/* ═══════════════════════════════════════════════════════════════
   CLARITY — animations.css
   Keyframes · Fade-up · Scroll Animations · Skeleton Loaders
   Stagger Delays · Pulse Effects · Entrance Animations
   ═══════════════════════════════════════════════════════════════ */

/* ─── Base Reveal Setup ─── */
/* Elements with .reveal are hidden until IntersectionObserver fires */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}
.reveal-fade {
  opacity: 0;
  transition: opacity 0.9s ease;
}
.reveal-fade.visible {
  opacity: 1;
}

/* ─── Stagger Delays ─── */
/* Apply .stagger-[n] to siblings for cascading entrance */
.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; }
.stagger-7  { transition-delay: 0.7s; }
.stagger-8  { transition-delay: 0.8s; }

/* ─── Keyframes ─── */

/* Fade in upward */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Fade in downward */
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Simple fade */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Scale in from slightly smaller */
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.90); }
  to   { opacity: 1; transform: scale(1); }
}

/* Slide in from left */
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-60px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* Slide in from right */
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(60px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* Soft floating bounce for hero elements */
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

/* Pulse ring for CTAs */
@keyframes pulseRing {
  0%   { box-shadow: 0 0 0 0 rgba(77, 191, 160, 0.4); }
  70%  { box-shadow: 0 0 0 16px rgba(77, 191, 160, 0); }
  100% { box-shadow: 0 0 0 0 rgba(77, 191, 160, 0); }
}

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

/* Skeleton shimmer */
@keyframes shimmer {
  0%   { background-position: -800px 0; }
  100% { background-position: 800px 0; }
}

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

/* Progress bar fill */
@keyframes progressFill {
  from { width: 0%; }
  to   { width: var(--target-width, 80%); }
}

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

/* Scroll indicator bounce */
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50%       { transform: translateY(8px); opacity: 0.5; }
}

/* Number counter pop */
@keyframes countPop {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* Confetti drop */
@keyframes confettiFall {
  0%   { transform: translateY(-20px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

/* Tag marquee (horizontal scroll) */
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Ripple effect on click */
@keyframes ripple {
  0%   { transform: scale(0); opacity: 0.6; }
  100% { transform: scale(4); opacity: 0; }
}

/* Wave underline */
@keyframes waveUnderline {
  0%   { background-position: 0 0; }
  100% { background-position: 100% 0; }
}

/* ─── Animation Utility Classes ─── */

/* Applied directly as classes for instant use */
.anim-fade-up   { animation: fadeUp 0.7s ease forwards; }
.anim-fade-in   { animation: fadeIn 0.7s ease forwards; }
.anim-scale-in  { animation: scaleIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards; }
.anim-slide-left  { animation: slideInLeft 0.7s ease forwards; }
.anim-slide-right { animation: slideInRight 0.7s ease forwards; }
.anim-float     { animation: floatY 4s ease-in-out infinite; }
.anim-pulse     { animation: pulseRing 2s ease-out infinite; }
.anim-spin      { animation: spin 1s linear infinite; }
.anim-bounce    { animation: scrollBounce 1.5s ease-in-out infinite; }

/* Delay helpers for animation utility classes */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }
.delay-1000 { animation-delay: 1s; }

/* Fill mode helpers */
.fill-both    { animation-fill-mode: both; }
.fill-forward { animation-fill-mode: forwards; }

/* ─── Skeleton Loaders ─── */
.skeleton {
  background: linear-gradient(90deg, #e8f4f2 25%, #d0ece8 50%, #e8f4f2 75%);
  background-size: 800px 100%;
  animation: shimmer 1.6s ease-in-out infinite;
  border-radius: var(--radius);
}
.skeleton-text {
  height: 1em;
  border-radius: 4px;
  margin-bottom: 8px;
}
.skeleton-text:last-child { width: 60%; }
.skeleton-title {
  height: 2em;
  border-radius: 4px;
  margin-bottom: 12px;
}
.skeleton-img {
  aspect-ratio: 16/9;
  border-radius: var(--radius);
}
.skeleton-card {
  padding: 24px;
  background: var(--pure-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

/* ─── Scroll Indicator Arrow ─── */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: rgba(255,255,255,0.8);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}
.scroll-indicator i { animation: scrollBounce 1.5s ease-in-out infinite; }

/* ─── Particle Canvas ─── */
/* Background canvas for particle effect in hero */
#particleCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
}

/* ─── Floating Hero Badge ─── */
.hero-badge-float {
  animation: floatY 5s ease-in-out infinite;
}
.hero-badge-float-2 {
  animation: floatY 5s ease-in-out infinite;
  animation-delay: 1.5s;
}

/* ─── Pulse CTA Button Glow ─── */
.btn-pulse {
  animation: pulseRing 2.5s ease-out infinite;
}

/* ─── Tag Marquee Track ─── */
.marquee-track {
  display: flex;
  gap: 12px;
  width: max-content;
  animation: marquee 28s linear infinite;
}
.marquee-track:hover { animation-play-state: paused; }

.marquee-container {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

/* ─── Transition Group (for JS-managed transitions) ─── */
.t-enter {
  opacity: 0;
  transform: translateY(20px);
}
.t-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.t-leave-active {
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

/* ─── Hover Lift ─── */
.hover-lift {
  transition: transform var(--transition), box-shadow var(--transition);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* ─── Hover Scale ─── */
.hover-scale {
  transition: transform var(--transition);
}
.hover-scale:hover {
  transform: scale(1.03);
}

/* ─── Image Zoom on Hover ─── */
.img-zoom {
  overflow: hidden;
  border-radius: var(--radius);
}
.img-zoom img {
  transition: transform 0.6s ease;
}
.img-zoom:hover img {
  transform: scale(1.06);
}

/* ─── Underline Grow ─── */
.underline-grow {
  position: relative;
  display: inline-block;
}
.underline-grow::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--teal-mid);
  transition: width var(--transition);
}
.underline-grow:hover::after { width: 100%; }

/* ─── Spinner ─── */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--teal-pale);
  border-top-color: var(--teal-mid);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.spinner-sm { width: 18px; height: 18px; border-width: 2px; }

/* ─── Progress Bar ─── */
.progress-bar-track {
  background: var(--teal-pale);
  border-radius: var(--radius-full);
  height: 6px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--teal-mid), var(--teal-light));
  border-radius: var(--radius-full);
  animation: progressFill 1.2s ease-out forwards;
  animation-play-state: paused; /* played by JS on reveal */
}

/* ─── Ripple on Buttons ─── */
.ripple-host { position: relative; overflow: hidden; }
.ripple-host .ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  transform: scale(0);
  animation: ripple 0.6s linear;
  pointer-events: none;
}

/* ─── Confetti Particle ─── */
.confetti-piece {
  position: fixed;
  top: -20px;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  animation: confettiFall 3s ease-in forwards;
  pointer-events: none;
  z-index: var(--z-top);
}

/* ─── Page Transition Overlay ─── */
.page-overlay {
  position: fixed;
  inset: 0;
  background: var(--teal-deep);
  transform: scaleY(0);
  transform-origin: bottom;
  z-index: var(--z-top);
  pointer-events: none;
}

/* ─── Reduced Motion Override ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .reveal-left, .reveal-right, .reveal-scale, .reveal-fade {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .marquee-track { animation: none; }
}