/* ============================================================
   AiSleep — Unified Design System for product pages
   Aligned with the brand design language of /css/brand.css
   ============================================================ */

/* ---- Design Tokens (mirror brand.css :root) ---- */
:root {
  --ink: #0B1526;
  --ink-deep: #101E36;
  --cloud: #F6F8FB;
  --mist: #E7EDF5;
  --glacier: #62B5E4;
  --cobalt: #2158A7;
  --iris: #3D3E8E;
  --dusk: #5A6B85;
  --fog: #93A5C1;
  --paper: #ffffff;
  --line: rgba(11, 21, 38, 0.1);
  --line-soft: rgba(11, 21, 38, 0.06);
  --line-dark: rgba(246, 248, 251, 0.1);

  /* Radius scale */
  --r-sm: 0.85rem;
  --r-md: 1.3rem;
  --r-lg: 1.75rem;
  --r-xl: 2rem;
  --r-2xl: 2.5rem;
  --r-pill: 9999px;

  /* Shadow scale */
  --shadow-xs: 0 1px 3px rgba(11, 21, 38, 0.04);
  --shadow-sm: 0 2px 12px rgba(11, 21, 38, 0.05);
  --shadow-card: 0 10px 40px -12px rgba(11, 21, 38, 0.12);
  --shadow-lift: 0 20px 48px -18px rgba(11, 21, 38, 0.22);
  --shadow-soft: 0 24px 70px -28px rgba(11, 21, 38, 0.25);
  --shadow-dark: 0 4px 24px rgba(0, 0, 0, 0.18);
  --shadow-dark-lift: 0 18px 44px rgba(0, 0, 0, 0.3);

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.22, 0.61, 0.36, 1);
}

html { scroll-behavior: smooth; }
::selection { background: var(--glacier); color: #fff; }

/* ---- Global grain texture overlay (shared brand surface) ---- */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: 9999;
  pointer-events: none;
  opacity: .028;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

/* ---- Typography system ---- */
h1, h2, h3 { letter-spacing: -.045em; }
h1 { line-height: 1.05; }
h2 { line-height: 1.1; }
h3 { line-height: 1.2; }

.kicker {
  display: inline-flex; align-items: center; gap: .75rem;
  margin: 0;
  color: var(--cobalt);
  font-size: .71rem; font-weight: 800;
  letter-spacing: .28em; text-transform: uppercase;
}
.kicker::before {
  content: "";
  width: 2rem; height: 2px; flex-shrink: 0;
  border-radius: 2px; background: currentColor;
}
.kicker-dark { color: #B9E1F8; }

.accent {
  font-family: Fraunces, Georgia, serif;
  font-style: italic; font-weight: 500;
  color: var(--cobalt); letter-spacing: 0;
}

/* Chinese mode: relax latin display treatments */
body.zh .accent { font-family: inherit; font-style: normal; font-weight: 800; }
body.zh h1, body.zh h2, body.zh h3 { letter-spacing: 0; }
body.zh .kicker { letter-spacing: .18em; }

/* Section rhythm — mirrors homepage clamp() scale */
section[id] { scroll-margin-top: 88px; }

/* Section headers — editorial index numbers for rhythm & hierarchy */
.sec-index {
  position: absolute; top: -3.2rem; left: -.2rem;
  font-size: clamp(4.5rem, 8vw, 7rem); font-weight: 800; line-height: 1;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(11, 21, 38, .12);
  pointer-events: none; user-select: none;
  animation: indexDrift 1.1s var(--ease-out) both;
}
@keyframes indexDrift { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.sec-index-dark { -webkit-text-stroke: 1px rgba(246, 248, 251, .14); }

/* Display heading gradient treatment (section titles only)
   NOTE: #hero h1 is word-split by GSAP (.word/.word-inner + transforms).
   background-clip:text on transformed split nodes produces stale-paint ghosts
   and fill dropouts on real Chrome during the entrance animation, so the hero
   stays solid ink + solid cobalt accent; gradients are limited to unsplit h2. */
#hero h1 { color: var(--ink); }
@supports (background-clip: text) {
  section[id] h2 {
    background: linear-gradient(140deg, var(--ink) 30%, var(--ink-deep) 62%, var(--iris) 105%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
  }
  #pain h2, #brand h2, #real-posture h2 {
    background: linear-gradient(140deg, var(--cloud) 30%, #DCE7F5 62%, var(--glacier) 108%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  /* Experience band quote stays pure white over photography */
  #experience h2 {
    background: none;
    -webkit-background-clip: initial; background-clip: initial;
    -webkit-text-fill-color: #fff; color: #fff;
  }
}

/* ---- Buttons (unified CTA system) ---- */
.btn-primary, .btn-ghost, .btn-light {
  display: inline-flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  min-height: 3.1rem;
  border-radius: var(--r-pill);
  padding: .85rem 1.85rem;
  font-size: .85rem; font-weight: 800; letter-spacing: .01em;
  text-decoration: none;
  transition: background .3s ease, box-shadow .3s ease, color .3s ease, border-color .3s ease, transform .3s var(--ease-out);
}
.btn-primary {
  background: var(--ink); color: var(--cloud);
  box-shadow: 0 14px 34px -14px rgba(11, 21, 38, .5);
}
.btn-primary:hover {
  background: var(--cobalt);
  box-shadow: 0 16px 44px -12px rgba(33, 88, 167, .55), 0 0 0 6px rgba(33, 88, 167, .08);
  transform: translateY(-2px);
}
.btn-primary::after {
  content: "";
  position: absolute; inset: 0; border-radius: var(--r-pill);
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, .14) 50%, transparent 70%);
  transform: translateX(-110%);
  transition: transform .7s ease;
}
.btn-primary:hover::after { transform: translateX(110%); }
.btn-ghost {
  border: 1.5px solid rgba(11, 21, 38, .16);
  color: var(--ink); background: transparent;
}
.btn-ghost:hover {
  border-color: var(--ink); color: var(--cloud); background: var(--ink);
  box-shadow: 0 12px 28px -14px rgba(11, 21, 38, .55);
  transform: translateY(-2px);
}
.btn-light {
  background: var(--cloud); color: var(--ink);
  box-shadow: 0 18px 44px -16px rgba(0, 0, 0, .45);
}
.btn-light:hover {
  background: var(--paper);
  box-shadow: 0 20px 50px -14px rgba(0, 0, 0, .5), 0 0 0 6px rgba(255, 255, 255, .12);
  transform: translateY(-2px);
}
.btn-primary:focus-visible, .btn-ghost:focus-visible, .btn-light:focus-visible {
  outline: 3px solid var(--glacier); outline-offset: 3px;
}

/* ---- Chips / tags ---- */
.chip {
  display: inline-flex; align-items: center;
  border-radius: var(--r-pill);
  border: 1px solid rgba(11, 21, 38, .08);
  background: rgba(255, 255, 255, .72);
  backdrop-filter: blur(8px);
  padding: .5rem 1.1rem;
  font-size: .72rem; font-weight: 700; line-height: 1.25;
  color: var(--dusk);
  box-shadow: var(--shadow-xs);
}
.tag-card {
  display: inline-block;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(12px);
  padding: .6rem 1.2rem;
  font-size: .8rem; font-weight: 800; color: var(--cobalt);
  box-shadow: 0 8px 32px -14px rgba(11, 21, 38, .2), 0 0 0 1px rgba(255, 255, 255, .6);
}
.float-tag { animation: float 7s ease-in-out infinite; }

/* Hero product image — layered presentation */
#hero-img {
  box-shadow: 0 40px 90px -32px rgba(11, 21, 38, .35), 0 0 0 1px rgba(255, 255, 255, .6);
}

/* Image surfaces — Ken Burns zoom on hover inside clipped frames */
.img-frame { overflow: hidden; position: relative; }
.img-frame img { transition: transform .9s var(--ease-soft); }
.img-frame:hover img { transform: scale(1.045); }

/* Color card figcaptions */
#colors figure { background: var(--cloud); transition: transform .4s var(--ease-out), box-shadow .4s ease; }
#colors figure:hover { transform: translateY(-6px); box-shadow: var(--shadow-lift); }
#colors figcaption { letter-spacing: .02em; }

/* ---- Backgrounds ---- */
.hero-bg {
  background:
    radial-gradient(52rem 28rem at 80% 10%, rgba(98, 181, 228, .18), transparent 58%),
    radial-gradient(40rem 24rem at 14% 82%, rgba(61, 62, 142, .12), transparent 58%),
    radial-gradient(32rem 18rem at 60% 50%, rgba(255, 255, 255, .5), transparent 60%),
    linear-gradient(175deg, #F6F8FB 0%, #EDF2F9 50%, #F2F5FA 100%);
}
.cta-bg {
  background:
    radial-gradient(1px 1px at 12% 18%, rgba(255, 255, 255, .5), transparent),
    radial-gradient(1px 1px at 28% 42%, rgba(255, 255, 255, .35), transparent),
    radial-gradient(1.5px 1.5px at 45% 8%, rgba(255, 255, 255, .45), transparent),
    radial-gradient(1px 1px at 62% 28%, rgba(255, 255, 255, .3), transparent),
    radial-gradient(1.5px 1.5px at 78% 55%, rgba(255, 255, 255, .4), transparent),
    radial-gradient(1px 1px at 88% 15%, rgba(255, 255, 255, .35), transparent),
    radial-gradient(1px 1px at 35% 72%, rgba(255, 255, 255, .25), transparent),
    radial-gradient(1.5px 1.5px at 52% 88%, rgba(255, 255, 255, .3), transparent),
    radial-gradient(50rem 26rem at 50% 118%, rgba(98, 181, 228, .35), transparent 62%),
    radial-gradient(36rem 20rem at 85% -10%, rgba(61, 62, 142, .5), transparent 60%),
    linear-gradient(160deg, #0B1526 0%, #14264B 55%, #1E3A6E 100%);
}
/* Dark section starry shimmer */
#pain, #brand {
  background-image:
    radial-gradient(1px 1px at 10% 15%, rgba(255, 255, 255, .4), transparent),
    radial-gradient(1px 1px at 25% 45%, rgba(255, 255, 255, .3), transparent),
    radial-gradient(1.5px 1.5px at 40% 8%, rgba(255, 255, 255, .35), transparent),
    radial-gradient(1px 1px at 55% 30%, rgba(255, 255, 255, .25), transparent),
    radial-gradient(1px 1px at 70% 55%, rgba(255, 255, 255, .3), transparent),
    radial-gradient(1.5px 1.5px at 85% 25%, rgba(255, 255, 255, .4), transparent),
    radial-gradient(1px 1px at 15% 70%, rgba(255, 255, 255, .2), transparent),
    radial-gradient(1px 1px at 60% 80%, rgba(255, 255, 255, .25), transparent),
    radial-gradient(1px 1px at 90% 70%, rgba(255, 255, 255, .2), transparent),
    linear-gradient(180deg, #0B1526 0%, #0F1C32 40%, #0B1526 100%);
  background-color: #0B1526;
}

/* ---- Stats ---- */
.stat-num {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800; letter-spacing: -.03em; line-height: 1;
  color: var(--ink);
}
#brand .stat-num, .brand-stat .stat-num { color: var(--cloud); }
.stat-label { margin-top: .45rem; font-size: .8rem; font-weight: 600; color: var(--dusk); line-height: 1.45; }
#brand .stat-label { color: var(--fog); }
.brand-stat {
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  padding: 1.35rem 1.25rem;
  background: rgba(246, 248, 251, .03);
  transition: background .25s ease, border-color .25s ease;
}
.brand-stat:hover { background: rgba(246, 248, 251, .06); border-color: rgba(246, 248, 251, .22); }

/* ---- Pain cards (dark surface) ---- */
.pain-card {
  border: 1px solid rgba(246, 248, 251, .08);
  border-radius: var(--r-lg);
  background: rgba(246, 248, 251, .03);
  padding: 2.5rem;
  box-shadow: var(--shadow-dark);
  transition: transform .35s var(--ease-out), background .35s ease, box-shadow .35s ease;
}
.pain-card:hover {
  transform: translateY(-8px);
  background: rgba(246, 248, 251, .06);
  box-shadow: var(--shadow-dark-lift);
}
.pain-icon { width: 3rem; height: 3rem; color: var(--glacier); }
.pain-icon svg { width: 100%; height: 100%; }

/* ---- Zone diagram ---- */
.zone-dot {
  position: absolute; transform: translate(-50%, -50%);
  width: 2.2rem; height: 2.2rem; border-radius: var(--r-pill);
  display: grid; place-items: center; cursor: pointer;
}
.zone-dot span {
  width: .95rem; height: .95rem; border-radius: var(--r-pill);
  background: var(--cobalt); border: 2.5px solid #fff;
  box-shadow: 0 4px 16px rgba(11, 21, 38, .4), 0 0 0 4px rgba(33, 88, 167, .15);
  transition: transform .3s ease, background .3s ease, box-shadow .3s ease;
}
.zone-dot::after {
  content: ""; position: absolute; inset: 0; border-radius: var(--r-pill);
  border: 2px solid rgba(33, 88, 167, .4); animation: pulse 2.4s ease-out infinite;
}
.zone-dot.active span { transform: scale(1.5); background: var(--iris); box-shadow: 0 0 20px rgba(61, 62, 142, .5); }

.zone-card {
  display: flex; gap: 1.25rem; align-items: flex-start; text-align: left;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--paper);
  padding: 1.5rem 1.75rem; cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: all .35s var(--ease-soft);
}
.zone-card:hover { transform: translateX(8px); box-shadow: 0 8px 28px -10px rgba(11, 21, 38, .12); }
.zone-card.active {
  border-color: var(--cobalt);
  background: linear-gradient(120deg, rgba(98, 181, 228, .1), rgba(33, 88, 167, .08));
  box-shadow: 0 16px 44px -18px rgba(33, 88, 167, .4), 0 0 0 1px rgba(33, 88, 167, .15);
}
.zone-no {
  font-size: .8rem; font-weight: 800; color: var(--cobalt);
  border: 1.5px solid rgba(33, 88, 167, .35); border-radius: var(--r-pill);
  padding: .35rem .7rem; flex-shrink: 0; margin-top: .15rem;
}
.zone-desc { margin-top: .4rem; color: var(--dusk); font-size: .95rem; line-height: 1.65; }

/* ---- Tech cards ---- */
.tech-card {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xl);
  background: linear-gradient(150deg, #fff 0%, #F2F6FB 100%);
  padding: 2.75rem;
  box-shadow: var(--shadow-xs), 0 12px 40px -12px rgba(11, 21, 38, .08);
  transition: box-shadow .4s ease, transform .4s var(--ease-out);
}
.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(11, 21, 38, .06), var(--shadow-lift);
}
.tech-badge {
  display: inline-block; border-radius: var(--r-sm); padding: .5rem 1rem;
  background: var(--ink); color: var(--glacier);
  font-weight: 800; letter-spacing: .12em; font-size: .85rem;
}
.tech-badge-alt { background: var(--iris); color: #fff; }

/* Story gallery — full-bleed editorial frames */
#story img { display: block; }
#story .img-frame { border-radius: var(--r-xl); box-shadow: var(--shadow-card); }
.wave-bar { width: 30%; animation: slide 3.2s ease-in-out infinite alternate; }
.eq-bar {
  width: .55rem; border-radius: var(--r-pill); height: var(--h);
  background: linear-gradient(180deg, var(--glacier), var(--iris));
  animation: eq 1.6s ease-in-out infinite alternate;
}
.eq-bar:nth-child(2n) { animation-delay: .25s; }
.eq-bar:nth-child(3n) { animation-delay: .5s; }

/* ---- A/B switch ---- */
.ab-btn { color: var(--dusk); transition: all .3s ease; }
.ab-btn.active { background: var(--ink); color: var(--cloud); box-shadow: 0 10px 28px -14px rgba(11, 21, 38, .55); }
.ab-panel { animation: fadeUp .5s ease both; }
.ab-li { display: flex; align-items: center; gap: .7rem; }
.ab-li::before { content: ""; width: .5rem; height: .5rem; border-radius: var(--r-pill); background: var(--glacier); flex-shrink: 0; }
.ab-render { animation: renderFloat 7s ease-in-out infinite alternate; }
@keyframes renderFloat { from { transform: translateY(-8px); } to { transform: translateY(10px); } }
/* stage backdrops: declarative class-driven crossfade */
.ab-stage img { transition: opacity .9s ease; }
.ab-stage #stage-b { opacity: 0; }
.ab-stage.is-b #stage-a { opacity: 0; }
.ab-stage.is-b #stage-b { opacity: 1; }

/* ---- Material ---- */
.mat-row { display: flex; gap: 1.25rem; }
.mat-icon {
  flex-shrink: 0; width: 3rem; height: 3rem; border-radius: 1rem;
  display: grid; place-items: center; color: var(--cobalt);
  background: linear-gradient(140deg, rgba(98, 181, 228, .2), rgba(61, 62, 142, .14));
  box-shadow: 0 4px 12px rgba(33, 88, 167, .08);
}
.mat-icon svg { width: 1.5rem; height: 1.5rem; }

/* ---- Loft cards ---- */
.loft-card {
  border: 1.5px solid rgba(11, 21, 38, .08);
  border-radius: var(--r-lg);
  background: var(--cloud);
  padding: 2rem 2.25rem; cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: all .35s var(--ease-soft);
}
.loft-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px -12px rgba(11, 21, 38, .12); }
.loft-card.active {
  border-color: var(--cobalt); background: var(--paper);
  box-shadow: 0 18px 50px -20px rgba(33, 88, 167, .4), 0 0 0 1px rgba(33, 88, 167, .12);
}
.loft-check {
  display: grid; place-items: center; width: 1.6rem; height: 1.6rem;
  border-radius: var(--r-pill);
  border: 1.5px solid rgba(11, 21, 38, .2); color: transparent; font-size: .8rem;
  transition: all .3s ease;
}
.loft-card.active .loft-check { background: var(--cobalt); border-color: var(--cobalt); color: #fff; }

/* ---- Specs ---- */
.spec-row {
  display: flex; justify-content: space-between; gap: 2rem;
  padding: 1.2rem 1rem; margin: 0 -1rem;
  border-radius: var(--r-sm);
  transition: background .2s ease;
}
.spec-row:hover { background: rgba(98, 181, 228, .05); }
.spec-row dt { color: var(--dusk); font-weight: 600; }
.spec-row dd { font-weight: 700; text-align: right; color: var(--ink); }

/* Specs image frame */
#specs .img-frame { border-radius: var(--r-xl); box-shadow: var(--shadow-card); }

/* ---- Brand ---- */
.honor-chip {
  border-radius: var(--r-pill);
  border: 1px solid rgba(246, 248, 251, .15);
  padding: .55rem 1.2rem;
  font-size: .8rem; font-weight: 700; color: #c6d3e8;
  background: rgba(246, 248, 251, .04);
  transition: all .3s ease;
}
.honor-chip:hover { background: rgba(246, 248, 251, .1); border-color: rgba(246, 248, 251, .25); color: #fff; }

/* ---- Experience band ---- */
.band-img {
  background-size: cover;
  background-position: center;
  transform: scale(1.15);
  will-change: transform;
}
.band-img::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(11, 21, 38, .3) 100%);
  pointer-events: none;
}
.float-card { transition: transform .5s var(--ease-soft); z-index: 10; }
.float-card:hover { transform: rotate(0deg) scale(1.05); }

/* ---- Nav — homepage glassmorphism treatment ---- */
#nav {
  border-bottom: 1px solid transparent;
  transition: background .4s ease, border-color .4s ease, box-shadow .4s ease;
}
#nav.scrolled {
  background: rgba(246, 248, 251, .88);
  backdrop-filter: blur(18px);
  border-color: var(--line);
  box-shadow: 0 8px 30px -18px rgba(11, 21, 38, .25);
}
.nav-link { position: relative; padding-block: .2rem; }
.nav-link::after {
  content: "";
  position: absolute; top: calc(100% + 4px); right: 0; left: 0;
  height: 2px; border-radius: 2px;
  background: var(--cobalt);
  transform: scaleX(0); transform-origin: left;
  transition: transform .28s ease;
}
.nav-link:hover::after { transform: scaleX(1); }
.lang-btn { color: var(--dusk); transition: all .3s ease; }
.lang-btn.active { background: var(--ink); color: var(--cloud); box-shadow: 0 4px 12px rgba(11, 21, 38, .2); }

/* ---- Reveal on scroll (GSAP-driven, initial state only) ---- */
.reveal { opacity: 0; transform: translateY(30px); }
.reveal.visible { opacity: 1; transform: none; } /* legacy fallback */

/* ---- Footer (unified brand footer) ---- */
footer { position: relative; }
footer::before {
  content: "";
  position: absolute; top: 0; left: 5%; right: 5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(98, 181, 228, .25), rgba(98, 181, 228, .4), rgba(98, 181, 228, .25), transparent);
}
.footer-title {
  font-size: .78rem; font-weight: 800;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--cloud);
}
footer a { transition: color .2s ease; }
footer a:hover { color: #fff; }

/* ---- Custom scrollbar (Webkit) ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--cloud); }
::-webkit-scrollbar-thumb { background: #c6d3e8; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--fog); }

/* ---- Image hover lift ---- */
#specs img, #material img, #heights img, #tech img {
  transition: transform .5s var(--ease-soft), box-shadow .5s ease;
}
#specs img:hover, #material img:hover, #heights img:hover, #tech img:hover {
  transform: scale(1.02);
  box-shadow: 0 24px 60px -20px rgba(11, 21, 38, .25);
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }
.animate-float { animation: float 8s ease-in-out infinite; }

/* ---- GSAP split-text helpers ---- */
/* The gradient lives on .word-inner via background-clip:text, whose background
   only paints inside the padding box — descenders (g/y, ≈.25em beyond the 1.05
   line box) would otherwise render transparent and look "sliced".
   Padding on .word-inner enlarges the paint area; negative margin cancels layout.
   .word keeps overflow:hidden to mask the y:120% entrance. */
.word { display: inline-block; overflow: hidden; vertical-align: top; padding: .2em 0 .28em; margin: -.2em 0 -.28em; }
.word-inner { display: inline-block; padding: .2em 0 .28em; margin: -.2em 0 -.28em; }
@keyframes pulse { 0% { transform: scale(.6); opacity: .9; } 80% { transform: scale(1.7); opacity: 0; } 100% { opacity: 0; } }
@keyframes slide { from { width: 22%; } to { width: 78%; } }
@keyframes eq { from { transform: scaleY(.5); } to { transform: scaleY(1); } }
.eq-bar { transform-origin: bottom; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .animate-float, .float-tag, .zone-dot::after, .wave-bar, .eq-bar, .ab-render, .ab-panel, .sec-index { animation: none; }
  .ab-stage img { transition: none; }
  .btn-primary:hover, .btn-ghost:hover, .btn-light:hover,
  .pain-card:hover, .tech-card:hover, .loft-card:hover { transform: none; }
}