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

* {
    margin: 0;
    box-sizing: border-box;
    font-family: 'Ubuntu Mono', monospace;
    color: #1A202C;
}

body {
    background-color: #D9D9D9;
}

header {
    background-color: white;
    background-color: transparent;
    backdrop-filter: blur(0.5rem);
    padding: 0.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 0 1rem #1A202C33;
}

header > a,
header > a > img {
    height: 5rem;
}

header > nav {
    margin-right: 1rem;
}

header > nav > ul {
    gap: 2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
}

@media (max-width: 700px) {  
    header {
        flex-direction: column;
        padding-bottom: 1.5rem;
    }
}

header > nav > ul > li a {
    font-weight: bold;
    text-decoration: none;
    border-bottom: 0.15rem solid #D9D9D9;
    padding: 0 0 4px;
}

header > nav > ul > li a:hover {
    border-bottom: 0.15rem solid #1A202C;
}

.sub-nav-list {
    gap: 0.5rem;
    display: flex;
    list-style: none;
    padding: 0.5rem;
    padding-left: 1rem;
    padding-right: 1rem;
    background: #D9D9D9;
    flex-direction: column;
    position: absolute;
}

#scroll-notice {
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    position: absolute;
    bottom: 1rem;
    gap: 0.5rem;
    cursor: pointer;
}

#scroll-notice > div {
    border: #1A202C 0.15rem solid;
    border-radius: 5rem;
    width: 1.5rem;
    padding: 0.25rem 0;
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}

#scroll-notice > p {
    font-weight: bold;
}

main, section {
    display: flex;
    text-align: center;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    padding: 4rem;
}

main {
    position: relative;
    height: calc(100vh - 96px);
}

section {
    background-color: #D9D9D9;
}

section > ul {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

section > ul > li {
    background-color: #e2e2e2;
}

main > h1, section > h1 {
    font-size: 3rem;
    font-weight: bold;
    line-height: 4.5rem;
}

main > p, section > p {
    font-size: 1.25rem;
}

main > h1 {
    margin-top: -4rem;
}

main > h1 > strong {
    font-size: 3rem;
    font-weight: bold;
    color: white;
    background-color: #1A202C;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
}

main > video {
    object-fit: cover;
    width: 100vw;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
}

footer {
    background-color: #1A202C;
    backdrop-filter: blur(0.5rem);
    padding: 2rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: start;
    box-shadow: 0 0 1rem #1A202C33;
    gap: 1rem;
}

footer > img {
    background-color: #e2e2e2;
    border-radius: 0.5rem;
    height: 4rem;
}

footer > p {
    color: #e2e2e2;
}

form {
    padding: 4rem;
}

div {
    background-size: cover;
    background-position: center;
}