:root {
  --border-color: #d7cec2;
  --bg-color: #f6f3ed;
  --panel-color: #fffaf2;
  --field-bg-color: #fffdf8;
  --strong-bg-color: #241d18;
  --incomplete-stripe-color: #b8b0a6;
  --complete-stripe-color: #5d9b72;
  --minor-span-color: #fff1a8;
  --major-span-color: #ffd2d2;
  --muted-text-color: #74695f;
  --text-color: #241d18;
  --error-text-color: #8a332d;
  color-scheme: light;
  font: 16px/1.5 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text-color);
}

* { box-sizing: border-box; }
button, input { font: inherit; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-color);
  color: var(--text-color);

  > header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 8px;
    padding: 8px max(12px, env(safe-area-inset-right)) 8px max(12px, env(safe-area-inset-left));
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-color);

    > #completion, > h1, > #download { margin: 0; }
    > #completion { color: var(--muted-text-color); font-size: 0.8rem; }
    > h1 { justify-self: center; font-size: 0.95rem; letter-spacing: 0.12em; }
    > h1 {
      display: inline-flex;
      align-items: center;
      gap: 8px;

      > img {
        width: 1.1rem;
        height: 1.1rem;
        display: block;
      }
    }

    > #download {
      justify-self: end;
      padding: 6px 10px;
      border: 1px solid var(--border-color);
      border-radius: 999px;
      background: var(--strong-bg-color);
      color: var(--panel-color);
      white-space: nowrap;
      cursor: pointer;

      &:disabled { opacity: 0.5; cursor: not-allowed; }
    }
  }

  > main {
    width: min(980px, calc(100% - 24px));
    margin: 0 auto;
    padding: 10px 0 24px;

    > #guidelines,
    > #status {
      margin-bottom: 8px;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      background: var(--panel-color);
    }

    > #corpus-label {
      margin: 0 0 8px;
      color: var(--muted-text-color);
      font-size: 0.84rem;
    }

    > #guidelines {
      > h2,
      ul {
        margin: 0;
      }

      > h2 {
        font-size: 0.95rem;
        margin-bottom: 6px;
      }

      li + li {
        margin-top: 4px;
      }

      li::marker {
        color: var(--muted-text-color);
      }
    }

    > #status {
      > p { margin: 0; }
    }

    > #annotations {
      display: grid;
      gap: 10px;

      > .annotation-item {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        padding: 12px;
        border: 1px solid var(--border-color);
        border-left-width: 6px;
        border-radius: 12px;
        background: var(--panel-color);
        border-left-color: var(--incomplete-stripe-color);

        &[data-complete="true"] {
          border-left-color: var(--complete-stripe-color);
        }

        > .segment-id {
          grid-column: 1 / -1;
          margin: 0;
          font-size: 0.98rem;
          font-weight: 600;
        }

        > :is(.source, .translation, .score) {
          display: grid;
          gap: 6px;
        }

        > :is(.source, .translation) {
          > header {
            display: flex;
            align-items: baseline;
            gap: 8px;

            > :is(h3, p) { margin: 0; }
            > h3 { font-size: 0.9rem; }
            > p { color: var(--muted-text-color); font-size: 0.78rem; }
          }

          > div {
            padding: 10px 12px;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            background: var(--field-bg-color);
            white-space: pre-wrap;
            word-break: break-word;
            line-height: 1.58;
            font-size: 0.94rem;

            > em { color: var(--muted-text-color); }
          }
        }

        > .score {
          grid-column: 1 / -1;
          display: grid;
          gap: 6px;

          > label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;

            > span { font-size: 0.84rem; font-weight: 600; }
          }

          > .range-anchors {
            position: relative;
            min-height: 2.15rem;
            color: var(--muted-text-color);
            font-size: 0.7rem;

            > span { position: absolute; top: 0; width: 6.2rem; line-height: 1.35; text-align: center; }
            > span:first-child { left: 0; text-align: left; }
            > span:nth-child(2) { left: 33%; transform: translateX(-50%); }
            > span:nth-child(3) { left: 66%; transform: translateX(-50%); }
            > span:last-child { right: 0; text-align: right; }
          }
        }
      }
    }
  }
}

input[type="number"] {
  width: 72px;
  padding: 7px 9px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--field-bg-color);
  color: var(--text-color);
}

input[type="range"] { width: 100%; margin: 0; accent-color: var(--text-color); }
input[type="range"][data-unset="true"] { opacity: 0.35; accent-color: var(--muted-text-color); }

mark {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin: 0 1px;
  padding: 1px 3px;
  border-radius: 6px;
  color: var(--text-color);

  > span {
    display: inline-flex;
    gap: 3px;
    margin-left: 2px;
    user-select: none;
  }

  > span > button {
    padding: 2px 6px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--field-bg-color);
    color: var(--text-color);
    font-size: 0.76rem;
    cursor: pointer;
  }

  > span > button[aria-pressed="true"] { background: var(--strong-bg-color); color: var(--panel-color); }
  > span > button:last-child { background: var(--bg-color); }
}

mark[data-severity="minor"] { background: var(--minor-span-color); }
mark[data-severity="major"] { background: var(--major-span-color); }

@media (max-width: 760px) {
  body {
    > header {
      padding-left: max(12px, env(safe-area-inset-left));
      padding-right: max(12px, env(safe-area-inset-right));
      > #completion { font-size: 0.74rem; }
      > h1 { font-size: 0.9rem; }
      > #download { padding: 6px 9px; font-size: 0.78rem; }
    }

    > main {
      width: min(100%, calc(100% - 16px));
      padding-top: 8px;

      > #annotations > .annotation-item {
        grid-template-columns: 1fr;
      }

      > #annotations > .annotation-item > :is(.source, .translation) > header {
        flex-wrap: wrap;
      }

      > #annotations > .annotation-item > .score > .range-anchors {
        min-height: 3.15rem;

        > span { width: 4.8rem; font-size: 0.66rem; }
      }
    }
  }
}