style.css

* {
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  list-style: none;
  text-decoration: none;
  box-sizing: border-box;
}

:root {
  /* =====GREEN THEME===== */
  --color-primary: #ff7b02;
  --color-primary-variant: #e5a55d;
  --color-bg-1: #000e17;
  --color-bg-2: #001e2d;
  --color-bg-3: #012734;
  --color-bg-4: #003347;
  --color-light: #85a2b2;
  --color-white: hsl(0, 0%, 90%);

  /* =====PURPLE THEME===== */
  /* --color-primary: #ff7b02;
  --color-primary-variant: #e5a55d;
  --color-bg-1: #140021;
  --color-bg-2: #1e0032;
  --color-bg-3: #25003e;
  --color-bg-4: #36005a;
  --color-light: #d0b8e0;
  --color-white: hsl(0, 0%, 90%); */

  --container-width-lg: 88%;
  --container-width-md: 92%;

  --transition: all 400ms ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Montserrat", sans-serif;
  background: var(--color-bg-3);
  color: var(--color-light);
  line-height: 1.7;
}

h1,
h2 {
  line-height: 1.1;
  font-weight: 400;
}

h1 {
  font-size: 4.35rem;
  color: var(--color-white);
}

h2 {
  font-size: 3.5rem;
}

a {
  color: var(--color-light);
  transition: var(--transition);
}

a:hover {
  color: var(--color-primary);
}

.container {
  width: var(--container-width-lg);
  margin: 0 auto;
  max-width: 2160px;
}

img {
  display: block;
  object-fit: contain;
  width: 100%;
}

/* =================== NAV =================== */
nav {
  height: 5rem;
  width: 100vw;
  display: grid;
  place-items: center;
  position: fixed;
  top: 0%;
  left: 0%;
  z-index: 999;
}

/* nav class on scroll using JavaScript */
.windo-scrolled {
  background: var(--color-bg-2);
  border-bottom: 0.2rem solid var(--color-bg-3);
  box-shadow: 0 1rem 1rem rgba(0, 0, 0, 0.3);
}

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

/* only for tablets and phones */
.nav__toggle-btn {
  display: none;
}

.nav__logo {
  width: 12rem;
}

.nav__links {
  display: flex;
  gap: 4rem;
}

.nav__socials {
  display: flex;
  gap: 1rem;
}

.nav__socials a {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(
    var(--color-primary-variant),
    var(--color-primary)
  );
  border-radius: 0.5rem;
  color: var(--color-bg-4);
  display: grid;
  place-items: center;
}

.nav__socials a:hover {
  box-shadow: 0 1rem 1rem rgba(0, 0, 0, 0.4);
}

/* =================== HEADER =================== */
header {
  max-width: 100vw;
  height: 100vh;
  position: relative;
  top: 0;
  background: linear-gradient(var(--color-bg-3), var(--color-bg-1));
  overflow: hidden;
}

.header__container {
  display: grid;
  grid-template-columns: 44% 51%;
  gap: 5%;
  margin-top: 10rem;
  position: relative;
}

.header__img-bg {
  background: var(--color-bg-4);
  height: 22rem;
  width: 16rem;
  position: absolute;
}

.header__img-lg {
  width: 33.5rem;
  position: relative;
  top: 1.2rem;
  left: 1.2rem;
  filter: saturate(0) brightness(0.3);
  transition: var(--transition);
}

.header__img-sm {
  width: 28rem;
  height: 28rem;
  filter: saturate(1.2);
  overflow: hidden;
  position: absolute;
  left: 12rem;
  top: 6rem;
  transition: var(--transition);
}

.header__left:hover .header__img-sm {
  opacity: 0;
}

.header__left:hover .header__img-lg {
  filter: saturate(1.4) brightness(1);
  border: 1rem solid var(--color-bg-4);
  top: 0;
  left: 0;
}

.header__head {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
}

/* general empty style  */
.empty {
  height: 3.5rem;
  width: 20rem;
  background: var(--color-bg-2);
  border-radius: calc(3.5rem / 2);
  margin-bottom: 3.5rem;
  box-shadow: inset 0 1rem 1rem rgba(0, 0, 0, 0.3);
  border: 1px solid var(--color-bg-4);
}

.header__tag {
  color: var(--color-primary-variant);
}

.header__right p {
  margin-top: 2rem;
  width: 85%;
}

/* only shown on tablet and phone  */
.header__btn-md {
  display: none;
}

.header__frames {
  position: absolute;
  top: 84.5vh;
  right: 53rem;
  transition: var(--transition);
}

.header__frame {
  filter: saturate(1.2);
  width: 14rem;
  border: 0.4rem solid var(--color-bg-3);
  box-shadow: 0 0 4rem rgba(0, 0, 0, 0.5);
  position: absolute;
  transform: rotate(-10deg);
  transform-origin: bottom left;
  transition: var(--transition);
}

.header__frame:nth-child(2) {
  transform: rotate(20deg);
  top: -2rem;
  left: -2rem;
}

.header__frames:hover .header__frame {
  transform: rotate(0);
}

.header__frames:hover .header__frame:nth-child(2) {
  top: 0;
  left: 16rem;
}

.contact__btn {
  color: var(--color-bg-1);
  width: 10rem;
  height: 10rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.header__btn {
  background: linear-gradient(
    -30deg,
    var(--color-primary-variant),
    var(--color-primary),
    var(--color-primary-variant)
  );
  position: absolute;
  right: 6%;
  bottom: -3rem;
}

.header__btn:hover {
  box-shadow: 0 2rem 2rem rgba(0, 0, 0, 0.3);
  transform: translateY(-1rem);
  color: var(--color-bg-1);
}

.contact__btn i {
  font-size: 3.5rem;
  position: absolute;
}

.contact__btn p {
  font-size: 1rem;
  font-weight: 600;
  width: 10rem;
  height: 10rem;
  display: flex;
  justify-content: center;
  animation: spinText 35s linear;
}

.contact__btn p span {
  position: absolute;
  transform-origin: 0.3rem 5rem;
}

@keyframes spinText {
  to {
    transform: rotate(360deg);
  }
}

/* =================== SECTION ABOUT =================== */
#about {
  margin-top: 20rem;
}

.about__container {
  display: grid;
  grid-template-columns: 10rem 26rem auto;
  gap: 3rem;
  position: relative;
}

.about__title {
  position: absolute;
  top: -8.5rem;
  z-index: 1;
  font-size: 3.75rem;
}

.about__btn {
  color: var(--color-primary-variant);
  align-self: end;
}

.about__btn:hover {
  transform: translateY(-1rem);
  color: var(--color-primary);
}

.about__img {
  position: relative;
}

.about__img-bg {
  width: 16rem;
  height: 24rem;
  position: absolute;
  bottom: 0;
  background: var(--color-bg-4);
}

.about__img-lg {
  position: relative;
  left: 1rem;
  bottom: 1rem;
  filter: saturate(0) brightness(0.3);
  transition: 500ms ease;
}

.about__img-sm {
  position: absolute;
  top: 3rem;
  left: 8rem;
  height: 22rem;
  width: 22rem;
  overflow: hidden;
  filter: brightness(1);
  box-shadow: 2rem 2rem 2rem rgba(0, 0, 0, 0.2);
  transition: 500ms ease;
}

.about__img:hover .about__img-sm {
  opacity: 0;
}

.about__img:hover .about__img-lg {
  filter: saturate(1) brightness(1.1);
  box-shadow: 0 3rem 3rem rgba(0, 0, 0, 0.2);
  border: 1rem solid var(--color-bg-4);
  left: 0;
  bottom: 0;
}

.about__right {
  margin-left: 5rem;
}

.about__right p {
  margin: 0 4rem 1.5rem 0;
}

/* =================== SECTION GALLERY =================== */
#gallery {
  margin-top: 12rem;
}

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

.gallery__container p {
  width: 45rem;
}

.swiper-wrapper {
  margin-top: 5rem;
  height: 37rem;
  padding-bottom: 5rem;
}

.swiper-slide {
  border: 0.5rem solid var(--color-bg-4);
  height: fit-content;
  max-height: 36rem;
  overflow: hidden;
  transition: var(--transition);
}

.swiper-slide:hover {
  box-shadow: 0 3rem 3rem rgba(0, 0, 0, 0.4);
}

.swiper-slide img {
  filter: saturate(0);
  transition: var(--transition);
}

.swiper-slide:hover img {
  filter: saturate(1.25);
}

/* FIX ME - to fix the bacground of swiper pagination */
.swiper-pagination {
}

/* =================== SECTION Exhibitions =================== */
#exhibition {
  margin-top: 10rem;
}

.exhibitions__container {
  position: relative;
}

.exhibitions__empty {
  width: 20rem;
  position: absolute;
  right: 14rem;
  top: 0;
}

.exhibitions__head {
  display: grid;
  grid-template-columns: auto 10rem;
  align-items: center;
}

.exhibitions__head > p {
  width: 45rem;
}

.exhibitions__btn {
  color: var(--color-primary-variant);
}

.exhibitions__btn:hover {
  transform: translateY(-1rem);
}

.exhibitions__gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 5rem;
  gap: 3rem;
}

.exhibitions__gallery article {
  border: 0.5rem solid var(--color-bg-4);
  transition: var(--transition);
}

.exhibitions__gallery article:nth-child(1) {
  grid-column: 1/2;
  grid-row: 1/3;
}

.exhibitions__gallery article:nth-child(4) {
  grid-column: 2/4;
  grid-row: 2/3;
}

.exhibitions__gallery article img {
  height: 100%;
  filter: saturate(0);
  transition: var(--transition);
}

.exhibitions__gallery article:hover img {
  filter: saturate(1.3);
}

.exhibitions__gallery article:hover {
  box-shadow: 0 4rem 4rem rgba(0, 0, 0, 0.5);
}

/* =================== SECTION FOOTER =================== */
footer {
  margin-top: 7rem;
}

.footer__container {
  border-top: 0.5rem solid var(--color-bg-4);
  padding-top: 5rem;
}

.footer__head {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.footer__btn {
  width: 5rem;
  height: 5rem;
  border: 0.2rem solid var(--color-primary-variant);
  border-radius: 50%;
  font-size: 3rem;
  color: var(--color-primary-variant);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition);
}

.footer__btn:hover {
  transform: translateY(-1rem);
  border-color: var(--color-primary);
}

.footer__links {
  margin: 3rem 0 5rem;
  display: flex;
  align-items: center;
  gap: 5rem;
}