.about-code-card {
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #0a1628;
  overflow: hidden;
  box-shadow: 0 16px 40px -20px rgba(0, 0, 0, 0.45);
}

.about-code-card__chrome {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.85rem;
  background: #060e1a;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.about-code-card__dots {
  display: flex;
  gap: 0.35rem;
  flex-shrink: 0;
}

.about-code-card__dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
}

.about-code-card__dot--red { background: #ff5f57; }
.about-code-card__dot--yellow { background: #febc2e; }
.about-code-card__dot--green { background: #28c840; }

.about-code-card__tab {
  flex: 1;
  min-width: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  padding: 0.2rem 0.55rem;
  border-radius: 0.35rem;
  background: rgba(255, 255, 255, 0.06);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity 0.25s ease;
}

.about-code-card__tab.is-switching {
  opacity: 0.35;
}

.about-code-card__lang {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 122, 0, 0.9);
  flex-shrink: 0;
}

.about-code-card__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.45rem 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.12);
}

.about-code-card__label {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
}

.about-code-card__run {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0.45rem;
  padding: 0.35rem 0.7rem;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #e8edf5;
  background: rgba(255, 255, 255, 0.06);
  cursor: default;
  transition: transform 0.12s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  pointer-events: none;
}

.about-code-card__run-icon {
  font-size: 0.55rem;
  opacity: 0.85;
}

.about-code-card__run.is-pressing {
  transform: scale(0.96);
  background: rgba(255, 255, 255, 0.12);
}

.about-code-card__run.is-done {
  background: rgba(18, 183, 106, 0.2);
  border-color: rgba(18, 183, 106, 0.45);
  color: #6ce9a6;
}

.about-code-card__body {
  display: grid;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .about-code-card__body {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.about-code-card__editor-wrap {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0;
  min-height: 10.5rem;
  padding: 0.65rem 0 0.75rem;
  background: #0d1a2d;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: opacity 0.3s ease;
}

.about-code-card__editor-wrap.is-fading {
  opacity: 0.25;
}

@media (min-width: 640px) {
  .about-code-card__editor-wrap {
    border-bottom: none;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
  }
}

.about-code-card__gutter {
  margin: 0;
  padding: 0 0.55rem 0 0.75rem;
  text-align: right;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.7rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.22);
  user-select: none;
  white-space: pre;
}

.about-code-card__code {
  margin: 0;
  padding-right: 0.85rem;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.7rem;
  line-height: 1.6;
  color: #e8edf5;
  white-space: pre;
  tab-size: 4;
}

.about-code-card__caret {
  display: inline-block;
  width: 2px;
  height: 1.05em;
  margin-left: 1px;
  vertical-align: text-bottom;
  background: #ff7a00;
  box-shadow: 0 0 8px rgba(255, 122, 0, 0.6);
  animation: about-code-blink 1s step-end infinite;
}

.about-code-card__caret.is-hidden {
  opacity: 0;
  animation: none;
}

@keyframes about-code-blink {
  50% { opacity: 0; }
}

.about-code-card__preview {
  display: flex;
  flex-direction: column;
  min-height: 10.5rem;
  padding: 0.65rem 0.85rem 0.75rem;
  background: #060e1a;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.about-code-card__preview.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.about-code-card__preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.about-code-card__preview-label {
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.32);
}

.about-code-card__preview-status {
  font-size: 0.58rem;
  font-weight: 700;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: rgba(255, 255, 255, 0.28);
  transition: color 0.2s ease;
}

.about-code-card__preview-status.is-running {
  color: #7eb8ff;
}

.about-code-card__preview-status.is-done {
  color: #6ce9a6;
}

.about-code-card__output {
  margin: 0;
  flex: 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
  line-height: 1.6;
  color: #a6f4c5;
  white-space: pre-wrap;
  word-break: break-word;
}

.about-code-card__dots-nav {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 0.85rem 0.65rem;
  background: #060e1a;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.about-code-card__nav-dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 999px;
  border: none;
  padding: 0;
  background: rgba(255, 255, 255, 0.2);
  cursor: default;
  transition: width 0.25s ease, background 0.25s ease;
}

.about-code-card__nav-dot.is-active {
  width: 1.1rem;
  background: #ff7a00;
}

.about-code-card .tok-comment { color: #6b7d94; font-style: italic; }
.about-code-card .tok-keyword { color: #7eb8ff; }
.about-code-card .tok-string { color: #f9c97a; }
.about-code-card .tok-func { color: #7ee8b8; }
.about-code-card .tok-builtin { color: #c4a8ff; }
.about-code-card .tok-number { color: #ff9b7a; }
.about-code-card .tok-decorator { color: #e0aaff; }

@media (prefers-reduced-motion: reduce) {
  .about-code-card__caret {
    animation: none;
    opacity: 0;
  }
  .about-code-card__preview {
    opacity: 1;
    transform: none;
  }
  .about-code-card__editor-wrap.is-fading {
    opacity: 1;
  }
}