/* ======================
   aimark.jp Animations
   ====================== */

/* Keyframe Definitions */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

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

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

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

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

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes cursor-blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

@keyframes gradient-shift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

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

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

.scroll-animate.delay-1 { transition-delay: 0.1s; }
.scroll-animate.delay-2 { transition-delay: 0.2s; }
.scroll-animate.delay-3 { transition-delay: 0.3s; }
.scroll-animate.delay-4 { transition-delay: 0.4s; }
.scroll-animate.delay-5 { transition-delay: 0.5s; }

/* Variant animations */
.scroll-animate.fade-left {
  transform: translateX(-30px);
}
.scroll-animate.fade-left.visible {
  transform: translateX(0);
}

.scroll-animate.fade-right {
  transform: translateX(30px);
}
.scroll-animate.fade-right.visible {
  transform: translateX(0);
}

.scroll-animate.scale {
  transform: scale(0.9);
}
.scroll-animate.scale.visible {
  transform: scale(1);
}

/* Button Hover Effects */
.btn-hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.btn-hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-hover-lift:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

/* Card Hover Effects */
.card-hover {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* Link Underline Animation */
.link-underline {
  position: relative;
  text-decoration: none;
}

.link-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-base);
}

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

/* Staggered Animation for Lists */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
}

.stagger-children.visible > *:nth-child(1) { animation: fadeInUp 0.5s ease 0.1s forwards; }
.stagger-children.visible > *:nth-child(2) { animation: fadeInUp 0.5s ease 0.2s forwards; }
.stagger-children.visible > *:nth-child(3) { animation: fadeInUp 0.5s ease 0.3s forwards; }
.stagger-children.visible > *:nth-child(4) { animation: fadeInUp 0.5s ease 0.4s forwards; }
.stagger-children.visible > *:nth-child(5) { animation: fadeInUp 0.5s ease 0.5s forwards; }
.stagger-children.visible > *:nth-child(6) { animation: fadeInUp 0.5s ease 0.6s forwards; }

/* Terminal Cursor */
.terminal-cursor {
  display: inline-block;
  width: 10px;
  height: 1.2em;
  background: var(--primary);
  margin-left: 2px;
  animation: cursor-blink 1s step-end infinite;
}

/* Gradient Text Animation */
.gradient-text-animate {
  background: linear-gradient(
    90deg,
    var(--primary),
    var(--primary-light),
    var(--accent-gold),
    var(--primary)
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient-shift 4s ease infinite;
}

/* Parallax Helper */
.parallax-bg {
  transform: translateZ(0);
  will-change: transform;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .scroll-animate {
    opacity: 1;
    transform: none;
  }
}