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

/* custom properties, update if necessary */
:root {
    --ff-primary: 'Poppins', sans-serif;
    /* --ff-primary: 'Source Sans Pro', sans-serif; */
    --f-secondar: 'Source Code Pro', monospace;

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

    --clr-light: #fff;
    --clr-dark: #303030;
    --clr-accent: #41acdd;
    
    --fs-h1: 3rem;
    --fs-h2: 2.25rem;
    --fs-h3: 1.25rem;
    --fs-body: 1rem;

    --bs: 0.25em 0.25em 075em rbga(0,0,0,.25), 
    0.125em 0.125em 0.125 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;
}

.intro {
    padding: 2em 2em;
}

.my-services {
    padding: 3em 2em;
}


.about-me,.my-work {
    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: flex;
    justify-content: center;
    align-items: center;
    padding: .5em 2.5em;
    background: var(--clr-accent);
    color: var(--clr-dark);
    text-decoration: none;
    cursor: pointer;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: var(--fw-bold);
    transition: transform 200ms ease-in-out;
    margin: 0 21em;
    border-radius: .125em;
}                    

.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: .25rem;
}

.section__title--services {
    margin-bottom: .5rem;
}

.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 {
    background: var(--clr-accent);
    padding: .25em 1em;
    font-family: var(--f-secondar);
    margin-bottom: 6em;
}


.section__subtitle--about {
    background: var(--clr-accent);
    padding: .25em 1em;
    font-family: var(--f-secondar);
    margin-bottom: 0.5em;
}

.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;
}

.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, 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: fixed;
    right: 1.25em;
    top: 1em;
    width: 2.5rem;
    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 */

.hamburger {
    display: block;
    /* position: relative; */
    position: fixed;
    right: 1.5rem;
}
.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: 320px;
        position: relative;
        z-index: 2;
        bottom: 2em;
    }

    .section__subtitle--intro {
        align-self: start;
        grid-column: -1 / 1;
        grid-row: 2;
        text-align: right;
        position: relative;
        left: -1.5rem;
        width: calc(100% + 1.5em);
    }
}

/* My skills section */

.my-services {
    background-color: var(--clr-dark);
    /* background-image: url(../images/Hand\ coding-bro.svg); */
    background-size: 800px;
    /* background-blend-mode: multiply; */
    color: var(--clr-light);
    text-align: center;
}

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

/* about me */

@media (min-width: 600px) {
    .section__subtitle--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;
        bottom: 3em;
    }
}

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

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

.portfolio {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    /* max-width: ; (optional) */
    overflow: hidden;
}

.portfolio__item {
    background: var(--clr-accent);
}

.portfolio__img {
    transition: transform 750ms cubic-bezier(.5, 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;
}
/*                              (add logos to footer later such as twitter, github etc) */
/* 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: var(--fw-bold);
}

.footer__link:hover,
.social-list__link:hover {
    opacity: .5;
}

.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: 0 2em 2em;
    max-width: 1000px;
    margin: 0 auto;
}

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

.webimg {
    font-size: .75rem;
    position: relative;
    justify-content: center;
    top: 3rem;
    padding: 0;
}