@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&display=swap');

:root {
  --header-height: 80px;

  --hue-color: 200;
  --first-color: hsl(var(--hue-color), 69%, 61%);
  --first-color-second: hsl(var(--hue-color), 69%, 61%);
  --first-color-alt: hsl(var(--hue-color), 57%, 53%);
  --first-color-lighter: hsl(var(--hue-color), 92%, 85%);
  --title-color: hsl(var(--hue-color), 8%, 10%);
  --text-color: hsl(var(--hue-color), 10%, 40%);
  --text-color-light: hsl(var(--hue-color), 8%, 65%);
  --input-color: hsl(var(--hue-color), 70%, 96%);
  --body-color: hsl(var(--hue-color), 60%, 99%);
  --container-color: white;
  --scroll-bar-color: hsl(var(--hue-color), 12%, 90%);
  --scroll-bar-thumb-color: hsl(var(--hue-color), 12%, 40%);
  --error-color: hsl(4, 71%, 50%);
  --correct-color: hsl(101, 78%, 41%);

  --body-font: 'Poppins', sans-serif;

  --bigfont-size: 32px;
  --h1-font-size: 24px;
  --h2-font-size: 20px;
  --h3-font-size: 18px;
  --normal-font-size: 15px;
  --small-font-size: 13px;
  --smaller-font-size: 12px;

  --font-medium: 500;
  --font-semi-bold: 600;

  --mb-0-25: 4px;
  --mb-0-5: 8px;
  --mb-0-75: 12px;
  --mb-1: 16px;
  --mb-1-5: 24px;
  --mb-2: 32px;
  --mb-2-5: 40px;
  --mb-3: 48px;

  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 100;
}

@media screen and (min-width: 968px) {
  :root {
    --bigfont-size: 48px;
    --h1-font-size: 36px;
    --h2-font-size: 24px;
    --h3-font-size: 20px;
    --h4-font-size: 18px;
    --normal-font-size: 16px;
    --small-font-size: 14px;
    --smaller-font-size: 13px;
  }
}

body {
  --hue-color: 200;
  --first-color: hsl(var(--hue-color), 69%, 61%);
  --first-color-second: hsl(var(--hue-color), 69%, 61%);
  --first-color-alt: hsl(var(--hue-color), 57%, 53%);
  --first-color-lighter: hsl(var(--hue-color), 92%, 85%);
  --title-color: hsl(var(--hue-color), 8%, 10%);
  --text-color: hsl(var(--hue-color), 10%, 40%);
  --text-color-light: hsl(var(--hue-color), 8%, 65%);
  --input-color: hsl(var(--hue-color), 70%, 96%);
  --body-color: hsl(var(--hue-color), 60%, 99%);
  --container-color: white;
  transition: background-color 0.2s, color 0.2s;
}

body.dark-theme {
  --first-color-second: hsl(var(--hue-color), 30%, 8%);
  --title-color: hsl(var(--hue-color), 8%, 95%);
  --text-color: hsl(var(--hue-color), 8%, 75%);
  --input-color: hsl(var(--hue-color), 29%, 16%);
  --body-color: hsl(var(--hue-color), 28%, 8%);
  --container-color: hsl(var(--hue-color), 29%, 16%);
  --scroll-bar-color: hsl(var(--hue-color), 12%, 40%);
  --scroll-bar-thumb-color: hsl(var(--hue-color), 12%, 90%);
  transition: background-color 0.2s, color 0.2s;
}

header,
footer,
.nav-logo,
.nav-toggle,
.nav-link,
.nav-close {
  transition: background-color 0.2s, color 0.2s;
}

.nav-buttons {
  display: flex;
  align-items: center;
}

.change-theme {
  font-size: 20px;
  color: var(--title-color);
  margin-right: var(--mb-1);
  cursor: pointer;
}

.change-theme:hover {
  color: var(--first-color);
}

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  background-color: var(--body-color);
  color: var(--text-color);
}

h1, h2, h3, h4 {
  color: var(--title-color);
  font-weight: var(--font-semi-bold);
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

.section {
  padding: 32px 0 64px;
  margin: 0 10px;
  scroll-margin-top: 20px;
}

.section-title {
  font-size: var(--h1-font-size);
}

.section-subtitle {
  display: block;
  font-size: var(--small-font-size);
  margin-bottom: var(--mb-3);
}

.section-title,
.section-subtitle {
  text-align: center;
  margin-bottom: var(--mb-1);
  margin-bottom: 30px;
}

.container {
  max-width: 100%;
  margin-left: var(--mb-1-5);
  margin-right: var(--mb-1-5);
}

.grid {
  display: grid;
  gap: 24px;
}

.header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-fixed);
  background-color: var(--body-color);
}

.nav {
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo,
.nav-toggle {
  color: var(--title-color);
  font-weight: var(--font-medium);
}

.nav-log:hover {
  color: var(--first-color);
}

.nav-toggle {
  font-size: 17.6px;
  cursor: pointer;
}

.nav-toggle:hover {
  color: var(--first-color);
}

@media screen and (max-width: 767px) {
  .nav-menu {
    position: fixed;
    top: -100%;
    left: 0;
    width: 100%;
    background-color: var(--body-color);
    padding: 32px 24px 64px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
    border-radius: 0 0 24px 24px;
    transition: 0.2s;
  }
}

.nav-list {
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: var(--small-font-size);
  color: var(--title-color);
  font-weight: var(--font-medium);
}

.nav-link:hover {
  color: var(--first-color);
}

.nav-icon {
  font-size: 19.2px;
}

.nav-close {
  position: absolute;
  right: 20.8px;
  bottom: 8px;
  font-size: 24px;
  cursor: pointer;
  color: var(--first-color);
}

.nav-close:hover {
  color: var(--first-color-alt)
}

.show-menu {
  top: 0;
}

.active-link {
  color: var(--first-color);
}

.scroll-header {
  box-shadow: 0 -1px 4px rgba(0, 0, 0, 0.15);
}

.home-container {
  gap: 16px;
}

.home-picture {
  border-radius: 50%;
}

.home-content {
  grid-template-columns: .5fr 3fr;
  padding-top: 60px;
  align-items: center;
}

.home-social {
  display: grid;
  grid-template-columns: max-content;
  row-gap: 16px;
}

.home-social-icon {
  font-size: 25px;
  color: var(--first-color);
}

.home-social-icon:hover {
  color: var(--first-color-alt)
}

.home-picture {
  width: 170px;
}

.home-data {
  grid-column: 1/3;
}

.home-title {
  font-size: var(--bigfont-size);
}

.home-subtitle {
  font-size: var(--h3-font-size);
  color: var(--text-color);
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-0-75);
}

.home-description {
  margin-bottom: var(--mb-2);
}

.button {
  display: inline-block;
  background-color: var(--first-color);
  color: white;
  padding: 16px;
  border-radius: 8px;
  font-weight: var(--font-medium);
  text-decoration: none;
  border-width: 0;
}

.button:hover {
  background-color: var(--first-color-alt);
  cursor: pointer;
}

.button-icon {
  font-size: 20px;
  margin-left: var(--mb-0-5);
  transition: 0.2s;
}

.button-flex {
  display: inline-flex;
  align-items: center;
  font-size: var(--normal-font-size);
  font-family: var(--body-font);
}

.about-description {
  text-align: left;
  margin-bottom: var(--mb-0-25);
}

.about-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
}

.experience-job {
  display: flex;
  padding-left: 70px;
  padding-right: 70px;
}

.experience-timeline {
  flex: 1;
}

.experience-rounder {
  display: flex;
  width: 13px;
  height: 13px;
  background-color: var(--first-color);
  border-radius: 50%;
}

.experience-line {
  display: flex;
  width: 1px;
  height: 100%;
  background-color: var(--first-color);
  transform: translate(6px);
}

.experience-image-container {
  padding-left: 30px;
}

.experience-image {
  width: 70px;
  border-radius: 10px;
}

.experience-text {
  flex: 200;
  padding-left: 30px;
}

.experience-title {
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
}

.experience-subtitle {
  font-size: var(--h4-font-size);
  font-weight: normal;
}

.experience-location {
  font-size: var(--normal-font-size);
  font-style: italic;
}

.experience-calendar {
  font-size: var(--normal-font-size);
}

.experience-description {
  padding-top: 20px;
  padding-bottom: 30px;
}

.projects-container {
  gap: 24px;
  grid-template-columns: repeat(2, 1fr);
}

.projects-content {
  position: relative;
  background-color: var(--container-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
  transition: 0.2s;
  border-radius: 15px;
  overflow: hidden;
}

.projects-content:hover {
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.35);
  transform: translate(0, -7px);
  cursor: pointer;
}

.projects-image {
  width: 100%;
  height: 350px;
  object-fit: cover;
  object-position: center;
}

.projects-link {
  text-decoration: none;
  color: inherit;
}

.projects-text {
  padding: 10px 8px 20px 24px;
}

.projects-title {
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
}

.projects-subtitle {
  font-size: var(--h4-font-size);
  margin-bottom: var(--mb-1);
  font-weight: normal;
  font-style: italic;
}

.projects-demo {
  font-weight: bold;
  color: var(--first-color);
}

.projects-demo:hover {
  text-decoration: underline;
}

.skills-container {
  row-gap: 30px;
  column-gap: 20px;
  max-width: 1000px;
  grid-template-columns: repeat(4, 1fr);
}

.skills-content {
  position: relative;
  background-color: var(--container-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
  transition: 0.2s;
  border-radius: 40px;
  display: flex;
  align-items: center;
}

.skills-content:hover {
  box-shadow: 0 3px 5px rgba(0, 0, 0, 0.35);
  transform: translate(0, -4px);
  cursor: default;
}

.skills-image {
  width: 80px;
  padding: 15px;
}

.contact-information {
  display: flex;
  margin-bottom: var(--mb-2);
}

.contact-icon {
  font-size: 32px;
  color: var(--first-color);
  margin-right: var(--mb-0-75);
}

.contact-title {
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
}

.contact-subtitle {
  font-size: var(--small-font-size);
  color: var(--text-color-light);
}

.contact-content {
  background-color: var(--input-color);
  padding: 12px 16px 4px;
  border: solid;
  border-width: 1px;
  border-color: var(--first-color-lighter);
  border-radius: 8px;
}

.contact-content.error {
  border-color: var(--error-color);
}

.contact-label {
  font-size: var(--normal-font-size);
  color: var(--title-color);
}

.contact-input {
  width: 100%;
  background-color: var(--input-color);
  color: var(--text-color);
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  border: none;
  outline: none;
  resize: vertical;
  padding: 4px 8px 8px 0;
}

.contact-content.error .error-txt {
  display: block;
}

.error-txt {
  font-size: var(--normal-font-size);
  color: var(--error-color);
  display: none;
}

.footer {
  padding-top: 32px;
}

.footer-container {
  row-gap: 56px;
}

.footer-background {
  background-color: var(--first-color);
  padding: 32px 0 20px;
}

.footer-title {
  font-size: var(--h1-font-size);
  margin-bottom: var(--mb-0-25);
}

.footer-subtitle {
  font-size: var(--small-font-size);
}

.footer-links {
  display: flex;
  flex-direction: column;
  row-gap: 10px;
}

.footer-link:hover {
  color: var(--first-color-lighter);
}

.footer-social {
  font-size: 20px;
  margin-right: var(--mb-1-5);
}

.footer-social:hover {
  color: var(--first-color-lighter);
}

.footer-copyright {
  font-size: var(--smaller-font-size);
  text-align: center;
  color: var(--first-color-lighter);
  margin-top: var(--mb-3);
}

.footer-title,
.footer-subtitle,
.footer-link,
.footer-social,
.footer-copyright {
  color: white;
}

.scroll-up {
  position: fixed;
  right: 20px;
  bottom: -20%;
  background-color: var(--first-color);
  opacity: 0.8;
  padding: 0 5px;
  border-radius: 7px;
  z-index: var(--z-tooltip);
  transition: 0.2s;
}

.scroll-up:hover {
  background-color: var(--first-color-alt);
}

.scrollup-icon {
  font-size: 24px;
  color: white;
}

.show-scroll {
  bottom: 16px;
}

::-webkit-scrollbar {
  width: 10px;
  background-color: var(--scroll-bar-color);
  border-radius: 8px;
}

::-webkit-scrollbar-thumb {
  background-color: var(--scroll-bar-thumb-color);
  border-radius: 8px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-color-light);
}

@media screen and (max-width: 350px) {
  .container {
    margin-left: var(--mb-1);
    margin-right: var(--mb-1);
  }

  .nav-menu {
    padding: 32px 4px 64px;  
  }

  .nav-list {
    column-gap: 0;
  }

  .home-content {
    grid-template-columns: 0.25fr 3fr;
  }

  .home-image {
    width: 120px;
  }

  .skills-container {
    row-gap: 20px;
    column-gap: 10px;
    grid-template-columns: repeat(1, 1fr);
  }

  .projects-container {
    grid-template-columns: min-content;
    justify-content: center;
  }

  .experience-job {
    padding-left: 0px;
    padding-right: 0px;
  }

  .experience-image-container {
    padding-left: 0px;
  }

  .experience-image {
    width: 40px;
  }

  .experience-text {
    padding-left: 0px;
  }
}

@media screen and (max-width: 567px) {
  .projects-container {
    grid-template-columns: repeat(1, 1fr);
  }
      
  .skills-container {
    grid-template-columns: repeat(1, 1fr);
  }

  .section {
    scroll-margin-top: 70px;
  }

  .experience-job {
    padding-left: 15px;
    padding-right: 15px;
  }

  .experience-image-container {
    padding-left: 20px;
  }

  .experience-image {
    width: 45px;
  }

  .experience-text {
    padding-left: 20px;
  }
}

@media screen and (min-width: 568px) {
  .home-content {
    grid-template-columns: max-content 1fr 1fr;
  }

  .home-data {
    grid-column: initial;
  }

  .home-image {
    order: 1;
    justify-self: center;
  }

  .projects-container,
  .footer-container {
    grid-template-columns: repeat(2, 1fr);
  }  

  .skills-container {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    scroll-margin-top: 70px;
  }

  .experience-job {
    padding-left: 20px;
    padding-right: 20px;
  }

  .experience-image-container {
    padding-left: 20px;
  }

  .experience-image {
    width: 50px;
  }

  .experience-text {
    padding-left: 20px;
  }
}

@media screen and (min-width: 768px) {
  .container {
    margin-left: auto;
    margin-right: auto;
  }

  .section {
    padding: 96px 0 32px;
    scroll-margin-top: 40px;
  }

  .header {
    top: 0;
    bottom: initial;
  }

  .header,
  .main,
  .footer-container {
    padding: 0 16px;
  }

  .nav {
    height: calc(var(--header-height) + 24px);
    column-gap: 25px;
    padding: 0 30px;
  }

  .nav-icon,
  .nav-close,
  .nav-toggle {
    display: none;
  }

  .nav-list {
    display: flex;
    column-gap: 32px;
  }

  .change-theme {
    margin: 0;
  }

  .home-container {
    row-gap: 80px;
  }

  .home-content {
    padding-top: 20px;
    column-gap: 32px;
  }

  .home-image {
    width: 270px;
  }

  .about-container {
    column-gap: 80px;
    max-width: 600px;
  }

  .about-description {
    text-align: initial;
  }

  .about-info {
    justify-content: space-between;
  }

  .about-buttons {
    justify-content: center;
  }

  .experience-job {
    padding-left: 70px;
    padding-right: 70px;
  }

  .experience-image-container {
    padding-left: 30px;
  }

  .experience-image {
    width: 70px;
  }

  .experience-text {
    padding-left: 30px;
  }

  .projects-container {
    grid-template-columns: repeat(2, 1fr);
    justify-content: center;
  }
        
  .skills-container {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-container {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-links {
    flex-direction: column;
    column-gap: 32px;
  }

  .footer-socials {
    justify-content: flex-end;
  }

  .footer-copyright {
    margin-top: 72px;
  }
}

@media screen and (min-width: 1024px) {
  .header,
  .main {
    padding: 0;
  }

  .nav-buttons {
    margin-right: 30px;
  }

  .home-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
  }

  .home-image {
    width: 320px;
  }

  .home-content {
    max-width: 1000px;
    justify-content: center;
  }

  .home-social {
    margin: 0 60px 0;
  }

  .experience-container {
    max-width: 800px;
  }

  .projects-container {
    grid-template-columns: repeat(3, 300px);
  }

  .skills-container {
    grid-template-columns: repeat(4, 1fr);
    max-width: 900px;
  }

  .contact-input {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-container {
    max-width: 840px;
  }
  
  .footer-container {
    padding: 0 100px;
    max-width: 1200px;
  }
}