:root{
  --bg:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --border:#e5e7eb;
  --brand:#0f766e;
  --brand2:#115e59;
  --alt:#f9fafb;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
}

.container{
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 18px;
}

.header{
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 14px;
  padding: 14px 0;
}

.brand{
  font-weight:700;
  letter-spacing:0.2px;
}

.nav a{
  color:var(--text);
  text-decoration:none;
  margin-left: 14px;
  font-size: 14px;
  white-space: nowrap;
}
.nav a:hover{color:var(--brand)}

.hero{
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #ecfeff, #ffffff);
}
.hero h1{
  margin:0 0 10px;
  font-size: 40px;
  line-height:1.1;
}
.lead{
  max-width: 70ch;
  color: var(--muted);
  margin: 0 0 10px;
  font-size: 18px;
}
.tagline{
  margin: 0 0 18px;
  color: var(--text);
  font-size: 14px;
}

.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-block;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--brand);
  color:white;
  text-decoration:none;
  font-weight:600;
  border: 1px solid var(--brand);
}
.btn:hover{background:var(--brand2);border-color:var(--brand2)}
.btn-outline{
  background: transparent;
  color: var(--brand);
  border: 1px solid var(--brand);
}
.btn-outline:hover{background:#ccfbf1}

.section{
  padding: 42px 0;
}
.section.alt{
  background: var(--alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.card{
  background:white;
  border:1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.card h3{margin:0 0 8px}
.card p{margin:0;color:var(--muted)}

.contact-box{
  margin-top: 14px;
  border:1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  background: white;
}

.footer{
  padding: 22px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px){
  .hero h1{font-size: 32px}
}

@media (max-width: 820px){
  .grid{grid-template-columns: 1fr}
  .nav a{margin-left: 10px}
  .header-inner{flex-direction: column; align-items:flex-start;}
}