welcome.css

/**
 * Sections
 */

body {
    background-color: #edf2e1;
    font-family: 'Noto Sans', Arial, sans-serif;
    font-size: 14px;
    margin: 0 auto;
    max-width: 982px;
    min-width: 256px;
    padding: 33px 18px;
}

#wrapper {
    display: grid;
}

header {
    align-items: center;
    display: flex;
    gap: 15px;
    grid-row: 1;
    justify-content: center;
    margin-bottom: 15px;
    margin-top: 15px;
}

.content {
    display: flex;
    flex-direction: column;
    gap: 45px;
    grid-row: 2;
    margin-top: 15px;
    padding: 20px;
}

.content .item:nth-child(odd) {
    align-self: flex-start;
}

.content .item:nth-child(even) {
    align-self: flex-end;
}

footer {
    display: flex;
    gap: 20px;
    grid-row: 3;
    justify-content: flex-end;
    margin: 30px 0 15px;
    padding: 10px;
    text-align: center;
}

/**
 * Fonts
 */

@font-face {
    font-family: 'Noto Sans';
    font-style: normal;
    font-weight: 400;
    src: url('../shared/resources/fonts/noto-sans/regular.woff2')
         format('woff2');
}

@font-face {
    font-family: 'Noto Sans';
    font-style: normal;
    font-weight: 600;
    src: url('../shared/resources/fonts/noto-sans/bold.woff2')
         format('woff2');
}

@font-face {
    font-family: 'Noto Sans';
    font-style: italic;
    font-weight: 400;
    src: url('../shared/resources/fonts/noto-sans/italic.woff2')
         format('woff2');
}

/**
 * Headings
 */

.heading {
    align-items: flex-start;
    color: #575757;
    display: flex;
    flex-direction: column;
    font-size: 30px;
    font-style: italic;
    gap: 3px;
    padding: 5px 0;
}

/**
 * Titles
 */

.title-item {
    color: #2d2f27;
    font-size: 18px;
    font-style: italic;
    font-weight: bold;
    padding: 3px 0;
}

/**
 * Items
 */

.item {
    background: linear-gradient(145deg, #fefefe, #edf2e1);
    border-radius: 24px;
    box-shadow: -5px -5px #dce2cd inset;
    color: #2d2f27;
    padding: 20px 35px;
    text-align: left;
    width: 75%;
}

.header-item {
    align-items: center;
    display: flex;
    gap: 15px;
}

.body-item {
    font-size: 16px;
}

/**
 * Icons
 */

.wrapper-icon {
    align-items: center;
    display: flex;
    height: 112px;
    justify-content: center;
    position: relative;
    width: 112px;
}

.icon {
    margin-left: 5px;
    margin-top: 5px;
    max-height: calc(100% - 10px);
    max-width: calc(100% - 10px);
    min-height: calc(100% - 10px);
    min-width: calc(100% - 10px);
}

.icon-item {
    background: #141415;
    border-radius: 50px;
    box-shadow: -3px -3px rgba(0, 0, 0, .2) inset;
    color: #fefefe;
    display: flex;
    padding: 7px 14px;
}

.icon-item-gray {
    background: linear-gradient(145deg, #3f5469, #304050);
}

.icon-item-green {
    background: linear-gradient(145deg, #00bd7f, #00885e);
}

.icon-item svg {
    rotate: 22.5deg;
}

/**
 * Buttons
 */

.button {
    align-items: center;
    background: rgba(255, 255, 255, 0.75);
    border-radius: 15px;
    border: 2px solid #b6bfa2;
    box-shadow: -3px -3px rgba(0, 0, 0, .1) inset;
    color: #2d2f27;
    display: flex;
    flex-wrap: wrap;
    font-weight: bold;
    gap: 10px;
    justify-content: center;
    overflow: hidden;
    padding: 15px 23px;
    text-decoration: none;
    user-select: none;
}

.button:hover {
    border: 2px solid transparent;
    color: #fefefe;
    cursor: pointer;
    opacity: 1;
}

.button-website:hover {
    background: linear-gradient(145deg, #007bbd, #005e8f) padding-box;
}

.button-gitlab:hover {
    background: linear-gradient(145deg, #3f5469, #304050) padding-box;
}

.button-donate:hover {
    background: linear-gradient(145deg, #f58700, #c36c00) padding-box;
}

.button-author:hover {
    background: linear-gradient(145deg, #00bd7f, #00885e) padding-box;
}

.button:active {
    background: transparent !important;
    border: 2px solid #b6bfa2;
    box-shadow: 3px 3px rgba(0, 0, 0, .2) inset;
    color: #121212;
    opacity: .5;
}

/**
 * Miscellaneous
 */

.accent-icon {
    border-radius: 500px;
    height: 100%;
    max-height: 112px;
    max-width: 112px;
    overflow: hidden;
    position: absolute;
    width: 100%;
    z-index: 0;
}

.accent-icon:before {
    background-image: conic-gradient(rgba(0, 0, 0, 0), #69aa8f, rgba(0, 0, 0, 0) 25%);
    background-position: 0 0;
    background-repeat: no-repeat;
    content: '';
    height: 100000px;
    left: 50%;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%) rotate(0deg);
    width: 100000px;
    z-index: -2;
}

.accent-icon:after {
    background-color: #edf2e1;
    background-size: 100%;
    border-radius: 500px;
    content: '';
    left: 5px;
    min-height: calc(100% - 10px);
    min-width: calc(100% - 10px);
    position: absolute;
    top: 5px;
    z-index: -1;
}

.logotype {
    display: flex;
    width: 250px;
}

.label-version {
    align-items: center;
    background: linear-gradient(135deg, #2f5948, #4a856d);
    color: #fefefe;
    display: flex;
    font-size: 20px;
    height: 34px;
    justify-content: center;
    opacity: 0;
    text-shadow: 2px 2px #27483a;
    width: 60px;
}

/**
 * Keyframes
 */

@keyframes appear {

    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes appear-and-skew {

    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
        transform: skew(-12deg, 0);
    }
}

@keyframes appear-and-turn {

    0% {
        opacity: 0;
        rotate: 12deg;
    }

    70% {
        rotate: 0deg;
    }

    100% {
        opacity: 1;
    }
}

@keyframes disappear {

    0% {
        display: flex;
        opacity: 1;
    }

    100% {
        display: none;
        opacity: 0;
    }
}

@keyframes rotate {

    100% {
        transform: translate(-50%, -50%) rotate(1turn);
    }
}

/**
 * Animations
 */

#icon.animated {
    animation: appear-and-turn 1s 1s both;
}

#logotype.animated {
    animation: appear 1s 1.5s both;
}

#version-label.animated {
    animation: appear-and-skew 2s 2s both;
}

#first-item.animated {
    animation: appear 1s 3.25s both;
}

#second-item.animated {
    animation: appear 1s 3.5s both;
}

#footer.animated {
    animation: appear 1s 4s both;
}

#icon-accent.animated:before {
    animation: rotate 1.25s linear infinite, disappear 2.25s .25s both;
}

/**
 * Compatibility
 */

@media (prefers-color-scheme: dark) {

    body {
        background-color: #1d1e22;
    }

    .title-item {
        color: #fefefe;
    }

    .item {
        background: #121212 linear-gradient(145deg, #1d1e22, #101010);
        box-shadow: -5px -5px rgba(0, 0, 0, .1) inset;
        color: #dcdcdc;
    }

    .button {
        background: transparent;
        border: 2px solid #0f0f12;
        box-shadow: -3px -3px rgba(0, 0, 0, .2) inset;
        color: #fefefe;
    }

    .button:hover {
        border: 2px solid #0f0f12;
    }

    .button:active {
        border: 2px solid #0f0f12;
        box-shadow: 3px 3px rgba(0, 0, 0, .2) inset;
        color: #fefefe;
        opacity: .5;
    }

    .accent-icon:after {
        background-color: #2a2c32;
    }

    .logotype {
        filter: brightness(1%) invert(100%);
    }
}

@media screen and (max-width: 700px) {

    body {
        padding: 33px 11px;
    }

    header {
        flex-direction: column;
        gap: 10px;
    }

    .content {
        gap: 40px;
        padding: 15px 10px;
    }

    .content .item:nth-child(odd) {
        align-self: unset;
    }

    .content .item:nth-child(even) {
        align-self: unset;
    }

    footer {
        flex-direction: column;
        gap: 15px;
        margin-bottom: 10px;
    }

    .heading {
        align-items: center;
        gap: 5px;
    }

    .item {
        width: auto;
    }
}