style.css

:root {
    --theme-product: rgba(106, 183, 138, 1);
    --theme-accent: rgba(106, 183, 138, 0.2);
    --theme-surface: rgba(255, 255, 255, 1);
    --theme-overflow: rgba(255, 255, 255, 0);
    --theme-title: #404040;
    --theme-subtitle: #757575;
    --theme-seperation: rgba(235, 235, 235, 1);
    --theme-background: rgba(240, 240, 240, 1);
    --theme-flat-overflow: rgba(240, 240, 240, 0);
    --theme-elevated-background: rgba(252, 252, 252, 1);
    --theme-elevated-shadow: 0 1px 8px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(250, 250, 250, 1);
    --theme-elevated-overflow: rgba(252, 252, 252, 0);
}

@media (prefers-color-scheme: dark) {
    :root {
        --theme-product: rgba(106, 183, 138, 1);
        --theme-accent: rgba(106, 183, 138, 0.2);
        --theme-surface: rgba(24, 24, 24, 1);
        --theme-overflow: rgba(24, 24, 24, 0);
        --theme-title: #E0E0E0;
        --theme-subtitle: #757575;
        --theme-seperation: rgba(40, 40, 40, 1);
        --theme-background: rgba(32, 32, 32, 1);
        --theme-flat-overflow: rgba(32, 32, 32, 0);
        --theme-elevated-background: rgba(28, 28, 28, 1);
        --theme-elevated-shadow: 0 1px 8px rgba(0, 0, 0, 0.24), 0 0 0 1px rgba(20, 20, 20, 1);
        --theme-elevated-overflow: rgba(28, 28, 28, 0);
    }
}

* {
    padding: 0;
    margin: 0;
    font-family: inherit;
    text-decoration: none;
    background: transparent;
    border: none;
    outline: none;
    box-sizing: content-box;
}

::-webkit-scrollbar {
    display: none;
}

input::selection {
    color: var(--theme-surface);
    background: var(--theme-title);
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

body {
    background: var(--theme-surface);
    overflow-x: hidden;
    overflow-y: scroll;
    cursor: default;
    font-family: "Roboto", "BlinkMacSystemFont", "Arial", sans-serif;
    -webkit-overflow-scrolling: touch;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

#branding {
    position: relative;
    float: left;
    height: 40px;
    width: 200px;
    margin: 40px calc(50% - 100px) 24px calc(50% - 100px);
    fill: var(--theme-title);
}

#examples {
    position: relative;
    float: left;
    height: 88px;
    width: 1080px;
    margin: 0 calc(50% - 540px);
}

#examples_items {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    padding: 12px;
    font-size: 0;
    white-space: nowrap;
    overflow-x: scroll;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
}

#examples_left {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 120px;
    background: linear-gradient(90deg, var(--theme-surface), var(--theme-overflow));
    opacity: 0;
    pointer-events: none;
}

#examples_right {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 120px;
    background: linear-gradient(-90deg, var(--theme-surface), var(--theme-overflow));
    opacity: 1;
    pointer-events: none;
}

.examples_item {
    position: relative;
    display: inline-block;
    height: 56px;
    width: 56px;
    margin: 4px;
    border-radius: 12px;
    box-shadow: var(--theme-elevated-shadow);
    white-space: normal;
    cursor: pointer;
    transform: perspective(0);
}

.examples_item.active {
    width: 0;
    margin: 0;
    opacity: 0;
    transition: opacity 200ms, width 200ms 200ms, margin 200ms 200ms;
}

.examples_layer {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    border-radius: inherit;
    overflow: hidden;
    transition: opacity 200ms;
}

.examples_image {
    position: absolute;
    top: -14px;
    left: -14px;
    height: 84px;
    width: 84px;
    pointer-events: none;
}

.examples_remove {
    position: absolute;
    bottom: -10px;
    left: calc(50% - 10px);
    height: 20px;
    width: 20px;
    fill: #FFCDD2;
    background: #F44336;
    border-radius: 12px;
    box-shadow: var(--theme-elevated-shadow);
}

#originator {
    position: relative;
    float: left;
    height: 32px;
    width: 320px;
    margin: 16px calc(50% - 160px) 40px calc(50% - 160px);
    background: var(--theme-background);
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    transition: opacity 200ms;
    display: none;
}

#originator_image {
    position: absolute;
    top: 4px;
    left: 6px;
    height: 24px;
    width: 24px;
    border-radius: 50%;
    pointer-events: none;
}

#originator_title {
    position: absolute;
    top: 8px;
    right: 8px;
    left: 40px;
    height: 20px;
    color: var(--theme-title);
    font-size: 14px;
    font-weight: 500;
    line-height: 16px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

#originator_fade {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 80px;
    background: linear-gradient(-80deg, var(--theme-background), var(--theme-background), var(--theme-flat-overflow));
}

#originator_twitter {
    position: absolute;
    top: 6px;
    right: 12px;
    height: 20px;
    width: 20px;
    fill: #757575;
}

#preview {
    position: relative;
    float: left;
    height: 384px;
    width: 384px;
    margin: 40px 80px 40px calc(50% - 480px);
    box-shadow: 0 0 0 1px var(--theme-seperation);
    border-radius: 12px;
}

#preview_content {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    border-radius: inherit;
    overflow: hidden;
}

#preview_background,
#preview_foreground {
    position: absolute;
    top: calc(50% - 144px);
    left: calc(50% - 144px);
    height: 288px;
    width: 288px;
    object-fit: cover;
}

#preview_custom {
    position: absolute;
    top: calc(50% - 96px);
    left: calc(50% - 96px);
    height: 192px;
    width: 192px;
    background: transparent;
    box-shadow: 0 0 0 192px var(--theme-surface);
    transition: border-radius 200ms;
    display: none;
}

#preview_masking {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

#preview_google,
#preview_apple,
#preview_microsoft,
#preview_samsung {
    position: absolute;
    top: calc(50% - 288px);
    left: calc(50% - 288px);
    height: 576px;
    width: 576px;
    fill: var(--theme-surface);
    display: none;
}

#preview_ruler {
    position: absolute;
    top: calc(50% - 192px);
    left: calc(50% - 192px);
    height: 384px;
    width: 384px;
    fill: var(--theme-seperation);
    opacity: 0;
}

#preview_moving {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    border-radius: inherit;
    cursor: crosshair;
}

.preview_corner {
    position: absolute;
    height: 40px;
    width: 40px;
    padding: 0;
    margin: 0;
    color: var(--theme-title);
    font-size: 14px;
    font-weight: 500;
    line-height: 38px;
    text-align: center;
    background: var(--theme-surface);
    box-shadow: 0 0 0 1px var(--theme-seperation);
    border-radius: 50%;
    display: none;
}

#preview_top {
    top: -20px;
    left: -20px;
}

#preview_right {
    top: -20px;
    right: -20px;
}

#preview_bottom {
    right: -20px;
    bottom: -20px;
}

#preview_left {
    bottom: -20px;
    left: -20px;
}

#options {
    position: relative;
    float: left;
    height: auto;
    width: 480px;
    margin: 24px calc(50% - 480px) 24px 0;
}

.options_heading {
    position: relative;
    float: left;
    height: auto;
    width: calc(100% - 24px);
    padding: 16px 12px 12px 12px;
    color: var(--theme-title);
    font-size: 14px;
    font-weight: 500;
    line-height: 16px;
}

#options_background_input,
#options_foreground_input {
    position: relative;
    float: left;
    height: 16px;
    width: calc(100% - 104px);
    margin: 8px;
    padding: 12px 16px;
    color: var(--theme-title);
    font-size: 14px;
    font-weight: 500;
    line-height: 16px;
    background: var(--theme-background);
    border-radius: 12px;
}

.options_button {
    position: relative;
    float: left;
    height: 40px;
    width: 40px;
    margin: 8px;
    fill: var(--theme-subtitle);
    background: var(--theme-background);
    border-radius: 12px;
    cursor: pointer;
}

.options_button.active {
    background: var(--theme-accent);
    fill: var(--theme-product);
}

#options_background_spinner,
#options_foreground_spinner {
    position: relative;
    float: left;
    height: 40px;
    width: 40px;
    margin: 8px;
    fill: var(--theme-subtitle);
    animation: spinner 1000ms linear infinite;
    display: none;
}

@keyframes spinner {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

#description {
    position: relative;
    float: left;
    height: auto;
    width: 720px;
    margin: 160px calc(50% - 360px) 40px calc(50% - 360px);
    color: var(--theme-title);
    font-size: 14px;
    font-weight: 500;
    line-height: 20px;
    text-align: center;
}

#description_about {
   font-size: 16px;
}

#description_sketch {
    color: #F3AF3D;
    cursor: pointer;
    transition: opacity 200ms;
}

#description_figma {
    color: #9663F6;
    cursor: pointer;
    transition: opacity 200ms;
}

#resources {
    position: relative;
    float: left;
    height: auto;
    width: 1168px;
    padding: 16px;
    margin: 0 calc(50% - 600px);
}

.resources_article {
    position: relative;
    float: left;
    height: 72px;
    height: 208px;
    width: calc(100% / 4 - 32px);
    padding: 0;
    margin: 16px;
    color: #FFF;
    background: var(--theme-elevated-background);
    border-radius: 16px;
    box-shadow: var(--theme-elevated-shadow);
    transition: opacity 200ms;
}

.resources_headline {
    position: absolute;
    top: 24px;
    right: 24px;
    left: 24px;
    height: 20px;
    color: var(--theme-title);
    font-size: 14px;
    font-weight: 500;
    line-height: 20px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.resources_description {
    position: absolute;
    top: 64px;
    right: 24px;
    bottom: 64px;
    left: 24px;
    color: var(--theme-title);
    font-size: 12px;
    font-weight: 500;
    line-height: 20px;
    overflow: hidden;
}

.resources_reference {
    position: absolute;
    right: 24px;
    bottom: 24px;
    left: 24px;
    height: 20px;
    color: var(--theme-subtitle);
    font-size: 14px;
    font-weight: 500;
    line-height: 20px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.resources_overflow {
    position: absolute;
    right: 24px;
    bottom: 64px;
    left: 24px;
    height: 20px;
    background: linear-gradient(-80deg, var(--theme-elevated-background), var(--theme-elevated-overflow));
}

#author {
    position: relative;
    float: left;
    height: 40px;
    width: 240px;
    margin: 64px calc(50% - 120px) 0 calc(50% - 120px);
    color: var(--theme-title);
    font-size: 14px;
    font-weight: 500;
    line-height: 40px;
    text-align: center;
    cursor: pointer;
    transition: opacity 200ms;
}

#twitter {
    position: relative;
    float: left;
    height: 40px;
    width: 40px;
    margin: 0 calc(50% - 20px) 80px calc(50% - 20px);
    cursor: pointer;
    transition: opacity 200ms;
}

#twitter_icon {
    position: absolute;
    top: 8px;
    left: 8px;
    height: 24px;
    width: 24px;
    fill: var(--theme-title);
}

#drop {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.9);
    overflow: hidden;
    pointer-events: none;
    display: none;
}

#drop_seperation {
    position: absolute;
    top: calc(50% - 1px);
    right: 40px;
    left: 40px;
    height: 2px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 1px;
}

#drop_background {
    position: absolute;
    top: 25%;
    right: 40px;
    left: 40px;
    height: 20px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    font-weight: 500;
    line-height: 20px;
    text-align: center;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    pointer-events: none;
}

#drop_foreground {
    position: absolute;
    bottom: 25%;
    right: 40px;
    left: 40px;
    height: 20px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    font-weight: 500;
    line-height: 20px;
    text-align: center;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    pointer-events: none;
}

.examples_layer:hover,
.examples_item:active,
.examples_item:focus,
a:hover,
a:active,
a:focus {
    opacity: 0.5;
}

@media (max-width: 1200px) {
    #examples {
        width: 800px;
        margin-right: calc(50% - 400px);
        margin-left: calc(50% - 400px);
    }
    #resources {
        width: 768px;
        margin: 0 calc(50% - 400px);
    }
    .resources_article {
        height: 188px;
        width: calc(50% - 32px);
    }
}

@media (max-width: 1000px) {
    #preview {
        margin: 24px calc(50% - 192px) 24px calc(50% - 192px);
    }
    #options {
        width: 560px;
        margin-right: calc(50% - 280px);
        margin-left: calc(50% - 280px);
    }
}

@media (max-width: 800px) {
    #examples {
        width: 640px;
        margin-right: calc(50% - 320px);
        margin-left: calc(50% - 320px);
    }
    #description {
        width: 540px;
        margin: 24px calc(50% - 270px);
    }
    #resources {
        width: 568px;
        margin: 0 calc(50% - 300px);
    }
    .resources_article {
        height: 168px;
        width: calc(100% - 32px);
    }
}

@media (max-width: 600px) {
    #branding {
        height: 32px;
        width: 160px;
        margin-right: calc(50% - 80px);
        margin-left: calc(50% - 80px);
    }
    #examples {
        width: 100%;
        margin-right: 0;
        margin-left: 0;
    }
    #options {
        width: calc(100% - 24px);
        margin-right: 12px;
        margin-left: 12px;
    }
    #description {
        width: calc(100% - 48px);
        margin-right: 24px;
        margin-left: 24px;
        text-align: left;
    }
    #resources {
        width: calc(100% - 16px);
        padding: 8px;
        margin: 0;
    }
    .resources_article {
        height: 168px;
        width: calc(100% - 16px);
        margin: 8px;
    }
}

@media (max-width: 440px) {
    #preview {
        height: 288px;
        width: 288px;
        margin: 0 calc(50% - 144px);
        overflow: hidden;
    }
    .preview_corner {
        background: transparent;
        border-radius: 0;
        box-shadow: none;
    }
    #preview_top {
        top: 3.5px;
        left: 3.5px;
    }
    #preview_right {
        top: 3.5px;
        right: 3.5px;
    }
    #preview_bottom {
        right: 3.5px;
        bottom: 3.5px;
    }
    #preview_left {
        bottom: 3.5px;
        left: 3.5px;
    }
    #options {
        width: calc(100% - 16px);
        margin-right: 8px;
        margin-left: 8px;
    }
}