:root {
  --bg: #0a0d1a;
  --bg-2: #10152a;
  --card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.09);
  --text: #e8ebf5;
  --muted: #9aa3bf;
  --accent: #7c5cff;
  --accent-2: #22d3ee;
  --accent-3: #a3e635;
  --radius: 18px;
  --max: 1120px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* background glow */
.glow {
  position: fixed; inset: -20vh -10vw auto; height: 90vh; z-index: -1; pointer-events: none;
  background:
    radial-gradient(40% 50% at 20% 30%, rgba(124, 92, 255, 0.35), transparent 70%),
    radial-gradient(35% 45% at 80% 20%, rgba(34, 211, 238, 0.25), transparent 70%),
    radial-gradient(30% 40% at 60% 70%, rgba(163, 230, 53, 0.10), transparent 70%);
  filter: blur(20px);
}
.grid-bg {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
}

/* header */
header {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(10, 13, 26, 0.6);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.04em; }
.logo span {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.nav-links { display: flex; gap: 28px; align-items: center; font-size: 0.95rem; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.lang {
  border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.05em;
}
.lang:hover { border-color: var(--accent); }

/* hero */
.hero { padding: 120px 0 100px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); background: var(--card);
  border-radius: 999px; padding: 6px 14px; font-size: 0.85rem; color: var(--muted);
}
.badge i {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-3);
  box-shadow: 0 0 12px var(--accent-3);
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.4rem); line-height: 1.05; letter-spacing: -0.035em;
  font-weight: 800; margin: 24px 0; max-width: 900px;
}
.grad {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 60%, var(--accent-3) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { font-size: 1.2rem; color: var(--muted); max-width: 640px; }
.cta { display: flex; gap: 14px; margin-top: 40px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 26px; border-radius: 12px; font-weight: 600;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
  box-shadow: 0 8px 30px rgba(124, 92, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(124, 92, 255, 0.5); }
.btn-ghost { border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent-2); }

/* sections */
section { padding: 90px 0; }
.eyebrow {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent-2);
}
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); letter-spacing: -0.025em; line-height: 1.15; margin: 12px 0 16px; }
.lead { color: var(--muted); max-width: 640px; font-size: 1.08rem; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: rgba(124, 92, 255, 0.5); transform: translateY(-4px); }
.icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(124,92,255,.25), rgba(34,211,238,.2));
  border: 1px solid var(--border); margin-bottom: 20px;
}
.icon svg { width: 22px; height: 22px; stroke: var(--text); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 0.97rem; }

/* AI block */
.ai {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center;
  background: linear-gradient(135deg, rgba(124,92,255,.10), rgba(34,211,238,.06));
  border: 1px solid var(--border); border-radius: 28px; padding: 56px;
}
.ai ul { list-style: none; display: grid; gap: 16px; }
.ai li { display: flex; gap: 14px; align-items: flex-start; color: var(--muted); }
.ai li b { color: var(--text); display: block; }
.ai li::before {
  content: ""; flex: none; width: 10px; height: 10px; margin-top: 8px; border-radius: 3px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

/* contact */
.contact { text-align: center; }
.contact .lead { margin: 0 auto 32px; }
.mail { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; }
.mail:hover { color: var(--accent-2); }

/* footer */
footer { border-top: 1px solid var(--border); padding: 36px 0; color: var(--muted); font-size: 0.88rem; }
.foot { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.legal span { display: block; }

@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr; }
  .ai { grid-template-columns: 1fr; padding: 32px; gap: 32px; }
  .nav-links a:not(.lang) { display: none; }
  .hero { padding: 80px 0 60px; }
  section { padding: 64px 0; }
}

.flink { text-decoration: underline; text-underline-offset: 3px; }
.flink:hover { color: var(--text); }

/* legal page */
.page { padding: 90px 0; }
.page h1 { font-size: clamp(2rem, 4vw, 2.8rem); letter-spacing: -0.03em; margin-bottom: 32px; }
.dl { display: grid; grid-template-columns: 200px 1fr; gap: 14px 24px; max-width: 760px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.dl dt { color: var(--muted); }
.dl dd a:hover { color: var(--accent-2); }
@media (max-width: 600px) { .dl { grid-template-columns: 1fr; gap: 4px; } .dl dd { margin-bottom: 12px; } }

/* contact form */
.form { max-width: 640px; margin: 0 auto; display: grid; gap: 14px; text-align: left; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form input, .form textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--card);
  border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; resize: vertical;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--accent); }
.form button { justify-self: start; border: 0; cursor: pointer; font: inherit; font-weight: 600; }
.form button:disabled { opacity: .6; cursor: wait; }
.form .hp { position: absolute; left: -9999px; }
.status { min-height: 1.6em; color: var(--muted); }
.status.ok { color: var(--accent-3); }
.status.err { color: #f87171; }
@media (max-width: 600px) { .form .row { grid-template-columns: 1fr; } }