:root {
  --bg: #0f0f12;
  --surface: #17171c;
  --surface-2: #1d1d24;
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --line: rgba(255,255,255,.08);
  --brand: #e31313;
  --brand-soft: rgba(227,19,19,.12);
  --accent: #ff4b4b;
  --shadow: 0 20px 60px rgba(0,0,0,.28);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background:
    radial-gradient(circle at top, rgba(227,19,19,.12), transparent 32%),
    linear-gradient(180deg, #0e0e11 0%, #131318 100%);
  color: var(--text);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.section { padding: 84px 0; }
.section-title { font-size: clamp(1.8rem, 2vw, 2.6rem); font-weight: 700; letter-spacing: -.02em; margin-bottom: 12px; }
.section-copy { max-width: 620px; color: var(--muted); margin: 0 auto 0 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: .82rem; text-transform: uppercase;
  letter-spacing: .18em; color: #ff8d8d; margin-bottom: 14px;
}
.eyebrow::before {
  content: ''; width: 34px; height: 1px; background: rgba(255,255,255,.22);
}
.site-header {
  position: sticky; top: 0; z-index: 1000; transition: transform .3s ease, opacity .3s ease, background .3s ease;
  background: rgba(15,15,18,.78); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255,255,255,.05);
}
.site-header.header-hidden { transform: translateY(-100%); opacity: 0; }
.brand-wrap { padding: 16px 0 10px; text-align: center; }
.brand-logo {
  width: 88px; margin: 0 auto 10px; filter: drop-shadow(0 10px 20px rgba(227,19,19,.18));
}
.brand-name { font-size: .82rem; letter-spacing: .22em; text-transform: uppercase; color: var(--muted); }
.site-nav { padding: 0 0 14px; }
.navbar-nav { gap: 6px; }
.nav-link {
  color: rgba(255,255,255,.82); font-size: .94rem; padding: .5rem 1rem !important; border-radius: 999px; transition: .25s ease;
}
.nav-item{
  margin-bottom: 5px;
}
.nav-link:hover, .nav-link.active { color: #fff; background: rgba(255,255,255,.05); }
.hero {
  position: relative; min-height: 76vh; display: flex; align-items: center;
  background:
    linear-gradient(rgba(8,8,10,.74), rgba(8,8,10,.78)),
    url('https://images.unsplash.com/photo-1556740749-887f6717d7e4?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
}
.hero::after {
  content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 50% 30%, rgba(227,19,19,.18), transparent 35%);
}
.hero .container { position: relative; z-index: 1; }
.hero-card {
max-width: 820px;
background: rgba(15,15,18,.52);
border: 1px solid rgba(255,255,255,.06);
border-radius: 28px;
padding: clamp(26px, 4vw, 42px);
box-shadow: var(--shadow);
}
.hero h1 {
  font-size: clamp(2rem, 4.3vw, 4.4rem); line-height: 1.02; letter-spacing: -.04em; margin: 0 0 16px;
}
.hero p {
  color: #d0d0d6; max-width: 560px; font-size: 1rem; margin-bottom: 24px;
}
.hero-mini { font-size: .82rem; text-transform: uppercase; letter-spacing: .16em; color: #ffc5c5; margin-bottom: 14px; }
.demo-links { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-brand, .btn-darkline {
  border: 0; border-radius: 999px; padding: 12px 20px; font-weight: 500; font-size: .96rem; transition: .25s ease;
}
.btn-brand {
  background: linear-gradient(135deg, var(--brand), #ff3a3a); color: #fff; box-shadow: 0 14px 30px rgba(227,19,19,.28);
}
.btn-brand:hover { transform: translateY(-2px); color: #fff; }
.btn-darkline {
  background: rgba(255,255,255,.04); color: #fff; border: 1px solid rgba(255,255,255,.08);
}
.btn-darkline:hover { background: rgba(255,255,255,.08); color: #fff; }
.service-card, .product-card, .contact-card, .about-card {
  height: 100%; background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02));
  border: 1px solid var(--line); border-radius: 5px; padding: 24px; box-shadow: var(--shadow);
}
.service-icon {
  width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 18px;
  background: var(--brand-soft); color: #ff6868; font-size: 1.25rem;
}
.service-card h3, .product-card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.muted { color: var(--muted); }
.product-card { overflow: hidden; padding: 0; }
.product-banner {
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  min-height: 220px; display: grid; place-items: center; border-bottom: 1px solid var(--line);
}
.product-banner img { object-fit: contain; }
.product-body { padding: 24px; }
.product-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.about-mini {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; margin-top: 30px;
}
.about-stat {
  padding: 18px 20px; border-radius: 18px; background: rgba(255,255,255,.03); border: 1px solid var(--line);
}
.about-stat strong { display: block; font-size: 1.3rem; }
.contact-list { display: grid; gap: 14px; margin-top: 16px; }
.contact-item {
  padding: 14px 16px; border-radius: 16px; background: rgba(255,255,255,.03); border: 1px solid var(--line);
}
.footer {
  border-top: 1px solid rgba(255,255,255,.06); padding: 22px 0 32px; color: var(--muted); font-size: .94rem;
}
.page-hero {
  padding: 90px 0 46px; background: radial-gradient(circle at top, rgba(227,19,19,.15), transparent 30%);
}
.page-hero h1 { font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -.03em; }
.content-card {
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02)); border: 1px solid var(--line);
  border-radius: 28px; padding: 28px;
}
.feature-list { display: grid; gap: 12px; }
.feature-item {
  padding: 14px 16px; border-radius: 16px; background: rgba(255,255,255,.03); border: 1px solid var(--line);
}
@media (max-width: 991.98px) {
  .site-nav { padding-bottom: 16px; }
  .hero { min-height: auto; padding: 90px 0; }
  .about-mini { grid-template-columns: 1fr; }
}
@media (max-width: 575.98px) {
  .brand-logo { width: 92px; }
  .hero-card { border-radius: 22px; }
  .product-banner { min-height: 180px; }
  .demo-links, .product-actions { flex-direction: column; }
  .btn-brand, .btn-darkline { width: 100%; text-align: center; }
}