.lc-editor {
  --lc-bg: #0f172a;
  --lc-panel: #111827;
  --lc-fg: #d1d5db;
  --lc-muted: #94a3b8;
  --lc-border: #263244;
  --lc-focus: #93c5fd;
  --lc-keyword: #93c5fd;
  --lc-string: #86efac;
  --lc-number: #fbbf24;
  --lc-comment: #64748b;
  --lc-identifier: #e5e7eb;
  --lc-operator: #cbd5e1;
  --lc-error: #fca5a5;
  --lc-radius: 0.65rem;
  --lc-font-size: 0.9rem;
  --lc-line-height: 1.45rem;
  --lc-gutter-width: 3rem;
  --lc-pad-x: 0.875rem;
  --lc-pad-y: 0.75rem;
  --lc-font: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  color: var(--lc-fg);
  font-family: var(--lc-font);
}

.lc-shell {
  position: relative;
  display: block;
  overflow: hidden;
  padding-left: var(--lc-gutter-width);
  border: 1px solid var(--lc-border);
  border-radius: var(--lc-radius);
  background: var(--lc-bg);
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

.lc-editor:focus-within .lc-shell {
  border-color: color-mix(in srgb, var(--lc-focus), var(--lc-border) 45%);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--lc-focus), transparent 82%);
}

.lc-gutter {
  position: absolute;
  inset: 0 auto 0 0;
  display: grid;
  align-content: start;
  gap: 0;
  box-sizing: border-box;
  width: var(--lc-gutter-width);
  min-width: 0;
  overflow: hidden;
  padding: var(--lc-pad-y) 0.625rem var(--lc-pad-y) 0.5rem;
  border-right: 1px solid var(--lc-border);
  background: color-mix(in srgb, var(--lc-bg), black 10%);
  color: var(--lc-muted);
  font-size: var(--lc-font-size);
  line-height: var(--lc-line-height);
  text-align: right;
  user-select: none;
}

.lc-input-wrap {
  position: relative;
  min-height: 10rem;
}

.lc-highlight,
.lc-textarea {
  box-sizing: border-box;
  width: 100%;
  min-height: 100%;
  margin: 0;
  padding: var(--lc-pad-y) var(--lc-pad-x);
  border: 0;
  font: inherit;
  font-size: var(--lc-font-size);
  line-height: var(--lc-line-height);
  white-space: pre;
  tab-size: 2;
}

.lc-highlight {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.lc-highlight code {
  display: block;
  min-height: 100%;
}

.lc-textarea {
  position: relative;
  z-index: 2;
  display: block;
  resize: none;
  outline: none;
  background: transparent;
  color: transparent;
  caret-color: var(--lc-fg);
  -webkit-text-fill-color: transparent;
}

.lc-textarea::selection {
  background: color-mix(in srgb, var(--lc-keyword), transparent 65%);
  color: transparent;
}

.lc-token-keyword { color: var(--lc-keyword); }
.lc-token-string { color: var(--lc-string); }
.lc-token-number { color: var(--lc-number); }
.lc-token-comment { color: var(--lc-comment); }
.lc-token-identifier { color: var(--lc-identifier); }
.lc-token-operator,
.lc-token-bracket { color: var(--lc-operator); }
.lc-token-boolean,
.lc-token-null { color: #c4b5fd; }
.lc-token-tag { color: var(--lc-keyword); }
.lc-token-attribute { color: var(--lc-number); }

.lc-completions[hidden] {
  display: none !important;
}

.lc-completions {
  position: absolute;
  z-index: 3;
  left: var(--lc-pad-x);
  top: 2.4rem;
  display: grid;
  min-width: 16rem;
  max-width: min(28rem, calc(100% - 1.5rem));
  max-height: 16rem;
  overflow: auto;
  border: 1px solid var(--lc-border);
  border-radius: calc(var(--lc-radius) - 0.125rem);
  background: var(--lc-panel);
  box-shadow: 0 16px 40px rgb(0 0 0 / 0.28);
}

.lc-completion[hidden] {
  display: none !important;
}

.lc-completion {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
  align-items: center;
  min-height: 2.25rem;
  padding: 0.45rem 0.7rem;
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--lc-border), transparent 35%);
  background: transparent;
  color: var(--lc-fg);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.lc-completion:hover,
.lc-completion.lc-active {
  background: color-mix(in srgb, var(--lc-keyword), transparent 88%);
}

.lc-completion-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lc-completion-kind,
.lc-completion-detail { color: var(--lc-muted); font-size: 0.75rem; }
.lc-completion-detail { grid-column: 1 / -1; }

.lc-diagnostics[hidden] {
  display: none !important;
}

.lc-invalid .lc-shell {
  border-color: var(--lc-error);
}

.lc-diagnostics {
  display: grid;
  gap: 0.3rem;
  margin-top: 0.45rem;
}

.lc-diagnostic {
  display: flex;
  gap: 0.45rem;
  align-items: baseline;
  color: var(--lc-muted);
  font-family: system-ui, sans-serif;
  font-size: 0.875rem;
}

.lc-diagnostic-error { color: var(--lc-error); }
.lc-diagnostic-severity { font-weight: 700; text-transform: uppercase; }

.lc-caret-mirror {
  position: fixed;
  left: -9999px;
  top: 0;
  visibility: hidden;
  overflow-wrap: normal;
  /* Match the textarea's wrapping (it is `white-space: pre`, no wrap) so the
     measured caret column lines up with the real caret. */
  white-space: pre;
}

/* ── View modes: Code / Preview / Split ───────────────────────────────── */

.lc-toolbar {
  display: inline-flex;
  gap: 2px;
  width: max-content;
  margin-bottom: 0.5rem;
  padding: 2px;
  border: 1px solid var(--lc-border);
  border-radius: calc(var(--lc-radius) - 0.2rem);
  background: color-mix(in srgb, var(--lc-bg), black 10%);
}

.lc-tab {
  appearance: none;
  border: 0;
  border-radius: calc(var(--lc-radius) - 0.32rem);
  background: transparent;
  color: var(--lc-muted);
  font: inherit;
  font-size: 0.8rem;
  padding: 0.3rem 0.75rem;
  cursor: pointer;
}

.lc-tab:hover {
  color: var(--lc-fg);
}

.lc-tab-active {
  background: var(--lc-panel);
  color: var(--lc-fg);
}

.lc-body {
  display: flex;
  gap: 0.6rem;
  align-items: stretch;
}

.lc-shell {
  flex: 1 1 0;
  min-width: 0;
}

.lc-preview {
  flex: 1 1 0;
  min-width: 0;
  min-height: 10rem;
  display: flex;
  overflow: hidden;
  border: 1px solid var(--lc-border);
  border-radius: var(--lc-radius);
  background: #ffffff;
}

.lc-preview-frame {
  flex: 1;
  width: 100%;
  border: 0;
  background: #ffffff;
}

/* Code-only view: hide the preview pane, code fills the row. */
.lc-view-code .lc-preview {
  display: none;
}

/* Preview-only view: hide the editor, preview fills the row. */
.lc-view-preview .lc-shell {
  display: none;
}
/* Split view keeps both panes (default flex layout). */

/* ── Read-only / static highlighted block ── */
.lc-readonly { position: relative; }
.lc-readonly .lc-highlight-static {
  position: static;
  inset: auto;
  z-index: auto;
  overflow-x: auto;
  pointer-events: auto;
  min-height: 0;
}
/* HEEx token kinds (in addition to the shared tag/attribute/string/comment). */
.lc-token-interpolation { color: var(--lc-identifier); }
.lc-token-eex { color: var(--lc-identifier); }
.lc-token-directive { color: var(--lc-keyword); font-style: italic; }
.lc-token-atom { color: #c4b5fd; }