/**
 * Splash Page Styles
 * Styles for public-facing splash pages: About, Docs, Playground, Login
 *
 * Uses Funky theme system variables (--pro-*) for consistent theming
 * Uses --pro-spacing-* for density-aware spacing
 */

/* ========================================
   Smooth Scrolling for Anchor Links
   ======================================== */
html {
  scroll-behavior: smooth;
}

/* Offset for fixed header when navigating to anchors */
:target {
  scroll-margin-top: calc(var(--nav-height-horizontal, 56px) + 1rem);
}

/* ========================================
   CSS Variables - Border Radius Scale
   ======================================== */
:root {
  /* Border Radius Scale */
  --splash-radius-sm: 6px;
  --splash-radius-md: 8px;
  --splash-radius-lg: 12px;

  /* Map to pro-* variables for compatibility */
  --pro-border-radius: var(--splash-radius-md);
  --pro-border-radius-sm: var(--splash-radius-sm);
  --pro-border-radius-lg: var(--splash-radius-lg);
}

/* ========================================
   Shared Components
   Reusable across all splash pages
   Uses --pro-spacing-* which are density-aware
   ======================================== */

/* Hero Section */
.splash-hero {
  text-align: center;
  padding: var(--pro-spacing-lg);
  margin-bottom: var(--pro-spacing-lg);
  background: linear-gradient(135deg, var(--pro-bg-secondary) 0%, var(--pro-bg-primary) 100%);
  border-radius: var(--splash-radius-lg);
  border: 1px solid var(--pro-border-color);
}

.splash-hero h1 {
  font-size: var(--pro-font-size-4xl);
  font-weight: var(--pro-font-weight-bold);
  margin-bottom: var(--pro-spacing-md);
  background: linear-gradient(135deg, var(--pro-accent-primary), var(--pro-accent-info));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.splash-hero .tagline {
  font-size: var(--pro-font-size-2xl);
  color: var(--pro-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-weight: var(--pro-font-weight-light);
  letter-spacing: 0.05em;
}

.splash-hero .tagline-sub {
  font-size: var(--pro-font-size-md);
  color: var(--pro-text-tertiary);
  max-width: 600px;
  margin: var(--pro-spacing-md) auto 0;
}

/* Content Card */
.splash-card {
  background: var(--pro-bg-secondary);
  border: 1px solid var(--pro-border-color);
  border-radius: var(--splash-radius-lg);
  padding: var(--pro-spacing-lg);
  margin-bottom: var(--pro-spacing-lg);
}

/* Section */
.splash-section {
  margin-bottom: var(--pro-spacing-lg);
  padding-top: var(--pro-spacing-md);
}

.splash-section h2 {
  font-size: var(--pro-font-size-2xl);
  font-weight: var(--pro-font-weight-semibold);
  color: var(--pro-text-primary);
  margin-bottom: var(--pro-spacing-md);
  padding-bottom: var(--pro-spacing-xs);
  border-bottom: 2px solid var(--pro-accent-primary);
}

.splash-section h3 {
  font-size: var(--pro-font-size-lg);
  font-weight: var(--pro-font-weight-semibold);
  color: var(--pro-text-primary);
  margin: var(--pro-spacing-sm) 0 var(--pro-spacing-sm);
}

.splash-section h4 {
  font-size: var(--pro-font-size-base);
  font-weight: var(--pro-font-weight-semibold);
  color: var(--pro-text-secondary);
  margin: var(--pro-spacing-sm) 0 var(--pro-spacing-sm);
}

.splash-section p {
  margin-bottom: var(--pro-spacing-sm);
  color: var(--pro-text-secondary);
  line-height: var(--pro-line-height-relaxed);
}

/* Callout */
.splash-callout {
  background: var(--pro-bg-secondary);
  border-left: 4px solid var(--pro-accent-primary);
  padding: var(--pro-spacing-sm) var(--pro-spacing-md);
  margin: var(--pro-spacing-md) 0;
  border-radius: 0 var(--splash-radius-md) var(--splash-radius-md) 0;
}

.splash-callout.success {
  border-left-color: var(--pro-accent-success);
}

.splash-callout.warning {
  border-left-color: var(--pro-accent-warning);
}

.splash-callout.splash-callout-info {
  border-left-color: var(--pro-accent-info);
  display: flex;
  align-items: flex-start;
  gap: var(--pro-spacing-sm);
}

.splash-callout.info {
  border-left-color: var(--pro-accent-info);
}

.splash-callout-icon {
  flex-shrink: 0;
  font-size: 1.25rem;
  color: var(--pro-accent-info);
  margin-top: 0.125rem;
}

.splash-callout-content {
  flex: 1;
  line-height: 1.6;
  color: var(--pro-text-secondary);
}

.splash-callout-content strong {
  color: var(--pro-text-primary);
}

.splash-callout p {
  margin: 0;
}

/* Code Block */
.splash-pre {
  background: var(--pro-bg-elevated);
  border: 1px solid var(--pro-border-color);
  border-radius: var(--splash-radius-md);
  padding: var(--pro-spacing-sm);
  overflow-x: auto;
  margin: var(--pro-spacing-sm) 0;
}

.splash-pre code {
  background: none;
  padding: 0;
  color: var(--pro-text-primary);
  font-size: var(--pro-font-size-sm);
  line-height: var(--pro-line-height-normal);
  font-family: var(--pro-font-mono);
}

/* Code Syntax Highlighting */
.code-comment { color: var(--pro-text-muted); }
.code-keyword { color: var(--pro-accent-info); }
.code-string { color: var(--pro-accent-success); }
.code-function { color: var(--pro-accent-primary); }
.code-variable { color: var(--pro-accent-purple); }

/* Diagram/ASCII Art Block */
.splash-diagram {
  background: var(--pro-bg-elevated);
  border: 1px solid var(--pro-border-color);
  border-radius: var(--splash-radius-md);
  padding: var(--pro-spacing-md);
  margin: var(--pro-spacing-md) 0;
  overflow-x: auto;
  font-family: var(--pro-font-mono);
  font-size: var(--pro-font-size-xs);
  line-height: 1.4;
  color: var(--pro-text-secondary);
  white-space: pre;
}

.splash-diagram pre {
  margin: 0;
  padding: 0;
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  white-space: pre;
  overflow-x: visible;
}

.splash-diagram figcaption {
  margin-bottom: 0;
}

/* Table */
.splash-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--pro-spacing-sm) 0;
  font-size: var(--pro-font-size-sm);
}

.splash-table th,
.splash-table td {
  padding: var(--pro-spacing-xs) var(--pro-spacing-sm);
  text-align: left;
  border: 1px solid var(--pro-border-color);
}

.splash-table th {
  background: var(--pro-bg-tertiary);
  font-weight: var(--pro-font-weight-semibold);
  color: var(--pro-text-primary);
}

.splash-table td {
  background: var(--pro-bg-secondary);
  color: var(--pro-text-secondary);
}

/* Grid */
.splash-grid {
  display: grid;
  gap: var(--pro-spacing-md);
  margin: var(--pro-spacing-md) 0;
}

.splash-grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.splash-grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* Footer */
.splash-footer {
  text-align: center;
  padding: var(--pro-spacing-lg);
  border-top: 1px solid var(--pro-border-color);
  color: var(--pro-text-muted);
  font-size: var(--pro-font-size-sm);
  margin-top: var(--pro-spacing-lg);
}

.splash-footer .quote {
  font-style: italic;
  color: var(--pro-text-secondary);
  font-size: var(--pro-font-size-base);
  margin-bottom: var(--pro-spacing-sm);
}

/* ========================================
   About Page Specific
   ======================================== */

/* About Content Container - density-aware */
.about-content {
  padding: var(--pro-spacing-lg);
}

/* Override Bootstrap py-4 utility with density-aware spacing */
.about-content.py-4 {
  padding-top: var(--pro-spacing-lg) !important;
  padding-bottom: var(--pro-spacing-lg) !important;
}

/* TOC Navigation */
.about-toc {
  background: var(--pro-bg-secondary);
  border: 1px solid var(--pro-border-color);
  border-radius: var(--splash-radius-lg);
  padding: var(--pro-spacing-md);
  margin-bottom: var(--pro-spacing-lg);
}

.about-toc h2 {
  font-size: var(--pro-font-size-sm);
  color: var(--pro-text-secondary);
  margin-bottom: var(--pro-spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: none;
  padding-bottom: 0;
}

.about-toc-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--pro-spacing-xs);
  list-style: none;
  padding: 0;
  margin: 0;
}

.about-toc-list a {
  color: var(--pro-accent-info);
  text-decoration: none;
  font-size: var(--pro-font-size-sm);
  padding: var(--pro-spacing-xs) 0;
  display: block;
  transition: color 0.2s;
}

.about-toc-list a:hover {
  color: var(--pro-accent-primary);
}

/* Principles Cards */
.about-principles {
  display: grid;
  gap: var(--pro-spacing-md);
  margin: var(--pro-spacing-md) 0;
  overflow: hidden;
}

.about-principle {
  background: var(--pro-bg-secondary);
  border: 1px solid var(--pro-border-color);
  border-radius: var(--splash-radius-lg);
  padding: var(--pro-spacing-md);
  overflow: hidden;
  min-width: 0;
  margin-bottom: var(--pro-spacing-md);
}

/* Remove bottom margin when inside a grid (gap handles spacing) */
.about-principles .about-principle {
  margin-bottom: 0;
}

.about-principle h4 {
  color: var(--pro-accent-primary);
  margin-top: 0;
  margin-bottom: var(--pro-spacing-sm);
}

/* Comparison Boxes */
.about-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--pro-spacing-sm);
  margin-bottom: var(--pro-spacing-md);
}

.about-comparison-box {
  background: var(--pro-bg-secondary);
  border: 1px solid var(--pro-border-color);
  border-radius: var(--splash-radius-md);
  padding: var(--pro-spacing-sm);
}

.about-comparison-box.bad {
  border-color: var(--pro-accent-danger);
}

.about-comparison-box.good {
  border-color: var(--pro-accent-success);
}

.about-comparison-box h5 {
  font-size: var(--pro-font-size-sm);
  margin-bottom: var(--pro-spacing-xs);
}

.about-comparison-box.bad h5 {
  color: var(--pro-accent-danger);
}

.about-comparison-box.good h5 {
  color: var(--pro-accent-success);
}

/* ========================================
   Density-Specific Font Sizes for Splash
   ======================================== */
[data-density="compact"] .splash-hero h1 {
  font-size: calc(var(--pro-font-size-4xl) * 0.85);
}

[data-density="compact"] .splash-hero .tagline {
  font-size: calc(var(--pro-font-size-2xl) * 0.85);
}

[data-density="compact"] .splash-section h2 {
  font-size: calc(var(--pro-font-size-2xl) * 0.85);
}

[data-density="compact"] .splash-section h3 {
  font-size: calc(var(--pro-font-size-lg) * 0.9);
}

[data-density="compact"] .splash-section p,
[data-density="compact"] .about-comparison-box,
[data-density="compact"] .about-principle {
  font-size: var(--pro-font-size-sm);
}

[data-density="spacious"] .splash-hero h1 {
  font-size: calc(var(--pro-font-size-4xl) * 1.15);
}

[data-density="spacious"] .splash-hero .tagline {
  font-size: calc(var(--pro-font-size-2xl) * 1.1);
}

[data-density="spacious"] .splash-section h2 {
  font-size: calc(var(--pro-font-size-2xl) * 1.1);
}

[data-density="spacious"] .splash-section h3 {
  font-size: calc(var(--pro-font-size-lg) * 1.1);
}

[data-density="spacious"] .splash-section p,
[data-density="spacious"] .about-comparison-box,
[data-density="spacious"] .about-principle {
  font-size: var(--pro-font-size-lg);
  line-height: 1.8;
}

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-width: 768px) {
  .splash-hero h1 {
    font-size: var(--pro-font-size-2xl);
  }

  .splash-hero .tagline {
    font-size: var(--pro-font-size-base);
  }

  .about-comparison {
    grid-template-columns: 1fr;
  }

  .splash-diagram {
    font-size: 0.65rem;
  }

  /* Reset horizontal nav items to vertical on mobile */
  [data-nav-position="top"] .nav-group,
  [data-nav-position="bottom"] .nav-group,
  [data-nav-position="top"] .nav-standalone,
  [data-nav-position="bottom"] .nav-standalone {
    position: relative;
    flex-direction: column;
    width: 100%;
  }

  /* Add bottom padding for MobileCore nav bar */
  .about-content {
    padding-bottom: calc(var(--mobile-core-height, 56px) + var(--pro-spacing-lg, 24px));
  }

  /* Ensure footer has extra spacing above MobileCore */
  .splash-footer {
    margin-bottom: var(--pro-spacing-md);
  }
}

/* ========================================
   Sidebar Footer - Icon buttons with tooltips
   ======================================== */
.sidebar-footer {
  padding: var(--pro-spacing-sm);
  margin-top: auto;
  border-top: 1px solid var(--pro-border-color);
  display: flex;
  gap: var(--pro-spacing-xs);
  justify-content: center;
}

.sidebar-footer .nav-link,
.sidebar-footer .pwa-install-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--pro-border-radius);
  color: var(--pro-text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
}

.sidebar-footer .nav-link:hover,
.sidebar-footer .pwa-install-button:hover {
  background: var(--pro-bg-hover, rgba(255, 255, 255, 0.1));
  color: var(--pro-primary);
}

.sidebar-footer .nav-link .nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

/* Hide text labels - always icon only */
.sidebar-footer .nav-link .nav-text,
.sidebar-footer .pwa-install-button .pwa-install-text {
  display: none;
}

/* Tooltips for all footer items */
.sidebar-footer .nav-link[data-tooltip]:hover::after,
.sidebar-footer .pwa-install-button[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 0.75rem);
  top: 50%;
  transform: translateY(-50%);
  background: var(--pro-bg-secondary);
  color: var(--pro-text-primary);
  padding: var(--pro-spacing-xs) var(--pro-spacing-sm);
  border-radius: 4px;
  font-size: 0.8125rem;
  white-space: nowrap;
  z-index: 1000;
  box-shadow: var(--pro-shadow-md);
}

/* Tooltip position for top nav - show below instead of to the right */
[data-nav-position="top"] .sidebar-footer .nav-link[data-tooltip]:hover::after,
[data-nav-position="top"] .sidebar-footer .pwa-install-button[data-tooltip]:hover::after {
  left: 50%;
  top: calc(100% + 0.5rem);
  transform: translateX(-50%);
}

/* Remove border-top for top nav on splash pages */
[data-nav-position="top"] .sidebar-footer {
  border-top: none;
}

/* Ensure sidebar uses flexbox for footer positioning */
.sidebar {
  display: flex;
  flex-direction: column;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
}

/* ============================================
   HIGH CONTRAST MODE
   ============================================ */

@media (prefers-contrast: high) {
  .splash-hero {
    border-width: 2px;
    background: var(--pro-bg-secondary);
  }

  .splash-hero h1 {
    -webkit-text-fill-color: unset;
    background: none;
    color: var(--pro-text-primary);
  }

  .splash-card {
    border-width: 2px;
  }

  .splash-section h2 {
    border-bottom-width: 3px;
  }

  .splash-callout {
    border-left-width: 6px;
  }

  .splash-pre {
    border-width: 2px;
  }

  .splash-table th,
  .splash-table td {
    border-width: 2px;
  }

  .about-toc {
    border-width: 2px;
  }

  .about-toc-list a {
    text-decoration: underline;
  }

  .about-principle {
    border-width: 2px;
  }

  .about-comparison-box {
    border-width: 2px;
  }

  .sidebar-footer .nav-link:focus-visible,
  .sidebar-footer .pwa-install-button:focus-visible {
    outline: 3px solid;
    outline-offset: 2px;
  }
}