body {
        margin: 0;
        font-family: 'Segoe UI', Tahoma, sans-serif;
        background: #f0f2f5;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        min-height: 100vh;
        padding: 2rem 1rem;
    }

    .logo img {
        max-width: 150px;
        height: auto;
        margin-bottom: 1rem;
    }

    .login-container {
        background: #fff;
        padding: 2rem 2.5rem;
        border-radius: 10px;
        box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        max-width: 400px;
        width: 100%;
        text-align: center;
    }

    h1 {
        font-size: 1.75rem;
        color: #333;
        margin-bottom: 1.5rem;
    }

    label {
        display: block;
        margin-bottom: 0.5rem;
        font-weight: 600;
        text-align: left;
    }

    .form-group {
        margin-bottom: 1.25rem;
        text-align: left;
    }

    input[type="text"],
    input[type="password"] {
        width: 100%;
        padding: 0.5rem 0.75rem;
        font-size: 1rem;
        border: 1.5px solid #ccc;
        border-radius: 6px;
        margin-top: 5px;
    }

    input[type="submit"] {
        width: 100%;
        padding: 0.75rem;
        font-size: 1rem;
        background-color: #4a90e2;
        color: white;
        border: none;
        border-radius: 6px;
        font-weight: 600;
        cursor: pointer;
        transition: background-color 0.3s;
    }

    input[type="submit"]:hover {
        background-color: #357abd;
    }

    .error-message {
        color: red;
        font-size: 0.9rem;
        margin-top: 1rem;
    }

    @media (max-width: 480px) {
        .logo img {
            max-width: 100px;
        }

        .login-container {
            padding: 1.5rem 1.5rem;
        }

        h1 {
            font-size: 1.25rem;
        }

        input[type="text"],
        input[type="password"],
        input[type="submit"] {
            font-size: 0.95rem;
            padding: 0.5rem 0.6rem;
        }
    }

    @media (max-width: 480px) {
    .logo img {
        max-width: 100px;
    }

    .login-container {
        padding: 1.5rem 1.5rem;
    }

    h1 {
        font-size: 1.25rem;
    }

    input[type="text"],
    input[type="password"],
    input[type="submit"] {
        font-size: 0.95rem;
        padding: 0.5rem 0.6rem;
        width: 90%;               /* 👈 Weniger breit */
        margin: 0 auto;           /* 👈 Zentriert */
        display: block;           /* 👈 Nötig für margin: auto */
    }
}