/* ===== HackersCorn - Animations ===== */

/* Grid Background Movement */
@keyframes grid-move {
  0% { background-position: 0 0, 0 0; }
  100% { background-position: 60px 60px, 60px 60px; }
}

/* Floating Orbs */
@keyframes float-orb {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(30px, -40px); }
  50% { transform: translate(-20px, 20px); }
  75% { transform: translate(40px, 10px); }
}

/* Typewriter Cursor Blink */
@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Pulse Glow */
@keyframes pulse-glow {
  0%, 100% { opacity: 1; text-shadow: 0 0 20px var(--accent-glow); }
  50% { opacity: 0.7; text-shadow: 0 0 40px var(--accent-glow); }
}

/* Pulse Dot */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

/* Fade In */
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Fade In Up */
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Fade In Down */
@keyframes fade-in-down {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Fade In Left */
@keyframes fade-in-left {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Fade In Right */
@keyframes fade-in-right {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Bounce Down (scroll indicator) */
@keyframes bounce-down {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(10px); }
}

/* Spin (loading spinner) */
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Toast Animations */
@keyframes toast-in {
  from { opacity: 0; transform: translateX(100px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100px); }
}

/* Testimonial Slide */
@keyframes slide-testimonials {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Scale In */
@keyframes scale-in {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

/* Page Load Transition */
.page-transition {
  opacity: 0;
  animation: page-enter 0.6s ease forwards;
}
@keyframes page-enter {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Scroll Reveal Classes */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.revealed {
  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; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* Card Hover Glow */
.glow-hover {
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.glow-hover:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 48px rgba(255, 69, 0, 0.12);
  border-color: rgba(255, 69, 0, 0.3);
}

/* Button Sweep Effect */
.sweep-effect {
  position: relative;
  overflow: hidden;
}
.sweep-effect::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
  transition: left 0.5s ease;
}
.sweep-effect:hover::after {
  left: 100%;
}

/* Shimmer Loading */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.shimmer {
  background: linear-gradient(90deg, var(--card-bg) 25%, rgba(255,255,255,0.05) 50%, var(--card-bg) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* Counter Number Animation */
.counter-animate {
  display: inline-block;
}

/* Smooth Filter Transition for Search */
.course-card.filter-hidden {
  opacity: 0;
  transform: scale(0.8);
  position: absolute;
  pointer-events: none;
}
.course-card.filter-visible {
  opacity: 1;
  transform: scale(1);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Navbar Fade In */
@keyframes navbar-fade {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
.navbar { animation: navbar-fade 0.6s ease; }

/* Gradient Text Animation */
@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.gradient-text {
  background: linear-gradient(135deg, var(--primary), #ff7849, var(--primary));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 3s ease infinite;
}

/* Ripple on Click */
@keyframes ripple {
  to { transform: scale(4); opacity: 0; }
}

/* Glow Border Pulse */
@keyframes glow-border {
  0%, 100% { box-shadow: 0 0 20px rgba(255,69,0,0.1); }
  50% { box-shadow: 0 0 40px rgba(255,69,0,0.25); }
}
.glow-border-pulse {
  animation: glow-border 3s ease-in-out infinite;
}

/* Stagger Children */
.stagger-children > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.2s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.3s; }
.stagger-children > *:nth-child(7) { animation-delay: 0.35s; }
.stagger-children > *:nth-child(8) { animation-delay: 0.4s; }
.stagger-children > *:nth-child(9) { animation-delay: 0.45s; }