@keyframes ambient-drift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(24px, -18px, 0) scale(1.06); }
}

@keyframes soft-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(88, 115, 97, 0); }
  50% { box-shadow: 0 0 0 10px rgba(88, 115, 97, 0.07); }
}

@keyframes line-flow {
  from { transform: translateX(-110%); }
  to { transform: translateX(410%); }
}

body::before {
  content: "";
  position: fixed;
  z-index: -1;
  top: 18%;
  right: -10vw;
  width: min(38vw, 520px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(168, 192, 173, 0.13);
  filter: blur(70px);
  pointer-events: none;
  animation: ambient-drift 14s ease-in-out infinite;
}

.header--scrolled {
  box-shadow: 0 10px 35px rgba(21, 24, 22, 0.055);
}

.logo__mark {
  transition: transform var(--transition), background var(--transition);
}

.logo:hover .logo__mark {
  transform: rotate(-5deg) scale(1.04);
  background: var(--color-accent);
}

.nav__link {
  position: relative;
}

.nav__link:not(.nav__link--cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -0.4rem;
  height: 1px;
  background: var(--color-accent);
  transition: right var(--transition);
}

.nav__link:not(.nav__link--cta):hover::after {
  right: 0;
}

.hero__device-ring::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border-top: 2px solid var(--color-accent);
  border-right: 2px solid transparent;
  animation: spin-slow 12s linear infinite;
}

@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

.hero__device-core {
  animation: soft-pulse 4s ease-in-out infinite;
}

.result-card,
.video-card,
.business__panel {
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.result-card:hover,
.business__panel:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 55px rgba(21, 24, 22, 0.09);
}

.promo-slide__cta,
.btn--primary {
  position: relative;
  overflow: hidden;
}

.promo-slide__cta::after,
.btn--primary::after {
  content: "";
  position: absolute;
  inset-block: 0;
  width: 32%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
  transform: translateX(-110%);
}

.promo-slide--active .promo-slide__cta::after {
  animation: line-flow 3.8s ease-in-out 1s infinite;
}

.section--calculator,
.section--videos,
.section--partner {
  background-image:
    radial-gradient(circle at 8% 15%, rgba(168, 192, 173, 0.12), transparent 24%),
    radial-gradient(circle at 92% 85%, rgba(88, 115, 97, 0.06), transparent 22%);
}

.eyebrow {
  transition: color var(--transition), border-color var(--transition);
}

.section:hover > .container > .section__header .eyebrow,
.section:hover .section__header .eyebrow {
  border-color: var(--color-accent-light);
  color: var(--color-text);
}

.reveal {
  filter: blur(3px);
}

.reveal.is-visible {
  filter: blur(0);
  transition:
    opacity 0.7s cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1),
    filter 0.7s ease;
}

@media (prefers-reduced-motion: reduce) {
  body::before,
  .hero__device-ring::after,
  .hero__device-core,
  .promo-slide__cta::after {
    animation: none;
  }

  .reveal {
    filter: none;
  }
}