body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Banner */
.banner {
    background: var(--primary-color);
    color: var(--text-color-light);
    padding: calc(var(--spacing-unit) * 2) var(--spacing-unit);
    text-align: center;
    box-shadow: 0 2px 5px var(--shadow-color);
}

.banner h1 {
    margin: 0;
    font-size: 2.5em;
    text-shadow: 1px 1px 3px var(--shadow-color);
}

/* Navigation Bar */
.navbar {
    background-color: var(--primary-dark);
    color: var(--text-color-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-unit);
    box-shadow: 0 2px 5px var(--shadow-color);
}

.nav-left .nav-item {
    color: var(--text-color-light);
    text-decoration: none;
    padding: var(--spacing-unit) calc(var(--spacing-unit) * 2);
    display: inline-block;
    transition: background-color 0.3s ease;
    border-radius: var(--border-radius);
    margin-right: var(--spacing-unit);
}

.nav-left .nav-item:hover,
.nav-left .nav-item.active {
    background-color: var(--primary-darker);
}

.nav-right {
    display: flex;
    gap: var(--spacing-unit); /* Maintain gap between elements */
    align-items: center; /* Align items vertically */
    padding-right: var(--spacing-unit); /* Add some padding to the right for balance */
}

/* Common styling for interactive nav elements */
.nav-button,
.nav-dropdown { /* Apply common styles to both button and dropdown */
    background-color: var(--primary-light);
    color: var(--text-color);
    border: none; /* Reset border, will use custom border if needed */
    padding: var(--spacing-unit);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.3s ease;
    font-size: 1em; /* Ensure consistent font size */
    box-shadow: 0 1px 3px hsla(var(--base-hue), var(--base-saturation), calc(var(--base-lightness) - 30%), 0.2); /* Subtle shadow */
}

.nav-button:hover,
.nav-dropdown:hover {
    background-color: var(--primary-color);
}

.nav-button {
    display: flex; /* Use flexbox for internal alignment of img and span */
    align-items: center;
    gap: calc(var(--spacing-unit) / 2); /* Space between image and text */
}

.nav-button img {
    vertical-align: middle;
}

/* Specific styling for the language dropdown */
.nav-dropdown {
    border: 1px solid var(--border-color); /* Add a subtle border */
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23000000%22%20d%3D%22M287%2C197.319L146.205%2C56.681L5.41%2C197.319c-11.86%2C11.861-30.864%2C11.861-42.725%2C0c-11.861-11.861-11.861-30.864%2C0-42.725L124.54%2C5.41c11.86-11.861%2C30.864-11.861%2C42.725%2C0l120.735%2C120.735c11.86%2C11.861%2C11.86%2C30.864%2C0%2C42.725C317.864%2C209.18%2C298.86%2C209.18%2C287%2C197.319z%22%2F%3E%3C%2Fsvg%3E'); /* Custom arrow */
    background-repeat: no-repeat;
    background-position: right 0.7em center; /* Center the arrow vertically */
    background-size: 0.65em auto; /* Make arrow slightly smaller for better fit */
    padding-right: 2.2em; /* Add space for the custom arrow */
    appearance: none; /* Remove default browser styling for dropdown */
    -webkit-appearance: none;
    -moz-appearance: none;
    min-width: 120px; /* Give it a minimum width to prevent collapse */
}


/* ... (rest of the CSS code, including main-content, games-grid, popup, footer, media queries) ... */

/* ... (rest of the CSS code) ... */

/* Main Content Area */
.main-content {
    flex-grow: 1; /* Allows it to take up available space */
    padding: calc(var(--spacing-unit) * 2);
    max-width: 1200px;
    margin: 0 auto;
}

.content-section {
    background-color: var(--background-dark);
    padding: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 2);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px var(--shadow-color);
}

.content-section.hidden {
    display: none;
}

/* Games Grid */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: calc(var(--spacing-unit) * 2);
}

.game-card {
    background-color: var(--background-darker);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: calc(var(--spacing-unit) * 2);
    text-align: center;
    box-shadow: 0 2px 5px var(--shadow-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
}

.game-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 10px var(--shadow-color);
}

.game-card h3 {
    color: var(--primary-dark);
    margin-top: 0;
}

.game-card p {
    font-size: 0.9em;
    color: var(--text-color);
}

/* Theme Popup */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background-color: var(--background-color);
    padding: calc(var(--spacing-unit) * 3);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 400px;
    text-align: center;
}

.popup-content h2 {
    color: var(--primary-dark);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.popup-content label {
    display: block;
    margin-bottom: var(--spacing-unit);
    font-weight: bold;
    color: var(--primary-dark);
}

.popup-content select,
.popup-content input[type="range"] {
    width: calc(100% - var(--spacing-unit) * 2); /* Adjust for padding if any */
    padding: var(--spacing-unit);
    margin-bottom: calc(var(--spacing-unit) * 2);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--background-dark);
    color: var(--text-color);
    appearance: none; /* Remove default styling for range input */
}

/* Style for range input (slider) */
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    margin-top: -8px; /* Offset to center the thumb */
    box-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
}

input[type="range"]::-moz-range-thumb {
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
}

input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
}

input[type="range"]::-moz-range-track {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
}

.popup-buttons button {
    background-color: var(--primary-color);
    color: var(--text-color-light);
    border: none;
    padding: var(--spacing-unit) calc(var(--spacing-unit) * 2);
    border-radius: var(--border-radius);
    cursor: pointer;
    margin: 0 calc(var(--spacing-unit) / 2);
    transition: background-color 0.3s ease;
}

.popup-buttons button:hover {
    background-color: var(--primary-dark);
}

/* Footer */
.footer {
    background-color: var(--primary-dark);
    color: var(--text-color-light);
    text-align: center;
    padding: var(--spacing-unit);
    margin-top: auto; /* Pushes footer to the bottom */
    box-shadow: 0 -2px 5px var(--shadow-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }
    .nav-left, .nav-right {
        width: 100%;
        justify-content: center;
        margin-bottom: var(--spacing-unit);
    }
    .nav-left .nav-item {
        margin-bottom: var(--spacing-unit);
    }
}