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

/* custom properties */

:root {
    --ff-primary: 'Open Sans';
    --ff-secondary:'Antic Slab' ;

    --clr-light: #fff;
    --clr-dark: #303030;
    --clr-accent: #cf340a;

    --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(0,0,0,0.15) ;
}

@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%;
}

: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-light);
    text-decoration: none;
    cursor: pointer;
    font-size: .8em;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: bold;
    transition: transform 200ms ease-in-out;
}

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


/* Typo */

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: bold;
}

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

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

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

/* header */

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

.logo {
    max-width: 300px;
}

.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: bold;
    font-size: var(--fs-h3);
    text-decoration: none;
}

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

.nav-toggle {
    padding: .5em;
    background: transparent;
    border: 0;
    cursor: pointer;
    position: absolute;
    right: 3em;
    top: 3em;
    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: 3px;
    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:600px) {
    .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);
    }
}

/* my services section */

.my-services {
    background-color: var(--clr-dark);
    background-image: url(../img/kenny-webster-417544-unsplash.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-blend-mode: overlay;
    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: 1px;
    margin: 0.5em auto 1em;
    background: var(--clr-light);
    opacity: 0.25;
}

.services {
    margin-bottom: 3em;
}

.service {
    max-width: 500px;
    margin: 0 auto;
}

@media (min-width:800px) {
    .services {
        display: flex;
        max-width: 1000px;
        margin-left: auto;
        margin-right: auto;
    }

    .service + .service {
        margin-left: 2em;
    }
}

.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;
    }
}

/* portfolio */

.my-work {
    background-color: var(--clr-dark);
    color: var(--clr-light);
    text-align: center;
}

.section__subtitle--work {
    font-weight: bold;
    margin-bottom: 2em;
}

.portfolio {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px,1fr));
}

.portfolio__item {
    /*background: var(--clr-accent);*/
    overflow: hidden;
}

.portfolio__img {
    transition: transform 750ms cubic-bezier(.05, 0, .5, 1), opacity 250ms linear;
}

.portfolio__item:focus {
    position: relative;
    z-index: 2;
}

.portfolio__img:hover, .portfolio__item:focus .portfolio__img {
    transform: scale(1.2);
    opacity: .75;
}

/* footer */

.footer {
    background: #111;
    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: 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;
}

.social-list-img__item {
    width: 100px;
    display: inline;
}

/* portfolio item individual */

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

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

/* Formulaire */

.form {
    margin:10% auto 0 auto;
	padding:30px;
	width:400px;
	height:auto;
	overflow:hidden;
	background:white;
	border-radius:10px;
}

.form label {
	font-size:14px;
	color:darkgray;
	cursor:pointer;
}

.form label,
.form input,
.form textarea {
	float:left;
	clear:both;
}

form input,
form textarea {
	margin:15px 0;
	padding:15px 10px;
	width:100%;
	outline:none;
	border:1px solid #bbb;
	border-radius:20px;
	display:inline-block;
	-webkit-box-sizing:border-box;
	   -moz-box-sizing:border-box;
	        box-sizing:border-box;
    -webkit-transition:0.2s ease all;
	   -moz-transition:0.2s ease all;
	    -ms-transition:0.2s ease all;
	     -o-transition:0.2s ease all;
	        transition:0.2s ease all;
}

button[type=submit] {
	padding:15px 50px;
	width:auto;
	background: var(--clr-accent);
	border:none;
	color:white;
	cursor:pointer;
	display:inline-block;
	float:right;
	clear:right;
	-webkit-transition:0.2s ease all;
	   -moz-transition:0.2s ease all;
	    -ms-transition:0.2s ease all;
	     -o-transition:0.2s ease all;
	        transition:0.2s ease all;
}

button[type=submit]:hover {
	opacity:0.8;
}

button[type="submit"]:active {
	opacity:0.4;
}