/* ============================================
   SCROLL-TRIGGERED ANIMATION CLASSES
   Elements start hidden and animate in via JS
   ============================================ */

/* Base hidden state for all animated elements */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Direction variants */
.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays for child elements */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ============================================
   KEYFRAME ANIMATIONS
   ============================================ */

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

.animate-float {
  animation: float 6s ease-in-out infinite;
}

/* Pulse glow for CTA */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px var(--color-accent-glow); }
  50% { box-shadow: 0 0 40px var(--color-accent-glow), 0 0 60px rgba(0, 229, 200, 0.15); }
}

.animate-pulse-glow {
  animation: pulse-glow 3s ease-in-out infinite;
}

/* Rotate for decorative elements */
@keyframes rotate-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-rotate {
  animation: rotate-slow 30s linear infinite;
}

/* Gradient shift */
@keyframes gradient-shift {
  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; }
}

.animate-fade-in {
  animation: fadeIn 1s ease forwards;
}

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

.animate-slide-up {
  animation: slideUp 0.8s ease forwards;
}

/* Line draw for underlines */
@keyframes line-draw {
  from { width: 0; }
  to { width: 100%; }
}

/* Counter tick animation */
@keyframes countUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Shimmer loading effect */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 25%,
    var(--color-bg-tertiary) 50%,
    var(--color-bg-secondary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

/* ============================================
   PARALLAX
   ============================================ */
.parallax-container {
  position: relative;
  overflow: hidden;
}

.parallax-bg {
  position: absolute;
  inset: -20% 0;
  background-size: cover;
  background-position: center;
  will-change: transform;
  z-index: -1;
}

/* ============================================
   CONCENTRIC CIRCLE MOTIF
   ============================================ */
.circle-motif {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--color-border-accent);
  opacity: 0.15;
  pointer-events: none;
}

.circle-motif--lg {
  width: 600px;
  height: 600px;
}

.circle-motif--md {
  width: 400px;
  height: 400px;
}

.circle-motif--sm {
  width: 200px;
  height: 200px;
}

/* ============================================
   PAGE TRANSITION
   ============================================ */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--color-bg-primary);
  z-index: var(--z-overlay);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.page-transition.active {
  opacity: 1;
  pointer-events: all;
}

/* ============================================
   CURSOR GLOW (subtle mouse follower)
   ============================================ */
.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent-glow), transparent 70%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
  transform: translate(-50%, -50%);
  will-change: left, top;
  transition: opacity var(--transition-slow);
}