:root {
  --bg: #07080a;
  --bg-2: #0c0e12;
  --panel: #11141a;
  --ink: #e8eef2;
  --muted: #8b969e;
  --line: rgba(232, 238, 242, .1);
  --ice: #8ec4dc;
  --ice-deep: #5a93ad;
  --violet: #6d6284;
  --ok: #7dba9a;
  --header: 72px;
  --font: "Manrope", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --r: 4px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -.03em; line-height: 1.12; }
p { margin: 0; color: var(--muted); }
.wrap { width: min(1180px, calc(100% - 2.4rem)); margin: 0 auto; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-size: .72rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--ice);
}
.eyebrow::before { content: ""; width: 1.6rem; height: 1px; background: var(--ice); }

.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 48px; padding: 0 1.25rem;
  border: 0; border-radius: var(--r); cursor: pointer;
  background: var(--ice); color: #081014; font-weight: 700; letter-spacing: .02em;
  transition: transform .2s ease, box-shadow .2s ease;
}
.btn::after {
  content: ""; position: absolute; inset: -20% auto; left: -40%; width: 28%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.45), transparent);
  transform: skewX(-20deg); opacity: 0; pointer-events: none;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(142,196,220,.18); }
.btn:hover::after { animation: sweep .7s ease; }
.btn-ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--ice); color: var(--ice); box-shadow: none; }
.btn:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--ice); outline-offset: 3px;
}
@keyframes sweep { from { left: -40%; opacity: 1; } to { left: 120%; opacity: 0; } }

.top {
  position: sticky; top: 0; z-index: 50;
  height: var(--header);
  background: rgba(7,8,10,.78);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  transition: height .2s ease;
}
.top.is-compact { --header: 58px; }
.top-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: grid; line-height: 1.05; }
.brand b { font-size: 1rem; letter-spacing: .08em; }
.brand small { font-size: .62rem; letter-spacing: .18em; color: var(--muted); text-transform: uppercase; }
.nav { display: none; gap: 1.15rem; font-size: .92rem; color: var(--muted); }
.nav a:hover { color: var(--ink); }
.head-cta { display: flex; align-items: center; gap: .55rem; }
.soc {
  width: 38px; height: 38px; display: grid; place-items: center;
  border: 0; border-radius: 50%; background: transparent; padding: 0;
  transition: transform .2s ease, filter .2s ease;
}
.soc svg { width: 38px; height: 38px; display: block; }
.soc:hover { transform: translateY(-2px); filter: brightness(1.08); }
.btn-tg, .btn-vk { border: 0; color: #fff; }
.btn-tg { background: #229ED9; }
.btn-vk { background: #0077FF; }
.btn-tg:hover { box-shadow: 0 10px 28px rgba(34,158,217,.28); }
.btn-vk:hover { box-shadow: 0 10px 28px rgba(0,119,255,.28); }
.btn-tg svg, .btn-vk svg { width: 18px; height: 18px; flex: none; }
.menu-btn {
  width: 42px; height: 42px; border: 1px solid var(--line); background: transparent; border-radius: var(--r);
  display: grid; place-items: center; cursor: pointer;
}
.menu-btn span, .menu-btn span::before, .menu-btn span::after {
  display: block; width: 16px; height: 1.4px; background: var(--ink); position: relative;
}
.menu-btn span::before, .menu-btn span::after { content: ""; position: absolute; left: 0; }
.menu-btn span::before { top: -5px; }
.menu-btn span::after { top: 5px; }
.mobile-nav {
  display: none; position: fixed; inset: var(--header) 0 auto 0; z-index: 49;
  background: rgba(7,8,10,.96); border-bottom: 1px solid var(--line);
  padding: 1rem 1.2rem 1.2rem;
}
.mobile-nav.open { display: grid; gap: .75rem; }
.mobile-nav a { font-weight: 600; }

.hero {
  min-height: calc(100svh - var(--header));
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(280px, .95fr);
  align-items: center; gap: 2rem;
  padding: 2.2rem 0 3rem;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: auto -10% 10% 40%; height: 50%;
  background: radial-gradient(circle, rgba(142,196,220,.12), transparent 62%);
  pointer-events: none;
}
.hero-copy { position: relative; z-index: 1; padding: 0 clamp(1.1rem, 3vw, 2rem) 0 clamp(1.1rem, 4vw, 5vw); }
.hero h1 {
  margin: .7rem 0 .85rem;
  font-size: clamp(2.3rem, 6.2vw, 5.2rem);
  max-width: 14ch;
}
.hero-sub { font-size: 1.08rem; max-width: 36rem; margin-bottom: 1.4rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .6rem; }
.micro { margin-top: 1rem; font-size: .88rem; max-width: 32rem; }
.pills { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1.3rem; }
.pill {
  border: 1px solid var(--line); padding: .35rem .7rem; font-size: .75rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
}
.hero-visual {
  position: relative; min-height: min(72vh, 680px);
  display: grid; place-items: center;
}
.optic-stage {
  width: min(88%, 520px); aspect-ratio: 1; position: relative;
  transform-style: preserve-3d; transition: transform .15s ease;
}
.optic-stage img {
  width: 100%; height: 100%; object-fit: contain;
  filter: drop-shadow(0 20px 50px rgba(0,0,0,.55));
}
.rings {
  position: absolute; inset: 6%; border-radius: 50%;
  border: 1px solid rgba(142,196,220,.18); pointer-events: none;
}
.rings::after {
  content: ""; position: absolute; inset: 12%; border-radius: 50%;
  border: 1px solid rgba(142,196,220,.08);
}
.beam {
  position: absolute; left: -8%; right: -8%; top: 48%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--ice), transparent);
  opacity: .45; pointer-events: none;
}

section { padding: clamp(3.4rem, 8vw, 6.2rem) 0; }
.band { background: var(--bg-2); border-block: 1px solid var(--line); }
.section-head { max-width: 40rem; margin-bottom: 2rem; }
.section-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.7rem); margin: .45rem 0 .7rem; }
.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center;
}
.optic-card {
  position: relative; overflow: hidden; background: #0a0c10; border: 1px solid var(--line);
}
.optic-card img { width: 100%; height: min(520px, 62vh); object-fit: cover; transition: transform .6s ease; }
.optic-card.cutout { background: transparent; border-color: transparent; }
.optic-card.cutout img { object-fit: contain; }
.optic-card:hover img { transform: scale(1.04) rotate(-1.2deg); }

.grid-4, .grid-3, .grid-2 { display: grid; gap: 1rem; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: 1fr 1fr; }
.card {
  background: var(--panel); border: 1px solid var(--line); padding: 1.2rem 1.15rem;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.card:hover { border-color: rgba(142,196,220,.4); transform: translateY(-3px); box-shadow: 0 0 0 1px rgba(142,196,220,.08); }
.card b { display: block; color: var(--ice); font-size: .72rem; letter-spacing: .14em; margin-bottom: .45rem; }
.card h3 { font-size: 1.05rem; margin-bottom: .45rem; }
.card p { font-size: .95rem; }

.models { display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; }
.model {
  border: 1px solid var(--line); background: var(--panel); padding: 1.1rem .9rem;
  display: grid; gap: .55rem; text-align: left; cursor: pointer;
  transition: border-color .2s ease, transform .2s ease;
}
.model:hover { border-color: var(--ice); transform: translateY(-2px); }
.model strong { font-size: .95rem; }
.model span { font-size: .78rem; color: var(--muted); }

.lead-split { display: grid; grid-template-columns: 1fr 1.05fr; gap: 1.6rem; align-items: start; }
.form-card {
  background: var(--panel); border: 1px solid var(--line);
  padding: clamp(1.2rem, 3vw, 1.8rem);
}
.fields { display: grid; gap: .75rem; }
.field { display: grid; gap: .32rem; }
.field label { font-size: .8rem; font-weight: 600; }
.field input, .field select, .field textarea {
  min-height: 46px; padding: .7rem .8rem;
  border: 1px solid var(--line); border-radius: var(--r);
  background: #0a0c10; color: var(--ink);
}
.field textarea { min-height: 96px; resize: vertical; }
.consent { display: grid; grid-template-columns: 1.05rem 1fr; gap: .55rem; font-size: .8rem; color: var(--muted); }
.consent a { color: var(--ice); text-decoration: underline; text-underline-offset: 2px; }
.form-msg { display: none; margin-top: .85rem; padding: .8rem; border: 1px solid rgba(142,196,220,.3); color: var(--ice); font-weight: 600; }
.form-msg.show { display: block; }
.form-msg.error { border-color: #8a3a3a; color: #e8b4b4; }

.product {
  display: grid; grid-template-columns: .9fr 1.1fr; gap: 1.6rem; align-items: start;
}
.price { font-size: 2.4rem; font-weight: 700; letter-spacing: -.03em; }
.price small { display: block; font-size: .9rem; color: var(--muted); font-weight: 500; margin-top: .25rem; }
.stock { display: inline-flex; align-items: center; gap: .45rem; color: var(--ok); font-size: .88rem; font-weight: 600; }
.stock::before { content: ""; width: .5rem; height: .5rem; border-radius: 50%; background: var(--ok); }
.spec { width: 100%; border-collapse: collapse; margin: 1.1rem 0 1.3rem; }
.spec th, .spec td { text-align: left; padding: .7rem 0; border-bottom: 1px solid var(--line); font-size: .95rem; vertical-align: top; }
.spec th { width: 42%; color: var(--muted); font-weight: 500; }

.gallery { display: grid; grid-template-columns: 1.4fr 1fr 1fr; grid-auto-rows: 180px; gap: .55rem; }
.gallery a { overflow: hidden; border: 1px solid var(--line); background: #0a0c10; }
.gallery a:first-child { grid-row: span 2; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.gallery a:hover img { transform: scale(1.05); }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.step b { color: var(--ice); display: block; margin-bottom: .4rem; letter-spacing: .1em; font-size: .75rem; }

.trust { display: grid; grid-template-columns: 1.2fr .8fr; gap: 1.5rem; align-items: center; }
.trust-links { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1rem; }

.faq details { border-bottom: 1px solid var(--line); padding: .95rem 0; }
.faq summary {
  cursor: pointer; font-weight: 600; list-style: none;
  display: flex; justify-content: space-between; gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--ice); font-weight: 500; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin-top: .55rem; max-width: 46rem; }

.seo-long { max-width: 46rem; }
.seo-long p { margin-bottom: 1rem; font-size: 1.02rem; }
.seo-long h2 { font-size: 1.6rem; margin: 0 0 1rem; }

.finale {
  position: relative; overflow: hidden;
  padding: clamp(4rem, 10vw, 7rem) 0;
  background: #040506;
  text-align: center;
}
.finale img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: .22; pointer-events: none;
}
.finale .wrap { position: relative; z-index: 1; }
.finale h2 { font-size: clamp(2rem, 5vw, 3.6rem); margin: .4rem 0 .7rem; }
.finale-cta { display: flex; justify-content: center; flex-wrap: wrap; gap: .6rem; margin-top: 1.3rem; }

footer { padding: 2rem 0 5.6rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .86rem; }
.foot { display: grid; gap: .8rem; }
.foot strong { color: var(--ink); }
.foot-nav { display: flex; flex-wrap: wrap; gap: .8rem 1.1rem; }
.foot a:hover { color: var(--ice); }
.legal { max-width: 48rem; }

.sticky-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: none; gap: .7rem; align-items: center; justify-content: space-between;
  padding: .65rem 1rem calc(.65rem + env(safe-area-inset-bottom));
  background: rgba(7,8,10,.94); border-top: 1px solid var(--line);
}
.sticky-bar b { font-size: .86rem; }

.modal {
  position: fixed; inset: 0; z-index: 80; display: none;
  align-items: center; justify-content: center; padding: 1rem;
  background: rgba(4,5,6,.78);
}
.modal.open { display: flex; }
.modal-card {
  width: min(520px, 100%); max-height: 92vh; overflow: auto;
  background: #101318; border: 1px solid var(--line); padding: 1.3rem 1.2rem 1.2rem;
}
.modal-top { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.close {
  width: 40px; height: 40px; border: 1px solid var(--line); background: transparent;
  color: var(--ink); cursor: pointer; border-radius: var(--r);
}
.lightbox {
  position: fixed; inset: 0; z-index: 90; display: none;
  background: rgba(4,5,6,.9); align-items: center; justify-content: center; padding: 1rem;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: min(1100px, 100%); max-height: 90vh; object-fit: contain; }

.reveal { opacity: 0; transform: translateY(16px); animation: reveal .7s ease forwards; }
@keyframes reveal { to { opacity: 1; transform: none; } }

@media (min-width: 981px) {
  .nav { display: flex; }
  .menu-btn { display: none; }
  .head-cta .btn { display: inline-flex; }
}
@media (max-width: 1100px) {
  .models { grid-template-columns: repeat(3, 1fr); }
  .grid-4, .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 980px) {
  .hero, .split, .product, .trust, .lead-split { grid-template-columns: 1fr; }
  .hero { min-height: 0; padding-top: 1.2rem; }
  .hero-copy { padding: 0 1.1rem; }
  .hero-visual { min-height: 320px; order: -1; }
  .hero-cta .btn, .finale-cta .btn { width: 100%; }
  .gallery { grid-template-columns: 1fr 1fr; grid-auto-rows: 160px; }
  .gallery a:first-child { grid-row: auto; }
  .sticky-bar { display: flex; }
  .head-cta .btn { display: none; }
  body { padding-bottom: 4.6rem; }
  footer { padding-bottom: 1.6rem; }
}
@media (max-width: 700px) {
  .grid-4, .grid-3, .grid-2, .models, .steps { grid-template-columns: 1fr; }
  .swipe { display: grid; grid-auto-flow: column; grid-auto-columns: min(80vw, 280px); overflow-x: auto; gap: .7rem; scroll-snap-type: x mandatory; }
  .swipe > * { scroll-snap-align: start; }
}
.help { position: fixed; right: 1.1rem; bottom: 1.2rem; z-index: 70; display: none; flex-direction: column; align-items: flex-end; gap: .7rem; }
.help.is-on { display: flex; animation: help-in .45s ease; }
@keyframes help-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
.help-tease {
  display: none; max-width: min(280px, calc(100vw - 6.5rem));
  background: #12161c; border: 1px solid var(--line); padding: .7rem .8rem;
  grid-template-columns: 40px 1fr auto; gap: .65rem; align-items: center;
  cursor: pointer;
}
.help-tease.is-on { display: grid; animation: help-in .35s ease; }
.help-tease img, .help-head img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.help-tease b { display: block; font-size: .82rem; }
.help-tease p { font-size: .78rem; }
.help-tease .close { width: 28px; height: 28px; font-size: .9rem; }
.help-launch {
  width: 62px; height: 62px; border: 2px solid rgba(142,196,220,.35); border-radius: 50%; padding: 0; cursor: pointer;
  background: #101318; box-shadow: 0 10px 28px rgba(0,0,0,.4);
  position: relative;
}
.help-launch img { width: 58px; height: 58px; border-radius: 50%; object-fit: cover; display: block; }
.help-launch .dot {
  position: absolute; top: 2px; right: 2px; width: 11px; height: 11px;
  background: var(--ok); border: 2px solid #07080a; border-radius: 50%;
}
.help-panel {
  display: none; width: min(360px, calc(100vw - 1.6rem));
  max-height: min(520px, calc(100svh - 8rem));
  background: #101318; border: 1px solid var(--line);
  flex-direction: column; overflow: hidden;
}
.help-panel.is-on { display: flex; }
.help-panel.is-on ~ .help-launch { display: none; }
body.help-open .sticky-bar { display: none; }
.help-head {
  display: flex; align-items: center; gap: .7rem;
  padding: .75rem .85rem; border-bottom: 1px solid var(--line);
}
.help-head strong { display: block; font-size: .95rem; }
.help-head span { font-size: .75rem; color: var(--ok); }
.help-head .close { margin-left: auto; }
.help-log { padding: .85rem; overflow: auto; display: grid; gap: .55rem; flex: 1; }
.help-msg {
  max-width: 92%; padding: .65rem .75rem; font-size: .9rem; line-height: 1.4;
  background: #1a2028; color: var(--ink);
}
.help-msg.me { justify-self: end; background: #1c3340; }
.help-chips { display: flex; flex-wrap: wrap; gap: .4rem; padding: 0 .85rem .75rem; }
.help-chips button {
  border: 1px solid var(--line); background: transparent; color: var(--ink);
  min-height: 36px; padding: 0 .7rem; cursor: pointer; font-size: .8rem;
}
.help-chips button:hover { border-color: var(--ice); color: var(--ice); }
.help-form { display: none; padding: 0 .85rem .9rem; gap: .5rem; }
.help-form.is-on { display: grid; }
.help-form input {
  min-height: 42px; padding: 0 .7rem; border: 1px solid var(--line);
  background: #0a0c10; color: var(--ink);
}
.help-form .consent { font-size: .72rem; }
@media (max-width: 980px) {
  .help { bottom: 5.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}