* {
  margin: 0;
  border: 0;
  list-style: none;
  text-decoration: none;
  outline: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}
:root {
  --color-primary: #6c63ff;
  --color-success: #00bf8e;
  --color-warning: #f7c94b;
  --color-danger: #f75842;
  --color-danger-variant: rgba(247, 88, 66, 0.4);
  --color-white: #fff;
  --color-light: rgba(255, 255, 255, 0.7);
  --color-black: #000;
  --color-bg: #1f2641;
  --color-bg1: #494b6c;
  --color-bg2: #424890;

  --container-width-lg: 80%;
  --container-width-md: 90%;
  --container-width-sm: 94%;

  --transition: all 400ms ease;
}
.window-scroll {
  background: var(--color-bg1);
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.4);
}
body {
  font-family: "Cal Sans", sans-serif;
  line-height: 1.7;
  color: var(--color-white);
  background: var(--color-bg);
}
.container {
  margin: 0 auto;
  color: var(--container-width-lg);
}

section {
  padding: 6rem 0;
}
section h2 {
  margin-bottom: 4rem;
  text-align: center;
}
h1,
h2,
h3,
h4,
h5 {
  line-height: 1.2;
}
h1 {
  font-size: 2.4rem;
  font-family: Arial, Helvetica, sans-serif;
}
h2 {
  font-size: 2rem;
  font-family: Arial, Helvetica, sans-serif;
}
h3 {
  font-size: 1.6rem;
  font-family: Arial, Helvetica, sans-serif;
}
h4 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.3rem;
}
a {
  color: var(--color-white);
}

.btn {
  background: var(--color-white);
  display: inline-block;
  color: var(--color-black);
  padding: 1rem 2rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: var(--transition);
}
.btn:hover {
  background: transparent;
  border-color: var(--color-white);
  color: var(--color-white);
}
.btn-primary {
  color: var(--color-white);
  background: var(--color-danger);
}
nav {
  height: 5.2rem;
  position: fixed;
  z-index: 11;
  top: 0;
  width: 100vw;
}
.nav__container {
  justify-content: space-between;
  height: 100%;
  display: flex;
  align-items: center;
}
nav button {
  display: none;
}
.nav__menu {
  gap: 4rem;
  align-items: center;
  display: flex;
  padding: 8rem;
}
.nav__menu a {
  font-size: 0.9rem;
  transition: var(--transition);
}
.nav__menu a:hover {
  color: var(--color-bg1);
}
header {
  position: relative;
  top: 8rem;
  overflow: hidden;
  margin-bottom: 5rem;
  height: 70vh;
}
.header__container {
  grid-template-columns: 1fr 1fr;
  display: grid;
  align-items: center;
  gap: 5rem;
  padding: 1.5rem;

  height: 100%;
}
.header__left p {
  margin: 1rem 0 2.4rem;
}
p {
  font-family: Arial, Helvetica, sans-serif;
}
.categories {
  background: var(--color-bg1);
  height: 29rem;
}
.categories h1 {
  margin-bottom: 3rem;
  line-height: 1;
}
.categories__container {
  grid-template-columns: 40% 60%;
  display: grid;
  gap: 5rem;
}
::-webkit-scrollbar {
  width: 5px;
}
::-webkit-scrollbar-thumb {
  background: transparent;
  background-color: white;
}
.categories__left {
  margin-left: 4rem;
}
.categories__left p {
  margin: 1rem 0 3rem;
}
.categories__right {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-right: 6rem;
}
.gategory:nth-child(2) .gategory__icon {
  background: var(--color-success);
}
.gategory:nth-child(3) .gategory__icon {
  background: var(--color-warning);
}
.gategory:nth-child(4) .gategory__icon {
  background: var(--color-danger);
}
.gategory {
  width: 350px;
  background: var(--color-bg2);
  border-radius: 2rem;
  padding: 2rem;
  transition: var(--transition);
}
.gategory:hover {
  box-shadow: 0 3rem 3rem rgba(40, 37, 36, 0.4);
  z-index: 1;
}
.gategory__icon {
  background: var(--color-primary);
  border-radius: 0.9rem;
  padding: 0.7rem;
}
.gategory h5 {
  margin: 2rem 0 1rem;
  font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
    "Lucida Sans", Arial, sans-serif;
  font-size: 1rem;
}
.gategory p {
  font-size: 0.8rem;
}
.courses {
  margin-top: 10rem;
}
.courses__container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.course {
  text-align: center;
  border: 1px solid transparent;
  background: var(--color-bg1);
}
.course {
  background: transparent;
  border-color: var(--color-primary);
  border-radius: 15px;
}
.course__info {
  padding: 2rem;
}
.course__info p {
  margin: 1.2rem 0 2rem;
  font-size: 0.9rem;
}
.faqs {
  background-color: var(--color-bg1);
}
.faqs__container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.faqs h2 {
  color: var(--color-danger);
  font-family: Cambria, Cochin, Georgia, Times, "Times New Roman", serif;
}
.faq {
  display: flex;
  height: fit-content;
  gap: 1rem;
  background-color: var(--color-primary);
  cursor: pointer;
  border-radius: 15px;
  padding: 2rem;
  align-items: center;
}
.faq h4 {
  font-size: 1rem;
  color: black;
  line-height: 2.2;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
}
.faq__icon {
  align-self: flex-start;
  font-size: 1.5rem;
}
.faq__icon:hover {
  color: var(--color-warning);
}
.faq p {
  font-size: 0.9rem;
  margin-top: 0.8rem;
  margin: 1rem;
  display: none;
}
.faq.open p {
  display: block;
}
.reviews__Container {
  position: relative;
  overflow-x: hidden;
  margin-bottom: 5rem;
}
.reviews {
  padding-top: 2rem;
}
.avatar {
  height: 6rem;
  width: 6rem;
  overflow: hidden;
  margin: 0 auto 1rem;
  border-radius: 50%;
  border: 0.3rem solid var(--color-bg2);
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.reviews__info {
  text-align: center;
}
.review__body {
  padding: 2rem;
  background: var(--color-primary);
  margin-top: 3rem;
  position: relative;
}
.review__body::before {
  content: "";
  background: linear-gradient(
    transparent,
    var(--color-primary),
    var(--color-primary),
    var(--color-primary)
  );
  display: block;
  width: 3rem;
  height: 3rem;
  position: absolute;
  left: 50%;
  transform: rotate(45deg);
  top: -1.5rem;
}
footer {
  background: var(--color-bg1);
  font-size: 0.9rem;
  padding-top: 5rem;
}
.footer__container {
  grid-template-columns: repeat(3, 1fr);
  display: grid;
  gap: 5rem;
}
.footer__container > div h4 {
  font-family: "Lucida Sans", "Lucida Sans Regular", "Lucida Grande",
    "Lucida Sans Unicode", Geneva, Verdana, sans-serif;
  margin-bottom: 1.5rem;
}
.footer__1 p {
  margin: 0 0 2rem;
}
footer ul li {
  margin-bottom: 0.9rem;
}
footer ul li a:hover {
  text-decoration: underline;
  color: #f75842;
}
.footer__copyright {
  text-align: center;
  font-size: 1.5rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.627);
  padding: 1.2rem 0;
}
@media screen and (max-width: 1024px) {
  h1 {
    font-size: 2.2rem;
  }
  h2 {
    font-size: 1.7rem;
  }
  h3 {
    font-size: 1.4rem;
  }
  h4 {
    font-size: 1.2rem;
  }
  nav button {
    background: transparent;
    display: inline-block;
    color: var(--color-danger);
    font-size: 1.8rem;
  }
  nav button#close-menu-btn {
    display: none;
  }
  .nav__menu {
    right: 5%;
    top: 0.2rem;
    position: fixed;
    height: fit-content;
    flex-direction: column;
    gap: 0;
    width: 18rem;
    display: none;
  }
  .nav__menu li {
    height: 5rem;
    width: 400%;
    animation: animateNavItems 400ms linear forwards;
    transform-origin: top rihgt;
    opacity: 0;
  }
  .nav__menu li a {
    background-color: var(--color-primary);
    box-shadow: -4rem 6rem 10rem rgba(0, 0, 0, 0.8);
    height: 100%;
    place-items: center;
    display: grid;
    width: 160%;
    border-radius: 0.3rem;
  }
  .nav__menu li a:hover {
    background: var(--color-bg2);
    color: var(--color-white);
  }
  header {
    height: 52vh;
    margin-bottom: 4rem;
  }
  .nav__menu li:nth-child(2) {
    animation-delay: 200ms;
  }
  .nav__menu li:nth-child(3) {
    animation-delay: 400ms;
  }
  .nav__menu li:nth-child(4) {
    animation-delay: 600ms;
  }
  .header__container {
    padding-bottom: 3rem;
    gap: 0;
  }
  .categories {
    height: auto;
  }
  .categories__container {
    grid-template-columns: 1fr;
    gap: 3.4rem;
  }
  p {
    font-size: 1.2rem;
  }
  .categories__left {
    margin-right: 0;
  }
  .courses {
    margin-top: 0;
  }
  .courses__container {
    grid-template-columns: 1fr;
  }
  .faqs__container {
    grid-template-columns: 1fr;
  }
  .faq {
    padding: 1.5rem;
  }
  .footer__container {
    grid-template-columns: 1fr 1fr;
    left: 10%;
  }
}
@keyframes animateNavItems {
  0% {
    transform: rotateB(-90deg);
  }
  100% {
    transform: rotateB(0);
    opacity: 1;
  }
}
@media screen and (max-width: 600px) {
  .container {
    width: var(--container-width-sm);
    /* width: 100%;*/
  }
  .fa-solid {
    margin-right: 2rem;
  }
  .nav__menu {
    right: 20%;
  }
  header {
    height: 100vh;
  }
  .header__container {
    text-align: center;
    margin-top: 0rem;
    grid-template-columns: 1fr;
  }

  .header__right img {
    display: none;
  }
  .categories__right {
    grid-template-columns: 1fr;
  }
  .categories {
    padding: 1rem;
    border-radius: 1rem;
  }

  .categories__left {
    margin-left: 1%;
  }
  .categories__left p {
    text-align: center;
    margin-right: 8rem;
  }
  .courses__container {
    grid-template-columns: 1fr;
    margin-right: 2rem;
  }
  .courses__container img {
    width: 10rem;
  }
  .review__body {
    padding: 1.2rem;
  }
  .review__body p {
    font-size: 1rem;
    height: 200px;
  }
  .footer__container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  .footer__1 p {
    font-size: 0.8rem;
    text-align: center;
  }
}