/* LocalNPC site: one stylesheet, no external fonts or files. Light and dark follow the system setting. */
:root {
  --bg: #ffffff;
  --surface: #f4f6f8;
  --text: #16191d;
  --muted: #4a525c;
  --line: #d3d8de;
  --link: #0b55b8;
  --link-visited: #5b3aa6;
  --accent: #0b55b8;
  --accent-text: #ffffff;
  --code-bg: #eef1f4;
  --todo-bg: #fff4d6;
  --todo-line: #a86b00;
  --callout-bg: #e8f1fd;
  --focus: #c4006a;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --surface: #1a1f25;
    --text: #e8ebef;
    --muted: #aab3bd;
    --line: #333b44;
    --link: #7db4ff;
    --link-visited: #c5a8ff;
    --accent: #7db4ff;
    --accent-text: #0b1420;
    --code-bg: #20262d;
    --todo-bg: #3a2e10;
    --todo-line: #f0b44a;
    --callout-bg: #17283d;
    --focus: #ff7ab8;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-wrap: break-word;
}
.wrap { max-width: 60rem; margin: 0 auto; padding: 0 1rem; }

a { color: var(--link); text-underline-offset: 0.15em; }
a:visited { color: var(--link-visited); }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
main:focus { outline: none; }

.skip-link {
  position: absolute; left: 0.5rem; top: -4rem; z-index: 10;
  background: var(--accent); color: var(--accent-text); padding: 0.5rem 1rem; border-radius: 0.25rem;
  font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: 0.5rem; }
.skip-link:visited { color: var(--accent-text); }

.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.header-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1.5rem; padding-top: 0.75rem; padding-bottom: 0.75rem; }
.brand { font-weight: 700; font-size: 1.2rem; color: var(--text); text-decoration: none; }
.brand:visited { color: var(--text); }
.brand-sub { font-weight: 400; font-size: 0.9rem; color: var(--muted); }
.nav { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; }
.nav a { display: inline-block; padding: 0.35rem 0; color: var(--text); text-decoration: none; border-bottom: 2px solid transparent; }
.nav a:visited { color: var(--text); }
.nav a:hover { border-bottom-color: var(--line); }
.nav a[aria-current="page"] { border-bottom-color: var(--accent); font-weight: 600; }

main { padding-top: 1.5rem; padding-bottom: 3rem; }
h1, h2, h3, h4 { line-height: 1.25; margin: 2rem 0 0.75rem; }
h1 { font-size: 2rem; margin-top: 0.5rem; }
h2 { font-size: 1.5rem; padding-bottom: 0.25rem; border-bottom: 1px solid var(--line); }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }
p, ul, ol, blockquote, pre, .table-wrap { margin: 0 0 1rem; }
ul, ol { padding-left: 1.5rem; }
li { margin: 0.25rem 0; }
li > ul, li > ol { margin-bottom: 0.25rem; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }

.hero { padding: 1rem 0 0.5rem; }
.eyebrow { color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.85rem; margin-bottom: 0.25rem; }
.hero h1 { font-size: 2.5rem; margin-bottom: 0.25rem; }
.lead { font-size: 1.25rem; color: var(--text); }
.cta { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.button { display: inline-block; padding: 0.6rem 1.1rem; border-radius: 0.35rem; background: var(--accent); color: var(--accent-text); font-weight: 600; text-decoration: none; border: 2px solid var(--accent); }
.button:visited { color: var(--accent-text); }
.button-secondary { background: transparent; color: var(--link); }
.button-secondary:visited { color: var(--link); }

.placeholders { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.placeholder { border: 2px dashed var(--muted); border-radius: 0.5rem; padding: 2rem 1rem; text-align: center; background: var(--surface); min-height: 9rem; display: flex; flex-direction: column; justify-content: center; }
.placeholder p { margin: 0.25rem 0; }

.steps li { margin: 0.4rem 0; }

code { font-family: ui-monospace, "Cascadia Mono", Consolas, "Courier New", monospace; font-size: 0.92em; background: var(--code-bg); padding: 0.1em 0.3em; border-radius: 0.2rem; }
pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 0.35rem; padding: 0.85rem 1rem; overflow-x: auto; line-height: 1.45; }
pre code { background: none; padding: 0; font-size: 0.9rem; }
pre.notices { white-space: pre-wrap; overflow-wrap: anywhere; font-family: ui-monospace, "Cascadia Mono", Consolas, "Courier New", monospace; font-size: 0.85rem; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { border: 1px solid var(--line); padding: 0.45rem 0.6rem; text-align: left; vertical-align: top; }
thead th { background: var(--surface); }

blockquote { margin-left: 0; padding: 0.5rem 1rem; border-left: 4px solid var(--line); background: var(--surface); }
blockquote p:last-child { margin-bottom: 0; }
.callout { border-left: 4px solid var(--accent); background: var(--callout-bg); padding: 0.6rem 1rem; margin: 0 0 1rem; border-radius: 0 0.35rem 0.35rem 0; }
.callout-title { font-weight: 700; margin-bottom: 0.25rem; }
.callout p:last-child { margin-bottom: 0; }
.todo { border: 2px solid var(--todo-line); background: var(--todo-bg); padding: 0.6rem 1rem; border-radius: 0.35rem; margin-bottom: 1rem; }
.todo p { margin: 0; }

.crumbs { color: var(--muted); font-size: 0.95rem; margin-bottom: 0; }
.source-note { color: var(--muted); font-size: 0.9rem; margin-top: 2rem; }
.pager { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 1rem; margin-top: 1rem; }

.doc-list { list-style: none; padding: 0; }
.doc-list li { border: 1px solid var(--line); border-radius: 0.4rem; padding: 0.75rem 1rem; margin: 0 0 0.75rem; background: var(--surface); }
.doc-list span { display: block; }
.doc-list .audience { color: var(--muted); font-size: 0.9rem; }

.site-footer { border-top: 1px solid var(--line); background: var(--surface); padding: 1rem 0; font-size: 0.95rem; }
.site-footer p { margin: 0.25rem 0; }

@media (max-width: 40rem) {
  body { font-size: 1rem; }
  h1, .hero h1 { font-size: 1.75rem; }
  h2 { font-size: 1.3rem; }
  .lead { font-size: 1.1rem; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }
@media print { .site-header nav, .skip-link, .pager { display: none; } }