```

***

### 2. CSS Styling (`style.css`)

This CSS provides a clean, modern, and responsive design. Create a file named `style.css` in the same folder as your HTML file and paste this code into it.

```css
/* --- Basic Setup & Variables --- */
:root {
    --primary-color: #007bff;
    --primary-hover-color: #0056b3;
    --background-color: #f4f7f6;
    --form-background-color: #ffffff;
    --text-color: #333;
    --label-color: #555;
    --border-color: #ccc;
    --input-focus-border: #007bff;
    --error-color: #d9534f;
    --font-family: 'Roboto', sans-serif;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    margin: 0;
    padding: 2rem;
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* --- Form Container --- */
.form-container {
    max-width: 800px;
    width: 100%;
	height:100%;
    background-color: var(--form-background-color);
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.booking-form h1 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 0.5rem;
}

.booking-form p {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--label-color);
}

/* --- Fieldsets for Structure --- */
fieldset {
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

legend {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--primary-color);
    padding: 0 0.5rem;
}

/* --- Form Layout --- */
.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.form-group {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
}

.form-group:last-child {
    margin-bottom: 0;
}

/* --- Form Elements Styling --- */
label {
    margin-bottom: 0.5rem;
    color: var(--label-color);
    font-weight: 500;
}
textarea{
    width:100%;
    height:auto;
}
input[type=\"text\"],
input[type=\"email\"],
input[type=\"tel\"],
input[type=\"date\"],
input[type=\"time\"],
input[type=\"number\"],
select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--input-focus-border);
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.25);
}

/* --- Checkbox Styling --- */
.checkbox-group, .terms-group {
    display: flex;
    align-items: center;
    flex-direction: row;
    margin-bottom: 0.5rem;
}

.checkbox-group input[type=\"checkbox\"],
.terms-group input[type=\"checkbox\"] {
    margin-right: 0.75rem;
    width: auto;
    height: 1.2em;
    width: 1.2em;
}

.checkbox-group label, .terms-group label {
    margin-bottom: 0;
    font-weight: 400;
}

.terms-group a {
    color: var(--primary-color);
    text-decoration: none;
}

.terms-group a:hover {
    text-decoration: underline;
}


/* --- Submit Button --- */
.submit-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.2rem;
    font-weight: 700;
    color: #d9534f;
    background-color: var(--primary-color);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    margin-top: 1rem;
}

.submit-btn:hover {
    background-color: var(--primary-hover-color);
    transform: translateY(-2px);
}

/* --- Responsive Design --- */
@media screen (max-width: 600px) {
    body { width:100%;
	height:100%;
        padding: 1rem;
    }
    .form-container {
        padding: 1.5rem;
    }
    .form-row {
        flex-direction: column;
        gap: 1rem;
    }
}