/* ==========================================================================
   MK Dental & Orthodontics - Animation Classes
   Used with GSAP ScrollTrigger for scroll-based reveal animations
   ========================================================================== */

/* ── Base Animation States (Before Reveal) ─────────────────────────────── */

.animate-on-scroll {
  opacity: 0;
  visibility: hidden;
  transition: none;
}

.fade-in {
  opacity: 0;
}

.fade-up {
  opacity: 0;
  transform: translateY(40px);
}

.fade-down {
  opacity: 0;
  transform: translateY(-40px);
}

.fade-left {
  opacity: 0;
  transform: translateX(-40px);
}

.fade-right {
  opacity: 0;
  transform: translateX(40px);
}

.scale-in {
  opacity: 0;
  transform: scale(0.9);
}

.scale-up {
  opacity: 0;
  transform: scale(0.8);
}

/* ── Revealed States (After GSAP triggers) ─────────────────────────────── */

.animate-on-scroll.revealed {
  opacity: 1;
  visibility: visible;
  transform: none;
}

/* ── Stagger Animation Delays ──────────────────────────────────────────── */

.stagger-1 { transition-delay: 0ms; }
.stagger-2 { transition-delay: 100ms; }
.stagger-3 { transition-delay: 200ms; }
.stagger-4 { transition-delay: 300ms; }
.stagger-5 { transition-delay: 400ms; }
.stagger-6 { transition-delay: 500ms; }

/* ── Continuous Animations ─────────────────────────────────────────────── */

.float-animation {
  animation: float 3s ease-in-out infinite;
}

.float-animation-delayed {
  animation: float 3s ease-in-out infinite 1.5s;
}

.pulse-animation {
  animation: pulse 2s ease-in-out infinite;
}

.rotate-slow {
  animation: rotate-slow 20s linear infinite;
}

/* ── Image Reveal Animation ────────────────────────────────────────────── */

.image-reveal {
  position: relative;
  overflow: hidden;
}

.image-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-primary);
  transform: scaleX(1);
  transform-origin: right;
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.image-reveal.revealed::after {
  transform: scaleX(0);
}

/* ── Card Hover Lift ───────────────────────────────────────────────────── */

.hover-lift {
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

/* ── Text Shimmer Effect ───────────────────────────────────────────────── */

.text-shimmer {
  background: linear-gradient(
    120deg,
    var(--color-text-primary) 30%,
    var(--color-primary) 50%,
    var(--color-text-primary) 70%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 3s ease-in-out infinite;
}

/* ── Counter Animation ─────────────────────────────────────────────────── */

.counter-value {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* ── Progress Bar Animation ────────────────────────────────────────────── */

.progress-bar {
  height: 6px;
  background: var(--color-neutral-light);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-full);
  width: 0;
  transition: width 1.5s ease-out;
}

.progress-bar-fill.animated {
  width: var(--progress-width, 80%);
}

/* ── Keyframe Definitions ──────────────────────────────────────────────── */

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.05); opacity: 0.8; }
}

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

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

@keyframes slide-in-left {
  from { transform: translateX(-100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slide-in-right {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

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

@keyframes bounce-gentle {
  0%, 100% { transform: translateY(0); }
  25% { transform: translateY(-5px); }
  75% { transform: translateY(3px); }
}

@keyframes scale-bounce {
  0% { transform: scale(0); }
  60% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

@keyframes draw-line {
  from { stroke-dashoffset: 1000; }
  to { stroke-dashoffset: 0; }
}

/* ── 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;
  }

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

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