/* The web help's one stylesheet: system fonts, light and dark from the
 * browser's setting, one column of at most 48 rem, nothing loaded from
 * elsewhere.  Copied to help/style.css by tools/help_site.py. */

:root {
  --bg: #ffffff;
  --fg: #1b1d21;
  --muted: #5a606b;
  --line: #d5d8de;
  --panel: #f3f4f6;
  --link: #0b5cad;
  --code-bg: #eceef1;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --fg: #e6e8eb;
    --muted: #a3a9b3;
    --line: #353a42;
    --panel: #1e2125;
    --link: #79b4f2;
    --code-bg: #262a30;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow-wrap: break-word;
}

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

.top, main, nav.pages, footer {
  max-width: 48rem;
  margin: 0 auto;
  padding: 0 16px;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.top .home { font-weight: 600; text-decoration: none; color: var(--fg); }
.top .switch { white-space: nowrap; }

h1 { font-size: 1.75rem; line-height: 1.25; margin: 1.25rem 0 0.75rem; }
h2 { font-size: 1.35rem; line-height: 1.3; margin: 2rem 0 0.5rem; }
h3 { font-size: 1.1rem; line-height: 1.3; margin: 1.5rem 0 0.5rem; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--code-bg);
  border-radius: 3px;
  padding: 0.05em 0.3em;
  /* A quote of the panel keeps its spaces: PLOT  4/4 has two. */
  white-space: pre-wrap;
}

ul, ol { padding-left: 1.4rem; }
li + li { margin-top: 0.25rem; }

.table { overflow-x: auto; margin: 1rem 0; }
table { border-collapse: collapse; min-width: 50%; }
th, td {
  border: 1px solid var(--line);
  padding: 0.35rem 0.6rem;
  text-align: left;
  vertical-align: top;
}
th { background: var(--panel); }
th.c, td.c { text-align: center; }
th.r, td.r { text-align: right; }

figure { margin: 0; }
img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 4px;
}
figcaption { color: var(--muted); font-size: 0.9rem; margin-top: 0.35rem; }

.shot { margin: 1rem 0 1.5rem; }
.shots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}

ol.index { list-style: none; padding: 0; }
ol.index > li {
  border-top: 1px solid var(--line);
  padding: 0.75rem 0;
  margin: 0;
}
ol.index > li > a { font-weight: 600; font-size: 1.1rem; }
ol.index p { margin: 0.25rem 0 0; color: var(--muted); }

nav.pages {
  margin-top: 2.5rem;
  border-top: 1px solid var(--line);
}
nav.pages h2 { font-size: 1rem; margin: 1rem 0 0.5rem; }
nav.pages ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}
nav.pages li + li { margin-top: 0; }
nav.pages a[aria-current="page"] {
  color: var(--fg);
  font-weight: 600;
  text-decoration: none;
}

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}