*, *:before, *:after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

img {
  display: block;
}

body {
  font-family: "trade-gothic-next", sans-serif;
  font-weight: 300;
  font-style: normal;
  letter-spacing: -.08rem;
  margin: 0;
  background: white;
}

p {
  margin-bottom: .5rem;
}

#logox {
  font-family: "times new roman", times, serif;
  font-style: italic;
  letter-spacing: -.13rem;
}

#logo {
  font-weight: 800;
  letter-spacing: -.13rem;
}

.space {
  display: grid;
  grid-template-columns: 1fr;
  margin: auto 3rem 3rem;
}

.navBar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  grid-auto-rows: 1fr;
  place-items: center;
  margin: 3rem 0 2rem;
  grid-gap: 2rem;
}

.navButton {
  position: relative;
  display: inline-block;
  padding: 7px 12px;
  font-size: 1rem;
  text-shadow: 0 1px 0 #fff;
  text-align: center;
  text-decoration: none;
  color: black;
  background: linear-gradient(to bottom, #fdfdfd 0%, #e0e0e0 50%, #d4d4d4 100%);
  border: 1px solid #aaa;
  border-radius: 12px;
  box-shadow:
    inset 0 2px 4px rgba(255, 255, 255, 0.9),
    inset 0 -3px 6px rgba(0, 0, 0, 0.1),
    0 4px 10px rgba(0, 0, 0, 0.3),
    0 0 6px rgba(255, 255, 255, 0.4);
  transition: all 0.2s ease;
  background-clip: padding-box;
  margin: 3px;
  width: 100%;
  min-width: max-content;
}

.navButton:before {
  content: "";
  position: absolute;
  top: 6px;
  left: 6px;
  right: 6px;
  height: 40%;
  border-radius: 10px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.8), transparent);
  z-index: 0;
  pointer-events: none;
}

.navButton:hover {
  background: linear-gradient(to bottom, #ffffff 0%, #ececec 50%, #dcdcdc 100%);
  box-shadow:
    inset 0 2px 4px rgba(255, 255, 255, 1),
    inset 0 -2px 4px rgba(0, 0, 0, 0.15),
    0 4px 14px rgba(0, 0, 0, 0.4),
    0 0 8px rgba(255, 255, 255, 0.5);
}

.navButton:active {
  background: linear-gradient(to bottom, #dcdcdc 0%, #c8c8c8 100%);
  box-shadow:
    inset 0 3px 5px rgba(0, 0, 0, 0.3),
    0 2px 5px rgba(0, 0, 0, 0.3);
  transform: translateY(2px);
}

.navButton:focus-visible {
  outline: 2px solid rgba(0, 0, 255, 0.6);
  outline-offset: 2px;
}

/* Active nav button states — shared backdrop */
.nav-xd.navButton,
.nav-nd.navButton,
.nav-3d.navButton,
.nav-2d.navButton,
.nav-1d.navButton {
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 0;
}

/* Active nav: red (xD SPACE, 2D) */
.nav-xd.navButton,
.nav-2d.navButton {
  background: rgba(255, 0, 0, 0.15);
  box-shadow: 0 0 60px 30px rgba(255, 0, 0, 0.15);
}

/* Active nav: green (nD, 1D) */
.nav-nd.navButton,
.nav-1d.navButton {
  background: rgba(0, 255, 0, 0.15);
  box-shadow: 0 0 60px 30px rgba(0, 255, 0, 0.15);
}

/* Active nav: blue (3D) */
.nav-3d.navButton {
  background: rgba(0, 0, 255, 0.15);
  box-shadow: 0 0 60px 30px rgba(0, 0, 255, 0.15);
}

/* Grids — shared layout */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(22vmax, 1fr));
  grid-gap: 2rem;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 0;
}

/* Grid colors */
#xdspace.grid,
#twoD.grid {
  background: rgba(255, 0, 0, 0.13);
  box-shadow: 0 0 60px 30px rgba(255, 0, 0, 0.15);
}

#nD.grid,
#oneD.grid {
  background: rgba(0, 255, 0, 0.13);
  box-shadow: 0 0 60px 30px rgba(0, 255, 0, 0.15);
}

#threeD.grid {
  background: rgba(0, 0, 255, 0.13);
  box-shadow: 0 0 60px 30px rgba(0, 0, 255, 0.15);
}

.cell img {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: visible;
  transform-style: preserve-3d;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  text-align: center;
  min-width: stretch;
  max-width: 100%;
  max-height: 100%;
}

.cell img:hover {
  transform: perspective(600px) rotateY(-25deg) scale(1.1);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35);
  z-index: 100;
}

.title {
  margin: 1rem auto 0;
  font-size: 1.3rem;
  letter-spacing: normal;
}

.info {
  letter-spacing: normal;
}

.infoBig {
  font-size: clamp(1em, 3vw + 1em, 2em);
  padding: 1rem;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    inset 0 -2px 4px rgba(0, 0, 0, 0.1),
    0 2px 6px rgba(0, 0, 0, 0.15);
  align-content: end;
  letter-spacing: normal;
}

article {
  margin: auto;
  padding: 1rem;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    inset 0 -2px 4px rgba(0, 0, 0, 0.1),
    0 2px 6px rgba(0, 0, 0, 0.15);
  letter-spacing: normal;
  display: flex;
  flex-flow: column wrap;
  font-size: 1.2rem;
}

article h1 {
  letter-spacing: normal;
  font-weight: 300;
  margin: .5rem 0;
}

article img {
  width: 100%;
  height: auto;
  margin: auto;
  margin-bottom: .5rem;
}

.singleItemWrapper {
  background: rgba(255, 0, 0, 0.13);
  box-shadow: 0 0 60px 30px rgba(255, 0, 0, 0.15);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 0;
  width: 35vh;
  margin: auto;
}

article a {
  text-decoration: none;
  color: #00f;
}

article a:hover {
  font-weight: bold;
}

/* Loading page */
body#loading {
  margin: 0;
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.logo-container {
  width: 800px;
  height: 800px;
  position: relative;
}

.logo {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: contain;
  animation: spin 6s linear infinite;
  transition: opacity 1s ease;
  opacity: 0;
}

.logo.visible {
  opacity: 1;
}

@keyframes spin {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(360deg); }
}