*{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#f3f6f8;
  --card:#ffffff;
  --text:#0e1116;
  --muted:#4b5563;
  --border:#dde5ea;

  --accent:#1aa3a3;
  --accent2:#5b5fd9;
  --accent3:#0f766e;

  --shadow:rgba(15,23,42,.14);
}

body{
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  line-height:1.65;
  color:var(--text);
  background:var(--bg);
}

h1,h2,h3,h4{
  font-family: Inter, system-ui, -apple-system, Arial, sans-serif;
  letter-spacing:-.01em;
}

a{text-decoration:none;color:inherit}
.container{max-width:1140px;margin:0 auto;padding:0 16px}

.site-header{
  background:rgba(255,255,255,.9);
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:40;
}

.header-content{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:14px 16px;
}

.logo{
  font-weight:900;
  font-size:18px;
}

.logo span{
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;
  color:transparent;
}

.main-nav a{
  margin:0 8px;
  font-size:14px;
  opacity:.9;
}

.main-nav a.active{
  border-bottom:2px solid var(--accent);
}

.header-phone{
  font-weight:700;
  font-size:14px;
  color:var(--accent3);
}

.section{padding:46px 0}
.section.soft{background:#eef4f7}
.section h2{font-size:24px;margin-bottom:12px}
.section-intro{max-width:760px;margin-bottom:24px;color:var(--muted)}

.hero{
  padding:56px 0 40px;
  background:
    radial-gradient(800px 400px at 10% 10%, rgba(26,163,163,.18), transparent),
    radial-gradient(700px 350px at 90% 20%, rgba(91,95,217,.18), transparent),
    linear-gradient(135deg,#eef6f8,#f3f6f8);
}

.hero-grid{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:28px;
}

.hero h1{font-size:34px;margin-bottom:14px}
.hero p{color:var(--muted);margin-bottom:16px}

.hero-badges{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  font-size:12px;
}

.hero-badges div{
  background:#fff;
  border:1px solid var(--border);
  padding:6px 12px;
  border-radius:999px;
}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:0 18px 34px var(--shadow);
}

.hero-form{padding:18px}
.hero-form h3{font-size:18px;margin-bottom:6px}
.hero-form .hint{font-size:13px;color:var(--muted);margin-bottom:14px}

.form-row{display:grid;gap:10px}

label{font-size:13px;color:#1f2937}

input,textarea,select{
  width:100%;
  padding:10px;
  border-radius:12px;
  border:1px solid var(--border);
  font-size:14px;
}

input:focus,textarea:focus,select:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(26,163,163,.18);
  outline:none;
}

.checkbox-row{
  display:flex;
  gap:10px;
  font-size:12px;
  color:var(--muted);
}

.btn{
  display:inline-flex;
  justify-content:center;
  align-items:center;
  padding:10px 18px;
  border-radius:999px;
  font-size:14px;
  cursor:pointer;
  border:none;
}

.btn.primary{
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  color:#fff;
}

.btn.secondary{
  background:#0f172a;
  color:#fff;
}

.btn.full{width:100%}
.btn.small{font-size:13px}

.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}

.feature{
  background:#fff;
  border:1px solid var(--border);
  padding:16px;
  border-radius:16px;
}

.feature h3{margin-bottom:6px}

.pricing-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}

.price-card{
  border:1px solid var(--border);
  border-radius:18px;
  padding:20px;
  background:#fff;
}

.price-card.hot{
  box-shadow:0 20px 40px rgba(26,163,163,.18);
  border-color:rgba(26,163,163,.5);
}

.price{font-size:26px;font-weight:900}

.ul{list-style:none;margin:12px 0}
.ul li{margin-bottom:6px;padding-left:12px;position:relative}
.ul li:before{content:"•";position:absolute;left:0;color:var(--accent)}

.site-footer{
  background:#020617;
  color:#94a3b8;
  margin-top:40px;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.2fr 1fr 1fr;
  gap:24px;
  padding:32px 16px;
}

.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:12px;
  text-align:center;
  font-size:12px;
}

@media(max-width:900px){
  .hero-grid,.grid-3,.pricing-grid{grid-template-columns:1fr}
  .main-nav{display:none}
}