* {
  box-sizing: border-box;
}

:root {
  --light: white;
  --lesslight: #efefef;
  --dark: #404040;
  --moredark: black;
  --link: royalblue;
  --border: #d0d7de;

  border-top: 5px solid var(--dark);

  color: var(--dark);
  font-family: system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5em;
  color-scheme: light dark;
}

body {
  margin: 0;
  padding: 0 20px 20px;

  background-color: var(--light);
}

.Dumby {
  h1 {
    line-height: 1em;
  }

  img,
  picture,
  video,
  canvas,
  svg {
    display: block;
    max-width: 100%;
    height: auto;
  }

  a {
    outline: none;

    color: var(--dark);
  }

  a:hover {
    text-decoration-color: var(--link);
  }

  pre {
    overflow: auto;
    margin: 0.5em 0;
    padding: 0.5em;

    background-color: var(--lesslight);
  }

  code {
    background-color: var(--lesslight);
  }

  blockquote {
    padding-left: 1rem;

    border-left: 0.25rem solid var(--dark);
  }

  button,
  input,
  textarea,
  select {
    font-size: 1em;
  }

  input {
    padding: 0.5em;

    border: 1px solid var(--dark);
    border-radius: 0.25em;

    background-color: var(--lesslight);
  }

  button,
  .button,
  input[type="submit"] {
    display: inline-block;
    padding: 0.5em;

    border: none;
    border-radius: 0.25em;

    background-color: var(--dark);

    color: var(--light);
    text-align: center;

    cursor: pointer;
    text-decoration: none;
  }

  button + button,
  .button + .button,
  input[type="submit"] + input[type="submit"] {
    margin-left: 1em;
  }

  button:hover,
  .button:hover,
  input[type="submit"]:hover {
    background-color: var(--moredark);

    color: var(--lesslight);
  }

  /* Center normal-layout DumbyMap pages like a markdown document */
  &[data-layout="normal"] {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;

    &::after {
      animation: 1.5s forwards fade-out cubic-bezier(0.44, 0.18, 0.86, -0.21);
    }
  }

  &[data-layout] .dumby-block {
    padding: 1rem 1rem 1rem 2rem;

    position: relative;

    counter-increment: block;

    &::before {
      content: '';
      height: calc(100% - 2rem);

      position: absolute;
      left: 0.8rem;

      border-left: 0.5em solid var(--border);
    }

    &.focus {
      &::before {
        border-color: var(--link);
      }

      &::after {
        content: counter(block) '/' attr(data-total);
        padding: 0.3rem 0.5rem;

        position: absolute;
        left: 50%;
        top: 50%;
        z-index: 9999;

        border: solid transparent;
        border-radius: 0.25em;

        background: var(--dark);

        color: var(--light);
        font-size: 1.5em;
        font-weight: bold;

        transform: translate(-50%, -50%);
        opacity: 0;
        animation: 1.5s forwards fade-out cubic-bezier(0.44, 0.18, 0.86, -0.21);
      }
    }
  }

  /* ── Typography scoped to rendered content ── */

  .SemanticHtml {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    height: 100%;
    gap: 1rem;
    overflow-y: auto;

    /* Gray out text not focused */
    &:has(.dumby-block.focus) {
      color: var(--lesslight);

      .dumby-block.focus {
        color: initial;
      }
    }

    :has(> .mapclay, > [data-placeholder]) {
      display: flex;
      gap: 0.5em;

      background-color: white;
    }

    /* If map not in showcase, add border when focused */
    .mapclay {
      border: 3px solid var(--light);

      &.focus {
        border: 3px solid var(--link);
      }

      &[data-render='unfulfilled'] {
        border: 3px solid crimson;

        opacity: 0.6;
      }
    }

    [data-placeholder] {
      border: 3px solid gray;
      flex-grow: 0;

      & > * {
        opacity: 0.3;
      }
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
      margin-top: 1.5em;
      margin-bottom: 0.5em;

      color: var(--moredark);
      font-weight: 600;
      line-height: 1.3;
    }

    h1 {
      padding-bottom: 0.35em;

      border-bottom: 2px solid var(--border);

      font-size: 2em;
      line-height: 1em;
    }

    h2 {
      padding-bottom: 0.25em;

      border-bottom: 1px solid var(--border);

      font-size: 1.5em;
    }

    h3 {
      font-size: 1.25em;
    }

    h1:first-child,
    h2:first-child,
    h3:first-child {
      margin-top: 0;
    }

    h4 {
      font-size: 1em;
    }

    h5 {
      font-size: 0.875em;
    }

    h6 {
      color: #656d76;
      font-size: 0.85em;
    }

    p {
      margin-top: 0;
      margin-bottom: 1em;
      overflow-wrap: break-word;
      hyphens: auto;
    }

    a {
      color: var(--link);
      text-decoration: none;

      &:hover {
        text-decoration: underline;
      }
    }

    code {
      display: inline;
      padding: 0.2em 0.4em;

      border-radius: 6px;

      background-color: var(--lesslight);

      font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas,
        Liberation Mono, monospace;
      font-size: 0.875em;
    }

    pre {
      width: 100%;
      margin-bottom: 1em;
      padding: 1rem;

      border-radius: 8px;

      background-color: var(--lesslight);

      font-size: 0.875em;
      line-height: 1.6;
      overflow-x: auto;

      code {
        padding: 0;

        border-radius: 0;

        background-color: transparent;

        color: inherit;
        font-size: inherit;
        white-space: pre;
      }
    }

    ul,
    ol {
      margin-top: 0;
      margin-bottom: 1em;
      padding-left: 2em;
    }

    li {
      margin-bottom: 0.3em;

      & + li {
        margin-top: 0.25em;
      }
    }

    table {
      display: block;
      overflow: auto;
      width: max-content;
      max-width: 100%;
      margin-bottom: 1em;
      border-collapse: collapse;
    }

    th,
    td {
      padding: 6px 13px;

      border: 1px solid var(--border);

      text-align: left;
    }

    th {
      background-color: var(--lesslight);

      font-weight: 600;
    }

    tr:nth-child(even) td {
      background-color: var(--lesslight);
    }

    blockquote {
      margin-bottom: 1em;
      padding: 0 1em;

      border-left: 4px solid var(--border);

      color: #656d76;

      > :first-child {
        margin-top: 0;
      }

      > :last-child {
        margin-bottom: 0;
      }
    }

    hr {
      height: 2px;
      margin: 1.5em 0;

      border: none;

      background-color: var(--border);
    }

    img {
      max-width: 100%;
      height: auto;

      border-radius: 6px;
    }
  }

}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --light: #222;
    --lesslight: #333;
    --dark: #eee;
    --moredark: #fefefe;
    --border: #444;
  }

  *:focus {
    outline: var(--light);
    box-shadow: 0 0 0 0.25em var(--link);
  }

  .button a {
    color: var(--light);
  }
}

/* Printing */
@media print {
  :root {
    border-top: none;
  }
}