/* =========================================================
   Code Blocks & Code Groups
   Depends on: base/code-tokens.css
   ========================================================= */


/* =========================================================
   Accessibility utilities
   ========================================================= */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


/* =========================================================
   Shared primitives
   ========================================================= */

.codeblock,
.codegroup{
  margin: 1.25rem 0;
  border-radius: var(--code-radius);
  border: 1px solid var(--code-border);
  background: var(--code-bg);
  overflow: hidden;
}


/* =========================================================
   Buttons (shared)
   ========================================================= */

/* Copy icon button - minimal, icon-only design */
.codeblock__copy-btn{
  border: none;
  background: transparent;
  border-radius: 6px;
  padding: 6px;
  cursor: pointer;
  
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  
  color: var(--code-muted);
  transition: color var(--code-transition-duration) var(--code-transition-timing),
              background var(--code-transition-duration) var(--code-transition-timing);
}

.codeblock__copy-btn:hover{
  background: var(--codebtn-hover-bg);
  color: var(--code-text);
}

.codeblock__copy-btn:focus-visible{
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* Copy icon SVG styling */
.codeblock__copy-btn svg{
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Expand button - now appears at bottom with label and arrow */
.codeblock__expand-btn{
  width: 100%;
  border: none;
  border-top: 1px solid var(--code-border);
  background: var(--codebar-bg);
  padding: 10px 12px;
  cursor: pointer;
  
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: lowercase;
  color: var(--code-text);
  transition: background var(--code-transition-duration) var(--code-transition-timing);
}

.codeblock__expand-btn:hover{
  background: var(--codebtn-hover-bg);
}

.codeblock__expand-btn:focus-visible{
  outline: 2px solid currentColor;
  outline-offset: -2px;
}

/* Arrow icon for expand button */
.codeblock__expand-btn svg{
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform var(--code-transition-duration) var(--code-transition-timing);
}

/* Rotate arrow when expanded */
.codeblock.is-expanded .codeblock__expand-btn svg,
.codegroup.is-expanded .codeblock__expand-btn svg{
  transform: rotate(180deg);
}


/* =========================================================
   Header bars
   ========================================================= */

.codeblock__bar,
.codegroup__bar{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;

  padding: 10px 12px;
  background: var(--codebar-bg);
  border-bottom: 1px solid var(--code-border);
}

.codeblock__lang{
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--code-muted);
  /* user-select: none; */
}

.codeblock__actions,
.codegroup__actions{
  display: flex;
  gap: 8px;
}


/* =========================================================
   Standalone code blocks (.codeblock)
   ========================================================= */

.codeblock__body{
  position: relative;
}

.codeblock pre{
  margin: 0;
  padding: var(--code-pad);

  font-family: var(--code-font);
  font-size: .9rem;
  line-height: 1.5;
  color: var(--code-text);

  overflow: auto;
  tab-size: 2;
}

/* Collapse behavior */
.codeblock.is-collapsible.is-collapsed pre{
  max-height: var(--code-collapsed-max);
  overflow: hidden;
}

.codeblock__fade{
  display: none;
}

.codeblock.is-collapsible.is-collapsed .codeblock__fade{
  display: block;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;

  height: 64px;
  pointer-events: none;

  background: linear-gradient(
    to bottom,
    var(--code-fade-from),
    var(--code-fade-to)
  );
}


/* =========================================================
   Tabbed code groups (.codegroup)
   ========================================================= */

.codegroup__tabs{
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.codegroup__tab{
  appearance: none;
  border: 1px solid transparent;
  background: transparent;

  border-radius: 999px;
  padding: 7px 10px;
  cursor: pointer;

  font-size: 12px;
  letter-spacing: .08em;
  color: var(--code-text);
  opacity: var(--codetab-inactive-opacity);
  transition: background var(--code-transition-duration) var(--code-transition-timing),
              opacity var(--code-transition-duration) var(--code-transition-timing);
}

.codegroup__tab:hover{
  background: var(--codebtn-hover-bg);
}

.codegroup__tab[aria-selected="true"]{
  opacity: 1;
  border-color: var(--codetab-active-border);
  background: var(--codetab-active-bg);
}

.codegroup__tab:focus-visible{
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* Panels are transparent; container owns background */
.codegroup__panel{
  background: transparent;
}

.codegroup__panel[hidden]{
  display: none !important;
}

.codegroup pre{
  margin: 0;
  padding: var(--code-pad);

  font-family: var(--code-font);
  font-size: .9rem;
  line-height: 1.5;
  color: var(--code-text);

  overflow: auto;
  tab-size: 2;
}

/* Optional expanded hook */
.codegroup.is-expanded .codegroup__panel{
  max-height: none;
}

.codegroup.is-collapsible.is-collapsed .codegroup__panel:not([hidden]) pre{
  max-height: var(--code-collapsed-max);
  overflow: hidden;
}


/* =========================================================
   Rouge neutralization (critical)
   ========================================================= */

/* Ensure Rouge never injects a background that breaks parity */
.codeblock .highlight,
.codeblock pre,
.codeblock pre.highlight,
.codegroup .highlight,
.codegroup pre,
.codegroup pre.highlight{
  background: transparent;
}

/* Inherit font cleanly */
.codeblock pre code,
.codegroup pre code{
  font-family: inherit;
}