/**
 * OPEX motion — scroll reveals, hero cascade, reduced-motion safe
 */
:root {
  --opex-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --opex-ease-soft: cubic-bezier(0.33, 1, 0.68, 1);
  --opex-dur: 620ms;
}

/* Hero cascade */
.hero [data-hero] {
  opacity: 0;
  transform: translateY(18px);
  animation: opex-rise var(--opex-dur) var(--opex-ease-out) forwards;
}
.hero [data-hero='1'] { animation-delay: 40ms; }
.hero [data-hero='2'] { animation-delay: 120ms; }
.hero [data-hero='3'] { animation-delay: 200ms; }
.hero [data-hero='4'] { animation-delay: 280ms; }
.hero [data-hero='5'] { animation-delay: 360ms; }

@keyframes opex-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
    filter: blur(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@keyframes opex-shimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

@keyframes opex-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* Scroll reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(6px);
  transition:
    opacity var(--opex-dur) var(--opex-ease-out),
    transform var(--opex-dur) var(--opex-ease-out),
    filter var(--opex-dur) var(--opex-ease-out);
  will-change: opacity, transform, filter;
}
[data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}
[data-reveal='left'] { transform: translateX(-28px); }
[data-reveal='left'].is-in { transform: translateX(0); }
[data-reveal='scale'] { transform: scale(0.96); }
[data-reveal='scale'].is-in { transform: scale(1); }

[data-stagger] > * {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 520ms var(--opex-ease-out),
    transform 520ms var(--opex-ease-out);
}
[data-stagger].is-in > * {
  opacity: 1;
  transform: translateY(0);
}
[data-stagger].is-in > *:nth-child(1) { transition-delay: 40ms; }
[data-stagger].is-in > *:nth-child(2) { transition-delay: 80ms; }
[data-stagger].is-in > *:nth-child(3) { transition-delay: 120ms; }
[data-stagger].is-in > *:nth-child(4) { transition-delay: 160ms; }
[data-stagger].is-in > *:nth-child(5) { transition-delay: 200ms; }
[data-stagger].is-in > *:nth-child(6) { transition-delay: 240ms; }
[data-stagger].is-in > *:nth-child(7) { transition-delay: 280ms; }
[data-stagger].is-in > *:nth-child(8) { transition-delay: 320ms; }
[data-stagger].is-in > *:nth-child(9) { transition-delay: 360ms; }
[data-stagger].is-in > *:nth-child(10) { transition-delay: 400ms; }
[data-stagger].is-in > *:nth-child(11) { transition-delay: 440ms; }
[data-stagger].is-in > *:nth-child(12) { transition-delay: 480ms; }
[data-stagger].is-in > *:nth-child(n + 13) { transition-delay: 520ms; }

/* Interactive polish */
.btn {
  position: relative;
  overflow: hidden;
  transition:
    background 180ms var(--opex-ease-soft),
    border-color 180ms var(--opex-ease-soft),
    color 180ms var(--opex-ease-soft),
    transform 180ms var(--opex-ease-soft),
    box-shadow 180ms var(--opex-ease-soft);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--accent {
  box-shadow: 0 0 0 0 rgba(245, 180, 0, 0.35);
}
.btn--accent:hover {
  box-shadow: 0 8px 24px rgba(245, 180, 0, 0.28);
}
.btn--primary:hover {
  box-shadow: 0 10px 24px rgba(14, 16, 18, 0.18);
}
.btn:focus-visible {
  outline: 2px solid var(--opex-accent);
  outline-offset: 3px;
}

.cat-tile,
.product-card,
.brand-mark,
.card {
  transition:
    transform 220ms var(--opex-ease-soft),
    box-shadow 220ms var(--opex-ease-soft),
    border-color 220ms var(--opex-ease-soft);
}
.cat-tile:hover,
.product-card:hover,
.brand-mark:hover,
.card:hover {
  transform: translateY(-4px);
}

.site-header {
  transition: background 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}
.site-header.is-compact {
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 8px 30px rgba(14, 16, 18, 0.06);
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.55;
  pointer-events: none;
  animation: opex-float 7s var(--opex-ease-soft) infinite;
}
.hero__orb--a {
  width: min(42vw, 420px);
  height: min(42vw, 420px);
  background: radial-gradient(circle, rgba(245, 180, 0, 0.45), transparent 70%);
  top: -12%;
  right: 8%;
}
.hero__orb--b {
  width: min(28vw, 280px);
  height: min(28vw, 280px);
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 70%);
  bottom: -8%;
  left: 12%;
  animation-delay: -2.5s;
}

.hero__line {
  height: 2px;
  width: min(180px, 40%);
  margin-top: 1.25rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--opex-accent), transparent);
  background-size: 200% 100%;
  animation: opex-shimmer 2.8s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  [data-reveal],
  [data-stagger] > *,
  .hero [data-hero] {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
}