.hexo-playground {
  --playground-bg: linear-gradient(180deg, #0f172a 0%, #111827 100%);
  --playground-panel: rgba(15, 23, 42, 0.92);
  --playground-border: rgba(148, 163, 184, 0.22);
  --playground-text: #e5eefc;
  --playground-muted: #9fb0cb;
  --playground-accent: #7dd3fc;
  --playground-success: #86efac;
  --playground-error: #fda4af;
  --playground-output-bg: #ffffff;
  --playground-output-border: #d7deea;
  --playground-output-text: #111827;
  --playground-output-muted: #475569;
  --playground-shadow: 0 28px 60px rgba(15, 23, 42, 0.24);
  margin: 2rem 0;
  border: 1px solid var(--playground-border);
  border-radius: 22px;
  overflow: hidden;
  background: var(--playground-bg);
  box-shadow: var(--playground-shadow);
}

.hexo-playground[data-busy="true"] {
  opacity: 0.96;
}

.hexo-playground__chrome {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0)),
    rgba(15, 23, 42, 0.78);
}

.hexo-playground__lights {
  display: inline-flex;
  gap: 0.4rem;
  flex-shrink: 0;
}

.hexo-playground__lights span {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 999px;
  display: inline-block;
}

.hexo-playground__lights span:nth-child(1) {
  background: #f87171;
}

.hexo-playground__lights span:nth-child(2) {
  background: #facc15;
}

.hexo-playground__lights span:nth-child(3) {
  background: #4ade80;
}

.hexo-playground__meta {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
  flex-wrap: wrap;
}

.hexo-playground__title {
  color: var(--playground-text);
  letter-spacing: 0.01em;
}

.hexo-playground__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  font-size: 0.74rem;
  line-height: 1.5;
  color: var(--playground-muted);
  background: rgba(125, 211, 252, 0.08);
  border: 1px solid rgba(125, 211, 252, 0.14);
}

.hexo-playground__actions {
  margin-left: auto;
  display: inline-flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.hexo-playground__button {
  appearance: none;
  border: 1px solid rgba(125, 211, 252, 0.18);
  color: var(--playground-text);
  background: rgba(125, 211, 252, 0.1);
  border-radius: 999px;
  padding: 0.42rem 0.9rem;
  font-size: 0.85rem;
  line-height: 1.2;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.hexo-playground__button:hover {
  transform: translateY(-1px);
  background: rgba(125, 211, 252, 0.16);
  border-color: rgba(125, 211, 252, 0.3);
}

.hexo-playground__button:disabled {
  opacity: 0.6;
  cursor: progress;
  transform: none;
}

.hexo-playground__editor {
  min-height: 280px;
  background: rgba(2, 6, 23, 0.4);
}

.hexo-playground .CodeMirror {
  height: auto;
  min-height: 280px;
  font-size: 0.92rem;
  line-height: 1.65;
  padding: 0.65rem 0;
}

.hexo-playground .CodeMirror-gutters {
  border-right: 1px solid rgba(148, 163, 184, 0.12);
  background: transparent;
}

.hexo-playground__panels {
  display: grid;
  gap: 0.8rem;
  padding: 1rem;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.86), rgba(15, 23, 42, 0.94));
}

.hexo-playground__status {
  color: var(--playground-output-muted);
  font-size: 0.87rem;
}

.hexo-playground__output,
.hexo-playground__error {
  margin: 0;
  padding: 0.9rem 1rem;
  border-radius: 16px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.88rem;
  line-height: 1.55;
  border: 1px solid rgba(148, 163, 184, 0.12);
  display: none;
}

.hexo-playground__output[data-visible="true"],
.hexo-playground__error[data-visible="true"] {
  display: block;
}

.hexo-playground__output {
  color: var(--playground-output-text);
  background: var(--playground-output-bg);
  border-color: var(--playground-output-border);
  font-family: SFMono-Regular, Consolas, Monaco, monospace;
  font-size: 0.9rem;
  text-shadow: none;
}

.hexo-playground__error {
  color: #7f1d1d;
  background: #fff1f2;
  border-color: #fecdd3;
  font-family: SFMono-Regular, Consolas, Monaco, monospace;
  font-size: 0.9rem;
  text-shadow: none;
}

@media (max-width: 768px) {
  .hexo-playground__chrome {
    align-items: flex-start;
    flex-direction: column;
  }

  .hexo-playground__actions {
    margin-left: 0;
  }

  .hexo-playground__button {
    width: calc(33.333% - 0.4rem);
    justify-content: center;
  }
}