/*
 * The landing page of the published site, docs/redirect-page.html. It sits
 * outside MkDocs, so it carries the theme itself. The colours repeat
 * client/src/theme/tokens.ts, like extra.css does.
 */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/inter-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/inter-latin-700-normal.woff2") format("woff2");
}

:root {
  --primary: #003d73;
  --primary-dark: #002546;
  --banner: #002546;
  --primary-tint: #eaf1fb;
  --page: #f5f6fa;
  --card: #ffffff;
  --border: #dadee7;
  --text: #1a1f29;
  --muted: #47536b;
  --link: #003d73;
  --button-text: #ffffff;
  /* The turquoise is 2.85:1 on white, too faint for a focus ring there. */
  --focus: #002546;
  --radius: 8px;
  color-scheme: light dark;
}

/* The header keeps its navy field in both schemes, as on the main site. */
@media (prefers-color-scheme: dark) {
  :root {
    --page: #0e131b;
    --card: #171e29;
    --border: #2c3647;
    --text: #e8ecf3;
    --muted: #a9b3c6;
    --link: #8cc8e6;
    --primary-tint: #1f2a3a;
    /* A navy button disappears on the dark card, so it turns light. */
    --primary: #8cc8e6;
    --primary-dark: #b3dbef;
    --button-text: #0e131b;
    --focus: #e8ecf3;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    "Segoe UI",
    Arial,
    sans-serif;
  font-size: 1rem;
  line-height: 1.5;
}

/*
 * The name is page text in Inter next to the mark, not the lockup image: an
 * SVG shown through <img> cannot use the page's font, so its text falls back
 * to a narrower face and the lockup sits off centre.
 */
.banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: var(--banner);
  padding: 1.25rem 1rem;
  color: #ffffff;
}

.banner img {
  flex: none;
  width: 3rem;
  height: 3rem;
}

.banner .name {
  font-size: 1.5rem;
  font-weight: 700;
}

main {
  max-width: 44rem;
  margin: 2rem auto;
  padding: 0 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

h1 {
  margin: 0 0 0.25rem;
  font-size: 1.75rem;
}

.lead {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

thead th {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 700;
}

tbody tr:last-child th,
tbody tr:last-child td {
  border-bottom: none;
}

tbody th {
  font-weight: 700;
}

.note {
  display: block;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 400;
}

/* Both actions are at least 44 px high, the smallest comfortable target. */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 7rem;
  padding: 0 1rem;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.button.primary {
  background: var(--primary);
  color: var(--button-text);
}

.button.primary:hover {
  background: var(--primary-dark);
}

.button.secondary {
  border: 2px solid var(--link);
  color: var(--link);
}

.button.secondary:hover {
  background: var(--primary-tint);
}

.button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.none {
  color: var(--muted);
}

footer {
  max-width: 44rem;
  margin: 0 auto 2rem;
  padding: 0 1rem;
  color: var(--muted);
  font-size: 0.875rem;
}

footer a {
  color: var(--link);
}

/*
 * On a narrow screen each version becomes a block: its name on one line and
 * the two actions side by side below it. The column headings are then
 * redundant, so they are hidden from sight but kept for screen readers.
 */
@media (max-width: 30rem) {
  thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }

  tbody tr {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
  }

  tbody tr:last-child {
    border-bottom: none;
  }

  tbody th {
    grid-column: 1 / -1;
  }

  tbody th,
  td {
    display: block;
    padding: 0;
    border-bottom: none;
  }

  .button {
    width: 100%;
    min-width: 0;
  }

  .none {
    display: flex;
    align-items: center;
    min-height: 44px;
  }
}