/* escom.it: white paper, ink blue, red for what is urgent. */
:root {
  --bg: #fbfbf9;
  --ink: #17212b;
  --muted: #5d6874;
  --rule: #dde1e5;
  --blue: #154a7d;
  --red: #b42318;
  --amber: #9a5b07;
  --soft: #f1f3f5;
  --sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: Charter, "Sitka Text", Cambria, Georgia, serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #12161a; --ink: #e4e8ec; --muted: #9aa5b1; --rule: #2a3138; --blue: #7fb2e5; --red: #f0897e; --amber: #e2ad5b; --soft: #1a2026; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 var(--sans); }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }
.wrap { max-width: 50rem; margin: 0 auto; padding: 0 16px; }

.top { border-bottom: 3px solid var(--ink); }
.top-row { display: flex; align-items: baseline; gap: 1.5rem; padding-top: 16px; padding-bottom: 12px; flex-wrap: wrap; }
.brand { font: 800 1.45rem/1 var(--sans); color: var(--ink); letter-spacing: -0.03em; }
.brand span { color: var(--muted); font-weight: 400; }
.brand:hover { text-decoration: none; }
.menu { display: flex; gap: 1.2rem; flex-wrap: wrap; font-size: 0.95rem; }
.menu a { color: var(--ink); font-weight: 600; }
.menu a.on { color: var(--blue); box-shadow: inset 0 -2px 0 var(--blue); }

main.wrap { padding-top: 2.2rem; padding-bottom: 3rem; }
h1, h2, h3 { line-height: 1.25; }
h1 { font: 700 2rem/1.2 var(--serif); margin: 0 0 0.6rem; letter-spacing: -0.01em; }
h2 { font-size: 1.25rem; margin: 2.2rem 0 0.6rem; }
h3 { font-size: 1.05rem; margin: 1.4rem 0 0.4rem; }
p { margin: 0 0 0.9rem; }
.head { margin-bottom: 1.8rem; }
.kicker { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin: 0 0 0.4rem; font-weight: 600; }
.kicker a { color: var(--muted); }
.lede { font-size: 1.1rem; color: var(--muted); }
.small, .note { font-size: 0.88rem; color: var(--muted); }
.block { margin-top: 2rem; }

/* Home */
.hero h1 { font-size: 2.4rem; max-width: 36rem; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); margin: 2rem 0; }
.pillars > div { padding: 1.1rem 1.2rem 1.2rem 0; }
.pillars > div + div { padding-left: 1.2rem; border-left: 1px solid var(--rule); }
.pillars h2 { margin: 0 0 0.4rem; font-size: 1.1rem; }
.pillars p { font-size: 0.93rem; color: var(--muted); }
@media (max-width: 680px) {
  .pillars { grid-template-columns: 1fr; }
  .pillars > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); }
}

/* Bulletin */
.days { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.days th { text-align: left; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); border-bottom: 2px solid var(--ink); padding: 0.4rem 0.6rem 0.4rem 0; }
.days td { border-bottom: 1px solid var(--rule); padding: 0.5rem 0.6rem 0.5rem 0; }
.vulns, .alerts, .refs { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule); }
.vulns li, .alerts li { padding: 0.8rem 0; border-bottom: 1px solid var(--rule); }
.vulns p, .alerts p { margin: 0.15rem 0 0; font-size: 0.95rem; }
.vrow { font-weight: 700; }
.vrow a { font-family: var(--mono); font-size: 0.95rem; }
.alerts .vrow a { font-family: var(--sans); }
.tag { display: inline-block; font: 600 0.7rem/1 var(--sans); text-transform: uppercase; letter-spacing: 0.05em; padding: 0.22rem 0.4rem; margin-left: 0.4rem; border: 1px solid currentColor; border-radius: 2px; vertical-align: 2px; }
.tag.red { color: var(--red); }
.tag.amber { color: var(--amber); }
.tag.blue { color: var(--blue); }
.refs li { padding: 0.35rem 0; border-bottom: 1px solid var(--rule); font-size: 0.9rem; overflow-wrap: anywhere; }
.facts { display: grid; grid-template-columns: 11rem 1fr; gap: 0.5rem 1rem; margin: 0 0 1.5rem; }
.facts dt { font-weight: 700; }
.facts dd { margin: 0; }
.facts code { font: 0.8rem var(--mono); color: var(--muted); overflow-wrap: anywhere; }
@media (max-width: 560px) { .facts { grid-template-columns: 1fr; } .facts dd { margin-bottom: 0.6rem; } }
.human { background: var(--soft); border-left: 4px solid var(--blue); padding: 0.9rem 1.1rem; margin: 1.5rem 0; }
.human h2 { margin: 0 0 0.4rem; font-size: 1.05rem; }
.human p { margin: 0; }
.orig { font-size: 0.95rem; color: var(--muted); }
.pager { display: flex; justify-content: space-between; margin-top: 1.4rem; font-size: 0.92rem; }

/* Guides */
.prose ul, .prose ol { padding-left: 1.3rem; margin: 0 0 1rem; }
.prose li { margin: 0.25rem 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.93rem; margin: 0 0 1.2rem; }
.prose th, .prose td { text-align: left; border-bottom: 1px solid var(--rule); padding: 0.45rem 0.6rem 0.45rem 0; vertical-align: top; }
.prose th { border-bottom: 2px solid var(--ink); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.source { font-size: 0.82rem; color: var(--muted); }
.box { border: 1px solid var(--rule); padding: 1rem 1.2rem; margin: 1.2rem 0; }
.cta { display: inline-block; background: var(--ink); color: var(--bg); padding: 0.6rem 1rem; font-weight: 700; border-radius: 2px; }
.cta:hover { text-decoration: none; background: var(--blue); }

/* Forms */
form.check fieldset { border: 0; border-top: 1px solid var(--rule); padding: 1rem 0 0.4rem; margin: 0; }
form.check legend { font-weight: 700; padding: 0; margin-bottom: 0.5rem; }
form.check label { display: block; padding: 0.25rem 0; }
form.check input[type=radio], form.check input[type=checkbox] { margin-right: 0.5rem; }
form.check select, form.inline input[type=email] { font: inherit; padding: 0.45rem 0.5rem; border: 1px solid var(--rule); background: var(--bg); color: var(--ink); max-width: 100%; }
form.check button, form.inline button { font: inherit; font-weight: 700; background: var(--ink); color: var(--bg); border: 0; padding: 0.6rem 1.1rem; cursor: pointer; border-radius: 2px; margin-top: 1rem; }
form.inline { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
form.inline button { margin-top: 0; }
.result { border: 2px solid var(--ink); padding: 1rem 1.2rem; margin: 1.5rem 0; }
.result.yes { border-color: var(--red); }
.result.maybe { border-color: var(--amber); }

.foot { border-top: 1px solid var(--rule); font-size: 0.85rem; color: var(--muted); }
.foot-row { padding-top: 1.3rem; padding-bottom: 2rem; }
.foot a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }

/* Section navigation and courses */
.subnav { display: flex; flex-wrap: wrap; gap: 0.3rem 1.2rem; font-size: 0.9rem; border-bottom: 1px solid var(--rule); padding-bottom: 0.6rem; margin-bottom: 1.6rem; }
.subnav a { color: var(--muted); }
.subnav a.on { color: var(--ink); font-weight: 700; }
.course { border-top: 2px solid var(--ink); padding-top: 0.4rem; }
.course h2 { margin-top: 0.6rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }