body {
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at bottom, #1b2735 0%, #090a0f 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
    color: white;
}

.stars {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
    background: transparent;
}

.stars::after {
    content: "";
    position: absolute;
    top: -10px; left: -10px; right: -10px; bottom: -10px;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #eee, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 40px 70px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 50px 160px, #ddd, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 90px 40px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 130px 80px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 160px 120px, #ddd, rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: twinkle 4s infinite alternate;
    opacity: 0.8;
}

@keyframes twinkle {
    0% { opacity: 0.5; }
    100% { opacity: 1; transform: scale(1.02); }
}

.card {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.1);
    text-align: center;
    max-width: 400px;
    width: 90%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.5s ease;
    cursor: pointer;
}

.card:hover {
    box-shadow: 0 0 40px rgba(255, 192, 203, 0.4);
    transform: translateY(-5px);
}

.hidden-content {
    display: none;
    opacity: 0;
    transition: opacity 1s ease;
}

h1 {
    font-size: 24px;
    font-weight: 300;
    margin-bottom: 20px;
}

p {
    font-size: 16px;
    line-height: 1.6;
    color: #e0e0e0;
}

button {
    margin-top: 25px;
    padding: 12px 24px;
    background: linear-gradient(45deg, #ff758c 0%, #ff7eb3 100%);
    border: none;
    border-radius: 25px;
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 117, 140, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(255, 117, 140, 0.6);
}