/* corivus.online — self-hosted stylesheet. No web fonts, no external resources. */
:root {
  --bg: #f6faf9;
  --surface: #ffffff;
  --soft: #e2f2ef;
  --line: #cde5e0;
  --ink: #10241f;
  --muted: #4f665e;
  --brand: #0f9b8e;
  --brand-dark: #0b7a70;
  --brand-ink: #ffffff;
  --accent: #f2a541;
  --warn-bg: #fff6e6;
  --warn-line: #f2d39b;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 36, 31, .06), 0 8px 24px rgba(16, 36, 31, .06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --maxw: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.7 var(--font);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-dark); text-underline-offset: 2px; }
a:hover { color: var(--ink); }
h1, h2, h3, h4 { line-height: 1.25; margin: 1.6em 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(1.9rem, 1.3rem + 2.6vw, 2.9rem); margin-top: .2em; letter-spacing: -.02em; }
h2 { font-size: clamp(1.35rem, 1.1rem + 1vw, 1.75rem); }
h3 { font-size: 1.2rem; }
p, ul, ol { margin: 0 0 1em; }
li { margin-bottom: .35em; }
code { font-family: var(--mono); font-size: .92em; background: var(--soft); padding: .1em .35em; border-radius: 6px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff; padding: .5em 1em; z-index: 20; }
.skip:focus { left: 1em; }

/* Top disclosure bar */
.disclosure-bar {
  background: var(--ink);
  color: #e8f4f1;
  font-size: .875rem;
  line-height: 1.5;
  padding: .55rem 16px;
  text-align: center;
}
.disclosure-bar a { color: #9fe3da; }
.disclosure-bar strong { color: #fff; }

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.site-header .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: .8rem 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .6rem 1.5rem;
}
.brand { display: flex; align-items: center; gap: .6rem; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 1.25rem; letter-spacing: -.02em; }
.brand img { width: 34px; height: 34px; }
.brand small { display: block; font-weight: 500; font-size: .75rem; color: var(--muted); letter-spacing: 0; }
.site-nav { display: flex; flex-wrap: wrap; gap: .25rem .4rem; }
.site-nav a { color: var(--ink); text-decoration: none; font-size: .95rem; font-weight: 600; padding: .35rem .7rem; border-radius: 999px; }
.site-nav a:hover, .site-nav a[aria-current="page"] { background: var(--soft); color: var(--brand-dark); }

/* Layout */
.layout {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2rem 16px 3rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}
.layout.with-aside { grid-template-columns: minmax(0, 1fr) 300px; }
@media (max-width: 960px) {
  .layout.with-aside { grid-template-columns: minmax(0, 1fr); }
}
main { min-width: 0; }
.article, .page {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1.25rem, 1rem + 2vw, 2.75rem);
}
.page { max-width: 860px; margin: 0 auto; width: 100%; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; font-weight: 700; color: var(--brand-dark); margin: 0 0 .4rem; }
.lede { font-size: 1.18rem; color: var(--muted); }
.meta { display: flex; flex-wrap: wrap; gap: .3rem 1.2rem; font-size: .9rem; color: var(--muted); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: .7rem 0; margin: 1.2rem 0 1.4rem; }
.meta strong { color: var(--ink); }

/* Disclosure box after h1 */
.disclosure-box {
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  border-left: 5px solid var(--accent);
  border-radius: 10px;
  padding: .9rem 1.1rem;
  font-size: .95rem;
  margin: 1rem 0 1.4rem;
}
.disclosure-box p { margin: 0 0 .4em; }
.disclosure-box p:last-child { margin: 0; }

.note {
  background: var(--soft);
  border-radius: 10px;
  padding: .9rem 1.1rem;
  font-size: .95rem;
  margin: 1.2rem 0;
}
.note p:last-child { margin-bottom: 0; }

/* Table of contents */
.toc { background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 1rem 1.2rem; margin: 1.5rem 0; }
.toc h2 { font-size: 1rem; margin: 0 0 .5rem; }
.toc ol { margin: 0; padding-left: 1.2rem; columns: 2 220px; column-gap: 2rem; font-size: .95rem; }

/* Figures */
figure { margin: 1.8rem 0; }
figure img { width: 100%; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); }
figcaption { font-size: .88rem; color: var(--muted); margin-top: .55rem; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 1.2rem 0; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; padding: .6rem .75rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--soft); font-weight: 700; }

/* Call to action */
.cta {
  background: linear-gradient(135deg, #0f9b8e 0%, #0b6f66 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
  margin: 2rem 0;
}
.cta h3 { margin: 0 0 .35rem; color: #fff; font-size: 1.15rem; }
.cta p { margin: 0 0 .9rem; color: #e3f6f3; }
.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: .1rem;
  background: #fff;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  padding: .7rem 1.4rem .5rem;
  border-radius: 10px;
  box-shadow: 0 2px 0 rgba(0, 0, 0, .15);
  line-height: 1.3;
}
.btn:hover { background: #fdf6e9; color: var(--ink); }
.btn .label { font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: #8a5a00; }
.btn-dark { background: var(--brand); color: #fff; }
.btn-dark:hover { background: var(--brand-dark); color: #fff; }
.btn-dark .label { color: #fde7b8; }
.btn-block { display: flex; width: 100%; }
.cta-note { font-size: .82rem; margin: .7rem 0 0; color: #d4efeb; }
.cta .cta-note { color: #d4efeb; }
.aside-card .cta-note { color: var(--muted); }

/* Aside */
.aside { display: flex; flex-direction: column; gap: 1.2rem; }
.aside-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem; box-shadow: var(--shadow); font-size: .95rem; }
.aside-card h2 { font-size: 1.05rem; margin: 0 0 .5rem; }
.aside-card ul { padding-left: 1.1rem; margin: 0; }
@media (min-width: 961px) { .aside .sticky { position: sticky; top: 1rem; } }

/* Fact list */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .8rem; margin: 1.4rem 0; padding: 0; list-style: none; }
.facts li { background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: .8rem 1rem; margin: 0; font-size: .93rem; }
.facts b { display: block; font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }

.sources ol { font-size: .92rem; word-break: break-word; }
.legal dl { display: grid; grid-template-columns: minmax(140px, 220px) 1fr; gap: .4rem 1rem; margin: 1rem 0 1.5rem; }
.legal dt { font-weight: 700; }
.legal dd { margin: 0; }
@media (max-width: 560px) { .legal dl { grid-template-columns: 1fr; } .legal dd { margin-bottom: .6rem; } }
address { font-style: normal; }

/* Footer */
.site-footer { background: var(--ink); color: #c9ddd8; font-size: .9rem; margin-top: 2rem; }
.site-footer .inner { max-width: var(--maxw); margin: 0 auto; padding: 2.4rem 16px 2rem; display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 2rem; }
@media (max-width: 800px) { .site-footer .inner { grid-template-columns: 1fr; } }
.site-footer h2 { color: #fff; font-size: .95rem; margin: 0 0 .6rem; text-transform: uppercase; letter-spacing: .06em; }
.site-footer a { color: #9fe3da; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .3rem; }
.site-footer .fine { grid-column: 1 / -1; border-top: 1px solid rgba(255, 255, 255, .12); padding-top: 1.2rem; font-size: .82rem; color: #9fb7b1; }
.site-footer .fine p { margin: 0 0 .5em; }

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1714;
    --surface: #12211d;
    --soft: #183530;
    --line: #23413a;
    --ink: #e5f2ef;
    --muted: #a3bcb5;
    --brand-dark: #5fd3c6;
    --warn-bg: #2a2212;
    --warn-line: #5c4720;
    --shadow: none;
  }
  .disclosure-bar { background: #050c0a; }
  .site-footer { background: #050c0a; }
  .btn { color: #10241f; }
  .btn:hover { color: #10241f; }
  .btn-dark, .btn-dark:hover { color: #fff; }
  figure img { background: #f6faf9; }
}