/* Yuva Portfolio - Animation Styles */

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes underlineExpand {
  from {
    transform: scaleX(0);
    transform-origin: left;
  }
  to {
    transform: scaleX(1);
    transform-origin: left;
  }
}

/* Animation Classes */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Staggered text animation */
.stagger-text span {
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
}

.stagger-text.animate span {
  animation: fadeInUp 0.6s ease forwards;
}

.stagger-text.animate span:nth-child(1) { animation-delay: 0s; }
.stagger-text.animate span:nth-child(2) { animation-delay: 0.1s; }
.stagger-text.animate span:nth-child(3) { animation-delay: 0.2s; }
.stagger-text.animate span:nth-child(4) { animation-delay: 0.3s; }
.stagger-text.animate span:nth-child(5) { animation-delay: 0.4s; }
.stagger-text.animate span:nth-child(6) { animation-delay: 0.5s; }
.stagger-text.animate span:nth-child(7) { animation-delay: 0.6s; }
.stagger-text.animate span:nth-child(8) { animation-delay: 0.7s; }

/* Footer CTA animation */
.footer-cta-animate span {
  display: inline-block;
  opacity: 0;
}

.footer-cta-animate.animate span {
  animation: fadeInUp 0.5s ease forwards;
}

.footer-cta-animate.animate span:nth-child(1) { animation-delay: 0s; }
.footer-cta-animate.animate span:nth-child(2) { animation-delay: 0.15s; }
.footer-cta-animate.animate span:nth-child(3) { animation-delay: 0.3s; }
.footer-cta-animate.animate span:nth-child(4) { animation-delay: 0.45s; }
.footer-cta-animate.animate span:nth-child(5) { animation-delay: 0.6s; }
.footer-cta-animate.animate span:nth-child(6) { animation-delay: 0.75s; }

/* Hover effects */
.hover-lift {
  transition: transform var(--transition-medium);
}

.hover-lift:hover {
  transform: translateY(-5px);
}

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

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

/* Link underline animation */
.link-underline {
  position: relative;
}

.link-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.link-underline:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Popup image animations */
.popup-image {
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.popup-image.entering {
  opacity: 0;
  transform: scale(0.85) translateY(10px);
}

.popup-image.visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.popup-image.stacked {
  opacity: 0.5;
  transform: scale(0.95);
}

.popup-image.leaving {
  opacity: 0;
  transform: scale(0.9);
}

/* Project card animations */
.project-card {
  overflow: hidden;
}

.project-card__image {
  transition: transform 0.5s ease;
}

.project-card:hover .project-card__image {
  transform: scale(1.08);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 38, 248, 0.8), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover .project-card__overlay {
  opacity: 1;
}

/* Nav link animations */
.nav__link {
  position: relative;
  /*overflow: hidden;*/
}

.nav__link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: transparent;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.nav__link:hover::before {
  transform: translateX(0);
}

/* Button icon animation */
/* Icon button animations removed - no hover animations */
.icon-btn {
  overflow: hidden;
  position: relative;
}

.icon-btn span {
  position: relative;
  z-index: 1;
}

/* ===== Project Card Hover Animation ===== */
/* Instant white background overlay with color invert */

.project-card {
  overflow: hidden;
  position: relative;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--color-white);
  opacity: 0;
  transition: none;
  z-index: 0;
}

.project-card:hover::before {
  opacity: 1;
}

.project-card__content {
  position: relative;
  z-index: 1;
}

.project-card__number,
.project-card__name,
.project-card__arrow {
  transition: none;
}

.project-card:hover .project-card__number,
.project-card:hover .project-card__name,
.project-card:hover .project-card__arrow {
  color: var(--color-primary);
}

.project-card__border {
  z-index: 2;
  transition: none;
}

.project-card:hover .project-card__border {
  border-color: var(--color-primary);
}

/* Corner bracket hover animations removed */

/* ===== Image Cycling Animation - Bein Lebein ===== */
.bein-lebein-posts .gallery-item {
  position: relative;
  overflow: hidden;
}

.bein-lebein-posts .gallery-item img {
  transition: opacity 0.4s ease;
}

.bein-lebein-posts .gallery-item img.image-cycle--fading {
  opacity: 0;
}

/* ===== Hero Arrow Floating Animation ===== */
@keyframes arrowFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.hero__arrow svg {
  animation: arrowFloat 2s ease-in-out infinite;
}