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

/* Custom Properties */

:root {
  --ff-primary: "Cousine", monospace;
  --ff-secondary: "Alef", monospace;

  --fw-light: 100;
  --fw-reg: 200;
  --fw-bold: 600;

  --clr-light: #fff;
  --clr-dark: #2d2d2d;
  /* --clr-accent: #4de0d9; */
  --clr-accent: #2196f3;
  /* --clr-accent: #4DD0E1; */

  --fs-h1: 2.125rem;
  --fs-h2: 2rem;
  --fs-h3: 1.25rem;
  --fs-body: 1rem;

  /* border radius to switch between
    circular  / rectangle */
  --br: 50%;

  /* box shadow */
  --bs: 0.25em 0.25em 0.75em rgba(0, 0, 0, 0.25),
    0.125em 0.125em 0.25em rgba(0, 0, 0, 0.15);
}

@media (min-width: 800px) {
  :root {
    --fs-h1: 3.25rem;
    --fs-h2: 3.5rem;
    --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;
}

section {
  padding: 5em 2em;
}

img {
  display: block;
  border-radius: 50%;
  max-width: 100%;
}

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

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

.btn {
  display: inline-block;
  padding: 0.5em 2.5em;
  background: var(--clr-accent);
  color: var(--clr-dark);
  text-decoration: none;
  cursor: pointer;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: var(--fw-bold);
  transition: transform 200ms ease-in-out;
  border-radius: 5px;
}
.btn-blue {
  background-color: blue;
  color: white;
}
.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: 0.25em;
}

.section__title--intro {
  font-weight: var(--fw-reg);
}

.section__title--intro strong {
  display: block;
}

/* intro fade down */
.fade-down {
  opacity: 0;
  transform: translateY(-4rem);
  animation: fade-down 1s ease forwards;
}

@keyframes fade-down {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* end intro fade down */

/* typewriter effect */
.typewriter {
  font-weight: 100;
}
@media (max-width: 600px) {
  .typewriter {
    font-size: 12vw;
  }
}
.typewriter {
  font-family: monospace, monospace;
  position: relative;
  width: fit-content;
  letter-spacing: -1px;
}
.typewriter::before,
.typewriter::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}
.typewriter::before {
  background-color: white;
}
.typewriter::after {
  background-color: black;
  width: 0.09em;
}

.head::before {
  animation: typewriter 3s steps(8) 2s forwards,
    disappear 1s steps(1) 8s infinite;
}

.head::after {
  animation: typewriter 3s steps(8) 2s forwards,
    blink 750ms steps(2, start) infinite, disappear 0s 5.5s forwards;
}

.sub::before {
  animation: typewriter 5s steps(11) 6s forwards;
}

.sub::after {
  opacity: 0;
  animation: typewriter 5s steps(11) 6s forwards,
    blink 750ms steps(2, start) 5s infinite;
}

@keyframes typewriter {
  from {
    opacity: 1;
  }
  to {
    opacity: 1;
    left: 100%;
  }
}

@keyframes blink {
  to {
    visibility: hidden;
  }
}

@keyframes disappear {
  to {
    opacity: 0;
    visibility: hidden;
    display: none;
    color: white;
  }
}

/* End Typewriter effect */

.greeting {
  transform: translateY(3rem);
  animation: fade-up 2s 11s ease forwards;
  opacity: 0;
}

@keyframes fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section__subtitle {
  margin: 0;
  font-size: var(--fs-h3);
  border-radius: 10px;
}

.section__subtitle--work {
  color: var(--clr-accent);
  font-weight: var(--fw-bold);
  margin-bottom: 2em;
}

.section__subtitle--intro,
.section__subtitle--about {
  background: var(--clr-accent);
  font-family: var(--ff-secondary);
  margin-bottom: 1em;
  padding: 0.25em 1em;
  margin-bottom: 1em;
}

/* header */

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

.logo {
  max-width: 75px;
}

.nav-header {
  margin: 0 2em;
  padding: 5px;
  background: white;
  border-bottom-left-radius: 15px;
  border-bottom-right-radius: 15px;
  position: sticky;
  top: 0%;
  z-index: 100;
}

.nav__link {
  color: inherit;
  font-weight: var(--fw-bold);
  font-size: var(--fs-h2);
  text-decoration: none;
  margin: 4rem auto;
  margin-right: 2rem;
}

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

.nav-toggle {
  visibility: hidden;
}

.nav {
  display: flex;
  flex-direction: row;
  list-style: none;
  justify-content: center;
}

.nav__list {
  display: flex;
  flex-direction: row;
  list-style: none;
  font-size: 12px;
  justify-content: space-between;
}

.nav__link {
  font-size: var(--fs-h3);
  font-weight: var(--fw-reg);
}

@media (max-width: 1100px) {
  .nav-toggle {
    visibility: visible;
    padding: 0.5em;
    background: transparent;
    border: 0;
    cursor: pointer;
    position: absolute;
    right: 1em;
    top: 1em;
    z-index: 1000;
  }

  .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(0.5, 0, 0.5, 1);
  }

  .nav__list {
    list-style: none;
    display: flex;
    height: 75%;
    flex-direction: column;
    align-items: center;
    padding: 0;
  }

  .nav-open .nav {
    transform: translateX(0);
  }

  .nav-open .nav__item {
    padding: 1em;
  }

  .nav-open .nav-toggle {
    position: fixed;
  }

  .nav-open .hamburger {
    transform: rotate(0.625turn);
  }

  .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;
  display: flex;
  flex-direction: column;
}

.greeting {
  text-align: center;
  font-size: var(--fs-h3);
  color: var(--clr-accent);
  margin-top: -2em;
  margin-bottom: 4em;
}

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

@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: -1.5rem;
    width: calc(100% + 1.5em);
  }
}

.portfolio-intro {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* My services section */

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

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

.section__title--services::after {
  content: "";
  display: block;
  width: 65%;
  height: 1px;
  margin: 0.5em auto 1em;
  background: var(--clr-light);
  opacity: 0.25;
}

.services {
  margin-bottom: 4em;
}

.service {
  max-width: 500px;
  width: 33%;
  margin: 0 auto;
}

@media (min-width: 1000px) {
  .services {
    display: flex;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
  }

  .service + .service {
    margin-left: 2em;
  }
}
@media (max-width: 1000px) {
  .service {
    margin: 4rem auto;
  }
}
@media (max-width: 600px) {
  .service {
    width: 75vw;
    margin: 4rem auto;
  }
}
.fade-up-container {
  opacity: 0;
  transform: translateY(5rem);
  animation: fade-up 1.5s ease forwards;
  animation-play-state: paused;
}

/* About Me section */
.about-me {
  max-width: 1000px;
  margin: 0 auto;
  opacity: 0;
  transform: translateX(-4rem);
  animation: fade-right 1.5s ease forwards;
  animation-play-state: paused;
}

@keyframes fade-right {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.tech-stack {
  text-align: center;
  padding: 0;
  margin: 0;
  width: 100%;
}

.tech-stack li {
  display: inline;
  width: 48px;
  text-align: center;
  list-style: none;
  margin: 0.25em auto;
}

.tech-stack img {
  display: inline;
  min-width: 48px;
  background-color: whitesmoke;
  box-shadow: 0px 0px 5px white;
}

.tech-stack__item img {
  transition: 0.5s ease;
}

.tech-stack__item img:hover {
  transform: scale(1.25);
  filter: brightness(1.1);
  box-shadow: var(--bs);
}

@media (min-width: 600px) {
  .tech-stack {
    display: grid;
    grid-template-columns: auto auto auto;
  }

  .tech-stack li {
    list-style: none;
  }

  .about-me {
    display: grid;
    grid-template-columns: 1fr 200px;
    grid-template-areas:
      "title img"
      "subtitle img"
      "text img"
      "tech 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 Work */
.my-work {
  background: var(--clr-dark);
  color: var(--clr-light);
  text-align: center;
}

.portfolio {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  max-width: 1000px;
  margin: 0 auto;
  gap: 5px;
}

.portfolio-page img {
  border-radius: none;
  max-width: 50vw;
}

@media (max-width: 800px) {
  .portfolio-page img {
    max-width: 90vw;
  }
}

.portfolio__item {
  overflow: hidden;
  outline: 1px ridge var(--clr-light);
  max-height: 167px;
  position: relative;
}

.portfolio__item:hover img {
  filter: brightness(50%);
}

.portfolio__text {
  position: absolute;
  left: 2rem;
  top: 2rem;
  color: white;
  font-size: var(--fs-h3);
  text-shadow: 2px 2px 5px var(--clr-dark);
  visibility: hidden;
  pointer-events: none;
  transition: transform 650ms cubic-bezier(0.5, 0, 0.5, 1), opacity 250ms linear;
}

.portfolio__item:hover .portfolio__text {
  visibility: visible;
  transform: scale(1.25);
}

.portfolio__item-mobile {
  margin-left: auto;
  margin-right: auto;
  height: 167px;
  object-fit: contain;
}

.portfolio__img {
  border-radius: 0;
  transition: transform 650ms cubic-bezier(0.5, 0, 0.5, 1), opacity 250ms linear;
}

@media (max-width: 400px) {
  .portfolio__item,
  .portfolio__img {
    width: 80vw;
  }
}

.portfolio__item:focus {
  position: relative;
  z-index: 2;
}

a {
  height: fit-content;
}

.portfolio__img:hover,
.portfolio__item:focus .portfolio__img {
  transform: scale(1.2);
  opacity: 0.9;
}

/* My resume */
.section__title--resume {
  text-align: center;
}

.embed-resume {
  text-align: center;
  overflow: hidden;
}

/* Roadmap */
.my-roadmap {
  text-align: center;
}

.roadmap {
  display: grid;
  grid-template-columns: auto auto auto;
}

.roadmap__item {
  padding: 4em;
}

/* Footer */

.footer {
  background: #1d1d1d;
  color: var(--clr-accent);
  text-align: center;
  padding: 2.5em 0;
}

.footer a {
  color: inherit;
  text-decoration: none;
}

.footer__link {
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
}
.footer__link:hover,
.social-list__link:hover {
  opacity: 0.7;
}

.footer__link:hover,
.social-list__link:hover {
  text-decoration: underline;
}

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

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

.social-list {
  list-style: none;
  display: flex;
  justify-content: center;
  margin: 2em 0;
  padding: 0;
}

.social-list__item {
  margin: 0 0.5em;
}

.social-list__link {
  padding: 0.5em;
}

.portfolio-item-individual {
  padding: 0 2em 2em;
  max-width: 75%;
  margin: 0 auto;
}

.portfolio-item-individual p {
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.square {
  border-radius: 0;
}

.video {
  text-align: center;
}

.video__frame {
  width: 100%;
  height: 500px;
}

@media (max-width: 800px) {
  .video__frame {
    height: 200px;
  }

  .portfolio-item-individual {
    padding: 0;
    max-width: 75%;
    margin: 0 auto;
  }

  video {
    width: 100%;
  }
}

.text-center {
  text-align: center;
}