/* LeakGoblin Documentation - CSS Styling */
/* UI/UX, Accessibility (WCAG 2.1 AA compliant), Light/Dark Themes */

:root {
  /* Color Palette - Light Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #f1f5f9;
  --bg-sidebar: #f8fafc;
  --border-color: #cbd5e1;
  --border-focus: #0284c7;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --primary-color: #15803d; /* Goblin Green - WCAG compliant contrast */
  --primary-hover: #166534;
  --primary-light: #dcfce7;
  --primary-dark: #14532d;

  --accent-color: #0284c7;
  --accent-hover: #0369a1;

  --code-bg: #1e293b;
  --code-text: #f8fafc;
  --code-highlight: #334155;

  --focus-ring: #0284c7;
  --focus-ring-offset: 2px;

  /* Severity badges */
  --badge-critical-bg: #fee2e2;
  --badge-critical-text: #991b1b;
  --badge-high-bg: #ffedd5;
  --badge-high-text: #9a3412;
  --badge-medium-bg: #fef9c3;
  --badge-medium-text: #854d0e;
  --badge-low-bg: #e0f2fe;
  --badge-low-text: #075985;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --sidebar-width: 280px;
  --header-height: 64px;
}

[data-theme="dark"] {
  /* Color Palette - Dark Theme */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #334155;
  --bg-sidebar: #1e293b;
  --border-color: #334155;
  --border-focus: #38bdf8;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;

  --primary-color: #22c55e;
  --primary-hover: #4ade80;
  --primary-light: #14532d;
  --primary-dark: #86efac;

  --accent-color: #38bdf8;
  --accent-hover: #7dd3fc;

  --code-bg: #020617;
  --code-text: #e2e8f0;
  --code-highlight: #1e293b;

  --focus-ring: #38bdf8;

  /* Severity badges */
  --badge-critical-bg: #7f1d1d;
  --badge-critical-text: #fecaca;
  --badge-high-bg: #7c2d12;
  --badge-high-text: #fed7aa;
  --badge-medium-bg: #713f12;
  --badge-medium-text: #fef08a;
  --badge-low-bg: #0c4a6e;
  --badge-low-text: #bae6fd;
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  line-height: 1.6;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* Skip link for Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--primary-color);
  color: var(--text-inverse);
  padding: 0.75rem 1.25rem;
  z-index: 9999;
  border-radius: 0 0 0.5rem 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--focus-ring);
}

/* Focus Visible Indicator for WCAG AA */
:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
  border-radius: 2px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; border-bottom: 2px solid var(--border-color); padding-bottom: 0.5rem; margin-top: 2rem; }
h3 { font-size: 1.35rem; margin-top: 1.5rem; }
h4 { font-size: 1.1rem; margin-top: 1.25rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

a {
  color: var(--accent-color);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--accent-hover);
}

/* Header & Navbar */
.app-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.25rem;
}

.brand-logo {
  font-size: 1.75rem;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Search Bar */
.search-container {
  position: relative;
  width: 260px;
}

.search-input {
  width: 100%;
  padding: 0.5rem 0.75rem 0.5rem 2.25rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-results-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  max-height: 300px;
  overflow-y: auto;
  z-index: 1001;
  display: none;
}

.search-results-dropdown.active {
  display: block;
}

.search-result-item {
  display: block;
  padding: 0.6rem 1rem;
  text-decoration: none;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

.search-result-item:hover, .search-result-item:focus {
  background-color: var(--bg-card);
  outline: none;
}

.search-result-title {
  font-weight: 600;
  font-size: 0.9rem;
}

.search-result-snippet {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Theme Toggle & Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  text-decoration: none;
}

.btn-icon {
  padding: 0.5rem;
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-icon:hover {
  background-color: var(--bg-card);
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--text-inverse);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  background-color: var(--bg-card);
}

.btn-sm {
  padding: 0.25rem 0.6rem;
  font-size: 0.8rem;
}

/* Mobile Menu Button */
.mobile-nav-toggle {
  display: none;
}

/* Layout Grid */
.layout-container {
  display: flex;
  flex: 1;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
}

/* Sidebar Navigation */
.sidebar-nav {
  width: var(--sidebar-width);
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  padding: 1.5rem 1rem;
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  flex-shrink: 0;
}

.nav-section {
  margin-bottom: 1.5rem;
}

.nav-section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  padding-left: 0.5rem;
}

.nav-list {
  list-style: none;
}

.nav-item {
  margin-bottom: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.4rem 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 0.375rem;
  font-size: 0.925rem;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.nav-link:hover {
  background-color: var(--bg-card);
  color: var(--text-primary);
}

.nav-link.active {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
}

[data-theme="dark"] .nav-link.active {
  background-color: var(--primary-light);
  color: var(--primary-dark);
}

/* Main Content Area */
.main-content {
  flex: 1;
  padding: 2rem 2.5rem;
  max-width: 900px;
  overflow-x: hidden;
}

/* Hero Section */
.hero-banner {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(2, 132, 199, 0.1) 100%);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 2rem;
  margin-bottom: 2.5rem;
  text-align: center;
}

.hero-logo {
  font-size: 3.5rem;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 1.5rem auto;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Code Blocks & Inline Code */
code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--bg-card);
  color: var(--primary-color);
  padding: 0.2em 0.4em;
  border-radius: 0.25rem;
  border: 1px solid var(--border-color);
}

pre {
  background-color: var(--code-bg);
  color: var(--code-text);
  padding: 1.25rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin: 1rem 0 1.5rem 0;
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.5;
  border: 1px solid var(--border-color);
}

pre code {
  background: none;
  color: inherit;
  padding: 0;
  border: none;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  background-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.25rem;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.copy-btn:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

/* Tables */
.table-container {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.925rem;
}

th, td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

th {
  background-color: var(--bg-card);
  font-weight: 600;
  color: var(--text-primary);
}

tr:last-child td {
  border-bottom: none;
}

/* Severity Badges */
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-critical { background-color: var(--badge-critical-bg); color: var(--badge-critical-text); }
.badge-high { background-color: var(--badge-high-bg); color: var(--badge-high-text); }
.badge-medium { background-color: var(--badge-medium-bg); color: var(--badge-medium-text); }
.badge-low { background-color: var(--badge-low-bg); color: var(--badge-low-text); }

/* Interactive Cards & Callouts */
.callout {
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--accent-color);
  background-color: var(--bg-card);
  border-radius: 0 0.5rem 0.5rem 0;
  margin: 1.5rem 0;
}

.callout-warning {
  border-left-color: #eab308;
}

.callout-title {
  font-weight: 700;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Live Playground UI */
.playground-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin: 2rem 0;
  box-shadow: var(--shadow-md);
}

.playground-controls {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.playground-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

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

.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  resize: vertical;
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
}

.findings-list {
  list-style: none;
  margin-top: 1rem;
}

.finding-item {
  padding: 0.75rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.finding-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.25rem;
}

.finding-name {
  font-weight: 700;
}

/* Config Builder Form UI */
.config-builder {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin: 2rem 0;
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  cursor: pointer;
}

/* On-Page TOC (Right Sidebar on Desktop) */
.toc-sidebar {
  width: 220px;
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  padding: 2rem 1rem;
  overflow-y: auto;
  font-size: 0.85rem;
  flex-shrink: 0;
}

@media (max-width: 1200px) {
  .toc-sidebar {
    display: none;
  }
}

.toc-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.toc-list {
  list-style: none;
  border-left: 2px solid var(--border-color);
  padding-left: 0.75rem;
}

.toc-item {
  margin-bottom: 0.4rem;
}

.toc-link {
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
}

.toc-link:hover, .toc-link.active {
  color: var(--primary-color);
  font-weight: 600;
}

/* Footer */
.app-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .sidebar-nav {
    position: fixed;
    left: -100%;
    top: var(--header-height);
    bottom: 0;
    z-index: 999;
    transition: left 0.25s ease;
    box-shadow: var(--shadow-lg);
  }

  .sidebar-nav.open {
    left: 0;
  }

  .mobile-nav-toggle {
    display: inline-flex;
  }

  .main-content {
    padding: 1.5rem 1rem;
  }

  .search-container {
    width: 180px;
  }
}

@media (max-width: 576px) {
  .app-header {
    padding: 0 1rem;
  }

  .brand-text {
    display: none;
  }

  .search-container {
    width: 140px;
  }
}