/* ========================================
   Animations - 原神介绍网站
   ======================================== */

/* Fade Up Animation */
.anim-fade-up {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Fade Left Animation */
.anim-fade-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Fade Right Animation */
.anim-fade-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Scale In Animation */
.anim-scale-in {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Delay Classes */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* Shimmer Animation for Hero Title */
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

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

/* Pulse Glow */
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(230, 180, 34, 0.2); }
  50% { box-shadow: 0 0 40px rgba(230, 180, 34, 0.4); }
}

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

/* Scroll Indicator Bounce */
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(8px); opacity: 0.5; }
}

/* Element Pulse */
@keyframes elementPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 20px var(--pulse-color, rgba(255,255,255,0.2)); }
  50% { transform: scale(1.05); box-shadow: 0 0 40px var(--pulse-color, rgba(255,255,255,0.4)); }
}

/* Gradient Shift */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

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

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

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

/* Star twinkle */
@keyframes twinkle {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* 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-behavior: auto !important;
  }

  .anim-fade-up,
  .anim-fade-left,
  .anim-fade-right,
  .anim-scale-in {
    opacity: 1;
    transform: none;
  }

  .cursor-glow {
    display: none;
  }
}