/**
 * Scroll reveal + micro-interactions (phase 5)
 * GPU-friendly: opacity + transform only
 */

/* Smooth anchors — disabled under reduced-motion via variables.css */
html {
  scroll-behavior: smooth;
}

[id] {
  scroll-margin-top: var(--header-offset);
}

/* ---- Reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition:
    opacity var(--duration-slow) var(--ease-emphasized),
    transform var(--duration-slow) var(--ease-emphasized);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-1rem);
  transition:
    opacity var(--duration-slow) var(--ease-emphasized),
    transform var(--duration-slow) var(--ease-emphasized);
}

.reveal-right {
  opacity: 0;
  transform: translateX(1rem);
  transition:
    opacity var(--duration-slow) var(--ease-emphasized),
    transform var(--duration-slow) var(--ease-emphasized);
}

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

/* Stagger children (max ~350ms) */
.stagger > .reveal:nth-child(1),
.stagger > .reveal-left:nth-child(1),
.stagger > .reveal-right:nth-child(1) { transition-delay: 0ms; }
.stagger > .reveal:nth-child(2),
.stagger > .reveal-left:nth-child(2),
.stagger > .reveal-right:nth-child(2) { transition-delay: 70ms; }
.stagger > .reveal:nth-child(3),
.stagger > .reveal-left:nth-child(3),
.stagger > .reveal-right:nth-child(3) { transition-delay: 140ms; }
.stagger > .reveal:nth-child(4),
.stagger > .reveal-left:nth-child(4),
.stagger > .reveal-right:nth-child(4) { transition-delay: 210ms; }
.stagger > .reveal:nth-child(5),
.stagger > .reveal-left:nth-child(5),
.stagger > .reveal-right:nth-child(5) { transition-delay: 280ms; }
.stagger > .reveal:nth-child(n + 6),
.stagger > .reveal-left:nth-child(n + 6),
.stagger > .reveal-right:nth-child(n + 6) { transition-delay: 350ms; }

/* ---- Hero entrance (text/CTA only — image stays painted for LCP) ---- */
.hero__eyebrow-anim,
.hero__title-anim,
.hero__lead-anim,
.hero__actions-anim,
.hero__trust-anim {
  animation: hero-rise var(--duration-slow) var(--ease-emphasized) both;
}

.hero__title-anim { animation-delay: 40ms; }
.hero__lead-anim { animation-delay: 90ms; }
.hero__actions-anim { animation-delay: 140ms; }
.hero__trust-anim { animation-delay: 180ms; }

.hero__media-anim {
  animation: hero-media var(--duration-slow) var(--ease-emphasized) both;
  animation-delay: 80ms;
}

@keyframes hero-rise {
  from {
    opacity: 0;
    transform: translateY(0.75rem);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes hero-media {
  from {
    transform: scale(0.98);
  }
  to {
    transform: scale(1);
  }
}

/* ---- Header scrolled state (no height change) ---- */
.site-header {
  transition:
    background-color var(--duration-normal) var(--ease-standard),
    box-shadow var(--duration-normal) var(--ease-standard),
    border-color var(--duration-normal) var(--ease-standard);
}

.site-header.is-scrolled {
  background: var(--color-surface);
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 0 var(--color-border), var(--shadow-sm);
}

/* ---- Mega menu enter ---- */
.mega-layer {
  opacity: 0;
  transform: translateY(-6px);
  transition:
    opacity var(--duration-normal) var(--ease-emphasized),
    transform var(--duration-normal) var(--ease-emphasized);
  pointer-events: none;
}

.mega-layer.is-open {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

/* ---- Mobile drawer ---- */
.mobile-nav-backdrop {
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-standard);
}

.mobile-nav-backdrop.is-open {
  opacity: 1;
}

.mobile-nav {
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-emphasized);
  will-change: transform;
}

.mobile-nav.is-open {
  transform: translateX(0);
}

/* ---- Card / image micro ---- */
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .card {
    transition:
      transform var(--duration-normal) var(--ease-emphasized),
      box-shadow var(--duration-normal) var(--ease-emphasized),
      border-color var(--duration-normal) var(--ease-standard);
  }

  .card:hover {
    transform: translateY(-4px);
  }

  .card__media img {
    transition: transform var(--duration-slow) var(--ease-emphasized);
  }

  .card:hover .card__media img {
    transform: scale(1.03);
  }

  .card--brand:hover img {
    transform: scale(1.02);
    opacity: 0.92;
  }

  .card--brand img {
    transition:
      transform var(--duration-normal) var(--ease-emphasized),
      opacity var(--duration-normal) var(--ease-standard);
  }

  .card--district a,
  .card--district span {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
  }

  .card--district a::after,
  .card--district .district-arrow {
    content: "→";
    display: inline-block;
    transition: transform var(--duration-fast) var(--ease-emphasized);
  }

  .card--district:hover a::after,
  .card--district:hover .district-arrow {
    transform: translateX(4px);
  }

  .card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: color var(--duration-fast) var(--ease-standard), gap var(--duration-fast) var(--ease-standard);
  }

  .card__link::after {
    content: "→";
    transition: transform var(--duration-fast) var(--ease-emphasized);
  }

  .card:hover .card__link::after {
    transform: translateX(3px);
  }

  .btn {
    transition:
      background-color var(--duration-fast) var(--ease-standard),
      color var(--duration-fast) var(--ease-standard),
      border-color var(--duration-fast) var(--ease-standard),
      transform var(--duration-fast) var(--ease-emphasized),
      box-shadow var(--duration-fast) var(--ease-standard);
  }

  .btn:hover {
    transform: translateY(-1px);
  }

  .btn:active {
    transform: translateY(0);
  }
}

/* ---- SSS / FAQ ---- */
.sss-card {
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* ---- Form focus prep (no forms built yet) ---- */
.form-control:focus,
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(23, 105, 224, 0.18);
  transition:
    border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

/* ---- Scroll to top ---- */
.scroll-top {
  position: fixed;
  right: 1rem;
  bottom: calc(4.75rem + env(safe-area-inset-bottom, 0px));
  z-index: 170;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(0.96);
  transition:
    opacity var(--duration-normal) var(--ease-emphasized),
    transform var(--duration-normal) var(--ease-emphasized),
    visibility var(--duration-normal) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard);
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.scroll-top:hover,
.scroll-top:focus-visible {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

@media (min-width: 1024px) {
  .scroll-top {
    bottom: 1.5rem;
    right: 1.5rem;
  }
}

/* Decorative blobs — non-interactive */
.decor-blob {
  pointer-events: none;
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.35;
  z-index: 0;
}

/* ---- Reduced motion: show everything, kill motion ---- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .reveal-left,
  .reveal-right {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero__eyebrow-anim,
  .hero__title-anim,
  .hero__lead-anim,
  .hero__actions-anim,
  .hero__trust-anim,
  .hero__media-anim {
    animation: none;
  }

  .mega-layer,
  .mobile-nav,
  .mobile-nav-backdrop,
  .scroll-top {
    transition: none;
  }
}