body{
    background: #0f172a;
    color: #e2e8f0;
    font-family: Arial, sans-serif;
    line-height: 1.7;
}

.container{
    max-width: 900px;
    margin: auto;
    padding: 40px 20px;
}

.card{
    background: #111827;
    border: 1px solid #1e293b;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

h1{
    color: #38bdf8;
    margin-bottom: 10px;
    text-align: center;
}

h2{
    color: #60a5fa;
    margin-bottom: 30px;
}

a{
    color: #38bdf8;
    text-decoration: none;
}

a:hover{
    text-decoration: underline;
}

footer{
    margin-top: 40px;
    text-align: center;
    color: #94a3b8;
    font-size: 14px;
}

.btn{
    display: inline-block;
    margin-top: 20px;
    padding: 10px 18px;
    background: #2562eb;
    color: white;
    border-radius: 10px;
    text-decoration: none;
    transition: 0.3s;
}

.btn:hover{
    background: #1d4ed8;
}