body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #0078d7;
    color: white;
    padding: 1rem 2rem;
}

.main-header .logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.main-nav a {
    color: white;
    text-decoration: none;
    margin: 0 1rem;
}

#hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(to right, #0078d7, #00aaff);
    color: white;
}

#features {
    padding: 2rem;
    background: #fff;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.feature-item {
    background: #f9f9f9;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    text-align: center;
}

#upload {
    padding: 2rem;
    text-align: center;
}

form {
    margin-top: 1rem;
}

input[type="file"] {
    margin-bottom: 1rem;
}

button {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 3px;
}

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

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1rem;
    position: relative;
    bottom: 0;
    width: 100%;
}