/* Content */
.subject-grid {
    display: grid;
    grid-template-columns: 1fr; /* Single column by default */
    gap: 20px; /* Space between grid items */
    margin: 20px 0;
    padding: 0 10px;
}

.subject-card {
    background: #ffffff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
    max-width: 100%; /* Ensure it doesn't exceed screen width */
    box-sizing: border-box; /* Include padding and border in width calculation */
    margin: 0 auto; /* Center the card */
    word-wrap: break-word; /* Ensure text doesn't overflow */
}

/* Add spacing between cards */
.subject-card:not(:last-child) {
    margin-bottom: 30px; /* Adjust this value to increase/decrease spacing */
}

.subject-card a {
    text-decoration: none;
    color: inherit;
    display: block; /* Ensure link takes up entire card */
}

.subject-card h3 {
    margin: 10px 0;
    font-size: 1.4rem;
    color: #1b2838;
}

/* Media Queries for Responsive Design */
@media (min-width: 600px) {
    .subject-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 columns for larger screens */
    }
}

@media (min-width: 768px) {
    .subject-grid {
        grid-template-columns: repeat(3, 1fr); /* 3 columns for tablet screens */
    }
}

@media (min-width: 1024px) {
    .subject-grid {
        grid-template-columns: repeat(4, 1fr); /* 4 columns for desktops */
    }
}

@media (max-width: 375px) {
    nav ul li a {
        padding: 6px 10px; /* Adjust navigation padding for smaller screens */
    }
}


/* General Styles */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
    max-width: 100%;
    overflow-x: hidden;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px; /* Small padding on the sides */
    box-sizing: border-box;
}

/* Header */
header {
    background: #35424a;
    color: #ffffff;
    padding: 15px 0;
    text-align: center;
}

/* Navigation */
nav ul {
    padding: 0;
    list-style: none;
    text-align: center;
    background: #35424a;
}

nav ul li {
    display: inline-block;
    margin: 0 15px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-weight: bold;
    padding: 8px 15px;
    border-radius: 5px;
    transition: background-color 0.3s, transform 0.3s;
}

/* Content */
.subject-grid {
    display: grid;
    grid-template-columns: 1fr; /* Single column by default */
    gap: 20px;
    margin: 20px 0;
    padding: 0 10px;
}

.subject-card {
    background: #ffffff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
    max-width: 90%; /* Ensure it doesn't exceed screen width */
    box-sizing: border-box; /* Include padding and border in width calculation */
    margin: 0 auto; /* Center the card */
    word-wrap: break-word; /* Ensure text doesn't overflow */
}

.subject-card a {
    text-decoration: none;
    color: inherit;
    display: block; /* Ensure link takes up entire card */
}

.subject-card h3 {
    margin: 10px 0;
    font-size: 1.4rem;
    color: #1b2838;
}

/* Footer */
footer {
    text-align: center;
    padding: 15px 0;
    background: #35424a;
    color: #ffffff;
}

/* Media Queries for Responsive Design */
@media (min-width: 600px) {
    .subject-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 columns for larger screens */
    }
}

@media (min-width: 768px) {
    .subject-grid {
        grid-template-columns: repeat(3, 1fr); /* 3 columns for tablet screens */
    }
}

@media (min-width: 1024px) {
    .subject-grid {
        grid-template-columns: repeat(4, 1fr); /* 4 columns for desktops */
    }
}

@media (max-width: 375px) {
    nav ul li a {
        padding: 6px 10px; /* Adjust navigation padding for smaller screens */
    }
}