html, body {
    overflow-y: auto; 
}

body {
    background-image: url('/static/bg.jpg'); 
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    min-height: 100vh;
    margin: 0;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backdrop-filter: blur(8px);
    background-color: rgba(255, 255, 255, 0.2);
    z-index: -1;
}

.container {
    margin-top: 40px;
    z-index: 1;
    position: relative;
}

.card {
    background: rgba(255, 255, 255, 0.9);
    border: none;
}

.rules-box {
    margin: 0px 0px 20px 0px;
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.95);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    line-height: 1.6;
}