:root{
  --bg:#0b1220;
  --bg-soft:#0f1830;
  --card:#131f3a;
  --card-2:#182749;
  --border:rgba(255,255,255,.08);
  --text:#e7ecf5;
  --muted:#9fb0cc;
  --accent:#3b82f6;
  --accent-2:#22d3ee;
  --accent-grad:linear-gradient(135deg,#3b82f6,#22d3ee);
  --success:#34d399;
  --danger:#f87171;
  --radius:16px;
  --shadow:0 20px 50px -20px rgba(0,0,0,.6);
  --maxw:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(59,130,246,.18), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(34,211,238,.12), transparent 55%),
    var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
main{display:block;min-height:60vh}
.accent-text{background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(12px);
  background:rgba(11,18,32,.72);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;letter-spacing:-.02em}
.logo-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:var(--accent-grad);color:#fff;box-shadow:0 8px 20px -8px rgba(59,130,246,.7);
}
.logo-mark svg{width:22px;height:22px}
.logo-accent{color:var(--accent-2)}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav a{
  padding:9px 15px;border-radius:10px;font-weight:500;color:var(--muted);
  transition:.2s;
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.active{color:var(--text)}
.main-nav a.nav-cta{
  background:var(--accent-grad);color:#fff;font-weight:600;margin-left:6px;
  box-shadow:0 10px 24px -10px rgba(59,130,246,.8);
}
.main-nav a.nav-cta:hover{filter:brightness(1.08)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* ---------- hero ---------- */
.hero{padding:80px 0 60px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;color:var(--accent-2);
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.25);
  padding:7px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.08;letter-spacing:-.03em;font-weight:800}
.hero p.lead{color:var(--muted);font-size:1.12rem;margin:20px 0 30px;max-width:520px}
.btn{
  display:inline-flex;align-items:center;gap:10px;font-weight:600;
  padding:14px 26px;border-radius:12px;transition:.2s;cursor:pointer;border:0;font-size:1rem;
}
.btn-primary{background:var(--accent-grad);color:#fff;box-shadow:0 14px 30px -12px rgba(59,130,246,.8)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07)}
.btn-ghost{background:rgba(255,255,255,.05);color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-card{
  background:linear-gradient(160deg,var(--card),var(--card-2));
  border:1px solid var(--border);border-radius:24px;padding:26px;box-shadow:var(--shadow);
}
.hero-card .row{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--border)}
.hero-card .row:last-child{border-bottom:0}
.hero-card .dot{width:10px;height:10px;border-radius:50%}
.dot.green{background:var(--success)} .dot.blue{background:var(--accent)} .dot.cyan{background:var(--accent-2)}
.hero-card .label{color:var(--muted);font-size:.92rem}
.hero-card .val{font-weight:700}
.float-chip{
  position:absolute;background:var(--card);border:1px solid var(--border);
  padding:10px 16px;border-radius:14px;font-weight:600;font-size:.9rem;box-shadow:var(--shadow);
}
.chip-1{top:-18px;right:-10px}
.chip-2{bottom:-16px;left:-14px}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section-head{max-width:640px;margin:0 auto 46px;text-align:center}
.section-head h2{font-size:clamp(1.8rem,3.5vw,2.6rem);letter-spacing:-.02em;font-weight:800}
.section-head p{color:var(--muted);margin-top:14px}

/* ---------- features / services grid ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:linear-gradient(160deg,var(--card),var(--card-2));
  border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:.25s;
}
.card:hover{transform:translateY(-5px);border-color:rgba(59,130,246,.4)}
.icon-badge{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(59,130,246,.14);color:var(--accent-2);border:1px solid rgba(59,130,246,.25);
}
.icon-badge svg{width:26px;height:26px}
.card h3{font-size:1.15rem;margin-bottom:10px;font-weight:700}
.card p{color:var(--muted);font-size:.97rem}
.price-tag{margin-top:16px;font-weight:700;color:var(--accent-2)}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat .num{font-size:2.4rem;font-weight:800;background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{color:var(--muted);font-size:.92rem;margin-top:6px}

/* ---------- steps ---------- */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px}
.step .n{
  counter-increment:step;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;background:var(--accent-grad);color:#fff;margin-bottom:16px;
}
.step .n::before{content:counter(step)}
.step h4{font-size:1.05rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.92rem}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.about-visual{
  background:linear-gradient(160deg,var(--card),var(--card-2));border:1px solid var(--border);
  border-radius:24px;padding:30px;box-shadow:var(--shadow);
}
.about-visual .big{font-size:3rem;font-weight:800;background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.about-list{list-style:none;margin-top:22px;display:grid;gap:14px}
.about-list li{display:flex;gap:12px;align-items:flex-start;color:var(--muted)}
.about-list .check{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(52,211,153,.15);color:var(--success);font-weight:700;
}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(135deg,rgba(59,130,246,.2),rgba(34,211,238,.14));
  border:1px solid rgba(59,130,246,.3);border-radius:24px;padding:46px;text-align:center;
}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;letter-spacing:-.02em}
.cta-band p{color:var(--muted);margin:14px auto 26px;max-width:520px}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start}
.info-card{background:linear-gradient(160deg,var(--card),var(--card-2));border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.info-item{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--border)}
.info-item:last-child{border-bottom:0}
.info-item .ic{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(59,130,246,.14);color:var(--accent-2);flex:0 0 auto}
.info-item h4{font-size:.95rem}
.info-item p{color:var(--muted);font-size:.92rem}

.form-card{background:linear-gradient(160deg,var(--card),var(--card-2));border:1px solid var(--border);border-radius:var(--radius);padding:30px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:18px}
.field label{display:block;font-size:.88rem;font-weight:600;margin-bottom:8px}
.field label .req{color:var(--danger)}
.field input,.field select,.field textarea{
  width:100%;background:rgba(11,18,32,.6);border:1px solid var(--border);color:var(--text);
  padding:13px 15px;border-radius:11px;font-family:inherit;font-size:.98rem;transition:.2s;
}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--accent);box-shadow:0 0 0 3px rgba(59,130,246,.2);
}
.field .err{color:var(--danger);font-size:.82rem;margin-top:6px;display:none}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--danger)}
.field.invalid .err{display:block}
.form-note{font-size:.85rem;color:var(--muted);margin-top:14px}

.alert{padding:14px 18px;border-radius:12px;font-weight:500;margin-bottom:20px;display:none}
.alert.show{display:block}
.alert.success{background:rgba(52,211,153,.14);border:1px solid rgba(52,211,153,.4);color:var(--success)}
.alert.error{background:rgba(248,113,113,.14);border:1px solid rgba(248,113,113,.4);color:var(--danger)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--border);background:rgba(11,18,32,.6);margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;padding:54px 0 30px}
.footer-tag{color:var(--muted);margin-top:14px;max-width:280px;font-size:.95rem}
.footer-logo{margin-bottom:4px}
.site-footer h4{font-size:.95rem;margin-bottom:16px;letter-spacing:.02em}
.site-footer ul{list-style:none;display:grid;gap:10px}
.site-footer ul a,.footer-contact li{color:var(--muted);font-size:.95rem}
.site-footer ul a:hover{color:var(--accent-2)}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;color:var(--muted);font-size:.9rem;text-align:center}

/* ---------- back to top ---------- */
.back-to-top{
  position:fixed;bottom:24px;right:24px;width:46px;height:46px;border-radius:12px;
  background:var(--accent-grad);color:#fff;display:grid;place-items:center;font-size:1.2rem;
  opacity:0;pointer-events:none;transition:.25s;z-index:40;box-shadow:var(--shadow);
}
.back-to-top.show{opacity:1;pointer-events:auto}

/* ---------- page hero (inner pages) ---------- */
.page-hero{padding:64px 0 30px;text-align:center}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);font-weight:800;letter-spacing:-.03em}
.page-hero p{color:var(--muted);max-width:560px;margin:14px auto 0;font-size:1.08rem}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .hero-grid,.about-grid,.contact-grid,.form-row,.grid-3,.grid-2{grid-template-columns:1fr}
  .stats,.steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero{padding:54px 0 40px}
}
@media(max-width:640px){
  .main-nav{
    position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;gap:6px;
    background:rgba(11,18,32,.98);border-bottom:1px solid var(--border);padding:14px 22px 20px;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s;
  }
  .main-nav.open{transform:none;opacity:1;pointer-events:auto}
  .main-nav a{padding:12px 14px}
  .main-nav a.nav-cta{margin-left:0;text-align:center}
  .nav-toggle{display:flex}
  .stats,.steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .float-chip{display:none}
  .cta-band{padding:34px 22px}
}