@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

*{margin:0;padding:0;box-sizing:border-box}
:root{--teal:#008080;--teal-dark:#006666;--orange:#ff8c42;--orange-light:#ffa96b;--bg:#f7f9fa;--bg-dark:#0f1923;--white:#fff;--text:#1a2b3c;--text-mid:#5a6b7c;--text-light:#8a9bac}

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

header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:var(--bg-dark);display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 2rem}
.logo{font-size:1.4rem;font-weight:800;color:var(--teal);text-decoration:none;letter-spacing:-0.5px}
.logo span{color:var(--orange)}
nav{display:flex;gap:1.5rem}
nav a{color:rgba(255,255,255,0.6);text-decoration:none;font-size:0.85rem;font-weight:500;transition:color 0.2s}
nav a:hover{color:var(--orange)}
.hamburger{display:none;flex-direction:column;gap:4px;cursor:pointer;background:none;border:none;padding:5px}
.hamburger span{display:block;width:22px;height:2px;background:var(--orange)}

.hero-asym{margin-top:64px;display:grid;grid-template-columns:1.2fr 1fr;min-height:85vh;overflow:hidden}
.hero-text{background:var(--bg-dark);display:flex;flex-direction:column;justify-content:center;padding:4rem 3rem}
.hero-text h1{font-size:3rem;font-weight:800;color:var(--white);margin-bottom:1rem;letter-spacing:-1px;line-height:1.15}
.hero-text h1 span{color:var(--orange)}
.hero-text p{color:rgba(255,255,255,0.55);font-size:1.05rem;max-width:480px;margin-bottom:2rem;font-weight:300}
.hero-visual{background:linear-gradient(135deg,var(--teal),var(--teal-dark));display:flex;align-items:center;justify-content:center;position:relative}
.hero-visual::before{content:'';position:absolute;width:250px;height:250px;border:2px solid rgba(255,140,66,0.2);border-radius:50%}
.hero-visual::after{content:'';position:absolute;width:180px;height:180px;border:1px solid rgba(255,140,66,0.15);border-radius:50%}

.notice-row{display:flex;gap:1rem;flex-wrap:wrap}
.n-badge{background:rgba(255,140,66,0.1);border:1px solid rgba(255,140,66,0.2);border-radius:6px;padding:0.5rem 1rem;font-size:0.8rem;font-weight:600;color:var(--orange)}

.game-modern{padding:5rem 2rem;background:var(--white)}
.game-modern h2{font-size:1.8rem;font-weight:700;text-align:center;margin-bottom:0.5rem}
.game-modern .sub{text-align:center;color:var(--text-light);margin-bottom:2rem;font-weight:300}
.modern-frame{width:100%;max-width:960px;margin:0 auto;aspect-ratio:4/3;border-radius:12px;overflow:hidden;box-shadow:0 8px 40px rgba(0,0,0,0.08);border:1px solid #e5e9ec}
.modern-frame iframe{width:100%;height:100%;border:none}

.feat-row{padding:5rem 2rem;background:var(--bg)}
.feat-row h2{font-size:1.8rem;font-weight:700;text-align:center;margin-bottom:3rem}
.feat-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;max-width:1100px;margin:0 auto}
.feat-col{background:var(--white);border-radius:12px;padding:1.5rem;text-align:center;border:1px solid #e5e9ec}
.feat-col .icon{font-size:1.8rem;margin-bottom:0.6rem}
.feat-col h3{font-size:0.95rem;font-weight:600;margin-bottom:0.4rem}
.feat-col p{font-size:0.85rem;color:var(--text-light);font-weight:300}

.about-mod{padding:4rem 2rem;background:var(--bg-dark);color:var(--white)}
.about-mod .inner{max-width:800px;margin:0 auto}
.about-mod h2{font-size:1.6rem;font-weight:700;margin-bottom:1.5rem;color:var(--orange)}
.about-mod p{color:rgba(255,255,255,0.55);margin-bottom:1rem;font-weight:300}

.page-content{margin-top:84px;padding:2rem;max-width:840px;margin-left:auto;margin-right:auto;min-height:70vh}
.page-content h1{font-size:2.2rem;font-weight:800;margin-bottom:2rem;letter-spacing:-0.5px}
.page-content h2{font-size:1.1rem;font-weight:600;margin:2rem 0 0.8rem;color:var(--teal)}
.page-content p,.page-content li{color:var(--text-mid);margin-bottom:1rem;font-size:0.95rem;font-weight:300}
.page-content ul{padding-left:1.5rem;margin-bottom:1.5rem}
.page-content a{color:var(--teal)}

.play-note{background:var(--bg);border:1px solid #e5e9ec;border-radius:8px;padding:1.5rem;margin:2rem auto;max-width:960px;color:var(--text-mid);font-size:0.9rem}
.play-note strong{color:var(--teal);font-weight:600}

footer{background:var(--bg-dark);padding:3rem 2rem;text-align:center}
footer p{color:rgba(255,255,255,0.4);font-size:0.8rem;margin-bottom:0.4rem}
footer a{color:var(--orange);text-decoration:none;margin:0 0.5rem;font-size:0.85rem}
.footer-links{margin-bottom:1rem}

.age-overlay{position:fixed;inset:0;z-index:9999;background:rgba(15,25,35,0.85);display:flex;align-items:center;justify-content:center;backdrop-filter:blur(6px)}
.age-box{background:var(--white);border-radius:16px;padding:2.5rem;text-align:center;max-width:420px;width:90%;box-shadow:0 20px 60px rgba(0,0,0,0.2)}
.age-box h2{color:var(--teal);font-size:1.4rem;font-weight:700;margin-bottom:0.8rem}
.age-box p{color:var(--text-mid);margin-bottom:2rem;font-weight:300}
.age-box .btn-row{display:flex;gap:1rem;justify-content:center}
.age-box button{padding:0.7rem 2rem;border:none;border-radius:8px;font-family:'Inter',sans-serif;font-size:0.9rem;cursor:pointer;font-weight:600}
.age-box .btn-yes{background:var(--teal);color:#fff}
.age-box .btn-yes:hover{background:var(--teal-dark)}
.age-box .btn-no{background:#eee;color:var(--text-mid)}

@media(max-width:768px){
  nav{position:fixed;top:64px;left:0;width:100%;flex-direction:column;background:var(--bg-dark);padding:1.5rem;gap:0.8rem;transform:translateY(-120%);transition:transform 0.3s}
  nav.open{transform:translateY(0)}
  .hamburger{display:flex}
  .hero-asym{grid-template-columns:1fr}
  .hero-visual{display:none}
  .hero-text h1{font-size:2rem}
  .feat-cols{grid-template-columns:1fr 1fr}
  .modern-frame{aspect-ratio:3/4}
}
@media(max-width:480px){.feat-cols{grid-template-columns:1fr}}