/* 1. Variables
----------------------------------------------------------------------------
*/
:root {
  --bg-light: #333e4d;
  --bg-dark: #2a3543;
  --bg-darker: #212a36;
  --color-primary: #8874ef;
  --color-primary-dark: #772fed;
  --color-text: #a2acbb;
  --color-white: #fff;
  --shadow: 0px 6px 30px 2px rgba(0, 0, 0, 0.1);

  /* Font Family */
  --ff-main: "Raleway", sans-serif;

  /* Font Weight */
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* Font Sizes */
  --fs-sm: 1.4rem;
  --fs-md: 1.6rem;
  --fs-lg: 2rem;
  --fs-xl: 2.4rem;
  --fs-xxl: clamp(var(--fs-lg), 5vw, 3.5rem);
  --fs-heading: clamp(3rem, 8vw, 5rem);

  /* transition */
  --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);

  /* height header */
  --header-height: 8rem;
}

/* 2. CSS Reset
----------------------------------------------------------------------------
*/
*,
*::before,
*::after {
  box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
p,
ul {
  margin: 0;
  padding: 0;
}

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

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: var(--color-text);
}

img {
  max-width: 100%;
  display: block;
}

input,
textarea,
button {
  font: inherit;
  outline: none;
  border: none;
}

button {
  cursor: pointer;
}

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  font-family: var(--ff-main);
  background-color: var(--bg-dark);
  color: var(--color-text);
  font-size: var(--fs-md);
  font-weight: var(--fw-medium);
  margin-top: var(--header-height);
}

/* 3. Auxiliary Classes
----------------------------------------------------------------------------
*/
.grid {
  display: grid;
  justify-content: center;
  align-items: center;
  grid-template-columns: 100%;
  gap: 2rem;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

.section {
  padding: 4rem 0 8rem 0;
}

.section__header {
  text-align: center;
  margin-bottom: 8rem;
}

.section__title {
  font-size: var(--fs-lg);
  margin-bottom: 2rem;
}

.section__description {
  margin: auto;
  max-width: 400px;
  font-size: var(--fs-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  column-gap: 1rem;
  padding: 1.5rem 3rem;
  border-radius: 0.5rem;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  transition: var(--transition);
}

.btn i {
  font-size: var(--fs-lg);
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
}

.btn--dark {
  background-color: var(--bg-darker);
  color: var(--color-white);
}

.btn--dark:hover {
  background-color: var(--bg-dark);
}

/* 4. Header
----------------------------------------------------------------------------
*/
.l-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--bg-dark);
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: var(--transition);
}

.l-header--scroll {
  box-shadow: var(--shadow);
}

.nav {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-white);
}

.nav__list {
  display: flex;
  align-items: center;
  column-gap: 4rem;
}

.nav__link {
  color: var(--color-white);
  transition: var(--transition);
}

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

.nav__open,
.nav__close {
  display: none;
}

/* Mobile navigation */
@media screen and (max-width: 768px) {
  .nav__menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-darker);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.3s ease-in-out;
    transform: scale(0);
    opacity: 0;
  }

  .nav__menu--open {
    transform: scale(1);
    opacity: 1;
  }

  .nav__list {
    flex-direction: column;
    row-gap: 4rem;
  }

  .nav__open,
  .nav__close {
    display: block;
    font-size: 3rem;
    color: var(--color-white);
    transition: var(--transition);
    cursor: pointer;
  }

  .nav__close {
    position: absolute;
    top: 3rem;
    right: 3rem;
  }

  .nav__open:hover,
  .nav__close:hover {
    color: var(--color-primary);
  }
}

/* 5. Home section
----------------------------------------------------------------------------
*/
.home__wrapper {
  min-height: calc(100vh - (var(--header-height)));
  padding: 5rem 0;
}

.home__subtitle {
  display: block;
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: 1rem;
}

.home__title {
  font-size: var(--fs-heading);
  margin-bottom: 2rem;
}

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

.home__description {
  margin-bottom: 3rem;
}

.home__image {
  justify-self: center;
}

.social {
  margin: 4rem 0;
}

.social__list {
  display: flex;
  column-gap: 1rem;
}

.social__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background-color: var(--bg-light);
  border-radius: 50%;
  transition: var(--transition);
  cursor: pointer;
}

.social__item:hover {
  background-color: var(--color-primary);
}

.social__link {
  color: var(--color-white);
  font-size: 2rem;
}

/* 6. About section
----------------------------------------------------------------------------
*/
.stats {
  order: 1;
}

.stats__card {
  display: flex;
  align-items: center;
  column-gap: 2rem;
  background-color: var(--bg-light);
  border-radius: 0.5rem;
  padding: 2rem;
  width: 100%;
  max-width: 480px;
  justify-self: center;
  transition: var(--transition);
}

.stats__card:hover {
  transform: translateX(0.8rem);
  box-shadow: var(--shadow);
}

.stats__number {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-white);
}

.stats__description {
  font-weight: var(--fw-bold);
  margin-top: 1rem;
}

.stats__icon {
  background-color: var(--color-primary);
  border-radius: 0.5rem;
  color: var(--color-white);
  font-size: 3rem;
  padding: 2rem;
}

.about__body {
  text-align: center;
  margin-bottom: 4rem;
}

.about__title {
  font-size: var(--fs-xxl);
  margin-bottom: 2rem;
}

.about__description {
  margin-bottom: 4rem;
}

/* 7. Services section
----------------------------------------------------------------------------
*/
.service__card {
  justify-self: center;
  background-color: var(--bg-light);
  box-shadow: var(--shadow);
  padding: 7rem 2rem;
  width: 100%;
  max-width: 300px;
  transition: var(--transition);
}

.service__card:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.service__icon {
  display: block;
  margin-bottom: 1rem;
  font-size: 3rem;
  color: var(--color-white);
}

.service__title {
  font-size: var(--fs-lg);
  margin-bottom: 4rem;
}

/* 8. Portfolio section
----------------------------------------------------------------------------
*/
.portfolio__card {
  background-color: var(--bg-light);
  box-shadow: var(--shadow);
  border-radius: 0.5rem;
  padding: 2rem;
  max-width: 300px;
  justify-self: center;
}

.portfolio__image {
  border-radius: 0.3rem;
  margin-bottom: 2rem;
}

.portfolio__category {
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
}

.portfolio__title {
  margin: 2rem 0 3rem 0;
}

/* 9. Project section
----------------------------------------------------------------------------
*/
.project__wrapper {
  background-color: var(--color-primary-dark);
  width: 100%;
  max-width: 90rem;
  margin: auto;
  border-radius: 0.5rem;
  color: var(--color-white);
  padding: 5rem;
  text-align: center;
}

.project__icon {
  font-size: 4rem;
}

.project__title {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  margin-bottom: 1rem;
}

.project__description {
  font-size: var(--fs-sm);
  margin-bottom: 2rem;
}

/* 10. Testimonials section
----------------------------------------------------------------------------
*/
.testimonial__item {
  text-align: center;
}

.testimonial__icon {
  color: var(--color-primary);
  font-size: 4rem;
}

.testimonial__quote {
  font-size: var(--fs-xl);
  color: var(--color-white);
  font-weight: var(--fw-semibold);
  margin-top: 2rem;
  margin-bottom: 3rem;
}

.testimonial__name {
  color: var(--color-white);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
}

.testimonial__image {
  justify-self: center;
  width: 100%;
  max-width: 450px;
  border-radius: 0.5rem;
}

.swiper-wrapper {
  margin-bottom: 8rem;
}

.testimonial__wrapper .swiper-pagination-bullets {
  justify-content: space-around;
}

.testimonial__wrapper .swiper-pagination-bullet {
  background-color: var(--color-text);
  border-radius: 0.5rem;
  width: 3rem;
  height: 0.5rem;
}

.testimonial__wrapper .swiper-pagination-bullet-active {
  background-color: var(--color-primary);
}

/* 11. Contact section
----------------------------------------------------------------------------
*/
.contact__body {
  display: flex;
  justify-content: center;
}

.contact__list {
  display: grid;
  gap: 3rem;
  margin-bottom: 5rem;
}

.contact__item {
  background-color: var(--bg-light);
  border-radius: 0.5rem;
  width: 100%;
  max-width: 280px;
  padding: 3rem;
  display: flex;
  align-items: center;
  flex-direction: column;
  row-gap: 2rem;
  color: var(--color-white);
  text-align: center;
  box-shadow: var(--shadow);
}

.contact__icon {
  font-size: 4rem;
}

.form {
  width: 100%;
  max-width: 400px;
  display: grid;
  row-gap: 4rem;
  justify-self: center;
}

.form__input {
  width: 100%;
  padding: 2rem;
  border-radius: 0.5rem;
  background-color: var(--bg-light);
  color: var(--color-text);
  border: 1px solid var(--bg-light);
  transition: var(--transition);
}

.form__input:focus {
  border-color: var(--color-primary);
}

.form__input::placeholder {
  color: inherit;
}

.form__textarea {
  resize: none;
  height: 20rem;
}

/* 12. Footer
----------------------------------------------------------------------------
*/
.l-footer {
  background-color: var(--bg-darker);
  padding: 5rem 0 3rem;
}

.footer__wrapper {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.footer__name {
  font-size: var(--fs-xl);
  margin-bottom: 1rem;
}

.footer__wrapper .social {
  margin-top: 2.5rem;
  margin-bottom: 5rem;
}

.footer__copyright {
  font-size: var(--fs-sm);
}

/* 13. Scrollbar
----------------------------------------------------------------------------
*/

::-webkit-scrollbar {
  width: 1rem;
  border-radius: 0.5rem;
  background-color: var(--bg-darker);
}

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

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

/* 14. Media queries
----------------------------------------------------------------------------
*/

@media screen and (min-width: 580px) {
  .contact__list {
    grid-template-columns: repeat(2, max-content);
  }
}

@media screen and (min-width: 668px) {
  .services__wrapper,
  .portfolio__wrapper {
    grid-template-columns: repeat(2, max-content);
  }
}

@media screen and (min-width: 768px) {
  .home__wrapper,
  .about__wrapper {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats {
    order: initial;
  }

  .about__body {
    text-align: initial;
  }

  .project__body {
    display: flex;
    column-gap: 2rem;
    text-align: initial;
  }

  .project__wrapper {
    grid-template-columns: 2.5fr 1fr;
  }

  .testimonial__item {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 5rem;
    text-align: initial;
  }

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

@media screen and (min-width: 968px) {
  .services__wrapper,
  .portfolio__wrapper {
    grid-template-columns: repeat(3, max-content);
  }
}