:root{
  --blue-bg:#c8e5f2;
  --blue-deep:#225075;
  --cream:#ffe8c8;
  --text:#233142;
  --text-soft:#42576a;
  --white:#ffffff;
  --shadow:0 10px 30px rgba(0,0,0,0.08);
  font-family:'Nunito',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:#f3f6f9;color:var(--text);line-height:1.5}
.container{max-width:960px;margin:0 auto;padding:20px 16px}

.site-header{
  background:var(--blue-bg);
  text-align:center;
  padding:30px 20px 20px;
  border-bottom:4px solid var(--blue-deep);
}
.header-title{
  font-size:42px;
  font-weight:800;
  color:var(--blue-deep);
  margin:0;
}
.header-subtitle{
  font-size:22px;
  font-weight:500;
  color:var(--blue-deep);
  margin:10px 0 25px;
}
.hero-visual img{
  width:260px;
  max-width:80%;
  border-radius:18px;
  box-shadow:var(--shadow);
}

.intro{background:#ffffff;text-align:center;padding:32px 16px 24px;}
.intro h2{color:var(--blue-deep);}
.intro p{color:var(--text-soft);}

.section-box{padding:10px 0 24px;}
.section-box.light{background:#ffffff;}
.section-box.blue{background:var(--blue-bg);border-top:4px solid var(--cream);border-bottom:4px solid var(--cream);}
.section-box h2{text-align:center;color:var(--blue-deep);margin-bottom:12px;}

.cols{display:flex;gap:24px;margin-top:8px;flex-wrap:wrap;}
.col{
  flex:1 1 280px;
  background:#ffffff;
  border-radius:18px;
  padding:16px 18px;
  box-shadow:var(--shadow);
}
.col h3{text-align:center;color:var(--blue-deep);font-size:14px;letter-spacing:0.12em;}
.col ul{padding-left:1.1em;margin:0;color:var(--text-soft);}
.col li{margin-bottom:10px;font-size:15px;}

.site-footer{
  background:#e0edf5;
  padding:30px 0;
  text-align:center;
  color:var(--text-soft);
}
.footer-title{
  font-size:28px;
  margin:0 0 10px;
  color:var(--blue-deep);
}
.footer-contacts{
  font-size:18px;
  line-height:1.6;
}
.footer-contacts a{
  color:var(--blue-deep);
  text-decoration:none;
}
.footer-copy{
  margin-top:20px;
  font-size:14px;
  opacity:0.8;
}