@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@400;500;600;700&family=Poppins:wght@300;400;500;600;700&display=swap');

*{margin:0;padding:0;box-sizing:border-box}
:root{--ocean:#0077b6;--aqua:#00b4d8;--sky:#90e0ef;--sand:#fdfcdc;--deep:#023047;--white:#fff;--text:#2d3748}
body{font-family:'Poppins',sans-serif;background:var(--sand);color:var(--text);line-height:1.75;overflow-x:hidden}
h1,h2,h3{font-family:'Quicksand',sans-serif;font-weight:700}
a{text-decoration:none;color:inherit;transition:.3s}

.nav-bar{position:fixed;top:0;width:100%;z-index:999;background:var(--white);box-shadow:0 2px 20px rgba(0,119,182,.1);height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 2rem}
.nav-brand{font-family:'Quicksand',sans-serif;font-weight:700;font-size:1.5rem;color:var(--ocean);display:flex;align-items:center;gap:8px}
.nav-brand svg{width:32px;height:32px}
.nav-list{list-style:none;display:flex;gap:1.8rem}
.nav-list a{font-weight:500;font-size:.9rem;color:var(--deep);padding:4px 0}
.nav-list a:hover{color:var(--aqua)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ocean);margin:5px 0;transition:.3s;border-radius:2px}

.wave-hero{background:linear-gradient(180deg,var(--deep) 0%,var(--ocean) 60%,var(--aqua) 100%);padding:150px 2rem 100px;text-align:center;position:relative}
.wave-hero::after{content:'';position:absolute;bottom:-1px;left:0;width:100%;height:80px;background:var(--sand);clip-path:ellipse(55% 100% at 50% 100%)}
.wave-hero h1{font-size:3rem;color:var(--white);margin-bottom:1rem}
.wave-hero p{font-size:1.1rem;color:rgba(255,255,255,.85);max-width:700px;margin:0 auto 2rem}
.wave-tags{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}
.wave-tag{background:rgba(255,255,255,.15);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.3);color:var(--white);padding:.5rem 1.2rem;border-radius:30px;font-size:.85rem;font-weight:600}

.ocean-game{padding:4rem 2rem;text-align:center}
.ocean-game h2{font-size:2rem;color:var(--ocean);margin-bottom:1.5rem}
.ocean-frame{max-width:770px;margin:0 auto;border-radius:16px;overflow:hidden;border:3px solid var(--aqua);box-shadow:0 8px 30px rgba(0,119,182,.15)}
.ocean-frame iframe{width:100%;height:620px;border:none;display:block}

.wave-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:2rem;padding:3rem 2rem;max-width:1300px;margin:0 auto}
.w-card{background:var(--white);border-radius:16px;padding:2rem;box-shadow:0 4px 16px rgba(0,119,182,.08);border-top:4px solid var(--aqua);transition:transform .3s,box-shadow .3s}
.w-card:hover{transform:translateY(-5px);box-shadow:0 8px 30px rgba(0,119,182,.15)}
.w-card .w-icon{font-size:2.5rem;margin-bottom:.8rem}
.w-card h3{color:var(--ocean);font-size:1.05rem;margin-bottom:.6rem}
.w-card p{font-size:.9rem;opacity:.8}

.ocean-strip{background:linear-gradient(90deg,var(--ocean),var(--aqua));padding:1.5rem 2rem;display:flex;justify-content:center;gap:2.5rem;flex-wrap:wrap}
.ocean-strip span{color:var(--white);font-family:'Quicksand',sans-serif;font-weight:700;font-size:.9rem}

.body-text{padding:4rem 2rem;max-width:900px;margin:0 auto}
.body-text h2{font-size:1.7rem;color:var(--ocean);margin-bottom:1rem}
.body-text p{margin-bottom:1rem;opacity:.85}
.body-text ul{padding-left:1.5rem;margin-bottom:1rem}
.body-text li{margin-bottom:.4rem}

.foot{background:var(--deep);padding:3rem 2rem;text-align:center}
.foot-nav{display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:center;margin-bottom:1rem}
.foot-nav a{color:var(--sky);font-weight:500;font-size:.9rem}
.foot-nav a:hover{color:var(--aqua)}
.foot small{color:rgba(144,224,239,.3);font-size:.8rem;display:block}

.age-overlay{position:fixed;inset:0;background:rgba(2,48,71,.96);z-index:9999;display:flex;align-items:center;justify-content:center}
.age-overlay.hidden{display:none}
.age-box{background:var(--white);border-radius:20px;padding:2.5rem;text-align:center;max-width:400px;width:90%;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.age-box h2{font-family:'Quicksand',sans-serif;color:var(--ocean);font-size:1.4rem;margin-bottom:.8rem}
.age-box p{margin-bottom:1.5rem;font-size:.95rem;color:var(--text);opacity:.8}
.age-box .btns{display:flex;gap:1rem;justify-content:center}
.age-box button{padding:.7rem 2rem;border:none;border-radius:12px;font-family:'Quicksand',sans-serif;font-weight:700;font-size:.95rem;cursor:pointer;transition:.3s}
.btn-yes{background:linear-gradient(135deg,var(--ocean),var(--aqua));color:var(--white)}
.btn-yes:hover{transform:scale(1.05)}
.btn-no{background:#f5f5f5;color:var(--text);border:1px solid #ddd!important}
.btn-no:hover{background:#fee2e2}

.page-banner{padding:130px 2rem 50px;background:linear-gradient(180deg,var(--deep),var(--ocean));text-align:center}
.page-banner h1{font-size:2.5rem;color:var(--white)}

@media(max-width:768px){
  .nav-list{display:none;position:absolute;top:64px;left:0;width:100%;flex-direction:column;background:var(--white);padding:1.5rem 2rem;gap:1rem;box-shadow:0 4px 12px rgba(0,0,0,.1)}
  .nav-list.active{display:flex}
  .nav-toggle{display:block}
  .wave-hero h1{font-size:2rem}
  .wave-hero{padding:120px 1.5rem 80px}
  .ocean-frame iframe{height:400px}
}
@media(max-width:480px){
  .wave-hero h1{font-size:1.6rem}
  .ocean-frame iframe{height:300px}
  .wave-tags{flex-direction:column;align-items:center}
}