body {
    background: #101015;
    color: #fff;
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

header {
    text-align: center;
    margin: 1.5em 0 1em 0;
}

h1 {
    margin: 0;
    color: #13fff0;
    text-shadow: 0 0 18px #0fffcf, 0 0 40px #0fffcf40;
    font-size: 2.2em;
    letter-spacing: 0.06em;
}

.controls {
    margin: 1em auto 0 auto;
    color: #9bffe4;
    background: #02343f60;
    border-radius: 18px;
    padding: 0.6em 1.8em;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 2em;
    box-shadow: 0 0 12px #33fff8a0;
}

label {
    font-size: 1.08em;
    cursor: pointer;
    font-weight: 500;
}

#status {
    font-size: 1.05em;
    color: #d5fff5;
}

main {
    width: 100vw;
    max-width: 750px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#canvas-container {
    margin-top: 1em;
    display: flex;
    justify-content: center;
    width: 100%;
}

canvas {
    border-radius: 20px;
    box-shadow: 0 0 80px #0efcd719, 0 0 22px #24ffa920;
    background: #000;
    margin: 0 auto;
    display: block;
    max-width: 100%;
}