html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url('back.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: 'Arial', sans-serif;
    color: #ffffff;
}

.container {
    text-align: center;
    background-color: rgba(44, 44, 46, 0.9);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 0 25px rgba(0, 0, 0, 0.8);
    max-width: 500px;
    width: 90%;
}

h1 {
    font-size: 32px;
    margin-bottom: 15px;
    animation: flicker 2s infinite;
}

@keyframes flicker {
    0%, 100% { color: white; }
    50% { color: red; }
}

a {
    display: inline-block;
    margin: 10px;
    padding: 12px 20px;
    background-color: #f3c523;
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

a:hover {
    background-color: #0056b3;
    color: #f3c523;
    transform: scale(1.05);
}