/* Lutrin — the playground.
   Loaded after main.css, which supplies the tokens, the buttons and the
   editor chrome (.editor-bar, .cmd) this page reuses rather than reinvents. */

.pg-head {
  padding: clamp(2.5rem, 6vw, 4rem) 0 0;
}
.pg-head h1 {
  margin-bottom: 0.6rem;
}
.pg-app {
  padding: 2rem 0 clamp(3rem, 7vw, 5rem);
}

.pg-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}
.pg-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.pg-examples button {
  font: inherit;
  font-size: 0.85rem;
  background: none;
  border: 1px solid var(--line);
  color: var(--muted-strong);
  padding: 0.4rem 0.85rem;
  cursor: pointer;
}
.pg-examples button:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.pg-examples button[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
/* The one place the page reports on itself. Colour is never the only signal —
   the word changes too, because "compiling…", "3 slides" and "error" have to
   be legible to someone who cannot tell the states apart by hue. */
.pg-status {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--muted-strong);
}
.pg-status[data-kind="ok"] {
  color: var(--accent);
}
.pg-status[data-kind="bad"] {
  color: #b42318;
}

.pg-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 1.25rem;
  align-items: start;
}
@media (max-width: 900px) {
  .pg-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.pg-editor {
  background: var(--night);
  border: 1px solid var(--line-night);
  display: flex;
  flex-direction: column;
  /* Matches the frame beside it so the two panes agree on the fold. */
  height: min(70vh, 640px);
}
.pg-editor .editor-bar {
  flex: none;
}
#pg-source {
  flex: 1;
  width: 100%;
  resize: none;
  border: 0;
  outline: none;
  background: transparent;
  color: #dce6fb;
  font-family: var(--f-mono);
  font-size: 0.85rem;
  line-height: 1.65;
  padding: 1rem 1.1rem;
  /* Tab moves to the next control rather than indenting: a textarea that traps
     the keyboard is a keyboard trap, whatever it is for. */
  tab-size: 2;
}
#pg-source:disabled {
  color: #7386a8;
}
#pg-source:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: -2px;
}

.pg-out {
  background: var(--wash);
  border: 1px solid var(--line);
  height: min(70vh, 640px);
  overflow: hidden;
}
#pg-frame {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: transparent;
}

.pg-notes {
  margin-top: 1rem;
}
.pg-note {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  max-width: 78ch;
}
.pg-note-warn {
  color: #8a5a00;
}
.pg-note-bad {
  color: #b42318;
  font-weight: 500;
}
/* Not an error, and styled so it does not read as one: these are the things
   the browser cannot draw and the CLI can, which is an invitation rather than
   a failure. */
.pg-note-gap {
  color: var(--muted-strong);
  font-weight: 500;
  margin-bottom: 0.3rem;
}
.pg-gaps {
  margin: 0 0 0.6rem;
  padding-left: 1.2rem;
  font-size: 0.9rem;
  color: var(--muted-strong);
  max-width: 78ch;
}
.pg-gaps li {
  margin-bottom: 0.25rem;
}
.pg-note-cmd {
  font-family: var(--f-mono);
  font-size: 0.82rem;
  color: var(--accent);
}
.pg-error {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  color: #b42318;
  background: #fdf3f2;
  border-left: 3px solid #b42318;
  padding: 0.8rem 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  max-width: 78ch;
}

.pg-app .cmd {
  margin-top: 1.75rem;
}