body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #0073ef;
}

header {
    background-color: #0056b3;
    color: white;
    padding: 1.5rem;
    text-align: center;
    font-size: 1.8rem;
    font-weight: bold;
}

nav {
    background-color: #222;
    display: flex;
    flex-wrap: wrap;
}

nav a {
    flex: 1;
    color: white;
    text-align: center;
    padding: 1rem;
    text-decoration: none;
    transition: 0.3s ease-in-out;
}

nav a:hover {
    background-color: #00aaff;
    color: white;
    border-radius: 5px;
}

/* ✅ Responsive Grid Layout */
.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); /* Auto-responsive grid */
    gap: 20px;
    padding: 2rem;
    width: 80%;
    max-width: 1200px;
    margin: auto;
}

.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease-in-out;
    width: 100%;
}

.card:hover {
    transform: scale(1.05);
}

.card h3 {
    margin: 0 0 1rem;
    color: #333;
}

.cardbutton {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
}

.cardbutton:hover {
    background-color: #45a049;
}

footer {
    background-color: #004080;
    color: white;
    text-align: center;
    padding: 0.8rem;
    position: fixed;
    bottom: 0;
    width: 100%;
    font-size: 0.9rem;
}

/* ✅ Responsive Design Fixes */

/* Mobile View (Small screens) */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
    }

    nav a {
        flex: none;
        padding: 1rem;
        border-bottom: 1px solid #444;
    }

    .container {
        grid-template-columns: 1fr; /* Single column layout */
        width: 100%;
    }

    .card {
        padding: 1.5rem;
    }

    footer {
        position: relative;
    }
}

/* Tablet View (Medium screens) */
@media (max-width: 1024px) {
    .container {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        width: 90%;
    }
}

/* Large Screens (Laptops & Desktops) */
@media (min-width: 1200px) {
    .container {
        width: 60%;
    }
}