/* ============================================
   LensVault — Animations & Keyframes
   ============================================ */

/* ---- Scroll progress bar ---- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  z-index: var(--z-progress);
  width: 0%;
  transition: width 0.1s linear;
}

/* ---- Reveal on scroll ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---- Hero text animation ---- */
@keyframes heroTextReveal {
  0% {
    opacity: 0;
    transform: translateY(40px) rotateX(-20deg);
    filter: blur(8px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) rotateX(0);
    filter: blur(0);
  }
}

.hero-text-word {
  display: inline-block;
  opacity: 0;
  animation: heroTextReveal 0.8s var(--ease-out) forwards;
}

/* ---- Shimmer skeleton ---- */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--surface) 0%,
    var(--surface-elevated) 50%,
    var(--surface) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ---- Glow pulse ---- */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px var(--accent-glow); }
  50% { box-shadow: 0 0 40px var(--accent-glow), 0 0 60px var(--accent-glow); }
}

.glow-pulse {
  animation: glowPulse 3s ease-in-out infinite;
}

/* ---- Float ---- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.float { animation: float 4s ease-in-out infinite; }
.float-delay { animation: float 4s ease-in-out 1s infinite; }

/* ---- Slide in from right ---- */
@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

@keyframes slideOutRight {
  from { transform: translateX(0); }
  to { transform: translateX(100%); }
}

/* ---- Fade in ---- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: fadeIn 0.4s var(--ease-out) forwards; }
.fade-in-up { animation: fadeInUp 0.5s var(--ease-out) forwards; }

/* ---- Scale in ---- */
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.scale-in { animation: scaleIn 0.4s var(--ease-spring) forwards; }

/* ---- Counter animation ---- */
@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- Parallax ---- */
.parallax-element {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* ---- Magnetic button ---- */
.magnetic-btn {
  transition: transform 0.2s var(--ease-spring);
  will-change: transform;
}

/* ---- Image hover zoom ---- */
.img-zoom-container {
  overflow: hidden;
  position: relative;
}

.img-zoom-container img {
  transition: transform 0.6s var(--ease-out);
}

.img-zoom-container:hover img {
  transform: scale(1.08);
}

/* ---- Gradient shift ---- */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.gradient-animate {
  background-size: 200% 200%;
  animation: gradientShift 6s ease infinite;
}

/* ---- Rotating border ---- */
@keyframes rotate {
  to { transform: rotate(360deg); }
}

/* ---- Bounce in ---- */
@keyframes bounceIn {
  0% { opacity: 0; transform: scale(0.3); }
  50% { transform: scale(1.05); }
  70% { transform: scale(0.95); }
  100% { opacity: 1; transform: scale(1); }
}

.bounce-in { animation: bounceIn 0.6s var(--ease-spring) forwards; }

/* ---- Marquee ---- */
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.marquee-track {
  display: flex;
  animation: marquee 30s linear infinite;
}

/* ---- Toast ---- */
@keyframes toastIn {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes toastOut {
  from { transform: translateY(0); opacity: 1; }
  to { transform: translateY(100px); opacity: 0; }
}

/* ---- Underline flow ---- */
.link-underline {
  position: relative;
  display: inline-block;
}

.link-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease-out);
}

.link-underline:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}