body {
    font-family: Arial, sans-serif;
    background: #f4f6fb;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    /* Remove justify-content: center; */
}

.main-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 48px;
}

h1 {
    color: #2d3a4b;
    margin-bottom: 24px;
}
form {
    background: #fff;
    padding: 32px 24px;
    border-radius: 12px;
    box-shadow: 0 2px 16px rgba(44, 62, 80, 0.08);
    display: flex;
    flex-direction: column;
    gap: 18px;
    min-width: 320px;
}
label {
    font-weight: 500;
    color: #34495e;
    margin-bottom: 6px;
}
input[type="file"] {
    padding: 6px 0;
}
button[type="submit"] {
    background: #2d8cff;
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 10px 0;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}
button[type="submit"]:hover {
    background: #1761c7;
}

.result-container {
    display: none;
}