/* playground */
.wrap-wide { max-width: 1440px; }
input, select { min-width: 0; }
.panel { min-width: 0; }
.panel-preview { position: sticky; top: 20px; }
.panel section { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }
.panel section h2 { margin-top: 18px; }
.panel section select,.panel section input[type=number] { width:100%; background:#1a1d24; color:var(--text); border:1px solid var(--border); border-radius:6px; padding:8px; }
.panel section input[type=range] { width:100%; accent-color:var(--gold); }
.panel section label { font-size:13px; }
.demo-option { display:block; margin-top:16px; }
.panel section .presets { margin-top:20px; }
.toggle-grid { grid-template-columns:repeat(2,minmax(0,1fr))!important; }
.preview-box { min-height:520px; }
@media(max-width:860px) { .panel-preview { position:static; grid-row:1; } .preview-box { min-height:360px; } }

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.tab {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-weight: 600;
}
.tab.active {
  border-color: var(--gold);
  color: var(--gold);
}

.playground {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 20px;
  align-items: start;
}

@media (max-width: 860px) {
  .playground { grid-template-columns: 1fr; }
}

.panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  padding: 16px 18px;
}

.panel h2 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.field {
  margin-bottom: 12px;
}

.field label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 4px;
  font-weight: 600;
}

.field input[type="text"],
.field input[type="number"],
.field select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #1a1d24;
  color: var(--text);
  font: inherit;
}

.color-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.color-row input[type="color"] {
  width: 40px;
  height: 36px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #1a1d24;
  cursor: pointer;
  flex-shrink: 0;
}

.color-row input[type="text"] { flex: 1; }

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.preset {
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #1a1d24;
  color: var(--text);
  font-size: 0.8rem;
  cursor: pointer;
}
.preset:hover { border-color: var(--gold); }

.url-out {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.url-out input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #1a1d24;
  color: #c5cad1;
  font-size: 0.8rem;
}

.btn {
  padding: 8px 14px;
  border: 1px solid var(--gold);
  border-radius: 6px;
  background: #2a2418;
  color: var(--gold);
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { background: #3a3220; }

.preview-box {
  border: 1px dashed var(--border);
  border-radius: 8px;
  background:
    repeating-conic-gradient(#1a1d24 0% 25%, #15181e 0% 50%) 50% / 16px 16px;
  padding: 24px;
  height: 420px;
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
}

.preview-frame {
  position: absolute;
  inset: 24px;
  width: calc(100% - 48px);
  height: calc(100% - 48px);
  border: none;
  background: transparent;
  display: block;
}

.preview-frame[hidden] {
  display: none !important;
}

.panel-preview h2 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.hint {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 10px;
}

.hidden { display: none !important; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.toggle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px 10px;
  margin: 10px 0 14px;
}

.toggle-grid label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--muted);
  cursor: pointer;
}

.toggle-grid input { accent-color: var(--gold); }

.apply-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.apply-row input {
  flex: 1;
  min-width: 0;
}

.btn-apply {
  flex-shrink: 0;
  padding: 0 14px;
  white-space: nowrap;
}

.subhead {
  font-size: 0.85rem;
  color: var(--gold);
  font-weight: 600;
  margin: 14px 0 6px;
}