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

*{margin:0;padding:0;box-sizing:border-box}
:root{--ice:#e8f4fd;--frost:#d1ecf9;--glacier:#81d4fa;--deep-ice:#0288d1;--polar:#0a2540;--snow:#ffffff;--text:#1a3a52;--text-mid:#4a6a82;--text-light:#8aa0b2}

body{font-family:'Quicksand',sans-serif;background:var(--ice);color:var(--text);line-height:1.8}

header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(255,255,255,0.88);backdrop-filter:blur(16px);display:flex;align-items:center;justify-content:space-between;height:68px;padding:0 2.5rem;border-bottom:1px solid var(--frost)}

.logo{font-size:1.5rem;font-weight:700;color:var(--deep-ice);text-decoration:none}

nav{display:flex;gap:1.5rem;align-items:center}
nav a{color:var(--text-mid);text-decoration:none;font-size:0.9rem;font-weight:500;transition:color 0.2s}
nav a:hover{color:var(--deep-ice)}

.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:5px}
.hamburger span{display:block;width:24px;height:2px;background:var(--deep-ice);transition:0.3s}

.hero-frost{margin-top:68px;min-height:85vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:4rem 2rem;background:linear-gradient(180deg,var(--snow) 0%,var(--ice) 40%,var(--frost) 100%);position:relative}
.hero-frost::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--glacier),transparent)}

.hero-frost h1{font-size:3rem;font-weight:700;color:var(--polar);margin-bottom:1rem}
.hero-frost h1 span{color:var(--deep-ice)}
.hero-frost p{font-size:1.1rem;color:var(--text-mid);max-width:640px;margin:0 auto 2.5rem;font-weight:400}

.frost-chips{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.chip{background:var(--snow);border:1px solid var(--frost);border-radius:12px;padding:0.8rem 1.5rem;text-align:center;min-width:170px;box-shadow:0 2px 8px rgba(2,136,209,0.06)}
.chip strong{display:block;font-size:0.75rem;font-weight:700;color:var(--deep-ice);text-transform:uppercase;letter-spacing:1px;margin-bottom:0.2rem}
.chip span{font-size:0.85rem;color:var(--text-light);font-weight:400}

.game-arctic{padding:5rem 2rem;background:var(--snow)}
.game-arctic h2{font-size:1.8rem;font-weight:700;text-align:center;margin-bottom:0.5rem;color:var(--polar)}
.game-arctic .sub{text-align:center;color:var(--text-light);margin-bottom:2rem}
.arctic-frame{width:100%;max-width:980px;margin:0 auto;aspect-ratio:4/3;border-radius:20px;overflow:hidden;border:1px solid var(--frost);box-shadow:0 8px 40px rgba(2,136,209,0.08)}
.arctic-frame iframe{width:100%;height:100%;border:none}

.cryo-features{padding:5rem 2rem;background:var(--ice)}
.cryo-features h2{font-size:1.8rem;font-weight:700;text-align:center;margin-bottom:3rem;color:var(--polar)}
.cryo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;max-width:1100px;margin:0 auto}
.cryo-card{background:var(--snow);border-radius:16px;padding:2rem;text-align:center;border:1px solid var(--frost);transition:box-shadow 0.2s}
.cryo-card:hover{box-shadow:0 4px 20px rgba(2,136,209,0.1)}
.cryo-card .icon{font-size:2rem;margin-bottom:0.8rem}
.cryo-card h3{font-size:1rem;font-weight:600;color:var(--deep-ice);margin-bottom:0.5rem}
.cryo-card p{font-size:0.9rem;color:var(--text-light);font-weight:400}

.cryo-about{padding:4rem 2rem;background:var(--snow)}
.cryo-about .inner{max-width:800px;margin:0 auto;text-align:center}
.cryo-about h2{font-size:1.6rem;font-weight:700;margin-bottom:1.5rem;color:var(--polar)}
.cryo-about p{color:var(--text-mid);margin-bottom:1rem;font-weight:400}

.page-content{margin-top:88px;padding:2.5rem;max-width:840px;margin-left:auto;margin-right:auto;min-height:70vh}
.page-content h1{font-size:2.5rem;font-weight:700;margin-bottom:2rem;color:var(--polar)}
.page-content h2{font-size:1.2rem;font-weight:600;margin:2rem 0 0.8rem;color:var(--deep-ice)}
.page-content p,.page-content li{color:var(--text-mid);margin-bottom:1rem;font-size:0.95rem;font-weight:400}
.page-content ul{padding-left:1.5rem;margin-bottom:1.5rem}
.page-content a{color:var(--deep-ice)}

.play-frost{background:var(--frost);border-radius:12px;padding:1.5rem;margin:2rem auto;max-width:980px;color:var(--text-mid);font-size:0.9rem}
.play-frost strong{color:var(--deep-ice);font-weight:600}

footer{background:var(--polar);padding:3rem 2.5rem;text-align:center}
footer p{color:rgba(255,255,255,0.5);font-size:0.8rem;margin-bottom:0.4rem}
footer a{color:var(--glacier);text-decoration:none;margin:0 0.5rem;font-size:0.85rem}
footer a:hover{color:var(--snow)}
.footer-links{margin-bottom:1rem}

.age-overlay{position:fixed;inset:0;z-index:9999;background:rgba(10,37,64,0.7);display:flex;align-items:center;justify-content:center;backdrop-filter:blur(8px)}
.age-box{background:var(--snow);border-radius:20px;padding:2.5rem;text-align:center;max-width:420px;width:90%;box-shadow:0 20px 60px rgba(2,136,209,0.15)}
.age-box h2{color:var(--deep-ice);font-size:1.5rem;font-weight:700;margin-bottom:0.8rem}
.age-box p{color:var(--text-mid);margin-bottom:2rem;font-size:0.95rem;font-weight:400}
.age-box .btn-row{display:flex;gap:1rem;justify-content:center}
.age-box button{padding:0.75rem 2rem;border:none;border-radius:12px;font-family:'Quicksand',sans-serif;font-size:0.95rem;cursor:pointer;transition:0.2s;font-weight:600}
.age-box .btn-yes{background:var(--deep-ice);color:#fff}
.age-box .btn-yes:hover{background:#0277bd}
.age-box .btn-no{background:var(--frost);color:var(--text-mid)}
.age-box .btn-no:hover{background:#c1e0f0}

@media(max-width:768px){
  header{padding:0 1.5rem}
  nav{position:fixed;top:68px;left:0;width:100%;flex-direction:column;background:rgba(255,255,255,0.98);padding:1.5rem;gap:0.8rem;transform:translateY(-120%);transition:transform 0.3s;box-shadow:0 4px 20px rgba(0,0,0,0.05)}
  nav.open{transform:translateY(0)}
  .hamburger{display:flex}
  .hero-frost h1{font-size:2rem}
  .frost-chips{flex-direction:column;align-items:center}
  .cryo-grid{grid-template-columns:1fr}
  .arctic-frame{aspect-ratio:3/4;border-radius:12px}
}