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

html {
  scroll-behavior: smooth;
}

:root {
  --body-font: "Poppins", sans-serif;
  --second-font: "Montserrat", sans-serif;

  --header-height: 6rem;

  --weight-300: 300;
  --weight-400: 400;
  --weight-500: 500;
  --weight-600: 600;
  --weight-700: 700;
  --weight-900: 900;

  --big-font-size: clamp(2rem, 0.9706rem + 4.7059vw, 4.5rem);
  --h1-font-size: clamp(1.75rem, 0.9265rem + 3.7647vw, 3.75rem);
  --h2-font-size: 1.75rem;
  --h3-font-size: 1.5rem;
  --normal-font-size: 1.125rem;
  --small-font-size: 1rem;
  --smaller-font-size: 0.875rem;

  --body-color: hsl(0, 0%, 6%);
  --border-color: hsl(0, 0%, 100%, 0.2);
  --container-color: hsl(0, 0%, 10%);
  --first-color: hsl(265, 85%, 62%);
  --mint: hsl(109 25% 71%);
  --orange-strong: hsl(33, 100%, 50%);
  --orange: hsl(25 91% 71%);
  --text-color: hsl(0, 0%, 77%);
  --title-color: hsl(0, 0%, 100%);

  --transition: cubic-bezier(0.05, 0.2, 0.1, 1);

  --border-radius: 0.5rem;

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

body,
input,
textarea {
  color: var(--text-color);
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  font-weight: var(--weight-300);
}

body {
  background-color: var(--body-color);
}

h1,
h2,
h3 {
  color: var(--title-color);
  font-weight: var(--weight-700);
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

p {
  line-height: 1.67em;
}

img {
  max-width: 100%;
}

input,
textarea {
  background-color: transparent;
  border: none;
  outline: none;
}

/* Reusable classes */

.container {
  margin-inline: auto;
  max-width: 1260px;
  padding-inline: 0.75rem;
}

.grid {
  display: grid;
  gap: 1.75rem;
}

.section {
  padding-block: 8rem;
}

.section-title {
  font-size: var(--h1-font-size);
  margin-bottom: 1rem;
}

section:not(.about):not(.contact) .section-title,
section:not(.about):not(.contact) .section-description {
  text-align: center;
}

.section-description {
  margin-bottom: 3.75rem;
  margin-inline: auto;
  max-width: 600px;
}

.btn {
  background-color: var(--first-color);
  border: 2px solid var(--first-color);
  border-radius: var(--radius);
  color: var(--title-color);
  cursor: pointer;
  display: inline-block;
  font-size: var(--small-font-size);
  font-weight: var(--weight-500);
  letter-spacing: 2px;
  padding: 1rem 2.5rem;
  transition: all 0.3s var(--transition);
}

.btn:hover {
  background-color: transparent;
  color: var(--first-color);
}

/* Header */

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

.nav,
.nav-list,
.nav-socials {
  display: flex;
}

.nav {
  align-items: center;
  column-gap: 3.5rem;
  height: calc(var(--header-height) + 1.5rem);
  justify-content: space-between;
}

.nav-logo {
  color: var(--title-color);
  font-size: 2.2rem;
  font-weight: var(--weight-700);
}

.nav-logo span {
  color: var(--first-color);
}

.nav-list {
  column-gap: 2rem;
}

.nav-link,
.nav-social-link {
  color: var(--title-color);
  font-size: var(--small-font-size);
  transition: all 0.3s var(--transition);
}

.nav-link {
  font-weight: var(--weight-500);
}

.nav-socials {
  column-gap: 1.5rem;
  margin-left: auto;
}

.nav-social-link:hover {
  color: var(--first-color);
  transform: translateY(-0.25rem);
}

.nav-link-btn {
  background-color: transparent;
  border-color: var(--border-color);
  font-size: var(--smaller-font-size);
  padding: 0.625rem 1.25rem;
}

.nav-link-btn:hover {
  background-color: var(--first-color);
  border-color: var(--first-color);
  color: var(--title-color);
}

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

/* Active link */
.active-link,
.nav-link:hover {
  color: var(--first-color);
}

/* Change background header */
.scroll-header {
  animation: slide-down 0.7s;
  background-color: var(--container-color);
  box-shadow: 0 0 10px hsla(0, 0%, 0% 0.25);
  position: fixed;
}

@keyframes slide-down {
  0% {
    transform: translateY(-100%);
  }

  100% {
    transform: translateY(0);
  }
}

.scroll-header .nav {
  height: var(--header-height);
}

/* Home */

.home {
  padding-block: 16rem 9rem;
}

.home-container {
  align-items: center;
  grid-template-columns: 7fr 5fr;
}

.home-subtitle {
  display: block;
  font-size: var(--small-font-size);
  font-weight: var(--weight-400);
  letter-spacing: 0.25rem;
  margin-bottom: 1.25rem;
}

.home-title {
  font-family: var(--second-font);
  font-size: var(--big-font-size);
  font-weight: var(--weight-900);
}

.home-title span {
  color: var(--first-color);
}

.profile-photo {
  width: 425px;
  aspect-ratio: 1 / 1;
  height: auto;

  object-fit: cover;
  object-position: center top;

  border: 0.5rem solid var(--container-color);
  border-radius: 50%;
  margin-left: auto;
  opacity: 0.9;
}

/* About */
.about {
  background-color: var(--container-color);
}

.about-container {
  align-items: center;
  column-gap: 4rem;
  grid-template-columns: 5fr 7fr;
}

.about-img {
  border-radius: 30px;
  height: 790px;
  opacity: 0.6;
  width: 100%;
}

.about-description {
  margin-bottom: 2rem;
}

.tabs-buttons {
  column-gap: 2.5rem;
  display: flex;
  margin-bottom: 1.25rem;
}

.tabs-button,
.tabs-description span:first-child {
  font-weight: var(--weight-500);
}

.tabs-button {
  color: var(--title-color);
  cursor: pointer;
  padding-bottom: 0.5rem;
  position: relative;
}

.tabs-button::after {
  background-color: var(--text-color);
  bottom: 0;
  content: "";
  height: 2px;
  left: 0;
  position: absolute;
  transition: all 0.3s var(--transition);
  width: 30%;
}

.tabs-data {
  row-gap: 1rem;
}

.tabs-description span:last-child {
  display: block;
}

/* Active tab */

.tabs-button.tab-active {
  color: var(--first-color);
}

.tabs-button.tab-active::after {
  background-color: var(--first-color);
  width: 100%;
}

.tabs-item[data-content] {
  display: none;
}

.tab-active[data-content] {
  display: block;
}

/* Services */

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

.services-item {
  background-color: var(--container-color);
  border-radius: var(--radius);
  padding: 3.5rem 2.5rem;
}

.services-item:hover {
  background: var(--border-color);
  border-radius: 15px;
  transform: translateY(-3px) scale(1.1);
}

.services-icon {
  color: var(--first-color);
  font-size: 3.25rem;
  line-height: 1;
}

.services-title {
  font-size: var(--h3-font-size);
  font-weight: var(--weight-500);
  margin-block: 1.75rem 1.25rem;
}

.services-description {
  font-weight: var(--weight-400);
}

/* Projects */

.portfolio-section {
  background-color: var(--container-color);
}

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

.portfolio-item {
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.portfolio-data,
.portfolio-item::after {
  position: absolute;
  transition: all 0.65s var(--transition);
}

.portfolio-item::after {
  background: linear-gradient(180deg, transparent, var(--orange));
  content: "";
  inset: 0;
  opacity: 0;
}

.portfolio-img {
  border-radius: 10px;
  height: 320px;
  opacity: 0.5;
  transition: all 1s var(--transition);
  vertical-align: middle;
  width: 100%;
}

.portfolio-data {
  bottom: 1.25rem;
  inset-inline: 2rem;
  text-align: center;
  z-index: var(--z-tooltip);
}

.portfolio-description,
.portfolio-subtitle {
  color: var(--container-color);
  opacity: 1;
}

.portfolio-title {
  color: var(--orange-strong);
  font-size: var(--h2-font-size);
  font-weight: var(--weight-900);
  opacity: 1;
}

.portfolio-subtitle {
  font-size: var(--normal-font-size);
  font-weight: var(--weight-700);
}

.portfolio-description {
  display: none;
  font-weight: var(--weight-400);
}

/* Work hover */
.portfolio-item:hover::after {
  opacity: 1;
}

.portfolio-item:hover .portfolio-img {
  transform: scale(1.1);
}

.portfolio-item:hover .portfolio-description {
  display: block;
}

.portfolio-item:hover .portfolio-data {
  transform: translateY(-2rem);
}

/* Contact */
.contact-container {
  align-items: center;
  column-gap: 4rem;
  grid-template-columns: repeat(2, 1fr);
}

.contact-description,
.contact-input {
  font-weight: var(--weight-400);
}

.contact-description {
  margin-bottom: 3rem;
}

.contact-description a {
  color: var(--title-color);
  font-weight: var(--weight-500);
}

.contact-form {
  position: relative;
}

.contact-input {
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  font-size: var(--smaller-font-size);
  margin-bottom: 1.25rem;
  padding: 0.8rem 1.25rem;
  width: 100%;
}

.textarea {
  height: 120px;
  resize: none;
}

.error-message {
  bottom: -12%;
  font-size: var(--small-font-size);
  font-weight: var(--weight-400);
  left: 0;
  position: absolute;
}

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

/* Footer */
.footer {
  background-color: var(--container-color);
  padding-block: 2rem;
}

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

.footer-logo {
  color: var(--title-color);
  font-size: 2.5rem;
  font-weight: var(--weight-700);
}

.footer-logo span {
  color: var(--first-color);
}

.footer-socials {
  display: flex;
  justify-content: center;
  column-gap: 0.75rem;
}

.footer-social-link {
  border: 2px solid var(--text-color);
  border-radius: 50%;
  color: var(--text-color);
  display: grid;
  font-size: var(--small-font-size);
  height: 46px;
  place-items: center;
  transition: all 0.3s var(--transition);
  width: 46px;
}

.footer-social-link:hover {
  background-color: var(--first-color);
  border-color: var(--first-color);
}

.footer-copyright {
  font-size: var(--small-font-size);
  font-weight: var(--weight-400);
  justify-self: flex-end;
}

/* Scroll up */
.scrollup {
  background-color: var(--title-color);
  border-radius: 50%;
  bottom: -100%;
  display: grid;
  height: 50px;
  place-items: center;
  position: fixed;
  right: 1rem;
  transition: all 0.4s var(--transition);
  width: 50px;
  z-index: var(--z-fixed);
}

.scrollup--icon {
  color: var(--first-color);
  font-size: 2.25rem;
  line-height: 1;
}

/* Show scrollup */
.show-scroll {
  bottom: 3rem;
}

/* Responsive typography */
@media (max-width: 992px) {
  :root {
    --h2-font-size: 1.5rem;
    --h3-font-size: 1.25rem;
    --header-height: 5rem;
    --normal-font-size: 1rem;
    --small-font-size: 0.9375rem;
    --smaller-font-size: 0.813rem;
  }
}

@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }

  .nav-btns {
    display: none;
  }

  .home {
    padding-top: 11rem;
  }

  .home-container,
  .about-container {
    grid-template-columns: 1fr;
  }

  .home-container {
    row-gap: 2rem;
  }

  .home-content {
    order: 1;
  }

  .profile-photo,
  .about-img {
    margin-inline: auto;
  }

  .profile-photo {
    border: 0.5rem solid var(--container-color);
    height: 380px;
    width: 380px;
  }

  .about-container {
    row-gap: 2.5rem;
  }

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

  .contact-container {
    column-gap: 2rem;
  }
}

@media (max-width: 992px) {
  .container {
    max-width: 720px;
  }

  .nav {
    height: var(--header-height);
    column-gap: 1.25rem;
  }

  .nav-logo {
    font-size: 2rem;
  }

  .nav-btns,
  .nav-toggle,
  .nav-close {
    display: block;
  }

  .nav-link-btn {
    display: none;
  }

  .nav-menu {
    background-color: var(--container-color);
    height: 100vh;
    padding: 3.5rem;
    position: fixed;
    right: -100%;
    top: 0;
    transition: all 0.8s var(--transition);
    width: 60vw;
  }

  .show-menu {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    row-gap: 1.125rem;
  }

  .nav-close {
    font-size: 1.5rem;
    position: absolute;
    right: 1rem;
    top: 1rem;
  }

  .nav-socials {
    column-gap: 1rem;
  }

  .nav-toggle {
    font-size: var(--h2-font-size);
  }

  .nav-close,
  .nav-toggle {
    cursor: pointer;
  }

  .home {
    padding-top: 9rem;
  }

  .profile-photo {
    height: 320px;
    width: 320px;
  }

  .services-icon {
    font-size: 2.5rem;
  }

  .services-title {
    margin-block: 1.5rem 1rem;
  }

  .contact-container {
    grid-template-columns: 1fr;
    rotate: 2rem;
  }

  .contact-content {
    order: 1;
  }

  .contact-description {
    margin-bottom: 2rem;
  }

  .footer-social-link {
    font-size: var(--smaller-font-size);
    height: 36px;
    width: 36px;
  }

  .scrollup {
    height: 42px;
    width: 42px;
  }

  .scrollup-icon {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .container {
    max-width: 540px;
  }

  .profile-photo {
    height: 280px;
    width: 280px;
  }

  .tabs-buttons {
    column-gap: 1.5rem;
    flex-wrap: wrap;
    row-gap: 0.75rem;
  }

  .services-container,
  .portfolio-container,
  .footer-container {
    grid-template-columns: 1fr;
  }

  .footer-container {
    justify-items: center;
    row-gap: 1.5rem;
  }

  .footer-copyright {
    justify-self: center;
  }
}

@media (max-width: 576px) {
  .nav-menu {
    padding: 2.75rem;
    width: 100vw;
  }

  .profile-photo {
    height: 260px;
    width: 260px;
  }

  .services-item {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 350px) {
  .profile-photo {
    height: 240px;
    width: 240px;
  }

  .tabs-description span:last-child {
    display: inline;
  }

  .portfolio-data {
    bottom: 1rem;
    inset-inline: 1rem;
  }
}