:root {
    --darkGreen: #264653;
    --green: #2a9d8f;
    --yellow: #e9c46a;
    --orange: #f4a261;
    --darkOrange: #e76f51;
}

body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: var(--yellow);
}

#screen {
    background: linear-gradient(0deg, var(--darkGreen) 1%, var(--green));
    width: 100%;
    height: 100%;
    position: fixed;
    left: 0;
    top: 0;
    z-index: -100;
}

#all {
    display: flex;
    flex-flow: column nowrap;
    align-items: stretch;
    max-width: 1920px;
    margin: auto;
    min-width: 1480px;
}

#page {
    display: flex;
    flex-wrap: nowrap;
    align-items: stretch;
    min-height: 650px;
}

nav, aside {
    flex-grow: 1;
    min-width: 200px;
    max-width: 300px;
}

main {
    flex-grow: 4;
    background-color: white;
    backdrop-filter: blur(3px);
    background-color: rgba(253, 253, 253, 0.8);
    min-width: 1080px;
    max-width: 1220px;
    border-radius: 10px;
    padding: 10px;
}

.tile {
    margin: 20px 0 5px 0;    
    height: 250px;
    min-width: 90%;    
}

.fullImg {
    position: fixed;
    z-index: 100;
    height: 100%;
    width: 100%;
    background: rgba(32, 32, 32, 0.8);
}

.fullImg > img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 80%;
    max-height: 90%;
}

main > p, main > h1, main > h3, main > h4 {
    margin: 50px 0;    
}

main > h1, main > h3, main > h4, .tile {
    text-align: center;
}

main > p {
    font-size: 15pt;
}

main > h3 {
    font-size: 17pt;
}

main > h4 {
    font-size: 16pt;
}

.main, .example, .tile {
    border: 3px solid rgb(72, 71, 71);
    border-radius: 10px;
    box-shadow: 5px 5px 10px rgb(43, 42, 42);
}

.main {
    display: block;
    max-width: 1000px;
    margin: 5px auto 5px;
    
}

.example {
    width: 450px;
    height: 350px;
    margin: 5px 10px;
    float: right;
}

header {
    transition: background-position-y 1s;
    height: 180px;
    min-width: 750px;
    margin: 5px auto;
    border: solid 2px var(--orange);
    border-radius: 10px;
    background: linear-gradient(0deg, var(--orange) 0%, var(--darkOrange) 50%, var(--orange) 100%);
    background-size: 270px;
}

header:hover {
    background-position-y: 135px;
}

.logo {
    position: relative;
    width: 130px;
    height: 130px;
    top: 5px;
    left: -15px;
    background-color: var(--yellow);
    border: 4px solid var(--darkOrange);
    border-radius: 130px;
}

.logo > h1, .zag {
    position: relative;
    left: -30px;
    top: 30px;
    width: 100px;
    font-size: 35pt;
    color: var(--darkGreen);
    text-shadow: var(--darkOrange) 1px 0px, var(--darkOrange) 0px 1px, var(--darkOrange) 0px -1px, var(--darkOrange) -1px 0px;
}

.zag {
    color: var(--yellow);
    text-shadow: var(--darkGreen) 2px 0px, var(--darkGreen) 0px 2px;
    top: 50%;
    margin: auto;
    font-size: 40pt;
}

header > h3 {
    position: relative;
    width: 307px;    
    margin: -5px auto 5px;
    background-color: var(--yellow);
    border: 1px solid var(--darkOrange);
    border-radius: 15px;
    color: var(--darkGreen);
    text-shadow: var(--darkOrange) 1px 0px, var(--darkOrange) 0px 1px, var(--darkOrange) 0px -1px, var(--darkOrange) -1px 0px;
}

header > h3, #subMenu, .mainMenu > li, #mainMenu, .myGit > a, .footLogo > a,.subPoint {
    background-color: var(--yellow);
    border: 1px solid var(--darkOrange);
    border-radius: 15px;
    padding: 10px;
}

aside, nav {
    padding-left: 40px;
}

#subMenu, #mainMenu{
    position:sticky;
    top:10px;
}

.subPoint > a {
    all: unset;
    display: block;
    min-width: 100%;
    min-height: 100%;
}

#subMenu ~ ul, .mainMenu {
    position: sticky;
    top:60px;
}

.mainMenu > li, .subPoint {    
    list-style-type: none;
    min-width: 100px;
    max-width: 150px;
    margin-top: 4px;
    padding: 10px;
}

.mm {
    display: block;
    width: 100%;
    height: 100%;
    margin: 0;
}

.mainMenu > li, .subPoint, .mm,.subPoint > a, .myGit > a,#subMenu, #mainMenu, .tile, .zag, .logo, .logo > h1 {
    cursor: pointer;
}

.hidden {
    visibility: hidden;
}

footer {
    display: flex;
    flex-flow: row nowrap;
    justify-content: space-around;
    align-items: center;
    width: 100%;
    height: 100px;
    background: linear-gradient(0deg, var(--darkOrange) 1%, var(--orange));
    margin-bottom: 0;
}

.myGit > a {
    display: block;
    margin: 10% auto auto 10%;
    width: 100%;
    height: 100%;
    font-size: 20pt;
    color: #333;
    background-color: #999;
    border: 4px solid #333;
    border-radius: 50px;
}

.date {
    font-size: 13pt;
}

/* Для браузеров Firefox */
@-moz-document url-prefix() {
    header > h3 {
        font-size: 12pt;
        width: 350px;
    }
    .myGit > a {
        font-size: 18pt;
    }   
}

.hov {
    animation: shake 1s ease;
}

@keyframes shake {
    30% {
        transform: scaleX(1.07) scaleY(1.05);
    }
    60% {
        transform: scaleX(1.05) scaleY(1.07);
    }
    70% {
        transform: scaleX(1.04) scaleY(1.02);
    }
    100% {
        transform: scaleX(1) scaleY(1);
    }
}