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Create carousel.css🔁
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for playbooks carousel animation
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innkeep authored Jul 9, 2024
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/*
vars
*/
:root {
--carousel-transition-duration: 250ms;
--carousel-transition-ease: ease-out;
--carousel-bg-color-rgb: 0, 0, 0;
--carousel-shadow-color-rgb: 128, 128, 128;
--carousel-item-width: 11.5rem;
--carousel-item-height: 17.5rem;
--carousel-item-hover-effect: 1.075;
--carousel-item-reflection-blur: 0.25rem;
--carousel-item-empty-color-rgb: 255, 255, 255;
--carousel-item-glow-color-rgb: 255, 255, 255;
--carousel-item-glow-size: 5rem;
--carousel-diameter: 50rem;
--carousel-3d-perspective: 1000px;
--carousel-3d-perspective-origin: 50% 20%;
--carousel-control-button-width: 1.25rem;
--carousel-control-button-height: 4rem;
--carousel-control-color-rgb: 255, 255, 255;
--carousel-animation-duration: 25s;
--carousel-animation-play-state: running;
--carousel-direction-animation-play-state: paused;
}

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

*:focus {
outline: none;
}

body {
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
background-color: rgb(var(--carousel-bg-color-rgb));
overflow: hidden;
}

/*
carousel
*/
.carousel {
--_diameter: var(--carousel-diameter);
--_radius: calc(var(--_diameter) / 2);
--_item-width: var(--carousel-item-width);
--_item-height: var(--carousel-item-height);
perspective: var(--carousel-3d-perspective);
perspective-origin: var(--carousel-3d-perspective-origin);
width: var(--_diameter);
height: var(--_diameter);

a {
-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
-webkit-tap-highlight-color: transparent;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;

display: grid;
align-items: baseline;
justify-content: center;
text-align: center;
padding-top: 2rem;
padding-inline: 0.5rem;
text-shadow: 2px 2px black;
font-size: 150%;
text-decoration: none;
color: aliceblue;
width: inherit;
height: inherit;
background-color: rgba(var(--carousel-item-empty-color-rgb), 0.5);
background-image: var(--_image-url);
background-repeat: no-repeat;
background-position: center;
background-size: cover;
transition: filter var(--carousel-transition-duration) var(--carousel-transition-ease);
filter: grayscale(100%);
}

.carousel-item:hover a {
filter: grayscale(0%);
}

.carousel-item::before {
content: '';
width: inherit;
height: inherit;
background-color: rgba(var(--carousel-item-empty-color-rgb), 0.5);
background-image:
linear-gradient(to top, rgba(var(--carousel-bg-color-rgb), 0.25) 0%, rgba(var(--carousel-bg-color-rgb), 1.0) 75%),
var(--_image-url);
background-repeat: no-repeat;
background-position: center;
background-size: cover;
pointer-events: none;
filter: blur(var(--carousel-item-reflection-blur)) grayscale(100%);
transition: filter var(--carousel-transition-duration) var(--carousel-transition-ease);
transform-style: inherit;
transform-origin: center bottom;
transform: rotateX(90deg) rotateZ(180deg) rotateY(180deg);
position: absolute;
}

.carousel-item:hover::before {
filter: blur(var(--carousel-item-reflection-blur)) grayscale(0%);
}

.carousel-ground {
--_width: var(--_diameter);
--_height: var(--_diameter);
--_rotation: 90deg;
left: calc(var(--_radius) - var(--_width) / 2);
top: calc(var(--_radius) - var(--_height) / 2);
transform: rotateX(var(--_rotation)) translateZ(calc(var(--_item-height) / -2));
width: var(--_width);
height: var(--_height);
border-radius: 50%;
background: radial-gradient(rgba(var(--carousel-shadow-color-rgb), 0.75) 15% , rgba(var(--carousel-bg-color-rgb), 0) 60%);
opacity: 0.5;
transition: opacity var(--carousel-transition-duration) var(--carousel-transition-ease);
position: absolute;
}

.carousel-item-wrapper:has(.carousel-item:hover) .carousel-ground {
opacity: 0.75;
}

.carousel-control-button {
--_width: var(--carousel-control-button-width);
--_height: var(--carousel-control-button-height);
z-index: 1;
width: var(--_width);
height: var(--_height);
background-color: rgb(var(--carousel-control-color-rgb));
opacity: 0.2;
transition: opacity var(--carousel-transition-duration) var(--carousel-transition-ease);
position: absolute;
}
}

@media only screen and (max-width: 48rem) {
.carousel {
--_diameter: calc(var(--carousel-diameter) * 0.75);
--_item-width: calc(var(--carousel-item-width) * 0.75);
--_item-height: calc(var(--carousel-item-height) * 0.75);
}
}

@media only screen and (max-width: 32rem) {
.carousel {
--_diameter: calc(var(--carousel-diameter) * 0.6);
--_item-width: calc(var(--carousel-item-width) * 0.6);
--_item-height: calc(var(--carousel-item-height) * 0.6);
}
}

@media only screen and (max-width: 16rem) {
.carousel {
--_diameter: calc(var(--carousel-diameter) * 0.25);
--_item-width: calc(var(--carousel-item-width) * 0.25);
--_item-height: calc(var(--carousel-item-height) * 0.25);
}
}

.carousel .carousel-control-button:hover {
opacity: 0.4;
}
.carousel .carousel-control-button:has(input:checked) {
opacity: 0.8;
}

.carousel .carousel-control-button input {
-webkit-appearance: none;
appearance: none;
opacity: 0;
width: 100%;
height: 100%;
cursor: pointer;
}

.carousel .carousel-control-button.left {
clip-path: polygon(0% 50%, 100% 0%, 100% 100%);
top: calc(var(--_radius) - var(--_height) / 2);
left: 0;
}
.carousel:has(.carousel-control-button.left input:checked) {
--carousel-direction-animation-play-state: running;
}

.carousel .carousel-control-button.right {
clip-path: polygon(0% 0%, 100% 50%, 0% 100%);
top: calc(var(--_radius) - var(--_height) / 2);
right: 0;
}
.carousel:has(.carousel-control-button.right input:checked) {
--carousel-direction-animation-play-state: paused;
}

.carousel .carousel-rotation-direction {
--_direction-animation-play-state: var(--carousel-direction-animation-play-state);
--_z: calc(var(--_radius) * -1);
transform: translateZ(var(--_z));
transform-style: preserve-3d;
animation: carousel-rotation-reverse calc(var(--carousel-animation-duration) / 2) reverse linear infinite var(--_direction-animation-play-state);
transition: all var(--carousel-transition-duration) var(--carousel-transition-ease);
}

@keyframes carousel-rotation-reverse {
from {transform: translateZ(var(--_z)) rotateY(0deg);}
to {transform: translateZ(var(--_z)) rotateY(360deg);}
}

@keyframes carousel-rotation-normal {
from {transform: rotateY(0deg);}
to {transform: rotateY(360deg);}
}

.carousel .carousel-item-wrapper {
transform-style: inherit;
width: inherit;
height: inherit;
list-style-type: none;
position: relative;
animation: carousel-rotation-normal var(--carousel-animation-duration) normal linear infinite var(--carousel-animation-play-state);
transition: all var(--carousel-transition-duration) var(--carousel-transition-ease);
}

.carousel .carousel-rotation-direction:has(.carousel-item:hover) {
--carousel-animation-play-state: paused;
--_direction-animation-play-state: paused;
}

.carousel .carousel-item {
--_width: var(--_item-width);
--_height: var(--_item-height);
--_rotation: calc(360 / var(--_num-elements) * var(--_index) * 1deg);
left: calc(var(--_radius) - var(--_item-width) / 2);
top: calc(var(--_radius) - var(--_item-height) / 2);
transform: rotateY(var(--_rotation)) translateZ(var(--_radius));
transform-style: inherit;
width: var(--_width);
height: var(--_height);
transition: all var(--carousel-transition-duration) var(--carousel-transition-ease);
box-shadow: 0 0 var(--carousel-item-glow-size) transparent;
position: absolute;
}

.carousel .carousel-item:hover {
box-shadow: 0 0 var(--carousel-item-glow-size) rgb(var(--carousel-item-glow-color-rgb));
transform: rotateY(var(--_rotation)) translateZ(calc(var(--_radius) * var(--carousel-item-hover-effect)));
}

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