/* ============================================
   PREMIUM ANIMATIONS — Madhav Polymers
   Lightweight CSS + native scroll reveals
   ============================================ */

/* Hero entrance — CSS only, no JS blocking */
@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

#header {
  animation: heroFadeUp 0.45s ease forwards;
}

.hero-trust { animation: heroFadeUp 0.5s ease 0.1s both; }
.hero-title { animation: heroFadeUp 0.55s ease 0.2s both; }
.hero-desc { animation: heroFadeUp 0.5s ease 0.3s both; }
.hero-badges .badge:nth-child(1) { animation: heroFadeUp 0.45s ease 0.4s both; }
.hero-badges .badge:nth-child(2) { animation: heroFadeUp 0.45s ease 0.48s both; }
.hero-cta a:nth-child(1) { animation: heroFadeUp 0.45s ease 0.52s both; }
.hero-cta a:nth-child(2) { animation: heroFadeUp 0.45s ease 0.58s both; }
.hero-banner-img { animation: heroBannerIn 0.65s ease 0.15s both; }

/* Scroll reveals */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  transition-delay: var(--reveal-delay, 0s);
}

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

/* Header — solid scroll state (no blur = faster) */
.header {
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.header.header-scrolled {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 4px 20px rgba(61, 31, 140, 0.08);
}

/* Nav underline */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 8px;
  height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--orange));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

/* Quote button */
.btn-quote {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.btn-quote:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255, 107, 0, 0.28);
}
.btn-quote:hover .btn-quote-icon {
  transform: translateX(3px);
}
.btn-quote-icon {
  transition: transform 0.25s ease;
}

/* CTA buttons */
.btn-primary,
.btn-outline {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.btn-primary:hover,
.btn-outline:hover {
  transform: translateY(-2px);
}

/* Product cards */
.product-card {
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.product-card.is-hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(61, 31, 140, 0.12);
}
.product-card-icon img {
  transition: transform 0.35s ease;
}
.product-card.is-hover .product-card-icon img {
  transform: scale(1.06);
}
.product-card .learn-more {
  transition: gap 0.25s ease, transform 0.25s ease;
}
.product-card.is-hover .learn-more {
  gap: 10px;
  transform: translateX(3px);
}

/* ISO bar */
.iso-item {
  transition: transform 0.25s ease;
}
.iso-item:hover {
  transform: translateY(-3px);
}
.iso-icon-wrap img {
  transition: transform 0.3s ease;
}
.iso-item:hover .iso-icon-wrap img {
  transform: scale(1.08);
}

/* Industries */
.industry-list li {
  transition: transform 0.25s ease, background 0.25s ease, padding-left 0.25s ease;
}
.industry-list li:hover {
  transform: translateX(5px);
  background: rgba(61, 31, 140, 0.06);
  padding-left: 14px;
}
.ind-icon img {
  transition: transform 0.25s ease;
}
.industry-list li:hover .ind-icon img {
  transform: scale(1.06);
}

/* Why Choose */
.why-item {
  transition: background 0.25s ease;
}
.why-item.is-hover {
  background: rgba(254, 243, 233, 0.45);
}
.why-icon img {
  transition: transform 0.3s ease;
}
.why-item.is-hover .why-icon img {
  transform: scale(1.06);
}

/* Application cards */
.app-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.app-card.is-hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(61, 31, 140, 0.12);
}
.app-img-container img {
  transition: transform 0.45s ease;
}
.app-img-container--portrait img {
  transform-origin: center bottom;
}
.app-card.is-hover .app-img-container img {
  transform: scale(1.05);
}

/* About */
.stat-icon-wrap img {
  transition: transform 0.3s ease;
}
.stat-card.counted .stat-icon-wrap img {
  transform: scale(1.08);
}

/* Footer */
.footer-logo-img {
  transition: transform 0.3s ease;
}
.footer-logo:hover .footer-logo-img {
  transform: scale(1.02);
}
.social-btn {
  transition: transform 0.25s ease, background 0.25s ease;
}
.social-btn:hover {
  transform: translateY(-3px);
}
.footer-col ul li a,
.footer-links a {
  position: relative;
}
.footer-col ul li a::after,
.footer-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.footer-col ul li a:hover::after,
.footer-links a:hover::after {
  transform: scaleX(1);
}

/* Mobile — minimal */
@media (max-width: 767px) {
  .product-card.is-hover,
  .app-card.is-hover {
    transform: none;
  }
  .reveal-on-scroll {
    transform: translateY(10px);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
  #header,
  .hero-left > *,
  .hero-banner-img {
    animation: none;
    opacity: 1;
    transform: none;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}