body {
    margin: 0;
    padding: 0;
    background-color: #28334A;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    color: white;
}

h1 {
    margin-top: 50px;
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
}

.drum-container {
    margin-bottom: 3rem;
    display: flex;
    justify-content: center;
}

.drum-img {
    max-width: 400px;
    height: auto;
    filter: brightness(0);
    opacity: 0.7;
}

.keys {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
}

.key {
    background-color: #3498db;
    border-radius: 8px;
    width: 70px;
    height: 70px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.07s ease;
    user-select: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.key kbd {
    display: block;
    font-size: 2rem;
}

.key .sound {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #e0e0e0;
    display: none;
}

.playing {
    transform: scale(1.1);
    box-shadow: 0 0 15px #ffc600;
    background-color: #5dade2;
    border-color: #ffc600;
}

.key .sound {
    display: none;
}