/* ========================================
   Capti Documentation Theme
   Inspired by Google/OpenAI clean design
   ======================================== */

:root {
  /* Color palette */
  --primary: #1a73e8;
  --primary-dark: #1557b0;
  --primary-light: #4285f4;
  --secondary: #5f6368;
  --background: #ffffff;
  --background-secondary: #f8f9fa;
  --surface: #ffffff;
  --text-primary: #202124;
  --text-secondary: #5f6368;
  --text-tertiary: #80868b;
  --border: #dadce0;
  --border-light: #e8eaed;
  --code-bg: #f1f3f4;
  --success: #34a853;
  --warning: #fbbc04;
  --error: #ea4335;
  
  /* Typography */
  --font-sans: 'Google Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Monaco, 'Cascadia Code', monospace;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* Layout */
  --sidebar-width: 280px;
  --content-max-width: 900px;
  --header-height: 64px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --background: #1e1e1e;
    --background-secondary: #252526;
    --surface: #2d2d2d;
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --text-tertiary: #80868b;
    --border: #3c4043;
    --border-light: #5f6368;
    --code-bg: #2d2d2d;
  }
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
}

/* Layout */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-lg);
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header-logo span {
  color: var(--primary);
}

.header-nav {
  display: flex;
  gap: var(--spacing-md);
  margin-left: auto;
}

.header-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 6px;
  transition: var(--transition-fast);
}

.header-nav a:hover {
  color: var(--primary);
  background: var(--background-secondary);
}

.main-container {
  display: flex;
  margin-top: var(--header-height);
  flex: 1;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--background-secondary);
  border-right: 1px solid var(--border);
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  overflow-y: auto;
  padding: var(--spacing-lg);
}

.sidebar-section {
  margin-bottom: var(--spacing-xl);
}

.sidebar-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-sm);
}

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

.sidebar-nav li {
  margin-bottom: 2px;
}

.sidebar-nav a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  border-radius: 6px;
  transition: var(--transition-fast);
}

.sidebar-nav a:hover {
  background: var(--border-light);
  color: var(--text-primary);
}

.sidebar-nav a.active {
  background: rgba(26, 115, 232, 0.1);
  color: var(--primary);
  font-weight: 500;
}

/* Main content */
.content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: var(--spacing-2xl);
  max-width: calc(var(--content-max-width) + var(--spacing-2xl) * 2);
}

.content-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
}

.content-title {
  font-size: 2.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
}

.content-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.3;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border-light); padding-bottom: var(--spacing-sm); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; color: var(--text-secondary); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

strong {
  font-weight: 600;
}

/* Code */
code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-primary);
}

pre {
  background: var(--code-bg);
  border-radius: 8px;
  padding: var(--spacing-md);
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--border-light);
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
  line-height: 1.6;
}

/* Lists */
ul, ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

li {
  margin-bottom: var(--spacing-xs);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-md);
  font-size: 0.875rem;
}

th, td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

th {
  font-weight: 600;
  background: var(--background-secondary);
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

/* Blockquote */
blockquote {
  border-left: 4px solid var(--primary);
  padding-left: var(--spacing-md);
  margin: var(--spacing-md) 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* Callout boxes */
.callout {
  padding: var(--spacing-md);
  border-radius: 8px;
  margin-bottom: var(--spacing-md);
  border-left: 4px solid;
}

.callout-info {
  background: rgba(26, 115, 232, 0.08);
  border-color: var(--primary);
}

.callout-warning {
  background: rgba(251, 188, 4, 0.08);
  border-color: var(--warning);
}

.callout-error {
  background: rgba(234, 67, 53, 0.08);
  border-color: var(--error);
}

.callout-success {
  background: rgba(52, 168, 83, 0.08);
  border-color: var(--success);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

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

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

.btn-secondary {
  background: var(--background-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--border-light);
}

/* Search */
.search-box {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.search-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  padding-left: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.875rem;
  background: var(--surface);
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
}

/* Footer */
.footer {
  margin-left: var(--sidebar-width);
  padding: var(--spacing-xl) var(--spacing-2xl);
  border-top: 1px solid var(--border-light);
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    transition: var(--transition-normal);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .content {
    margin-left: 0;
    padding: var(--spacing-lg);
  }
  
  .footer {
    margin-left: 0;
    padding: var(--spacing-lg);
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.content {
  animation: fadeIn 0.3s ease-out;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--background-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

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

/* Print styles */
@media print {
  .sidebar, .header {
    display: none;
  }
  
  .content {
    margin-left: 0;
    max-width: 100%;
  }
}