/* ==========================================================================
   Animations & Keyframes
   ========================================================================== */

/* ==========================================================================
   Loading Animation
   ========================================================================== */

.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-page-transition);
  opacity: 1;
  visibility: visible;
  transition: opacity var(--transition-slow),
              visibility var(--transition-slow);
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-screen__content {
  text-align: center;
}

.loading-screen__spinner {
  width: 50px;
  height: 50px;
  margin: 0 auto var(--space-md);
  position: relative;
}

.loading-screen__spinner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-text-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-screen__text {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-muted);
  animation: pulse 2s ease-in-out infinite;
}

.loading-screen__counter {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Page Transition
   ========================================================================== */

.page-transition {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-text-primary);
  z-index: var(--z-page-transition);
  pointer-events: none;
  transform: translateY(-100%);
}

.page-transition.active {
  animation: pageTransition 1s var(--ease-smooth);
}

@keyframes pageTransition {
  0% {
    transform: translateY(-100%);
  }
  50% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(100%);
  }
}

/* ==========================================================================
   Cursor Custom
   ========================================================================== */

.cursor {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-text-primary);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: var(--z-cursor);
  transition: transform 0.2s ease, border-color 0.2s ease;
  mix-blend-mode: difference;
  display: none; /* Hidden on mobile by default */
}

.cursor__dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-text-primary);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: transform 0.2s ease;
}

.cursor.active {
  transform: scale(1.5);
  border-color: var(--color-accent);
}

.cursor.active .cursor__dot {
  transform: translate(-50%, -50%) scale(0);
}

/* ==========================================================================
   Scroll Progress Bar
   ========================================================================== */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--color-text-primary);
  z-index: calc(var(--z-fixed) + 1);
  transition: width 0.1s ease-out;
}

/* ==========================================================================
   Keyframe Animations
   ========================================================================== */

/* 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);
  }
}

/* Fade In Left */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Fade In Right */
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

/* Spin */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Pulse */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

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

/* Float */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Slide In Right */
@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

/* Slide Out Right */
@keyframes slideOutRight {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(100%);
  }
}

/* Slide In Left */
@keyframes slideInLeft {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

/* Slide Out Left */
@keyframes slideOutLeft {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-100%);
  }
}

/* ==========================================================================
   Parallax Effect Classes
   ========================================================================== */

.parallax-slow {
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.parallax-medium {
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.parallax-fast {
  transition: transform 0.1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ==========================================================================
   Text Animation Classes
   ========================================================================== */

.text-reveal {
  overflow: hidden;
  position: relative;
}

.text-reveal span {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.6s var(--ease-smooth),
              transform 0.6s var(--ease-smooth);
}

.text-reveal.visible span {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animation for words */
.text-reveal.visible span:nth-child(1) { transition-delay: 0.05s; }
.text-reveal.visible span:nth-child(2) { transition-delay: 0.1s; }
.text-reveal.visible span:nth-child(3) { transition-delay: 0.15s; }
.text-reveal.visible span:nth-child(4) { transition-delay: 0.2s; }
.text-reveal.visible span:nth-child(5) { transition-delay: 0.25s; }
.text-reveal.visible span:nth-child(6) { transition-delay: 0.3s; }
.text-reveal.visible span:nth-child(7) { transition-delay: 0.35s; }
.text-reveal.visible span:nth-child(8) { transition-delay: 0.4s; }

/* ==========================================================================
   Hover Effects
   ========================================================================== */

/* Magnetic Button Effect */
.magnetic {
  transition: transform 0.2s ease;
}

.magnetic.active {
  transform: translate(var(--x), var(--y));
}

/* Image Scale on Hover */
.img-scale-hover {
  overflow: hidden;
}

.img-scale-hover img {
  transition: transform var(--transition-slower);
}

.img-scale-hover:hover img {
  transform: scale(1.1);
}

/* Underline Effect */
.underline-effect {
  position: relative;
}

.underline-effect::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: currentColor;
  transition: width var(--transition-normal);
}

.underline-effect:hover::after {
  width: 100%;
}

/* ==========================================================================
   Image Reveal Animations
   ========================================================================== */

.image-reveal {
  position: relative;
  overflow: hidden;
}

.image-reveal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-bg-primary);
  z-index: 1;
  transform: translateX(-100%);
}

.image-reveal.animate::before {
  animation: imageRevealSlide 1.2s var(--ease-smooth);
}

.image-reveal img {
  opacity: 0;
  transform: scale(1.2);
}

.image-reveal.animate img {
  animation: imageRevealContent 1.2s var(--ease-smooth) 0.2s forwards;
}

@keyframes imageRevealSlide {
  0% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(100%);
  }
}

@keyframes imageRevealContent {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ==========================================================================
   Scroll Animations - Applied via JS
   ========================================================================== */

.scroll-fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-smooth),
              transform 0.8s var(--ease-smooth);
}

.scroll-fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-fade-down {
  opacity: 0;
  transform: translateY(-40px);
  transition: opacity 0.8s var(--ease-smooth),
              transform 0.8s var(--ease-smooth);
}

.scroll-fade-down.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-fade-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s var(--ease-smooth),
              transform 0.8s var(--ease-smooth);
}

.scroll-fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.scroll-fade-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s var(--ease-smooth),
              transform 0.8s var(--ease-smooth);
}

.scroll-fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scroll-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s var(--ease-smooth),
              transform 0.8s var(--ease-smooth);
}

.scroll-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays for multiple elements */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }