/* =========================================================
   Animations & Scroll Reveal — Giorgi Samukashvili Portfolio
   ========================================================= */

/* Base reveal state — hidden */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.96);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

/* Visible state — added by scroll-reveal.js */
.reveal.visible,
.reveal-left.visible,
.reveal-right.visible,
.reveal-scale.visible {
  opacity: 1;
  transform: none;
}

/* Stagger delays for child elements */
.reveal-group > *:nth-child(1) { transition-delay: 0ms; }
.reveal-group > *:nth-child(2) { transition-delay: 80ms; }
.reveal-group > *:nth-child(3) { transition-delay: 160ms; }
.reveal-group > *:nth-child(4) { transition-delay: 240ms; }
.reveal-group > *:nth-child(5) { transition-delay: 320ms; }
.reveal-group > *:nth-child(6) { transition-delay: 400ms; }

/* Explicit delay utilities */
.delay-1 { transition-delay: 100ms; }
.delay-2 { transition-delay: 200ms; }
.delay-3 { transition-delay: 300ms; }
.delay-4 { transition-delay: 400ms; }
.delay-5 { transition-delay: 500ms; }

/* --- Hover micro-animations --- */

/* Card lift */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.hover-lift:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

/* Subtle glow ring on focus/hover */
.hover-glow:focus-visible,
.hover-glow:focus {
  outline: 2px solid rgba(255, 255, 255, 0.3);
  outline-offset: 3px;
}

/* Underline slide animation for nav-style links */
.underline-slide {
  position: relative;
  display: inline-block;
}

.underline-slide::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width var(--transition-base);
}

.underline-slide:hover::after {
  width: 100%;
}

/* --- Page transition --- */
body {
  animation: page-fade-in 400ms ease both;
}

@keyframes page-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }
  body {
    animation: none;
  }
  .hover-lift:hover {
    transform: none;
  }
  .underline-slide::after {
    transition: none;
  }
}