.ex-codeblock {
  margin: 1rem 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  overflow: hidden;
  background: #2b2b2b;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), 0 16px 34px rgba(2, 6, 23, 0.24);
}

.ex-codeblock__header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 12px 10px;
  background: #2b2b2b;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.ex-codeblock__label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

.ex-codeblock__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0.58;
  transition: opacity 180ms ease;
}

.ex-codeblock:hover .ex-codeblock__actions,
.ex-codeblock:focus-within .ex-codeblock__actions,
.ex-codeblock.is-editing .ex-codeblock__actions {
  opacity: 1;
}

.ex-codeblock__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: rgba(255, 255, 255, 0.86);
  padding: 0;
  font: inherit;
  font-size: 0;
  line-height: 1;
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease, color 180ms ease;
}

.ex-codeblock__btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.08);
}

.ex-codeblock__btn svg {
  width: 19px;
  height: 19px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ex-codeblock__btn:focus-visible {
  outline: 2px solid rgba(129, 140, 248, 0.9);
  outline-offset: 2px;
}

.ex-codeblock__btn.is-success {
  background: rgba(22, 163, 74, 0.18);
  border-color: rgba(74, 222, 128, 0.4);
  color: #dcfce7;
}

.ex-codeblock__btn.is-danger {
  background: rgba(185, 28, 28, 0.2);
  border-color: rgba(248, 113, 113, 0.45);
  color: #fee2e2;
}

.ex-codeblock__btn--ghost {
  background: rgba(15, 23, 42, 0.72);
  color: rgba(226, 232, 240, 0.8);
}

.ex-codeblock__body {
  position: relative;
}

.ex-codeblock__viewport {
  overflow-x: auto;
  overflow-y: hidden;
  max-height: none;
  transition: max-height 260ms ease;
  scrollbar-width: thin;
  scrollbar-color: rgba(129, 140, 248, 0.55) rgba(15, 23, 42, 0.2);
}

.ex-codeblock__viewport::-webkit-scrollbar {
  height: 10px;
  width: 10px;
}

.ex-codeblock__viewport::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.5);
  border-radius: 999px;
}

.ex-codeblock__viewport::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.16);
}

.ex-codeblock__pre {
  margin: 0;
  min-width: max-content;
  padding: 16px;
  color: #e5eefc;
  background: transparent;
  font-size: 13px;
  line-height: 1.65;
  white-space: pre;
  tab-size: 2;
}

.ex-codeblock__pre code {
  display: block;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

.ex-codeblock__editor {
  padding: 12px;
  background: rgba(2, 6, 23, 0.72);
  animation: exCodeBlockFade 180ms ease;
}

.ex-codeblock__textarea {
  width: 100%;
  min-height: 140px;
  resize: vertical;
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.94);
  color: #e2e8f0;
  padding: 14px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 13px;
  line-height: 1.6;
}

.ex-codeblock__textarea:focus-visible {
  outline: 2px solid rgba(129, 140, 248, 0.9);
  outline-offset: 2px;
}

.ex-codeblock__editor-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 10px;
}

.ex-codeblock-toolbar {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 2147483644;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(18, 24, 38, 0.88), rgba(10, 14, 24, 0.92));
  box-shadow: 0 20px 50px rgba(2, 6, 23, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  opacity: 0;
  pointer-events: none;
  transform: translate3d(-9999px, -9999px, 0);
  transition: opacity 160ms ease, transform 190ms cubic-bezier(.22, 1, .36, 1);
}

.ex-codeblock-toolbar.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.ex-codeblock-toolbar__btn,
.ex-codeblock-toolbar__menu-item {
  appearance: none;
  border: none;
  background: transparent;
  color: rgba(241, 245, 249, 0.92);
  border-radius: 12px;
  padding: 9px 12px;
  font: 600 12px/1.1 "DM Sans", system-ui, sans-serif;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease, transform 140ms ease;
}

.ex-codeblock-toolbar__btn:hover,
.ex-codeblock-toolbar__btn:focus-visible,
.ex-codeblock-toolbar__menu-item:hover,
.ex-codeblock-toolbar__menu-item:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  outline: none;
}

.ex-codeblock-toolbar__btn:active,
.ex-codeblock-toolbar__menu-item:active {
  transform: translateY(1px);
}

.ex-codeblock-toolbar__btn strong,
.ex-codeblock-toolbar__btn em {
  font-size: 14px;
}

.ex-codeblock-toolbar__btn--primary {
  background: rgba(96, 165, 250, 0.16);
  color: #f8fbff;
}

.ex-codeblock-toolbar__menu {
  position: relative;
}

.ex-codeblock-toolbar__menu-trigger::after {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-left: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-1px) rotate(45deg);
}

.ex-codeblock-toolbar__dropdown {
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  min-width: 168px;
  display: grid;
  gap: 2px;
  padding: 6px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(8, 12, 20, 0.96);
  box-shadow: 0 18px 40px rgba(2, 6, 23, 0.4);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}

.ex-codeblock-toolbar__menu-item {
  text-align: left;
  white-space: nowrap;
}

.ex-codeblock-toolbar__status {
  position: absolute;
  left: 50%;
  top: calc(100% + 10px);
  transform: translateX(-50%) translateY(-4px);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(8, 12, 20, 0.96);
  color: rgba(226, 232, 240, 0.88);
  font: 700 11px/1 "DM Sans", system-ui, sans-serif;
  letter-spacing: 0.02em;
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms ease, transform 160ms ease;
}

.ex-codeblock-toolbar__status.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.ex-codeblock-toolbar__status.is-success::before {
  content: "✓";
  margin-right: 6px;
}

.ex-codeblock__token-comment { color: #64748b; }
.ex-codeblock__token-string { color: #f9a8d4; }
.ex-codeblock__token-keyword { color: #93c5fd; }
.ex-codeblock__token-number { color: #fcd34d; }
.ex-codeblock__token-key { color: #67e8f9; }
.ex-codeblock__token-attr { color: #c4b5fd; }

@keyframes exCodeBlockFade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 640px) {
  .ex-codeblock {
    border-radius: 14px;
  }

  .ex-codeblock__header {
    padding: 10px;
  }

  .ex-codeblock__actions {
    gap: 6px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .ex-codeblock__btn {
    padding: 6px 9px;
    font-size: 11px;
  }

  .ex-codeblock__pre {
    padding: 14px;
    font-size: 12px;
  }

  .ex-codeblock-toolbar {
    max-width: calc(100vw - 20px);
    gap: 4px;
    padding: 5px;
    border-radius: 16px;
  }

  .ex-codeblock-toolbar__btn,
  .ex-codeblock-toolbar__menu-item {
    padding: 8px 10px;
    font-size: 11px;
  }

  .ex-codeblock-toolbar__dropdown {
    left: auto;
    right: 0;
  }
}