style.css

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,300;0,400;0,500;0,700;1,400&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
    scroll-behavior: smooth;
}

.banner {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url(img/bg.jpg);
    background-size: cover;
}

.banner .content {
    max-width: 900px;
    text-align: center;
}

.banner .content h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 4em;
    color: #4ff00f;
}

.banner .content p {
    margin-top: 20px;
    font-size: 1em;
    color: #fff;
}

section {
    padding: 100px;
}

.page1 {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #fff;
    height: 100vh;
    background-color: #000000;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 40px 100px;
    z-index: 10000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: 0.5s;
}

header.sticky {
    background: #fff;
    padding: 10px 100px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
} 

.logo {
    color: antiquewhite;
    text-decoration: none;
    font-size: 2em;
}

header.sticky .logo {
    color: #111;
}

.navbar {
    display: flex;
    padding: 0 auto;
    justify-content: space-between;
    align-items: center;
}

.navbar ul {
    position: relative;
    display: flex;
    list-style: none;
}

.navbar ul li {
    margin-left: 32px;
}

.navbar ul li a {
    text-decoration: none;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
}

.navbar .cta {
    background-color: #4ff00f;
    padding: 8px 16px;
    border-radius: 25px;
    color: white;
    transition: 0.2s;
}

.navbar .cta:hover {
    background-color: #4bd614;
    color: white;
}

.navbar ul li a:hover {
    color: rgb(184, 181, 181);
}


header.sticky li a {
    color: rgb(14, 0, 78);
}

header.sticky li a:hover {
    color: rgb(0, 255, 42);
}