/* ============================================
   DENSIA IMPEX SRL — Animations & Effects
   ============================================ */

/* Grain overlay */
.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: var(--z-grain);
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

/* Scroll progress bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-blue));
  z-index: calc(var(--z-navbar) + 1);
  width: 0%;
  transition: width 0.1s linear;
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  z-index: var(--z-back-to-top);
  width: 48px;
  height: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration-normal) var(--transition-smooth);
  backdrop-filter: blur(10px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-3px);
}

/* Floating WhatsApp */
.float-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: var(--z-float-btn);
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.8rem;
  box-shadow: var(--shadow-whatsapp);
  transition: transform var(--duration-fast);
  animation: bounce-in 1s var(--transition-smooth) both;
}

.float-whatsapp:hover {
  transform: scale(1.1) translateY(-3px);
}

@keyframes bounce-in {
  0% { transform: scale(0) translateY(20px); opacity: 0; }
  60% { transform: scale(1.1) translateY(-5px); opacity: 1; }
  100% { transform: scale(1) translateY(0); }
}

/* Scroll reveal animations */
.js .reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--duration-normal) var(--transition-smooth),
              transform var(--duration-normal) var(--transition-smooth);
}

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

.js .reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity var(--duration-normal) var(--transition-smooth),
              transform var(--duration-normal) var(--transition-smooth);
}

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

.js .reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity var(--duration-normal) var(--transition-smooth),
              transform var(--duration-normal) var(--transition-smooth);
}

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

.js .reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity var(--duration-normal) var(--transition-smooth),
              transform var(--duration-normal) var(--transition-smooth);
}

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

/* Stagger delays */
.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; }

/* Pulse animations */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
}

/* Shimmer effect for loading */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 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;
  }
  .js .reveal, .js .reveal-left, .js .reveal-right, .js .reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Mobile CTA bar: WhatsApp / Quote (replaces the badge and floating bubble on phones; no call button) */
.mobile-cta-bar { display: none; }
@media (max-width: 768px) {
  .mobile-cta-bar {
    display: grid;
    grid-template-columns: 1fr 1.25fr;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-mobile-bar);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-glass);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .mobile-cta-bar a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.2rem;
    min-height: 58px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
  }
  .mobile-cta-bar i { font-size: 1.15rem; }
  .mobile-cta-bar .fa-whatsapp { color: var(--accent-green); }
  .mobile-cta-bar a.is-primary {
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
    color: var(--bg-primary);
  }
  .float-whatsapp { display: none; }
  .back-to-top { bottom: calc(58px + 1rem + env(safe-area-inset-bottom)); }
  .cookie-banner { bottom: calc(58px + env(safe-area-inset-bottom)); }
  body { padding-bottom: calc(58px + env(safe-area-inset-bottom)); }
}