/* =============================================================
   Aire Frío · Refrigeración CGV — hoja de estilos
   1. Tokens
   ============================================================= */
:root {
  --bg:        #eaf4fb;
  --bg-2:      #dcecf8;
  --paper:     #ffffff;
  --glass:     rgba(255, 255, 255, 0.55);
  --glass-2:   rgba(255, 255, 255, 0.35);
  --ink:       #0b2a3c;
  --ink-soft:  #33566b;
  --ink-mute:  #5f7d90;
  --accent:    #0e9de0;   /* azul frío */
  --accent-deep: #0a6ea3;
  --accent-2:  #ff7a3d;   /* naranja del logo CGV */
  --wa:        #22b558;
  --wa-deep:   #1a9147;
  --line:      rgba(11, 42, 60, 0.12);
  --shadow:    0 24px 60px -24px rgba(10, 80, 120, 0.35);

  --font-display: "Outfit", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --radius: 24px;
  --nav-h: 74px;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  text-wrap: balance;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
::selection { background: var(--accent); color: #fff; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--ink); color: #fff;
  z-index: 9999; border-radius: 8px; font-weight: 500;
}
.skip-link:focus { top: 1rem; }

.container {
  width: min(1160px, 100% - 2.5rem);
  margin-inline: auto;
}

/* =============================================================
   3. Nieve (canvas global)
   ============================================================= */
#snow {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 40;
  pointer-events: none;
}

/* =============================================================
   4. Botones
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .78rem 1.5rem;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .95rem;
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out), background .25s var(--ease-soft);
  will-change: transform;
}
.btn-lg { padding: .95rem 1.85rem; font-size: 1.02rem; }
.btn-wa {
  background: linear-gradient(135deg, var(--wa) 0%, var(--wa-deep) 100%);
  color: #fff;
  box-shadow: 0 14px 30px -12px rgba(34, 181, 88, 0.55);
}
.btn-wa:hover { transform: translateY(-3px); box-shadow: 0 20px 40px -14px rgba(34, 181, 88, 0.65); }
.btn-ghost {
  background: rgba(255,255,255,.6);
  border: 1px solid var(--line);
  color: var(--ink);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.btn-ghost:hover { transform: translateY(-3px); background: #fff; box-shadow: var(--shadow); }

.link-accent { color: var(--accent-deep); font-weight: 600; border-bottom: 1.5px solid rgba(14,157,224,.35); transition: border-color .25s; }
.link-accent:hover { border-color: var(--accent); }

/* =============================================================
   5. Nav
   ============================================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .35s var(--ease-soft), box-shadow .35s var(--ease-soft);
}
.nav.is-solid {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  box-shadow: 0 10px 30px -18px rgba(10, 60, 90, 0.35);
}
.nav-inner {
  width: min(1240px, 100% - 2rem);
  margin-inline: auto;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-brand { display: flex; align-items: center; gap: .7rem; margin-right: auto; }
.nav-logo { border-radius: 50%; box-shadow: 0 4px 14px -4px rgba(10,60,90,.4); }
.nav-name { display: flex; flex-direction: column; line-height: 1.15; }
.nav-name strong { font-family: var(--font-display); font-size: 1.02rem; letter-spacing: -0.01em; }
.nav-name small { color: var(--ink-mute); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.nav-links { display: none; gap: 1.6rem; }
.nav-links a {
  font-weight: 500;
  font-size: .93rem;
  color: var(--ink-soft);
  position: relative;
  padding-block: .3rem;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .4s var(--ease-out);
}
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { display: none; }

.nav-burger {
  display: grid;
  place-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,.6);
  border: 1px solid var(--line);
}
.nav-burger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .35s var(--ease-out), opacity .2s;
}
.nav-burger[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:last-child  { transform: translateY(-3.5px) rotate(-45deg); }

.nav.is-open .nav-links {
  display: flex;
  position: absolute;
  top: var(--nav-h);
  left: 0; right: 0;
  flex-direction: column;
  gap: 0;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  padding: .5rem 1.4rem 1.2rem;
}
.nav.is-open .nav-links a { padding: .85rem .2rem; font-size: 1.05rem; border-bottom: 1px solid rgba(11,42,60,.06); }

@media (min-width: 960px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-burger { display: none; }
}

/* =============================================================
   6. Hero
   ============================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding: calc(var(--nav-h) + 3rem) 0 4.5rem;
  overflow: clip;
}
.hero-mesh {
  position: absolute;
  inset: -20%;
  z-index: -1;
  background:
    radial-gradient(38% 42% at 18% 22%, rgba(120, 200, 245, 0.55) 0%, transparent 70%),
    radial-gradient(42% 45% at 85% 12%, rgba(190, 226, 250, 0.9) 0%, transparent 70%),
    radial-gradient(40% 45% at 78% 78%, rgba(90, 175, 230, 0.4) 0%, transparent 70%),
    radial-gradient(35% 40% at 8% 85%, rgba(255, 176, 130, 0.25) 0%, transparent 70%),
    linear-gradient(180deg, #f2f9fe 0%, var(--bg) 60%, var(--bg-2) 100%);
  filter: blur(46px) saturate(120%);
  animation: meshDrift 26s ease-in-out infinite alternate;
}
@keyframes meshDrift {
  0%   { transform: translate3d(-1.5%, -1%, 0) scale(1); }
  100% { transform: translate3d(1.5%, 1.5%, 0) scale(1.06); }
}

.hero-flake {
  position: absolute;
  z-index: -1;
  color: rgba(120, 185, 226, 0.35);
  animation: flakeFloat 12s ease-in-out infinite alternate;
  user-select: none;
}
.hero-flake-a { font-size: clamp(5rem, 10vw, 9rem); top: 12%; right: 6%; }
.hero-flake-b { font-size: clamp(3rem, 6vw, 5.5rem); bottom: 18%; left: 4%; animation-delay: -4s; }
.hero-flake-c { font-size: clamp(2rem, 4vw, 3.5rem); top: 30%; left: 38%; animation-delay: -8s; color: rgba(120,185,226,.22); }
@keyframes flakeFloat {
  from { transform: translateY(-14px) rotate(-8deg); }
  to   { transform: translateY(14px) rotate(10deg); }
}

.hero-inner {
  width: min(1160px, 100% - 2.5rem);
  margin-inline: auto;
  display: grid;
  gap: 3.5rem;
  align-items: center;
}
@media (min-width: 960px) {
  .hero-inner { grid-template-columns: 1.15fr .85fr; }
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-deep);
  background: rgba(255,255,255,.55);
  border: 1px solid rgba(14,157,224,.25);
  padding: .45rem 1rem;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.kicker-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: kickerPulse 2.4s ease-in-out infinite;
}
@keyframes kickerPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(14,157,224,.45); }
  50%      { box-shadow: 0 0 0 7px rgba(14,157,224,0); }
}

.hero-title {
  margin-top: 1.4rem;
  font-size: clamp(2.6rem, 6.2vw, 4.6rem);
  font-weight: 800;
  max-width: 16ch;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(100deg, var(--accent) 10%, #52c1f2 50%, var(--accent-deep) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin-top: 1.4rem;
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 52ch;
}
.hero-actions {
  margin-top: 2.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
}
.hero-chips {
  margin-top: 2rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .55rem 1.4rem;
  font-size: .9rem;
  font-weight: 500;
  color: var(--ink-mute);
}

/* --- Visual A/C --- */
.hero-visual { display: grid; justify-items: center; }
.ac-card {
  position: relative;
  width: min(400px, 100%);
  padding: 2.4rem 2rem 4.5rem;
  border-radius: 32px;
  background: var(--glass);
  border: 1px solid rgba(255,255,255,.75);
  box-shadow: var(--shadow);
}
@supports (backdrop-filter: blur(20px)) {
  .ac-card { backdrop-filter: blur(20px) saturate(160%); -webkit-backdrop-filter: blur(20px) saturate(160%); }
}
.ac-temp {
  display: flex;
  align-items: baseline;
  gap: .2rem;
  margin-bottom: 1.6rem;
  font-family: var(--font-display);
}
.ac-temp-num { font-size: 3.2rem; font-weight: 800; letter-spacing: -0.03em; }
.ac-temp-deg { font-size: 1.5rem; font-weight: 600; color: var(--ink-mute); }
.ac-temp-mode {
  margin-left: auto;
  font-size: .82rem;
  font-weight: 600;
  color: var(--accent-deep);
  background: rgba(14,157,224,.12);
  padding: .35rem .85rem;
  border-radius: 999px;
}
.ac-unit { width: 100%; filter: drop-shadow(0 18px 24px rgba(10, 80, 120, 0.18)); }

.ac-air {
  position: absolute;
  left: 14%;
  bottom: 2.1rem;
  width: 72%;
  display: grid;
  gap: 9px;
}
.air-line {
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, transparent, rgba(14,157,224,.65), transparent);
  animation: airFlow 2.6s var(--ease-soft) infinite;
  opacity: 0;
}
.air-line:nth-child(2) { animation-delay: .45s; width: 84%; margin-inline: auto; }
.air-line:nth-child(3) { animation-delay: .9s; width: 66%; margin-inline: auto; }
@keyframes airFlow {
  0%   { transform: translateY(-6px) scaleX(.6); opacity: 0; }
  35%  { opacity: 1; }
  100% { transform: translateY(16px) scaleX(1.05); opacity: 0; }
}

.ac-flakes { position: absolute; inset: auto 12% 0.4rem; height: 3.4rem; pointer-events: none; }
.ac-flakes span {
  position: absolute;
  top: 0;
  color: var(--accent);
  opacity: 0;
  font-size: .8rem;
  animation: flakeFall 3.4s linear infinite;
}
.ac-flakes span:nth-child(1) { left: 8%;  animation-delay: 0s; }
.ac-flakes span:nth-child(2) { left: 30%; animation-delay: .9s; font-size: .65rem; }
.ac-flakes span:nth-child(3) { left: 52%; animation-delay: 1.7s; }
.ac-flakes span:nth-child(4) { left: 72%; animation-delay: 2.4s; font-size: .6rem; }
.ac-flakes span:nth-child(5) { left: 90%; animation-delay: 1.3s; }
@keyframes flakeFall {
  0%   { transform: translateY(-4px) rotate(0deg); opacity: 0; }
  25%  { opacity: .85; }
  100% { transform: translateY(2.6rem) rotate(120deg); opacity: 0; }
}

.hero-fade {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 90px;
  background: linear-gradient(180deg, transparent, var(--bg));
  pointer-events: none;
}

/* =============================================================
   7. Marquee
   ============================================================= */
.marquee {
  overflow: clip;
  border-block: 1px solid var(--line);
  background: rgba(255,255,255,.45);
  padding: .85rem 0;
}
.marquee-track {
  display: flex;
  white-space: nowrap;
  width: max-content;
  animation: marqueeMove 36s linear infinite;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: .95rem;
  letter-spacing: .06em;
  color: var(--ink-mute);
}
@keyframes marqueeMove {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* =============================================================
   8. Secciones
   ============================================================= */
.section { position: relative; padding: 6.5rem 0; }
.section-alt {
  background:
    radial-gradient(50% 60% at 85% 10%, rgba(120, 200, 245, 0.28) 0%, transparent 70%),
    linear-gradient(180deg, var(--bg-2), var(--bg));
}
.section-kicker {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent-deep);
}
.section-title {
  margin-top: .9rem;
  font-size: clamp(2rem, 4.6vw, 3.3rem);
  font-weight: 800;
  max-width: 22ch;
}
.section-title em {
  font-style: normal;
  background: linear-gradient(100deg, var(--accent) 10%, #52c1f2 55%, var(--accent-deep) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section-sub {
  margin-top: 1.1rem;
  color: var(--ink-soft);
  max-width: 58ch;
  font-size: 1.05rem;
}

/* --- Glass base --- */
.glass {
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(255,255,255,.8);
  border-radius: var(--radius);
  box-shadow: 0 18px 44px -26px rgba(10, 80, 120, 0.4);
}
@supports (backdrop-filter: blur(18px)) {
  .glass {
    background: var(--glass);
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
  }
}

/* --- Servicios --- */
.grid-services {
  margin-top: 3.2rem;
  display: grid;
  gap: 1.3rem;
}
@media (min-width: 720px)  { .grid-services { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-services { grid-template-columns: repeat(3, 1fr); } }

.card {
  position: relative;
  padding: 2rem 1.7rem 2.1rem;
  transition: transform .45s var(--ease-out), box-shadow .45s var(--ease-out);
  transform-style: preserve-3d;
}
.card:hover {
  box-shadow: 0 30px 60px -28px rgba(10, 80, 120, 0.5);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(220px circle at var(--hx, 50%) var(--hy, 0%), rgba(14,157,224,.14), transparent 65%);
  opacity: 0;
  transition: opacity .4s var(--ease-soft);
  pointer-events: none;
}
.card:hover::before { opacity: 1; }
.card-icon {
  width: 58px; height: 58px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: var(--accent-deep);
  background: linear-gradient(145deg, rgba(140, 210, 248, 0.35), rgba(14, 157, 224, 0.16));
  border: 1px solid rgba(14,157,224,.22);
  margin-bottom: 1.3rem;
}
.card-icon svg { width: 30px; height: 30px; }
.card h3 {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: .6rem;
  max-width: 18ch;
}
.card p { color: var(--ink-soft); font-size: .95rem; }

/* --- Pasos --- */
.grid-steps {
  margin-top: 3.2rem;
  display: grid;
  gap: 1.3rem;
}
@media (min-width: 720px) { .grid-steps { grid-template-columns: repeat(3, 1fr); } }
.step { padding: 2.1rem 1.8rem; }
.step-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.6rem;
  letter-spacing: -0.04em;
  background: linear-gradient(160deg, var(--accent) 0%, #79cdf4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.step h3 { margin-top: .7rem; font-size: 1.15rem; }
.step p { margin-top: .55rem; color: var(--ink-soft); font-size: .95rem; }

.quote {
  margin-top: 4rem;
  text-align: center;
}
.quote p {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.8vw, 1.9rem);
  font-weight: 600;
  max-width: 30ch;
  margin-inline: auto;
}
.quote em { color: var(--accent-deep); font-style: normal; }
.quote cite {
  display: block;
  margin-top: 1rem;
  font-style: normal;
  font-size: .88rem;
  color: var(--ink-mute);
}

/* --- Galería --- */
.grid-gallery {
  margin-top: 3.2rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 720px)  { .grid-gallery { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .grid-gallery { grid-template-columns: repeat(4, 1fr); } }

.shot {
  position: relative;
  border-radius: 20px;
  overflow: clip;
  aspect-ratio: 1;
  box-shadow: 0 14px 34px -20px rgba(10, 80, 120, 0.45);
}
.shot img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease-out), filter .6s var(--ease-out);
}
.shot:hover img { transform: scale(1.07); filter: saturate(1.12) brightness(1.04); }
.shot-overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 2.2rem .95rem .85rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .85rem;
  color: #fff;
  background: linear-gradient(180deg, transparent, rgba(8, 35, 52, 0.75));
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .4s var(--ease-out), transform .4s var(--ease-out);
}
.shot:hover .shot-overlay { opacity: 1; transform: translateY(0); }

/* --- Contacto --- */
.section-contact { padding-bottom: 7.5rem; }
.contact-mesh {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(45% 55% at 15% 80%, rgba(120, 200, 245, 0.4) 0%, transparent 70%),
    radial-gradient(40% 50% at 88% 20%, rgba(255, 176, 130, 0.22) 0%, transparent 70%);
  filter: blur(40px);
}
.contact-card {
  display: grid;
  gap: 2.5rem;
  padding: clamp(1.8rem, 4vw, 3.4rem);
}
@media (min-width: 960px) {
  .contact-card { grid-template-columns: 1.1fr .9fr; align-items: center; }
}
.contact-copy .btn { margin-top: 1.8rem; }
.contact-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}
.contact-list li {
  display: grid;
  gap: .15rem;
  padding: 1rem 1.2rem;
  border-radius: 16px;
  background: rgba(255,255,255,.55);
  border: 1px solid rgba(255,255,255,.8);
}
.contact-label {
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.contact-list a {
  font-weight: 600;
  color: var(--ink);
  transition: color .25s;
  overflow-wrap: anywhere;
}
.contact-list a:hover { color: var(--accent-deep); }

/* =============================================================
   9. Footer
   ============================================================= */
.footer {
  background:
    radial-gradient(60% 90% at 80% -10%, rgba(14, 157, 224, 0.25) 0%, transparent 60%),
    linear-gradient(180deg, #0d2b3f 0%, #081c2b 100%);
  color: #d7e9f5;
  padding: 4rem 0 2.5rem;
}
.footer-inner { display: grid; gap: 2.2rem; }
.footer-brand { display: flex; gap: 1rem; align-items: flex-start; }
.footer-brand img { border-radius: 50%; }
.footer-brand strong { font-family: var(--font-display); font-size: 1.08rem; }
.footer-brand p { margin-top: .4rem; font-size: .9rem; color: rgba(215, 233, 245, 0.65); }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.4rem; font-size: .92rem; }
.footer-links a { color: rgba(215, 233, 245, 0.8); transition: color .25s; }
.footer-links a:hover { color: #fff; }
.footer-note { font-size: .82rem; color: rgba(215, 233, 245, 0.45); }
@media (min-width: 960px) {
  .footer-inner { grid-template-columns: 1.2fr auto; align-items: center; }
  .footer-note { grid-column: 1 / -1; border-top: 1px solid rgba(215,233,245,.12); padding-top: 1.6rem; }
}

/* =============================================================
   10. Reveals (defensivo: JS solo mejora)
   ============================================================= */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }
/* Defensa obligatoria: elementos con split nunca quedan invisibles */
.reveal[data-split] { opacity: 1; transform: none; }
/* Sin JS, todo visible */
html.no-js .reveal { opacity: 1; transform: none; }

/* =============================================================
   11. Reduced motion (solo efectos intrusivos)
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .hero-mesh { animation: none; }
  .hero-flake { animation: none; }
  .marquee-track { animation-duration: 80s; }
  .ac-flakes span { animation: none; opacity: 0; }
}