/* ==========================================================================
   Component Styles
   ========================================================================== */

/* 
 * Component Architecture:
 * - Each component is self-contained with clear responsibilities
 * - Uses design tokens for consistency and maintainability
 * - Progressive enhancement approach for interactions
 * - Accessible and semantic structure
 */

/* ==========================================================================
   Main Logo Component
   ========================================================================== */

/* 
 * Hero logo with subtle interactive feedback
 * Uses transform for performance-optimized animations
 */
.logo {
  width: var(--logo-size);
  height: var(--logo-size);
  object-fit: contain;
  margin-bottom: var(--space-4xl);
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.08));
  transition: transform var(--timing-slow) var(--easing-smooth);
}

.logo:hover {
  transform: scale(1.07) rotate(-2deg);
}

/* ==========================================================================
   Author Cards Component
   ========================================================================== */

/* 
 * Card-based layout for author information
 * Responsive design adapts layout from horizontal to vertical on mobile
 * Focuses on readability and professional presentation
 */

/* Author Container */
.authors {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  padding: 0 var(--space-4xl);
}

/* Individual Author Card */
.author {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-3xl) var(--space-3xl);
  min-width: var(--author-min-width);
  margin: var(--space-xs) 0;
  transition: all var(--timing-base);
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  text-align: left;
}

/* Author Avatar */
.author-avatar {
  width: var(--avatar-size);
  height: var(--avatar-size);
  object-fit: cover;
  border-radius: var(--radius-full);
  background: var(--color-background-primary);
  flex-shrink: 0;
}

/* Author Text Content */
.author-name {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
  letter-spacing: var(--letter-spacing-wide);
}

.author-affil {
  display: block;
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-tight);
}

.author-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Author Link Wrapper */
.author-link {
  text-decoration: none;
  color: inherit;
  display: flex;
}

/* ==========================================================================
   Logo Grid Component
   ========================================================================== */

/* 
 * Responsive grid of partner/tool logos
 * Grayscale-to-color hover effect for visual hierarchy
 * Adaptive sizing for different logo dimensions
 */

/* Grid Container */
.logo-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-5xl);
  padding: var(--space-lg) var(--space-3xl);
}

/* Base Grid Logo Styles */
.grid-logo {
  height: var(--grid-logo-base);
  width: auto;
  filter: grayscale(1) brightness(0.85) opacity(0.8);
  transition: all 0.4s var(--easing-smooth);
  cursor: pointer;
  object-fit: contain;
}

/* Logo-Specific Size Adjustments */
.logo-weac { 
  height: var(--grid-logo-weac); 
}

.logo-pypi { 
  height: var(--grid-logo-pypi); 
}

.logo-csar { 
  margin: 0 -32px; /* Negative margin to compensate for logo whitespace */
}

/* Logo Link Wrapper */
.logo-link {
  display: inline-block;
}

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

/* 
 * Footer with navigation buttons
 * Positioned at bottom with consistent spacing
 * Matches overall design system aesthetics
 */

/* Footer Container */
.footer {
  width: 100%;
  padding: var(--space-3xl) var(--space-4xl);
  margin-top: var(--space-4xl);
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Footer Buttons Container */
.footer-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

/* Footer Button Styles */
.footer-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  text-decoration: none;
  transition: all var(--timing-base) var(--easing-smooth);
  position: relative;
}

/* Button Hover Effects */
.footer-button:hover {
  transform: translateY(-1px);
}

/* Button Active State */
.footer-button:active {
  transform: translateY(0);
}

/* Button Text */
.button-text {
  position: relative;
  z-index: 1;
}

/* Button Icon */
.button-icon {
  width: 60px;
  height: 60px;
  object-fit: contain;
  filter: grayscale(1) brightness(0.85) opacity(0.8);
  transition: all 0.4s var(--easing-smooth);
  cursor: pointer;
}

/* Icon hover effect - similar to logo grid */
.footer-button:hover .button-icon {
  filter: grayscale(0) brightness(1) opacity(1);
  transform: scale(1.05);
}

/* Button Focus State for Accessibility */
.footer-button:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Footer Button Tooltips */
.footer-button[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-tooltip-bg);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-xs);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-tight);
  display: inline-block;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--timing-fast) ease-out;
  z-index: 1001;
  box-shadow: var(--shadow-subtle);
  backdrop-filter: blur(2px);
}

/* Footer Button Tooltip Visibility */
.footer-button[data-tooltip]:hover::after {
  opacity: 0.9;
}

/* More specific tooltip styles to ensure visibility */
.footer .footer-button[data-tooltip]::after {
  content: attr(data-tooltip) !important;
  top: -40px !important;
  bottom: auto !important;
  min-width: auto !important;
  max-width: none !important;
  width: auto !important;
  padding: var(--space-sm) var(--space-md) !important;
  text-align: center !important;
  white-space: nowrap !important;
  opacity: 0;
  visibility: visible;
}

.footer .footer-button[data-tooltip]:hover::after {
  opacity: 0.9 !important;
  visibility: visible !important;
}

/* Responsive adjustments for smaller screens */
@media (max-width: 768px) {
  .footer-buttons {
    gap: var(--space-lg);
  }
  
  .button-icon {
    width: 50px;
    height: 50px;
  }
}