:root{
  --primary:#6bd3f4;
  --primary2:#aee7ff;
  --text:#0b2b33;
  --muted:#5b6b70;
  --card:#ffffff;
  --bg:#f4faff;
  --shadow:0 6px 18px rgba(0,0,0,.08);
  --radius:14px;
}

*{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;}
body{background:var(--bg);color:var(--text);}

/* Header */
header{
  background:var(--primary);
  padding:18px 14px;
  text-align:center;
  color:#fff;
}
header .brand{font-size:28px;font-weight:800;letter-spacing:.5px;}
header .tagline{margin-top:6px;font-size:15px;font-weight:600;opacity:.95}

/* Nav */
nav{
  background:var(--primary2);
  display:flex;
  justify-content:center;
  gap:14px;
  padding:12px 14px;
  flex-wrap:wrap;
  border-bottom:3px solid var(--primary);
}
nav a{
  color:#033b4a;
  font-weight:700;
  text-decoration:none;
  font-size:14px;
  padding:8px 10px;
  border-radius:10px;
  transition:.15s ease;
}
nav a:hover{background:var(--primary);color:#fff;}

/* Hero slider area */
.hero-wrapper{
  max-width:1100px;
  margin:22px auto 8px;
  padding:0 14px;
  position:relative;
}
.slider{
  width:100%;
  height:360px;
  overflow:hidden;
  border-radius:18px;
  box-shadow:var(--shadow);
  background:#dff5ff;
}
.slides{
  display:flex;
  width:400%;
  height:100%;
  transition:transform .6s ease;
}
.slides img{
  width:25%;
  height:100%;
  object-fit:cover;
  display:block;
}

/* Hero text overlay */
.hero-text{
  position:absolute;
  left:26px;
  bottom:26px;
  max-width:560px;
  background:rgba(0,0,0,.45);
  color:#fff;
  padding:18px 18px;
  border-radius:16px;
  backdrop-filter: blur(4px);
}
.hero-text h1{font-size:28px;line-height:1.2;}
.hero-text p{margin-top:10px;color:rgba(255,255,255,.92);line-height:1.6;}
.hero-text a{
  display:inline-block;
  margin-top:12px;
  background:var(--primary);
  color:#003645;
  font-weight:900;
  text-decoration:none;
  padding:10px 12px;
  border-radius:12px;
}
.hero-text a:hover{filter:brightness(.98);}

/* Sections */
section{
  max-width:1100px;
  margin:26px auto;
  padding:22px;
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
section h2{font-size:22px;margin-bottom:10px;}
section p{color:var(--muted);line-height:1.6;margin-top:8px;}

/* Grid + cards */
.grid{
  display:grid;
  grid-template-columns:repeat(4, minmax(0, 1fr));
  gap:16px;
  margin-top:16px;
}
.card{
  background:#fff;
  border-radius:16px;
  padding:16px;
  box-shadow:0 2px 10px rgba(0,0,0,.06);
  border:1px solid rgba(0,0,0,.05);
}
.card h3{margin-top:10px;font-size:18px;}
.card p{margin-top:8px;color:var(--muted);}
.card a{
  display:inline-block;
  margin-top:12px;
  font-weight:800;
  text-decoration:none;
  color:#035a70;
}
.card a:hover{text-decoration:underline;}

/* Badge */
.badge{
  display:inline-block;
  background:rgba(107,211,244,.25);
  color:#035a70;
  font-weight:800;
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
}

/* Footer */
footer{
  margin:28px 0 18px;
  text-align:center;
  color:#6c7c81;
  font-weight:600;
}

/* Responsive */
@media (max-width:1000px){
  .grid{grid-template-columns:repeat(2, minmax(0, 1fr));}
  .hero-text{max-width:520px;}
}
@media (max-width:640px){
  nav{gap:10px;}
  nav a{font-size:13px;padding:7px 9px;}
  .slider{height:280px;}
  .hero-text{left:14px;right:14px;max-width:none;}
  .hero-text h1{font-size:22px;}
  .grid{grid-template-columns:1fr;}
}