: #0ea5e9;
  --tok-function: #d97706;
  --tok-operator: #ef4444;
  --tok-punctuation: #64748b;
}

body.theme-dark {
  --hl-bg: #0f172a;
  --hl-fg: #e5e7eb;
  --hl-border: #334155;
  --hl-gutter-bg: #111827;
  --hl-gutter-fg: #94a3b8;

  --tok-keyword: #a78bfa;
  --tok-string: #34d399;
  --tok-comment: #94a3b8;
  --tok-number: #38bdf8;
  --tok-function: #fbbf24;
  --tok-operator: #f87171;
  --tok-punctuation: #cbd5e1;
}

pre {
  margin: 1rem 0;
  padding: 0;
  background: var(--hl-bg);
  color: var(--hl-fg);
  border: 1px solid var(--hl-border);
  border-radius: 10px;
  overflow: auto;
}

pre > code {
  display: block;
  padding: 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 18px;
  line-height: 1.5;
  white-space: pre;
}

.hl-container {
  position: relative;
}

.hl-container.has-lines {
  display: grid;
  grid-template-columns: auto 1fr;
}

.hl-container.has-lines pre {
  margin: 0;
  border-left: none;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.hl-line-numbers {
  white-space: pre;
  user-select: none;
  text-align: right;
  padding: 1rem 0.6rem;
  margin: 0;
  color: var(--hl-gutter-fg);
  background: var(--hl-gutter-bg);
  border: 1px solid var(--hl-border);
  border-right: none;
  border-top-left-radius: 10px;
  border-bottom-left-radius: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  line-height: 1.5;
}

.hl-copy-btn {
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  z-index: 3;
  border: 1px solid var(--hl-border);
  background: color-mix(in srgb, var(--hl-bg) 85%, #ffffff 15%);
  color: var(--hl-fg);
  border-radius: 6px;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  cursor: pointer;
}

.hl-copy-btn:hover {
  filter: brightness(1.05);
}

.token.keyword { color: var(--tok-keyword); font-weight: 600; }
.token.string { color: var(--tok-string); }
.token.comment { color: var(--tok-comment); font-style: italic; }
.token.number { color: var(--tok-number); }
.token.function { color: var(--tok-function); }
.token.operator { color: var(--tok-operator); }
.token.punctuation { color: var(--tok-punctuation); }