/* ============================================
   HIC Group — Animations & Transitions
   ============================================ */

/* Fade In on Scroll */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Fade In from Left */
.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Fade In from Right */
.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Scale In */
.scale-in {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger Animation 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; }

/* Image Hover Effects */
.hover-zoom {
  overflow: hidden;
}

.hover-zoom img {
  transition: transform 0.8s ease;
}

.hover-zoom:hover img {
  transform: scale(1.05);
}

/* Button Hover Ripple */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

/* Navigation Underline Animation */
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Project Card Overlay Animation */
.project-card-overlay {
  opacity: 0;
  transition: opacity 0.4s ease;
}

.project-card:hover .project-card-overlay {
  opacity: 1;
}

/* Parallax Effect (JS-driven) */
.parallax {
  will-change: transform;
}

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

.loader {
  width: 40px;
  height: 40px;
  border: 2px solid var(--bg-secondary);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Page Transition */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--bg-dark);
  z-index: 9999;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.6s cubic-bezier(0.77, 0, 0.175, 1);
}

.page-transition.active {
  transform: scaleY(1);
}

/* Smooth Section Reveal */
@keyframes sectionReveal {
  from {
    opacity: 0;
    clip-path: inset(100px 0 0 0);
  }
  to {
    opacity: 1;
    clip-path: inset(0 0 0 0);
  }
}

.section-reveal {
  animation: sectionReveal 1s ease forwards;
}