static/space-theme.css

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #0b0c2a;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0; left: 0;
    z-index: 0;
}
.star {
    position: absolute;
    background: white;
    border-radius: 50%;
    opacity: 0.8;
    animation: twinkle 2s infinite alternate;
}
@keyframes twinkle {
    from { opacity: 0.5; }
    to { opacity: 1; }
}
.container {
    position: relative;
    z-index: 1;
    max-width: 400px;
    margin: 100px auto;
    background: rgba(20, 24, 60, 0.85);
    border-radius: 16px;
    box-shadow: 0 0 30px #1a1a40;
    padding: 40px 30px;
    text-align: center;
}
h2 {
    margin-bottom: 20px;
    font-size: 2em;
    letter-spacing: 2px;
}
p {
    margin-bottom: 30px;
    font-size: 1.1em;
}
a {
    display: inline-block;
    padding: 10px 30px;
    background: #4e54c8;
    color: #fff;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    transition: background 0.3s;
}
a:hover {
    background: #8f94fb;
}