/* app-lb & serverctl documentation. Static, no JavaScript.
   One stylesheet for every page; pages differ only in their <main>. */

:root {
  --bg: #ffffff;
  --bg-raised: #f6f7f8;
  --text: #1c2024;
  --text-soft: #5b6570;
  --accent: #0b6bcb;
  --accent-soft: #e3effb;
  --border: #dde2e7;
  --code-bg: #f2f4f6;
  --warn-bg: #fff7e6;
  --warn-border: #e6c07a;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --bg-raised: #1b1f24;
    --text: #e6e9ec;
    --text-soft: #9aa4ae;
    --accent: #66b2ff;
    --accent-soft: #103050;
    --border: #2b3239;
    --code-bg: #1f242a;
    --warn-bg: #2b2517;
    --warn-border: #7a6534;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

/* -- layout: fixed-ish sidebar, readable main column ---------------------- */

.wrap {
  display: flex;
  min-height: 100vh;
  max-width: 72rem;
  margin: 0 auto;
}

nav.side {
  flex: 0 0 15rem;
  padding: 2rem 1.5rem;
  border-right: 1px solid var(--border);
}

nav.side .brand {
  font-weight: 700;
  font-size: 1.1rem;
  display: block;
  margin-bottom: 0.25rem;
  color: var(--text);
  text-decoration: none;
}

nav.side .tagline {
  color: var(--text-soft);
  font-size: 0.85rem;
  margin: 0 0 1.5rem;
}

nav.side ul { list-style: none; margin: 0; padding: 0; }
nav.side li { margin: 0; }

nav.side a {
  display: block;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  color: var(--text-soft);
  text-decoration: none;
}

nav.side a:hover { color: var(--text); background: var(--bg-raised); }
nav.side a[aria-current="page"] {
  color: var(--accent);
  background: var(--accent-soft);
  font-weight: 600;
}

nav.side .group {
  margin: 1.25rem 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
}

main {
  flex: 1;
  min-width: 0;
  padding: 2.5rem 3rem 5rem;
  max-width: 50rem;
}

@media (max-width: 52rem) {
  .wrap { flex-direction: column; }
  nav.side { border-right: none; border-bottom: 1px solid var(--border); padding-bottom: 1rem; }
  main { padding: 1.5rem 1.25rem 4rem; }
}

/* -- typography ----------------------------------------------------------- */

h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 0.5rem; }
h1 + .lede { color: var(--text-soft); font-size: 1.05rem; margin-top: 0; }
h2 { font-size: 1.35rem; margin: 2.5rem 0 0.75rem; padding-top: 0.5rem; }
h3 { font-size: 1.05rem; margin: 1.75rem 0 0.5rem; }
p, ul, ol { margin: 0.75rem 0; }
li { margin: 0.3rem 0; }
a { color: var(--accent); }
hr { border: none; border-top: 1px solid var(--border); margin: 2.5rem 0; }

/* -- code ----------------------------------------------------------------- */

code, pre {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
  font-size: 0.86em;
}

code {
  background: var(--code-bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  overflow-x: auto;
  line-height: 1.5;
}

pre code { background: none; padding: 0; }

/* -- tables --------------------------------------------------------------- */

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
  font-size: 0.92rem;
}

th, td {
  text-align: left;
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-soft);
}

td code { white-space: nowrap; }

/* -- callouts -------------------------------------------------------------- */

.note, .warn {
  border-left: 3px solid var(--accent);
  background: var(--bg-raised);
  padding: 0.75rem 1rem;
  border-radius: 0 8px 8px 0;
  margin: 1.25rem 0;
}

.warn { border-left-color: var(--warn-border); background: var(--warn-bg); }

/* -- cards on the index ---------------------------------------------------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.cards a {
  display: block;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.15rem;
  text-decoration: none;
  color: var(--text);
  background: var(--bg-raised);
}

.cards a:hover { border-color: var(--accent); }
.cards strong { display: block; margin-bottom: 0.3rem; color: var(--accent); }
.cards span { color: var(--text-soft); font-size: 0.9rem; }

footer {
  margin-top: 4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 0.85rem;
}