body, html {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    overflow: hidden;
    background-color: #000;
    color: #fff;
}

.skip-link { position: absolute; top: -100%; z-index: 9999; background: #3b82f6; color: white; padding: 10px; border-radius: 4px; transition: top 0.1s; }
.skip-link:focus { top: 0; left: 0; outline: 3px solid #93c5fd; }

#app {
    display: flex;
    height: 100vh;
}

#visualizer {
    flex: 1;
    position: relative;
}

#controls {
    width: 300px;
    padding: 48px 20px 20px;
    background: #1c1c1c;
    overflow-y: auto;
}

h1 {
    color: #FFD700;
    font-size: 1.3em;
    margin-bottom: 2px;
}

#subtitle {
    color: #aaa;
    font-size: 0.8em;
    margin-top: 0;
    margin-bottom: 15px;
}

h2 {
    color: #FFD700;
    font-size: 1em;
    margin-top: 15px;
}

select, input {
    width: 100%;
    margin-bottom: 10px;
    padding: 5px;
    background: #333;
    color: #fff;
    border: 1px solid #444;
}

input[type="range"] {
    padding: 0;
    height: 4px;
    cursor: pointer;
}

label span {
    color: #88ccff;
    font-weight: bold;
}

#info {
    margin-top: 20px;
}

#orbitInfo {
    background: #333;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #444;
    font-size: 0.85em;
    line-height: 1.5;
}