:root {
  color-scheme: light dark;
  --accent: #4f6ef7;
  --border: color-mix(in srgb, currentColor 18%, transparent);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
  background: Canvas;
  color: CanvasText;
}
.site-header {
  padding: 3rem 1.5rem 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}
.site-header h1 { margin: 0 0 0.3em; font-size: 2rem; }
.tagline { max-width: 46em; margin: 0 0 0.6em; }
.links { color: var(--accent); }
.caret-mode {
  display: flex;
  align-items: center;
  gap: 0.6em;
  margin: 0.8rem 0 0;
  font-size: 0.9rem;
}
.caret-mode label { font-weight: 600; }
.caret-mode select {
  font: inherit;
  font-size: 0.88rem;
  padding: 0.3em 0.5em;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: inherit;
}
.caret-mode-note { color: color-mix(in srgb, CanvasText 55%, transparent); font-size: 0.82rem; }
a { color: var(--accent); }
main { max-width: 960px; margin: 0 auto; padding: 0 1.5rem 3rem; }
.support-banner {
  max-width: 960px;
  margin: 0 auto 1rem;
  padding: 0.9em 1.2em;
  border: 1px solid #d8a106;
  background: color-mix(in srgb, #d8a106 14%, transparent);
  border-radius: 10px;
}
.demo-section {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.4rem 1.4rem 1.6rem;
  margin: 1.4rem 0;
}
.demo-section h2 { margin: 0 0 0.4em; font-size: 1.25rem; }
.hint { color: color-mix(in srgb, CanvasText 62%, transparent); font-size: 0.92rem; max-width: 60em; }
kbd {
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 0 0.35em;
  font-size: 0.85em;
}
.editor {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9em 1em;
  min-height: 3em;
  background: color-mix(in srgb, CanvasText 3.5%, transparent);
}
.editor-full { min-height: 220px; }
.editor-comment { min-height: 90px; }
.editor:focus, .editor.ec-focused {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}
.editor h1, .editor h2, .editor h3 { margin: 0.4em 0 0.3em; }

.toolbar-slot { margin: 0.6rem 0 0.5rem; }
.ec-toolbar { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.ec-toolbar .ec-btn {
  min-width: 2.1em;
  height: 2.1em;
  border: 1px solid var(--border);
  background: transparent;
  color: inherit;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0 0.5em;
}
.ec-toolbar .ec-btn:hover { background: color-mix(in srgb, CanvasText 8%, transparent); }
.ec-toolbar .ec-btn.ec-active {
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  border-color: var(--accent);
}
.ec-toolbar .ec-btn:disabled { opacity: 0.4; cursor: default; }
.ec-toolbar .ec-block-select {
  height: 2.1em;
  border: 1px solid var(--border);
  background: transparent;
  color: inherit;
  border-radius: 6px;
  font-size: 0.85rem;
  padding: 0 0.3em;
}
.ec-table td { border-color: var(--border); }

.io-panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}
@media (max-width: 760px) { .io-panes { grid-template-columns: 1fr; } }
.io-pane h3 { margin: 0; font-size: 0.95rem; }
.io-sub { font-weight: 400; color: color-mix(in srgb, CanvasText 55%, transparent); font-size: 0.8em; }
.io-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.4rem; }
.io-head button, .import-actions button, .comment-actions button {
  border: 1px solid var(--border);
  background: transparent;
  color: inherit;
  border-radius: 6px;
  padding: 0.3em 0.9em;
  cursor: pointer;
  font-size: 0.88rem;
}
.io-head button:hover, .import-actions button:hover, .comment-actions button:hover {
  background: color-mix(in srgb, CanvasText 8%, transparent);
}
.io-out {
  margin: 0;
  padding: 0.8em 1em;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: color-mix(in srgb, CanvasText 4%, transparent);
  font-size: 0.78rem;
  max-height: 320px;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* Events monitor pane */
.events-out {
  margin: 0;
  padding: 0.4em 0.6em;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: color-mix(in srgb, CanvasText 4%, transparent);
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.76rem;
  line-height: 1.7;
  max-height: 280px;
  overflow: auto;
}
.events-empty {
  color: color-mix(in srgb, CanvasText 50%, transparent);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding: 0.35em 0.3em;
}
.ev-row {
  display: flex;
  align-items: baseline;
  gap: 0.6em;
  padding: 0 0.3em;
  border-radius: 4px;
}
.ev-row:nth-child(odd) { background: color-mix(in srgb, CanvasText 4%, transparent); }
.ev-time {
  flex: none;
  color: color-mix(in srgb, CanvasText 45%, transparent);
  font-variant-numeric: tabular-nums;
}
.ev-name { flex: none; font-weight: 600; }
.ev-detail {
  color: color-mix(in srgb, CanvasText 62%, transparent);
  min-width: 0;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}
.ev-tag {
  flex: none;
  min-width: 5.2em;
  text-align: center;
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.5;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 0.55em;
}
.ev-el {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}
.ev-ec {
  background: color-mix(in srgb, #2f9e63 16%, transparent);
  border-color: color-mix(in srgb, #2f9e63 40%, transparent);
}
.ev-doc {
  background: color-mix(in srgb, #a85fd6 16%, transparent);
  border-color: color-mix(in srgb, #a85fd6 40%, transparent);
}
.ev-cancelled {
  background: color-mix(in srgb, #d64545 18%, transparent);
  border-color: color-mix(in srgb, #d64545 45%, transparent);
}
.events-legend {
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
  color: color-mix(in srgb, CanvasText 58%, transparent);
}
.events-legend .ev-tag { min-width: 0; }
.import-box { margin-top: 1rem; }
.import-box textarea {
  width: 100%;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6em 0.8em;
  background: transparent;
  color: inherit;
  resize: vertical;
}
.import-actions { display: flex; gap: 0.6rem; margin-top: 0.5rem; }
.comment-actions { display: flex; align-items: center; gap: 0.8rem; margin-top: 0.6rem; }
.comment-status { color: color-mix(in srgb, CanvasText 60%, transparent); font-size: 0.88rem; }
.notes ul { padding-left: 1.2em; max-width: 60em; }
.notes li { margin-bottom: 0.6em; }
.site-footer {
  text-align: center;
  color: color-mix(in srgb, CanvasText 55%, transparent);
  font-size: 0.85rem;
  padding: 0 1.5rem 2.5rem;
}