*,
*::after,
*::before {
  box-sizing: border-box;
}

:root {
  font-size: 18px;
  --color-text: #fff;
  --color-bg: #000;
  --color-link: #fff;
  --color-link-hover: #a2a2a2;
  --grid-item-translate: 0px;
  --grid-item-ratio: 1;
  --grid-item-radius: 20px;
  --grid-gap: 1vw;
  --grid-columns: 3;
  --grid-width: 100%;
  --grid-max-width: 1200px;
}

body {
  margin: 0;
  color: var(--color-text);
  background-color: var(--color-bg);
  font-family: "Cormorant Garamond", serif;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Page Loader */
.js .loading::before,
.js .loading::after {
  content: '';
  position: fixed;
  z-index: 4000;
}

.js .loading::before {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
}

.js .loading::after {
  top: 50%;
  left: 50%;
  width: 60px;
  height: 60px;
  margin: -30px 0 0 -30px;
  border-radius: 50%;
  opacity: 0.4;
  background: var(--color-link);
  animation: loaderAnim 0.7s linear infinite alternate forwards;
}

@keyframes loaderAnim {
  to {
    opacity: 1;
    transform: scale3d(0.5, 0.5, 1);
  }
}

a {
  text-decoration: none;
  color: var(--color-link);
  outline: none;
  cursor: pointer;
}

a:hover {
  color: var(--color-link-hover);
  outline: none;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  pointer-events: none;
}

.nav__back,
.nav__title {
  pointer-events: auto;
}

.nav__back {
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.nav__back:hover {
  opacity: 1;
}

.nav__title {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 300;
  margin: 0;
  letter-spacing: 0.1em;
}

/* Grid */
main {
  display: grid;
  place-items: center;
  width: 100%;
  position: relative;
}

.columns {
  width: var(--grid-width);
  max-width: var(--grid-max-width);
  position: relative;
  padding: 20vh 0;
  display: grid;
  align-items: start;
  grid-template-columns: repeat(var(--grid-columns), 1fr);
  gap: var(--grid-gap);
}

.column {
  width: 100%;
  position: relative;
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: 100%;
  will-change: transform;
}

.column__item {
  margin: 0;
  position: relative;
  z-index: 1;
}

.column__item-imgwrap {
  width: 100%;
  aspect-ratio: var(--grid-item-ratio);
  height: auto;
  position: relative;
  overflow: hidden;
  border-radius: var(--grid-item-radius);
  cursor: pointer;
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.95);
  z-index: 5000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.lightbox.is-active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 8px;
  background-size: cover;
  background-position: center;
}

.lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-size: 2rem;
  color: #fff;
  cursor: pointer;
  background: none;
  border: none;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.lightbox__close:hover {
  opacity: 1;
}

.column__item-img {
  position: absolute;
  top: calc(-1 * var(--grid-item-translate));
  left: calc(-1 * var(--grid-item-translate));
  height: calc(100% + var(--grid-item-translate) * 2);
  width: calc(100% + var(--grid-item-translate) * 2);
  background-size: cover;
  background-position: 50% 20%;
  backface-visibility: hidden;
}

/* Footer */
.outro {
  display: grid;
  place-items: center;
  margin: 40vh 0;
}

.outro__title {
  font-weight: 300;
  font-size: clamp(1.5rem, 10vw, 2rem);
}

/* Mobile - single centered column */
@media (max-width: 768px) {
  .columns {
    grid-template-columns: 1fr;
    padding: 10vh 2vw;
    gap: 1vw;
  }

  .column {
    display: contents;
  }

  .column__item {
    width: 50%;
    margin: 0 auto;
  }

  .column__item-imgwrap {
    aspect-ratio: 0.75;
    border-radius: 10px;
  }

  .nav {
    padding: 1rem 1.5rem;
  }

  .outro {
    margin: 10vh 0;
  }
}