body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1 {
    color: #333;
}

.container {
    max-width: 100%;
    padding: 0 15px;
    margin: 0 auto;
    flex: 1;
    display: flex;
    justify-content: center; 
    align-items: center;
}

.form-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin: 20px auto;
    max-width: 600px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.form-header {
    color: #333;
    font-size: 1.5rem;
    margin-bottom: 20px;
    text-align: center;
}

.form-label {
    display: block;
    font-weight: bold;
    color: #555;
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
}

input[type="text"], input[type="file"], select {
    width: 94%; 
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
}

button {
    padding: 12px 20px;
    background-color: #5cb85c;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
    align-self: center; 
}

button:hover {
    background-color: #4cae4c;
}

.btn-primary {
    background-color: #007bff;
    color: #fff;
    padding: 12px;
    font-size: 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
    align-self: center; 
}

.btn-primary:hover {
    background-color: #0056b3;
}

.success-message {
    color: green;
    font-weight: bold;
    text-align: center;
}

.alert {
    color: #fff;
    background-color: #28a745;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
}

.d-grid {
    display: grid;
    gap: 10px;
}


.mb-3 {
    display: flex;
    flex-direction: column;
}


@media (max-width: 992px) {
    .form-container {
        padding: 18px;
        margin: 15px auto;
    }

    .form-header {
        font-size: 1.4rem;
    }
}

@media (max-width: 768px) {
    .form-container {
        padding: 15px;
        margin: 10px auto;
    }

    .form-header {
        font-size: 1.3rem;
    }

    .form-control {
        padding: 10px;
        font-size: 0.95rem;
    }

    button, .btn-primary {
        font-size: 0.95rem;
        padding: 10px;
    }
}

@media (max-width: 576px) {
    .form-container {
        padding: 12px;
        margin: 8px auto;
    }

    .form-header {
        font-size: 1.2rem;
    }

    .form-control {
        padding: 8px;
        font-size: 0.9rem;
    }

    button, .btn-primary {
        font-size: 0.9rem;
        padding: 8px;
    }
}

@media (max-width: 400px) {
    .form-container {
        padding: 10px;
        margin: 5px auto;
    }

    .form-header {
        font-size: 1.1rem;
    }

    .form-control {
        padding: 6px;
        font-size: 0.85rem;
    }

    button, .btn-primary {
        font-size: 0.85rem;
        padding: 6px;
    }
}