* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: #0a0a0a;
  color: #fff;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(10,10,10,.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.header-inner { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.logo { font-size: 28px; font-weight: 800; letter-spacing: 5px; }
.nav { display: flex; gap: 28px; color: #cfcfcf; font-size: 15px; }
.nav a:hover { color: #fff; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; border-radius: 18px;
  padding: 14px 22px;
  background: #fff; color: #111;
  font-weight: 700; cursor: pointer;
  transition: transform .2s ease, opacity .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.small { padding: 10px 16px; font-size: 14px; }
.btn.outline { background: rgba(255,255,255,.08); color: #fff; border: 1px solid rgba(255,255,255,.18); }
.menu-btn { display: none; background: none; color: #fff; border: 0; font-size: 28px; }
.hero {
  min-height: 650px;
  display: flex; align-items: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(37,99,235,.35), transparent 32%),
    radial-gradient(circle at 80% 80%, rgba(14,165,233,.16), transparent 30%),
    #0a0a0a;
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; padding: 80px 0; }
.tag { display: inline-block; padding: 9px 15px; border: 1px solid rgba(255,255,255,.16); border-radius: 999px; color: #d4d4d4; margin-bottom: 22px; }
h1 { font-size: clamp(42px, 6vw, 72px); line-height: .98; margin: 0 0 24px; letter-spacing: -2px; }
.hero-text p, .section-subtitle, .about-grid p, .contact-box p { color: #c9c9c9; font-size: 18px; line-height: 1.7; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 32px; }
.hero-card, .contact-box {
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.08);
  border-radius: 34px;
  box-shadow: 0 30px 80px rgba(0,0,0,.35);
}
.hero-card { padding: 34px; }
.icon { font-size: 48px; margin-bottom: 24px; }
.hero-card h2 { font-size: 30px; line-height: 1.15; margin: 0 0 16px; }
.hero-card p { color: #c9c9c9; line-height: 1.7; }
.mini-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 26px; }
.mini-cards div { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.1); padding: 20px; border-radius: 24px; }
.mini-cards span { display: block; font-size: 28px; margin-bottom: 10px; }
.section { padding: 84px 0; }
.section h2 { font-size: 42px; margin: 0 0 16px; letter-spacing: -1px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 34px; }
.card, .benefits div {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 24px;
  padding: 22px;
  font-weight: 600;
}
.muted { background: rgba(255,255,255,.03); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.benefits { display: grid; gap: 12px; }
.contact-box { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; padding: 36px; }
.contact-list { margin-top: 26px; }
.form { background: #080808; border-radius: 26px; padding: 26px; display: grid; gap: 14px; }
.form h3 { margin: 0 0 6px; font-size: 24px; }
input, textarea {
  width: 100%; border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06); color: #fff;
  border-radius: 16px; padding: 15px 16px;
  font: inherit; outline: none;
}
textarea { min-height: 120px; resize: vertical; }
input:focus, textarea:focus { border-color: rgba(255,255,255,.36); }
.form-note { margin: 0; font-size: 14px !important; color: #d7d7d7 !important; }
.footer { border-top: 1px solid rgba(255,255,255,.1); padding: 28px 0; color: #aaa; text-align: center; }
@media (max-width: 820px) {
  .nav, .header .btn.small { display: none; }
  .menu-btn { display: block; }
  .nav.open {
    display: flex; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; padding: 20px 24px; background: #0a0a0a;
    border-bottom: 1px solid rgba(255,255,255,.1);
  }
  .hero-grid, .about-grid, .contact-box { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .hero-grid { padding: 52px 0; }
  .section { padding: 58px 0; }
}