*,
*::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: #fff;
    --clr-dark: #303030;
    --clr-accent: #f1ed09;

    --fs-h1: 3rem;
    --fs-h2: 2.25rem;
    --fs-h3: 1.25rem;
    --fs-h4: 1.15rem;
    --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: 1.3 rem;
    }
}

@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)
    }
}

/*  General styles */

html{
    scroll-behavior: smooth;
}

body {
    background: var(--clr-light);
    color: var(--clr-dark);
    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;
}

.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;
}

.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;
    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;
    background-color: var(--clr-dark);
    margin: 0;
    padding-bottom: 0;
}

.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: 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: 0;
    top: 0;
    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: 4px;
    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;
}

@media(min-width:768px){
    .nav-toggle {
        right: 1em;
        top: 1em;
        position: fixed;
    }
}

/* Intro Section */
.intro {
    position: relative;
}


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

.profile_image {

    border-radius: 250px;
}

/* My services */

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

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

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

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

.services {
    margin-bottom: 4em;
}

@media(min-width: 800px){
    .services {
        display: flex;
        max-width: 1000px;
        margin-left: auto;
        margin-right: auto;
        font-size: var(--fs-h4);
    }

    .service + .service {
        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 400px;
        grid-template-areas: 
                    "title img"
                    "subtitle img"
                    "text img";
        grid-column-gap: 1em;   
    }

    .section__title--about
    {
        grid-area: title;
    }
    
    .section__subtitle--about {
        grid-column: 1/-1;
        grid-row:2;
        position: relative;
        left: -2em;
        width:calc(100% + 4em);
        padding-left: 2em;
        padding-right: calc(330px + 3em);
    }
    .about-me__img {
        grid-area: img;
        position:relative;
        z-index: 2;
    }
}

/* My Work */

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

.portfolio{
    text-align: left;
}

.portfolio + .portfolio {
    margin-top: 30px;
}

.tenure{
    color: var(--clr-accent);
    position: relative;
}
.tenure::after {
    content: '';
    display: block;
    width: 8em;
    height: 1px;
    margin: 0;
    background: var(--clr-light);
}

.designation{
    text-transform: uppercase;
    font-style: var(--fw-bold);
}

.company {
    font-style: italic;
    font-weight: var(--fw-reg);
}

.tasks h4{
    font-weight: var(--fw-reg);
}
.tasks strong {
    font-style: italic;
}

.tasks ul {
    list-style-type:circle;
}

@media(min-width: 600px){
    .portfolio{
        text-align: left;
        display: flex;
    }
    
    .tenure{
        flex: 1;
    }
    .experience{
        flex: 4;
    }
}

/* My Education */
.my-education {
    background-color: #382525;
    background-image: url(../img/graduation2.png);
    background-size: cover;
    background-blend-mode:soft-light;
    color: var(--clr-light);
    text-align: center;
}
/* .my-education {
    background-color: var(--clr-dark);
    color: var(--clr-light);
    text-align: center;
} */

.education-details + .education-details {
    margin-top: 30px;
}

.college{
    color: var(--clr-light);
    position: relative;

}
.college::after {
    content: '';
    display: block;
    width: 10em;
    height: 1px;
    margin: 0.5em auto 1em;
    background: var(--clr-light);
}

.college{
    text-transform: uppercase;
    font-style: var(--fw-bold);
}

.location {
    margin-top: 0;
    margin-bottom: 0;
    font-style: italic;
    font-weight: var(--fw-reg);
}
.specilazation {
    margin-top: 0;
}
.specilazation h4{
    font-weight: var(--fw-reg);
}
.specilazation strong {
    font-style: italic;
}


@media(min-width: 600px){
    
}

/* 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: .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;
}