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

/* Custom Properties */

:root {
    --ff-primary: 'Lora', serif;
    --ff-secondary: 'Roboto Slab', serif;
    
    --fw-reg: 400;
    --fw-bold: 700;
    
    --clr-light: #fff;
    --clr-dark: #303030;
    --clr-accent: #50c9ee;
    
    --fs-h1: 3rem;
    --fs-h2: 2.25rem;
    --fs-h3: 1.25rem;
    --fs-body: 1rem;
    
    --bs: 0.25em 0.25em 0.75em rgba(0,0,0,.25),
          0.125em 0.125em 0.25em rgba(0,0,0,.15);
}

@media (min-width: 800px) {
    :root {
        --fs-h1: 4.5rem;
        --fs-h2: 3.75rem;
        --fs-h3: 1.5rem;
        --fs-body: 1.125rem;
    }
}

/* General styles */

html {
    scroll-behavior: smooth;
}


body {
    background: var(--clr-light);
    color: var(--clr-dark);
    margin: 0;
    font-family: var(--ff-primary);
    font-size: var(--fs-body);
    line-height: 1.6;
}

section {
    padding: 5em 2em;
}

img {
    display: block;
    max-width: 100%;
}

strong { font-weight: var(--fw-bold) }

:focus {
    outline: 3px solid var(--clr-accent);
    outline-offset: 3px;
}

/* Buttons */

.btn {
    display: inline-block;
    padding: .5em 2.5em;
    background: var(--clr-accent);
    color: var(--clr-dark);
    text-decoration: none;
    cursor: pointer;
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: var(--fw-bold);
    transition: transform 200ms ease-in-out;
    border-radius: 1em;
}

.btn:hover {
    transform: scale(1.1); 
}

/* Typography */

h1,
h2,
h3 {
    line-height: 1;
    margin: 0;
}

h1 { font-size: var(--fs-h1) }
h2 { font-size: var(--fs-h2) }
h3 { font-size: var(--fs-h3) }


.section__title {
    margin-bottom: .25em;
}

.section__title--intro {
    font-weight: var(--fw-reg);
}

.section__title--intro strong {
    display: block;
}

.section__subtitle {
    margin: 0;
    font-size: var(--fs-h3);
}

.section__subtitle--intro,
.section__subtitle--about {
    background: var(--clr-accent);
    padding: .25em 1em;
    font-family: var(--ff-secondary);
    margin-bottom: 1em;
}

.section__subtitle--work {
    color: var(--clr-accent);
    font-weight: var(--fw-bold);
    margin-bottom: 2em;
}

/* header */

header {
    display: flex;
    justify-content: space-between;
    padding: 1em;
}

.nav {
    position: fixed;
    background: var(--clr-dark);
    color: var(--clr-light);
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    
    transform: translateX(100%);
    transition: transform 250ms cubic-bezier(.5, 0, .5, 1);
}

.nav__list {
    list-style: none;
    display: flex;
    height: 100%;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav__link {
    color: inherit;
    font-weight: var(--fw-bold);
    font-size: var(--fs-h2);
    text-decoration: none;
}

.nav__link:hover {
    color: var(--clr-accent);
}

.nav-toggle {
    padding: .5em;
    background: transparent;
    border: 0;
    cursor: pointer;
    position: absolute;
    right: 1em;
    top: 1em;
    z-index: 1000;
}

.nav-open .nav {
    transform: translateX(0);
}

.nav-open .nav-toggle {
    position: fixed;
}

.nav-open .hamburger {
    transform: rotate(.625turn);
}

.nav-open .hamburger::before {
    transform: rotate(90deg) translateX(-6px);
}

.nav-open .hamburger::after {
    opacity: 0;
}

.hamburger {
    display: block;
    position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    background: var(--clr-accent);
    width: 2em;
    height: 2px;
    border-radius: 1em;
    transition: transform 250ms ease-in-out;
}


.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
}

.hamburger::before { top: 6px; }
.hamburger::after { bottom: 6px; }


/*  Intro section  */

.intro {
    position: relative;
}

.intro__img {
    box-shadow: var(--bs);
}

.section__subtitle--intro {
    display: inline-block;
}

@media (min-width: 670px) {
    .intro {
        display: grid;
        width: min-content;
        margin: 0 auto;
        grid-column-gap: 1em;
        grid-template-areas: 
            "img title"
            "img subtitle";
        grid-template-columns: min-content max-content;
    }
    
    .intro__img {
        grid-area: img;
        min-width: 250px;
        position: relative;
        z-index: 2;
    }    
    
    .section__subtitle--intro {
        align-self: start;
        grid-column: -1 / 1;
        grid-row: 2;
        text-align: right;
        position: relative;
        left: -1.5em;
        width: calc(100% + 1.5em);
    }
}



/*  What I do section  */

.my-services {
    background-color: var(--clr-dark);
    background-image: url(../img/WhatIDo-bg.jpg);
    background-size: cover;
    color: var(--clr-light);
    text-align: center;
}

.section__title--services {
    color: var(--clr-accent);
    position: relative;
}

.section__title--services::after {
    content: '';
    display: block;
    width: 2em;
    height: 2px;
    margin: 0.2em auto 1em;
    background: var(--clr-light);
    opacity: 0.5;
}

.services {
    margin-bottom: 4em;
}

.service {
    max-width: 400px;
    margin: 0 auto 3em;
}

@media (min-width: 1200px) {
    .services {
        display: flex;
        margin: 2em 10em;
        gap: 3em;
    }
    
    .service {
        margin-bottom: 0;
        width: 400px;
    }
}

/*  About me section  */

.about-me {
    max-width: 1000px;
    margin: 0 auto;
}

.about-me__img {
    box-shadow: var(--bs);
}

@media (min-width: 600px) {
    .about-me {
        display: grid;
        grid-template-columns: 1fr 200px;
        grid-template-areas: 
            "title img"
            "subtitle img"
            "text img";
        grid-column-gap: 2em;
    }
    
    .section__title--about {
        grid-area: title;
    }
    
    .section__subtitle--about {
        grid-column: 1 / -1;
        grid-row: 2;
        position: relative;
        left: -1em;
        width: calc(100% + 2em);
        padding-left: 1em;
        padding-right: calc(200px + 4em);
    }
    
    .about-me__img {
        grid-area: img;
        position: relative;
        z-index: 2;
    }
}

/* My Work */

.my-work {
    background: #434343;
    background: -webkit-linear-gradient(top left, #434343, #111111);
    background: -moz-linear-gradient(top left, #434343, #111111);
    background: linear-gradient(to bottom right, #434343, #111111);
    color: var(--clr-light);
    text-align: center;    
}

.projects {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 auto;
}

.projects__card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    max-width: 550px;
    background-color: var(--clr-light);
    border-radius: 2em;
    color: var(--clr-dark);
    overflow: hidden;
    transition: transform 200ms ease-in-out;
    margin-bottom: 2em;
    min-height: 500px;
}

.card__description {
    max-width: 90%;
    margin: 1em auto;
}

.card__title {
    color: var(--clr-accent);
    margin-bottom: -1.5em;
}

.card__title::after {
    content: '';
    display: block;
    width: 2em;
    height: 2px;
    margin: 0.2em auto 1em;
    background: var(--clr-light);
    opacity: 0.5;
}

.btn--card {
    margin-bottom: 1.5em;
}

.card__title {
    margin-top: 0.5em;
}

@media (min-width: 1100px) {
    .projects {
        flex-direction: row;
        justify-content: center;
        max-width: 80%;
        margin: 0 auto;
    }
    
    .projects__card {
        max-width: 400px;
        min-width: 320px;
        background-color: var(--clr-light);
        border-radius: 2em;
        color: var(--clr-dark);
        overflow: hidden;
        transition: transform 200ms ease-in-out;
        min-height: 550px;
        max-width: 600px;
    }

    .projects__card:nth-child(2){
        margin-left: 2.5em;
        margin-right: 2.5em;
    }

    .projects__card:hover {
        transform: scale(1.1);
    }

    .card__image {
        height: 250px;
        margin: 0 auto;
        object-fit: cover;
        box-shadow: var(--bs);
    }

    .card__title {
        margin: 0.3em 0.5em -2em 0;
    }
}



/* footer */

.footer {
    background: rgb(5, 5, 5);
    color: var(--clr-accent);
    text-align: center;
    padding: 2.5em 0;
    font-size: var(--fs-h3);

}

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

.footer__link {
    font-weight: var(--fw-bold);
}

.footer__link:hover,
.social-list__link:hover {
    opacity: .7;
}

.footer__link:hover {
    text-decoration: underline;
}

.social-list {
    list-style: none;
    display: flex;
    justify-content: center;
    margin: 2em 0 0;
    padding: 0;
}

.social-list__item {
    margin: 0 .5em;
}

.social-list__link {
    padding: .5em;
}


/* Individual portfolio item styles */

.portfolio-item-individual {
    padding: 0em 2em 2em;
    max-width: 1000px;
    margin: 0 auto;
}

.portfolio-item-individual p {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.portfolio-item-individual__video {
    width: 100%;
    max-width: 1000px;
    margin: 2em auto 1em;
    box-shadow: var(--bs);
}

.flex-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 2em;
}