/* All rights reserved. (c) 2019 */

/*= ToC:
    1. Global styles
    2. Section-specific CSS
        2.1. Intro
        2.2. About me
        2.3. Skills
        2.4. Projects
    3. Progressive styling
        3.1. JavaScript enabled
        3.2. RWD
*/

/*= 0. Fira Sans =*/

@font-face {
    font-display: swap;
    font-family: 'Fira Sans';
    src: url('https://code.cdn.mozilla.net/fonts/eot/FiraSans-Regular.eot');
    src: local('Fira Sans Regular'),
         url('https://code.cdn.mozilla.net/fonts/eot/FiraSans-Regular.eot') format('embedded-opentype'),
         url('https://code.cdn.mozilla.net/fonts/woff/FiraSans-Regular.woff') format('woff'),
         url('https://code.cdn.mozilla.net/fonts/ttf/FiraSans-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
}

@font-face {
    font-display: swap;
    font-family: 'Fira Sans';
    src: url('https://code.cdn.mozilla.net/fonts/eot/FiraSans-Bold.eot');
    src: local('Fira Sans Bold'),
         url('https://code.cdn.mozilla.net/fonts/eot/FiraSans-Bold.eot') format('embedded-opentype'),
         url('https://code.cdn.mozilla.net/fonts/woff/FiraSans-Bold.woff') format('woff'),
         url('https://code.cdn.mozilla.net/fonts/ttf/FiraSans-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
}

/*= 1. Global styles =*/

* {
    box-sizing: border-box;
    -webkit-backface-visibility: hidden;
}

:root {
    font-size: 16px;
    --shadow-skew: -45deg;
    --viewport-height: 100vh;
}

html, body {
    font-family: 'Fira Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

section {
    min-height: var(--viewport-height);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

section canvas {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

section header {
    position: absolute;
    top: 2.5rem;
    left: 2.5rem;
}

a {
    outline-color: #aaaaff;
    outline-width: 3px;
}

nav {
    z-index: 9999;
    position: fixed;
    top: 2.5rem;
    right: 2.5rem;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

nav li {
    display: inline-block;
    text-align: center;
    padding: 0.25rem;
}

nav a {
    letter-spacing: 0.1rem;
    color: white;
    text-decoration: none;
    padding: 0.1rem;
}

nav a:hover, nav a.active {
    color: #aaaaff;
}

.text a {
    color: #aaaaff;
    text-decoration: none;
}

.text a:hover {
    color: white;
}

h1, h2, h3 {
    margin: 0;
}

h1 {
    position: absolute;
    top: 10vh;
    z-index: 9999;
    text-align: center;
    left: 2.5rem;
    right: 2.5rem;
    font-size: 3rem;
    font-weight: normal;
}

svg path, svg symbol {
    fill: inherit;
}

.top {
    top: 0;
}

.left {
    left: 0;
}

.right {
    right: 0;
}

.bottom {
    bottom: 0;
}

.body-dark {
    background: #050510;
    color: white;
}

.anchor {
    position: absolute;
    top: 0;
}

.hint {
    position: absolute;
    bottom: 2rem;
}

/*= 2.1. Intro =*/

.intro {
    background: #050510;
    perspective: 1000px;
    overflow: hidden;
}

.intro__grid {
    z-index: 999;
    transform-style: preserve-3d;
    display: grid !important;
    grid-template-columns: repeat(2, 130px);
    grid-template-rows: repeat(2, 130px);
    transform: rotateZ(60deg) rotateX(35deg) rotateY(-45deg);
}

.intro__link {
    transform-style: preserve-3d;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transform: perspective(1000px); /*TODO:*/
    overflow: visible;
}

.intro__platter {
    transform-style: preserve-3d;
    background: white;
    width: 75%;
    height: 75%;
    box-shadow: -30px -30px 50px 15px rgba(255,255,255,0.05), 10px 10px 50px 5px rgba(0, 0, 64, 0.5);
    position: relative;
}

.intro__shadowwrap {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    overflow: hidden;
}

.intro__platter:before {
    display: block;
    pointer-events: none;
    content: '';
    position: absolute;
    top: -10%;
    bottom: -10%;
    left: -10%;
    right: -10%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateZ(-50px);
}

.intro__platter, .intro__description, .intro__icon svg {
    transition: 0.2s ease-in-out all;
}

.intro__link:hover .intro__platter {
    background: #aaaaff;
}

.intro__link:hover .intro__description {
    color: #aaaaff;
}

.intro__description {
    color: white;
    position: absolute;
    font-size: 0.7rem;
    padding-top: 1rem;
    transform: translateY(-50%);
    font-weight: bold;
}

.intro__description.left {
    transform: rotateZ(-90deg) rotateY(180deg) translate3d(-50%, 50%, 0) rotateX(90deg);
    transform-origin: left center 0;
}

.intro__description.right {
    transform: rotateZ(90deg) rotateY(180deg) translate3d(50%, 50%, 0) rotateX(90deg);
    transform-origin: right center 0;
}

.intro__description.bottom {
    transform: rotateZ(180deg) rotateY(180deg) rotateX(90deg);
}

.intro__icon {
    z-index: 10000;
    position: absolute;
    width: 100%;
    height: 100%;
    transform: rotateZ(-45deg) rotateX(-90deg) scaleX(0.5) scaleY(0.5) translateY(-50%);
}

.intro__shadow {
    pointer-events: none;
    opacity: 0.4;
    position: absolute;
    width: 100%;
    height: 100%;
    transform-origin: bottom center;
    transform: rotateZ(-45deg) rotateY(0deg) scale3d(0.66, 0.66, 1) translateY(-54%) skew(var(--shadow-skew)) translateX(53%);
}

.intro__icon img, .intro__icon svg,
.intro__shadow img, .intro__shadow svg {
    width: 100%;
    height: 100%;
}

.intro__link:hover .intro__icon svg {
    fill: #ddddff;
}

.intro__icon svg {
    fill: #ddd;
}

/*= 2.2. About me =*/

.about {
    background: #101020;
    display: block;
}

.about .text {
    padding: 5rem 2.5rem;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.about p {
    margin: 0;
    padding-top: 1rem;
}

.about__photo {
    position: relative;
    max-width: 250px;
    border: 1rem solid white;
    margin: 0 auto;
    display: block;
    transition: 0.3s ease-in-out all;
}

.about__photo:hover {
    transform: scale3d(1.05, 1.05, 1) translateZ(10px) rotateX(1deg);
    box-shadow: 0 10px 10px 10px rgba(0, 0, 0, 0.1);
}

/*= 2.3. Skills =*/

.skills__grid {
    z-index: 999;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 2rem;
    padding: 2.5rem;
    padding-top: 7rem;
}

.skills__list h3 {
    padding-bottom: 1.5rem;
}

.skills__skill {
    padding-bottom: 1rem;
}

.skills__skill span {
    display: block;
}

/*= 2.4. Projects =*/

.projects {
    background: #101020;
    display: block;
}

.projects__grid {
    display: grid;
    grid-gap: 1rem;
    grid-auto-flow: dense;
    grid-auto-rows: 20rem;
    grid-template-columns: 1fr;
    padding: 5.5rem 2.5rem;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.projects__project {
    position: relative;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    transition: 0.3s ease-in-out all;
    box-shadow: 0 0 10px 10px rgba(0, 0, 0, 0);
    overflow: hidden;
    filter: saturate(70%);
    transform-style: preserve-3d;
}

.projects__project:after {
    transition: 0.3s ease-in-out all;
    background-image: linear-gradient(35deg, rgba(255, 255, 255, 0) 75%, rgba(255, 255, 255, 0.05) 85%, rgba(255, 255, 255, 0.1) 100%);
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 50%;
    content: '';
    display: block;
}

.projects__project:hover {
    transform: scale3d(1.05, 1.05, 1) translateZ(12px) rotateX(2deg);
    box-shadow: 0 10px 10px 10px rgba(0, 0, 0, 0.1);
    filter: saturate(20%);
}

.projects__project:hover:after {
    height: 100%;
    width: 150%;
}

.projects__description {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.8);
    padding: 1rem;
    font-size: 0.7rem;
    transition: 0.3s ease-in-out all;
    min-height: 0;
}

.projects__description--more {
    position: absolute;
    margin-top: 2rem;
    right: 1rem;
    left: 1rem;
}

.projects__description--more a {
    z-index: 2;
    position: absolute;
    right: 0;
    color: white;
    text-decoration: none;
    margin-top: 2rem;
    padding: 1rem 3rem;
    border: 1px solid white;
    transition: 0.3s ease-in-out all;
}

.projects__description--more a:before {
    display: block;
    position: absolute;
    z-index: -1;
    bottom: 0;
    left: 0;
    right: 0;
    height: 0;
    transition: 0.3s ease-in-out all;
    background: white;
    content: '';
}

.projects__description--more a:hover {
    color: black;
}

.projects__description--more a:hover:before {
    height: 100%;
}

.projects__project:hover .projects__description {
    min-height: 100%;
}

.projects__project:hover .projects__description--more {
    display: block;
}

/*= 3.1. JavaScript enabled =*/

.js nav {
    transition: 0.2s ease-in-out all;
}

.js .about .text {
    opacity: 0;
    transition: 0.4s ease-in-out all;
}

.js.half-about .about .text {
    opacity: 1;
}

.js .skills__list {
    opacity: 0;
    transform: translateY(-10%);
    transition: 0.4s ease-in-out all;
    transition-delay: 0s;
}

.js .skills__list:nth-child(2) {
    transition-delay: 0.2s;
}

.js .skills__list:nth-child(3) {
    transition-delay: 0.4s;
}

.js .skills__list:nth-child(4) {
    transition-delay: 0.6s;
}

.js .skills__list:nth-child(5) {
    transition-delay: 0.8s;
}

.js .skills__list:nth-child(6) {
    transition-delay: 1.0s;
}

.js.half-skills .skills__list {
    opacity: 1;
    transform: translateY(0);
}

.js .projects__grid {
    opacity: 0;
    transition: 0.4s ease-in-out all;
}

.js.half-projects .projects__grid {
    opacity: 1;
}

/*= 3.2. RWD =*/

@media screen and (max-width: 800px) {
    nav {
        display: none;
    }
}

@media screen and (min-width: 400px) {
    .intro__grid {
        grid-template-columns: repeat(2, 150px);
        grid-template-rows: repeat(2, 150px);
    }
}

@media screen and (min-width: 500px) {
    .about__photo {
        max-width: 300px;
    }

    .intro__grid {
        grid-template-columns: repeat(2, 200px);
        grid-template-rows: repeat(2, 200px);
    }
}

@media screen and (min-width: 800px) {
    .intro__grid {
        grid-template-columns: repeat(2, 300px);
        grid-template-rows: repeat(2, 300px);
    }

    .intro__description {
        font-size: 1.5rem;
        padding-top: 1.5rem;
        font-weight: normal;
    }

    .about {
        display: flex;
    }

    .about .text {
        width: 70%;
    }

    .about__photo {
        float: right;
        margin-left: 1rem;
        margin-bottom: 1rem;
    }

    .about p {
        padding-top: 0;
        padding-bottom: 1rem;
    }

    .skills__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .projects__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .projects__project--big {
        grid-row: span 2;
    }

    .projects__description {
        font-size: 0.8rem;
    }

    .intro__platter:before {
        transform: translateZ(-100px);
    }
}

@media screen and (min-width: 1200px) {
    .intro__grid {
        grid-template-columns: repeat(2, 300px);
        grid-template-rows: repeat(2, 300px);
    }

    .intro__description {
        font-size: 1.5rem;
        padding-top: 1.5rem;
        font-weight: normal;
    }

    .about__photo {
        max-width: 500px;
    }

    .about p {
        padding-top: 0;
        padding-bottom: 1rem;
    }

    .skills__grid {
        grid-template-columns: repeat(6, 1fr);
    }

    .projects__grid {
        grid-template-columns: repeat(3, 1fr);
        grid-auto-rows: 20rem;
    }

    .projects__description {
        font-size: 0.9rem;
    }
}

@media screen and (min-width: 2000px) {
    .projects__description {
        font-size: 1rem;
    }
}

@media screen and (min-width: 3000px) {
    .intro__grid {
        grid-template-columns: repeat(2, 500px);
        grid-template-rows: repeat(2, 500px);
    }
}