body {
    margin: 0;
    background-color: #000;

    color: white;
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

h1 {
    margin: 5px;
    text-align: center;
    padding: 10px;
}

#solarSystem {
    display: block;
    margin: auto;
    height: 100vh;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

#infoPanel {
    position: fixed;
    bottom: 0;        
    left: 0;           
    width: 100%;      
    background: #111; 
    color: white;      
    padding: 15px;     
    box-shadow: 0 -2px 10px rgba(0,0,0,0.5); 
    z-index: 1000;
}

/* ===== Landing page ===== */

body.landing {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #000;
    color: white;
    font-family: Arial, sans-serif;
    text-align: center;
    overflow: hidden;
    position: relative;
}


.landing-container {
    position: relative;
    z-index: 1;
    max-width: 700px;
    padding: 30px;
    background: rgba(20, 20, 20, 0.8);
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.7);
}

.landing-container h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #ffffff;
}

.landing-container p {
    color: #ddd;
    margin-bottom: 30px;
    line-height: 1.6em;
}

.landing-container button {
    padding: 12px 25px;
    font-size: 1.2em;
    color: #fff;
    background: #27829e;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.landing-container button:hover {
    background: #10285a;
    z-index: 1;
}

.stars {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

@keyframes twinkle {
    from { opacity: 0.2; }
    to { opacity: 1; }
}

.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: white;
    border-radius: 50%;
    animation: twinkle 2s infinite alternate;
}