/* ========== Triton API 悬浮文档 ========== */

.api-ref {
  position: relative;
  cursor: help;
  border-bottom: 1px dashed var(--accent);
}
.api-ref:hover {
  background: var(--accent-soft);
  border-radius: 3px;
}

.api-tip {
  position: fixed;
  z-index: 100;
  max-width: 420px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
  padding: 0;
  font-size: 0.85rem;
  line-height: 1.6;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.api-tip.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.api-tip-head {
  padding: 0.5rem 0.8rem;
  background: var(--code-bg);
  color: var(--code-ink);
  font-family: var(--mono);
  font-size: 0.78rem;
  border-radius: 8px 8px 0 0;
  white-space: nowrap;
  overflow-x: auto;
}
.api-tip-body {
  padding: 0.55rem 0.8rem;
  color: var(--ink-2);
}

/* 练习题折叠答案 */
.exercise-answer {
  margin: 0.4rem 0 1rem;
}
.exercise-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--accent);
  border-radius: 6px;
  padding: 0.35rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 600;
}
.exercise-toggle:hover { border-color: var(--accent); background: var(--accent-soft); }
.exercise-toggle .chevron {
  display: inline-block;
  transition: transform 0.2s ease;
  font-size: 0.7rem;
}
.exercise-toggle.open .chevron { transform: rotate(90deg); }
.exercise-body {
  display: none;
  margin-top: 0.5rem;
  padding: 0.7rem 0.9rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 6px 6px 0;
  font-size: 0.92rem;
  color: var(--ink-2);
}
.exercise-body.show { display: block; }
.exercise-body p { margin: 0.3rem 0; }
.exercise-body .codeblock { margin: 0.5rem 0; }