/* Corporate A/G Research Extension — public portal V2 stylesheet.
   Static, no external dependencies, GitHub Pages compatible. */

:root {
  --bg: #f8f8f5;
  --surface: #ffffff;
  --fg: #1c1c1f;
  --fg-soft: #3c3c40;
  --muted: #6b6b70;
  --rule: #e3e3df;
  --rule-strong: #c2c2bd;
  --accent: #2a4d75;
  --accent-soft: #e9eef5;
  --accent-fg: #1d3a59;
  --warn-bg: #fbf3df;
  --warn-fg: #6b5300;
  --warn-rule: #d6b94e;
  --forbid-bg: #f7e8e8;
  --forbid-fg: #6a1818;
  --forbid-rule: #c97777;
  --ok-bg: #ebf2ec;
  --ok-fg: #1f4a23;
  --ok-rule: #79a37c;
  --uncomf-bg: #fdf1e3;
  --uncomf-fg: #6a3a00;
  --uncomf-rule: #d99a44;
  --code-bg: #f1efe8;
  --hero-bg-1: #2a4d75;
  --hero-bg-2: #324d6b;
  --hero-fg: #f8f8f5;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; text-decoration-thickness: 1.5px; }

img { max-width: 100%; height: auto; }

/* ---------- header / nav ---------- */
header.site-head {
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
}
.site-head-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 1rem; letter-spacing: 0.01em; color: var(--fg); }
.brand a { color: inherit; }
.brand-sub { color: var(--muted); font-size: 0.88rem; margin-left: 0.4rem; }

nav.site-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
  position: sticky; top: 0; z-index: 10;
}
.nav-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 1.25rem;
  display: flex; gap: 0.4rem; flex-wrap: wrap;
}
nav.site-nav a {
  display: inline-block;
  padding: 0.7rem 0.85rem;
  font-size: 0.92rem;
  color: var(--fg-soft);
  border-bottom: 2px solid transparent;
}
nav.site-nav a:hover { color: var(--accent); text-decoration: none; }
nav.site-nav a.current {
  color: var(--accent-fg); font-weight: 600;
  border-bottom-color: var(--accent);
}

/* ---------- hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--hero-bg-1), var(--hero-bg-2));
  color: var(--hero-fg);
}
.hero-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 3rem 1.25rem 2.6rem 1.25rem;
}
.hero-eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.78);
  margin-bottom: 0.6rem;
}
.hero h1 {
  margin: 0 0 0.6rem 0;
  font-size: 2.0rem;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.005em;
}
.hero p.lead {
  margin: 0 0 1.4rem 0;
  font-size: 1.08rem;
  color: rgba(255,255,255,0.92);
  max-width: 60ch;
}
.badge-row {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
}
.badge {
  display: inline-flex; align-items: center;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.32);
  color: var(--hero-fg);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.83rem;
}
.badge.warn { background: rgba(255,221,135,0.14); border-color: rgba(255,221,135,0.45); }

/* secondary hero / page header for non-index pages */
.page-head {
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
}
.page-head-inner {
  max-width: 1080px; margin: 0 auto; padding: 2rem 1.25rem 1.4rem 1.25rem;
}
.page-head-eyebrow { font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); margin: 0 0 0.4rem 0; }
.page-head h1 { font-size: 1.65rem; margin: 0 0 0.4rem 0; line-height: 1.25; font-weight: 700; }
.page-head p.lead { margin: 0; color: var(--fg-soft); max-width: 70ch; }

/* ---------- main wrapper ---------- */
main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem 1.25rem;
}

main h2 {
  font-size: 1.32rem;
  margin: 2.2rem 0 0.7rem 0;
  font-weight: 700;
  letter-spacing: -0.005em;
}
main h2:first-child { margin-top: 0; }
main h3 { font-size: 1.05rem; margin: 1.3rem 0 0.5rem 0; font-weight: 600; }
main h4 { font-size: 0.95rem; margin: 1.1rem 0 0.4rem 0; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }

main p, main ul, main ol { font-size: 1rem; }
main ul, main ol { padding-left: 1.4rem; }
main li { margin: 0.35rem 0; }

/* ---------- cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.4rem 0 1.6rem 0;
}
.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 1rem 1.1rem;
}
.card h3 { margin: 0 0 0.45rem 0; font-size: 1rem; font-weight: 700; color: var(--accent-fg); }
.card p { margin: 0; color: var(--fg-soft); font-size: 0.94rem; }

/* ---------- metric panel ---------- */
.metrics {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 1.2rem 1.4rem;
  margin: 1.4rem 0;
}
.metrics h3 { margin: 0 0 0.7rem 0; font-size: 1rem; font-weight: 700; }
.metrics dl {
  margin: 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.45rem 1.4rem;
}
.metrics dt { color: var(--muted); font-size: 0.93rem; }
.metrics dd { margin: 0; color: var(--fg); font-size: 0.95rem; font-weight: 500; }

/* ---------- callout boxes ---------- */
.callout {
  margin: 1.2rem 0;
  padding: 1rem 1.15rem;
  border-radius: 6px;
  border-left: 4px solid var(--rule-strong);
  background: var(--surface);
  border-top: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.callout p:last-child, .callout ul:last-child, .callout ol:last-child { margin-bottom: 0; }
.callout p:first-child, .callout h3:first-child, .callout h4:first-child { margin-top: 0; }
.callout.accent { background: var(--accent-soft); border-left-color: var(--accent); }
.callout.warn { background: var(--warn-bg); border-left-color: var(--warn-rule); color: var(--warn-fg); }
.callout.uncomf { background: var(--uncomf-bg); border-left-color: var(--uncomf-rule); color: var(--uncomf-fg); }
.callout.forbid { background: var(--forbid-bg); border-left-color: var(--forbid-rule); color: var(--forbid-fg); }
.callout.ok { background: var(--ok-bg); border-left-color: var(--ok-rule); color: var(--ok-fg); }

.callout h3 { color: inherit; font-size: 1rem; }

/* ---------- tables ---------- */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--surface);
  margin: 1rem 0 1.5rem 0;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.94rem;
}
th, td {
  text-align: left;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
th {
  background: #f3f1ea;
  font-weight: 600;
  color: var(--fg-soft);
  white-space: nowrap;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: rgba(42,77,117,0.04); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.code, th.code { font-family: "SF Mono", Menlo, Consolas, monospace; font-size: 0.86rem; color: var(--muted); }

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.7rem;
  margin: 1rem 0 1.5rem 0;
}
.metric-tile {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 0.85rem 1rem;
}
.metric-label { color: var(--muted); font-size: 0.8rem; letter-spacing: 0.02em; text-transform: uppercase; }
.metric-value { font-size: 1.22rem; font-weight: 700; margin-top: 0.2rem; color: var(--fg); }
.metric-sub { color: var(--muted); font-size: 0.83rem; margin-top: 0.1rem; }

/* ---------- code & pre ---------- */
code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  background: var(--code-bg);
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 0.88em;
  color: var(--accent-fg);
}
pre {
  background: var(--code-bg);
  padding: 0.8rem 1rem;
  overflow-x: auto;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.86rem;
  border-left: 3px solid var(--rule-strong);
  border-radius: 4px;
}
pre code { background: none; padding: 0; color: inherit; font-size: inherit; }

/* ---------- footer ---------- */
footer.site-foot {
  border-top: 1px solid var(--rule);
  background: var(--surface);
  margin-top: 2.5rem;
}
.foot-inner {
  max-width: 1080px; margin: 0 auto;
  padding: 1.5rem 1.25rem 2rem 1.25rem;
  font-size: 0.88rem;
  color: var(--muted);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.foot-inner .small { font-size: 0.83rem; }
.foot-inner ul { padding-left: 0; list-style: none; }
.foot-inner li { margin: 0.2rem 0; }

@media (max-width: 640px) {
  .foot-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.6rem; }
  .hero p.lead { font-size: 1rem; }
}

/* ---------- evidence list ---------- */
.evidence-group { margin: 1.6rem 0; }
.evidence-group h3 { margin-bottom: 0.5rem; }
.evidence-list { list-style: none; padding-left: 0; }
.evidence-list li {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 0.85rem 1rem;
  margin: 0.45rem 0;
}
.evidence-list a { font-weight: 600; }
.evidence-list .desc { display: block; color: var(--fg-soft); font-size: 0.92rem; margin-top: 0.18rem; }

/* ---------- doc page ---------- */
.doc-summary {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 1.2rem 1.4rem;
  margin: 1.2rem 0 1.5rem 0;
}
.doc-summary h2 { margin-top: 0; }
.source-basis {
  background: #fbfaf3;
  border: 1px dashed var(--rule-strong);
  border-radius: 6px;
  padding: 0.7rem 0.95rem;
  margin: 1rem 0;
  font-size: 0.88rem;
  color: var(--muted);
}
.source-basis strong { color: var(--fg-soft); }

/* ---------- utility ---------- */
.muted { color: var(--muted); }
.center { text-align: center; }
.small { font-size: 0.88rem; }
.tight-list li { margin: 0.15rem 0; }
hr.section { border: none; border-top: 1px solid var(--rule); margin: 2.4rem 0 1.6rem 0; }