*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Poppins',sans-serif;
}

body{
    min-height:100vh;
    overflow-x:hidden;
    background:#0a0a0a;
    color:white;
}

/* Animated Background */

.background{
    position:fixed;
    inset:0;
    background:
    radial-gradient(circle at 20% 20%, rgba(0,255,255,.15), transparent 30%),
    radial-gradient(circle at 80% 30%, rgba(0,100,255,.15), transparent 30%),
    radial-gradient(circle at 50% 80%, rgba(140,0,255,.15), transparent 30%),
    #050505;
    animation:bgMove 12s infinite alternate ease-in-out;
    z-index:-1;
}

@keyframes bgMove{
    from{
        transform:scale(1);
    }
    to{
        transform:scale(1.1);
    }
}

/* Header */

header{
    width:100%;
    padding:25px 8%;
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.logo{
    font-size:2rem;
    font-weight:800;
    color:#00e5ff;
    text-shadow:0 0 20px #00e5ff;
}

nav{
    display:flex;
    gap:30px;
}

nav a{
    text-decoration:none;
    color:white;
    transition:.3s;
}

nav a:hover{
    color:#00e5ff;
}

.loginBtn{
    padding:12px 28px;
    border:none;
    border-radius:12px;
    background:#00e5ff;
    color:black;
    font-weight:700;
    cursor:pointer;
    transition:.3s;
}

.loginBtn:hover{
    transform:translateY(-3px);
    box-shadow:0 0 20px #00e5ff;
}

/* Hero */

.hero{
    width:100%;
    min-height:85vh;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 8%;
}

.left{
    max-width:600px;
}

.left h1{
    font-size:4rem;
    line-height:1.1;
    margin-bottom:20px;
}

.left p{
    font-size:1.1rem;
    color:#cfcfcf;
    margin-bottom:30px;
}

.buttons{
    display:flex;
    gap:15px;
    margin-bottom:40px;
}

.playNow{
    padding:15px 35px;
    border:none;
    border-radius:15px;
    background:#00e5ff;
    color:black;
    font-weight:700;
    cursor:pointer;
    transition:.3s;
}

.playNow:hover{
    transform:translateY(-4px);
    box-shadow:0 0 25px #00e5ff;
}

.learn{
    padding:15px 35px;
    border:2px solid #00e5ff;
    background:transparent;
    color:white;
    border-radius:15px;
    cursor:pointer;
    transition:.3s;
}

.learn:hover{
    background:#00e5ff;
    color:black;
}

/* Stats */

.stats{
    display:flex;
    gap:40px;
}

.stats h2{
    color:#00e5ff;
    font-size:2rem;
}

.stats p{
    color:#bdbdbd;
}

/* Glass Card */

.glass{
    width:450px;
    height:450px;

    backdrop-filter:blur(20px);

    background:rgba(255,255,255,.05);

    border:1px solid rgba(255,255,255,.1);

    border-radius:30px;

    display:flex;
    justify-content:center;
    align-items:center;

    box-shadow:
    0 0 40px rgba(0,229,255,.15),
    0 0 80px rgba(0,229,255,.05);

    animation:float 4s infinite ease-in-out;
}

@keyframes float{
    0%{
        transform:translateY(0);
    }

    50%{
        transform:translateY(-15px);
    }

    100%{
        transform:translateY(0);
    }
}

/* Chess Board */

.board{
    width:380px;
    height:380px;

    display:grid;

    grid-template-columns:repeat(8,1fr);

    border-radius:12px;

    overflow:hidden;

    box-shadow:
    0 0 30px rgba(255,255,255,.1);
}

.light{
    background:#f0d9b5;
}

.dark{
    background:#b58863;
}

/* Responsive */

@media(max-width:1000px){

.hero{
    flex-direction:column;
    text-align:center;
    gap:50px;
    padding-top:40px;
}

.left h1{
    font-size:3rem;
}

.stats{
    justify-content:center;
}

.glass{
    width:90%;
    max-width:450px;
    height:450px;
}

}

@media(max-width:600px){

nav{
    display:none;
}

.left h1{
    font-size:2.4rem;
}

.stats{
    flex-direction:column;
    gap:20px;
}

.board{
    width:300px;
    height:300px;
}

}