:root{
  --bg: #0a7b74;
  --bg-dark: #086a64;
  --text: #0b0b0b;
  --white: #ffffff;
  --muted: #2b2b2b;
  --card-shadow: rgba(0,0,0,.15);
  --radius: 14px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);font-family:-apple-system,system-ui,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;color:#111}
img{max-width:100%;display:block}
.container{width:min(1100px,92%);margin-inline:auto}

.header{background:var(--bg);border-bottom:4px solid var(--bg-dark);position:sticky;top:0;z-index:10}
.head-row{display:flex;align-items:center;justify-content:space-between;padding:16px 0}

.logo{font-weight:900;letter-spacing:2px;color:#b6ffea;background:#064f4a;padding:8px 12px;border-radius:8px;box-shadow:0 2px 0 #043d38}
.logo span{color:#2cffb7}

.page-title{color:#0b1f1e;margin:28px 0 16px;font-size:clamp(22px,3vw,28px)}

.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:4px 0 18px}
.card{display:block;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 10px 24px var(--card-shadow)}
.card img{aspect-ratio:16/9;object-fit:cover;transition:transform .2s ease}
.card:hover img{transform:scale(1.03)}

.center{display:flex;justify-content:center;margin:6px 0 26px}

.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.9rem 1.2rem;border-radius:999px;font-weight:800;text-decoration:none;border:0;cursor:pointer;box-shadow:0 6px 16px rgba(0,0,0,.15)}
.btn-orange{background:#ff8a00;color:#fff}
.btn-pill{background:#1d1f20;color:#fff;border:1px solid #333}
.btn:hover{filter:brightness(1.05)}

.content{background:#f3fbf9;border:1px solid #d3f3eb;border-radius:var(--radius);padding:18px;line-height:1.7;color:#082c2a;margin-bottom:40px}
.content h2{margin:8px 0 6px;color:#052725}
.content p{margin:0 0 10px}

.footer{background:var(--bg-dark);color:#dff; padding:14px 0}
.footer p{margin:0;text-align:center;font-size:14px}

@media (max-width:900px){
  .cards{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:520px){
  .cards{grid-template-columns:1fr}
}