/* ExperimentFramework DocFx Theme
 * Modern, vibrant theme inspired by Linear, Vercel, Stripe
 * -------------------------------------------------------- */

:root {
  /* Core Brand - Electric Indigo to Violet gradient */
  --ef-indigo: #6366f1;
  --ef-violet: #8b5cf6;
  --ef-purple: #a855f7;

  /* Warm Accent - Coral/Orange for energy */
  --ef-coral: #f97316;
  --ef-rose: #fb7185;

  /* Cool Accent - Cyan for highlights */
  --ef-cyan: #22d3ee;
  --ef-teal: #14b8a6;

  /* Success/Error */
  --ef-emerald: #10b981;
  --ef-red: #ef4444;

  /* Primary mappings */
  --ef-primary: var(--ef-indigo);
  --ef-primary-hover: #818cf8;

  /* Gradients - The star of the show */
  --ef-gradient-primary: linear-gradient(135deg, var(--ef-indigo) 0%, var(--ef-violet) 50%, var(--ef-purple) 100%);
  --ef-gradient-warm: linear-gradient(135deg, var(--ef-coral) 0%, var(--ef-rose) 100%);
  --ef-gradient-cool: linear-gradient(135deg, var(--ef-cyan) 0%, var(--ef-teal) 100%);
  --ef-gradient-aurora: linear-gradient(135deg, var(--ef-indigo) 0%, var(--ef-violet) 33%, var(--ef-rose) 66%, var(--ef-coral) 100%);
  --ef-gradient-subtle: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
}

/* ========================================
   LIGHT MODE - Clean & Bright
   ======================================== */
[data-bs-theme="light"] {
  --bs-body-bg: #fafafa;
  --bs-body-color: #18181b;

  --ef-surface: #ffffff;
  --ef-surface-hover: #f4f4f5;
  --ef-surface-border: #e4e4e7;
  --ef-surface-elevated: #ffffff;

  --ef-text-primary: #09090b;
  --ef-text-secondary: #52525b;
  --ef-text-muted: #a1a1aa;

  --ef-code-bg: #f4f4f5;
  --ef-code-border: #e4e4e7;
  --ef-code-text: #18181b;

  --ef-sidebar-bg: #ffffff;
  --ef-sidebar-border: #e4e4e7;
  --ef-sidebar-hover: rgba(99, 102, 241, 0.08);
  --ef-sidebar-active: rgba(99, 102, 241, 0.12);

  --ef-navbar-bg: rgba(255, 255, 255, 0.8);
  --ef-navbar-border: rgba(0, 0, 0, 0.06);
}

/* ========================================
   DARK MODE - Rich & Immersive
   ======================================== */
[data-bs-theme="dark"] {
  --bs-body-bg: #09090b;
  --bs-body-color: #fafafa;

  --ef-surface: #18181b;
  --ef-surface-hover: #27272a;
  --ef-surface-border: #27272a;
  --ef-surface-elevated: #1f1f23;

  --ef-text-primary: #fafafa;
  --ef-text-secondary: #a1a1aa;
  --ef-text-muted: #71717a;

  --ef-code-bg: #1f1f23;
  --ef-code-border: #27272a;
  --ef-code-text: #e4e4e7;

  --ef-sidebar-bg: #0f0f12;
  --ef-sidebar-border: #27272a;
  --ef-sidebar-hover: rgba(99, 102, 241, 0.12);
  --ef-sidebar-active: rgba(99, 102, 241, 0.18);

  --ef-navbar-bg: rgba(9, 9, 11, 0.85);
  --ef-navbar-border: rgba(255, 255, 255, 0.06);

  --ef-primary: #818cf8;
  --ef-primary-hover: #a5b4fc;
}

/* ========================================
   TYPOGRAPHY - Clean & Modern
   ======================================== */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.7;
  letter-spacing: -0.011em;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: var(--ef-text-primary);
  letter-spacing: -0.03em;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--ef-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

h2 {
  font-size: 1.875rem;
  position: relative;
  padding-bottom: 0.75rem;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--ef-gradient-primary);
  border-radius: 2px;
}

h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p, li {
  color: var(--ef-text-secondary);
}

a {
  color: var(--ef-primary);
  text-decoration: none;
  transition: all 0.15s ease;
}

a:hover {
  color: var(--ef-primary-hover);
}

/* Fancy underline effect on article links */
article p a,
article li a {
  background-image: linear-gradient(var(--ef-primary), var(--ef-primary));
  background-size: 0% 2px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.3s ease;
}

article p a:hover,
article li a:hover {
  background-size: 100% 2px;
  text-decoration: none;
}

/* ========================================
   NAVBAR - Floating & Glassy
   ======================================== */
.navbar {
  background: var(--ef-navbar-bg) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--ef-navbar-border) !important;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.03);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ef-text-primary) !important;
  letter-spacing: -0.02em;
}

.navbar-brand:hover {
  background: var(--ef-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-link {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--ef-text-secondary) !important;
  padding: 0.5rem 0.875rem !important;
  border-radius: 8px;
  transition: all 0.15s ease;
}

.nav-link:hover {
  color: var(--ef-text-primary) !important;
  background: var(--ef-sidebar-hover);
}

.nav-link.active {
  color: var(--ef-primary) !important;
  background: var(--ef-sidebar-active);
}

/* ========================================
   SIDEBAR - Clean & Minimal
   ======================================== */
.toc,
.sidetoc,
.filter {
  background: var(--ef-sidebar-bg);
  border-right: 1px solid var(--ef-sidebar-border);
}

.toc .nav-link,
.sidetoc .nav-link {
  color: var(--ef-text-secondary) !important;
  padding: 0.5rem 0.875rem;
  border-radius: 8px;
  margin: 2px 8px;
  font-size: 0.875rem;
  font-weight: 450;
  transition: all 0.15s ease;
}

.toc .nav-link:hover,
.sidetoc .nav-link:hover {
  background: var(--ef-sidebar-hover);
  color: var(--ef-text-primary) !important;
}

.toc .nav-link.active,
.sidetoc .nav-link.active {
  background: var(--ef-sidebar-active);
  color: var(--ef-primary) !important;
  font-weight: 600;
  position: relative;
}

.toc .nav-link.active::before,
.sidetoc .nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--ef-gradient-primary);
  border-radius: 0 2px 2px 0;
}

/* ========================================
   MAIN CONTENT - Card Style
   ======================================== */
article {
  background: var(--ef-surface);
  border-radius: 16px;
  padding: 3rem;
  margin: 1.5rem;
  box-shadow: 0 0 0 1px var(--ef-surface-border),
              0 4px 6px -1px rgba(0, 0, 0, 0.05),
              0 2px 4px -2px rgba(0, 0, 0, 0.05);
}

[data-bs-theme="dark"] article {
  box-shadow: 0 0 0 1px var(--ef-surface-border),
              0 25px 50px -12px rgba(0, 0, 0, 0.4);
}

/* ========================================
   CODE - Sleek & Readable
   ======================================== */
code {
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
  font-size: 0.875em;
  background: var(--ef-code-bg);
  padding: 0.2em 0.45em;
  border-radius: 6px;
  color: var(--ef-violet);
  font-weight: 500;
}

[data-bs-theme="dark"] code {
  color: #c4b5fd;
}

pre {
  background: var(--ef-code-bg) !important;
  border: 1px solid var(--ef-code-border);
  border-radius: 12px;
  padding: 1.5rem;
  overflow-x: auto;
  position: relative;
}

pre::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--ef-gradient-primary);
  border-radius: 12px 12px 0 0;
}

pre code {
  background: transparent;
  padding: 0;
  border: none;
  color: var(--ef-code-text);
  font-size: 0.85rem;
  line-height: 1.7;
  font-weight: 400;
}

/* Syntax Highlighting - Vibrant */
.hljs-keyword { color: var(--ef-violet); font-weight: 600; }
.hljs-string { color: var(--ef-emerald); }
.hljs-number { color: var(--ef-coral); }
.hljs-comment { color: var(--ef-text-muted); font-style: italic; }
.hljs-class, .hljs-type { color: var(--ef-cyan); }
.hljs-function { color: var(--ef-indigo); }
.hljs-params { color: var(--ef-rose); }
.hljs-attr { color: var(--ef-teal); }

[data-bs-theme="dark"] .hljs-keyword { color: #c4b5fd; }
[data-bs-theme="dark"] .hljs-function { color: #a5b4fc; }
[data-bs-theme="dark"] .hljs-class { color: var(--ef-cyan); }

/* ========================================
   TABLES - Modern & Clean
   ======================================== */
table {
  width: 100%;
  margin: 2rem 0;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--ef-surface-border);
}

th {
  background: var(--ef-gradient-subtle);
  color: var(--ef-text-primary);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 1rem 1.25rem;
}

td {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--ef-surface-border);
  color: var(--ef-text-secondary);
}

tr:hover td {
  background: var(--ef-surface-hover);
}

/* ========================================
   ALERTS - Colorful & Clear
   ======================================== */
.alert,
blockquote,
.TIP, .NOTE, .WARNING, .IMPORTANT, .CAUTION {
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  border: none;
  border-left: 4px solid;
  position: relative;
  overflow: hidden;
}

.alert-info, .NOTE, .TIP {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.08) 100%);
  border-color: var(--ef-indigo);
}

.alert-warning, .WARNING, .CAUTION {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.1) 0%, rgba(251, 113, 133, 0.08) 100%);
  border-color: var(--ef-coral);
}

.alert-danger, .IMPORTANT {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(251, 113, 133, 0.08) 100%);
  border-color: var(--ef-red);
}

.alert-success {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(20, 184, 166, 0.08) 100%);
  border-color: var(--ef-emerald);
}

blockquote {
  background: var(--ef-surface-hover);
  border-color: var(--ef-violet);
  font-style: italic;
  color: var(--ef-text-secondary);
}

/* ========================================
   BUTTONS - Gradient & Bold
   ======================================== */
.btn-primary {
  background: var(--ef-gradient-primary);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline-primary {
  color: var(--ef-primary);
  border: 2px solid var(--ef-primary);
  border-radius: 10px;
  font-weight: 600;
  background: transparent;
  transition: all 0.2s ease;
}

.btn-outline-primary:hover {
  background: var(--ef-primary);
  color: white;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.25);
}

/* ========================================
   SEARCH - Sleek Input
   ======================================== */
.search-input,
#search-query {
  background: var(--ef-surface) !important;
  border: 2px solid var(--ef-surface-border) !important;
  border-radius: 10px !important;
  padding: 0.75rem 1rem !important;
  color: var(--ef-text-primary) !important;
  transition: all 0.2s ease;
  font-size: 0.9rem;
}

.search-input:focus,
#search-query:focus {
  border-color: var(--ef-primary) !important;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15) !important;
  outline: none;
}

.search-results {
  background: var(--ef-surface-elevated);
  border: 1px solid var(--ef-surface-border);
  border-radius: 12px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* ========================================
   API REFERENCE
   ======================================== */
.inheritance h5,
.inheritedMembers h5 {
  color: var(--ef-text-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.xref {
  color: var(--ef-primary);
  font-weight: 500;
}

/* ========================================
   BADGES - Pill Style
   ======================================== */
.badge {
  font-weight: 600;
  font-size: 0.7rem;
  padding: 0.35em 0.75em;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-primary {
  background: var(--ef-gradient-primary);
}

.badge-secondary {
  background: var(--ef-surface-hover);
  color: var(--ef-text-secondary);
}

/* ========================================
   BREADCRUMBS
   ======================================== */
.breadcrumb {
  background: transparent;
  padding: 0;
  margin-bottom: 1.5rem;
}

.breadcrumb-item {
  font-size: 0.85rem;
  color: var(--ef-text-muted);
}

.breadcrumb-item a {
  color: var(--ef-primary);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: '/';
  color: var(--ef-text-muted);
}

/* ========================================
   FOOTER
   ======================================== */
footer {
  background: var(--ef-surface);
  border-top: 1px solid var(--ef-surface-border);
  padding: 2.5rem;
  margin-top: 4rem;
  color: var(--ef-text-muted);
  font-size: 0.875rem;
}

/* ========================================
   SCROLLBAR - Subtle
   ======================================== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--ef-surface-border);
  border-radius: 10px;
  border: 3px solid var(--bs-body-bg);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ef-text-muted);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

article {
  animation: fadeInUp 0.4s ease-out;
}

/* Shimmer effect for loading states */
.loading {
  background: linear-gradient(90deg,
    var(--ef-surface-hover) 0%,
    var(--ef-surface) 50%,
    var(--ef-surface-hover) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
  article {
    margin: 0.5rem;
    padding: 1.5rem;
    border-radius: 0;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
}

/* ========================================
   EXPERIMENT FRAMEWORK SPECIFIC
   ======================================== */

/* Experiment badges with gradient */
.experiment-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  background: var(--ef-gradient-subtle);
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ef-primary);
}

/* Variant indicators */
.variant-a::before {
  content: 'A';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ef-gradient-primary);
  color: white;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  margin-right: 0.5rem;
}

.variant-b::before {
  content: 'B';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ef-gradient-warm);
  color: white;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  margin-right: 0.5rem;
}

/* Feature cards */
.feature-card {
  background: var(--ef-surface);
  border: 1px solid var(--ef-surface-border);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--ef-gradient-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  border-color: transparent;
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  opacity: 1;
}

/* Stats display */
.stats-result {
  font-family: 'JetBrains Mono', monospace;
  background: var(--ef-gradient-subtle);
  padding: 1.25rem;
  border-radius: 12px;
  border-left: 4px solid var(--ef-emerald);
}

/* Glow effect for emphasis */
.glow {
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.3),
              0 0 40px rgba(139, 92, 246, 0.2);
}

/* Section dividers with gradient */
.section-divider {
  display: flex;
  align-items: center;
  margin: 4rem 0 2.5rem;
  color: var(--ef-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.section-divider::before,
.section-divider::after {
  content: '';
  flex: 1;
  height: 2px;
  background: var(--ef-gradient-subtle);
}

.section-divider::before { margin-right: 1.5rem; }
.section-divider::after { margin-left: 1.5rem; }

/* Print */
@media print {
  .navbar, .toc, .sidetoc, footer { display: none; }
  article {
    box-shadow: none;
    border: none;
    margin: 0;
    padding: 0;
  }
}