/* Carrier Wave Manual - Main Stylesheet */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */

:root {
  /* Primary palette - derived from app icon */
  --color-primary: #9B4DCA;
  --color-accent: #C94BC4;
  --color-primary-light: #B06DD4;
  --color-accent-light: #D76BD2;

  /* Gradient */
  --gradient-brand: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", SFMono-Regular, ui-monospace, Menlo, Monaco, "Cascadia Mono", monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --sidebar-width: 260px;
  --toc-width: 220px;
  --header-height: 60px;
  --max-content-width: 800px;

  /* Borders */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* Light mode colors */
[data-theme="light"] {
  --color-bg: #FFFFFF;
  --color-surface: #F5F5F7;
  --color-surface-elevated: #FFFFFF;
  --color-border: #E5E5E7;
  --color-text: #1D1D1F;
  --color-text-secondary: #6E6E73;
  --color-text-tertiary: #AEAEB2;
  --color-link: var(--color-primary);
  --color-link-hover: var(--color-accent);
  --color-code-bg: #F5F5F7;
  --screenshot-border: 1px solid var(--color-border);
}

/* Dark mode colors (default) */
[data-theme="dark"] {
  --color-bg: #1A1A1E;
  --color-surface: #2C2C30;
  --color-surface-elevated: #3A3A3E;
  --color-border: #3D3D41;
  --color-text: #F5F5F7;
  --color-text-secondary: #A1A1A6;
  --color-text-tertiary: #6E6E73;
  --color-link: var(--color-primary-light);
  --color-link-hover: var(--color-accent-light);
  --color-code-bg: #2C2C30;
  --screenshot-border: none;
}

/* ============================================
   Reset & Base
   ============================================ */

*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

h1 { font-size: 2.25rem; margin-top: 0; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
  margin-top: 0;
  margin-bottom: var(--space-md);
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

strong {
  font-weight: 600;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--color-code-bg);
  padding: 0.125em 0.375em;
  border-radius: var(--radius-sm);
}

pre {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.5;
  background-color: var(--color-code-bg);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--space-lg) 0;
}

pre code {
  background: none;
  padding: 0;
}

blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 4px solid var(--color-primary);
  background-color: var(--color-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

blockquote p:last-child {
  margin-bottom: 0;
}

/* ============================================
   Header
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.header-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--space-xl);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text);
  font-weight: 600;
  font-size: 1.125rem;
}

.logo:hover {
  color: var(--color-text);
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.main-nav {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--space-sm) 0;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 1px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--color-surface);
  color: var(--color-text);
}

[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
}

/* ============================================
   Search
   ============================================ */

.search-wrapper {
  position: relative;
  flex: 0 1 280px;
  margin: 0 var(--space-md);
}

.search-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-input:focus {
  border-color: var(--color-primary);
  background-color: var(--color-surface-elevated);
}

.search-results {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-sm));
  left: 0;
  right: 0;
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  max-height: 400px;
  overflow-y: auto;
  z-index: 200;
}

.search-results.visible {
  display: block;
}

.search-result-item {
  display: block;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-fast);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background-color: var(--color-surface);
}

.search-result-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text);
}

.search-result-section {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

.search-result-snippet {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-top: 2px;
  line-height: 1.4;
}

.search-result-snippet mark,
.search-result-title mark {
  background-color: rgba(155, 77, 202, 0.3);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}

.search-no-results {
  padding: var(--space-md);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 0.875rem;
}

/* ============================================
   Layout
   ============================================ */

.site-wrapper {
  display: flex;
  padding-top: var(--header-height);
  min-height: 100vh;
}

/* ============================================
   Sidebar
   ============================================ */

.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  padding: var(--space-lg);
  background-color: var(--color-surface);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
}

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

.sidebar-link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  margin: var(--space-xs) 0;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.sidebar-link:hover {
  background-color: var(--color-surface-elevated);
  color: var(--color-text);
}

.sidebar-link.active {
  background-color: var(--color-primary);
  color: white;
}

/* ============================================
   Main Content
   ============================================ */

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

.page-content {
  max-width: var(--max-content-width);
}

.page-header {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.page-description {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
}

.content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: var(--screenshot-border);
  margin: var(--space-lg) 0;
}

.content ul, .content ol {
  margin: var(--space-md) 0;
  padding-left: var(--space-lg);
}

.content li {
  margin: var(--space-sm) 0;
}

.content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
}

.content th, .content td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.content th {
  font-weight: 600;
  background-color: var(--color-surface);
}

.content tr:hover td {
  background-color: var(--color-surface);
}

/* ============================================
   Table of Contents (Right sidebar)
   ============================================ */

.toc {
  position: fixed;
  top: var(--header-height);
  right: 0;
  bottom: 0;
  width: var(--toc-width);
  padding: var(--space-lg);
  overflow-y: auto;
  border-left: 1px solid var(--color-border);
}

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

.toc nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc nav li {
  margin: var(--space-xs) 0;
}

.toc nav a {
  display: block;
  padding: var(--space-xs) 0;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.toc nav a:hover {
  color: var(--color-text);
}

/* ============================================
   Page Navigation (Prev/Next)
   ============================================ */

.page-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.nav-prev, .nav-next {
  display: flex;
  flex-direction: column;
  padding: var(--space-md);
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  flex: 1;
  max-width: 50%;
  transition: background-color var(--transition-fast);
}

.nav-prev:hover, .nav-next:hover {
  background-color: var(--color-surface-elevated);
}

.nav-next {
  text-align: right;
  margin-left: auto;
}

.nav-label {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-title {
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--space-xs);
}

/* ============================================
   Section List
   ============================================ */

.section-nav h2 {
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

.section-list {
  list-style: none;
  padding: 0;
}

.section-list li {
  margin: var(--space-sm) 0;
}

.section-list a {
  font-weight: 500;
}

.item-description {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) var(--space-lg);
  margin-left: var(--sidebar-width);
}

.footer-content {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin: 0;
}

/* ============================================
   Landing Page
   ============================================ */

.landing-page {
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--space-2xl);
}

/* Override margins for landing page (no sidebar) */
.main-content:has(.landing-page) {
  margin-left: 0;
  max-width: none;
  display: flex;
  justify-content: center;
}

body:has(.landing-page) .site-footer {
  margin-left: 0;
}

/* Pages without sidebar (quickstart, glossary, etc.) */
body:not(:has(.sidebar)) .main-content {
  margin-left: 0;
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--space-2xl);
}

body:not(:has(.sidebar)) .site-footer {
  margin-left: 0;
}

.landing-page .site-wrapper {
  display: block;
}

.hero {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.hero-icon {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-lg);
  box-shadow: 0 8px 32px rgba(155, 77, 202, 0.3);
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  margin: 0 0 var(--space-sm);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin: 0;
}

.audience-selector {
  padding: var(--space-2xl) 0;
}

.selector-title {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-2xl);
}

.audience-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.audience-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.audience-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  border-color: var(--color-primary);
}

.card-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  border-radius: 50%;
  margin-bottom: var(--space-lg);
  color: white;
}

.card-title {
  font-size: 1.25rem;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.card-description {
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-md);
  flex: 1;
}

.card-cta {
  font-size: 0.875rem;
  color: var(--color-primary-light);
  font-weight: 500;
}

/* ============================================
   Callout Boxes
   ============================================ */

.callout {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
  border-left: 4px solid;
}

.callout-tip {
  background-color: rgba(155, 77, 202, 0.1);
  border-color: var(--color-primary);
}

.callout-warning {
  background-color: rgba(255, 179, 0, 0.1);
  border-color: #FFB300;
}

.callout-note {
  background-color: rgba(64, 156, 255, 0.1);
  border-color: #409CFF;
}

.callout-title {
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.callout p:last-child {
  margin-bottom: 0;
}

/* ============================================
   Glossary Term Tooltip
   ============================================ */

.glossary-term {
  border-bottom: 1px dotted var(--color-primary);
  cursor: help;
  position: relative;
}

.glossary-term:hover .glossary-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.glossary-tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  white-space: nowrap;
  max-width: 300px;
  white-space: normal;
  z-index: 10;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ============================================
   Responsive
   ============================================ */

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

@media (max-width: 900px) {
  .sidebar {
    display: none;
  }

  .main-content {
    margin-left: 0;
  }

  .site-footer {
    margin-left: 0;
  }

  .audience-cards {
    grid-template-columns: 1fr;
  }

  .main-nav {
    display: none;
  }

  .search-wrapper {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-icon {
    width: 80px;
    height: 80px;
  }

  .main-content {
    padding: var(--space-lg);
  }

  .landing-page {
    padding: var(--space-lg);
  }
}