*,
*::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: #4098D7;

  --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;
  }
}

/* General Styles */
html { 
  scroll-behavior: smooth;
}
body { 
  background-color: 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);}

/* Buttons */
.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;
}

:focus { 
  outline: 3px solid var(--clr-accent);
  outline-offset: 3px;
}

.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: 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;
}

.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;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: center;
  height: 100%;
  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);
}

/* Hamburger */
.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;
}

.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;
    column-gap: 2em;
    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: -1.5rem;
    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;
  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-color: var(--clr-light);
  opacity: 0.25;
}

.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 */
.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";
      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 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));
}

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

.portfolio__img { 
  width: 100%;
  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 { 
  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;
}

/* 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;
}

.portfolio-item-individual__btn-container {
  display: flex;

  flex-direction: column;
  align-items: center;
  justify-content: center;
}

@media (min-width: 400px) {
  .portfolio-item-individual__btn-container { 
    flex-direction: row;
    
  }

  .portfolio-item-individual__btn {
    margin-left: 2rem;
    margin-bottom: 0;
  }
}


.portfolio-item-individual__btn {

  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;

}