:root{
  --bg:#0f1724;
  --card:#0b1220;
  --accent:#ff6b6b;
  --muted:#94a3b8;
}

*{box-sizing:border-box;
  margin:0;
  padding:0;
  font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
}
html,body{
  height: 100%;
}

body{
  display: flex;
  flex-direction: column; 
  justify-content: center; 
  align-items: center; 
  margin: 0;
  height:100vh;
  background:linear-gradient(180deg,#071028 0%, #071a2b 100%);
  color:white;
  padding: 0;

}

.app{
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width:100%;
  max-width:900px;
  background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0.04));
  border-radius:12px;
  padding: 20px;
  box-shadow:0 10px 30px rgba(2,6,23,0.6);
  border:1px solid rgba(255,255,255,0.02); 
}

header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:10px;
}
header h1{
  font-size:20px;
  letter-spacing:1px;
}
.info{
  display:flex;
  gap:12px;
  align-items:center;
  font-size:14px;color:var(--muted);
}

.game-wrapper {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

main{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  flex-grow: 1;
  padding-bottom: 0 !important;
  margin-bottom: 0 !important;
}

#gameCanvas{
  display: block;
  margin: 0 auto;
  width: 100%;
  max-width: 900px;
  min-height: 420px;
  height: auto;
  aspect-ratio: 1.5 / 1;
  background:linear-gradient(180deg,#071a2b 0%, #08304a 100%);
  border-radius:8px;
  box-shadow:inset 0 0 40px rgba(0,0,0,0.4);
  border:1px solid rgba(255,255,255,0.03);
}

.controls{
  display:flex;
  gap:10px;
  align-items:center;
  justify-content:space-around;
  margin-top:8px;
  padding: 0%;
}
.controls button{
  margin: 0 5px;
  padding:10px 14px;
  border-radius:8px;
  border:none;background:rgba(255,255,255,0.06);
  color:white;cursor:pointer;
  font-size:16px;
  min-width:70px;
}
.controls .mobile-btn{
  min-width:54px;
  padding:10px 8px;
  font-size:18px;
}
.controls button:active{
  transform:translateY(1px)
}

.overlay{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(0deg, rgba(2,6,23,0.6), rgba(2,6,23,0.6));border-radius:8px;
}
.overlay-box{
  background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  padding:26px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.03);
  width:90%;
  max-width:420px;
  text-align:center;
}
.overlay-box h2{
  margin-bottom:8px
}
.overlay-box p{
  color:var(--muted);
  margin-bottom:16px
}
.overlay-buttons{
  display:flex;
  gap:12px;
  justify-content:center
}
.overlay-buttons button{
  padding:10px 16px;
  border-radius:8px;
  border:none;
  background:var(--accent);
  cursor:pointer;
  color:white;
  font-weight:600
}
footer{
  margin-top:12px;
  text-align:center;
  color:var(--muted);
  font-size:13px
}

@media (max-width:600px){
    canvas#gameCanvas{
      height: 100%;
    }
  .info{
    font-size:12px
  }
  .controls{
    gap:6px
  }
  .overlay-box{
    padding:18px
  }
}