body {
    margin: 0;
    background-image: url('assets/upper_background.png'), url('assets/background.jpg');
    background-size: contain, cover;
    background-position: top center, center;
    background-repeat: no-repeat, no-repeat;
    height: 100vh;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    flex-direction: column;
    font-family: Arial, sans-serif;
}

.button-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 1200px;
    width: 90%;
    margin-top: auto;
    padding: 40px 2px 120px;
}

.button {
    background-color: rgba(31, 41, 55, 0.9);
    color: white;
    text-decoration: none;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    font-size: 1.2rem;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(3px);
}

.button:hover {
    background-color: rgba(55, 65, 81, 0.95);
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        justify-content: center;
        padding: 20px 0;
        background-size: 100% auto, cover;
    }

    .button-container {
        grid-template-columns: 1fr;
        width: 95%;
        margin: 0 auto;
        padding: 20px 2px;
    }
    
    .button {
        font-size: 1rem;
        padding: 20px;
        min-height: 80px;
    }
}

/* Add specific styles for very small screens */
@media (max-width: 380px) {
    .button {
        font-size: 0.9rem;
        padding: 15px;
        min-height: 70px;
    }
}