body {
    font-family: Arial, sans-serif;
    background: #f3f7f7;
    margin: 0;
}

.appointment-container {
    max-width: 600px;
    background: white;
    padding: 35px;
    margin: 50px auto;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.appointment-container h2 {
    text-align: center;
    margin-bottom: 25px;
    font-size: 32px;
    font-weight: bold;
}

.appointment-form .form-group {
    margin-bottom: 18px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

input,
select,
textarea {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #ccc;
    font-size: 16px;
    outline: none;
    background: #ffffff;
}

textarea {
    resize: none;
}

.form-row {
    display: flex;
    gap: 15px;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    margin-top: 10px;
    background: linear-gradient(to right, #00b8a4, #008e7f);
    color: white;
    font-size: 18px;
    font-weight: bold;
    border: none;
    border-radius: 40px;
    cursor: pointer;
    transition: 0.3s ease;
}

.submit-btn:hover {
    opacity: 0.9;
}

/* Responsive */
@media (max-width: 600px) {
    .form-row {
        flex-direction: column;
    }

    .appointment-container {
        margin: 20px;
        padding: 25px;
    }

    .appointment-container h2 {
        font-size: 26px;
    }
}