body {
    background-color: #222;
    color: #00ffc8;
    font-family: 'Courier New', Courier, monospace;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}

.controls-top {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    background: #333;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #555;
}

.control-group {
    display: flex;
    flex-direction: column;
    align-items: center;
}

label {
    font-size: 0.8rem;
    color: #aaa;
    margin-bottom: 5px;
}

select, input {
    background: #222;
    color: #00ffc8;
    border: 1px solid #00ffc8;
    padding: 5px;
    font-family: inherit;
}

button {
    padding: 15px 30px;
    font-size: 1.2rem;
    background: transparent;
    border: 2px solid #00ffc8;
    color: #00ffc8;
    cursor: pointer;
    transition: 0.3s;
    margin-top: 30px;
    margin-bottom: 20px;
}

button:hover { background: #00ffc8; color: #222; }

.display-area {
    display: flex;
    gap: 40px;
    text-align: center;
    opacity: 0.3;
    transition: opacity 1s;
}

.chord-box {
    border: 1px solid #555;
    padding: 20px;
    width: 200px;
    background: rgba(0,0,0,0.2);
}

h1 { font-size: 3rem; margin: 0; }
h3 { color: #888; margin-top: 5px; font-size: 0.9rem; }
#log { font-size: 0.8rem; color: #666; height: 100px; overflow: hidden; margin-top: 20px; width: 400px; text-align: center;}