/* Crypto Faucet Referral - External CSS */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0a2342;
    color: #e0f1ff;
}
header {
    text-align: center;
    padding: 40px 10px;
    background: linear-gradient(135deg, #0a2342, #1d4e89);
}
header h1 {
    font-size: 36px;
    margin: 0;
}
header p {
    font-size: 18px;
    opacity: 0.9;
}
.container {
    max-width: 1100px;
    margin: auto;
    padding: 20px;
}
.row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}
.card {
    background: #12345b;
    border-radius: 10px;
    padding: 25px;
    width: 260px;
    text-align: center;
    box-shadow: 0 0 15px rgba(0,0,0,0.3);
    transition: 0.3s;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(0,0,0,0.5);
}
.card h3 {
    margin-top: 0;
    font-size: 24px;
    color: #74c0fc;
}
.card p {
    font-size: 15px;
    margin-bottom: 20px;
}
.btn {
    background: #1d82f0;
    padding: 10px 20px;
    border: none;
    width: 100%;
    color: white;
    font-size: 15px;
    cursor: pointer;
    border-radius: 5px;
    text-transform: uppercase;
    transition: 0.3s;
}
.btn:hover {
    background: #0b63c3;
}
footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    background: #0a2342;
    opacity: 0.8;
}