:root {
    --color-black: #313131;
    --color-white: #fff;
    --color-red: tomato;
    --color-blue: #3498db;
    --light-bg: #fafafa;
    --dark-bg: #1a1c34;
    --font-family-monospace: 'Ubuntu Mono', monospace;
    --breakpoint-sm: 768px;
    --breakpoint-md: 992px;
    --breakpoint-lg: 1200px;
    --transition-func: all .3s ease-in-out;
}

.light-theme {
    --site-color: var(--color-black);
    --site-bg: var(--light-bg);
}

.dark-theme {
    --site-color: var(--color-white);
    --site-bg: var(--dark-bg);
}

@font-face {
    font-family: 'Ubuntu Mono';
    font-style: normal;
    font-weight: 400;
    src: local('Ubuntu Mono'), local('UbuntuMono-Regular'),
    url('../fonts/ubuntu-mono-v9-latin_cyrillic-regular.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
    url('../fonts/ubuntu-mono-v9-latin_cyrillic-regular.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}

@font-face {
    font-family: 'Ubuntu Mono';
    font-style: normal;
    font-weight: 700;
    src: local('Ubuntu Mono Bold'), local('UbuntuMono-Bold'),
    url('../fonts/ubuntu-mono-v9-latin_cyrillic-700.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
    url('../fonts/ubuntu-mono-v9-latin_cyrillic-700.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}

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

*::before,
*::after {
    box-sizing: inherit;
}

html {
    font-size: 14px;
    font-family: sans-serif;
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
}

@media (min-width: 768px) {
    html {
        font-size: 15px;
    }
}

@media (min-width: 992px) {
    html {
        font-size: 16px;
    }
}

body {
    font-family: var(--font-family-monospace);
    font-size: 1rem;
    line-height: 1.35;
    color: var(--site-color);
    background-color: var(--site-bg);
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    color: inherit;
}

svg {
    vertical-align: middle;
}

h1, h2, h3, h4, h5, h6, p {
    margin-bottom: .5rem;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 10px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .5rem 0;
    border-bottom: 1px solid rgba(229, 229, 229, 0.6);
}

.logo,
.header__actions {
    flex: 0 0 50px;
    max-width: 50px;
}

.eye-left,
.brow-left,
.brow-right {
    transition: var(--transition-func);
}

.logo:hover .brow-left {
    transform: translateY(-12px);
}

.logo:hover .brow-right {
    transform: translateY(12px);
}

.logo--mobile {
    display: block;
    width: 120px;
    margin: 48px auto 12px;
}

.logo--mobile svg {
    max-width: 120px;
}

.nav ul {
    list-style: none;
}

.nav li {
    padding: 0 10px;
    text-transform: uppercase;
}

.nav a {
    letter-spacing: 1px;
    opacity: .55;
    transition: var(--transition-func);
}

.nav a:hover,
.nav a:focus,
.nav a.active {
    opacity: 1;
}

.nav--mobile {
    font-size: 2rem;
}

.nav--mobile li {
    margin-bottom: 1rem;
}

.nav--desktop {
    flex-grow: 1;
    font-size: 1.15rem;
}

.nav--desktop ul {
    display: flex;
    justify-content: center;
    margin: 0 -10px;
}

.logo--desktop,
.nav--desktop {
    display: none;
}

@media (min-width: 768px) {
    .logo--mobile,
    .nav--mobile {
        display: none;
    }

    .logo--desktop,
    .nav--desktop {
        display: block;
    }
}

.theme-changer {
    position: relative;
    width: 50px;
    height: 24px;
    border-radius: 24px;
    background-color: #0f1114;
    transition: var(--transition-func);
    cursor: pointer;
}

.theme-changer__dot {
    position: absolute;
    z-index: 5;
    left: 0;
    top: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: #fff;
    box-shadow: 0 0 0 2px #ccc;
    animation: moveDotToLeft .4s forwards;
}

.theme-changer__light,
.theme-changer__dark {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.theme-changer__light {
    right: 5px;
}

.theme-changer__dark {
    left: 5px;
}

@keyframes moveDotToLeft {
    from {left: 25px;}
    to {left: 0;}
}

@keyframes moveDotToRight {
    from {left: 0;}
    to {left: 25px;}
}

.theme-changer.is-checked .theme-changer__dot {
    animation: moveDotToRight .4s forwards;
}

.main {
    min-height: calc(100vh - 100px);
    padding: 1.3rem 0;
}

.footer {
    padding: .5rem 0;
    border-top: 1px solid rgba(226, 226, 226, 0.6);
}

.footer__copyright {
    text-align: center;
    font-size: .85rem;
}

.content p {
    font-size: 1.15rem;
}

.content a {
    color: var(--color-blue);
}

.contact-me {

}

.contact-me__block {

}

.contact-me__description {
    font-size: 1.3rem;
}

.contact-me__line {
    display: flex;
    align-items: center;
    padding: .15rem 0;
    font-size: 1.15rem;
}

.contact-me__subtitle {
    flex: 0 0 90px;
    max-width: 90px;
}

.contact-me__value a {
    color: var(--color-blue);
}

.menu-btn {
    position: relative;
    z-index: 15;
    width: 32px;
    height: 32px;
    padding: 2px;
    border: 0;
    background-color: transparent;
}

.menu-btn span {
    display: block;
    width: 28px;
    height: 2px;
    margin: 0 auto;
    background-color: var(--site-color);
    transition: var(--transition-func);
}

.menu-btn span:nth-child(2) {
    margin: 5px 0;
}

.menu-btn.is-open span:nth-child(2) {
    margin: 3px 0;
}

@media (min-width: 768px) {
    .menu-btn {
        display: none;
    }
}

.mobile-menu {
    position: fixed;
    z-index: 10;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--site-bg);
    transform: translateX(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-func);
}

.mobile-menu.is-open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
}