/* ========================================
   Animations — Scroll Reveal, Orbs, Parallax
   TermiTec Product Website
   ======================================== */

/* === Scroll Reveal Base === */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

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

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

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

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

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

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

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

/* Blur Reveal — elements fade in from blurred state */
.reveal--blur {
  opacity: 0;
  filter: blur(12px);
  transform: translateY(20px);
  transition: opacity 1s var(--ease-out-expo),
              filter 1s var(--ease-out-expo),
              transform 1s var(--ease-out-expo);
}

.reveal--blur.reveal--visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

/* Stagger delays for grid items */
.reveal--stagger:nth-child(1) { transition-delay: 0ms; }
.reveal--stagger:nth-child(2) { transition-delay: 120ms; }
.reveal--stagger:nth-child(3) { transition-delay: 240ms; }
.reveal--stagger:nth-child(4) { transition-delay: 360ms; }
.reveal--stagger:nth-child(5) { transition-delay: 480ms; }
.reveal--stagger:nth-child(6) { transition-delay: 600ms; }

/* === Hero Animations === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

.hero__title {
  animation: fadeInUp 1.2s var(--ease-out-expo) 0.2s both;
}

.hero__subtitle {
  animation: fadeInUp 1.2s var(--ease-out-expo) 0.5s both;
}

.hero__cta {
  animation: fadeInUp 1.2s var(--ease-out-expo) 0.8s both;
}

/* Scroll Down Indicator */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0) translateX(-50%);
  }
  40% {
    transform: translateY(-8px) translateX(-50%);
  }
  60% {
    transform: translateY(-4px) translateX(-50%);
  }
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  animation: bounce 2s infinite 2s, fadeIn 1s ease 1.5s both;
  cursor: pointer;
}

.scroll-indicator__text {
  font-size: var(--fs-label);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
}

.scroll-indicator__arrow {
  width: 24px;
  height: 24px;
  color: var(--text-secondary);
}

/* === Animated Gradient Orbs === */
@keyframes orbFloat1 {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -40px) scale(1.05);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.95);
  }
}

@keyframes orbFloat2 {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(-40px, 30px) scale(0.95);
  }
  66% {
    transform: translate(25px, -15px) scale(1.08);
  }
}

@keyframes orbFloat3 {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(20px, 35px) scale(1.03);
  }
  66% {
    transform: translate(-35px, -25px) scale(0.97);
  }
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  will-change: transform;
  contain: layout style;
}

.orb--blue {
  width: clamp(300px, 40vw, 600px);
  height: clamp(300px, 40vw, 600px);
  background: var(--orb-blue);
  animation: orbFloat1 12s var(--ease-in-out-smooth) infinite;
}

.orb--orange {
  width: clamp(250px, 35vw, 500px);
  height: clamp(250px, 35vw, 500px);
  background: var(--orb-orange);
  animation: orbFloat2 15s var(--ease-in-out-smooth) infinite;
}

.orb--purple {
  width: clamp(200px, 30vw, 450px);
  height: clamp(200px, 30vw, 450px);
  background: var(--orb-purple);
  animation: orbFloat3 18s var(--ease-in-out-smooth) infinite;
}

/* === Parallax === */
.parallax-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  will-change: transform;
  overflow: hidden;
}

/* === Text Shimmer for Hero === */
@keyframes textShimmer {
  0% {
    background-position: 0% center;
  }
  50% {
    background-position: 200% center;
  }
  100% {
    background-position: 0% center;
  }
}

/* === Glow Pulse for CTA === */
@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 20px var(--accent-orange-glow);
  }
  50% {
    box-shadow: 0 0 40px var(--accent-orange-glow-strong);
  }
}

.btn--glow {
  animation: glowPulse 3s ease-in-out infinite;
}

.btn--glow:hover {
  animation: none;
  box-shadow: 0 0 40px var(--accent-orange-glow-strong);
}

/* === Section Divider Line === */
.section-divider {
  width: 160px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-orange), var(--accent-primary), transparent);
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}

/* === Card Animated Gradient Border on Hover === */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--border-radius-lg);
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(74, 128, 204, 0.4),
    rgba(232, 114, 42, 0.3),
    rgba(120, 80, 200, 0.3),
    rgba(74, 128, 204, 0.4)
  );
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s var(--ease-out-cubic);
  pointer-events: none;
  z-index: 1;
}

.card:hover::before {
  opacity: 1;
}

/* === Footer Glow Effect === */
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 200px;
  background: radial-gradient(ellipse at center top, var(--footer-glow) 0%, transparent 70%);
  pointer-events: none;
}

/* === Counter Animation === */
@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === Image Placeholder Shimmer === */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.img-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--bg-elevated) 25%,
    var(--bg-card) 50%,
    var(--bg-elevated) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 2s ease-in-out infinite;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: var(--fs-small);
}

/* === Glass Border Shimmer === */
@keyframes glassBorderShimmer {
  0% {
    background-position: -200% 0;
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
  100% {
    background-position: 200% 0;
    opacity: 0.4;
  }
}

/* === Floating Particles === */
.particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  will-change: transform, opacity;
}

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) translateX(0) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-10vh) translateX(var(--drift, 40px)) scale(1);
    opacity: 0;
  }
}

/* === Pulse Glow — for interactive elements === */
@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 var(--accent-glow);
  }
  50% {
    box-shadow: 0 0 20px 4px var(--accent-glow);
  }
}

/* === Reveal with rotation === */
.reveal--rotate {
  opacity: 0;
  transform: translateY(20px) rotate(2deg);
  transition: opacity 1s var(--ease-out-expo),
              transform 1s var(--ease-out-expo);
}

.reveal--rotate.reveal--visible {
  opacity: 1;
  transform: translateY(0) rotate(0deg);
}

/* === Section title underline animation === */
.section__title {
  position: relative;
}

.section__title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-light), var(--accent-orange));
  transition: width 0.8s var(--ease-out-expo), left 0.8s var(--ease-out-expo);
}

.reveal--visible .section__title::after,
.section__header.reveal--visible .section__title::after {
  width: 60px;
  left: calc(50% - 30px);
}

/* === Card glass shimmer on hover === */
@keyframes cardGlassShimmer {
  0% {
    transform: translateX(-100%) skewX(-15deg);
  }
  100% {
    transform: translateX(200%) skewX(-15deg);
  }
}

.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.03),
    transparent
  );
  transform: translateX(-100%) skewX(-15deg);
  pointer-events: none;
  z-index: 2;
}

.card:hover::after {
  animation: cardGlassShimmer 0.8s ease forwards;
}

/* === Mobile: Smaller orbs === */
@media (max-width: 767px) {
  .orb {
    filter: blur(60px);
  }

  .orb--blue {
    width: 200px;
    height: 200px;
  }

  .orb--orange {
    width: 180px;
    height: 180px;
  }

  .orb--purple {
    width: 150px;
    height: 150px;
  }
}