body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #001f3f; /* donkerblauwe achtergrond */
    margin: 0;
    padding: 0;
    text-align: center;
    color: #fff;
    overflow-x: hidden;
}

h1 {
    margin-top: 50px;
    font-size: 3rem;
    color: #ecf0f1;
}

h2 {
    font-size: 2rem;
    color: #dfe6e9;
}

a {
    display: inline-block;
    margin: 20px auto;
    padding: 12px 24px;
    background-color: #e74c3c; 
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.corner-button {
    position: fixed;
    bottom: 20px; 
    left: 20px;
    padding: 5px 10px; 
    font-size: 0.8rem; 
    background-color: #e74c3c;
    color: white;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    transition: background-color 0.3s ease;
    z-index: 1000; 
}

.corner-button:hover {
    background-color: #c0392b;
}


.corner-button:hover {
    background-color: #c0392b;
}


a:hover {
    background-color: #c0392b;
}

.device-message {
    font-size: 1.5rem;
    margin-top: 30px;
    color: #aaa;
}

.animate-sound {
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background-color: #e74c3c;
    border-radius: 50%;
    animation: soundMoveUp 2s forwards;
}

@keyframes soundMoveUp {
    0% {
        bottom: 0;
        opacity: 1;
        transform: translateX(-50%) scale(1);
    }
    100% {
        bottom: 100px;
        opacity: 0;
        transform: translateX(-50%) scale(2);
    }
}