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



/***Custom Properties, update these for your own design***/



:root {
    --ff-primary: 'Source Sans Pro', sans-serif;
    --ff-secondary: 'Source Code Pro', monospace;
    
    --fw-reg: 300;
    --fw-bold: 900;
    
    --clr-light: #f5f5f5;
    --clr-dark: #262626; 
    --clr-accent: #5252d4;
    --clr-compliment: #ff6753;
    --clr-third: #ffc600;
    
    --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;
    }
}

@media all and (max-width: 800px) {
    .timeline-list {
        padding:0 2em 0em 2.2em;
    }
}

/***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-third);
    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 1em;
    font-family: var(--ff-secondary);
    margin-bottom: 2.5em;
}

.section__subtitle--work {
    background: var(--clr-compliment);
    -webkit-background-clip: text;
    color: transparent;
    font-weight: var(--fw-bold);
    margin-bottom: 2em;
}



/***header***/



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

.logo {
    max-width: 150px;
    cursor: pointer;
    pointer-events: auto;
}

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

.nav__item1 {
    color: var(--clr-light);
}

.nav__item2 {
    color: var(--clr-accent);
}

.nav__item3 {
    color: var(--clr-compliment);
}

.nav__item4 {
    color: var(--clr-third);
}

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

.nav__linkalt:hover {
    color: var(--clr-light);
}

.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;
    background: var(--clr-compliment);
}

.hamburger,
.hamburger::before,
.hamburger::after {
    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;
    background-color: var(--clr-third) }
.hamburger::after { bottom: 6px;
    background-color: var(--clr-accent) }



/***Intro section***/



.intro {
    position: relative;
}

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

.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/services-bg.jpg);
    background-size: cover;
    /* background-blend-mode: multiply; */
    background-blend-mode: overlay;
    color: var(--clr-light);
    text-align: center;
}

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

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

.services {
    margin-bottom: 4em;
}

.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 175px;
        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: -2em;
        width: calc(100% + 4em);
        padding-left: 2em;
        padding-right: calc(200px + 4em);
    }
    
    .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 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    max-width: 900px;
    margin: 0 auto;
    
}

.portfolio__item {
    background: var(--clr-compliment);
    overflow: hidden;
}

.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: .5;
}



/***footer***/



.footer {
    background: #111;
    color: var(--clr-accent);
    text-align: center;
    padding: 2em 0;
    font-size: var(--fs-h3);

}

.footitem1 { 
    color: var(--clr-light);
    text-decoration: none;
}

.footitem2 {
    color: var(--clr-accent);
    text-decoration: none;
}

.footitem3 {
    color: var(--clr-compliment);
    text-decoration: none;
}

.footitem4 {
    color: var(--clr-third);
    text-decoration: none;
}

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

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

.footer__link:hover {
    color:var(--clr-accent);
    text-decoration: underline;
    
}

.social-list__item {
    margin: 0 .5em; 
    list-style: none;
    display: inline;
    justify-content: space-evenly;
    margin: 2em 0 0;
    padding: 0;
}

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

.social-list__link:hover {
    color: var(--clr-light);
}


/***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;
}



/***Timeline***/



  .block-content {
    min-height:100vh;
  }

  .block-content p {
      font-size:1.1em;
      line-height:1.5;
      margin:0 auto 1em auto;
  }

  .block-content h2 {
  
      text-align:center;
      margin:1em 0 0 0;
      font-size:2.5em;
      line-height:1;
      letter-spacing:0.02em;
  
      @media all and (max-width:40em) {
  
      font-size: 4.75em;
  
      }
  }

  .subtitle {
  
      font-family: var(--ff-primary);
      font-weight:300;
      text-transform:uppercase;
      text-align:center;
      font-size:1em;
      margin:0.5em 0;
  }

  .heading-group {
      margin:0 0 5em 19.45em;
      
  }

  .timeline-img-header {
	height: 200px;
	position: relative;
    right: 152px;
}

.timeline-border {
    border: solid;
    border-color: rgba(82,82,212,1);
    border-radius: 4px;
}

.timeline-img-content {
    position: relative;
    padding: 10px 10px;
    border-radius: 4px;
	background: #f5f5f5;
    width: 93%
}

  .content {
    position: relative;
    padding: 10px 30px;
    border-radius: 4px;
	background: #f5f5f5;
	box-shadow: 0 20px 25px -15px rgba(0, 0, 0, .3);
    width: 93%;
    overflow: visible;  
}
  .content::after {
    content: '';
    position: absolute;
    border-style: solid;
    width: 0;
    height: 0;
    top: 0;
    left: -2em;
    border-width: 10px 15px 10px 0;
    border-color: transparent var(--clr-compliment) transparent transparent;
  }

  .specialshadow {
	box-shadow: 0 20px 25px -15px var(--clr-third);
  }

  .content h3 {
      font-size: 1.2em;
      line-height:1.2;
      letter-spacing:0.02em;
      color:#fff;
  
      @media all and (min-width:40em) {
  
      font-size: 2.5em;
  
      }
  }
  
  .l-block-spacing {
  
      
      min-height:80vh;
      padding:2em 0 4em 0;
  }
  
  .l-contained {
      max-width:1000px;
      margin-left:auto;
      margin-right:auto;
      
      padding-left:1em;
      padding-right:1em;
  
      @media all and (min-width:40em) {
          padding-left:2em;
          padding-right:2em;
      }
  }
  .timeline-list {
      border-left: solid var(--clr-compliment);
      padding-bottom: 1em;
      position: relative;
      max-width: 39em;
      min-width:20em;
      margin:0 auto;
  }
    .t-block-color {
        background: rgb(255, 255, 255);
    }
  .t-block-color h2 {
      color:rgb(0, 0, 0);
  }
  .t-block-color h3 {
      color:#000000;
  }
  .t-block-color p {
      color:#000000;
  }
  


  /***Timeline animation 
  scale in the circle, followed by the list item
  the border must also animate in.***/

  
  .timeline-list li {
  
      margin:0 0 3em 0;
      padding:0 2em 0em 2em;
      position: relative;
      min-width: 100%;
      min-height: 100%;
  
  }
  .timeline-list::before {
        content: "";
        border-left: .25em solid var(--clr-accent);
        height: 100%;
        position: absolute;
        top: 0;
        bottom: 0;
        left: -.178em;
        transform-origin:0 0;
        animation:scaleVertical 3s 1s ease both 1;
      }
  .timeline-list li::before {
  
      content: "";
      position: absolute;
      top: -.34em;
      left: -3.2em;
      width: 1.8em;
      height: 1.8em;
      max-width:50%;
      border-radius: 50%;
      background: none repeat scroll 0% 0% rgb(0, 0, 0);
      border: .3em solid var(--clr-accent);
      animation:revealScaleUp 0.75s 0s ease both 1;
  }
  .timeline-list::after {
        content: "";
        clear:both;
        position: absolute;
        bottom: -.9em;
        left: -1em;
        width: 1.8em;
        height: 1.8em;
        border-radius: 50%;
        background: none repeat scroll 0% 0% rgb(0, 0, 0);
        border: .3em solid var(--clr-third);
        box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.1);
        animation:revealScaleUp 0.75s 2.82s ease both 1;
      }

  .timeline-list {
     
     animation:reveal 2s 0 ease both 1;
  }
  .timeline-list li .content {
    animation:revealFromLeft 0.5s 0s ease both 1;
  }
  
  
  
  
  .timeline-list li:nth-child(1):before {
    animation-delay:0.85s;
  }
  .timeline-list li:nth-child(1) .content {
    animation-delay:1.05s;
  }
  .timeline-list li:nth-child(2):before {
     animation-delay:1.2s;
  }
  .timeline-list li:nth-child(2) .content {
    animation-delay:1.5s;
  }
  .timeline-list li:nth-child(3):before {
    animation-delay:1.8s;
  }
  .timeline-list li:nth-child(3) .content {
    animation-delay:2.1s;
  }
  .timeline-list li:nth-child(4):before {
    animation-delay:2s;
  }
  .timeline-list li:nth-child(4) .content {
    animation-delay:2.3s;
  }
  
  @keyframes revealFromLeft {
    0% {
      transform:translateX(-1em);
      opacity:0;
    }
    100% {
      opacity:1;
      transform:translateX(0);
    }
  }
  @keyframes reveal {
    0% {
      opacity:0;
    }
    100% {
      opacity:1;
    }
  }
  @keyframes scaleVertical {
    0% {
      transform:scaleY(0);
      
    }
    100% {
      transform:scaleY(1);
    }
  }
  @keyframes revealScaleUp {
    0% {
      opacity:0;
      transform:scale(0.5);
    }
    
    
    
    50% {
       opacity:1;
       transform:scale(1.3);
      
    }
    100% {
      opacity:1;
      transform:scale(1);
      
    }
  }