:root {
  --bg-dark: #090d16;
  --bg-sidebar: #0f172a;
  --bg-panel: #1e293b;
  --bg-code: #020617;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-active: #0284c7;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent-cyan: #38bdf8;
  --accent-teal: #0d9488;
  --method-post: #10b981;
  --method-get: #3b82f6;
  --status-200: #10b981;
  --status-err: #ef4444;
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Fira Code', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Header */
.docs-header {
  height: 64px;
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 10;
}

.docs-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  background: linear-gradient(135deg, #0284c7, #0d9488);
  color: #fff;
  font-weight: 800;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.4);
}

.docs-brand h1 {
  font-size: 1.1rem;
  font-weight: 800;
  color: #f8fafc;
  line-height: 1.2;
}

.docs-brand p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.e2ee-status-badge {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #34d399;
  border-radius: 50%;
  box-shadow: 0 0 8px #34d399;
}

/* Docs Layout (Split View: Sidebar + Main Workspace) */
.docs-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
.docs-sidebar {
  width: 320px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 16px 12px;
}

.docs-sidebar::-webkit-scrollbar {
  width: 4px;
}
.docs-sidebar::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.sidebar-category {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin: 16px 8px 8px;
}

.sidebar-category:first-child {
  margin-top: 0;
}

.endpoint-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 4px;
  border: 1px solid transparent;
}

.endpoint-item:hover {
  background: rgba(255, 255, 255, 0.04);
}

.endpoint-item.active {
  background: rgba(2, 132, 199, 0.15);
  border-color: rgba(2, 132, 199, 0.4);
}

.method-badge {
  font-size: 0.68rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  min-width: 42px;
  text-align: center;
}

.method-post {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.method-get {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.endpoint-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: #e2e8f0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Main Workspace */
.docs-workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 20px;
  gap: 16px;
  overflow-y: auto;
  background: var(--bg-dark);
}

.docs-workspace::-webkit-scrollbar {
  width: 6px;
}
.docs-workspace::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

/* Request Bar Panel */
.request-bar-panel {
  display: flex;
  gap: 10px;
  background: var(--bg-sidebar);
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  align-items: center;
}

.method-select {
  background: var(--bg-panel);
  color: var(--accent-cyan);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  font-weight: 800;
  font-family: var(--font-mono);
  outline: none;
  cursor: pointer;
}

.url-input {
  flex: 1;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  outline: none;
}

.url-input:focus {
  border-color: var(--accent-cyan);
}

.btn-send {
  background: linear-gradient(135deg, #0284c7, #0d9488);
  border: none;
  color: #fff;
  font-weight: 700;
  font-family: inherit;
  font-size: 0.9rem;
  padding: 10px 24px;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
  transition: all 0.2s ease;
}

.btn-send:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.6);
}

/* Playground Grid */
.playground-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.card-panel {
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card-header {
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.card-body {
  padding: 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.json-textarea {
  width: 100%;
  height: 200px;
  background: var(--bg-code);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  color: #38bdf8;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  outline: none;
  resize: vertical;
}

.json-textarea:focus {
  border-color: var(--accent-cyan);
}

.code-preview {
  background: var(--bg-code);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #38bdf8;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 200px;
  max-height: 280px;
  overflow-y: auto;
}

/* Response Panel */
.response-panel {
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.response-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.response-header h3 {
  font-size: 0.95rem;
  font-weight: 800;
  color: #f8fafc;
}

.status-badge {
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: rgba(148, 163, 184, 0.2);
  color: var(--text-muted);
}

.status-200 {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-500 {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}