/* tools - one small self-contained stylesheet, light and dark. */

:root {
  --bg: #ffffff;
  --fg: #17191d;
  --muted: #5c6472;
  --line: #e4e7ec;
  --card: #ffffff;
  --accent: #2f6fed;
  --accent-fg: #ffffff;
  --code-bg: #f6f8fa;
  --code-fg: #24292f;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 16px rgba(16, 24, 40, .06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --fg: #e8eaed;
    --muted: #9aa3b2;
    --line: #262a33;
    --card: #161920;
    --accent: #6f9dff;
    --accent-fg: #0b0d12;
    --code-bg: #14171d;
    --code-fg: #d7dbe2;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .3);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: 900px; margin: 0 auto; padding: 0 1.35rem; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* header / nav */
.site { border-bottom: 1px solid var(--line); }
header.site { position: sticky; top: 0; z-index: 10; background: var(--bg); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 58px; gap: 1rem; }
.brand { font-weight: 700; font-size: 1.05rem; color: var(--fg); letter-spacing: -.02em; }
header.site nav { display: flex; gap: 1.1rem; }
header.site nav a { color: var(--muted); font-size: .92rem; }

/* hero */
.hero { padding: 3.25rem 0 2rem; }
.hero h1 { margin: 0 0 .5rem; font-size: clamp(1.75rem, 4.5vw, 2.5rem); line-height: 1.15; letter-spacing: -.03em; }
.hero p { margin: 0 0 .35rem; max-width: 62ch; color: var(--muted); font-size: 1.08rem; }
.hero .meta { font-size: .9rem; }

/* overview cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; padding-bottom: .5rem; }
.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  padding: 1.15rem 1.25rem;
  transition: border-color .15s, box-shadow .15s;
}
.card:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.card h2 { margin: 0 0 .35rem; font-size: 1.02rem; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--muted); font-size: .9rem; }
.card-links { display: flex; flex-wrap: wrap; gap: .35rem 1rem; margin-top: .85rem !important; font-size: .9rem; }
.card-links .sep { color: var(--line); margin: 0 .45rem; }

/* modules */
.module { padding: 1.75rem 0 2.25rem; border-top: 1px solid var(--line); }
.module > header { margin-bottom: 1rem; }
.module h2 { margin: .25rem 0 .3rem; font-size: 1.45rem; letter-spacing: -.02em; }
.module > header p { margin: 0 0 .9rem; color: var(--muted); max-width: 65ch; }
.docs { max-width: 72ch; }
.docs h3 { margin: 1.9rem 0 .55rem; font-size: 1.02rem; }
.docs p { margin: 0 0 .8rem; }
.docs ul, .docs ol { margin: 0 0 .9rem; padding-left: 1.35rem; }
.docs li { margin: .2rem 0; }
.docs li code { font-size: .86em; }

/* button */
.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  padding: .5rem .95rem;
  border: 1px solid transparent;
  border-radius: 8px;
  font: inherit;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.06); text-decoration: none; }
.btn[disabled] { opacity: .55; cursor: default; filter: none; }

/* code */
code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: .88em;
  overflow-wrap: anywhere;
}
p code, li code, td code, .hero code {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: .08rem .38rem;
}
pre {
  position: relative;
  margin: 0 0 1rem;
  padding: .85rem 1rem;
  background: var(--code-bg);
  color: var(--code-fg);
  border: 1px solid var(--line);
  border-radius: 10px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: .85rem;
  line-height: 1.55;
}
pre code { background: none; border: 0; padding: 0; color: inherit; }
pre .copy {
  position: absolute;
  top: .5rem;
  right: .5rem;
  padding: .2rem .55rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  color: var(--muted);
  font: inherit;
  font-size: .75rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity .12s;
}
pre:hover .copy, pre .copy:focus { opacity: 1; }

/* tables */
table { width: 100%; border-collapse: collapse; margin: 0 0 1rem; font-size: .89rem; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
th { color: var(--muted); font-weight: 600; }
tbody tr:last-child td { border-bottom: 0; }

/* notes */
.note { color: var(--muted); font-size: .88rem; }
.error { color: #d64545; }
@media (prefers-color-scheme: dark) { .error { color: #ff8a8a; } }

/* footer */
footer.site { margin-top: 2rem; border-top: 1px solid var(--line); padding: 1.5rem 0 3rem; color: var(--muted); font-size: .88rem; }
footer.site p { margin: 0; }

details summary { cursor: pointer; color: var(--muted); }

@media (max-width: 560px) {
  header.site nav { display: none; }
}