/* Interactive Playground CSS */

.playground-active {
  --pg-bg: #001A24;
  --pg-panel: #002A3A;
  --pg-panel-raised: #003D54;
  --pg-code: #0B1220;
  --pg-border: rgba(255, 255, 255, 0.12);
  --pg-border-brand: rgba(0, 157, 100, 0.4);
  --pg-ink-strong: #F1F5F9;
  --pg-ink-base: #94A3B8;
  --pg-ink-muted: #94A3B8;
}

.playground-hero {
  padding: var(--space-8) 0 var(--space-10);
  text-align: center;
  background: #001A24;
}

.playground-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--space-4);
  color: #fff;
}

.playground-hero p {
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.55);
  max-width: 52ch;
  margin: 0 auto var(--space-6);
}

.playground-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* Initial State */
.playground-initial {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-9) 0;
}

.playground-illustration {
  width: 280px;
  height: 200px;
}

.playground-illustration svg {
  width: 100%;
  height: 100%;
}

/* Active State */
.playground-active {
  display: none;
}

.playground-active.is-visible {
  display: block;
}

/* Header */
.playground-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--pg-panel);
  border: 1px solid var(--pg-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.endpoint-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
  min-width: 200px;
}

.endpoint-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pg-ink-muted);
}

.endpoint-url {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--primitive-green-500);
  background: rgba(0, 157, 100, 0.12);
  border: 1px solid rgba(0, 157, 100, 0.25);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  word-break: break-all;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.endpoint-url::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primitive-green-500);
  box-shadow: 0 0 0 2px rgba(0, 192, 122, 0.3);
  animation: live-pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

.copy-url-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}

.copy-url-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 255, 255, 0.2);
}

.copy-url-btn.copied {
  color: var(--primitive-green-500);
  border-color: rgba(0, 192, 122, 0.3);
}

@keyframes live-pulse {
  0%, 100% { box-shadow: 0 0 0 2px rgba(0, 192, 122, 0.3); }
  50%       { box-shadow: 0 0 0 5px rgba(0, 192, 122, 0.0); }
}

@media (prefers-reduced-motion: reduce) {
  .endpoint-url::before { animation: none; }
}

.session-timer {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--primitive-yellow-500);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255, 193, 7, 0.08);
  border: 1px solid rgba(255, 193, 7, 0.2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
}

/* Main Panels Grid */
.playground-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .playground-panels {
    grid-template-columns: 1fr;
  }
}

/* Panel Styles */
.playground-panel {
  background: var(--pg-panel);
  border: 1px solid var(--pg-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background: var(--pg-panel-raised);
  border-bottom: 1px solid var(--pg-border);
}

.panel-title {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #E2E8F0;
}

.panel-body {
  padding: var(--space-5);
}

/* Send Panel */
.send-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #CBD5E1;
}

.form-select,
.form-input {
  height: 40px;
  padding: 0 var(--space-3);
  background: var(--pg-code);
  border: 1.5px solid var(--pg-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--pg-ink-strong);
  outline: none;
  transition: border-color var(--dur-fast) var(--ease);
  color-scheme: dark;
}

.form-select:focus,
.form-input:focus {
  border-color: var(--primitive-green-600);
  box-shadow: 0 0 0 3px rgba(0, 157, 100, 0.18);
}

.form-textarea {
  background: var(--pg-code);
  border: 1.5px solid var(--pg-border);
  border-radius: var(--radius-md);
  color: var(--pg-ink-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  padding: var(--space-3);
  min-height: 160px;
  resize: vertical;
  outline: none;
  color-scheme: dark;
  transition: border-color var(--dur-fast) var(--ease);
}

.form-textarea:focus {
  border-color: var(--primitive-green-600);
  box-shadow: 0 0 0 3px rgba(0, 157, 100, 0.18);
}

.form-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--pg-ink-muted);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.form-divider::before,
.form-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--pg-border);
}

/* Send Button */
#send-btn {
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}

#send-btn::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
  transition: left var(--dur-slow) var(--ease);
  pointer-events: none;
}

#send-btn:hover::after {
  left: 140%;
}

@media (prefers-reduced-motion: reduce) {
  #send-btn::after { display: none; }
}

/* Curl Command */
.curl-section {
  margin-top: var(--space-4);
}

.curl-command {
  position: relative;
  background: var(--pg-code);
  border: 1px solid var(--pg-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-4);
}

.curl-command::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primitive-green-600), transparent 70%);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.curl-command pre {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  color: #94A3B8;
  white-space: pre-wrap;
  word-break: break-all;
  margin: 0;
}

.curl-copy-btn {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: var(--space-1) var(--space-3);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}

.curl-copy-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 255, 255, 0.2);
}

.curl-copy-btn.copied {
  color: var(--primitive-green-500);
  border-color: rgba(0, 192, 122, 0.3);
}

/* Event Stats */
.event-stats {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--pg-code);
  border-bottom: 1px solid var(--pg-border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--pg-ink-muted);
}

.event-stats span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Event Feed */
.event-feed {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-height: 400px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--pg-panel-raised) transparent;
}

.event-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--pg-panel-raised);
  border: 1px solid var(--pg-border);
  border-left: 3px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}

.event-card:hover {
  border-left-color: var(--primitive-green-600);
  background: rgba(0, 61, 84, 0.8);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.event-card.selected {
  border-left-color: var(--primitive-green-500);
  background: rgba(0, 157, 100, 0.1);
  border-color: rgba(0, 157, 100, 0.3);
}

.event-card.status-delivered { border-left-color: var(--primitive-green-600); }
.event-card.status-pending { border-left-color: var(--primitive-yellow-500); }
.event-card.status-failed { border-left-color: var(--primitive-red-600); }

.event-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  flex: 1;
  min-width: 0;
}

.event-type-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--pg-ink-strong);
  background: none;
  padding: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.event-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.event-timestamp {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--pg-ink-muted);
}

.event-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
}

.event-status.success,
.event-status.delivered {
  color: var(--primitive-green-500);
  background: rgba(0, 192, 122, 0.12);
}

.event-status.pending {
  color: var(--primitive-yellow-400);
  background: rgba(255, 193, 7, 0.12);
}

.event-status.failed {
  color: #F87171;
  background: rgba(220, 38, 38, 0.12);
}

.event-status::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.empty-feed {
  padding: var(--space-10) var(--space-4);
  text-align: center;
  color: var(--pg-ink-muted);
}

.empty-feed p:first-of-type {
  font-size: 14px;
  font-weight: 500;
  color: var(--pg-ink-base);
  margin-bottom: var(--space-1);
}

.empty-feed p:last-of-type {
  font-size: 12px;
  font-family: var(--font-mono);
}

.empty-feed-icon {
  width: 40px;
  height: 40px;
  opacity: 0.2;
  margin-bottom: var(--space-3);
}

/* Payload Inspector */
.playground-inspector {
  margin-top: var(--space-6);
}

.inspector-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--pg-border);
  padding: 0 var(--space-5);
  background: var(--pg-panel-raised);
}

.inspector-tab {
  padding: var(--space-3) var(--space-4);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  color: var(--pg-ink-muted);
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: color var(--dur-fast) var(--ease);
}

.inspector-tab:hover {
  color: var(--pg-ink-base);
}

.inspector-tab.active {
  color: var(--primitive-green-500);
  border-bottom-color: var(--primitive-green-500);
}

.inspector-content {
  padding: var(--space-4);
  min-height: 200px;
  max-height: 360px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--pg-panel-raised) transparent;
}

.inspector-panel {
  display: none;
}

.inspector-panel.active {
  display: block;
}

.inspector-pre {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: #94A3B8;
  background: var(--pg-code);
  border: 1px solid var(--pg-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  white-space: pre;
  overflow-x: auto;
  margin: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--pg-panel-raised) transparent;
}

.headers-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.header-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--pg-code);
  border: 1px solid var(--pg-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 11px;
  margin-bottom: var(--space-2);
}

.header-key {
  color: var(--primitive-green-500);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-value {
  color: var(--pg-ink-base);
  word-break: break-all;
}

.delivery-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.delivery-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  background: var(--pg-code);
  border: 1px solid var(--pg-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: var(--space-2);
}

.delivery-stat-label {
  color: var(--pg-ink-muted);
  font-size: 12px;
}

.delivery-stat-value {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--pg-ink-strong);
  font-size: 12px;
}

.no-inspector {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--pg-ink-muted);
  font-size: 13px;
  font-style: italic;
  font-family: var(--font-mono);
}

/* Loading States */
.loading-state {
  padding: var(--space-10) 0;
  color: rgba(255, 255, 255, 0.4);
}

.loading-spinner {
  border-color: rgba(255, 255, 255, 0.1);
  border-top-color: var(--primitive-green-500);
}

.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-9) 0;
  text-align: center;
}

.error-icon {
  width: 48px;
  height: 48px;
  color: #F87171;
}

.error-message {
  color: rgba(255, 255, 255, 0.4);
  font-size: 14px;
  max-width: 400px;
}

.btn-loading {
  position: relative;
  pointer-events: none;
  opacity: 0.7;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Mobile Responsive */
@media (max-width: 640px) {
  .playground-hero {
    padding: var(--space-6) 0 var(--space-6);
  }

  .playground-hero h1 {
    font-size: 28px;
  }

  .playground-hero p {
    font-size: 16px;
  }

  .playground-header {
    flex-direction: column;
    align-items: stretch;
  }

  .endpoint-info {
    flex-direction: column;
    align-items: flex-start;
  }

  .curl-command pre {
    font-size: 11px;
  }
}

/* ============================================================
   Fix text alignment — interactive panels should be left-aligned
   (playground-hero sets text-align:center for title/subtitle only)
   ============================================================ */
.playground-panels,
.playground-active,
.send-form,
.curl-command,
.curl-command pre,
.form-textarea,
.inspector-content,
.panel-body,
.event-feed,
.headers-list,
.playground-inspector {
  text-align: left;
}