/* ================================================
   EduVerse Tech Solutions — Animation Styles
   css/animations.css
   ================================================ */

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.85s cubic-bezier(0.23, 1, 0.32, 1), transform 0.85s cubic-bezier(0.23, 1, 0.32, 1);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== STAGGER CHILDREN ===== */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.stagger-children.active > * {
  opacity: 1;
  transform: translateY(0);
}
.stagger-children.active > *:nth-child(1) { transition-delay: 0s; }
.stagger-children.active > *:nth-child(2) { transition-delay: 0.08s; }
.stagger-children.active > *:nth-child(3) { transition-delay: 0.16s; }
.stagger-children.active > *:nth-child(4) { transition-delay: 0.24s; }
.stagger-children.active > *:nth-child(5) { transition-delay: 0.32s; }
.stagger-children.active > *:nth-child(6) { transition-delay: 0.40s; }

/* ===== 3D FLOAT ===== */
.floating-3d {
  animation: float3d 6s ease-in-out infinite;
  transform-style: preserve-3d;
}
@keyframes float3d {
  0%, 100% { transform: translateY(0) rotateX(0) rotateY(0); }
  25% { transform: translateY(-10px) rotateX(2deg) rotateY(-2deg); }
  50% { transform: translateY(-5px) rotateX(-1deg) rotateY(3deg); }
  75% { transform: translateY(-12px) rotateX(1deg) rotateY(-1deg); }
}

/* ===== SHINE EFFECT ===== */
.shine {
  position: relative;
  overflow: hidden;
}
.shine::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 50%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.6s ease;
}
.shine:hover::after {
  left: 100%;
}

/* ===== PULSE RING ===== */
.pulse-ring {
  position: relative;
}
.pulse-ring::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: inherit;
  border: 2px solid var(--primary);
  animation: pulseRing 2s ease-out infinite;
  opacity: 0;
}
@keyframes pulseRing {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.15); opacity: 0; }
}

/* ===== GLOW BORDER ===== */
.glow-border {
  position: relative;
}
.glow-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: var(--premium-gradient);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
  filter: blur(8px);
}
.glow-border:hover::before {
  opacity: 0.5;
}

/* ===== MAGNETIC HOVER ===== */
.magnetic {
  transition: transform 0.2s cubic-bezier(0.23, 1, 0.32, 1);
}

/* ===== TYPING CURSOR ===== */
.typing-cursor::after {
  content: '|';
  animation: blink 1s step-end infinite;
  color: var(--primary);
}
@keyframes blink {
  50% { opacity: 0; }
}

/* ===== GRADIENT TEXT ===== */
.gradient-text {
  background: var(--premium-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== GLASS MORPHISM ===== */
.glass {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
}

/* ===== SCROLL INDICATOR ===== */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: bounce 2s infinite;
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
}
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ===== COUNTER ANIMATION ===== */
.count-up {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* ===== SKELETON LOADING ===== */
.skeleton {
  background: linear-gradient(90deg, var(--field) 25%, var(--line) 50%, var(--field) 75%);
  background-size: 200% 100%;
  animation: skeleton 1.5s infinite;
  border-radius: var(--radius-md);
}
@keyframes skeleton {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== HOVER LIFT ===== */
.hover-lift {
  transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.3s ease;
}
.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

/* ===== ROTATE ON HOVER ===== */
.hover-rotate {
  transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}
.hover-rotate:hover {
  transform: rotate(5deg) scale(1.05);
}

/* ===== SCALE ON HOVER ===== */
.hover-scale {
  transition: transform 0.3s ease;
}
.hover-scale:hover {
  transform: scale(1.05);
}

/* ===== UNDERLINE ANIMATION ===== */
.underline-anim {
  position: relative;
}
.underline-anim::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--premium-gradient);
  transition: width 0.3s ease;
}
.underline-anim:hover::after {
  width: 100%;
}

/* ===== FADE IN LEFT/RIGHT ===== */
.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.7s cubic-bezier(0.23, 1, 0.32, 1);
}
.fade-in-left.active {
  opacity: 1;
  transform: translateX(0);
}
.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.7s cubic-bezier(0.23, 1, 0.32, 1);
}
.fade-in-right.active {
  opacity: 1;
  transform: translateX(0);
}

/* ===== CONFETTI PARTICLES ===== */
.confetti {
  position: absolute;
  width: 8px; height: 8px;
  border-radius: 2px;
  animation: confettiFall 3s ease-in infinite;
}
@keyframes confettiFall {
  0% { transform: translateY(-100%) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}