/* --- General Styling (Blue & Gray Theme) --- */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #eaf2f8; /* Very light blue-gray background */
    color: #5D6D7E; /* Medium cool gray for primary text */
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 20px auto;
    padding: 0 20px;
}

/* --- Language Switcher --- */
.lang-switcher {
    text-align: right;
    padding: 10px 0;
    margin-bottom: 20px;
}

.lang-switcher a {
    text-decoration: none;
    color: #2c3e50; /* Dark slate blue for better contrast */
    font-weight: bold;
    padding: 5px 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.lang-switcher a:hover {
    background-color: #d6eaf8; /* Slightly darker shade of the page background */
}

.lang-switcher a.active {
    color: #3498DB; /* Primary blue for the active language */
    text-decoration: underline;
}

/* --- Header & Logo --- */
.header {
    text-align: center;
    padding: 40px 0;
}

.logo {
    max-width: 250px;
    height: auto;
    margin-bottom: 25px;
}

h1 {
    font-size: 2.8em;
    color: #2c3e50; /* Dark slate blue for the main heading */
    margin-bottom: 10px;
}

.welcome-text {
    font-size: 1.2em;
    color: #5D6D7E; /* Cool gray for the subheading */
    max-width: 700px;
    margin: 0 auto 50px auto;
}

/* --- Product Categories --- */
h2 {
    text-align: center;
    font-size: 2.2em;
    color: #2c3e50; /* Dark slate blue */
    margin-bottom: 40px;
    border-bottom: 3px solid #3498DB; /* Primary blue as accent */
    display: inline-block;
    padding-bottom: 10px;
}

.center-heading {
    text-align: center;
}

.product-section {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.product-card {
    background-color: #ffffff;
    border-radius: 10px;
    /* Using a subtle, cool-toned shadow */
    box-shadow: 0 4px 20px rgba(44, 62, 80, 0.1); 
    flex-basis: 400px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(44, 62, 80, 0.15);
}

.product-card i {
    font-size: 3.5em;
    color: #3498DB; /* Primary blue for icons */
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 1.8em;
    margin-bottom: 15px;
    color: #2c3e50; /* Dark slate blue for card titles */
}

.product-card p {
    font-size: 1em;
    color: #5D6D7E; /* Cool gray for card descriptions */
}

/* --- Footer --- */
footer {
    text-align: center;
    margin-top: 60px;
    padding: 20px;
    background-color: #2c3e50; /* Dark slate blue for the footer background */
    color: #ecf0f1; /* Light gray text for high contrast */
}

/* --- Responsive Design for Mobile --- */
@media (max-width: 768px) {
    h1 {
        font-size: 2.2em;
    }

    .product-section {
        flex-direction: column;
        align-items: center;
    }
    
    .product-card {
        flex-basis: 100%;
        max-width: 400px;
    }
}