:root {
  --bg: #ffffff;
  --surface: #f6f7f9;
  --border: #e2e5ea;
  --text: #1c2330;
  --muted: #5d6676;
  --accent: #2f5fd0;
  --accent-soft: #e8eefc;
  --ok: #1f8a4c;
  --ok-soft: #e3f4ea;
  --warn: #a5630b;
  --warn-soft: #fbf0dd;
  --radius: 10px;
  --code-kw: #8a3b9e; --code-str: #1f7a4d; --code-num: #a6510f; --code-com: #7a8494; --code-fn: #2a52be;
  --font-display: "Newsreader", "Iowan Old Style", Georgia, serif;
  --font-body: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12151b;
    --surface: #1a1f27;
    --border: #2b323d;
    --text: #e6e9ef;
    --muted: #9aa3b2;
    --accent: #7fa2ff;
    --accent-soft: #1f2a44;
    --ok: #5fd08f;
    --ok-soft: #173325;
    --warn: #f0b35a;
    --warn-soft: #3a2b14;
    --code-kw: #d49af0; --code-str: #7fd6a4; --code-num: #f2b177; --code-com: #8792a3; --code-fn: #9db7ff;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #12151b; --surface: #1a1f27; --border: #2b323d; --text: #e6e9ef; --muted: #9aa3b2;
  --accent: #7fa2ff; --accent-soft: #1f2a44; --ok: #5fd08f; --ok-soft: #173325; --warn: #f0b35a; --warn-soft: #3a2b14;
  --code-kw: #d49af0; --code-str: #7fd6a4; --code-num: #f2b177; --code-com: #8792a3; --code-fn: #9db7ff;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 var(--font-body);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--font-mono); font-size: 0.9em; overflow-wrap: anywhere; }
h1, h2, .brand, .stats b { font-family: var(--font-display); font-weight: 600; text-wrap: balance; }
h1 { font-size: 2rem; line-height: 1.25; margin: 1.2rem 0 0.6rem; }
h2 { font-size: 1.3rem; margin: 2.2rem 0 0.8rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3rem; }
h3 { font-size: 1.05rem; margin: 0 0 0.5rem; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }

.site-header { border-bottom: 1px solid var(--border); background: var(--surface); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 56px; flex-wrap: wrap; }
.brand { font-weight: 650; color: var(--text); display: inline-flex; align-items: center; gap: 0.55rem; }
.brand a { color: inherit; }
.brand a:hover { text-decoration: none; }
.brand-logo { width: 32px; height: 32px; display: block; }
.brand-mark { display: inline-grid; place-items: center; width: 1.6em; height: 1.6em; border-radius: 6px; background: var(--accent); color: #fff; margin-right: 0.3em; }
.main-nav { display: flex; gap: 1.2rem; }
.main-nav a { color: var(--muted); }
.main-nav a.active, .main-nav a:hover { color: var(--text); text-decoration: none; }
.site-footer { border-top: 1px solid var(--border); margin-top: 3rem; padding: 1.2rem 0; color: var(--muted); font-size: 0.9rem; }

.hero { padding: 1.5rem 0 0.5rem; }
.hero p { max-width: 760px; color: var(--muted); }
.stats { display: flex; gap: 2rem; margin: 1.2rem 0; flex-wrap: wrap; }
.stats div { display: flex; flex-direction: column; }
.stats b { font-size: 1.8rem; }
.stats span { color: var(--muted); font-size: 0.9rem; }

.exp-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 0.6rem; }
.exp-tile { display: flex; justify-content: space-between; align-items: center; padding: 0.7rem 0.9rem;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text); }
.exp-tile:hover { border-color: var(--accent); text-decoration: none; }
.exp-tile b { color: var(--muted); font-weight: 500; }

.cards { display: grid; gap: 0.8rem; }
.card { border: 1px solid var(--border); border-radius: var(--radius); padding: 0.9rem 1rem; background: var(--bg); }
.card:hover { border-color: var(--accent); }
.card-link { color: inherit; display: block; }
.card-link:hover { text-decoration: none; }
.card h3 { margin-bottom: 0.2rem; }
.card p { margin: 0 0 0.5rem; font-size: 0.92rem; }
.card .meta { font-size: 0.85rem; margin-top: 0.4rem; }

.tags { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.tag { font-size: 0.78rem; padding: 0.1rem 0.55rem; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--muted); }
.tag.exp { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.tag.status-reproduced { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.tag.status-partial, .tag.status-in-progress { background: var(--warn-soft); color: var(--warn); border-color: transparent; }

.browse { display: grid; grid-template-columns: 230px 1fr; gap: 1.5rem; align-items: start; }
.facets { position: sticky; top: 1rem; }
.facet { margin-bottom: 1.2rem; }
.facet h4 { margin: 0 0 0.4rem; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.facet label { display: flex; justify-content: space-between; gap: 0.5rem; padding: 0.2rem 0.4rem; border-radius: 6px; cursor: pointer; font-size: 0.92rem; }
.facet label:hover { background: var(--surface); }
.facet input { margin-right: 0.4rem; }
.facet .n { color: var(--muted); font-size: 0.85rem; }
.clear { font-size: 0.85rem; }
.toolbar { display: flex; gap: 0.6rem; margin-bottom: 0.5rem; flex-wrap: wrap; }
.toolbar input, .toolbar select { font: inherit; padding: 0.45rem 0.6rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); }
.toolbar input { flex: 1 1 220px; min-width: 0; }

.crumbs { margin-top: 1rem; font-size: 0.9rem; color: var(--muted); overflow-wrap: anywhere; }
.entry-head h1 { margin-top: 0.2rem; }
.entry-head > p { margin: 0.6rem 0 0; }
.links { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.8rem; }
.btn { display: inline-block; padding: 0.3rem 0.75rem; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); font-size: 0.9rem; }
.btn:hover { border-color: var(--accent); text-decoration: none; }
.summary { max-width: 860px; }

.figure-pair { margin: 1.4rem 0 2rem; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.pair figure { margin: 0; border: 1px solid var(--border); border-radius: var(--radius); padding: 0.6rem; background: #fff; }
.pair figcaption { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: #5d6676; margin-bottom: 0.4rem; }
.pair img { width: 100%; height: auto; display: block; }
.pair .missing { display: grid; place-items: center; min-height: 160px; background: var(--surface); }
.pair .missing figcaption { color: var(--muted); }
.agreement { margin: 0.6rem 0 0; padding: 0.6rem 0.8rem; border-left: 3px solid var(--accent); background: var(--surface); border-radius: 0 8px 8px 0; font-size: 0.95rem; }

.steps code { background: var(--surface); padding: 0.1rem 0.35rem; border-radius: 5px; }
.code { position: relative; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.code pre { margin: 0; max-height: 520px; overflow: auto; }
.code pre code.hljs, .code pre code { padding: 1rem; display: block; font-size: 0.85rem; background: var(--surface); }
.copy { position: absolute; top: 0.5rem; right: 0.6rem; z-index: 1; font: inherit; font-size: 0.8rem; padding: 0.25rem 0.6rem; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--text); cursor: pointer; }

table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
.kv th { text-align: left; color: var(--muted); font-weight: 500; width: 190px; vertical-align: top; }
th, td { padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--border); text-align: left; overflow-wrap: anywhere; }
.files th { color: var(--muted); font-weight: 500; }
.prose { max-width: 760px; }

@media (max-width: 760px) {
  .browse { grid-template-columns: 1fr; }
  .facets { position: static; }
  .pair { grid-template-columns: 1fr; }
  .kv th { width: auto; }
  h1 { font-size: 1.45rem; }
}

/* code highlighting (highlight.js classes), from the theme tokens */
.hljs { color: var(--text); background: var(--surface); }
.hljs-keyword, .hljs-built_in, .hljs-literal { color: var(--code-kw); }
.hljs-string, .hljs-regexp { color: var(--code-str); }
.hljs-number, .hljs-symbol { color: var(--code-num); }
.hljs-comment, .hljs-meta { color: var(--code-com); font-style: italic; }
.hljs-title, .hljs-function { color: var(--code-fn); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.table-scroll { overflow-x: auto; }
.tool { padding: 1rem 1.2rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); margin-top: 1.5rem; }
.tool h2 { border: 0; margin-top: 0; padding-bottom: 0; }
.tool p { max-width: 760px; }
.pair .credit { margin: 0.5rem 0 0; font-size: 0.78rem; line-height: 1.4; color: #5d6676; }
.pair .credit a { color: #2f5fd0; }
.versions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin: 1rem 0 0; font-size: 0.92rem; }
.versions select { font: inherit; padding: 0.35rem 0.5rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); max-width: 100%; }
.notice { margin: 0.8rem 0 0; padding: 0.6rem 0.8rem; border-left: 3px solid var(--warn); background: var(--warn-soft); border-radius: 0 8px 8px 0; }
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.8rem; }
.cat-tile { display: flex; flex-direction: column; gap: 0.3rem; padding: 0.9rem 1rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text); }
.cat-tile:hover { border-color: var(--accent); text-decoration: none; }
.cat-tile h3 { margin: 0; font-family: var(--font-display); font-size: 1.15rem; }
.cat-tile p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.tag.cat { background: var(--text); color: var(--bg); border-color: transparent; }
.planned { display: grid; gap: 0.7rem; padding-left: 1.1rem; }
.planned li { line-height: 1.45; }
.main-nav { flex-wrap: wrap; row-gap: 0.3rem; }

/* --- Newtrinos Index additions --- */
.tag.param { background: transparent; }
.tag.status-verified { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.tag.status-curated { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.tag.status-candidate { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.prose p { margin: 0.6rem 0; }
.hero .toolbar { max-width: 640px; margin: 1rem 0; }
.hero .toolbar input { font: inherit; padding: 0.6rem 0.8rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); width: 100%; }
.entry-head .summary { color: var(--muted); margin: 0.2rem 0 0.6rem; }
.meta-line { font-size: 0.85rem; }
.kv td p { margin: 0; }
.kv td p + p { margin-top: 0.4rem; }
.fair { display: inline-block; font-size: 0.78rem; padding: 0.05rem 0.5rem; border-radius: 999px; margin-right: 0.15rem; }
.fair.yes { background: var(--ok-soft); color: var(--ok); }
.fair.no { background: var(--warn-soft); color: var(--warn); text-decoration: line-through; }
.usedby { padding-left: 1.1rem; }
.usedby li { margin: 0.25rem 0; }