:root {
  --bg: #050a1f;
  --bg-2: #0a1230;
  --card: #0f1a3d;
  --line: #1c2c5c;
  --text: #eef3ff;
  --muted: #a9b6d6;
  --blue: #1aa3ff;
  --blue-2: #0b6bff;
  --radius: 16px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); }
.wrap { width: min(1100px, 100% - 32px); margin-inline: auto; }

/* Header */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: rgba(5, 10, 31, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 0; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 700; font-size: 1.1rem; }
.brand img { width: 46px; height: 46px; border-radius: 50%; }
nav { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
nav a { color: var(--muted); text-decoration: none; padding: 8px 12px; border-radius: 10px; font-weight: 600; font-size: .95rem; }
nav a:hover, nav a.active { color: var(--text); background: var(--bg-2); }
nav a.cta { background: linear-gradient(135deg, var(--blue), var(--blue-2)); color: #fff; }

/* Buttons */
.btn {
  display: inline-block; border: 0; cursor: pointer; text-decoration: none;
  padding: 13px 24px; border-radius: 12px; font-weight: 700; font-size: 1rem;
  background: linear-gradient(135deg, var(--blue), var(--blue-2)); color: #fff;
}
.btn:hover { filter: brightness(1.1); }
.btn.ghost { background: transparent; border: 2px solid var(--blue); color: var(--text); }

/* Hero */
.hero { padding: 72px 0 56px; background: radial-gradient(900px 400px at 80% -10%, rgba(26,163,255,.25), transparent), var(--bg); }
.hero .wrap { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.15; margin: 0 0 16px; }
.hero h1 span { color: var(--blue); }
.hero p { color: var(--muted); font-size: 1.15rem; margin: 0 0 28px; max-width: 560px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero img.logo-big { width: min(340px, 80%); margin-inline: auto; border-radius: 50%; box-shadow: 0 0 80px rgba(26,163,255,.35); }
.page-hero { padding: 56px 0 32px; text-align: center; background: radial-gradient(800px 300px at 50% -20%, rgba(26,163,255,.25), transparent), var(--bg); }
.page-hero h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin: 0 0 12px; }
.page-hero p { color: var(--muted); max-width: 680px; margin: 0 auto 8px; font-size: 1.1rem; }

/* Sections */
section { padding: 64px 0; }
section.alt { background: var(--bg-2); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); margin: 0 0 10px; }
.section-head p { color: var(--muted); margin: 0; }
.grid { display: grid; gap: 20px; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); }
.card .tag { display: inline-block; margin-bottom: 12px; font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--blue); font-weight: 700; }
.step-num { width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg, var(--blue), var(--blue-2)); display: grid; place-items: center; font-weight: 800; margin-bottom: 14px; }
.about { max-width: 760px; margin-inline: auto; text-align: center; color: var(--muted); font-size: 1.1rem; }

/* Products */
.product { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.product .pic { aspect-ratio: 4 / 3; background: var(--bg-2); display: grid; place-items: center; font-size: 3rem; color: var(--blue); font-weight: 800; overflow: hidden; }
.product .pic img { width: 100%; height: 100%; object-fit: cover; }
.product .body { padding: 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product .price { font-size: 1.3rem; font-weight: 800; color: var(--blue); }
.product .body .btn { margin-top: auto; text-align: center; }
.empty { text-align: center; color: var(--muted); }

/* Forms */
.form-card { max-width: 720px; margin-inline: auto; }
form { display: grid; gap: 14px; }
form .row { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
label { display: grid; gap: 6px; font-weight: 600; font-size: .92rem; }
input, select, textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg); color: var(--text);
  font: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--blue); border-color: transparent; }
textarea { min-height: 120px; resize: vertical; }
.hp { position: absolute; left: -9999px; }
.status { padding: 12px 14px; border-radius: 10px; display: none; font-weight: 600; }
.status.ok { display: block; background: rgba(40,200,120,.15); color: #6ff0b0; }
.status.err { display: block; background: rgba(255,90,90,.15); color: #ff9c9c; }

/* Contact */
.contact-list { display: grid; gap: 16px; grid-template-columns: repeat(3, 1fr); }
.contact-list .card h3 { font-size: 1rem; color: var(--blue); }
.contact-list .card a, .contact-list .card p { color: var(--text); overflow-wrap: anywhere; }

footer.site { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); font-size: .9rem; text-align: center; }
footer.site p { margin: 6px 0; }

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; text-align: center; }
  .hero p { margin-inline: auto; }
  .hero .actions { justify-content: center; }
  .hero img.logo-big { order: -1; width: 200px; }
  .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid.cols-3, .contact-list { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .grid.cols-4 { grid-template-columns: 1fr; }
  form .row { grid-template-columns: 1fr; }
  nav a { padding: 6px 9px; font-size: .88rem; }
}