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

/* custom properties */
:root {
    --ff-primary: 'Source Sans Pro', sans-serif;
    --ff-secondary: 'Source Code Pro', monospace;

    --fw-reg:300;
    --fw-bold:900;

    --clr-light: rgb(255, 253, 248);
    --clr-dark: #4d4d4d;
    --clr-accent: #b9f0f1;

    --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),
            0.0125em 0.125em 0.25em rgba(0,0,0,15);
}
/* makes font bigger with bigger screens*/
@media(min-width: 800px){
    :root{
        --fs-h1:4.5rem;
        --fs-h2: 3.75rem;
        --fs-h3:1.5rem;
        --fs-body:1.125rem;
    }
}
/* General Styles */

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;

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

strong { font-weight: var(--fw-bold)}
/*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{
    padding: 5em 2em;
}

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


.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);
}

/* Nav bar */

header {
    display: flex;
    justify-content: space-between;
}
.logo{
    max-width: 100px;

}

.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, 0);

}

.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) translate(-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-resume {
    background-color: var(--clr-dark);
    background-image: url(services-bg.jpg);
    background-size: cover;
    /* background-blend-mode: multiply; */
    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;
}

.resume {
    margin-bottom: 4em;
}

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

@media (min-width: 800px) {
    .resume {
        display: flex;
        max-width: 1000px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .resume-item + .resume-item {
        margin-left: 2em;
    }
}

/*about me*/
.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 skills*/
.my-skills{
    background-color: var(--clr-dark);
    color: var(--clr-light);
    text-align: center;
}

.section__title--skills{
    color: var(--clr-accent);
}
.section__subtitle--skills{
    background-color: var(--clr-accent);
    padding: .25em 1em ;
    font-family: var(--ff-secondary);
    margin-bottom: 1em;
    color: var(--clr-dark);
    font-weight: var(--fw-reg);
}

.skill-logos{
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(300px,1fr));
}

.skill-logos__item{
    background-color: var(--clr-accent);
    overflow: hidden;
}
.skill-logos__img{
    transition: 
    transform 750ms cubic-bezier(.5, 0, .5, 1),
    opacity 250ms linear;

}

.skill-logos__img:hover,
.skill-logos__item:focus .skill-logos__img{
    transform: scale(1.2);
    opacity: .75;
}


/* footer */

.footer{
    background-color: #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: 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{
    max-resolution: 0.5em;
}

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