@media (max-width: 600px) {
    body {
        margin: 20px auto;
        padding: 0 10px;
        font-size: 1.1rem;
    }

    h1, h2 {
        font-size: 1.5rem;
        text-align: center;
    }

    .section h3 {
        font-size: 1.2rem;
        text-align: center;
    }

    form {
        max-width: 100%;
        padding: 0 5px;
    }

    .container {
        text-align: center;
        padding: 0 10px;
    }

    .section {
        padding: 15px;
        margin: 15px 0;
    }

    button {
        font-size: 1.05rem;
        padding: 10px 16px;
    }

    .log-container,
    .db-box {
        font-size: 1rem;
    }

    form input,
    form select,
    form textarea {
        font-size: 1.05rem;
    }
}

/* Additional classes */

.section {
    margin-bottom: 30px;
}

.hero {
    background: url('/images/web/background.jpg') no-repeat center center;
    background-size: cover;
    color: white;
    padding: 10px;
    margin: 20px auto;
    max-width: 600px;
    border-radius: 8px;
    text-shadow: 1px 1px 2px #000;
    text-align: center;
}

.btn-home {
    padding: 12px 24px;
    font-size: 1rem;
    background-color: black;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.admin-navbar .dropdown {
    position: relative;
    display: inline-block;
}

.admin-navbar .dropdown-content {
    display: none;
    position: absolute;
    background-color: #444;
    min-width: 160px;
    z-index: 1;
    right: 0;
    left: auto;
}

.admin-navbar .dropdown-content a {
    color: #fff;
    padding: 10px 12px;
    display: block;
    text-decoration: none;
}

.admin-navbar .dropdown-content a:hover {
    background-color: #555;
}

.admin-navbar a {
    color: #ccc;
    margin-left: 15px;
}

.admin-navbar .dropdown.active .dropdown-content {
    display: block;
}

.admin-navbar span.toggle {
    display: inline-block;
    cursor: pointer;
}

@media (max-width: 768px) {
    .admin-navbar .dropdown-content {
        position: static;
        background-color: #222;
        border-top: 1px solid #555;
    }

    .admin-navbar .container {
        flex-direction: column;
        align-items: flex-start;
    }

    .admin-navbar a,
    .admin-navbar span {
        font-size: 1rem;
        margin: 5px 8px;
    }
}

.centered-block {
    text-align: center;
    margin: 20px auto;
}

.marbleLogo-bg {
    background: url('/images/web/marbleLogo.jpg') no-repeat center center;
    background-size: cover;
}

/* Tablet Optimization */
@media (max-width: 1024px) {
    .container {
        padding: 40px;
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 24px;
    }

    h3 {
        font-size: 20px;
    }

    button {
        font-size: 1rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #121212;
        color: #e0e0e0;
    }

    .container, .section {
        background-color: #1e1e1e;
    }

    input, textarea, select, button {
        background-color: #2a2a2a;
        color: #f1f1f1;
        border-color: #444;
    }

    .admin-navbar {
        background-color: #222;
    }

    .admin-navbar a {
        color: #ddd;
    }

    .admin-navbar .dropdown-content {
        background-color: #333;
    }

    .admin-navbar .dropdown-content a:hover {
        background-color: #444;
    }

    .btn-home {
        background-color: #333;
        color: #fff;
    }

    .hero {
        background-blend-mode: overlay;
    }
}

/* Accessibility Focus States */
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px dashed #999;
    outline-offset: 3px;
}