/* ============================================
   HAN INTERACTIVE — Animations
   Scroll reveals, transitions, hovers
   ============================================ */

/* ---- Scroll Reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-reveal) var(--ease-out),
              transform var(--duration-reveal) var(--ease-out);
}

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

/* Staggered children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--duration-reveal) var(--ease-out),
              transform var(--duration-reveal) var(--ease-out);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 100ms; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 200ms; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 300ms; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 400ms; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 500ms; }

.reveal-stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Fade variants ---- */
.reveal--up {
  transform: translateY(30px);
}

.reveal--left {
  transform: translateX(-20px);
}

.reveal--right {
  transform: translateX(20px);
}

.reveal--scale {
  transform: scale(0.96);
}

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

/* ---- Hero animations ---- */
.hero__label {
  opacity: 0;
  animation: fadeIn 0.8s var(--ease-out) 0.15s forwards;
}

.hero__title {
  opacity: 0;
  transform: translateY(30px);
  animation: heroReveal 1s var(--ease-out) 0.3s forwards;
}

.hero__slogan {
  opacity: 0;
  animation: fadeIn 0.8s var(--ease-out) 0.6s forwards;
}

.hero__founder {
  opacity: 0;
  animation: fadeIn 0.8s var(--ease-out) 0.75s forwards;
}

.hero__intro {
  opacity: 0;
  animation: fadeIn 0.8s var(--ease-out) 0.9s forwards;
}

.hero__actions {
  opacity: 0;
  animation: fadeIn 0.8s var(--ease-out) 1.05s forwards;
}

.hero__status {
  opacity: 0;
  animation: fadeIn 0.8s var(--ease-out) 1.2s forwards;
}

.hero__grid-lines {
  opacity: 0;
  animation: fadeIn 1.5s var(--ease-out) 0.3s forwards;
}

.hero__bg-glow {
  opacity: 0;
  animation: glowIn 2s var(--ease-out) 0.5s forwards;
}

@keyframes heroReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@keyframes glowIn {
  to {
    opacity: 1;
  }
}

/* ---- Subtle float animation for ambient elements ---- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ---- Glow pulse ---- */
@keyframes glowPulse {
  0%, 100% { 
    box-shadow: 0 0 20px rgba(199, 169, 74, 0.05); 
  }
  50% { 
    box-shadow: 0 0 40px rgba(199, 169, 74, 0.12); 
  }
}

/* ---- Page transition ---- */
.page-transition {
  animation: pageIn 0.6s var(--ease-out) forwards;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- Link underline animation ---- */
.animated-underline {
  position: relative;
}

.animated-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width var(--duration-normal) var(--ease-out);
}

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

/* ---- Noise shimmer (very subtle) ---- */
@keyframes noiseShift {
  0% { transform: translate(0, 0); }
  10% { transform: translate(-1%, -1%); }
  20% { transform: translate(1%, 0%); }
  30% { transform: translate(0%, 1%); }
  40% { transform: translate(-1%, 0%); }
  50% { transform: translate(1%, -1%); }
  60% { transform: translate(0%, 0%); }
  70% { transform: translate(-1%, 1%); }
  80% { transform: translate(1%, 0%); }
  90% { transform: translate(0%, -1%); }
  100% { transform: translate(0, 0); }
}

body::before {
  animation: noiseShift 8s steps(10) infinite;
}

/* ---- Parallax-like card tilt on hover ---- */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* ---- Shimmer line animation (for featured elements) ---- */
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}

.shimmer-line {
  position: relative;
  overflow: hidden;
}

.shimmer-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-muted), transparent);
  animation: shimmer 4s var(--ease-in-out) infinite;
}

/* ---- Typing cursor blink ---- */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.cursor-blink::after {
  content: '▌';
  color: var(--accent);
  font-size: 0.8em;
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}