/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* Variables CSS */
:root {
  --header-height: 3.5rem;
  
  /* Colors */
  --first-color: #3b82f6;
  --first-color-alt: #2563eb;
  --title-color: #1f2937;
  --text-color: #6b7280;
  --text-color-light: #9ca3af;
  --body-color: #ffffff;
  --container-color: #ffffff;
  --border-color: #e5e7eb;
  --shadow-color: rgba(0, 0, 0, 0.1);
  
  /* Font and typography */
  --body-font: 'Poppins', sans-serif;
  --biggest-font-size: 2.5rem;
  --h1-font-size: 2.25rem;
  --h2-font-size: 1.5rem;
  --h3-font-size: 1.25rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;
  --smaller-font-size: 0.813rem;
  
  /* Font weight */
  --font-medium: 500;
  --font-semi-bold: 600;
  --font-bold: 700;
  
  /* Margins Bottom */
  --mb-0-25: 0.25rem;
  --mb-0-5: 0.5rem;
  --mb-0-75: 0.75rem;
  --mb-1: 1rem;
  --mb-1-25: 1.25rem;
  --mb-1-5: 1.5rem;
  --mb-2: 2rem;
  --mb-2-5: 2.5rem;
  
  /* z index */
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;
}

/* Responsive typography */
@media screen and (max-width: 992px) {
  :root {
    --biggest-font-size: 2rem;
    --h1-font-size: 1.5rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1rem;
    --normal-font-size: 0.938rem;
    --small-font-size: 0.813rem;
    --smaller-font-size: 0.75rem;
  }
}

/* Dark theme variables */
body.dark-theme {
  --title-color: #f9fafb;
  --text-color: #d1d5db;
  --text-color-light: #9ca3af;
  --body-color: #111827;
  --container-color: #1f2937;
  --border-color: #374151;
  --shadow-color: rgba(0, 0, 0, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0 0 var(--header-height) 0;
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  background-color: var(--body-color);
  color: var(--text-color);
  transition: background-color 0.4s, color 0.4s;
}

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;
}

button {
  cursor: pointer;
  border: none;
  outline: none;
}

/* Reusable CSS Classes */
.container {
  max-width: 1024px;
  margin-left: var(--mb-1-5);
  margin-right: var(--mb-1-5);
}

.grid {
  display: grid;
}

.section {
  padding: 6.5rem 0 2rem;
}

.section__title {
  text-align: center;
  font-size: var(--h1-font-size);
  margin-bottom: var(--mb-0-75);
}

.section__subtitle {
  display: block;
  text-align: center;
  font-size: var(--small-font-size);
  margin-bottom: var(--mb-2-5);
  color: var(--text-color-light);
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  column-gap: 0.5rem;
  background-color: var(--first-color);
  color: #fff;
  padding: 1rem 1.75rem;
  border-radius: 0.5rem;
  font-weight: var(--font-medium);
  transition: background-color 0.3s, transform 0.3s;
}

.button:hover {
  background-color: var(--first-color-alt);
  transform: translateY(-2px);
}

.button--ghost {
  background-color: transparent;
  border: 2px solid var(--first-color);
  color: var(--first-color);
}

.button--ghost:hover {
  background-color: var(--first-color);
  color: #fff;
}

.button--flex {
  display: inline-flex;
  align-items: center;
}

.button__icon {
  font-size: 1.25rem;
  margin-left: var(--mb-0-5);
  transition: transform 0.3s;
}

.button:hover .button__icon {
  transform: translateX(0.25rem);
}

/* Header */
.header {
  width: 100%;
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: var(--z-fixed);
  background-color: var(--body-color);
  box-shadow: 0 -1px 4px var(--shadow-color);
  transition: background-color 0.4s, box-shadow 0.4s;
}

.nav {
  max-width: 968px;
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  color: var(--title-color);
  font-weight: var(--font-medium);
}

.logo-text {
  font-size: var(--h3-font-size);
  font-weight: var(--font-bold);
  background: linear-gradient(45deg, var(--first-color), var(--first-color-alt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__menu {
  position: fixed;
  bottom: -100%;
  left: 0;
  width: 100%;
  background-color: var(--body-color);
  padding: 2rem 1.5rem 4rem;
  box-shadow: 0 -1px 4px var(--shadow-color);
  border-radius: 1.5rem 1.5rem 0 0;
  transition: bottom 0.3s;
}

.nav__list {
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.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);
  transition: color 0.3s;
}

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

.nav__icon {
  font-size: 1.2rem;
}

.nav__close {
  position: absolute;
  right: 1.3rem;
  bottom: 0.5rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--first-color);
}

.nav__close:hover {
  color: var(--first-color-alt);
}

.nav__actions {
  display: flex;
  align-items: center;
  column-gap: 1rem;
}

.nav__theme {
  font-size: 1.25rem;
  color: var(--title-color);
  cursor: pointer;
  transition: color 0.3s;
}

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

.nav__toggle {
  font-size: 1.1rem;
  cursor: pointer;
}

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

/* Show menu */
.show-menu {
  bottom: 0;
}

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

/* Change background header */
.scroll-header {
  box-shadow: 0 -1px 4px var(--shadow-color);
}

/* Home */
.home {
  position: relative;
}

.home__container {
  gap: 3rem;
}

.home__data {
  grid-area: 1 / 1 / 2 / 3;
  padding-top: 3.5rem;
}

.home__title {
  font-size: var(--biggest-font-size);
  margin-bottom: var(--mb-0-75);
}

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

.home__profession {
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-1);
  color: var(--text-color-light);
}

.home__description {
  max-width: 400px;
  margin-bottom: var(--mb-2);
  line-height: 1.6;
}

.home__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: var(--mb-2);
}

.home__image {
  grid-area: 1 / 2 / 2 / 3;
  justify-self: center;
}

.home__blob {
  width: 200px;
  fill: var(--first-color);
  position: relative;
}

.home__img {
  width: 170px;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.home__social {
  display: grid;
  grid-template-columns: max-content;
  row-gap: 1rem;
  position: absolute;
  top: 0;
  left: 0;
}

.home__social-link {
  width: max-content;
  background-color: var(--container-color);
  color: var(--first-color);
  padding: 0.5rem;
  border-radius: 0.5rem;
  display: flex;
  font-size: 1.25rem;
  box-shadow: 0 4px 12px var(--shadow-color);
  transition: background-color 0.3s, transform 0.3s;
}

.home__social-link:hover {
  background-color: var(--first-color);
  color: #fff;
  transform: translateY(-2px);
}

.home__scroll {
  display: none;
}

.home__scroll-button {
  color: var(--first-color);
  transition: transform 0.3s;
}

.home__scroll-button:hover {
  transform: translateY(0.25rem);
}

.home__scroll-name {
  font-size: var(--small-font-size);
  color: var(--title-color);
  font-weight: var(--font-medium);
  margin-right: var(--mb-0-25);
}

.home__scroll-arrow {
  font-size: 1.25rem;
}

/* About */
.about__container {
  row-gap: 2.5rem;
}

.about__data {
  text-align: center;
}

.about__info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: var(--mb-2);
}

.about__box {
  background-color: var(--container-color);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  text-align: center;
  padding: 1rem 1.25rem;
  transition: transform 0.3s, box-shadow 0.3s;
}

.about__box:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px var(--shadow-color);
}

.about__icon {
  font-size: 1.5rem;
  color: var(--first-color);
  margin-bottom: var(--mb-0-5);
}

.about__title {
  font-size: var(--small-font-size);
  font-weight: var(--font-medium);
}

.about__subtitle {
  font-size: var(--smaller-font-size);
}

.about__description {
  padding: 0 4rem 0 0;
  margin-bottom: var(--mb-2-5);
  line-height: 1.6;
}

/* Skills */
.skills__container {
  row-gap: 0;
}

.skills__content {
  background-color: var(--container-color);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 1.25rem;
  margin-bottom: var(--mb-2);
  transition: transform 0.3s, box-shadow 0.3s;
}

.skills__content:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px var(--shadow-color);
}

.skills__title {
  font-size: var(--normal-font-size);
  font-weight: var(--font-medium);
  color: var(--first-color);
  text-align: center;
  margin-bottom: var(--mb-1-5);
}

.skills__box {
  display: flex;
  justify-content: center;
  column-gap: 2.5rem;
}

.skills__group {
  display: grid;
  align-content: flex-start;
  row-gap: 1rem;
}

.skills__data {
  display: flex;
  column-gap: 0.5rem;
}

.skills__data i {
  font-size: 1rem;
  color: var(--first-color);
}

.skills__name {
  font-size: var(--normal-font-size);
  font-weight: var(--font-medium);
  line-height: 18px;
}

.skills__level {
  font-size: var(--smaller-font-size);
}

/* Experience */
.experience__tabs {
  display: flex;
  justify-content: space-evenly;
  margin-bottom: var(--mb-2);
}

.experience__button {
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
  cursor: pointer;
  padding: 1rem;
  border-radius: 0.5rem;
  transition: background-color 0.3s, color 0.3s;
}

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

.experience__icon {
  font-size: 1.8rem;
  margin-right: var(--mb-0-25);
}

.experience__data {
  display: grid;
  grid-template-columns: 1fr max-content 1fr;
  column-gap: 1.5rem;
}

.experience__title {
  font-size: var(--normal-font-size);
  font-weight: var(--font-medium);
}

.experience__subtitle {
  display: inline-block;
  font-size: var(--small-font-size);
  margin-bottom: var(--mb-1);
}

.experience__calendar {
  font-size: var(--smaller-font-size);
  color: var(--text-color-light);
}

.experience__rounder {
  display: inline-block;
  width: 13px;
  height: 13px;
  background-color: var(--first-color);
  border-radius: 50%;
}

.experience__line {
  display: block;
  width: 1px;
  height: 48px;
  background-color: var(--first-color);
  transform: translate(6px, -7px);
}

.experience__content {
  display: none;
}

.experience__active {
  display: block;
}

.experience__button.experience__active {
  color: var(--first-color);
  background-color: var(--container-color);
}

/* Projects */
.projects__container {
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.projects__card {
  background-color: var(--container-color);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.projects__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px var(--shadow-color);
}

.projects__img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.3s;
}

.projects__card:hover .projects__img {
  transform: scale(1.1);
}

.projects__data {
  padding: 1.5rem;
}

.projects__title {
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-0-5);
}

.projects__description {
  margin-bottom: var(--mb-1);
  line-height: 1.5;
}

.projects__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--mb-1);
}

.projects__stack-item {
  background-color: var(--first-color);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: var(--smaller-font-size);
  font-weight: var(--font-medium);
}

.projects__links {
  display: flex;
  justify-content: space-between;
}

.projects__link {
  display: inline-flex;
  align-items: center;
  column-gap: 0.25rem;
  color: var(--first-color);
  font-size: var(--small-font-size);
  transition: color 0.3s, transform 0.3s;
}

.projects__link:hover {
  color: var(--first-color-alt);
  transform: translateX(0.25rem);
}

.projects__link i {
  font-size: 1rem;
  transition: transform 0.3s;
}

.projects__link:hover i {
  transform: translateX(0.25rem);
}

/* Contact */
.contact__container {
  row-gap: 3rem;
}

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

.contact__info {
  display: grid;
  row-gap: 1rem;
  grid-template-columns: 300px;
}

.contact__card {
  background-color: var(--container-color);
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: 0.75rem;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.contact__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px var(--shadow-color);
}

.contact__card-icon {
  font-size: 2rem;
  color: var(--first-color);
  margin-bottom: var(--mb-0-25);
}

.contact__card-title {
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-0-5);
}

.contact__card-data {
  display: block;
  margin-bottom: var(--mb-0-75);
}

.contact__button {
  color: var(--first-color);
  font-size: var(--small-font-size);
  display: flex;
  align-items: center;
  justify-content: center;
  column-gap: 0.25rem;
  transition: color 0.3s, transform 0.3s;
}

.contact__button:hover {
  color: var(--first-color-alt);
  transform: translateX(0.25rem);
}

.contact__button-icon {
  font-size: 1rem;
  transition: transform 0.3s;
}

.contact__button:hover .contact__button-icon {
  transform: translateX(0.25rem);
}

.contact__form-div {
  position: relative;
  margin-bottom: var(--mb-2);
  height: 4rem;
}

.contact__form-area {
  height: 7rem;
}

.contact__form-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 2px solid var(--border-color);
  background: none;
  color: var(--text-color);
  outline: none;
  border-radius: 0.75rem;
  padding: 1.5rem;
  z-index: 1;
  transition: border-color 0.3s;
}

.contact__form-input:focus {
  border-color: var(--first-color);
}

.contact__form-tag {
  position: absolute;
  top: -0.75rem;
  left: 1.25rem;
  font-size: var(--smaller-font-size);
  padding: 0.25rem;
  background-color: var(--body-color);
  z-index: 10;
  color: var(--title-color);
}

.contact__form textarea {
  resize: none;
}

.contact__title {
  text-align: center;
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-1-5);
}

.contact__message {
  margin-top: var(--mb-1);
  padding: 0.75rem;
  border-radius: 0.5rem;
  text-align: center;
  font-weight: var(--font-medium);
  display: none;
}

.contact__message.success {
  background-color: #d1fae5;
  color: #065f46;
  display: block;
}

.contact__message.error {
  background-color: #fee2e2;
  color: #991b1b;
  display: block;
}

/* Footer */
.footer {
  padding-top: 2rem;
}

.footer__container {
  row-gap: 3.5rem;
}

.footer__bg {
  background-color: var(--first-color-second);
  padding: 2rem 0 3rem;
}

.footer__title {
  font-size: var(--h1-font-size);
  margin-bottom: var(--mb-0-25);
  text-align: center;
}

.footer__subtitle {
  font-size: var(--small-font-size);
  text-align: center;
}

.footer__list {
  display: flex;
  justify-content: center;
  column-gap: 2rem;
  margin-bottom: var(--mb-2);
}

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

.footer__social {
  display: flex;
  justify-content: center;
  column-gap: 1.25rem;
}

.footer__social-link {
  background-color: var(--first-color);
  color: #fff;
  padding: 0.5rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  display: inline-flex;
  transition: background-color 0.3s, transform 0.3s;
}

.footer__social-link:hover {
  background-color: var(--first-color-alt);
  transform: translateY(-2px);
}

.footer__copy {
  font-size: var(--smaller-font-size);
  text-align: center;
  color: var(--text-color-light);
  margin-top: var(--mb-2);
}

/* Scroll up */
.scrollup {
  position: fixed;
  right: 1rem;
  bottom: -20%;
  background-color: var(--first-color);
  opacity: 0.8;
  padding: 0.3rem;
  border-radius: 0.4rem;
  z-index: var(--z-tooltip);
  transition: bottom 0.3s, background-color 0.3s, transform 0.3s;
}

.scrollup:hover {
  background-color: var(--first-color-alt);
  transform: translateY(-2px);
}

.scrollup__icon {
  font-size: 1.5rem;
  color: #fff;
}

.show-scroll {
  bottom: 5rem;
}

/* Scroll bar */
::-webkit-scrollbar {
  width: 0.60rem;
  background-color: var(--scroll-bar-color);
  border-radius: 0.5rem;
}

::-webkit-scrollbar-thumb {
  background-color: var(--scroll-thumb-color);
  border-radius: 0.5rem;
}

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

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Media Queries */
@media screen and (max-width: 350px) {
  .container {
    margin-left: var(--mb-1);
    margin-right: var(--mb-1);
  }
  
  .nav__menu {
    padding: 2rem 0.25rem 4rem;
  }
  
  .nav__list {
    column-gap: 0;
  }
  
  .home__buttons {
    flex-direction: column;
  }
  
  .about__info {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .about__description {
    padding: 0;
  }
  
  .experience__data {
    gap: 0.5rem;
  }
  
  .projects__container {
    grid-template-columns: max-content;
    justify-content: center;
  }
  
  .projects__content {
    padding-right: 3.5rem;
  }
  
  .projects__modal {
    padding: 0 0.5rem;
  }
  
  .contact__info {
    grid-template-columns: 1fr;
  }
  
  .contact__form {
    width: 360px;
  }
}

@media screen and (min-width: 568px) {
  .home__content {
    grid-template-columns: max-content 1fr 1fr;
  }
  
  .home__data {
    grid-column: initial;
  }
  
  .home__img {
    order: 1;
    justify-self: center;
  }
  
  .about__container,
  .skills__container,
  .projects__container,
  .contact__container,
  .footer__container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .experience__sections {
    display: grid;
    grid-template-columns: 0.6fr;
    justify-content: center;
  }
}

@media screen and (min-width: 768px) {
  .container {
    margin-left: auto;
    margin-right: auto;
  }
  
  body {
    margin: 0;
  }
  
  .section {
    padding: 6rem 0 2rem;
  }
  
  .section__subtitle {
    margin-bottom: 4rem;
  }
  
  .header {
    top: 0;
    bottom: initial;
  }
  
  .header,
  .main,
  .footer__container {
    padding: 0 1rem;
  }
  
  .nav {
    height: calc(var(--header-height) + 1.5rem);
    column-gap: 1rem;
  }
  
  .nav__icon,
  .nav__close,
  .nav__toggle {
    display: none;
  }
  
  .nav__list {
    display: flex;
    column-gap: 2rem;
  }
  
  .nav__menu {
    margin-left: auto;
  }
  
  .change-theme {
    margin: 0;
  }
  
  .home__container {
    row-gap: 5rem;
  }
  
  .home__content {
    padding-top: 5.5rem;
    column-gap: 2rem;
  }
  
  .home__blob {
    width: 270px;
  }
  
  .home__scroll {
    display: block;
  }
  
  .home__scroll-button {
    margin-left: 3rem;
  }
  
  .about__container {
    column-gap: 5rem;
  }
  
  .about__img {
    width: 350px;
  }
  
  .about__description {
    text-align: initial;
  }
  
  .about__info {
    justify-content: space-between;
  }
  
  .about__buttons {
    justify-content: initial;
  }
  
  .experience__tabs {
    justify-content: center;
  }
  
  .experience__button {
    margin: 0 var(--mb-1);
  }
  
  .experience__sections {
    grid-template-columns: 0.5fr;
  }
  
  .projects__container {
    grid-template-columns: repeat(3, 218px);
    justify-content: center;
  }
  
  .projects__icon {
    font-size: 2rem;
  }
  
  .projects__content {
    padding: 6rem 0 2rem 2.5rem;
  }
  
  .projects__modal-content {
    width: 450px;
  }
  
  .contact__form {
    width: 460px;
  }
  
  .contact__inputs {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (min-width: 1024px) {
  .header,
  .main,
  .footer__container {
    padding: 0;
  }
  
  .home__blob {
    width: 320px;
  }
  
  .home__social {
    transform: translateX(-6rem);
  }
  
  .projects__container {
    grid-template-columns: repeat(3, 238px);
  }
  
  .contact__form {
    width: 460px;
  }
  
  .contact__inputs {
    grid-template-columns: repeat(2, 1fr);
  }
}