@import "https://fonts.googleapis.com/css2?family=Red+Hat+Text:wght@500;700&display=swap";

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

:root {
    --cl-gb-400: hsl(237, 18%, 59%);
    --cl-sr-400: hsl(345, 95%, 68%);
    
    --cl-wh-400: hsl(0, 0%, 100%);
    --cl-db-400: hsl(236, 21%, 26%);
    --cl-db-500: hsl(235, 16%, 14%);
    --cl-db-700: hsl(234, 17%, 12%);

    --fs-lg: 2.125rem;
    --fs-md: 0.875rem;
    --fs-sm: 0.625rem;

    --mb-lg: 4em;
    --mb-md: 2em;
    --mb-sm: 1em;

    --bg-stars: url("../img/bg-stars.svg");
    --bg-hills: url("../img/pattern-hills.svg");
}

body {
    font-size: var(--fs-md);
    font-family: "Red Hat Text", sans-serif;
}

img {
    display: block;
    max-width: 100%;
}

/*  */
.launch__page {
    min-height: 100vh;
    background-color: var(--cl-db-700);
    background-image:  
    var(--bg-hills), 
    var(--bg-stars),
    linear-gradient(
        rgb(30, 30, 41) 20%,
        rgb(32, 30, 40) 20% 40%,
        rgb(33, 29, 42) 40% 60%,
        rgb(35, 29, 42) 60% 80%
    );
    background-repeat: no-repeat;
    background-position: right bottom, top center, center;
    background-size: auto;
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    padding: 8em 0 4em;
}

.launch__lead {
    text-align: center;
    color: var(--cl-wh-400);
    letter-spacing: 6px;
    text-transform: uppercase;
    width: max-content;
    max-width: 400px;
    margin: 0 auto;
    margin-bottom: var(--mb-lg);
}

.launch__list {
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 95%;
    max-width: 600px;
    margin: 0 auto;
}

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

.launch__card {
    --rad: 5px;
    color: var(--cl-sr-400);
    width: 70px;
    aspect-ratio: 1;
    position: relative;
    perspective: 200px;
    font-size: var(--fs-lg);
    font-weight: 700;
    line-height: 0;
    user-select: none;
    filter: drop-shadow(0 5px 0 var(--cl-db-700));
}

.launch__tile {
    height: 50%;
    display: flex;
    justify-content: center;
    background-color: var(--cl-db-400);
    overflow: hidden;
    position: relative;
}

.launch__tile--head {
    align-items: end;
    border-top-left-radius: var(--rad);
    border-top-right-radius: var(--rad);
}

.launch__tile--base {
    align-items: start;
    border-bottom-left-radius: var(--rad);
    border-bottom-right-radius: var(--rad);
}

.launch__flip {
    width: 100%;
    height: 50%;
    position: absolute;
    top: 0;
    left: 0;
    transform-style: preserve-3d;
    transform-origin: left bottom;
}

.ease
.launch__flip {
    animation: flip 950ms ease;
}

.launch__face {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    backface-visibility: hidden;
    display: flex;
    justify-content: center;
    overflow: hidden;
    background-color: var(--cl-db-400);
}

.launch__face--fore {
    align-items: end;
    border-top-left-radius: var(--rad);
    border-top-right-radius: var(--rad);
}

.launch__face--back {
    align-items: start;
    border-bottom-left-radius: var(--rad);
    border-bottom-right-radius: var(--rad);
    transform: rotateX(-180deg);
}

.launch__tile--head,
.launch__face--fore {
    filter: brightness(0.8);
}

.launch__tile--head::before,
.launch__tile--head::after,
.launch__face--back::before,
.launch__face--back::after,
.launch__tile--base::before,
.launch__tile--base::after,
.launch__face--fore::before,
.launch__face--fore::after {
    --size: 4px;
    content: "";
    position: absolute;
    width: var(--size);
    height: var(--size);
    background-color: var(--cl-db-500);
}

.launch__tile--head::before,
.launch__face--back::before,
.launch__tile--base::before,
.launch__face--fore::before {
    left: 0;
}

.launch__tile--head::after,
.launch__face--back::after,
.launch__tile--base::after,
.launch__face--fore::after {
    right: 0;
}

.launch__tile--head::before,
.launch__face--fore::before {
    border-top-right-radius: var(--size);
}

.launch__tile--base::before,
.launch__face--back::before {
    border-bottom-right-radius: var(--size);
}

.launch__tile--head::after,
.launch__face--fore::after {
    border-top-left-radius: var(--size);
}

.launch__tile--base::after,
.launch__face--back::after {
    border-bottom-left-radius: var(--size);
}

.launch__text {
    text-align: center;
    text-transform: uppercase;
    color: var(--cl-gb-400);
    margin-top: 1em;
    letter-spacing: 2px;
    font-size: var(--fs-sm);
    font-weight: 700;
}

.launch__tags {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10em;
}

.launch__link {
    margin: 0 var(--mb-sm);
}

.launch__link:hover {
    --hover: brightness(0) saturate(100%) invert(56%) sepia(15%) saturate(7083%) hue-rotate(310deg) brightness(101%) contrast(97%);
    filter: var(--hover);
}

/*  */
@keyframes flip {
    0% {
        transform: rotateX(0deg);
    } 100% {
        transform: rotateX(-180deg);
    }
}

/*  */
@media (max-width: 24em) {
    .launch__lead {
        max-width: 300px;
        margin-bottom: var(--mb-md);
    }
    
    .launch__card {
        width: 60px;
        font-size: 1.625rem;
    }
}

@media (min-width: 36em) {
    .launch__card {
        width: 100px;
        font-size: 3rem;
    }
}