:root {
  --pg-bg-0: #121826;
  --pg-bg-1: #20324a;
  --pg-bg-2: #304e69;
  --pg-text: #f2ece2;
  --pg-soft: rgba(242, 236, 226, 0.8);
  --pg-panel: rgba(10, 21, 31, 0.78);
  --pg-border: rgba(244, 187, 118, 0.25);
  --pg-accent: #f4bb76;
  --pg-accent-cool: #79d4ef;
}

.playground-page {
  margin: 0;
  color: var(--pg-text);
  background:
    radial-gradient(circle at 12% 12%, rgba(244, 187, 118, 0.22), transparent 28%),
    radial-gradient(circle at 88% 2%, rgba(121, 212, 239, 0.2), transparent 26%),
    linear-gradient(160deg, var(--pg-bg-0) 0%, var(--pg-bg-1) 48%, var(--pg-bg-2) 100%);
  background-attachment: fixed;
  font-family: Cambria, "Palatino Linotype", "Book Antiqua", serif;
}

.playground-page .container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 1rem 2.6rem;
}

.playground-page .page-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  margin: 0 -1rem;
  padding: 0.8rem 1rem;
  background: rgba(10, 18, 28, 0.72);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(244, 187, 118, 0.22);
}

.playground-main {
  padding-top: 1rem;
  display: grid;
  gap: 0.85rem;
}

.panel {
  border: 1px solid var(--pg-border);
  border-radius: 16px;
  background: var(--pg-panel);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.22);
  padding: 0.9rem;
}

.hero h1 {
  margin: 0.65rem 0 0.75rem;
  color: #fff2df;
  font-size: clamp(1.8rem, 4.3vw, 2.9rem);
}

.hero p {
  margin: 0;
  color: var(--pg-soft);
  line-height: 1.6;
}

.kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  color: #ffd8a7;
  font-weight: 700;
}

h2 {
  margin: 0 0 0.7rem;
  color: #ffe8c7;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.badge {
  border-radius: 999px;
  padding: 0.16rem 0.52rem;
  font-size: 0.72rem;
  font-weight: 700;
}

.neutral { background: rgba(176, 191, 206, 0.2); color: #dce7f3; }
.success { background: rgba(78, 214, 154, 0.2); color: #77e8b2; }
.warning { background: rgba(247, 200, 74, 0.2); color: #ffd96b; }
.danger { background: rgba(247, 122, 109, 0.2); color: #ffaaa1; }
.info { background: rgba(121, 212, 239, 0.2); color: #a4e8fb; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.65rem;
}

.section-head h2 {
  margin: 0;
}

.mini-btn {
  border: 1px solid rgba(244, 187, 118, 0.35);
  border-radius: 10px;
  background: rgba(20, 34, 47, 0.76);
  color: #f9ebd7;
  padding: 0.36rem 0.62rem;
  font-family: inherit;
  font-weight: 700;
  cursor: pointer;
}

.alerts {
  display: grid;
  gap: 0.55rem;
}

.alert {
  position: relative;
  border: 1px solid rgba(244, 187, 118, 0.2);
  border-radius: 12px;
  padding: 0.62rem 2rem 0.62rem 0.72rem;
  background: rgba(14, 28, 41, 0.74);
}

.alert strong {
  display: block;
  margin-bottom: 0.2rem;
}

.alert p {
  margin: 0;
  color: var(--pg-soft);
}

.alert-info { border-left: 3px solid #79d4ef; }
.alert-warning { border-left: 3px solid #f7c84a; }
.alert-danger { border-left: 3px solid #f57a6d; }

.close {
  position: absolute;
  top: 0.42rem;
  right: 0.45rem;
  border: 0;
  background: transparent;
  color: #f7e7d2;
  font-size: 1.1rem;
  cursor: pointer;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.65rem;
}

.tab-btn {
  border: 1px solid rgba(244, 187, 118, 0.3);
  border-radius: 999px;
  background: rgba(16, 30, 44, 0.76);
  color: #f9ecdd;
  padding: 0.35rem 0.72rem;
  font-weight: 700;
  cursor: pointer;
}

.tab-btn.active {
  color: #2a1807;
  border-color: rgba(255, 232, 194, 0.86);
  background: linear-gradient(120deg, #f4bb76, #ffe1b8);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.callout {
  border: 1px solid rgba(121, 212, 239, 0.36);
  border-left-width: 4px;
  border-radius: 12px;
  padding: 0.62rem 0.72rem;
  background: rgba(12, 28, 41, 0.72);
}

.callout h3 { margin: 0 0 0.3rem; color: #cceffd; }
.callout p { margin: 0; color: var(--pg-soft); }

.snippet {
  margin: 0;
  border: 1px solid rgba(121, 212, 239, 0.3);
  border-radius: 12px;
  background: rgba(10, 21, 33, 0.8);
  padding: 0.65rem 0.75rem;
  color: #d8f3ff;
  overflow: auto;
}

.checklist {
  margin: 0;
  padding-left: 1.05rem;
  color: var(--pg-soft);
  display: grid;
  gap: 0.35rem;
}

.accordion {
  display: grid;
  gap: 0.5rem;
}

.acc-item {
  border: 1px solid rgba(244, 187, 118, 0.22);
  border-radius: 12px;
  overflow: hidden;
  background: rgba(16, 30, 44, 0.68);
}

.acc-trigger {
  width: 100%;
  border: 0;
  background: transparent;
  color: #ffe9cb;
  cursor: pointer;
  padding: 0.62rem 0.72rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: inherit;
  font-weight: 700;
}

.acc-icon {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  color: #2a1909;
  background: linear-gradient(120deg, #f4bb76, #ffe1b8);
}

.acc-content {
  height: 0;
  overflow: hidden;
  transition: height 0.28s ease;
}

.acc-inner {
  padding: 0 0.72rem 0.72rem;
  color: var(--pg-soft);
}

@media (max-width: 720px) {
  .playground-page .container {
    padding: 0 0.75rem 2rem;
  }

  .playground-page .page-topbar {
    margin: 0 -0.75rem;
    padding: 0.75rem;
  }
}