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

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

@keyframes reveal {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes revealImage {
  0% {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes slideInLeft {
  0% {
    opacity: 0;
    transform: translateX(-50px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  0% {
    opacity: 0;
    transform: translateX(50px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes scaleUp {
  0% {
    transform: scale(0.9);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

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

.reveal-content {
  opacity: 0;
  transform: translateY(30px);
}

.reveal-content.revealed {
  animation: reveal 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.reveal-image {
  opacity: 0;
  transform: translateY(30px) scale(0.95);
}

.reveal-image.revealed {
  animation: revealImage 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.fade-in {
  opacity: 0;
}

.fade-in.revealed {
  animation: fadeIn 1s ease forwards;
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
}

.slide-in-left.revealed {
  animation: slideInLeft 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
}

.slide-in-right.revealed {
  animation: slideInRight 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.scale-up {
  opacity: 0;
  transform: scale(0.9);
}

.scale-up.revealed {
  animation: scaleUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.page-transition {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-bg-primary);
  z-index: 9999;
  transform: translateY(100%);
}

.page-transition.active {
  animation: pageTransition 1.5s cubic-bezier(0.77, 0, 0.175, 1) forwards;
}

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

.entry-animation .logo,
.entry-animation .nav-link,
.entry-animation #theme-toggle,
.entry-animation .menu-toggle {
  opacity: 0;
  transform: translateY(20px);
}

.entry-animation .logo.revealed,
.entry-animation .nav-link.revealed,
.entry-animation #theme-toggle.revealed,
.entry-animation .menu-toggle.revealed {
  animation: reveal 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.entry-animation .nav-link:nth-child(1) {
  animation-delay: 0.1s;
}

.entry-animation .nav-link:nth-child(2) {
  animation-delay: 0.2s;
}

.entry-animation .nav-link:nth-child(3) {
  animation-delay: 0.3s;
}

.entry-animation .nav-link:nth-child(4) {
  animation-delay: 0.4s;
}

.entry-animation .nav-link:nth-child(5) {
  animation-delay: 0.5s;
}

.entry-animation #theme-toggle {
  animation-delay: 0.6s;
}

.entry-animation .menu-toggle {
  animation-delay: 0.6s;
}

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

.project-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

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

.button {
  position: relative;
  overflow: hidden;
}

.button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 0;
  border-radius: 100%;
  transform: scale(1, 1) translate(-50%);
  transform-origin: 50% 50%;
}

.button:hover::after {
  animation: ripple 1s ease-out;
}

@keyframes ripple {
  0% {
    transform: scale(0, 0);
    opacity: 0.5;
  }
  100% {
    transform: scale(30, 30);
    opacity: 0;
  }
}

.skill-progress {
  width: 0;
}

.skills-category.revealed .skill-progress {
  animation: increaseWidth 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes increaseWidth {
  0% {
    width: 0;
  }
  100% {
    width: var(--progress-width);
  }
}

.tool-item {
  position: relative;
  overflow: hidden;
}

.tool-item::before {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.2), transparent);
  transform: skewY(10deg);
  transition: transform 0.5s ease;
}

.tool-item:hover::before {
  transform: skewY(10deg) translateY(200%);
}

.form-group input,
.form-group textarea {
  position: relative;
  z-index: 1;
}

.form-group::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-primary-500);
  transition: width 0.3s ease, left 0.3s ease;
  z-index: 0;
}

.form-group:focus-within::after {
  width: 100%;
  left: 0;
}

.scroll-indicator svg {
  animation: arrowDown 2s infinite;
}

@keyframes arrowDown {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(10px);
  }
  60% {
    transform: translateY(5px);
  }
}