body {
    background: #111827;
    color: white;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    padding-top: 50px;
}

.container {
    background: #1f2937;
    padding: 30px;
    border-radius: 12px;
    width: 500px;
}

h1,
h4 {
    text-align: center;
}

form {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

input[type="file"] {
    flex: 1;
}

button {
    background: #3b82f6;
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
}

a {
    color: #60a5fa;
}