styles1.css

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 15px;
    text-align: center;
}

main {
    padding: 20px;
}

select {
    margin: 20px 0;
    padding: 10px;
    width: 100%;
    max-width: 300px;
}

#uploadSection, #notesSection {
    margin: 20px 0;
    padding: 20px;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 5px;
}

textarea, input[type="text"], input[type="file"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #45a049;
}

/* Theme for CSE */
body.cse {
    background-color: #e0f7fa;
}

header.cse {
    background-color: #00796b;
}

/* Theme for ECE */
body.ece {
    background-color: #fff8e1;
}

header.ece {
    background-color: #f57c00;
}

/* Theme for Mechanical */
body.mech {
    background-color: #e0e0e0;
}

header.mech {
    background-color: #424242;
}

.note {
    border: 1px solid #ccc;
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    background-color: #f9f9f9;
}