:root {
  --brand: #2E6AFF;
  --brand2: #111827;
  --accent: #00D1B2;
  --text: #0f172a;
  --muted: #64748b;
  --bg: #ffffff;
  --bgalt: #f6f7fb;
  --card: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(2, 6, 23, 0.08);
}
* { box-sizing: border-box; }
html,body { margin:0; padding:0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif; color:var(--text); background:var(--bg); }
img { max-width:100%; display:block; }
.container { width:min(1100px, 90%); margin-inline:auto; }
.site-header { position:sticky; top:0; backdrop-filter:saturate(180%) blur(6px); background:rgba(255,255,255,.7); z-index:1000; border-bottom:1px solid rgba(0,0,0,.05);}
.nav { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:14px 0; }
.brand { display:flex; align-items:center; gap:10px; font-weight:700; color:var(--brand2); text-decoration:none; }
.logo { width:30px; height:30px; }
.menu { display:flex; align-items:center; gap:18px; }
.menu a { color:var(--brand2); text-decoration:none; font-weight:600; }
.btn { background:linear-gradient(135deg, var(--brand), #4F46E5); color:white; padding:12px 18px; border-radius:10px; text-decoration:none; font-weight:700; box-shadow:var(--shadow); display:inline-block; }
.btn--sm { padding:9px 14px; border-radius:8px; }
.btn--ghost { background:transparent; color:var(--brand); border:2px solid var(--brand); }
.btn--block { display:block; width:100%; text-align:center; }
.burger { display:none; background:none; border:0; cursor:pointer; }
.burger span { display:block; width:24px; height:2px; background:#111; margin:5px 0; }
.hero { background: radial-gradient(1200px 500px at 20% -10%, rgba(46,106,255,.15), transparent), linear-gradient(180deg,#fff, #f9fbff 60%, #fff); padding:70px 0 30px; }
.grid2 { display:grid; grid-template-columns: 1.2fr 0.8fr; gap:36px; align-items:center; }
h1 { font-size: clamp(28px, 5vw, 44px); line-height:1.1; margin:0 0 12px; }
.lead { font-size: clamp(16px, 2.2vw, 19px); color:var(--muted); margin:0 0 16px; }
.cta { display:flex; gap:12px; flex-wrap:wrap; margin:10px 0 12px; }
.proof { display:flex; gap:16px; flex-wrap:wrap; padding:0; margin:6px 0 0; list-style:none; color:var(--muted); }
.card { background:var(--card); border-radius:var(--radius); padding:22px; box-shadow:var(--shadow); }
.promo h3 { margin:6px 0 8px; }
.promo ul { margin:0 0 14px 18px; }
.price { font-weight:900; font-size:28px; margin:8px 0 12px; }
.price span { font-size:14px; color:var(--muted); margin-right:6px; }
.small { font-size:14px; color:var(--muted); }
.section { padding:56px 0; }
.alt { background:var(--bgalt); }
.cards { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap:18px; }
.cards.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.card.small p { margin:6px 0 0; }
.steps { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap:14px; counter-reset: step; list-style:none; padding:0; }
.steps li { background:var(--card); border-left:4px solid var(--brand); padding:16px; border-radius:10px; box-shadow:var(--shadow); }
.pricecards .card { position:relative; }
.pricecards .featured { border:2px solid var(--brand); transform:translateY(-2px); }
.big { font-weight:900; font-size:30px; margin:8px 0; }
.features { margin:0; padding:0 0 0 18px; }
.center { text-align:center; }
.contact .grid2 { align-items:start; }
.form label { display:block; font-weight:700; margin:8px 0 6px; }
.form input, .form textarea { width:100%; padding:10px 12px; border:1px solid #E5E7EB; border-radius:10px; font:inherit; }
.contactlist { list-style:none; padding:0; margin:14px 0; }
.site-footer { padding:22px 0; border-top:1px solid rgba(0,0,0,.06); }
.site-footer .container { display:flex; justify-content:space-between; align-items:center; gap:12px; }
.footnav a { color:var(--muted); margin-left:14px; text-decoration:none; }
details { background:var(--card); padding:14px 16px; border-radius:10px; margin:10px 0; box-shadow:var(--shadow); }
details summary { cursor:pointer; font-weight:700; }
@media (max-width: 900px) {
  .grid2 { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .menu { display:none; position:absolute; top:60px; right:5%; background:#fff; padding:12px; border-radius:12px; box-shadow:var(--shadow); flex-direction:column; gap:12px; min-width:220px; }
  .burger { display:block; }
}
@media (max-width: 560px) {
  .cards, .cards.three, .steps { grid-template-columns: 1fr; }
}