:root {
  --bg: #07090f;
  --bg2: #0b0e18;
  --bg3: #0f1320;
  --surface: #111828;
  --surface2: #172035;
  --border: rgba(255,255,255,0.06);
  --border2: rgba(255,255,255,0.11);
  --accent: #2563eb;
  --accent2: #3b82f6;
  --accent3: #60a5fa;
  --accent-dim: rgba(37,99,235,0.15);
  --accent-glow: rgba(37,99,235,0.25);
  --text: #eef2ff;
  --text2: #8896b3;
  --text3: #4a5578;
  --font-head: 'Bebas Neue', sans-serif;
  --font-body: 'Montserrat', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(7,9,15,0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.navbar.scrolled { background: rgba(7,9,15,0.95); }

.nav-inner {
  width: 100%;
  max-width: 1200px;
  padding: 0 40px;
  display: flex;
  align-items: center;
  position: relative;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-head);
  font-size: 1.3rem;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-links a {
  color: var(--text2);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--text); }

.nav-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-login {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border2);
  background: transparent;
  color: var(--text);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: border-color var(--transition), background var(--transition);
}
.btn-login:hover { border-color: var(--accent2); background: var(--accent-dim); }

.btn-register {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: background var(--transition), transform var(--transition);
}
.btn-register:hover { background: var(--accent2); transform: translateY(-1px); }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; z-index: 0; }

.hero-img {
  position: absolute;
  inset: 0;
  background: url('https://i.playground.ru/i/pix/1313074/image.jpg') center center / cover no-repeat;
  filter: brightness(0.28) saturate(0.4);
}

.hero-overlay-left { position: absolute; left: 0; top: 0; bottom: 0; width: 35%; background: linear-gradient(to right, var(--bg) 0%, transparent 100%); }
.hero-overlay-right { position: absolute; right: 0; top: 0; bottom: 0; width: 35%; background: linear-gradient(to left, var(--bg) 0%, transparent 100%); }
.hero-overlay-bottom { position: absolute; left: 0; right: 0; bottom: 0; height: 45%; background: linear-gradient(to top, var(--bg) 0%, transparent 100%); }
.hero-glow { position: absolute; inset: 0; background: radial-gradient(ellipse 60% 50% at 30% 50%, rgba(37,99,235,0.1) 0%, transparent 70%); }

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 40px 80px;
  width: 100%;
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 5.5vw, 5rem);
  line-height: 0.97;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
  animation: fadeUp 0.6s 0.1s ease both;
}
.hero-title .accent { color: var(--accent3); }

.hero-sub {
  font-size: 0.92rem;
  color: var(--text2);
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 36px;
  animation: fadeUp 0.6s 0.2s ease both;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
  animation: fadeUp 0.6s 0.3s ease both;
}

.btn-primary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 24px var(--accent-glow);
}
.btn-primary:hover { background: var(--accent2); transform: translateY(-2px); box-shadow: 0 8px 36px rgba(59,130,246,0.45); }

.btn-secondary {
  padding: 13px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border2);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: border-color var(--transition), background var(--transition);
}
.btn-secondary:hover { border-color: var(--accent2); background: var(--accent-dim); }

.hero-stats { display: flex; align-items: center; gap: 24px; animation: fadeUp 0.6s 0.4s ease both; }
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-num { font-family: var(--font-head); font-size: 1.8rem; letter-spacing: 0.03em; color: var(--text); }
.stat-label { font-size: 0.72rem; color: var(--text3); font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; }
.stat-sep { width: 1px; height: 36px; background: var(--border2); }

.advantages, .products, .faq-section { padding: 100px 0; }
.advantages { background: var(--bg2); }
.products { background: var(--bg); }
.faq-section { background: var(--bg2); }

.section-header { display: flex; flex-direction: column; gap: 8px; margin-bottom: 48px; position: relative; }
.section-tag { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent2); }
.section-title { font-family: var(--font-head); font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: 0.03em; color: var(--text); }

.more-link {
  position: absolute;
  right: 0; bottom: 0;
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--text2);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--transition);
}
.more-link:hover { color: var(--accent3); }

.adv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }

.adv-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color var(--transition), transform var(--transition);
}
.adv-card:hover { border-color: rgba(37,99,235,0.35); transform: translateY(-3px); }

.adv-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius);
  background: var(--accent-dim);
  border: 1px solid rgba(37,99,235,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent3);
}

.adv-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.adv-card p { font-size: 0.84rem; color: var(--text2); line-height: 1.65; }

.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  transition: border-color var(--transition), transform var(--transition);
  overflow: hidden;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent2), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.product-card:hover::before { opacity: 1; }
.product-card:hover { border-color: rgba(37,99,235,0.35); transform: translateY(-4px); }
.product-card.featured { background: linear-gradient(135deg, var(--surface) 0%, rgba(37,99,235,0.07) 100%); border-color: rgba(37,99,235,0.25); }

.product-status { position: absolute; top: 20px; right: 20px; width: 8px; height: 8px; border-radius: 50%; }
.product-status.online { background: #22c55e; box-shadow: 0 0 8px rgba(34,197,94,0.6); animation: pulse-green 2s infinite; }
@keyframes pulse-green { 0%, 100% { box-shadow: 0 0 8px rgba(34,197,94,0.6); } 50% { box-shadow: 0 0 14px rgba(34,197,94,0.9); } }

.product-icon { width: 64px; height: 64px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.port-icon { background: rgba(37,99,235,0.12); color: var(--accent3); border: 1px solid rgba(37,99,235,0.25); }
.trigger-icon { background: rgba(99,102,241,0.12); color: #a5b4fc; border: 1px solid rgba(99,102,241,0.25); }
.demorgan-icon { background: rgba(14,165,233,0.12); color: #38bdf8; border: 1px solid rgba(14,165,233,0.25); }

.product-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.product-card p { font-size: 0.84rem; color: var(--text2); line-height: 1.65; margin-bottom: 18px; }
.product-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.product-tags span { padding: 3px 10px; border-radius: 20px; border: 1px solid var(--border2); font-size: 0.72rem; font-weight: 500; color: var(--text3); letter-spacing: 0.04em; }

.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color var(--transition); }
.faq-item.open { border-color: rgba(37,99,235,0.35); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 24px; background: none; border: none; color: var(--text); font-family: var(--font-body); font-size: 0.88rem; font-weight: 600; text-align: left; cursor: pointer; transition: color var(--transition); }
.faq-question:hover { color: var(--accent3); }
.faq-item.open .faq-question { color: var(--accent3); }
.faq-arrow { flex-shrink: 0; color: var(--text3); transition: transform var(--transition), color var(--transition); }
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--accent2); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer p { padding: 0 24px 20px; font-size: 0.84rem; color: var(--text2); line-height: 1.7; }

.footer { background: var(--bg); border-top: 1px solid var(--border); padding: 32px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-brand { display: flex; align-items: center; gap: 8px; font-family: var(--font-head); font-size: 1rem; letter-spacing: 0.06em; color: var(--text); }
.footer-copy { font-size: 0.78rem; color: var(--text3); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.78rem; color: var(--text3); text-decoration: none; transition: color var(--transition); }
.footer-links a:hover { color: var(--text2); }

@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

@media (max-width: 900px) {
  .products-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .more-link { position: static; margin-top: 8px; }
}
@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .navbar { padding: 0 20px; }
  .hero-content { padding: 100px 20px 60px; }
  .adv-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .footer-inner { flex-direction: column; text-align: center; }
}