/* ============================================================
   PRO MEDIA SIGNS — Animations Stylesheet
   ============================================================ */

/* ---------- Keyframe Animations ---------- */

/* Stamp press \u2014 squash down then snap back */
@keyframes stampPress {
  0%   { transform: scale(1); }
  25%  { transform: scale(0.82, 0.88); }
  55%  { transform: scale(1.12, 1.08); }
  75%  { transform: scale(0.96, 1.02); }
  100% { transform: scale(1); }
}

/* Ripple ring expanding outward from step number */
@keyframes stampRipple {
  0%   { transform: scale(1);    opacity: 0.5; }
  100% { transform: scale(1.85); opacity: 0; }
}

/* Scan sweep \u2014 product card hover line */
@keyframes cardScan {
  0%   { top: -4px;   opacity: 1; }
  100% { top: calc(100% + 4px); opacity: 0; }
}

/* Icon micro-rotation on card hover */
@keyframes iconSpin {
  0%   { transform: rotate(0deg) scale(1); }
  40%  { transform: rotate(-15deg) scale(0.92); }
  100% { transform: rotate(0deg) scale(1); }
}

/* Shimmer effect for gradient text */
@keyframes shimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Floating animation */
@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* Scroll wheel indicator */
@keyframes scrollWheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.5; transform: translateX(-50%) translateY(8px); }
  100% { opacity: 0; transform: translateX(-50%) translateY(16px); }
}

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

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

/* Pulse glow */
@keyframes pulseGlow {
  0%, 100% { 
    box-shadow: 0 0 20px rgba(255,255,255,0.06); 
  }
  50% { 
    box-shadow: 0 0 40px rgba(255,255,255,0.1), 0 0 60px rgba(255,255,255,0.04); 
  }
}

/* Particle float */
@keyframes particleFloat {
  0% {
    transform: translateY(100vh) translateX(0) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 0.8;
  }
  100% {
    transform: translateY(-10vh) translateX(var(--drift, 50px)) scale(1);
    opacity: 0;
  }
}

/* Gradient shift for backgrounds */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Bounce subtle */
@keyframes bounceSubtle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* Wiggle */
@keyframes wiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-3deg); }
  75% { transform: rotate(3deg); }
}

/* Scale pulse */
@keyframes scalePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

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

/* ---------- Scroll Animation Classes ---------- */

/* Base state for animated elements */
.animate-on-scroll {
  opacity: 0;
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  will-change: opacity, transform;
}

/* Fade In Up */
.animate-on-scroll[data-animation="fadeInUp"] {
  transform: translateY(40px);
}
.animate-on-scroll[data-animation="fadeInUp"].visible {
  opacity: 1;
  transform: translateY(0);
}

/* Fade In Down */
.animate-on-scroll[data-animation="fadeInDown"] {
  transform: translateY(-40px);
}
.animate-on-scroll[data-animation="fadeInDown"].visible {
  opacity: 1;
  transform: translateY(0);
}

/* Fade In Left */
.animate-on-scroll[data-animation="fadeInLeft"] {
  transform: translateX(-40px);
}
.animate-on-scroll[data-animation="fadeInLeft"].visible {
  opacity: 1;
  transform: translateX(0);
}

/* Fade In Right */
.animate-on-scroll[data-animation="fadeInRight"] {
  transform: translateX(40px);
}
.animate-on-scroll[data-animation="fadeInRight"].visible {
  opacity: 1;
  transform: translateX(0);
}

/* Zoom In */
.animate-on-scroll[data-animation="zoomIn"] {
  transform: scale(0.85);
}
.animate-on-scroll[data-animation="zoomIn"].visible {
  opacity: 1;
  transform: scale(1);
}

/* Scale Up */
.animate-on-scroll[data-animation="scaleUp"] {
  transform: scale(0.9);
}
.animate-on-scroll[data-animation="scaleUp"].visible {
  opacity: 1;
  transform: scale(1);
}

/* ---------- Particle Styles ---------- */
.particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: particleFloat linear infinite;
}

.particle--small {
  width: 4px;
  height: 4px;
  background: rgba(255,255,255,0.3);
}

.particle--medium {
  width: 6px;
  height: 6px;
  background: rgba(255,255,255,0.2);
}

.particle--large {
  width: 10px;
  height: 10px;
  background: rgba(255,255,255,0.15);
}

/* ---------- Hover Micro-Interactions ---------- */

/* Card tilt effect (applied via JS) */
.tilt-card {
  transform-style: preserve-3d;
  perspective: 1000px;
}

/* Magnetic button effect */
.magnetic-btn {
  transition: transform 0.2s var(--ease-out);
}

/* Ripple effect container */
.ripple-container {
  position: relative;
  overflow: hidden;
}

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  transform: scale(0);
  animation: rippleEffect 0.6s ease-out;
  pointer-events: none;
}

@keyframes rippleEffect {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ---------- Loading States ---------- */
.skeleton {
  background: linear-gradient(90deg, 
    var(--color-gray-200) 25%, 
    var(--color-gray-100) 50%, 
    var(--color-gray-200) 75%
  );
  background-size: 200% 100%;
  animation: skeletonLoading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

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

/* ---------- Stagger Delays ---------- */
.animate-on-scroll[data-delay="100"] { transition-delay: 100ms; }
.animate-on-scroll[data-delay="200"] { transition-delay: 200ms; }
.animate-on-scroll[data-delay="300"] { transition-delay: 300ms; }
.animate-on-scroll[data-delay="400"] { transition-delay: 400ms; }
.animate-on-scroll[data-delay="500"] { transition-delay: 500ms; }
.animate-on-scroll[data-delay="600"] { transition-delay: 600ms; }

/* ---------- Nav link underline animation ---------- */
@media (min-width: 769px) {
  .nav-link:not(.nav-link--etsy)::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 1px;
    background: rgba(255,255,255,0.5);
    border-radius: 0;
    transition: width 0.3s var(--ease-out), left 0.3s var(--ease-out);
  }
  .nav-link:not(.nav-link--etsy):hover::after,
  .nav-link:not(.nav-link--etsy).active::after {
    width: calc(100% - 2rem);
    left: 1rem;
  }
}

/* ---------- Mobile Menu Overlay ---------- */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: calc(var(--z-sticky) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ---------- Prefers reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .particle {
    display: none !important;
  }
}