/* ============================================================
   ONYX STUDIO PRO — Landing Page
   Dark luxury · #000 / #121212 · prata metálico + ciano neon
   ============================================================ */

:root {
  --bg: #000000;
  --surface: #121212;
  --surface-2: #17181b;
  --card: rgba(255, 255, 255, 0.03);
  --card-2: rgba(255, 255, 255, 0.05);
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);

  --cyan: #00e5ff;
  --cyan-dim: #0b7fd4;
  --cyan-soft: #aef2ff;
  --cyan-glow: rgba(0, 229, 255, 0.45);

  --silver-hi: #f6f8fb;
  --silver: #cfd6de;
  --silver-mid: #8b939d;
  --silver-low: #4b5057;

  --text: #eef2f6;
  --muted: #9aa4af;
  --faint: #6b747d;

  --radius: 20px;
  --radius-lg: 28px;

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

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container {
  width: min(1180px, 92%);
  margin-inline: auto;
}

::selection { background: rgba(0, 229, 255, 0.28); color: #fff; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #060708; }
::-webkit-scrollbar-thumb { background: linear-gradient(#26292d, #191b1e); border-radius: 8px; border: 2px solid #060708; }
::-webkit-scrollbar-thumb:hover { background: #3a3f45; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.25s ease, box-shadow 0.3s ease,
    background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
  white-space: nowrap;
}
.btn svg { width: 19px; height: 19px; flex: none; }

.btn-primary {
  color: #02181c;
  background: linear-gradient(135deg, #6ef2ff 0%, var(--cyan) 45%, #19b7e6 100%);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.25) inset,
    0 0 22px rgba(0, 229, 255, 0.35), 0 12px 40px -14px rgba(0, 229, 255, 0.55);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.5) inset,
    0 0 34px rgba(0, 229, 255, 0.6), 0 18px 50px -12px rgba(0, 229, 255, 0.7);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  color: var(--silver-hi);
  background: rgba(255, 255, 255, 0.02);
  border-color: var(--line-2);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover {
  border-color: rgba(0, 229, 255, 0.55);
  color: #fff;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.18);
  background: rgba(0, 229, 255, 0.05);
  transform: translateY(-2px);
}

.btn-lg { padding: 17px 34px; font-size: 1.05rem; }
.btn-sm { padding: 9px 20px; font-size: 0.86rem; }
.btn-block { width: 100%; }

/* ---------- Announcement bar ---------- */
.announce {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 9px 16px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: #dbe2ea;
  background:
    radial-gradient(120% 200% at 50% -40%, rgba(0, 229, 255, 0.14), transparent 60%),
    #0a0c0e;
  border-bottom: 1px solid var(--line);
  text-transform: uppercase;
}
.announce strong {
  color: #fff;
  background: linear-gradient(90deg, #bdf6ff, #7fe0f5);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.announce .sep { color: var(--faint); }

.pulse-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan-glow);
  display: inline-block;
  position: relative;
}
.pulse-dot::after {
  content: "";
  position: absolute; inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--cyan-glow);
  animation: ping 1.8s cubic-bezier(0, 0, 0.2, 1) infinite;
}
@keyframes ping { 0% { transform: scale(0.6); opacity: 1; } 80%, 100% { transform: scale(1.5); opacity: 0; } }

/* ---------- Navbar ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px max(4vw, 24px);
  transition: background 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(4, 5, 6, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}

.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 11px;
  background:
    radial-gradient(circle at 50% 42%, rgba(0, 229, 255, 0.55), rgba(0, 229, 255, 0) 62%),
    linear-gradient(#101216, #07080a);
  border: 1px solid rgba(0, 229, 255, 0.4);
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.25), inset 0 0 10px rgba(0, 0, 0, 0.6);
  position: relative;
}
.brand-mark::before, .brand-mark::after {
  content: "";
  position: absolute;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
}
.brand-mark::before { left: 8px; top: 12px; }
.brand-mark::after { right: 8px; top: 12px; }

.brand-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.22rem;
  letter-spacing: 0.14em;
  color: #fff;
  line-height: 1;
  display: flex;
  flex-direction: column;
}
.brand-text span {
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.42em;
  color: var(--cyan-soft);
  margin-top: 3px;
  opacity: 0.9;
}

.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a {
  position: relative;
  font-size: 0.92rem;
  color: var(--muted);
  transition: color 0.25s ease;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 100%; height: 1.5px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-burger span {
  width: 22px; height: 2px;
  background: #cfd6de;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(56px, 8vw, 96px) 0 0;
  background:
    radial-gradient(90% 70% at 78% 12%, rgba(0, 229, 255, 0.08), transparent 55%),
    radial-gradient(70% 55% at 8% 88%, rgba(30, 60, 80, 0.5), transparent 60%),
    #000;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5; }
.orb-a {
  width: 520px; height: 520px;
  right: -140px; top: -160px;
  background: rgba(0, 229, 255, 0.16);
}
.orb-b {
  width: 460px; height: 460px;
  left: -200px; bottom: -120px;
  background: rgba(120, 150, 180, 0.12);
}
.grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(70% 70% at 50% 30%, #000 10%, transparent 75%);
  mask-image: radial-gradient(70% 70% at 50% 30%, #000 10%, transparent 75%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(28px, 5vw, 60px);
}

.hero-copy { position: relative; z-index: 2; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-soft);
  border: 1px solid rgba(0, 229, 255, 0.35);
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.1), rgba(0, 229, 255, 0.02));
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.12), inset 0 0 18px rgba(0, 229, 255, 0.04);
  margin-bottom: 26px;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.7rem, 6.2vw, 4.9rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.grad-metal {
  background: linear-gradient(180deg, #ffffff 0%, #d7dde4 34%, #8d95a0 58%, #e9edf3 78%, #9aa3af 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  position: relative;
}
.grad-metal.cyan-edge {
  background: linear-gradient(180deg, #ffffff 0%, #cfeef6 40%, #53d6ee 60%, #00e5ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.lead {
  font-size: clamp(1.02rem, 1.4vw, 1.16rem);
  color: var(--muted);
  max-width: 54ch;
  margin-bottom: 34px;
}
.lead strong { color: #fff; font-weight: 600; }

.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 34px; }

.hero-proof {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.92rem;
  color: var(--muted);
}
.hero-proof strong { color: var(--text); }

/* stars */
.stars {
  display: inline-flex;
  gap: 2px;
  color: #35e4ff;
  filter: drop-shadow(0 0 6px rgba(0, 229, 255, 0.5));
}
.stars svg { width: 15px; height: 15px; }

/* ---------- Hero visual / product ---------- */
.hero-visual { position: relative; display: flex; justify-content: center; }
.product-stage {
  position: relative;
  width: 100%;
  max-width: 540px;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.halo {
  position: absolute;
  inset: 6% 2%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.16), rgba(0, 229, 255, 0.04) 48%, transparent 70%);
  filter: blur(6px);
}
.product-stage > img {
  width: 92%;
  height: auto;
  animation: float 6s ease-in-out infinite;
  filter: drop-shadow(0 40px 60px rgba(0, 0, 0, 0.55));
  position: relative;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

.chip {
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  padding: 10px 15px 10px 10px;
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(26, 28, 32, 0.92), rgba(10, 12, 14, 0.88));
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 16px 34px -12px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
  backdrop-filter: blur(10px);
  animation: float 5.4s ease-in-out infinite;
}
.chip b {
  display: block;
  font-family: var(--font-display);
  font-size: 0.94rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1.15;
}
.chip > span:last-child {
  font-size: 0.62rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  display: block;
}
.chip-ico {
  width: 38px; height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.28);
  color: var(--cyan);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.15) inset;
}
.chip-ico svg { width: 20px; height: 20px; }

.chip-tl { top: 8%; left: -2%; animation-delay: 0.4s; }
.chip-tr { top: 2%; right: -3%; animation-delay: 1.1s; }
.chip-b { bottom: 10%; right: 0; animation-delay: 0.7s; }

/* ---------- Ticker ---------- */
.ticker {
  position: relative;
  margin-top: clamp(40px, 6vw, 70px);
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.02) 30%, rgba(255, 255, 255, 0.02) 70%, transparent);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ticker-track {
  display: flex;
  align-items: center;
  gap: 34px;
  width: max-content;
  animation: ticker 32s linear infinite;
}
.ticker-track span {
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #b6bec7;
  white-space: nowrap;
}
.ticker-track i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
  flex: none;
}
@keyframes ticker { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 10vw, 120px) 0; position: relative; scroll-margin-top: 70px; }
#top { scroll-margin-top: 0; }
.section:nth-of-type(even) { background: var(--surface); }

.section-head { text-align: center; max-width: 700px; margin: 0 auto clamp(40px, 6vw, 66px); }
.kicker {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
  text-shadow: 0 0 14px rgba(0, 229, 255, 0.5);
}
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 3.8vw, 3rem);
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-bottom: 16px;
}
.section-head p { color: var(--muted); font-size: 1.02rem; }

/* ---------- Cards / glassmorphism ---------- */
.card {
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
}

/* ---------- Feature grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature {
  padding: 30px 26px 26px;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.feature::after {
  content: "";
  position: absolute;
  width: 190px; height: 190px;
  border-radius: 50%;
  right: -90px; top: -90px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.16), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.feature:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 229, 255, 0.4);
  box-shadow: 0 26px 50px -22px rgba(0, 0, 0, 0.9), 0 0 32px -6px rgba(0, 229, 255, 0.22);
}
.feature:hover::after { opacity: 1; }

.feature-ico {
  width: 56px; height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  color: var(--cyan);
  background: linear-gradient(160deg, rgba(0, 229, 255, 0.16), rgba(0, 229, 255, 0.03));
  border: 1px solid rgba(0, 229, 255, 0.3);
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.12), inset 0 0 16px rgba(0, 229, 255, 0.06);
  transition: transform 0.35s ease;
}
.feature-ico svg { width: 26px; height: 26px; }
.feature:hover .feature-ico { transform: scale(1.07) rotate(-3deg); }

.feature h3 {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.feature p { color: var(--muted); font-size: 0.92rem; margin-bottom: 18px; }

.feature-tag {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan-soft);
  padding: 5px 10px;
  border-radius: 7px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.22);
}

/* ---------- ANC experience lab ---------- */
.section-experience {
  background:
    radial-gradient(80% 90% at 50% -10%, rgba(0, 229, 255, 0.05), transparent 60%),
    var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.anc-lab { position: relative; }

.scene {
  position: relative;
  max-width: 860px;
  margin-inline: auto;
  border-radius: 30px;
  overflow: hidden;
  background: #050607;
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, 0.9), inset 0 0 90px rgba(0, 0, 0, 0.5);
  transition: border-color 0.6s ease, box-shadow 0.6s ease;
}
.anc-lab.calm .scene {
  border-color: rgba(0, 229, 255, 0.28);
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, 0.9), 0 0 60px -10px rgba(0, 229, 255, 0.28),
    inset 0 0 90px rgba(0, 0, 0, 0.4);
}

.scene-scroll {
  position: absolute; inset: 0;
  border-radius: 30px;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  z-index: 5;
}

/* noise layer */
.scene-noise {
  position: absolute; inset: 0;
  opacity: 1;
  transition: opacity 0.8s ease;
  background:
    radial-gradient(120% 100% at 85% -10%, rgba(120, 60, 30, 0.16), transparent 55%),
    radial-gradient(100% 100% at 10% 110%, rgba(60, 70, 90, 0.3), transparent 55%),
    #0b0d10;
}
.city-skyline {
  position: absolute; inset: auto 0 0 0;
  height: 46%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.1) 2px, transparent 2px),
    repeating-linear-gradient(90deg,
      rgba(120, 130, 150, 0.5) 0 30px, transparent 30px 44px,
      rgba(140, 150, 170, 0.35) 44px 60px, transparent 60px 78px,
      rgba(110, 120, 140, 0.55) 78px 96px, transparent 96px 118px);
  background-size: 100% 34px, auto;
  background-position: bottom;
  background-repeat: repeat-x, repeat;
  opacity: 0.85;
  -webkit-mask-image: linear-gradient(transparent, #000 40%);
  mask-image: linear-gradient(transparent, #000 40%);
}
.city-layers::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1.6px);
  background-size: 56px 90px, auto;
  opacity: 0.5;
  animation: noiseShift 0.5s steps(2) infinite;
}
@keyframes noiseShift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-1px, 1px); }
  50% { transform: translate(1px, -1px); }
  75% { transform: translate(-1px, -1px); }
  100% { transform: translate(0, 0); }
}
.noise-tag {
  position: absolute;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  padding: 5px 10px;
  border-radius: 6px;
  color: rgba(230, 235, 240, 0.7);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  animation: floatTag 3s ease-in-out infinite;
}
.n1 { top: 20%; left: 8%; animation-delay: 0s; }
.n2 { top: 30%; right: 9%; animation-delay: 1.1s; }
.n3 { bottom: 38%; left: 16%; animation-delay: 0.5s; }
.n4 { bottom: 34%; right: 18%; animation-delay: 1.7s; }
@keyframes floatTag {
  0%, 100% { transform: translateY(0); opacity: 0.75; }
  50% { transform: translateY(-6px); opacity: 1; }
}

/* calm layer */
.scene-calm {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity 0.9s ease;
  background:
    radial-gradient(70% 80% at 50% 120%, rgba(0, 229, 255, 0.05), transparent 60%),
    linear-gradient(180deg, #020304, #07090b);
}
.calm-aura {
  position: absolute;
  width: 340px; height: 340px;
  border-radius: 50%;
  left: 50%; top: 52%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 229, 255, 0.14), rgba(0, 229, 255, 0.03) 55%, transparent 72%);
  filter: blur(4px);
  animation: breath 5s ease-in-out infinite;
}
@keyframes breath {
  0%, 100% { transform: translate(-50%, -50%) scale(0.94); opacity: 0.75; }
  50% { transform: translate(-50%, -50%) scale(1.08); opacity: 1; }
}
.calm-note {
  position: absolute;
  left: 50%; bottom: 12%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: rgba(0, 229, 255, 0.85);
  text-shadow: 0 0 18px rgba(0, 229, 255, 0.4);
  white-space: nowrap;
}
.anc-lab.calm .scene-noise { opacity: 0; }
.anc-lab.calm .scene-calm { opacity: 1; }

/* EQ canvas area */
.eq {
  position: absolute;
  inset: 0 0 118px 0;
}
.eq canvas {
  width: 100%; height: 100%;
  display: block;
}

/* scene UI bar */
.scene-ui {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 22px 26px;
  background: linear-gradient(180deg, transparent, rgba(4, 5, 7, 0.85) 38%);
  z-index: 6;
}
.scene-label {
  display: flex;
  flex-direction: column;
  min-width: 118px;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.scene-label .lbl-kicker {
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 3px;
}
.scene-label strong { font-family: var(--font-display); font-size: 0.9rem; font-weight: 600; color: #d9dee4; }
.scene-label .lbl-kicker { color: #f2706a; text-shadow: 0 0 12px rgba(255, 90, 84, 0.4); }
#labelNoise { text-align: left; align-items: flex-start; }
#labelAnc { text-align: right; align-items: flex-end; }
#labelAnc .lbl-kicker { color: var(--cyan); text-shadow: 0 0 14px var(--cyan-glow); }

.anc-lab.noisy #labelAnc { opacity: 0.18; filter: grayscale(0.6); }
.anc-lab.calm #labelNoise { opacity: 0.18; filter: grayscale(0.6); }
.anc-lab.noisy #labelNoise, .anc-lab.calm #labelAnc { opacity: 1; filter: none; }
.anc-lab.calm #labelNoise .lbl-kicker { color: #f2706a; text-shadow: 0 0 12px rgba(255, 90, 84, 0.4); }

/* ANC switch button */
.anc-switch {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  padding: 9px 16px 9px 9px;
  border-radius: 999px;
  background: linear-gradient(165deg, rgba(24, 26, 30, 0.92), rgba(10, 12, 15, 0.92));
  border: 1px solid rgba(255, 255, 255, 0.14);
  transition: border-color 0.35s ease, box-shadow 0.35s ease, transform 0.2s ease;
}
.anc-switch:hover { transform: translateY(-1px); border-color: rgba(0, 229, 255, 0.4); }
.anc-lab.calm .anc-switch {
  border-color: rgba(0, 229, 255, 0.6);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.3);
}
.anc-track {
  position: relative;
  width: 52px; height: 30px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
  flex: none;
}
.anc-thumb {
  position: absolute;
  left: 3px; top: 3px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(160deg, #7d858e, #2c3136);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.35s ease;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.5);
}
.anc-lab.calm .anc-track {
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.9), #19b7e6);
  border-color: rgba(0, 229, 255, 0.8);
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.45);
}
.anc-lab.calm .anc-thumb {
  transform: translateX(22px);
  background: #fff;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.8);
}
.anc-ico {
  width: 26px; height: 26px;
  border-radius: 50%;
  display: grid; place-items: center;
  color: #b9c1ca;
  transition: color 0.35s ease;
}
.anc-ico svg { width: 18px; height: 18px; }
.anc-lab.calm .anc-ico { color: var(--cyan); filter: drop-shadow(0 0 8px var(--cyan-glow)); }
.anc-text { text-align: left; line-height: 1.2; }
.anc-text b {
  display: block;
  font-family: var(--font-display);
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.18em;
}
.anc-text {
  display: block;
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

/* sound toggle */
.sound-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid; place-items: center;
  color: #9aa4af;
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, 0.03);
  transition: color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.sound-toggle svg { width: 18px; height: 18px; }
.sound-toggle:hover { color: #fff; border-color: rgba(0, 229, 255, 0.4); }
.sound-toggle.playing {
  color: var(--cyan);
  border-color: rgba(0, 229, 255, 0.6);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.35);
  animation: soundPulse 1.6s ease-in-out infinite;
}
@keyframes soundPulse {
  0%, 100% { box-shadow: 0 0 6px rgba(0, 229, 255, 0.2); }
  50% { box-shadow: 0 0 20px rgba(0, 229, 255, 0.5); }
}

.anc-caption {
  text-align: center;
  margin-top: 22px;
  color: var(--muted);
  font-size: 0.95rem;
}
.anc-caption strong { color: var(--cyan); font-family: var(--font-display); letter-spacing: 0.14em; }

/* ---------- Reviews ---------- */
.reviews {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.review { padding: 28px; display: flex; flex-direction: column; gap: 18px; transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease; }
.review:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 255, 0.32);
  box-shadow: 0 26px 50px -24px rgba(0, 0, 0, 0.9), 0 0 30px -8px rgba(0, 229, 255, 0.2);
}
.review-top { display: flex; align-items: center; gap: 14px; }
.review-who strong { display: block; font-size: 1rem; font-family: var(--font-display); }
.review-who span { font-size: 0.8rem; color: var(--faint); }
.avatar {
  width: 50px; height: 50px;
  border-radius: 50%;
  flex: none;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.22);
  position: relative;
}
.avatar::after {
  content: "";
  position: absolute; inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 255, 0.25);
}
.av-a { background: linear-gradient(160deg, #4a6f8f, #22303e); }
.av-b { background: linear-gradient(160deg, #5f6f86, #262c36); }
.av-c { background: linear-gradient(160deg, #38707f, #1c3b45); }
.review blockquote {
  font-size: 0.98rem;
  color: #cdd4dc;
  line-height: 1.7;
  flex: 1;
  position: relative;
  padding-left: 18px;
  border-left: 2px solid rgba(0, 229, 255, 0.28);
}
.review-verified {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.76rem;
  color: var(--cyan-soft);
  opacity: 0.85;
}
.review-verified svg { width: 15px; height: 15px; }

/* ---------- Offer ---------- */
.section-offer {
  background:
    radial-gradient(80% 90% at 50% 0%, rgba(0, 229, 255, 0.06), transparent 55%),
    #000;
}
.offer-wrap { position: relative; }
.offer-glow {
  position: absolute;
  width: 70%; height: 70%;
  left: 15%; top: 15%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.09), transparent 68%);
  filter: blur(40px);
  pointer-events: none;
}

.offer-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(20px, 4vw, 54px);
  padding: clamp(10px, 3vw, 30px);
  overflow: hidden;
  box-shadow: 0 50px 120px -40px rgba(0, 0, 0, 0.95);
  border-color: rgba(255, 255, 255, 0.1);
}

.offer-media {
  position: relative;
  border-radius: 24px;
  background:
    radial-gradient(90% 90% at 50% 42%, rgba(0, 229, 255, 0.12), transparent 62%),
    linear-gradient(170deg, #15171b, #0a0b0d);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  overflow: hidden;
  padding: 24px;
}
.offer-media > img { width: min(78%, 330px); height: auto; animation: float 6s ease-in-out infinite; filter: drop-shadow(0 34px 44px rgba(0, 0, 0, 0.6)); }
.offer-halo {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 46%, rgba(0, 229, 255, 0.14), transparent 55%);
}
.offer-discount {
  position: absolute;
  top: 18px; left: 18px;
  z-index: 2;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: #02181c;
  background: linear-gradient(135deg, #6ef2ff, var(--cyan));
  padding: 8px 14px;
  border-radius: 12px;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.5);
}
.offer-chip {
  position: absolute;
  top: 18px; right: 18px;
  z-index: 2;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #e8edf2;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(6px);
}
.offer-stock {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: #ffd9a6;
  background: rgba(60, 30, 8, 0.4);
  border: 1px solid rgba(255, 170, 80, 0.28);
  padding: 7px 14px;
  border-radius: 999px;
  white-space: nowrap;
  backdrop-filter: blur(6px);
}
.stock-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #ffb45e;
  box-shadow: 0 0 10px rgba(255, 170, 80, 0.9);
  animation: blink 1.2s ease-in-out infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.offer-body { padding: clamp(12px, 3vw, 26px) 0; }
.offer-body h3 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.review-mini { display: flex; align-items: center; gap: 10px; margin: 10px 0 4px; font-size: 0.85rem; color: var(--muted); }
.review-mini .stars svg { width: 13px; height: 13px; }

.offer-desc { color: var(--muted); margin: 14px 0 20px; max-width: 50ch; }

.price-block {
  padding: 20px 22px;
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(0, 229, 255, 0.06), rgba(0, 229, 255, 0.01));
  border: 1px solid rgba(0, 229, 255, 0.2);
  margin-bottom: 20px;
}
.price-old { color: var(--muted); font-size: 0.95rem; }
.price-old s { color: var(--faint); }
.price-now {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 2.7rem);
  line-height: 1;
  letter-spacing: -0.01em;
  margin: 4px 0 6px;
  color: #fff;
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.price-now b {
  background: linear-gradient(180deg, #ffffff, #9adff0 70%, #45c7e2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 40px rgba(0, 229, 255, 0.35);
}
.price-pix {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan);
  font-family: var(--font-body);
}
.price-install { font-size: 0.9rem; color: var(--muted); }
.price-install strong { color: #e8edf2; }

/* countdown */
.countdown {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px dashed rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.02);
}
.cd-label { font-size: 0.82rem; color: var(--muted); }
.cd-boxes { display: flex; gap: 10px; }
.cd-boxes span { display: flex; align-items: center; gap: 6px; font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--faint); }
.cd-boxes b {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  background: #1a1d21;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 5px 10px;
  border-radius: 9px;
  min-width: 40px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.offer-includes { list-style: none; display: grid; gap: 9px; margin-bottom: 24px; }
.offer-includes li { display: flex; align-items: center; gap: 11px; font-size: 0.92rem; color: #c8cfd7; }
.offer-includes svg { width: 17px; height: 17px; color: var(--cyan); filter: drop-shadow(0 0 6px rgba(0, 229, 255, 0.5)); flex: none; }

.offer-trust { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 18px; }
.offer-trust span { display: inline-flex; align-items: center; gap: 8px; font-size: 0.78rem; color: var(--muted); }
.offer-trust svg { width: 15px; height: 15px; color: var(--cyan-soft); }

/* ---------- Footer ---------- */
.footer {
  background: #060708;
  border-top: 1px solid var(--line);
  padding: clamp(50px, 8vw, 80px) 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 0.8fr 0.8fr 1.2fr;
  gap: 44px;
  margin-bottom: 50px;
}
.footer-brand p { color: var(--muted); font-size: 0.92rem; max-width: 34ch; margin: 18px 0 22px; }
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: #e6ebf0;
  margin-bottom: 20px;
}
.footer-col a {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  padding: 6px 0;
  transition: color 0.25s ease, transform 0.25s ease;
}
.footer-col a:hover { color: var(--cyan-soft); transform: translateX(3px); }

.footer-guarantees { list-style: none; display: grid; gap: 14px; }
.footer-guarantees li {
  display: flex; align-items: flex-start; gap: 11px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
}
.footer-guarantees svg { width: 18px; height: 18px; color: var(--cyan); flex: none; margin-top: 2px; }

.pay-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.pay {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  color: #c3cad2;
  background: #17191d;
  border: 1px solid var(--line-2);
  padding: 6px 11px;
  border-radius: 7px;
}
.pay.pix {
  color: #37f2dc;
  border-color: rgba(0, 229, 200, 0.4);
  box-shadow: 0 0 14px rgba(0, 229, 200, 0.15);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--faint);
}
.footer-legals { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.footer-legals i { width: 3px; height: 3px; border-radius: 50%; background: var(--faint); }
.footer-legals a:hover { color: var(--muted); }

/* ---------- Modal ---------- */
.modal {
  position: fixed; inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.modal.open { visibility: visible; opacity: 1; }
.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(10px);
}
.modal-panel {
  position: relative;
  width: min(520px, 100%);
  max-height: 92vh;
  overflow-y: auto;
  background: linear-gradient(170deg, #17191d, #0d0f11);
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: 24px;
  box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.95), 0 0 60px -20px rgba(0, 229, 255, 0.3);
  padding: 30px 28px 26px;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.modal.open .modal-panel { transform: translateY(0) scale(1); }
.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 34px; height: 34px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 1.3rem;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  transition: color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.modal-close:hover { color: #fff; border-color: rgba(0, 229, 255, 0.5); transform: rotate(90deg); }

.co-step-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
}
.co-step {
  flex: 1;
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  position: relative;
  padding-bottom: 12px;
}
.co-step::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--line);
}
.co-step.active { color: var(--cyan-soft); }
.co-step.active::after { background: linear-gradient(90deg, var(--cyan), rgba(0, 229, 255, 0.2)); box-shadow: 0 0 10px var(--cyan-glow); }
.co-step.done { color: var(--muted); }

.co-body h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 6px;
}
.co-sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 22px; }

.field { display: block; margin-bottom: 16px; }
.field span { display: block; font-size: 0.78rem; color: var(--muted); margin-bottom: 7px; letter-spacing: 0.02em; }
.field input {
  width: 100%;
  background: #0b0d10;
  border: 1px solid var(--line-2);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 13px 15px;
  border-radius: 12px;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.field input:focus {
  border-color: rgba(0, 229, 255, 0.6);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12), 0 0 18px rgba(0, 229, 255, 0.12);
}
.field input::placeholder { color: #454b52; }
.field.invalid input { border-color: rgba(255, 90, 84, 0.6); box-shadow: 0 0 0 3px rgba(255, 90, 84, 0.1); }
.field .err { display: none; color: #ff9d98; font-size: 0.74rem; margin-top: 5px; }
.field.invalid .err { display: block; }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.co-note {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: 16px;
  font-size: 0.78rem;
  color: var(--faint);
}
.co-note svg { width: 14px; height: 14px; color: var(--cyan); }
.co-next { margin-top: 6px; }

.pay-options { display: grid; gap: 11px; margin-bottom: 18px; }
.pay-opt {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 16px;
  border-radius: 14px;
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}
.pay-opt input { position: absolute; opacity: 0; pointer-events: none; }
.pay-opt:hover { border-color: var(--line-2); background: rgba(255, 255, 255, 0.04); }
.pay-opt:has(input:checked) {
  border-color: rgba(0, 229, 255, 0.6);
  background: rgba(0, 229, 255, 0.06);
  box-shadow: 0 0 22px rgba(0, 229, 255, 0.12);
}
.pay-card strong { display: block; font-family: var(--font-display); font-size: 1rem; }
.pay-card small { color: var(--muted); font-size: 0.82rem; }
.pay-card em { font-style: normal; color: var(--cyan); font-weight: 600; }
.radio-dot {
  width: 20px; height: 20px;
  border-radius: 50%;
  border: 2px solid #49515a;
  flex: none;
  position: relative;
  transition: border-color 0.25s ease;
}
.pay-opt:has(input:checked) .radio-dot { border-color: var(--cyan); box-shadow: 0 0 10px rgba(0, 229, 255, 0.4); }
.pay-opt:has(input:checked) .radio-dot::after {
  content: "";
  position: absolute; inset: 3px;
  border-radius: 50%;
  background: var(--cyan);
}

.co-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 2px 4px;
  font-size: 0.92rem;
  color: var(--muted);
}
.co-summary strong { font-family: var(--font-display); font-size: 1.3rem; color: #fff; }
.co-actions { display: flex; gap: 12px; margin-top: 16px; }
.co-actions .btn { flex: 1; }
.co-back { padding: 14px 10px; }

.co-success { text-align: center; padding: 18px 8px 6px; }
.success-ring {
  width: 76px; height: 76px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: grid; place-items: center;
  color: #02181c;
  background: linear-gradient(135deg, #6ef2ff, var(--cyan));
  box-shadow: 0 0 0 8px rgba(0, 229, 255, 0.1), 0 0 44px rgba(0, 229, 255, 0.45);
  animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.success-ring svg { width: 34px; height: 34px; }
@keyframes popIn { 0% { transform: scale(0.4); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
.co-success p { color: var(--muted); font-size: 0.96rem; margin-bottom: 8px; }
.co-timer { margin-top: 14px; padding: 11px 14px; border-radius: 12px; background: rgba(0, 229, 255, 0.05); border: 1px dashed rgba(0, 229, 255, 0.3); font-size: 0.85rem; }
.co-timer strong { color: var(--cyan-soft); }
.co-success .btn { margin-top: 20px; }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }

/* stagger helpers */
.feature-grid .feature:nth-child(2) { transition-delay: 0.08s; }
.feature-grid .feature:nth-child(3) { transition-delay: 0.16s; }
.feature-grid .feature:nth-child(4) { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.15s !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews { grid-template-columns: 1fr 1fr; }
  .reviews .review:last-child { grid-column: 1 / -1; max-width: 560px; margin-inline: auto; width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .offer-card { grid-template-columns: 1fr; }
  .offer-media { min-height: 300px; }
  .hero-inner { grid-template-columns: 1fr; gap: 30px; }
  .hero-copy { text-align: center; }
  .lead { margin-inline: auto; }
  .hero-ctas, .hero-proof { justify-content: center; }
  .product-stage { max-width: 460px; }
}

@media (max-width: 860px) {
  .scene-ui { padding: 18px 16px; }
  .scene-label { min-width: 0; }
  .scene-label strong { font-size: 0.78rem; }
  .anc-text { display: none; }
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(320px, 82vw);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 26px;
    padding: 40px;
    background: rgba(6, 8, 10, 0.96);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--line);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 55;
  }
  .nav-links a { font-size: 1.2rem; color: #dfe4ea; }
  .nav-links.open { transform: translateX(0); }
  .nav-burger { display: flex; }
  .nav-cta { display: none; }
  .scene-ui { flex-direction: column; gap: 14px; }
  .eq { bottom: 150px; }
  .scene-label { flex-direction: row; align-items: center; gap: 12px; width: 100%; }
  .sound-toggle { position: absolute; right: 12px; bottom: 12px; }
  .noise-tag { font-size: 0.5rem; }
}

@media (max-width: 620px) {
  .feature-grid { grid-template-columns: 1fr; }
  .reviews { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .chip-tl { left: -2px; }
  .chip-tr { right: -2px; }
  .chip { padding: 8px 10px 8px 8px; }
  .chip b { font-size: 0.8rem; }
  .chip > span:last-child { font-size: 0.54rem; }
  .chip-ico { width: 32px; height: 32px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .offer-media > img { width: 88%; }
  .btn-lg { padding: 15px 24px; }
}