/* ==========================================================================
   Playground: the editor and preview split.
   Denser than the marketing pages because it is a tool. Loads after
   style.css and reuses its tokens. Class names are shared with
   js/playground.js, so they stay as they are.
   ========================================================================== */

/* ---------- toolbar ---------- */
.pg-bar {
  display: flex;
  align-items: flex-end;
  gap: 28px;
  flex-wrap: wrap;
  padding: 16px 0 18px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  margin-bottom: 18px;
}
.pg-field { display: flex; flex-direction: column; gap: 7px; }
.pg-field > span {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
}
.pg-field select {
  background: var(--paper);
  border: 1px solid var(--rule-2);
  color: var(--ink);
  border-radius: 3px;
  padding: 8px 11px;
  font-size: .88rem;
  min-width: 230px;
}
.pg-actions { display: flex; gap: 10px; margin-left: auto; }
.pg-actions .btn { padding: 10px 18px; font-size: .88rem; }

/* ---------- split ---------- */
.pg-split {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 18px;
  align-items: start;
}

/* ---------- editor ---------- */
.pg-editor { border: 1px solid var(--rule-2); background: var(--paper); }
.ed-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 6px 10px 0;
  border-bottom: 1px solid var(--rule-2);
  background: var(--paper-2);
}
.ed-tab {
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--ink-3);
  padding: 8px 12px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: .76rem;
  transition: color .15s, border-color .15s;
}
.ed-tab:hover { color: var(--ink-2); }
.ed-tab.on { color: var(--ink); border-bottom-color: var(--ink); }

.vbadge {
  margin-left: auto;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: .64rem;
  letter-spacing: .1em;
  padding: 3px 9px;
  border: 1px solid;
  border-radius: 3px;
  text-transform: uppercase;
}
.vbadge.ok   { color: #1f6b3a; border-color: #1f6b3a; }
.vbadge.warn { color: #a3520c; border-color: #a3520c; }
.vbadge.bad  { color: #b3261e; border-color: #b3261e; }

.ed-pane { display: none; }
.ed-pane.on { display: block; }

.ed-wrap { display: flex; background: #141418; height: 460px; }
.ed-gutter {
  margin: 0;
  padding: 14px 10px 14px 16px;
  background: #141418;
  color: #4a4a55;
  font-family: var(--mono);
  font-size: .8rem;
  line-height: 1.65;
  text-align: right;
  user-select: none;
  overflow: hidden;
  border-right: 1px solid #26262e;
  border-radius: 0;
  min-width: 46px;
}
.ed-wrap textarea {
  flex: 1;
  background: none;
  border: 0;
  resize: none;
  outline: none;
  color: #e2e0d8;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: .8rem;
  line-height: 1.65;
  white-space: pre;
  overflow: auto;
  tab-size: 2;
}

.ed-validate { padding: 14px 16px; border-top: 1px solid var(--rule-2); }
.ed-validate h4 {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
  margin-bottom: 10px;
}
.vrow {
  font-size: .84rem;
  padding: 6px 10px;
  margin-bottom: 4px;
  border-left: 2px solid transparent;
  background: var(--paper-2);
  color: var(--ink-2);
}
.vrow.ok   { border-left-color: #1f6b3a; }
.vrow.warn { border-left-color: #a3520c; }
.vrow.bad  { border-left-color: #b3261e; }

/* ---------- side column ---------- */
.pg-side { display: grid; gap: 14px; }
.pg-card { border: 1px solid var(--rule-2); padding: 14px 16px; background: var(--paper); }
.pg-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.pg-card-head h4 {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
}
.pg-card-head h4 + .pg-mini,
.pg-card-head h4 + .pg-switch,
.pg-card-head h4 + .pg-meta { margin-left: auto; }
.pg-meta { font-size: .72rem; color: var(--ink-3); font-family: var(--mono); }
.pg-mini {
  background: none;
  border: 1px solid var(--rule-2);
  color: var(--ink-2);
  border-radius: 3px;
  padding: 3px 9px;
  font-family: var(--mono);
  font-size: .68rem;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
.pg-mini:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.pg-mini:disabled { color: var(--rule-2); border-color: var(--rule); cursor: default; background: none; }

.pg-hint { font-size: .78rem; color: var(--ink-3); line-height: 1.55; margin-top: 10px; }
.pg-hint b { color: var(--ink-2); }
.pg-hint code { font-size: .95em; }
.pg-state { font-size: .8rem; color: var(--ink-2); margin-bottom: 10px; }

/* ---------- preview stage ---------- */
.pv-stage {
  background: #0e0e12;
  border: 1px solid var(--rule-2);
  overflow: hidden;
  display: flex;
  justify-content: center;
}
.pv-host { transform-origin: top center; }
.pv-frame { width: 100%; height: 100%; border: 0; display: block; background: transparent; }

/* ---------- sensor readout ---------- */
.sensor-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 10px; }
.sr {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-size: .76rem;
  padding: 4px 8px;
  background: var(--paper-2);
  border-bottom: 1px solid var(--rule);
}
.sr span { color: var(--ink-3); font-family: var(--mono); font-size: .68rem; }
.sr b { color: var(--ink); font-variant-numeric: tabular-nums; font-family: var(--mono); font-weight: 600; }

/* ---------- toggle ---------- */
.pg-switch { position: relative; display: inline-block; width: 36px; height: 20px; flex: none; }
.pg-switch input { opacity: 0; width: 0; height: 0; }
.pg-switch span {
  position: absolute;
  inset: 0;
  cursor: pointer;
  background: var(--rule-2);
  border-radius: 999px;
  transition: background .18s;
}
.pg-switch span::before {
  content: '';
  position: absolute;
  width: 14px; height: 14px;
  left: 3px; top: 3px;
  background: var(--paper);
  border-radius: 50%;
  transition: transform .18s;
}
.pg-switch input:checked + span { background: var(--ink); }
.pg-switch input:checked + span::before { transform: translateX(16px); }

/* ---------- segmented control ---------- */
.pg-seg { display: flex; gap: 0; margin-bottom: 10px; border: 1px solid var(--rule-2); }
.pg-seg button {
  flex: 1;
  background: none;
  border: 0;
  border-right: 1px solid var(--rule-2);
  color: var(--ink-2);
  padding: 7px 6px;
  font-size: .78rem;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.pg-seg button:last-child { border-right: 0; }
.pg-seg button:hover { background: var(--paper-2); }
.pg-seg button.on { background: var(--ink); color: var(--paper); }

/* ---------- dumps + console ---------- */
.pg-dump, .pg-console {
  background: #141418;
  border: 1px solid #26262e;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: .74rem;
  line-height: 1.6;
  color: #b8b5ac;
  max-height: 130px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}
.pg-console:empty::after { content: 'nothing logged yet'; color: #5a5a66; }
.con-line { padding: 1px 0; }
.con-error { color: #ff8a80; }
.con-warn  { color: #ffc27a; }
.con-log   { color: #b8b5ac; }

/* ---------- size steppers ---------- */
.pg-sizefield { gap: 6px; }
.pg-steppers { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.pg-stepper { display: flex; align-items: stretch; border: 1px solid var(--rule-2); border-radius: 3px; overflow: hidden; background: var(--paper); }
.pg-stepper button {
  background: none;
  border: 0;
  color: var(--ink-2);
  width: 28px;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  transition: background .14s, color .14s;
}
.pg-stepper button:hover:not(:disabled) { background: var(--ink); color: var(--paper); }
.pg-stepper button:disabled { color: var(--rule-2); cursor: default; }
.pg-stepper span {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 7px 4px;
  min-width: 54px;
  justify-content: center;
  font-size: .76rem;
  color: var(--ink-3);
  border-inline: 1px solid var(--rule-2);
}
.pg-stepper span b { color: var(--ink); font-family: var(--mono); font-size: .84rem; }
.pg-range { font-family: var(--mono); font-size: .68rem; color: var(--ink-3); letter-spacing: 0; text-transform: none; font-weight: 400; }

.pg-inline-switch { display: inline-flex; align-items: center; gap: 7px; cursor: pointer; padding-left: 4px; }
.pg-inline-switch input { opacity: 0; width: 0; height: 0; position: absolute; }
.pg-inline-switch > span { position: relative; width: 32px; height: 18px; background: var(--rule-2); border-radius: 999px; transition: background .18s; flex: none; }
.pg-inline-switch > span::before { content: ''; position: absolute; width: 12px; height: 12px; left: 3px; top: 3px; background: var(--paper); border-radius: 50%; transition: transform .18s; }
.pg-inline-switch input:checked + span { background: var(--ink); }
.pg-inline-switch input:checked + span::before { transform: translateX(14px); }
.pg-inline-switch em { font-style: normal; font-size: .78rem; color: var(--ink-2); letter-spacing: 0; text-transform: none; font-weight: 500; }

.pg-rangerow { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 2px; }
.pg-rangelabel { font-family: var(--mono); font-size: .62rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; margin-right: 2px; }
.pg-to { font-size: .74rem; color: var(--ink-3); padding: 0 2px; }
.pg-stepper.sm button { width: 22px; font-size: .85rem; }
.pg-stepper.sm span { min-width: 26px; padding: 5px 2px; }
.pg-stepper.sm span b { font-size: .78rem; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .pg-split { grid-template-columns: 1fr; }
  .pg-side { grid-template-columns: 1fr 1fr; }
  .pg-side .pg-card:first-child { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .pg-side { grid-template-columns: 1fr; }
  .pg-actions { margin-left: 0; width: 100%; }
  .pg-actions .btn { flex: 1; }
  .ed-wrap { height: 340px; }
  .pg-field select { min-width: 0; width: 100%; }
}