* {
    box-sizing: border-box;
    margin-inline: 0;
    margin-block: 0;
    padding-inline: 0;
    padding-block: 0;
    margin: 0;
    padding: 0;
    text-wrap: pretty;
}
:root {
    --gray-1: rgb(226, 226, 226);
    --gray-2: rgb(162, 162, 162);
    --gray-3: rgb(107, 108, 112);
    --gray-4: rgb(64, 65, 69);
    --gray-5: rgb(37, 39, 44);
    --gray-6: rgb(25, 26, 29);
    --transparent-gray-6: rgba(25, 26, 29, 0.5);
    --teal-1: rgb(212, 247, 242);
    --teal-2: rgb(177, 227, 219);
    --teal-3: rgb(126, 183, 173);
    font-size: clamp(0.75em, 1.5vw, 1em);
}
body {
    font-family: 'Open Sans', sans-serif;
    background-color: var(--gray-5);
    color: var(--gray-1);
    font-weight: 400;
    font-size: 1.5rem;
    line-height: 1.4;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}
main {
    margin: 1.5rem;
    max-width: 60rem;
}
h1 {
    font-weight: 700;
    font-style: italic;
    letter-spacing: 0.05ch;
    font-size: 2rem;
    text-align: center;
}


/* text styling */

a {
    text-decoration: none;
    cursor: pointer;
}
a.link {
    color: var(--gray-2);
    font-size: 1rem;
    display: block;
}
.link:hover span, .link:focus-visible span {
    text-decoration: underline;
}

.bottom-links {
    display: flex;
    gap: 3rem;
    justify-content: center;
    margin-bottom: 2rem;
}


/* navigation */

#main-nav {
    height: 3rem;
    width: 100%;
    background: var(--teal-2);
    display: flex;
    position: sticky;
    top: 0;
    box-shadow: 0 0 15px 5px var(--transparent-gray-6);
    z-index: 10;
}
.nav-link {
    font-size: 1rem;
    height: 3rem;
    color: var(--gray-6);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-inline: 1rem;
    cursor: pointer;
}
.nav-link span {
    font-size: 1rem;
}
.nav-link i {
    font-size: 1.5rem;
}
.nav-dropdown {
    position: relative;
}
#main-nav ul {
    background-color: var(--teal-3);
    position: absolute;
    width: max-content;
    top: 3rem;
    left: 0;
    display: none;
}
#main-nav div:focus-visible ul {
    display: flex;
    flex-direction: column;
    justify-content: center;
}
@media (hover: hover) {
    #main-nav div:hover ul {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
}
#main-nav li {
    width: 100%;
}
a.nav-link-icon, a.nav-link-icon i, .nav-link-main {
    transition: 0.5s all;
}
.nav-link-main + .nav-link-icon {
    margin-left: auto;
}
a.nav-current, a.nav-link-main:hover, a.nav-link-main:focus-visible, li.nav-link:hover, li.nav-link:focus-visible {
    text-decoration: underline;
}
a.nav-link-icon:hover i, a.nav-link-icon:focus-visible i {
    transform: scale(1.1);
}
a.nav-link:hover, a.nav-link:focus-visible, div.nav-link:hover, div.nav-link:focus-visible {
    background: var(--teal-1);
}
li.nav-link:hover, li.nav-link:focus-visible {
    background: var(--teal-2);
}
.nav-current {
    font-weight: 700;
}
button, a.button-link {
    display: block;
    font-size: 1rem;
    color: var(--gray-6);
    font-family: 'Open Sans', sans-serif;
    background: var(--teal-2);
    outline: none;
    border: none;
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    transition: 0.5s all;
    cursor: pointer;
}
button:focus-visible, a.button-link:focus-visible, button:hover, a.button-link:hover {
    background: var(--teal-1);
    transform: scale(1.1);
}