base.css

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

  html,
  body {
    block-size: 100%;
    font-family: sans-serif;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    margin: 0;
  }

  ul[class] {
    list-style: none;
    margin: 0;
    padding: 0;
  }
}

@layer theme {
  :root {
    --brand-purple: rgb(149 5 205);
    --brand-blue: rgb(67 0 179);
    --brand-pink: rgb(237 0 143);
    --brand-yellow: rgb(255 242 47);
    --brand-dark: rgb(0 0 0);
    --brand-light: rgb(255 255 255);
    --gradient-purple-pink: linear-gradient(
      38deg,
      var(--brand-purple) 0%,
      var(--brand-pink) 100%
    );
    --gradient-purple-pink-shorter: linear-gradient(
      38deg in hsl shorter hue,
      var(--brand-purple) 0%,
      var(--brand-pink) 100%
    );
    --gradient-yellow-pink-shorter: linear-gradient(
      38deg in hsl shorter hue,
      var(--brand-yellow),
      var(--brand-pink)
    );
  }

  body {
    background: var(--body-background, #fff);
    color: var(--body-color, var(--brand-dark));
  }

  .card {
    padding: 1rem;
    border: 1px solid var(--card-primary-color, var(--brand-purple));
    border-radius: 1rem;
  }

  .card :where(h1, h2, h3, h4, h5, h6) {
    color: var(--card-header-color, rgba(35, 33, 21, 1));
  }

  .card img {
    inline-size: 100%;
    height: auto;
    aspect-ratio: 16/9;
    object-fit: contain;
    background-color: var(--card-primary-color, var(--brand-pink));
  }

  .card-body {
    color: var(--card-body-color, rgb(35 33 21 / 0.65));
    line-height: 1.4;
  }

  .card-footer {
    display: flex;
    gap: 1rem;
  }

  .card-footer > * {
    flex: 1;
  }

  .special {
    background-color: purple;
  }

  .grid-container {
    display: grid;
    place-items: center;
  }

  .button {
    display: flex;
    justify-content: center;
    padding: 0.5rem 1rem;
    background: var(--button-background, var(--gradient-purple-pink));
    border-radius: 4px;
    color: #fff;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    align-items: center;
  }

  .button.secondary {
    background: #eee;
    color: black;
  }

  .noto {
    font-family: "Noto Emoji", sans-serif;
  }
}