@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

/* Define a consistent color palette and variables */
:root {
    --page-background: #f0f2f5;
    --form-background: #ffffff;
    --border-color: #d9d9d9;
    --text-color: #333;
    --label-color: #555;
    --accent-color: #007bff;
    --accent-hover: #0056b3;
    --success-color: #28a745;
    --error-color: #dc3545;
}

/* --- Global & Form Container --- */
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--page-background);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

h1 {
    text-align: center;
    font-weight: 600;
    margin-bottom: 1rem;
}

p {
    text-align: center;
    margin-bottom: 2rem;
    color: #666;
}

.form-container {
    width: 100%;
    max-width: 450px;
    padding: 2.5rem;
    background-color: var(--form-background);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
}

/* --- Form Elements --- */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--label-color);
    font-weight: 600;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

/* --- Submit Button --- */
.form-submit-group {
    text-align: center;
    margin-top: 2rem;
}

.submit-button {
    width: 100%;
    padding: 12px 30px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.submit-button:hover {
    background-color: var(--accent-hover);
}

/* --- Server Response --- */
#server-response {
    text-align: center;
    padding: 1rem;
    margin-top: 1.5rem;
    border-radius: 6px;
    font-weight: 600;
}

#server-response.success {
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(40, 167, 69, 0.2);
}

#server-response.error {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(220, 53, 69, 0.2);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .form-container {
        margin: 1rem;
        padding: 1.5rem;
    }
}