*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Arial, sans-serif;
    background:#f5f7fa;
    color:#222;
}

header{
    background:#111827;
    color:white;
    text-align:center;
    padding:40px 20px;
}

.hero{
    text-align:center;
    padding:40px 20px;
}

.hero h2{
    margin-bottom:10px;
}

.game-section{
    display:flex;
    justify-content:center;
    padding:20px;
}

.game-card{
    background:white;
    padding:20px;
    border-radius:12px;
    box-shadow:0 4px 15px rgba(0,0,0,0.1);
}

.game-header{
    text-align:center;
    margin-bottom:20px;
}

#gameArea{
    width:700px;
    max-width:95vw;
    height:300px;
    background:#eaf4ff;
    border:2px solid #333;
    position:relative;
    overflow:hidden;
}

#player{
    width:40px;
    height:40px;
    background:#2563eb;
    position:absolute;
    bottom:0;
    left:50px;
}

#obstacle{
    width:30px;
    height:50px;
    background:#ef4444;
    position:absolute;
    bottom:0;
    right:-40px;
}

#score{
    position:absolute;
    top:10px;
    left:10px;
    font-weight:bold;
}

#startBtn{
    position:absolute;
    top:50%;
    left:50%;
    transform:translate(-50%,-50%);
    padding:12px 25px;
    border:none;
    background:#2563eb;
    color:white;
    cursor:pointer;
    border-radius:6px;
}

.about{
    max-width:900px;
    margin:auto;
    padding:50px 20px;
    text-align:center;
}

footer{
    background:#111827;
    color:white;
    margin-top:40px;
}

.footer-content{
    max-width:1000px;
    margin:auto;
    padding:30px 20px;
    text-align:center;
}

.footer-content p{
    margin-top:8px;
}