/* ════════════════════════════════════════════════════════════
   NEBULA — чёрно-белый тёмный сайт
   ════════════════════════════════════════════════════════════ */

:root {
  --bg: #000;
  --bg2: #0a0a0a;
  --panel: #111;
  --line: #2a2a2a;
  --fg: #fff;
  --dim: #999;
  --faint: #555;
  --glow: rgba(255,255,255,0.6);
  --font-d: 'Unbounded', system-ui, sans-serif;
  --font-b: 'Space Grotesk', system-ui, sans-serif;
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  background:var(--bg);
  color:var(--fg);
  font-family:var(--font-b);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img { max-width:100%; }
a { color:var(--fg); text-decoration:none; }
::selection { background:#fff; color:#000; }

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width:10px; }
::-webkit-scrollbar-track { background:#000; }
::-webkit-scrollbar-thumb { background:#333; border:2px solid #000; }
::-webkit-scrollbar-thumb:hover { background:#fff; }

/* ── Canvas фон ────────────────────────────────────────────── */
#stars {
  position:fixed; inset:0;
  z-index:0;
  pointer-events:none;
}

/* ── Загрузчик ─────────────────────────────────────────────── */
#loader {
  position:fixed; inset:0; z-index:9999;
  background:#000;
  display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  gap:24px;
  transition:opacity .6s ease, visibility .6s ease;
}
#loader.hidden { opacity:0; visibility:hidden; }
.loader-core { position:relative; width:110px; height:110px; }
.loader-ring {
  position:absolute; inset:0;
  border:2px solid #333;
  border-top-color:#fff;
  border-radius:50%;
  animation:spin 1s linear infinite;
}
.loader-logo {
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-d);
  font-size:46px; font-weight:900;
  text-shadow:0 0 30px var(--glow);
}
.loader-text { font-family:var(--font-d); letter-spacing:.5em; text-transform:uppercase; font-size:14px; }
@keyframes spin { to { transform:rotate(360deg); } }
.blink { animation:blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity:0; } }

/* ── Курсор ────────────────────────────────────────────────── */
#cursor {
  position:fixed; width:340px; height:340px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(255,255,255,.045) 0%, transparent 70%);
  pointer-events:none; z-index:1;
  transform:translate(-50%,-50%);
  transition:opacity .3s;
  opacity:0;
}
@media (hover:hover) { #cursor { opacity:1; } }

/* ── Навигация ─────────────────────────────────────────────── */
#nav {
  position:fixed; top:0; left:0; right:0; z-index:100;
  transition:background .3s, backdrop-filter .3s, border-color .3s;
  border-bottom:1px solid transparent;
}
#nav.scrolled {
  background:rgba(0,0,0,.72);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner {
  max-width:1200px; margin:0 auto;
  padding:18px 28px;
  display:flex; align-items:center; justify-content:space-between;
  gap:20px;
}
.brand { font-family:var(--font-d); font-weight:800; font-size:20px; letter-spacing:.12em; display:flex; align-items:center; gap:10px; }
.brand-dot { width:9px; height:9px; background:#fff; border-radius:50%; box-shadow:0 0 14px var(--glow); animation:pulse 2s infinite; }
@keyframes pulse { 50% { opacity:.35; } }
.links { display:flex; gap:34px; }
.links a { position:relative; font-size:15px; color:var(--dim); transition:color .2s; }
.links a::after {
  content:''; position:absolute; left:0; bottom:-6px; width:0; height:1.5px; background:#fff;
  transition:width .3s;
}
.links a:hover { color:#fff; }
.links a:hover::after { width:100%; }

/* ── Кнопки ────────────────────────────────────────────────── */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-family:var(--font-d);
  letter-spacing:.08em;
  border-radius:2px;
  cursor:pointer;
  transition:all .25s ease;
  position:relative; overflow:hidden;
  white-space:nowrap;
  border:1px solid var(--line);
}
.btn-sm { padding:8px 18px; font-size:11px; }
.btn-lg { padding:17px 34px; font-size:13px; }
.btn-xl { padding:22px 44px; font-size:15px; }
.btn-solid { background:#fff; color:#000; border-color:#fff; }
.btn-solid:hover { box-shadow:0 0 40px rgba(255,255,255,.5); transform:translateY(-2px); }
.btn-ghost { background:transparent; color:#fff; }
.btn-ghost:hover { background:#fff; color:#000; transform:translateY(-2px); }
.btn-solid::before {
  content:''; position:absolute; top:0; left:-100%; width:60%; height:100%;
  background:linear-gradient(100deg, transparent, rgba(0,0,0,.25), transparent);
  transition:left .5s;
}
.btn-solid:hover::before { left:130%; }
.dl-icon { font-size:18px; }

/* ── Герой ─────────────────────────────────────────────────── */
.hero {
  position:relative; z-index:2;
  min-height:100vh;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center;
  padding:120px 24px 60px;
}
.hero-ticker {
  position:absolute; top:64px;
  font-family:var(--font-d);
  font-size:11px; letter-spacing:.35em; color:var(--faint);
  animation:tickerFade 3s ease forwards;
  opacity:0;
}
@keyframes tickerFade { to { opacity:1; } }
.hero-badge {
  border:1px solid var(--line);
  padding:8px 20px;
  font-size:11px; letter-spacing:.3em; text-transform:uppercase; color:var(--dim);
  margin-bottom:34px;
  position:relative;
}
.hero-badge::before, .hero-badge::after {
  content:''; position:absolute; width:6px; height:6px; background:#fff; top:50%; transform:translateY(-50%);
}
.hero-badge::before { left:-4px; } .hero-badge::after { right:-4px; }
.hero-title {
  font-family:var(--font-d);
  font-weight:900;
  font-size:clamp(70px, 18vw, 220px);
  line-height:.92;
  letter-spacing:.02em;
  position:relative;
  text-shadow:0 0 80px rgba(255,255,255,.35);
}
.hero-title::after {
  content:''; position:absolute; left:15%; right:15%; bottom:.06em; height:2px; background:#fff;
  box-shadow:0 0 24px var(--glow);
  transform:scaleX(0); animation:slideX 1.2s ease .6s forwards;
}
@keyframes slideX { to { transform:scaleX(1); } }
.hero-sub {
  margin-top:38px;
  font-size:clamp(16px, 2.2vw, 21px);
  color:var(--dim);
  max-width:720px;
  line-height:1.7;
}
.hero-sub strong { color:#fff; font-weight:600; }
.hero-cta { display:flex; gap:16px; margin-top:44px; flex-wrap:wrap; justify-content:center; }
.hero-price { margin-top:60px; display:flex; align-items:center; gap:18px; font-family:var(--font-d); }
.price-old { color:var(--faint); text-decoration:line-through; font-size:16px; }
.price-arrow { color:var(--dim); font-size:18px; }
.price-new { font-size:44px; font-weight:900; text-shadow:0 0 30px var(--glow); }
.price-tag {
  border:1px solid #fff; color:#000; background:#fff;
  padding:5px 12px; font-size:11px; letter-spacing:.2em;
  box-shadow:0 0 26px rgba(255,255,255,.4);
  animation:pulse 2s infinite;
}
.scroll-hint {
  position:absolute; bottom:34px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:10px;
  font-size:11px; letter-spacing:.3em; color:var(--faint);
  text-transform:uppercase;
}
.scroll-hint span {
  width:1px; height:44px; background:#333; position:relative; overflow:hidden;
}
.scroll-hint span::after {
  content:''; position:absolute; top:-50%; left:0; width:100%; height:50%; background:#fff;
  animation:scrollDrop 1.6s ease-in-out infinite;
}
@keyframes scrollDrop { 50% { top:100%; } }

/* ── Marquee ───────────────────────────────────────────────── */
.marquee {
  position:relative; z-index:2;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:16px 0;
  overflow:hidden;
  background:var(--bg2);
}
.marquee-track {
  display:flex; gap:34px; width:max-content;
  animation:marquee 26s linear infinite;
  font-family:var(--font-d);
  font-size:13px; letter-spacing:.4em; color:var(--dim); text-transform:uppercase;
}
@keyframes marquee { to { transform:translateX(-50%); } }

/* ── Секции ────────────────────────────────────────────────── */
.section { position:relative; z-index:2; padding:110px 28px; max-width:1200px; margin:0 auto; }
.section-head { text-align:center; margin-bottom:70px; }
.kicker {
  display:inline-block; font-size:11px; letter-spacing:.4em; text-transform:uppercase;
  color:var(--faint); margin-bottom:18px; position:relative; padding:0 34px;
}
.kicker::before, .kicker::after { content:''; position:absolute; top:50%; width:22px; height:1px; background:var(--line); }
.kicker::before { left:0; } .kicker::after { right:0; }
.section-head h2 {
  font-family:var(--font-d); font-weight:900;
  font-size:clamp(32px, 6vw, 58px);
  letter-spacing:.04em;
}
.section-head p { color:var(--dim); margin-top:18px; font-size:17px; max-width:640px; margin-inline:auto; line-height:1.7; }

/* ── Карточки ──────────────────────────────────────────────── */
.cards { display:grid; grid-template-columns:repeat(auto-fit, minmax(320px, 1fr)); gap:18px; }
.card {
  background:linear-gradient(160deg, var(--panel) 0%, #0c0c0c 100%);
  border:1px solid var(--line);
  padding:36px 30px;
  position:relative;
  overflow:hidden;
  transition:border-color .3s, transform .3s;
}
.card::before {
  content:''; position:absolute; inset:0;
  background:radial-gradient(400px circle at var(--x,50%) var(--y,50%), rgba(255,255,255,.06), transparent 45%);
  opacity:0; transition:opacity .3s;
}
.card:hover::before { opacity:1; }
.card:hover { border-color:#fff; transform:translateY(-6px); }
.card-num { font-family:var(--font-d); font-size:13px; color:var(--faint); letter-spacing:.2em; margin-bottom:22px; }
.card h3 { font-family:var(--font-d); font-size:20px; margin-bottom:14px; letter-spacing:.02em; position:relative; }
.card h3::after {
  content:''; display:block; width:28px; height:2px; background:#fff; margin-top:12px;
  transition:width .3s;
}
.card:hover h3::after { width:64px; box-shadow:0 0 12px var(--glow); }
.card p { color:var(--dim); font-size:15px; line-height:1.75; position:relative; }

/* ── Free banner ───────────────────────────────────────────── */
.section-free { max-width:100%; }
.free-banner {
  position:relative;
  border:1px solid var(--line);
  text-align:center;
  padding:90px 30px;
  background:
    radial-gradient(600px circle at 20% 20%, rgba(255,255,255,.05), transparent 50%),
    repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(255,255,255,.02) 50px),
    var(--bg2);
  overflow:hidden;
}
.free-stamp {
  position:absolute; top:26px; right:26px;
  width:120px; height:120px;
  border:1px solid #fff; border-radius:50%;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  font-family:var(--font-d); font-weight:900; font-size:30px;
  animation:spin 14s linear infinite;
  box-shadow:0 0 40px rgba(255,255,255,.15);
}
.free-stamp span { font-size:8px; letter-spacing:.25em; }
@keyframes spin { from { transform:rotate(0); } to { transform:rotate(360deg); } }
.free-banner h2 {
  font-family:var(--font-d); font-weight:900;
  font-size:clamp(40px, 8vw, 90px);
  line-height:1.05;
  margin-bottom:26px;
}
.free-banner p { color:var(--dim); font-size:18px; line-height:1.8; margin-bottom:40px; }

/* ── Глитч ─────────────────────────────────────────────────── */
.glitch { position:relative; }
.glitch::before, .glitch::after {
  content:attr(data-text);
  position:absolute; inset:0;
  opacity:0;
  pointer-events:none;
}
.glitch:hover::before, .glitch:hover::after { opacity:.7; }
.glitch:hover::before {
  color:#aaa; transform:translate(-3px,-2px);
  clip-path:inset(15% 0 55% 0);
  animation:glitch1 .4s steps(2) infinite;
}
.glitch:hover::after {
  color:#fff; transform:translate(3px,2px);
  clip-path:inset(60% 0 5% 0);
  animation:glitch2 .5s steps(2) infinite reverse;
}
@keyframes glitch1 { 50% { clip-path:inset(45% 0 30% 0); transform:translate(2px,-3px); } }
@keyframes glitch2 { 50% { clip-path:inset(10% 0 60% 0); transform:translate(-2px,3px); } }

/* ── Stats ─────────────────────────────────────────────────── */
.stats-grid {
  display:grid; grid-template-columns:repeat(auto-fit, minmax(200px,1fr));
  gap:18px; text-align:center;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:50px 0;
}
.stat .count {
  font-family:var(--font-d); font-weight:900;
  font-size:clamp(44px, 7vw, 76px);
  line-height:1;
  text-shadow:0 0 40px rgba(255,255,255,.25);
}
.stat .count.price { text-decoration:line-through; color:var(--dim); }
.stat-label {
  display:block; margin-top:14px;
  font-size:12px; letter-spacing:.35em; color:var(--faint); text-transform:uppercase;
}

/* ── Модули ────────────────────────────────────────────────── */
.module-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(180px,1fr)); gap:14px; }
.module {
  border:1px solid var(--line);
  padding:24px; text-align:center;
  transition:all .3s;
  background:var(--bg2);
  position:relative; overflow:hidden;
}
.module::after {
  content:''; position:absolute; bottom:0; left:0; height:2px; width:0; background:#fff;
  transition:width .3s;
}
.module:hover::after { width:100%; box-shadow:0 0 16px var(--glow); }
.module:hover { border-color:#fff; transform:translateY(-4px); background:var(--panel); }
.m-cat { display:block; font-size:10px; letter-spacing:.3em; color:var(--faint); text-transform:uppercase; margin-bottom:12px; }
.module h4 { font-family:var(--font-d); font-size:17px; font-weight:700; }

/* ── Download ──────────────────────────────────────────────── */
.section-download { max-width:100%; }
.download-box {
  max-width:760px; margin:0 auto;
  border:1px solid var(--line);
  text-align:center;
  padding:70px 34px;
  background:
    radial-gradient(500px circle at 50% 0%, rgba(255,255,255,.07), transparent 55%),
    var(--bg2);
}
.download-box h2 { font-family:var(--font-d); font-weight:900; font-size:clamp(30px,5vw,48px); margin-bottom:16px; }
.download-box p { color:var(--dim); font-size:17px; margin-bottom:36px; }
.dl-row { display:flex; justify-content:center; }
.dl-meta { display:flex; gap:14px; justify-content:center; flex-wrap:wrap; margin-top:30px; font-size:12px; letter-spacing:.15em; color:var(--faint); }
.dl-note { margin-top:22px; font-size:14px; color:var(--faint); }
code { background:#1a1a1a; border:1px solid var(--line); padding:2px 7px; font-size:13px; color:#fff; }

/* ── FAQ ───────────────────────────────────────────────────── */
.faq { max-width:820px; margin:0 auto; }
.faq-item {
  border:1px solid var(--line);
  margin-bottom:12px;
  background:var(--bg2);
  transition:border-color .3s;
}
.faq-item[open] { border-color:#fff; }
.faq-item summary {
  list-style:none; cursor:pointer;
  padding:22px 26px;
  font-family:var(--font-d); font-size:16px; font-weight:600;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  user-select:none;
}
.faq-item summary::-webkit-details-marker { display:none; }
.faq-plus {
  font-size:26px; font-weight:300; color:var(--dim); line-height:1;
  transition:transform .3s;
}
.faq-item[open] .faq-plus { transform:rotate(45deg); color:#fff; }
.faq-item p { padding:0 26px 24px; color:var(--dim); line-height:1.8; font-size:15px; }
.faq-item code { margin:0 2px; }

/* ── Final CTA ─────────────────────────────────────────────── */
.section-final { text-align:center; padding-top:60px; }
.section-final h2.big { font-size:clamp(40px, 9vw, 110px); margin-bottom:18px; }
.section-final p { color:var(--dim); font-size:18px; margin-bottom:44px; }
.section-final .btn { margin-top:6px; }

/* ── Футер ─────────────────────────────────────────────────── */
footer {
  position:relative; z-index:2;
  border-top:1px solid var(--line);
  background:var(--bg2);
  padding:60px 28px 40px;
}
.footer-inner { max-width:1200px; margin:0 auto; text-align:center; display:flex; flex-direction:column; gap:16px; align-items:center; }
.footer-brand { font-family:var(--font-d); font-weight:800; font-size:24px; letter-spacing:.15em; display:flex; align-items:center; gap:10px; }
footer p { color:var(--faint); font-size:13px; max-width:420px; }
.footer-links { display:flex; gap:28px; }
.footer-links a { font-size:13px; color:var(--dim); transition:color .2s; }
.footer-links a:hover { color:#fff; }
.footer-copy { font-size:11px; color:var(--faint); letter-spacing:.15em; margin-top:14px; }

/* ── Мобильное меню ────────────────────────────────────────── */
#burger { display:none; background:none; border:none; cursor:pointer; flex-direction:column; gap:5px; padding:6px; }
#burger span { width:24px; height:2px; background:#fff; transition:all .3s; }
.mobile-menu {
  position:fixed; top:0; right:0; bottom:0; width:min(320px, 80vw);
  background:rgba(0,0,0,.95); backdrop-filter:blur(20px);
  border-left:1px solid var(--line);
  display:flex; flex-direction:column; gap:6px; padding:100px 34px;
  transform:translateX(100%); transition:transform .4s ease; z-index:99;
}
.mobile-menu.open { transform:translateX(0); }
.mobile-menu a { font-family:var(--font-d); font-size:20px; padding:12px 0; border-bottom:1px solid var(--line); }
.mobile-menu .btn { margin-top:24px; }

/* ── Анимация появления ────────────────────────────────────── */
.reveal {
  opacity:0;
  transform:translateY(34px);
  transition:opacity .8s ease, transform .8s ease;
}
.reveal.visible { opacity:1; transform:translateY(0); }

/* ── Адаптив ───────────────────────────────────────────────── */
@media (max-width:860px) {
  .links { display:none; }
  .nav-inner .btn-sm { display:none; }
  #burger { display:flex; }
  .hide-m { display:none; }
  .free-stamp { width:90px; height:90px; font-size:22px; }
  .hero { padding-top:110px; }
  .cards { grid-template-columns:1fr; }
  .module-grid { grid-template-columns:repeat(2,1fr); }
}