body {
    margin: 0;
    overflow: hidden;
    font-family: Arial, sans-serif;
    background-color: #111;
}

#conway-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.8;
}

.content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    padding: 1rem;
    height: auto;
    max-height: 50vh;
    overflow: visible;
    background: transparent;
    border-radius: 1rem;
    width: 37.5%;
    max-width: 450px;
    min-width: 300px;
    z-index: 1;
}

h1 {
    color: #fff;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

p {
    color: #ddd;
    font-size: 1.2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    margin: 0.5rem 0;
}

.description {
    max-width: 600px;
    margin: 1rem auto;
    text-align: left;
    font-size: 1.1rem;
    color: #fff;
}

.description ul {
    padding-left: 1.5rem;
    margin: 0.8rem 0;
    background: rgba(0, 0, 0, 0.7);
    padding: 1rem;
    border-radius: 8px;
}

.description li {
    margin: 0.5rem 0;
    line-height: 1.4;
}

.close-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    line-height: 1;
}

.close-btn:hover {
    color: #ff4444;
}