/* ── Premium scroll animations ── */

@keyframes aurora-drift {
  0% { transform: translate3d(0, 0, 0) rotate(0deg); }
  100% { transform: translate3d(8%, 4%, 0) rotate(8deg); }
}

.hero__aurora::before {
  animation: aurora-drift 18s ease-in-out infinite alternate;
  will-change: transform;
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-up,
  .reveal-left,
  .reveal-right,
  .reveal-scale,
  .principle-card,
  .service-card,
  .who-card,
  .scale-tier,
  .hero,
  .hero__aurora,
  .hero__aurora::before {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
    animation: none !important;
  }
  .principle-card__inner {
    transform: none !important;
    transform-style: flat;
    min-height: auto;
    border: 1px solid var(--clr-border);
    border-radius: 10px;
    background: var(--clr-card-bg);
    overflow: hidden;
  }
  .principle-card__front,
  .principle-card__back {
    position: relative;
    inset: auto;
    backface-visibility: visible;
    transform: none !important;
    border: none;
    background: transparent;
    border-radius: 0;
    justify-content: flex-start;
  }
  .principle-card__front {
    padding: 28px 24px 8px;
  }
  .principle-card__back {
    padding: 0 24px 24px;
  }
  .principle-card__num {
    opacity: 0.35;
  }
}

.reveal,
.reveal-up,
.reveal-left,
.reveal-right,
.reveal-scale {
  opacity: 0;
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              filter 0.7s ease;
  will-change: opacity, transform;
}

.reveal-up    { transform: translateY(40px); }
.reveal-left  { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.reveal-scale { transform: scale(0.96); filter: blur(4px); }

.reveal.is-visible,
.reveal-up.is-visible,
.reveal-left.is-visible,
.reveal-right.is-visible,
.reveal-scale.is-visible {
  opacity: 1;
  transform: none;
  filter: none;
}

/* Stagger delays */
[data-stagger="1"] { transition-delay: 0.08s; }
[data-stagger="2"] { transition-delay: 0.16s; }
[data-stagger="3"] { transition-delay: 0.24s; }
[data-stagger="4"] { transition-delay: 0.32s; }
[data-stagger="5"] { transition-delay: 0.40s; }
[data-stagger="6"] { transition-delay: 0.48s; }

/* Principles: line-reveal number */
.principle-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.principle-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.principle-card__num {
  transform: translateX(20px);
  opacity: 0;
  transition: transform 0.5s ease 0.2s, opacity 0.5s ease 0.2s;
}
.principle-card.is-visible .principle-card__num {
  transform: translateX(0);
  opacity: 0.35;
}

/* Hero parallax-like subtle float */
.hero {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.hero.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero .eyebrow,
.hero h1,
.hero .lead,
.hero-actions,
.hero-badges {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.hero.is-visible .eyebrow    { opacity: 1; transform: translateY(0); transition-delay: 0.1s; }
.hero.is-visible h1          { opacity: 1; transform: translateY(0); transition-delay: 0.2s; }
.hero.is-visible .lead       { opacity: 1; transform: translateY(0); transition-delay: 0.3s; }
.hero.is-visible .hero-actions { opacity: 1; transform: translateY(0); transition-delay: 0.4s; }
.hero.is-visible .hero-badges  { opacity: 1; transform: translateY(0); transition-delay: 0.5s; }

/* Premium hover lifts */
.who-card,
.service-card,
.threat-card {
  transition: transform 0.35s ease, box-shadow 0.35s ease, opacity 0.6s ease, filter 0.35s ease;
}
.who-card:hover,
.service-card:hover,
.threat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(30, 45, 97, 0.12);
}
.principle-card .principle-card__inner {
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease;
}
.principle-card:hover .principle-card__inner {
  box-shadow: 0 20px 40px rgba(30, 45, 97, 0.12);
}

/* Cards dim siblings on hover (interactive focus) */
.who-grid:hover .who-card:not(:hover),
.threat-grid:hover .threat-card:not(:hover),
.services-grid:hover .service-card:not(:hover),
.principles-grid:hover .principle-card:not(:hover) {
  opacity: 0.65;
  filter: grayscale(0.15);
}

/* Scale tier subtle pulse on hover */
.scale-tier {
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.scale-tier:hover {
  transform: translateY(-4px);
  border-color: var(--clr-accent);
  box-shadow: 0 12px 28px rgba(30, 45, 97, 0.10);
}

/* CTA underline sweep */
.btn {
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,0.12) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}
.btn:hover::after {
  transform: translateX(100%);
}

/* Nav link magnetic underline */
.site-nav a::after {
  transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Smooth section rhythm */
section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Ensure hero and visible-by-default elements still show */
.hero.is-visible,
section.is-visible {
  opacity: 1;
  transform: translateY(0);
}