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

:root {
  --header-height: 3rem;
  --hue-color: 250;

  --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%, 15%);
  --text-color: hsl(var(--hue-color), 8%, 45%);
  --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: #fff;
  --scroll-bar-color: hsl(var(--hue-color), 12%, 90%);
  --scroll-thumb-color: hsl(var(--hue-color), 12%, 80%);

  --body-font: "Poppins", sans-serif;
  --big-font-size: 2rem;
  --h1-font-size: 1.5rem;
  --h2-font-size: 1.25rem;
  --h3-font-size: 1.125rem;
  --normal-font-size: 0.938rem;
  --small-font-size: 0.813rem;
  --smaller-font-size: 0.75rem;

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

  --mb-0-25: 0.25rem;
  --mb-0-5: 0.5rem;
  --mb-0-75: 0.75rem;
  --mb-1: 1rem;
  --mb-1-5: 1.5rem;
  --mb-2: 2rem;
  --mb-2-5: 2.5rem;
  --mb-3: 3rem;

  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;
}

@media screen and (min-width: 968px) {
  :root {
    --big-font-size: 3rem;
    --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;
  }
}

/* ===== DARK THEME ===== */
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%, 12%);
  --container-color: hsl(var(--hue-color), 29%, 16%);
}

/* ===== 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 0.3s ease, color 0.3s ease;
}

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; }

/* ===== REUSABLE ===== */
.section {
  padding: 2rem 0 4rem;
}

.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;
}

/* ===== LAYOUT ===== */
.container {
  max-width: 768px;
  margin-left: var(--mb-1-5);
  margin-right: var(--mb-1-5);
}

.grid {
  display: grid;
  gap: 1.5rem;
}

/* ===== HEADER & NAV ===== */
.header {
  width: 100%;
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: var(--z-fixed);
  background-color: var(--body-color);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

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

.nav {
  max-width: 968px;
  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-logo:hover,
.nav-toggle:hover {
  color: var(--first-color);
}

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

@media screen and (max-width: 767px) {
  .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 rgba(0, 0, 0, 0.15);
    border-radius: 1.5rem 1.5rem 0 0;
    transition: bottom 0.3s ease;
  }
}

.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);
}

.show-menu {
  bottom: 0;
}

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

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

.change-theme {
  font-size: 1.25rem;
  color: var(--title-color);
  margin-right: var(--mb-1);
  cursor: pointer;
  transition: color 0.3s;
}

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

/* ===== HOME ===== */
.home-container {
  gap: 1rem;
}

.home-content {
  grid-template-columns: 0.5fr 3fr;
  padding-top: 3.5rem;
  align-items: center;
}

.home-social {
  display: grid;
  grid-template-columns: max-content;
  row-gap: 1rem;
}

.home-social-icon {
  font-size: 1.25rem;
  color: var(--first-color);
  transition: color 0.3s;
}

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

.home-blob {
  width: 200px;
  fill: var(--first-color);
}

.home-blob-img {
  width: 240px;
}

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

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

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

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

.home-scroll-mouse {
  margin-right: 0.125rem;
  width: 24px;
}

.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: 1rem;
}

/* ===== BUTTONS ===== */
.button {
  display: inline-block;
  background-color: var(--first-color);
  color: #fff;
  padding: 1rem;
  border-radius: 0.5rem;
  font-weight: var(--font-medium);
  transition: background-color 0.3s;
}

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

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

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

.button-small {
  padding: 0.75rem 1rem;
}

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

.button-white:hover {
  background-color: #f1f1f1;
}

.button-link {
  padding: 0;
  background-color: transparent;
  color: var(--first-color-alt);
}

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

/* ===== ABOUT ===== */
.about-img {
  width: 200px;
  justify-self: center;
  filter: drop-shadow(1px 1px 4px var(--first-color-lighter));
  transition: filter 0.3s;
}

.about-img:hover {
  filter: drop-shadow(2px 2px 8px var(--first-color-lighter));
}

.about-description {
  text-align: center;
  margin-bottom: var(--mb-2-5);
}

.about-info {
  display: flex;
  justify-content: space-evenly;
  margin-bottom: var(--mb-2-5);
}

.about-info-title {
  font-size: var(--h2-font-size);
  font-weight: var(--font-semi-bold);
  color: var(--first-color);
}

.about-info-name {
  font-size: var(--smaller-font-size);
}

.about-info-title,
.about-info-name {
  display: block;
  text-align: center;
}

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

/* ===== SKILLS ===== */
.skills-content {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.skills-name {
  padding: 0.6rem 1.1rem;
  font-size: var(--small-font-size);
  background: var(--first-color-lighter);
  border-radius: 0.4rem;
  font-weight: var(--font-semi-bold);
  color: var(--first-color-alt);
  cursor: default;
  transition: background-color 0.3s, color 0.3s, transform 0.2s;
}

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

/* ===== QUALIFICATION ===== */
.qualification-tabs {
  display: flex;
  justify-content: space-evenly;
  margin-bottom: var(--mb-2);
}

.qualification-button {
  font-size: var(--small-font-size);
  font-weight: var(--font-medium);
  cursor: pointer;
  color: var(--text-color);
  transition: color 0.3s;
}

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

.qualification-icon {
  font-size: 1.25rem;
  margin-right: var(--mb-0-25);
}

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

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

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

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

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

.qualification-line {
  display: block;
  width: 1px;
  height: 100%;
  background-color: var(--first-color);
  transform: translate(6px, -7px);
}

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

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

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

/* ===== SERVICES ===== */
.services-container {
  gap: 1.5rem;
  grid-template-columns: repeat(2, 1fr);
}

.services-content {
  position: relative;
  background-color: var(--container-color);
  padding: 3.5rem 0.5rem 1.25rem 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s, transform 0.3s;
}

.services-content:hover {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
  transform: translateY(-3px);
}

.services-icon {
  display: block;
  font-size: 1.5rem;
  color: var(--first-color);
  margin-bottom: var(--mb-1);
}

.services-title {
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-1);
  font-weight: var(--font-medium);
}

.services-button {
  cursor: pointer;
  font-size: var(--small-font-size);
}

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

.services-box {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.services-box-content {
  position: relative;
  background-color: var(--container-color);
  padding: 1.5rem;
  border-radius: 0.5rem;
}

.services-box-services {
  row-gap: 1rem;
}

.services-box-list {
  display: flex;
}

.services-box-title {
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-1-5);
}

.services-box-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  color: var(--first-color);
  cursor: pointer;
  transition: color 0.3s;
}

.services-box-close:hover {
  color: var(--first-color-alt);
}

.services-list-icon {
  color: var(--first-color);
  margin-top: 0.25rem;
  margin-right: var(--mb-0-25);
}

.active-box {
  opacity: 1;
  visibility: visible;
}

/* ===== PORTFOLIO ===== */
.portfolio-container {
  overflow: initial;
}

.portfolio-content {
  padding: 0 1.5rem;
}

.portfolio-img {
  width: 265px;
  border-radius: 0.5rem;
  justify-self: center;
  transition: transform 0.3s;
}

.portfolio-img:hover {
  transform: scale(1.03);
}

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

.portfolio-description {
  margin-bottom: var(--mb-0-75);
}

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

/* ===== SWIPER ===== */
.swiper-button-prev::after,
.swiper-button-next::after {
  content: "";
}

.swiper-icon {
  font-size: 1.25rem;
  color: var(--first-color);
}

.swiper-button-prev {
  left: -0.5rem;
}

.swiper-button-next {
  right: -0.5rem;
}

.swiper-container-horizontal > .swiper-pagination-bullets {
  bottom: -2.5rem;
}

.swiper-angles {
  position: relative;
  bottom: 170px;
}

/* ===== CONTACT ===== */
.contact-container {
  row-gap: 3rem;
}

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

.contact-icon {
  font-size: 1.5rem;
  color: var(--first-color);
  margin-right: var(--mb-0-75);
  margin-top: 15px;
}

.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);
  transition: color 0.3s;
}

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

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

.footer-container {
  row-gap: 3.5rem;
}

.footer-bg {
  background-color: var(--first-color-second);
  padding: 2rem 0 3rem;
  transition: background-color 0.3s ease;
}

.footer-title {
  font-size: var(--h2-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: 1.5rem;
}

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

.footer-social {
  font-size: 1.25rem;
  margin-right: var(--mb-1-5);
  transition: color 0.3s;
}

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

.footer-title,
.footer-subtitle,
.footer-link,
.footer-social {
  color: #fff;
}

/* ===== SCROLL UP ===== */
.scrollup {
  position: fixed;
  right: 1rem;
  bottom: -20%;
  background-color: var(--first-color);
  opacity: 0.8;
  padding: 0.3rem 0.5rem;
  border-radius: 0.4rem;
  z-index: var(--z-tooltip);
  transition: bottom 0.4s, background-color 0.3s, opacity 0.3s;
}

.scrollup:hover {
  background-color: var(--first-color-alt);
  opacity: 1;
}

.scroll-up-icon {
  font-size: 1.25rem;
  color: #fff;
}

.show-scroll {
  bottom: 5rem;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 0.6rem;
  background-color: var(--scroll-bar-color);
  border-radius: 0.5rem;
}

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

/* ===== MEDIA QUERIES ===== */

/* Small devices */
@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-content {
    grid-template-columns: 0.25fr 3fr;
  }

  .home-blob {
    width: 180px;
  }

  .qualification-data {
    gap: 0.5rem;
  }

  .services-container {
    grid-template-columns: max-content;
    justify-content: center;
  }

  .services-content {
    padding-right: 3.5rem;
  }

  .services-box {
    padding: 0 0.5rem;
  }
}

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

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

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

  .about-container,
  .portfolio-content,
  .contact-container,
  .footer-container {
    grid-template-columns: repeat(2, 1fr);
  }

  .qualification-section {
    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-toggle,
  .nav-close {
    display: none !important;
  }

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

  .nav-menu {
    margin-left: auto;
  }

  .change-theme {
    margin: 0;
  }

  .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;
  }

  .qualification-tabs {
    justify-content: center;
  }

  .qualification-button {
    margin: 0 var(--mb-1);
  }

  .services-container {
    grid-template-columns: repeat(3, 218px);
    justify-content: center;
  }

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

  .services-content {
    padding: 6rem 0 2rem 2.5rem;
  }

  .services-box-content {
    width: 450px;
  }

  .portfolio-img {
    width: 320px;
  }

  .portfolio-content {
    align-items: center;
  }

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

  .footer-bg {
    padding: 3rem 0 3.5rem;
  }

  .footer-links {
    flex-direction: row;
    column-gap: 2rem;
  }

  .footer-social {
    justify-self: flex-end;
  }

  .footer-copy {
    margin-top: 4.5rem;
  }
}

/* Large devices */
@media screen and (min-width: 1024px) {
  .header,
  .main,
  .footer-container {
    padding: 0;
  }

  .home-blob {
    width: 320px;
  }

  .home-social {
    transform: translateX(-6rem);
  }

  .services-container {
    grid-template-columns: repeat(3, 238px);
  }

  .portfolio-content {
    column-gap: 5rem;
  }

  .swiper-icon {
    font-size: 3.5rem;
  }

  .swiper-button-prev {
    left: -3.5rem;
  }

  .swiper-button-next {
    right: -3.5rem;
  }

  .swiper-container-horizontal > .swiper-pagination-bullets {
    bottom: -4.5rem;
  }
}