.portal-page { min-height: 100svh; background: #0d0e10; color: #f7f7f3; }
.portal {
  min-height: 100svh;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  padding: clamp(1.15rem, 3vw, 2.5rem);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% -20%, rgba(49,140,231,.22), transparent 44%),
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    #0d0e10;
  background-size: auto, 4rem 4rem, 4rem 4rem, auto;
}
.portal__header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.portal__header a { display: inline-block; }
.portal__header img { width: clamp(8.5rem, 14vw, 12rem); }
.portal__header p { margin: .15rem 0 0; color: #9b9da4; font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; }
.portal__intro { padding: clamp(3.5rem, 8.5vh, 7rem) 0 clamp(2rem, 5vh, 4rem); }
.portal__kicker { margin: 0 0 1rem; color: #8e929b; font: 710 .7rem/1.2 var(--font-display); letter-spacing: .18em; text-transform: uppercase; }
.portal__intro h1 { margin: 0; max-width: 13ch; font: 480 clamp(2.75rem, 7vw, 7.8rem)/.9 var(--font-display); letter-spacing: -.06em; }
.portal__intro > p:last-child { margin: 1.25rem 0 0; color: #a5a7ad; }
.universe-selector { align-self: end; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid #303238; border-bottom: 1px solid #303238; }
.universe-tile { --tile-accent: #318ce7; position: relative; min-height: clamp(15rem, 29vh, 22rem); display: flex; flex-direction: column; padding: 1.25rem; border-right: 1px solid #303238; color: #f7f7f3; text-decoration: none; overflow: hidden; transition: color 220ms ease, background 220ms ease; }
.universe-tile:first-child { border-left: 1px solid #303238; }
.universe-tile::before { content: ""; position: absolute; inset: auto 0 0; height: 0; background: var(--tile-accent); transition: height 260ms var(--ease); }
.universe-tile::after { content: attr(data-word); position: absolute; right: -1.3rem; bottom: 1.6rem; color: rgba(255,255,255,.035); font: 760 clamp(3rem, 5vw, 6rem)/.8 var(--font-display); letter-spacing: -.07em; writing-mode: vertical-rl; }
.universe-tile > * { position: relative; z-index: 1; }
.universe-tile__number { color: #777b84; font: 650 .66rem/1 var(--font-display); letter-spacing: .12em; }
.universe-tile__mark { width: 2.25rem; height: .18rem; margin: auto 0 1rem; background: var(--tile-accent); transition: width 220ms ease, background 220ms ease; }
.universe-tile__name { font: 680 clamp(1.05rem, 1.75vw, 1.7rem)/1 var(--font-display); letter-spacing: -.035em; }
.universe-tile__line { min-height: 4.8em; margin-top: .85rem; color: #a5a7ad; font-size: clamp(.75rem, .9vw, .88rem); line-height: 1.55; }
.universe-tile__action { display: flex; justify-content: space-between; align-items: center; margin-top: 1.4rem; font: 700 .65rem/1 var(--font-display); letter-spacing: .12em; text-transform: uppercase; opacity: .72; }
.universe-tile:hover, .universe-tile:focus-visible { color: #08090a; outline: none; }
.universe-tile:hover::before, .universe-tile:focus-visible::before { height: 100%; }
.universe-tile:hover .universe-tile__line, .universe-tile:focus-visible .universe-tile__line { color: rgba(8,9,10,.72); }
.universe-tile:hover .universe-tile__number, .universe-tile:focus-visible .universe-tile__number { color: rgba(8,9,10,.55); }
.universe-tile:hover .universe-tile__mark, .universe-tile:focus-visible .universe-tile__mark { width: 100%; background: #08090a; }
.portal__footer { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; padding-top: 1.25rem; color: #787b83; font-size: .66rem; letter-spacing: .08em; text-transform: uppercase; }
.portal__footer a { margin-left: auto; }
.portal__footer a + a { margin-left: 0; }

/* Baseline mobile-first. */
.portal { display: block; overflow: visible; }
.portal__header p { max-width: 10.5rem; text-align: right; line-height: 1.45; }
.portal__intro { padding-block: 4rem 2.5rem; }
.universe-selector { display: block; border-bottom: 0; }
.universe-tile { min-height: 10.75rem; border-bottom: 1px solid #303238; border-left: 1px solid #303238; }
.universe-tile__mark { margin-top: 2.5rem; }
.universe-tile__line { min-height: 0; max-width: 19rem; }
.portal__footer { margin-top: 2rem; }
.portal__footer a { margin-left: 0; }

@media (min-width: 36rem) {
  .portal { display: grid; }
  .portal__header p { max-width: none; text-align: left; line-height: inherit; }
  .portal__intro { padding: clamp(3.5rem, 8.5vh, 7rem) 0 clamp(2rem, 5vh, 4rem); }
  .universe-selector { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .universe-tile { min-height: 13rem; border-left: 0; }
  .universe-tile:nth-child(odd) { border-left: 1px solid #303238; }
  .universe-tile__mark { margin: auto 0 1rem; }
  .universe-tile__line { min-height: 4.8em; max-width: none; }
}

@media (min-width: 68.01rem) {
  .portal { overflow: hidden; }
  .universe-selector { grid-template-columns: repeat(5, minmax(0, 1fr)); border-bottom: 1px solid #303238; }
  .universe-tile { min-height: clamp(15rem, 29vh, 22rem); border-bottom: 0; border-left: 0; }
  .universe-tile:nth-child(odd) { border-left: 0; }
  .universe-tile:first-child { border-left: 1px solid #303238; }
  .portal__footer { margin-top: 0; }
  .portal__footer a { margin-left: auto; }
  .portal__footer a + a { margin-left: 0; }
}