:root {
  --bg: #070812;
  --panel: rgba(255,255,255,.07);
  --panel-strong: rgba(255,255,255,.11);
  --text: #f5f7fb;
  --muted: #a7afc2;
  --line: rgba(255,255,255,.14);
  --accent: #7c5cff;
  --accent-2: #00e0ff;
  --accent-3: #ffcc66;
  --danger: #ff4d7d;
  --radius: 28px;
  --shadow: 0 28px 90px rgba(0,0,0,.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 5%, rgba(124,92,255,.42), transparent 34%),
    radial-gradient(circle at 84% 15%, rgba(0,224,255,.28), transparent 32%),
    radial-gradient(circle at 50% 92%, rgba(255,204,102,.18), transparent 30%),
    var(--bg);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .08;
  z-index: 0;
  background-image: linear-gradient(transparent 0, rgba(255,255,255,.25) 1px, transparent 1px);
  background-size: 100% 4px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 64px);
  backdrop-filter: blur(20px);
  background: rgba(7,8,18,.72);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; letter-spacing: -.03em; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 12px 35px rgba(124,92,255,.4);
}
.nav { display: flex; gap: 24px; color: var(--muted); font-size: 14px; }
.nav a:hover { color: var(--text); }
.top-cta {
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--text);
  color: #080916;
  font-weight: 800;
}

.section { position: relative; z-index: 1; padding: 84px clamp(18px, 4vw, 64px); max-width: 1240px; margin: 0 auto; }
.hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 46px; align-items: center; padding-top: 96px; }
.status-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  color: var(--muted);
  font-size: 14px;
}
.dot { width: 9px; height: 9px; border-radius: 50%; background: #42ff9f; box-shadow: 0 0 16px #42ff9f; }
h1 { margin: 24px 0 18px; font-size: clamp(42px, 7vw, 86px); line-height: .92; letter-spacing: -.07em; }
.lead { max-width: 680px; color: var(--muted); font-size: clamp(17px, 2vw, 21px); line-height: 1.65; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.btn {
  border: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 900;
  font-size: 15px;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #061018; background: linear-gradient(135deg, var(--accent-2), #b4fffb); box-shadow: 0 16px 42px rgba(0,224,255,.25); }
.btn-secondary { background: rgba(255,255,255,.06); border: 1px solid var(--line); color: var(--text); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 42px; max-width: 680px; }
.trust-grid div { padding: 18px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.05); }
.trust-grid strong { display: block; font-size: 24px; }
.trust-grid span { color: var(--muted); font-size: 13px; }
.hero-visual { min-height: 540px; display: grid; place-items: center; }
.device-card {
  position: relative;
  width: min(100%, 430px);
  aspect-ratio: 1 / 1.15;
  border: 1px solid var(--line);
  border-radius: 44px;
  background: linear-gradient(145deg, rgba(255,255,255,.16), rgba(255,255,255,.04));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.device-card:before { content: ""; position: absolute; inset: -25%; background: conic-gradient(from 180deg, transparent, rgba(0,224,255,.4), transparent, rgba(124,92,255,.45), transparent); animation: spin 8s linear infinite; }
.device-card:after { content: ""; position: absolute; inset: 2px; border-radius: 42px; background: #0b0d1c; }
@keyframes spin { to { transform: rotate(360deg); } }
.usb, .equalizer, .price-badge { position: absolute; z-index: 1; }
.usb { left: 50%; top: 42%; transform: translate(-50%, -50%) rotate(-12deg); display: flex; filter: drop-shadow(0 30px 45px rgba(0,0,0,.5)); }
.usb-head { width: 92px; height: 92px; border-radius: 24px 0 0 24px; background: linear-gradient(135deg, #d8deea, #788092); }
.usb-body { width: 210px; height: 92px; border-radius: 0 24px 24px 0; background: linear-gradient(135deg, #101425, #242b4d); border: 1px solid rgba(255,255,255,.18); padding: 20px; }
.usb-body span { display:block; color: var(--accent-2); font-size: 12px; font-weight: 800; }
.usb-body b { font-size: 22px; }
.equalizer { left: 36px; right: 36px; bottom: 48px; height: 86px; display: flex; align-items: end; justify-content: center; gap: 12px; }
.equalizer span { display: block; width: 28px; border-radius: 999px; background: linear-gradient(var(--accent-2), var(--accent)); animation: bars 1.1s ease-in-out infinite alternate; }
.equalizer span:nth-child(1){ height: 25%; animation-delay: .1s; } .equalizer span:nth-child(2){ height: 70%; animation-delay: .2s; } .equalizer span:nth-child(3){ height: 45%; animation-delay: .3s; } .equalizer span:nth-child(4){ height: 88%; animation-delay: .4s; } .equalizer span:nth-child(5){ height: 50%; animation-delay: .5s; } .equalizer span:nth-child(6){ height: 72%; animation-delay: .6s; }
@keyframes bars { to { transform: scaleY(.55); } }
.price-badge { right: 26px; top: 28px; width: 116px; height: 116px; border-radius: 50%; background: var(--accent-3); color: #17100a; display:grid; place-items:center; text-align:center; transform: rotate(9deg); box-shadow: 0 18px 45px rgba(255,204,102,.28); }
.price-badge small { display: block; font-weight: 800; } .price-badge b { display:block; font-size: 24px; letter-spacing: -.04em; }

.promo-strip { position: relative; z-index: 1; display: flex; gap: 12px; overflow: auto; padding: 14px clamp(18px, 4vw, 64px); border-block: 1px solid var(--line); background: rgba(255,255,255,.05); }
.promo-strip span { white-space: nowrap; padding: 10px 16px; border-radius: 999px; background: rgba(255,255,255,.07); color: var(--muted); }
.section-head { max-width: 720px; margin-bottom: 34px; }
.eyebrow { margin: 0 0 10px; color: var(--accent-2); font-weight: 900; text-transform: uppercase; letter-spacing: .14em; font-size: 12px; }
h2 { margin: 0; font-size: clamp(32px, 5vw, 56px); line-height: 1; letter-spacing: -.055em; }
.section-head p:not(.eyebrow), .panel p, .benefit p, .step p { color: var(--muted); line-height: 1.65; }
.sets-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.set-card {
  position: relative;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.06);
  box-shadow: 0 14px 55px rgba(0,0,0,.18);
}
.set-card.featured { background: linear-gradient(180deg, rgba(124,92,255,.22), rgba(255,255,255,.07)); border-color: rgba(0,224,255,.38); transform: translateY(-12px); }
.ribbon { position: absolute; top: 18px; right: 18px; padding: 8px 12px; border-radius: 999px; background: var(--accent-3); color: #15100a; font-size: 12px; font-weight: 900; }
.set-label { display: inline-flex; padding: 8px 11px; border-radius: 999px; background: rgba(0,224,255,.12); color: var(--accent-2); font-size: 12px; font-weight: 900; }
.set-card h3 { font-size: 32px; margin: 18px 0 10px; letter-spacing: -.04em; }
.set-card p, .set-card li { color: var(--muted); line-height: 1.55; }
.set-card ul { padding: 0; margin: 24px 0; list-style: none; display: grid; gap: 12px; }
.set-card li { position: relative; padding-left: 24px; }
.set-card li:before { content: ""; position: absolute; left: 0; top: .55em; width: 9px; height: 9px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); }
.price { margin: 20px 0 22px; }
.price span { color: var(--muted); text-decoration: line-through; margin-right: 12px; }
.price strong { font-size: 34px; letter-spacing: -.05em; }
.btn-card { width: 100%; background: var(--text); color: #080916; }
.set-card.selected { outline: 3px solid var(--accent-2); }
.split-section { display: grid; grid-template-columns: .95fr 1.05fr; gap: 20px; }
.panel, .benefit, .included-card, blockquote, .step, .order-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.06);
}
.dark-panel { padding: 36px; min-height: 100%; background: linear-gradient(135deg, rgba(0,224,255,.14), rgba(124,92,255,.12)); }
.benefit-list { display: grid; gap: 14px; }
.benefit { display: grid; grid-template-columns: 62px 1fr; gap: 16px; padding: 22px; }
.benefit span, .step span { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 16px; background: rgba(0,224,255,.12); color: var(--accent-2); font-weight: 900; }
.benefit h3, .step h3 { margin: 0 0 6px; }
.benefit p, .step p { margin: 0; }
.included-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.included-card { padding: 24px; min-height: 130px; display: grid; align-content: end; }
.included-card b { font-size: 20px; } .included-card span { color: var(--muted); margin-top: 8px; }
.reviews-grid, .steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
blockquote { margin: 0; padding: 26px; color: var(--text); line-height: 1.65; }
blockquote cite { display: block; margin-top: 18px; color: var(--accent-2); font-style: normal; font-weight: 900; }
.step { padding: 26px; }
.step span { margin-bottom: 24px; }
.order-card { display: grid; grid-template-columns: .85fr 1.15fr; gap: 34px; padding: clamp(24px, 5vw, 44px); background: linear-gradient(135deg, rgba(124,92,255,.24), rgba(0,224,255,.09)); box-shadow: var(--shadow); }
.order-price { color: var(--muted); font-size: 22px; } .order-price strong { color: var(--accent-3); font-size: 34px; }
.stock { color: var(--muted); }
.order-form { display: grid; gap: 16px; }
.order-form label { display: grid; gap: 8px; color: var(--muted); font-weight: 700; }
.order-form input { width: 100%; min-height: 58px; border-radius: 18px; border: 1px solid var(--line); background: rgba(4,6,14,.72); color: var(--text); padding: 0 18px; font: inherit; outline: none; }
.order-form input:focus { border-color: var(--accent-2); }
.order-form small { color: var(--muted); line-height: 1.5; }
.footer { position: relative; z-index: 1; display: flex; justify-content: center; gap: 22px; flex-wrap: wrap; padding: 34px 18px 92px; color: var(--muted); border-top: 1px solid var(--line); }
.sticky-mobile { display: none; }

@media (max-width: 940px) {
  .nav { display: none; }
  .hero, .split-section, .order-card { grid-template-columns: 1fr; }
  .hero-visual { min-height: 420px; }
  .sets-grid, .reviews-grid, .steps-grid, .included-grid { grid-template-columns: 1fr; }
  .set-card.featured { transform: none; }
  .trust-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .top-cta { display: none; }
  .section { padding: 58px 16px; }
  .hero { padding-top: 58px; }
  h1 { font-size: 46px; }
  .hero-actions .btn { width: 100%; }
  .device-card { border-radius: 32px; }
  .usb { transform: translate(-50%, -50%) rotate(-10deg) scale(.78); }
  .sticky-mobile { position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border-radius: 22px; background: rgba(12,14,28,.9); border: 1px solid var(--line); backdrop-filter: blur(18px); box-shadow: 0 16px 50px rgba(0,0,0,.35); }
  .sticky-mobile span { font-size: 14px; }
  .sticky-mobile a { padding: 11px 15px; border-radius: 999px; background: var(--accent-2); color: #061018; font-weight: 900; }
}