:root {
  color-scheme: light dark;
  --bg: light-dark(hsl(0 0 100%), hsl(0 0% 0%));
  --fg: light-dark(hsl(0 0% 0%), hsl(0 0 100%));
  --padding: max(4svmin, 1rem);
  font-size: 16px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-weight: normal;
  user-select: none;
}

body {
  margin: 0;
  width: 100svw;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr auto;
  align-items: center;
  justify-content: center;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  overflow: clip;
}

#highlighter {
  display: none;
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--padding);
  width: 100vw;
  height: 100vh;
  padding: calc(var(--padding) * 2);
}

.card {
  --card-padding: clamp(1rem, 10cqw, 1.75rem);
  --rx: 0deg;
  --ry: 0deg;
  --lightAngle: 0deg;
  --lightAlpha: 0deg;

  &:hover {
    --rx: var(--hoverRX, 0deg);
    --ry: var(--hoverRY, 0deg);
    --lightAngle: var(--hoverLightAngle, 0deg);
    --lightAlpha: var(--hoverLightAlpha, 0);
  }

  container-type: inline-size;
  container-name: card;
  list-style: none;
  position: relative;

  .card-perspective-wrapper {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transform-origin: center center;
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .content {
    --cardBg: var(--bg);
    aspect-ratio: 650 / 975;
    max-height: 100%;
    max-width: 100%;
    background: url(/images/surface-imperfections-4.png),
      linear-gradient(
        var(--lightAngle, 0deg),
        light-dark(hsl(0 0 100% / 0.8), hsl(0 0 0 / 0.8)) 0%,
        light-dark(hsl(0 0 100% / 0.6), hsl(0 0 0 / 0.6)) 100%
      );
    background-blend-mode: soft-light, normal;
    overflow: clip;
    border-radius: 0.5rem;
    display: flex;
    flex-direction: column;
    justify-content: end;
    gap: 0.5rem;
    color-scheme: light;
    box-shadow: 0 0 0 1px light-dark(hsl(0 0% 0% / 0.1), hsl(0 0 100% / 0.2));
    transition: transform 100ms ease-in-out;
    transform: rotateY(var(--ry, 0deg)) rotateX(var(--rx, 0deg));
  }

  *:not(img) {
    position: relative;
    z-index: 1;
    font-size: 0.75rem;
    line-height: 1rem;
    margin: 0;
  }

  .texts {
    z-index: 3;
    color: var(--fg);
    background: linear-gradient(
      to bottom,
      transparent 0%,
      light-dark(hsl(0 0 100% / 0.9), hsl(0 0% 0% / 0.9)) 90%
    );
    display: flex;
    flex-direction: column;
    padding: 25% var(--card-padding) var(--card-padding);
  }

  h2 .actor,
  h3,
  p {
    font-size: clamp(0.5rem, 6cqi, 1rem);
    line-height: 1.1em;
    transform: translateZ(500px);
  }

  h2 {
    font-size: clamp(1rem, 8cqi, 1.5rem);
    line-height: 1em;
    text-wrap: pretty;
    display: flex;
    flex-direction: column-reverse;
    gap: 0.4rem;
    align-items: baseline;

    .actor {
      font-style: italic;
      opacity: 0.75;
      font-family: Georgia, "Times New Roman", Times, serif;
    }
  }

  p {
    text-wrap: balance;
    margin-top: 0.5rem;
  }

  &.card-empire .content {
    color-scheme: dark;
  }

  img {
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: bottom;
  }

  .symbol {
    width: clamp(1rem, 15cqmin, 2rem);
    aspect-ratio: 1 / 1;
    background: url(images/alliance.svg) center center no-repeat;
    background-size: contain;
    position: absolute;
    top: var(--card-padding);
    left: var(--card-padding);
    z-index: 4;
    transition: rotate 400ms cubic-bezier(0.2, 0.25, 0, 1);

    .card-empire & {
      background-image: url(images/empire.svg);
    }
  }

  .gloss {
    pointer-events: none;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: 0.5rem;
    background: linear-gradient(
      var(--lightAngle, 0deg),
      rgba(255, 255, 255, var(--lightAlpha, 1)) 0%,
      rgba(255, 255, 255, 0) 80%
    );
    transition: all 100ms ease-in-out;
    mask-image: url(images/surface-imperfections-3.png);
    z-index: 5;
    mix-blend-mode: hard-light;
  }
}

@container card (max-width: 90px) {
  .card .texts {
    opacity: 0;
  }
}
Animated 3D reflective cards
