body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
}

#background-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

header {
    background-color: rgba(217, 83, 79, 0.8);
    color: white;
    padding: 20px 10px;
    text-align: center;
    font-size: 1.5rem;
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.instruction {
    margin-bottom: 20px;
    font-size: 1.2rem;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 10px;
    border-radius: 5px;
}

.button-container {
    margin-top: 20px;
}

button {
    background-image: linear-gradient(to bottom, #ff4d4d, #ffa64d);
color: white;
border: 2px solid #e69900;
border-radius: 5px;
padding: 20px 30px;
box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.3);
}

button:hover {
    background-color: #c9302c;
}

.result-container {
    margin-top: 30px;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.9);
    border: 1px solid #ddd;
    border-radius: 5px;
    text-align: center;
    font-size: 1.2rem;
    max-width: 400px;
}

footer {
    margin-top: 20px;
    text-align: center;
    font-size: 0.9rem;
    color: #555;
}

.back-button {
    margin-top: 20px;
    text-align: center;
}

.back-button a {
    text-decoration: none;
    color: white;
    background-color: #5bc0de;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.back-button a:hover {
    background-color: #31b0d5;
}