.page{
:root{
  --bg:#000;
  --panel:#0b0b0b;
  --accent:#ffcc00;
  --muted:#9aa4b2;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:#eaf0ff;min-height:100vh}
.container{display:flex;gap:0}
/* SIDEBAR */
.sidebar{width:260px;padding:18px;background:rgba(0,0,0,0.6);border-right:1px solid rgba(255,255,255,0.02)}
.logo{font-size:20px;color:var(--accent);margin-bottom:8px}
.nav a{display:block;color:var(--muted);text-decoration:none;padding:8px;border-radius:8px;margin:6px 0}
.nav a:hover{background:rgba(255,255,255,0.03);color:#fff}

/* MAIN */
.main{flex:1;padding:18px}
.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.header h1{margin:0;color:var(--accent)}
.canvas-wrap{background:linear-gradient(180deg,#000,#0b0b0b);padding:12px;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,0.6)}
.hud-row{display:flex;gap:12px;color:var(--muted);margin-bottom:8px}

/* LOGIN / BOX */
.login-box, .center-box{max-width:480px;margin:40px auto;background:#0e0e0f;padding:18px;border-radius:10px;border:1px solid rgba(255,255,255,0.03)}
.login-box input{width:100%;padding:10px;margin:8px 0;border-radius:8px;border:none;background:#111;color:#fff}
.btn{padding:10px 12px;border-radius:8px;border:none;background:var(--accent);color:#000;cursor:pointer;font-weight:700}

/* SHOP */
.shop-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:12px}
.shop-card{background:#111;padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.03)}
.shop-card .name{font-weight:700}
.buy-btn{padding:8px;border-radius:8px;border:none;background:var(--accent);color:#000;cursor:pointer}

/* PAGES TEXT */
.page{max-width:900px;margin:30px auto;padding:18px;background:#0b0b0b;border-radius:10px;border:1px solid rgba(255,255,255,0.03)}
.page h1{color:var(--accent)}

/* overlays & message */
.overlay{position:fixed;left:280px;top:80px;right:20px;bottom:40px;display:flex;align-items:flex-start;justify-content:center;z-index:50}
.message{position:fixed;left:50%;top:45%;transform:translate(-50%,-50%);background:#000;padding:12px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);display:none}

/* responsive */
@media (max-width:900px){
  .sidebar{display:none}
  .overlay{left:10px;right:10px;top:70px;bottom:10px}
}