/* ---------- Language toggle (standalone) ---------- */
.lang-toggle {
  display: inline-flex;
  gap: 2px;
  margin-top: var(--space-1);
  padding: 2px;
  background: #ededed;
  border-radius: var(--radius-full);
}

/* ---------- Language tabs ---------- */
.lang-tabs {
  max-width: 640px;
  margin: var(--space-2) 0 0;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--color-surface);
}

.lang-tabs-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0 0.5rem 0 1.1rem;
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
}

.lang-tabs-header .code-copy-btn {
  position: static;
  margin-left: auto;
}

.lang-tab {
  appearance: none;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0.4rem 1rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  transition: color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}

.lang-tab.is-active {
  background: #ffffff;
  color: var(--color-text);
  box-shadow: 0 1px 4px -1px rgba(0, 0, 0, 0.2);
}

.lang-tabs-header .lang-tab {
  padding: 0.7rem 0;
  font-weight: 500;
  border-radius: 0;
  border-bottom: 2px solid transparent;
}

.lang-tabs-header .lang-tab.is-active {
  background: transparent;
  box-shadow: none;
  border-bottom-color: var(--color-text);
}

.docs-content .lang-c,
.docs-content .lang-cpp,
.docs-content .lang-js {
  display: none;
}

.lang-group[data-lang="cpp"] > .lang-cpp,
.lang-group[data-lang="cpp"] .lang-tabs .lang-cpp {
  display: block;
}

.lang-group[data-lang="js"] > .lang-js,
.lang-group[data-lang="js"] .lang-tabs .lang-js {
  display: block;
}

/* ---------- Global language switch (Docs section) ----------
   Unlike .lang-group above (one toggle per section, tutorial.html only),
   Docs pages set data-lang once on .docs-content and every .lang-c/.lang-cpp/
   .lang-js block on the page reacts to it — see docs.js. */
.docs-content[data-lang="c"] .lang-c,
.docs-content[data-lang="cpp"] .lang-cpp,
.docs-content[data-lang="js"] .lang-js {
  display: block;
}

.lang-tabs .lang-cpp,
.lang-tabs .lang-js {
  padding: 1.1rem 1.25rem;
}

.lang-tabs .lang-cpp p,
.lang-tabs .lang-js p {
  max-width: none;
}

/* ---------- Code block ---------- */
.lang-tabs .code-block {
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
}

.lang-tabs .lang-cpp > .code-block:first-child,
.lang-tabs .lang-js > .code-block:first-child {
  margin-top: 0;
}

/* ---------- Example window ---------- */
.example-window {
  max-width: 480px;
  margin: var(--space-2) auto 0;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
}

.example-window-header {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 10px;
  background: #fafafa;
  border-bottom: 1px solid var(--color-border);
}

.example-window-dots {
  display: flex;
  gap: 5px;
  flex-shrink: 0;
}

.example-window-dots i {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.example-window-dots i:nth-child(1) { background: #ff5f57; }
.example-window-dots i:nth-child(2) { background: #febc2e; }
.example-window-dots i:nth-child(3) { background: #28c840; }

.example-window-address {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #8f8f8f;
}

.example-window-body {
  aspect-ratio: 4 / 3;
  background: #ffffff;
}

.docs-content figure.example-window .example-window-body img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border: none;
  border-radius: 0;
}