/* MOOI — MOTION SYSTEM (Phase 2D) */

/* ============================
   LEVEL 1 — MICRO MOTION
   buttons, links, cards, hover
   150–350ms
   ============================ */

/* Button arrow shift */
.btn-primary,
.nav-menu,
.compare-cta-link { transition: background .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease; }
.btn-primary:hover { box-shadow: 0 4px 18px rgba(0,0,0,.3); }

/* Related device hover */
.related-device { transition: border-color .3s ease, box-shadow .3s ease; }
.related-device:hover { border-color: var(--device-accent-border); box-shadow: 0 18px 48px rgba(0,0,0,.35); }
.related-device-image { transition: transform .35s var(--ease-out); }
.related-device:hover .related-device-image { transform: scale(1.03); }
.related-device-copy a { transition: gap .25s ease, color .25s ease; }
.related-device:hover .related-device-copy a { gap: 16px; color: var(--device-accent); }

/* Catalog card enhanced hover */
.dev-card { transition: border-color .3s ease, box-shadow .3s ease; }
.dev-card:hover { box-shadow: 0 22px 60px rgba(0,0,0,.4); }
.dev-card-cta { transition: background .25s ease, color .25s ease, border-color .25s ease, gap .2s ease; }
.dev-card-cta::after { transition: transform .2s ease; }
.dev-card:hover .dev-card-cta::after { transform: translateX(3px); }

/* Compare card hover */
.compare-card { transition: border-color .3s ease, box-shadow .3s ease, transform .35s var(--ease-out); }
.compare-card:hover { border-color: var(--device-accent-border); box-shadow: 0 16px 44px rgba(0,0,0,.35); transform: translateY(-3px); }
.compare-card-image { transition: transform .35s var(--ease-out); }
.compare-card:hover .compare-card-image { transform: scale(1.03); }

/* Navigation accent indicator */
.nav-center a { position: relative; }
.nav-center a::after { content: ''; position: absolute; bottom: -4px; left: 50%; width: 0; height: 1.5px; background: var(--accent-current, var(--accent-neutral)); transform: translateX(-50%); transition: width .25s ease; border-radius: 1px; }
.nav-center a[style*="color: var(--text-primary)"]::after,
.nav-center a:hover::after { width: 16px; }

/* Flavor filter micro */
.flavor-filter { transition: color .2s ease, border-color .2s ease, background .2s ease, transform .15s ease; }
.flavor-filter:active { transform: scale(.97); }

/* FAQ micro */
.faq-question { transition: color .2s ease; }
.faq-icon { transition: transform .25s ease; }
.faq-item.is-open .faq-icon { transform: rotate(45deg); }

/* ============================
   LEVEL 2 — EDITORIAL MOTION
   sections, blocks, cards
   400–900ms
   ============================ */

/* Semantic reveal variants */
.r--fade { opacity: 0; transition: opacity .7s ease; }
.r--fade.v { opacity: 1; }

.r--mask-up { clip-path: inset(100% 0 0 0); transition: clip-path .6s cubic-bezier(.16,1,.3,1); }
.r--mask-up.v { clip-path: inset(0 0 0 0); }

.r--scale { opacity: 0; transform: scale(.94); transition: opacity .6s ease, transform .6s var(--ease-out); }
.r--scale.v { opacity: 1; transform: none; }

.r--slide-left { opacity: 0; transform: translateX(-32px); transition: opacity .6s ease, transform .6s var(--ease-out); }
.r--slide-left.v { opacity: 1; transform: none; }

.r--slide-right { opacity: 0; transform: translateX(32px); transition: opacity .6s ease, transform .6s var(--ease-out); }
.r--slide-right.v { opacity: 1; transform: none; }

/* Technology block stagger */
.technology-block { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .55s var(--ease-out); }
.technology-block.v { opacity: 1; transform: none; }

/* ============================
   LEVEL 3 — SIGNATURE MOTION
   hero, display, flavors, compare
   ============================ */

/* Product hero masked title reveal */
.hero-title-mask { overflow: hidden; }
.hero-title-mask > * { transform: translateY(100%); opacity: 0; transition: transform .7s cubic-bezier(.16,1,.3,1), opacity .5s ease; }
.hero-title-mask.v > * { transform: none; opacity: 1; }

/* Product hero staged entrance */
.product-entrance { opacity: 0; transform: translateY(24px) scale(.96); }
.product-entrance.v { animation: productEntrance .9s cubic-bezier(.16,1,.3,1) forwards; }
@keyframes productEntrance {
  0% { opacity: 0; transform: translateY(24px) scale(.96); }
  60% { opacity: 1; }
  100% { opacity: 1; transform: none; }
}

/* Ambient light pulse */
@keyframes ambientPulse {
  0%, 100% { opacity: .7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}

/* Compare page — cards entrance (activated by JS adding .compare-animate) */
.compare-animate .compare-card { opacity: 0; transform: translateY(28px); }
.compare-animate.compare-cards-ready .compare-card { animation: compareEntrance .65s var(--ease-out) forwards; }
.compare-animate.compare-cards-ready .compare-card:nth-child(1) { animation-delay: 0s; }
.compare-animate.compare-cards-ready .compare-card:nth-child(2) { animation-delay: .1s; }
.compare-animate.compare-cards-ready .compare-card:nth-child(3) { animation-delay: .2s; }
@keyframes compareEntrance {
  to { opacity: 1; transform: none; }
}

/* Flavor stage — ambient color transition */
.flavor-stage-ambient {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  transition: background .5s ease;
  border-radius: inherit;
}

/* Flavor tile enhanced entrance (tiles start visible; JS adds .flavor-animate to gate) */
.flavor-animate .flavor-tile {
  opacity: 0;
  transform: translateY(16px);
}
.flavor-animate .flavor-tile.v {
  animation: flavorTileIn .45s var(--ease-out) forwards;
  animation-delay: calc(var(--tile-i, 0) * 40ms);
}
@keyframes flavorTileIn {
  to { opacity: 1; transform: none; }
}

/* Flavor tile hover — orb reaction */
.flavor-tile { transition: border-color .3s ease, box-shadow .3s ease; }
.flavor-tile:hover { border-color: color-mix(in srgb, var(--flavor-a) 38%, transparent); box-shadow: 0 12px 36px -6px color-mix(in srgb, var(--flavor-a) 24%, transparent); }
.flavor-orb { transition: transform .4s cubic-bezier(.16,1,.3,1), box-shadow .4s ease; }
.flavor-tile:hover .flavor-orb { transform: translateY(-50%) scale(1.12); box-shadow: 0 0 64px color-mix(in srgb, var(--flavor-a) 35%, transparent), inset 16px 14px 30px rgba(255,255,255,.18), inset -18px -18px 34px rgba(0,0,0,.35); }

/* Flavor section ambient glow */
.flavors-section {
  position: relative;
}
.flavors-section::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 50%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--flavor-ambient, transparent), transparent 70%);
  opacity: .06;
  filter: blur(60px);
  pointer-events: none;
  transform: translateX(-50%);
  transition: background 1s ease;
}

/* ============================
   LIGHT SYSTEM
   Product ambient accents
   ============================ */

/* Accent glow — subtle ambient */
.accent-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-current), transparent 70%);
  opacity: .06;
  filter: blur(80px);
  pointer-events: none;
  transition: opacity 1.2s ease;
}

/* ============================
   PREFERS-REDUCED-MOTION
   ============================ */
@media (prefers-reduced-motion: reduce) {
  .r--mask-up,
  .r--scale,
  .r--slide-left,
  .r--slide-right,
  .r--fade { transition: none; }
  .r--mask-up { clip-path: none; }
  .r--scale,
  .r--slide-left,
  .r--slide-right { transform: none; opacity: 1; }
  .r--fade { opacity: 1; }
  .technology-block { opacity: 1; transform: none; transition: none; }
  .hero-title-mask > * { transform: none; opacity: 1; transition: none; }
  .product-entrance { opacity: 1; transform: none; animation: none; }
  .compare-card { opacity: 1; transform: none; animation: none; }
  .flavor-tile { opacity: 1; transform: none; animation: none; }
  .flavor-orb { transition: none; }
  .related-device-image,
  .compare-card-image,
  .dev-card-img { transition: none; }
  .related-device:hover .related-device-image,
  .compare-card:hover .compare-card-image,
  .dev-card:hover .dev-card-img { transform: none; }
  .compare-card:hover { transform: none; }
  .accent-glow { animation: none; }
}