/* =====================================================================
   CODE BLOCKS
   Markup from code_blocks.py (build time); token colors in highlight.css; the copy
   button from static/js/main.js. The frame borrows the figure plates' vocabulary:
   hairline rules, a 4px accent tick, a mono kicker for the language, 4px radius.
   ===================================================================== */
.code-block {
  --code-bg: var(--bg-1);
  --code-head: var(--bg-2);
  --code-edge: rgba(194, 59, 0, 0.12);
  margin: var(--space-6) 0;
  border: var(--rule);
  border-radius: var(--radius-sm);
  background: var(--code-bg);
  overflow: hidden;
}
[data-theme="dark"] .code-block {
  --code-edge: rgba(255, 95, 31, 0.2);
}

/* Head strip: fixed height, so the button the script adds never moves anything. */
.code-block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  height: 2.25rem;
  padding: 0 var(--space-1-5) 0 var(--space-4);
  background: var(--code-head);
  border-bottom: var(--rule);
}
.code-block-lang {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--mono);
  font-size: var(--font-size-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps-xl);
  line-height: var(--leading-none);
  text-transform: uppercase;
  color: var(--text-3);
}
.code-block-lang::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--accent);
}

.code-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1-5);
  min-width: 5.75rem;
  height: 1.625rem;
  padding: 0 var(--space-2);
  font-family: var(--mono);
  font-size: var(--font-size-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps);
  line-height: var(--leading-none);
  text-transform: uppercase;
  color: var(--text-3);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--t-md), border-color var(--t-md);
}
.code-copy:hover { color: var(--text-1); border-color: var(--border-2); }
.code-copy:focus-visible { outline: var(--focus-ring); outline-offset: 1px; }
.code-copy.is-copied { color: var(--status-success); }
.code-copy svg { flex: none; width: 12px; height: 12px; }
.code-copy-status {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* Body: the frame sits on the text column, so Pygments' wrapper adds nothing. */
.code-block .highlight { margin: 0; padding: 0; border-radius: 0; background: var(--code-bg); }
.code-block pre {
  margin: 0;
  padding: var(--space-4) var(--space-5);
  border: 0;
  background: var(--code-bg);
  font-family: var(--mono);
  font-size: var(--font-size-lg);
  line-height: var(--leading-loose);
  tab-size: 4;
  /* JetBrains Mono draws == and -> as single glyphs; code is read to be retyped. */
  font-variant-ligatures: none;
}
.code-block pre code {
  font-size: inherit;
  color: var(--text-1);
  background: none;
  padding: 0;
}
/* Inset, because the frame clips anything outside it. */
.code-block pre:focus-visible { outline: var(--focus-ring); outline-offset: -2px; }

/* Code scrolls sideways. The two local layers cover the scroll layers until the content
   moves, so an accent-tinted edge shows only on a side with more code past it. */
.code-block--scroll pre {
  overflow-x: auto;
  background:
    linear-gradient(to right, var(--code-bg) 40%, transparent) left center / 2.5rem 100% no-repeat local,
    linear-gradient(to left, var(--code-bg) 40%, transparent) right center / 2.5rem 100% no-repeat local,
    linear-gradient(to right, var(--code-edge), transparent) left center / 1.25rem 100% no-repeat scroll,
    linear-gradient(to left, var(--code-edge), transparent) right center / 1.25rem 100% no-repeat scroll,
    var(--code-bg);
  scrollbar-width: thin;
  scrollbar-color: var(--border-2) transparent;
}
.code-block--scroll pre code { white-space: pre; }

/* Prompts, templates and tool output wrap instead. */
.code-block--wrap pre,
.code-block--wrap pre code { white-space: pre-wrap; overflow-wrap: anywhere; }

@media (max-width: 480px) {
  .code-block pre { padding: var(--space-3) var(--space-4); font-size: var(--font-size-md); }
  .code-block-head { padding-left: var(--space-3); }
}

/* Paper can't scroll: every line wraps, and the button and fade stay on screen. */
@media print {
  .code-block { break-inside: avoid; }
  .code-block-head { background: none; }
  .code-copy,
  .code-copy-status { display: none; }
  .code-block pre,
  .code-block--scroll pre {
    overflow: visible;
    background: none;
  }
  .code-block pre,
  .code-block pre code { white-space: pre-wrap; overflow-wrap: anywhere; }
}