html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}

body {
    background-image: url('../start_ecosite.png');
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    padding-bottom: 30px;
}

.main-button {
    background-color: var(--primary);
    color: white;
    padding: 15px 30px;
    font-size: 24px;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 10px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s;
}

.main-button:hover {
    background-color: var(--secondary-2);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.main-button a {
    color: white;
    text-decoration: none;
}