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

:root {
  --header-height: 3rem;
  --hue-color: 240;
  --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%);
  --card-background: #fff;
  --card-shadow: rgba(0, 0, 0, 0.1);
  --shadow-color: rgba(0, 0, 0, 0.1);
  --primary-color: #007bff;
  --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;
  }
}

* {
  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; }

.section { padding: 2rem 0 4rem; }
.section__title {
  font-size: var(--h1-font-size);
  text-align: center;
}
.section__subtitle {
  display: block;
  font-size: var(--small-font-size);
  margin-bottom: var(--mb-3);
  text-align: center;
}

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

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

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

.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: 0.3s;
  }
}
.nav__list {
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.nav__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--title-color);
  font-size: var(--small-font-size);
  font-weight: var(--font-medium);
}
.nav__link.active, .active-link { color: var(--first-color); font-weight: bold; }
.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; }
.scroll-header { box-shadow: 0 -1px 4px rgba(0, 0, 0, 0.15); }

.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: 1.05rem;
  color: var(--first-color);
}
.home__social-icon:hover { color: var(--first-color-lighter); }
.home__img {
  width: 100%;
  height: auto;
  display: flex;
  justify-content: center;
  align-items: center;
}
.home__blob-img {
  width: 80%;
  height: auto;
  object-fit: cover;
  border-radius: 20px;
}
.home__data { grid-column: 1/3; }
.home__title { font-size: var(--big-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); }
.portfolio__scroll {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 15px;
  cursor: pointer;
}
.home__scroll { display: none; }
.home__scroll-button {
  color: var(--first-color);
  transition: 0.3s;
}
.home__scroll-button:hover { transform: translateY(0.25rem); }
.home__scroll-mouse { font-size: 2rem; }
.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; }

.button {
  display: inline-block;
  background-color: var(--first-color);
  color: #fff;
  padding: 1rem;
  margin-bottom: 10px;
  border-radius: 0.5rem;
  font-weight: var(--font-medium);
}
.button:hover { background-color: var(--first-color-alt); }
.button__icon {
  font-size: 1.25rem;
  margin-left: 0.25rem;
  transition: 0.3s;
}
.button--white {
  background-color: #fff;
  color: var(--first-color);
}
.button--white:hover { background-color: #fff; }
.button--flex { display: inline-flex; align-items: center; }
.button--small { padding: 0.75rem 1rem; }
.button--link {
  padding: 0;
  background-color: transparent;
  color: var(--first-color);
}
.button--link:hover {
  background-color: transparent;
  color: var(--first-color-alt);
}

.about__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  max-width: 100%;
  display: block;
  border-radius: 10px;
}
.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(--title-color);
}
.about__info-name { font-size: var(--smaller-font-size); }
.about__info-name, .about__info-title {
  display: block;
  text-align: center;
}
.about__buttons {
  display: flex;
  justify-content: center;
}


.qualification__tabs {
  display: flex;
  justify-content: space-evenly;
  margin-bottom: var(--mb-2);
}
.qualification__button {
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
  cursor: pointer;
}
.qualification__button:hover { color: var(--first-color); }
.qualification__icon {
  font-size: 1.8rem;
  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);
}
.qualification__calender {
  font-size: var(--smaller-font-size);
  color: var(--text-color-light);
}
.qualification__rounder {
  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_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: 0.25rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
.services__button {
  cursor: pointer;
  font-size: var(--small-font-size);
}
.services__button:hover .button__icon { transform: translateX(0.25rem); }
.services__modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 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: 0.3s;
}
.services__modal-content {
  position: relative;
  background-color: var(--container-color);
  padding: 1.5rem;
  border-radius: 1.25rem;
}
.services__modal-services { row-gap: 1rem; }
.services__modal-service { display: flex; }
.services__modal-title {
  font-size: var(--h3-font-size);
  font-family: var(--font-medium);
  margin-bottom: var(--mb-1-5);
}
.services__modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  color: var(--first-color);
  cursor: pointer;
}
.services__modal-icon {
  color: var(--first-color);
  margin-right: var(--mb-0-25);
}
.active-modal {
  opacity: 1;
  visibility: visible;
}
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.portfolio__card {
  padding: 1.5rem;
  border: 1px solid #ddd;
  border-radius: 10px;
  background-color: var(--container-color);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.portfolio__card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.portfolio__description {
  font-size: 0.95rem;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.portfolio__card a {
  color: #007ecc;
  text-decoration: none;
  font-weight: bold;
}

.portfolio__card a:hover {
  text-decoration: underline;
}

.contact__container { row-gap: 2rem; }
.contact__information {
  display: flex;
  margin-bottom: var(--mb-2);
}
.contact__icon {
  font-size: 2rem;
  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);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem 0.25rem;
}
.contact__label {
  font-size: var(--smaller-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;
  padding: 0.25rem 0.5rem 0.5rem 0;
}

.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);
}
.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);
  transition: 0.3s;
}
.footer__social {
  font-size: 1.25rem;
  margin-right: var(--mb-1-5);
}
.footer__copy {
  font-size: var(--smaller-font-size);
  text-align: center;
  color: var(--text-color-light);
  margin-top: var(--mb-3);
}
.footer__title, .footer__link, .footer__subtitle, .footer__social { color: #fff; }

.scrollup {
  position: fixed;
  right: 1rem;
  bottom: -20%;
  background-color: var(--first-color);
  opacity: 0.8;
  padding: 0 0.3rem;
  border-radius: 0.4rem;
  z-index: var(--z-tooltip);
  transition: 0.4s;
}
.scrollup:hover { background-color: var(--first-color-alt); }
.scrollup__icon { font-size: 1.5rem; color: #fff; }
.show-scroll { bottom: 5rem; }

::-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;
}
::-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: 2rem 0.25rem 4rem; }
  .nav__list { column-gap: 0; }
  .home__content { grid-template-columns: 0.25fr 3fr; }
  .home__blob { width: 180px; }
  .skills__icon, .skills__arrow { font-size: 1.25rem; }
  .skills__title { font-size: var(--normal-font-size); }
  .qualification__data { gap: 0.5rem; }
  .services__container { justify-content: center; }
  .services__content { padding-right: 0.5rem; }
  .services__modal { padding: 0 0.5rem; }
  .project__img { width: 200px; }
}

@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, .project__container, .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 4rem; }
  .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: 240px; }
  .home__scroll { display: block; }
  .home__scroll-button { margin-left: 3rem; }
  .about__container { column-gap: 5rem; }
  .about__img { width: 300px; }
  .about__description { text-align: initial; }
  .about__info { justify-content: space-between; }
  .about__buttons { justify-content: initial; }
  .skills__icon, .skills__arrow { font-size: 1.75rem; }
  .qualification__tabs { justify-content: center; }
  .qualification__button { margin: 0 var(--mb-1); }
  .qualification__sections { grid-template-columns: 0.5fr; }
  .services_container { grid-template-columns: repeat(3, 218px); justify-content: center; }
  .services__content { padding: 6rem 0 2rem 2.5rem; }
  .services__icon { font-size: 2rem; }
  .services__modal-content { width: 500px; }
  .testimonials { align-items: center; }
  .project { text-align: initial; }
  .project__bg { background: none; }
  .project__container {
    background-color: var(--first-color-second);
    border-radius: 1rem;
    padding: 3rem 2.5rem 0;
    grid-template-columns: 1fr max-content;
    column-gap: 3rem;
  }
  .project__data { padding-top: 0.8rem; }
  .footer__container { grid-template-columns: repeat(3, 1fr); }
  .footer__bg { padding: 3rem 0 3.5rem; }
  .footer__links { flex-direction: row; column-gap: 2rem; }
  .footer__socials { justify-self: flex-end; }
  .footer__copy { margin-top: 4.5rem; }
}

@media screen and (min-width: 968px) {
  .header, .main, .footer__container { padding: 0; }
  .home__blob { width: 280px; }
  .home__title { font-size: 37px; }
  .home__social { transform: translateX(-6rem); }
  .button--white { bottom: -4.5rem; }
}

.experience {
  padding: 20px 0;
}
.experience__content {
  background-color: var(--card-background);
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 8px var(--card-shadow);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
.experience__content:hover { transform: translateY(-5px); }

.certifications {
  padding: 20px 0;
}
.certifications__container {
  display: grid;
  gap: 20px;
}
.certifications__content {
  background-color: var(--card-background);
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 8px var(--card-shadow);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
.certifications__content:hover { transform: translateY(-5px); }
.certifications__title {
  font-size: 1.5rem;
  margin-bottom: 5px;
}
.certifications__subtitle {
  display: block;
  font-size: 1rem;
  color: #666;
}
.certifications__description {
  margin-top: 10px;
  line-height: 1.5;
}

.achievements {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  padding: 20px;
}
.achievements h2 {
  font-size: 2em;
  margin-bottom: 20px;
  font-weight: bold;
}
.achievements-item {
  background-color: var(--container-color);
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin: 1rem 0;
  box-shadow: 0 2px 4px var(--shadow-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.achievements-item:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 12px var(--shadow-color);
}
.achievements-item ul {
  list-style: none;
  padding: 0;
  text-align: left;
  margin: 0;
}
.achievements-item ul li { margin: 10px 0; }
.achievements-item a {
  color: var(--primary-color);
  text-decoration: none;
}
.achievements-item a:hover { text-decoration: underline; }