/* ============================================================
   FRENZA — Animations
   Keyframes, transitions, and animation utilities
   ============================================================ */

/* ============================================================
   KEYFRAMES
   ============================================================ */

/* --- Fade --- */
@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(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Scale --- */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* --- Slide --- */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

@keyframes shimmer {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

@keyframes pulse {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes ripple {
  from {
    transform: scale(0);
    opacity: 0.6;
  }
  to {
    transform: scale(4);
    opacity: 0;
  }
}

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

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.95);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

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

/* ============================================================
   SCROLL REVEAL UTILITY CLASSES
   Elements start hidden, become visible when .visible is added
   ============================================================ */
.fade-in {
  opacity: 0;
}

.fade-in.visible {
  animation: fadeIn 0.6s ease forwards;
}

.slide-up {
  opacity: 0;
  transform: translateY(30px);
}

.slide-up.visible {
  animation: fadeInUp 0.6s ease forwards;
}

.scale-in {
  opacity: 0;
  transform: scale(0.95);
}

.scale-in.visible {
  animation: scaleIn 0.5s ease forwards;
}

.slide-right {
  opacity: 0;
  transform: translateX(30px);
}

.slide-right.visible {
  animation: slideInRight 0.6s ease forwards;
}

.slide-left {
  opacity: 0;
  transform: translateX(-30px);
}

.slide-left.visible {
  animation: slideInLeft 0.6s ease forwards;
}

/* ============================================================
   STAGGER DELAYS
   Add to elements in a group for cascading reveal effect
   ============================================================ */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* ============================================================
   CONTINUOUS ANIMATION UTILITIES
   ============================================================ */
.float {
  animation: float 6s infinite ease-in-out;
}

.pulse {
  animation: pulse 2s infinite;
}

.bounce-in {
  animation: bounceIn 0.6s ease forwards;
}

/* ============================================================
   HERO BACKGROUND ANIMATION
   ============================================================ */
.hero-animated {
  background-size: 200% 200%;
  animation: gradientShift 15s ease infinite;
}

/* ============================================================
   INTERACTIVE HOVER EFFECTS
   ============================================================ */
.card-hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

/* --- Glow on hover --- */
.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow);
}

/* --- Subtle scale on hover --- */
.hover-scale {
  transition: transform var(--transition-base);
}

.hover-scale:hover {
  transform: scale(1.02);
}

/* --- Gradient border shimmer on hover --- */
.hover-border-gradient {
  position: relative;
  overflow: hidden;
}

.hover-border-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient-primary);
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.hover-border-gradient:hover::before {
  opacity: 1;
}

/* ============================================================
   PAGE TRANSITION
   ============================================================ */
.page-enter {
  animation: fadeIn 0.3s ease forwards;
}

.page-exit {
  animation: fadeIn 0.2s ease reverse forwards;
}

/* ============================================================
   TOAST ANIMATIONS
   ============================================================ */
.toast-enter {
  animation: slideInRight 0.3s ease forwards;
}

.toast-exit {
  animation: slideOutRight 0.3s ease forwards;
}

/* ============================================================
   REDUCED MOTION
   Respect user preference for 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;
  }

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

  .float,
  .pulse,
  .hero-animated {
    animation: none;
  }
}