/* ------------------------------------------- */
/* Animation Keyframes */
/* ------------------------------------------- */

/* Fade In */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Fade In Up */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade In Down */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Slide In Left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Slide In Right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scale In */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Pulse */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* Bounce */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* Scroll Indicator Bounce */
@keyframes scrollBounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(10px);
  }
}

/* Ticker Scroll */
@keyframes tickerScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Glow Effect */
@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(194, 51, 51, 0.5);
  }
  50% {
    box-shadow: 0 0 20px rgba(194, 51, 51, 0.8);
  }
}

/* Theme Transition */
@keyframes themeTransition {
  0% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1.1);
  }
  100% {
    filter: brightness(1);
  }
}

/* ------------------------------------------- */
/* Animation Utility Classes */
/* ------------------------------------------- */

.fade-in {
  opacity: 0;
  animation: fadeIn 0.6s ease-out forwards;
}

.fade-in-up {
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

.fade-in-down {
  opacity: 0;
  animation: fadeInDown 0.6s ease-out forwards;
}

.slide-in-left {
  opacity: 0;
  animation: slideInLeft 0.6s ease-out forwards;
}

.slide-in-right {
  opacity: 0;
  animation: slideInRight 0.6s ease-out forwards;
}

.scale-in {
  opacity: 0;
  animation: scaleIn 0.5s ease-out forwards;
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

.bounce {
  animation: bounce 2s ease infinite;
}

/* Animation Delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }

/* ------------------------------------------- */
/* Scroll-Triggered Animations */
/* ------------------------------------------- */

/* Elements waiting to be animated on scroll */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* ------------------------------------------- */
/* Hover Animations */
/* ------------------------------------------- */

.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.hover-glow {
  transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(194, 51, 51, 0.5);
}

.hover-scale {
  transition: transform 0.3s ease;
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* ------------------------------------------- */
/* Theme Transition */
/* ------------------------------------------- */

.theme-transitioning {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* ------------------------------------------- */
/* Loading States */
/* ------------------------------------------- */

.skeleton {
  background: linear-gradient(90deg, 
    var(--bg-elevated) 25%, 
    var(--bg-main) 50%, 
    var(--bg-elevated) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--bg-elevated);
  border-top-color: var(--flag-red);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}


/* ------------------------------------------- */
/* Share Buttons */
/* ------------------------------------------- */

.share-buttons {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  background: var(--bg-elevated);
  color: var(--text-soft);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.share-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.3);
}

.share-btn:active {
  transform: translateY(0);
}

/* Twitter/X button */
.share-btn-twitter:hover {
  background: #000;
  color: #fff;
  border-color: #000;
}

/* LinkedIn button */
.share-btn-linkedin:hover {
  background: #0A66C2;
  color: #fff;
  border-color: #0A66C2;
}

/* Copy link button */
.share-btn-copy:hover {
  background: var(--flag-red);
  color: #fff;
  border-color: var(--flag-red);
}

/* Share section header styling */
.share-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.share-section-header h2,
.share-section-header h3 {
  margin-bottom: 0;
}

/* Inline share buttons (for cards/findings) */
.share-buttons-inline {
  display: flex;
  gap: 0.375rem;
}

.share-buttons-inline .share-btn {
  width: 28px;
  height: 28px;
  font-size: 0.875rem;
}

/* Share buttons with label */
.share-buttons-labeled {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.share-buttons-labeled .share-label {
  font-size: 0.875rem;
  color: var(--text-soft);
  white-space: nowrap;
}


/* ------------------------------------------- */
/* Page Transitions */
/* ------------------------------------------- */

/* Page fade transition keyframes */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pageExit {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

/* Page transition wrapper */
.page-transition-wrapper {
  animation: pageEnter 0.4s ease-out forwards;
}

.page-transition-exit {
  animation: pageExit 0.3s ease-in forwards;
}

/* Main content fade-in on page load */
main {
  animation: pageEnter 0.5s ease-out;
}

/* Smooth scroll behavior for the entire page */
html {
  scroll-behavior: smooth;
}

/* Scroll snap for section-based navigation */
.scroll-snap-container {
  scroll-snap-type: y proximity;
}

.scroll-snap-section {
  scroll-snap-align: start;
  scroll-margin-top: 80px; /* Account for sticky navbar */
}

/* Section transition effects */
section {
  transition: opacity 0.3s ease-out;
}

/* Loading overlay for page transitions */
.page-loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-main);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.3s ease-out;
  pointer-events: none;
}

.page-loading-overlay.hidden {
  opacity: 0;
}

.page-loading-overlay .spinner {
  width: 50px;
  height: 50px;
}

/* Smooth transitions for internal navigation */
.smooth-scroll-link {
  scroll-behavior: smooth;
}

/* Easing for scroll animations */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
  
  /* Smooth section transitions on scroll */
  .section-transition {
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  main,
  .page-transition-wrapper,
  .page-transition-exit,
  .animate-on-scroll,
  .fade-in,
  .fade-in-up,
  .fade-in-down,
  .slide-in-left,
  .slide-in-right,
  .scale-in {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}


/* ------------------------------------------- */
/* Scroll to Top Button */
/* ------------------------------------------- */

.scroll-to-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--flag-red);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background-color 0.2s ease;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.scroll-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-to-top-btn:hover {
  background: var(--flag-blue);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.scroll-to-top-btn:active {
  transform: translateY(0);
}

/* ------------------------------------------- */
/* Lazy Loading States */
/* ------------------------------------------- */

/* Lazy loaded images */
img[data-src] {
  opacity: 0;
  transition: opacity 0.3s ease-out;
}

img.loaded,
img:not([data-src]) {
  opacity: 1;
}

/* Chart wrapper loading state */
.chart-wrapper {
  position: relative;
  min-height: 200px;
}

.chart-wrapper.loading::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.chart-wrapper.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border: 3px solid var(--bg-main);
  border-top-color: var(--flag-red);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  z-index: 2;
}

.chart-wrapper.loaded::before,
.chart-wrapper.loaded::after {
  display: none;
}

/* Lazy iframe placeholder */
iframe[data-src] {
  background: var(--bg-elevated);
}

/* Skeleton loading for content */
.skeleton-text {
  height: 1em;
  background: linear-gradient(90deg, 
    var(--bg-elevated) 25%, 
    var(--bg-main) 50%, 
    var(--bg-elevated) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: 4px;
}

.skeleton-text.short {
  width: 60%;
}

.skeleton-text.medium {
  width: 80%;
}

.skeleton-text.full {
  width: 100%;
}

/* Skeleton card */
.skeleton-card {
  background: var(--bg-elevated);
  border-radius: 12px;
  padding: 1.5rem;
  animation: skeleton-loading 1.5s infinite;
}