/* Reset some default styles */
body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 100vh;
    padding-top: 50px;
    color: #333;
}

h1 {
    font-size: 2em;
    margin-bottom: 20px;
    color: #2c3e50;
}

h2 {
    font-size: 1.5em;
    margin-top: 30px;
    margin-bottom: 10px;
    color: #34495e;
}

#pdf-upload {
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    cursor: pointer;
    font-size: 1em;
    transition: border 0.3s ease, box-shadow 0.3s ease;
}

#pdf-upload:hover {
    border-color: #3498db;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.5);
}

#output {
    width: 80%;
    max-width: 600px;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    resize: none;
    font-family: monospace;
    font-size: 1em;
    background-color: #fff;
    transition: border 0.3s ease, box-shadow 0.3s ease;
}

#output:focus {
    border-color: #3498db;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.5);
    outline: none;
}

#copyBtn {
    margin-top: 15px;
    padding: 10px 20px;
    font-size: 1em;
    border: none;
    border-radius: 5px;
    background-color: #3498db;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

#copyBtn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

#copyBtn:active {
    transform: translateY(0);
}