/* General */
:root {
    --clr-white: white;
    --clr-gray: hsl(0, 0%, 35%);
    --clr-gray-transparent: hsl(0, 0%, 35%, 15%);
    --clr-gray-transparent-hover: hsl(0, 0%, 35%, 50%);
    --clr-black: black;

    color: var(--clr-white);
    background-color: var(--clr-black);

    font-family: "BlenderProBook", monospace;

    scroll-behavior: smooth;
}

@font-face {
    font-family: "BlenderProBook";
    src: url(/fonts/BlenderProBook/BlenderProBook.ttf);
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

button {
    font: inherit;

    background: none;
    border: none;
    color: var(--clr-gray);
    text-shadow: 0 0 5px hsl(0, 0%, 0%, 80%);
    cursor: pointer;

    transition: color .3s ease;
}

button:hover {
    color: var(--clr-white);
}

::selection {
    background-color: var(--clr-white);
    color: var(--clr-black);
}

body {
    display: grid;
    font-size: 1.2rem;
}

main {
    backdrop-filter: blur(20px);
    background-color: hsl(0, 0%, 0%, 55%);
    box-shadow: 0 0 35px 5px hsl(0, 0%, 0%, 80%);
    border-top: solid 2px hsl(0, 0%, 100%, 1%);
}

#noise-overlay {
    /* display: block; */
    z-index: 999;
    position: fixed;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    pointer-events: none;
}

#noise-overlay::after {
    /* display: block; */
    content: "";
    position: absolute;
    will-change: transform;
    animation: noiseAnimation 1s steps(4) infinite;
    opacity: 18%;
    background-image: url("/img/noise-overlay.png");
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
}

@keyframes noiseAnimation {
    0% {
        transform: translate(0);
    }

    10% {
        transform: translate(-5%, -5%);
    }

    20% {
        transform: translate(-10%, 5%);
    }

    30% {
        transform: translate(5%, -10%);
    }

    40% {
        transform: translate(-5%, 15%);
    }

    50% {
        transform: translate(-10%, 5%);
    }

    60% {
        transform: translate(15%);
    }

    70% {
        transform: translateY(10%);
    }

    80% {
        transform: translate(-15%);
    }

    90% {
        transform: translate(10%, 5%);
    }

    100% {
        transform: translate(5%);
    }
}





/* Cover image */
#img-cover-container {
    z-index: -999;
    position: fixed;

    filter: hue-rotate(210deg);
}

#img-planet-layers {
    filter: hue-rotate(0deg);

    width: 100vw;
    height: 100vh;
}

#img-planet-layers img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#img-planet-atmosphere {
    z-index: 1;
    position: fixed;
    top: 0;

    opacity: 0;
    transition: opacity 1s ease;
}




/* ===== section-home ===== */
#section-home {
    height: 100vh;
    display: grid;
    place-content: center;

    position: relative;
    /* This is due to #nav-top & #nav-bottom having position: absolute! */
}

#logo svg {
    width: 1100px;
    padding: 0 4rem;
    fill: var(--clr-white);
    filter: drop-shadow(0 0 15px hsla(0, 0%, 0%, 20%));
}

#btn-explore {
    z-index: 2;
    position: absolute;
    bottom: 4rem;
    left: 0;
    right: 0;
    width: fit-content;
    margin: 0 auto;

    background: none;
    color: var(--clr-white);
    outline: var(--clr-white) solid 1px;
    outline-offset: -1px;
    border: none;

    text-shadow: none;
    text-transform: uppercase;
    text-align: center;
    padding: 1rem 1.125rem;

    cursor: pointer;

    transition: background-color .3s ease, color .3s ease;
}

#btn-explore::after {
    content: "";
    position: absolute;
    z-index: -1;

    background-color: var(--clr-white);
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0%;

    pointer-events: none;

    transition: height .3s ease;
}

#btn-explore:hover::after {
    height: 100%;
}

#btn-explore:hover {
    color: var(--clr-black);
}

#nav-top,
#nav-bottom {
    z-index: 1;
    position: fixed;

    width: 100%;
    padding: 0 4rem;

    display: flex;
    justify-content: space-between;
}

.currently-visiting {
    color: var(--clr-gray);
    text-shadow: 0 0 5px hsl(0, 0%, 0%, 80%);
    text-transform: uppercase;
}

.currently-visiting_planet {
    color: var(--clr-white);
    text-shadow: 0 0 5px hsl(0, 0%, 0%, 80%);
    text-transform: none;
}

.btn-queue {
    display: flex;
    gap: .75rem;
}

.btn-catalog {
    width: 20px;
    fill: var(--clr-gray);
    filter: drop-shadow(0 0 5px hsl(0, 0%, 0%, 80%));
    transition: fill .3s ease;
    cursor: pointer;
}

.btn-catalog:hover {
    fill: var(--clr-white);
}

#catalog-container {
    position: fixed;
    z-index: 3;

    height: 0dvh;
    width: 100%;
    padding: 0;
    overflow-y: scroll;

    display: flex;
    flex-direction: column;

    backdrop-filter: blur(40px);
    background-color: hsl(0, 0%, 0%, 75%);
    /* background-image: linear-gradient(hsl(0, 0%, 100%, 75%), hsl(0, 0%, 0%, 75%)); */
    box-shadow: 0 0 35px 5px hsl(0, 0%, 0%, 80%);

    transition: height .5s ease, padding .5s ease;
}

#catalog-nav {
    z-index: 1;
    position: sticky;
    top: 1rem;
    display: flex;
    justify-content: space-between;
    margin-bottom: 4rem;
}

#catalog-search-input {
    z-index: 1;
    display: block;
    overflow-wrap: normal;
    width: 35%;
    padding: 1rem;
    margin: 0 auto 4rem auto;
    font-size: 1.5rem;
    font-family: "BlenderProBook", monospace;

    border-radius: 0;
    border: none;
    background: none;
    background-color: var(--clr-gray-transparent);
    color: white;
}

#catalog-search-input:focus {
    outline: none;
}

#catalog {
    padding: 0;
    display: grid;
    gap: 4rem;
    grid-template-columns: repeat(4, 1fr);

    transition: padding .5s ease;
}

.catalog-open {
    height: 100dvh !important;
    padding: 4rem !important;
}

.body-lock {
    overflow: hidden;
}

#catalog div {
    padding: 4rem;
    outline: solid 1px var(--clr-gray-transparent);
    outline-offset: -1px;

    text-shadow: 0 0 5px hsl(0, 0%, 0%, 80%);
    text-align: center;
    cursor: pointer;

    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    transition: background-color .5s ease;

    position: relative;
}

#catalog div:hover {
    background-color: var(--clr-gray-transparent);
}

#catalog div::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background-color: hsl(0, 0%, 0%, 40%);

    transition: background-color .3s ease;
}

#catalog div:hover::after {
    background-color: hsl(0, 0%, 0%, 90%);
}




/* ===== section-explore ===== */
#section-explore {
    /* height: 100vh; */
    /* backdrop-filter: blur(20px);
    background-color: hsl(0, 0%, 0%, 50%); */

    padding: 9rem 4rem 4rem 4rem;

    display: grid;
    gap: 4rem;
    /* grid-template-columns: 40% 60%; */
    grid-template-areas:
        "a b";
}



#planet-info-container {
    grid-area: a;
    display: flex;
    outline: solid 1px var(--clr-gray-transparent);
    outline-offset: -1px;
    padding: 4rem;
}

#planet-info,
#travel-info {
    list-style-type: none;
}

#planet-info li:nth-child(odd),
#travel-info li:nth-child(odd) {
    color: var(--clr-gray);
    text-transform: uppercase;
    text-shadow: 0 0 5px hsl(0, 0%, 0%, 80%);
}

#planet-info li:nth-child(even),
#travel-info li:nth-child(even) {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

#planet-info li:last-child {
    margin-bottom: 0;
}

#planet-info_observer-location {
    color: var(--clr-white);
    outline: solid 1px var(--clr-gray-transparent-hover);
    outline-offset: -1px;

    margin-left: 0.375rem;
    padding: 0.25rem 0.375rem;
    text-transform: uppercase;
    font-size: .65rem;
    letter-spacing: 0.035rem;
    border-radius: 3px;
}

#planet-description-container {
    grid-area: b;
    outline: solid 1px var(--clr-gray-transparent);
    outline-offset: -1px;
    padding: 4rem;
}

#planet-description-container span {
    color: var(--clr-gray);
    text-transform: uppercase;
    text-shadow: 0 0 5px hsl(0, 0%, 0%, 80%);
}

#planet-description {
    margin-top: 0.375rem;
}

#section-travel-time {
    outline: solid 1px var(--clr-gray-transparent);
    outline-offset: -1px;

    margin: 0 4rem 4rem 4rem;
    padding: 4rem;

    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

#travel-info-container {
    height: 70%;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

#travel-info-container>span {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 4rem;
}

#travel-info {
    height: 100%;
    display: flex;
    gap: 0.625rem;
}

#travel-info div {
    width: 100%;
    display: grid;
    place-content: center;
}

#travel-info li {
    text-align: center;
}

#btn-speed_container {
    height: 30%;
    display: flex;
    gap: 0.625rem;
}

#btn-speed_container div {
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem;

    cursor: pointer;

    background-color: var(--clr-gray-transparent);
    transition: background-color .5s ease;
}

#btn-speed_container div:hover {
    background-color: var(--clr-gray-transparent-hover);
}

.btn-speed_selected {
    background-color: var(--clr-gray) !important;
}

.btn-speed_icon {
    width: 85px;
    margin-bottom: 1rem;
}




#section-last-peek {
    height: 80vh;

    display: flex;
    align-items: end;
}

#planet-controls {
    margin: auto auto 4rem 4rem;
    color: var(--clr-gray);
}





footer {
    /* height: 25vh; */
    padding: 2rem;

    backdrop-filter: blur(20px);
    background-color: hsl(0, 0%, 0%, 55%);
    box-shadow: 0 0 35px 5px hsl(0, 0%, 0%, 80%);
    border-top: solid 2px hsl(0, 0%, 100%, 1%);

    color: var(--clr-gray);
}

footer div {
    /* outline: solid 1px var(--clr-gray-transparent);
    outline-offset: -1px;
    padding: 4rem; */

    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

#btn-top {
    width: 2.5rem;
    height: 2.5rem;
    fill: var(--clr-gray);
    text-transform: uppercase;
    cursor: pointer;

    margin-bottom: 2rem;

    transition: fill .3s ease;
}

#btn-top:hover {
    fill: var(--clr-white);
}

footer p,
footer a {
    font-size: 1rem;
}

footer a {
    margin-bottom: 1rem;
    text-decoration: none;
    color: var(--clr-gray);
    transition: color .3s ease;
}

footer a:hover {
    color: var(--clr-white);
}





/* ===== Mobile view ===== */
#mobile-view {
    display: none;
}

#nav-top {
    display: none;
}

@media (max-width: 1250px) {
    #nav-top {
        top: 4rem;
        display: flex;
    }

    #nav-bottom {
        display: none;
    }

    #catalog {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    #catalog-search-input {
        width: 50%;
    }

    #section-explore {
        padding: 9rem 1rem 1rem;

        display: grid;
        grid-template-areas:
            "a"
            "b";
    }

    #section-travel-time {
        margin: 0 1rem 1rem;
    }

    #planet-info-container {
        justify-content: center;
        text-align: center;
    }

    #travel-info {
        flex-direction: column;
    }

    #btn-speed_container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
            "a b"
            "c d";
    }

    #btn-speed_container div:nth-child(1) {
        grid-area: a;
    }

    #btn-speed_container div:nth-child(2) {
        grid-area: b;
    }

    #btn-speed_container div:nth-child(3) {
        grid-area: c;
    }

    #btn-speed_container div:nth-child(4) {
        grid-area: d;
    }
}

@media (max-width: 750px) {
    #nav-top {
        z-index: 0;
    }

    #section-home {
        z-index: 0;
        pointer-events: none;
    }

    #btn-explore {
        pointer-events: all;
    }

    #catalog-container {
        padding: 0;
    }

    #catalog {
        display: grid;
        grid-template-columns: 1fr;
    }

    .catalog-open {
        padding: 4rem 2rem !important;
    }

    #catalog-nav {
        position: relative;

        flex-direction: column-reverse;
        gap: 2rem;
        align-items: center;
    }

    #catalog-search-input {
        width: 100%;
        margin: 1rem auto 3rem auto;
    }

    #nav-top {
        flex-direction: column-reverse;
        gap: 2rem;
        align-items: center;
        justify-content: center;
    }

    .currently-visiting {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    #section-explore {
        padding: 2rem 0 0 0;
        gap: 2rem;
    }

    #planet-info-container,
    #planet-description-container {
        outline: none;
        padding: 2rem;
    }

    #section-travel-time {
        outline: none;
        padding: 3rem 1rem 2rem;
    }

    #travel-info-container>span {
        margin-bottom: 2rem;
    }

    #travel-info {
        gap: 0rem;
    }

    #btn-speed_container div {
        font-size: 1rem;
        padding: 2rem;
    }

    #planet-controls {
        margin: auto auto 4rem;
    }
}

@media (max-width: 375px) {
    #section-explore {
        gap: 1rem;
    }

    #section-travel-time {
        margin: 0 .5rem 1rem;
    }

    .catalog-open {
        padding: 4rem 2rem !important;
    }

    .btn-speed_icon {
        width: 75px;
    }
}