body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
    text-align: center;
    width: 90%;
    max-width: 500px;
}

h1 {
    color: #4a90e2;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.converter-box {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.file-input {
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.file-input:hover {
    border-color: #4a90e2;
}

.format-dropdown {
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.convert-button {
    padding: 10px;
    font-size: 1rem;
    color: #fff;
    background: #4a90e2;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.convert-button:hover {
    background: #357abd;
}

#canvas {
    margin-top: 20px;
    max-width: 100%;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.download-link {
    display: none;
    margin-top: 15px;
    text-decoration: none;
    color: #ffffff;
    background-color: #5cb85c;
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.download-link:hover {
    background-color: #4cae4c;
}