/* ============================================
   SHIVANI NALLA - PORTFOLIO
   Animations & Effects
   ============================================ */

/* ---------- Scroll Reveal Animations ---------- */
.reveal-up,
.reveal-left,
.reveal-right,
.reveal-scale {
  opacity: 0;
  transition: all 0.9s var(--ease-out-expo);
  will-change: transform, opacity;
}

.reveal-up {
  transform: translateY(50px);
}

.reveal-left {
  transform: translateX(-60px);
}

.reveal-right {
  transform: translateX(60px);
}

.reveal-scale {
  transform: scale(0.9);
}

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed,
.reveal-scale.revealed {
  opacity: 1;
  transform: translate(0, 0) scale(1);
}

/* Staggered delays */
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="200"] { transition-delay: 0.2s; }
[data-delay="300"] { transition-delay: 0.3s; }
[data-delay="400"] { transition-delay: 0.4s; }
[data-delay="500"] { transition-delay: 0.5s; }
[data-delay="600"] { transition-delay: 0.6s; }
[data-delay="700"] { transition-delay: 0.7s; }
[data-delay="800"] { transition-delay: 0.8s; }
[data-delay="900"] { transition-delay: 0.9s; }

/* ---------- Magnetic Button Effect ---------- */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

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

/* ---------- Text Shimmer Effect ---------- */
.text-accent {
  background: linear-gradient(
    120deg,
    var(--nutmeg) 0%,
    var(--hazelnut) 25%,
    var(--nutmeg) 50%,
    var(--hazelnut) 75%,
    var(--nutmeg) 100%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 200% center; }
  100% { background-position: -200% center; }
}

/* ---------- Card Hover Glow ---------- */
.service-card::after,
.portfolio-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.5s ease;
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(139, 94, 60, 0.06),
    transparent 40%
  );
  pointer-events: none;
  z-index: 0;
}

.service-card:hover::after,
.portfolio-card:hover::after {
  opacity: 1;
}

.service-card > *,
.portfolio-card > * {
  position: relative;
  z-index: 1;
}

/* ---------- Parallax Tilt ---------- */
.hero-image {
  transition: transform 0.6s var(--ease-out-expo);
}

.hero-image-wrapper:hover .hero-image {
  transform: perspective(1000px) rotateY(3deg) rotateX(2deg);
}

/* ---------- Smooth Section Transitions ---------- */
.section {
  position: relative;
}

.section::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(139, 94, 60, 0.1),
    transparent
  );
  opacity: 0;
  transition: opacity 0.5s ease;
}

/* ---------- Skill Bar Animation ---------- */
.skill-fill {
  position: relative;
  overflow: hidden;
}

.skill-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: skill-shine 2s ease-in-out infinite;
}

@keyframes skill-shine {
  0% { left: -100%; }
  100% { left: 200%; }
}

/* ---------- Navigation Link Underline ---------- */
.nav-link {
  position: relative;
  padding-bottom: 4px;
}

/* ---------- Image Reveal on Load ---------- */
.hero-image,
.about-image {
  clip-path: inset(0 100% 0 0);
  animation: image-reveal 1.2s var(--ease-out-expo) 0.5s forwards;
}

@keyframes image-reveal {
  to {
    clip-path: inset(0 0 0 0);
  }
}

/* ---------- Floating Particles ---------- */
.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--hazelnut);
  border-radius: 50%;
  opacity: 0.3;
  animation: particle-float linear infinite;
}

@keyframes particle-float {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% { opacity: 0.3; }
  90% { opacity: 0.3; }
  100% {
    transform: translateY(-100px) rotate(720deg);
    opacity: 0;
  }
}

/* ---------- Marquee Hover Pause ---------- */
.marquee-section:hover .marquee-content {
  animation-play-state: paused;
}

/* ---------- Service Card Entrance ---------- */
.service-card {
  opacity: 0;
  animation: card-enter 0.8s var(--ease-out-expo) forwards;
}

.service-card:nth-child(1) { animation-delay: 0.1s; }
.service-card:nth-child(2) { animation-delay: 0.2s; }
.service-card:nth-child(3) { animation-delay: 0.3s; }
.service-card:nth-child(4) { animation-delay: 0.4s; }
.service-card:nth-child(5) { animation-delay: 0.5s; }
.service-card:nth-child(6) { animation-delay: 0.6s; }
.service-card:nth-child(7) { animation-delay: 0.7s; }
.service-card:nth-child(8) { animation-delay: 0.8s; }
.service-card:nth-child(9) { animation-delay: 0.9s; }
.service-card:nth-child(10) { animation-delay: 1.0s; }

@keyframes card-enter {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Counter Animation ---------- */
.stat-number {
  transition: all 0.5s ease;
}

/* ---------- Page Transition ---------- */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--cocoa-deep);
  z-index: 9999;
  transform: scaleY(1);
  transform-origin: top;
  transition: transform 0.8s var(--ease-out-expo);
}

.page-transition.hidden {
  transform: scaleY(0);
  transform-origin: bottom;
}

/* ---------- Hover Line Effect ---------- */
.highlight-item {
  position: relative;
  overflow: hidden;
}

.highlight-item::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-out-expo);
}

.highlight-item:hover::before {
  transform: scaleX(1);
}

/* ---------- Process Card Number Glow ---------- */
.process-card:hover .process-step {
  text-shadow: 0 0 40px rgba(196, 168, 130, 0.3);
}

/* ---------- Social Link Ripple ---------- */
.social-link {
  position: relative;
  overflow: hidden;
}

.social-link::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
  transform: scale(0);
  transition: transform 0.5s ease;
}

.social-link:hover::after {
  transform: scale(2);
}

/* ---------- Smooth Scroll Snap ---------- */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-subtitle {
    margin: 0 auto 36px;
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .hero-float-card {
    display: none;
  }
}