/* General Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    display: grid;
    place-items: center;
    min-height: 100vh;
    background-color: #f4f4f9;
    margin: 0;
}

.container {
    background: white;
    padding: 20px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
    display: grid;
    gap: 20px;
}

h1 {
    text-align: center;
    color: #333;
}

form {
    display: grid;
    gap: 15px;
}

.input-group {
    display: grid;
    gap: 5px;
}

.input-group label {
    font-size: 14px;
    color: #555;
}

.input-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s;
}

/* For readonly inputs */
.input-group input[readonly] {
    background-color: #f9f9f9;
    cursor: not-allowed;
}

.input-group input:focus {
    border-color: #6c63ff;
    outline: none;
}

.btn-submit {
    margin-top: 10px;
    padding: 12px;
    padding-inline: 30px;
    border: none;
    background: #6c63ff;
    color: white;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.3s;
}

.btn-submit:hover {
    background: #5750d9;
}

#appointment-error {
    color: red;
    margin-top: 10px;
}

#appointment-success {
    color: green;
    margin-top: 10px;
}