style.css

body {
    background-color: whitesmoke;
    box-sizing: border-box;
}

/*hero section */
h1 {
    font-family: Lato, Arial, sans-serif;
    text-transform: uppercase;
    font-size: 1.5rem;
    margin-left: 20px;
}

.hero-video {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
    margin-bottom: 30px;
}

.hero-video video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -1;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

/*navigation menu */

.navbar {
    display: flex;
    justify-content: center;
    align-items: center;
    text-transform: uppercase;
    font-family: Lato, Arial, sans-serif;
    word-spacing: 10px;
    padding: 10px 0;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
}

/*links */

a {
    color: black;
    text-decoration: none;
}


/*text section */

h2 {
    font-family: Lato, Arial, sans-serif;
    text-transform: uppercase;
    text-align: center;
    font-size: 1.25rem;
    margin: 10px 0;
}

p {
    font-family: Baskerville, Times, serif;
    font-size: 1.1 rem;
    text-align: center;
    margin: 80px;
    margin-top: 20px;
    margin-bottom: 40px;
}

/*heading inside form */

h3 {
    font-family: Lato, Arial, sans-serif;
    text-transform: uppercase;
    font-size: 1rem;
    margin: 10px 0;
}

/*form */

form {
    font-family: Baskerville, Times, serif;
    border: 1px solid grey;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    padding: 10px;
    margin: 10px auto;
    margin-bottom: 0px;
    max-width: 90%;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* placeholders in inputs */

::placeholder {
    text-align: left;
    font-family: Baskerville, Times, serif;
    color: black;
}

/*input fields in form */

input {
    width: 100%;
    max-width: 280px;
    font-size: 0.875rem;
    padding: 8px;
    border: none;
    border-bottom: 1px solid black;
    background-color: whitesmoke;
    margin: 5px 0;
}

/*date of birth input */

.date-label {
    width: 100%;
    max-width: 200px;
    font-family: Baskerville, Times, serif;
    margin: 5px 0;
}

.date-label input[type="date"] {
    width: 100%;
    font-size: 0.875rem;
    border: none;
    border-bottom: 1px solid black;
    background-color: whitesmoke;
    margin-top: 5px;
}

/*terms and conditions */

.checkbox {
    display: inline-flex;
    align-items: center;
    font-family: Baskerville, Times, serif;
    white-space: nowrap;
    margin: 5px 0;
}

/*sibmit button */

button {
    background-color: black;
    color: white;
    border: 1px solid white;
    width: 100%;
    max-width: 150px;
    font-size: 0.875rem;
    font-weight: bold;
    padding: 8px;
    margin: 10px 0;
    cursor: pointer;
}

button:hover {
    background-color: white;
    color: black;
    border: 1px solid black;
}



/* Responsive design */

@media (max-width: 1024px) {
    h1 {
        font-size: 1.75rem;
    }

    .navbar {
        padding: 10px 15px;
        word-spacing: 5px;
    }

    input,
    .date-label input[type="date"],
    button {
        width: 80%;
    }
}

/* Responsive design for tablets */


@media (max-width: 768px) {
    h1 {
        font-size: 1.5rem;
    }

    .navbar {
        padding: 10px 10px;
        word-spacing: 2px;
    }

    input,
    .date-label input[type="date"],
    button {
        width: 70%;
    }

    form {
        padding: 15px;
        margin: 15px auto;
    }
}

/* Responsive design for smartphones 667px */


@media (max-width: 667px) {
    h1 {
        font-size: 1rem;
        margin: 5px 0;
        text-align: center;
    }

    .navbar {
        display: flex;
        flex-direction: column;
        position: relative;
        text-align: center;
    }

    p {
        display: flex;
        text-align: center;
        margin-top: 20px;
        margin-bottom: 20px;
    }

    input,
    .date-label input[type="date"],
    button {
        width: 90%;
    }

    form {
        padding: 10px;
        margin: 10px auto;
    }
}

/* Responsive design for smartphones 320px */

@media (max-width: 320px) {
    h1 {
        font-size: 1rem;
        margin: 5px 0;
        text-align: center;
    }

    .navbar {
        display: flex;
        flex-direction: column;
        position: relative;
        text-align: center;
    }


    p {
        display: flex;
        text-align: center;
        margin-top: 20px;
        margin-bottom: 20px;
    }

    input,
    .date-label input[type="date"],
    button {
        width: 95%;
    }

    form {
        padding: 8px;
        margin: 5px auto;
    }
}