/* Vanguard Hub - single stylesheet. No external resources, no web fonts. */

:root {
  --paper: #f6f3ec;
  --surface: #fffdf7;
  --ink: #1b2420;
  --muted: #4a5751;
  --line: #d8cfbd;
  --line-soft: #e7e0d2;
  --accent: #0d5c4d;
  --accent-dark: #073b31;
  --amber: #7d4310;
  --amber-bg: #fbf1e2;
  --tint: #ebf0ed;
  --radius: 3px;
  --sp: 1rem;
  --serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.65 var(--sans);
  overflow-wrap: break-word;
}

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }

a { color: var(--accent-dark); }
a:hover { color: var(--amber); }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent-dark);
  color: #fff;
  padding: 10px 16px;
  z-index: 50;
}
.skip:focus {
  left: 0;
  color: #fff;
}

/* ---------- header ---------- */

.head {
  background: var(--surface);
  border-bottom: 2px solid var(--accent);
}

.head-in {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
  margin-right: auto;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--accent);
  color: var(--paper);
  font: 700 17px/1 var(--sans);
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  flex: none;
}

.brand-txt {
  font: 700 20px/1.15 var(--serif);
  display: block;
}

.brand-sub {
  display: block;
  font: 400 12.5px/1.3 var(--sans);
  color: var(--muted);
  letter-spacing: 0.01em;
  margin-top: 3px;
}

.menu-btn {
  display: none;
  font: 600 15px/1 var(--sans);
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 11px 14px;
  cursor: pointer;
}

.nav-hold { width: 100%; }

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 2px 18px;
  border-top: 1px solid var(--line-soft);
  padding-top: 10px;
}

.nav-item { position: relative; }

.nav-list a,
.nav-sub-toggle {
  display: inline-block;
  padding: 7px 0;
  font: 500 15px/1.3 var(--sans);
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  background: none;
  border-top: 0;
  border-left: 0;
  border-right: 0;
  cursor: pointer;
}

.nav-list a:hover,
.nav-sub-toggle:hover { border-bottom-color: var(--amber); color: var(--amber); }

.nav-list a[aria-current="page"] {
  border-bottom-color: var(--accent);
  color: var(--accent-dark);
  font-weight: 700;
}

.caret {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 7px;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  vertical-align: middle;
}

.subnav {
  list-style: none;
  margin: 0;
  padding: 8px 0;
  position: absolute;
  top: 100%;
  left: -14px;
  min-width: 280px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(27, 36, 32, 0.13);
  z-index: 30;
  display: none;
}

.subnav[data-open] { display: block; }
.subnav li { padding: 0 14px; }
.subnav a { display: block; padding: 8px 0; border-bottom: 1px solid var(--line-soft); }
.subnav li:last-child a { border-bottom: 0; }

/* ---------- layout ---------- */

.layout-side {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 272px;
  gap: 48px;
  align-items: start;
  padding-top: 34px;
  padding-bottom: 54px;
}

.layout-wide { padding-top: 34px; padding-bottom: 54px; }

.main { min-width: 0; }

.side { position: sticky; top: 18px; }

.side-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 20px;
}

.side-h {
  font: 700 13px/1.3 var(--sans);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
}

.toc, .rellist { list-style: none; margin: 0; padding: 0; font-size: 15px; }
.toc li, .rellist li { margin-bottom: 9px; line-height: 1.4; }
.toc li:last-child, .rellist li:last-child { margin-bottom: 0; }
.toc a.on { font-weight: 700; color: var(--accent-dark); }

/* ---------- typography ---------- */

h1, h2, h3, h4 { font-family: var(--serif); line-height: 1.22; color: var(--ink); }

h1 { font-size: 2.15rem; margin: 0 0 14px; letter-spacing: -0.01em; }
h2 { font-size: 1.55rem; margin: 2.4rem 0 0.7rem; }
h3 { font-size: 1.2rem; margin: 1.7rem 0 0.5rem; }
h4 { font-size: 1.04rem; margin: 1.3rem 0 0.4rem; }

p { margin: 0 0 1.05rem; }

.lede { font-size: 1.14rem; color: var(--muted); }

.kicker {
  font: 700 12.5px/1.3 var(--sans);
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}

.main ul, .main ol { margin: 0 0 1.05rem; padding-left: 1.35rem; }
.main li { margin-bottom: 0.45rem; }

hr { border: 0; border-top: 1px solid var(--line); margin: 2.4rem 0; }

/* ---------- components ---------- */

.hero {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 5px solid var(--accent);
  border-radius: var(--radius);
  padding: 26px 26px 10px;
  margin-bottom: 26px;
}

.disclosure-box {
  background: var(--tint);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 22px 6px;
  margin: 0 0 28px;
}

.disclosure-box h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.offer {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 18px 20px 6px;
  margin: 1.6rem 0;
}

.offer-note { margin: 0 0 12px; }

.offer-act { margin: 0 0 10px; }

.offer-meta { font-size: 14.5px; color: var(--muted); }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  font: 600 16px/1 var(--sans);
  padding: 14px 22px;
  border-radius: var(--radius);
}

.btn:hover { background: var(--accent-dark); color: #ffffff; }

.callout {
  background: var(--tint);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 20px 2px;
  margin: 1.5rem 0;
}

.warnpanel {
  background: var(--amber-bg);
  border: 1px solid #e3c9a3;
  border-left: 4px solid var(--amber);
  border-radius: var(--radius);
  padding: 16px 20px 2px;
  margin: 1.5rem 0;
}

.warnpanel h3, .callout h3 { margin-top: 0.25rem; }

.quickans {
  border: 1px dashed var(--accent);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 16px 20px 2px;
  margin: 1.4rem 0;
}

.quickans p:first-child { margin-top: 0; }

.qa-label {
  font: 700 12px/1.3 var(--sans);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 6px;
}

.symptom {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 4px 22px 6px;
  margin: 1.6rem 0;
}

.symptom h3 { color: var(--accent-dark); }

.symptom dl { margin: 0 0 1rem; }
.symptom dt {
  font: 700 12.5px/1.3 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 0.9rem;
}
.symptom dd { margin: 0.25rem 0 0; }

.checklist { list-style: none; padding-left: 0; }
.checklist li {
  padding-left: 30px;
  position: relative;
  margin-bottom: 0.7rem;
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 16px;
  height: 16px;
  border: 2px solid var(--accent);
  border-radius: 2px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  gap: 16px;
  margin: 1.4rem 0 1.8rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px 6px;
}

.card h3 { margin: 0 0 6px; font-size: 1.08rem; }
.card h3 a { text-decoration: none; }
.card h3 a:hover { text-decoration: underline; }
.card p { font-size: 15.5px; color: var(--muted); }

.tablewrap { overflow-x: auto; margin: 1.4rem 0; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15.5px;
  background: var(--surface);
  min-width: 480px;
}

caption {
  text-align: left;
  font: 600 14.5px/1.4 var(--sans);
  color: var(--muted);
  padding-bottom: 8px;
}

th, td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

thead th { background: var(--tint); font-weight: 700; }

.faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  margin-bottom: 10px;
  padding: 0 18px;
}

.faq summary {
  cursor: pointer;
  font: 600 16.5px/1.4 var(--sans);
  padding: 14px 0;
  list-style: revert;
}

.faq details[open] summary { border-bottom: 1px solid var(--line-soft); }
.faq details > p { margin: 14px 0; }

.terms { margin: 1.3rem 0; }
.terms dt { font-weight: 700; margin-top: 1rem; }
.terms dd { margin: 0.2rem 0 0; color: var(--muted); }

.meta-line { font-size: 15px; color: var(--muted); margin-bottom: 1.6rem; }

.steps { counter-reset: step; list-style: none; padding-left: 0; }
.steps > li {
  counter-increment: step;
  position: relative;
  padding-left: 46px;
  margin-bottom: 1.1rem;
}
.steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 31px;
  height: 31px;
  background: var(--accent);
  color: var(--paper);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font: 700 15px/1 var(--sans);
}

.srcs { font-size: 15.5px; }

/* ---------- footer ---------- */

.foot {
  background: var(--surface);
  border-top: 2px solid var(--accent);
  padding: 30px 0 38px;
  margin-top: 20px;
}

.pub p { margin: 0 0 4px; font-size: 15.5px; color: var(--muted); }
.pub-name { font: 700 18px/1.3 var(--serif) !important; color: var(--ink) !important; margin-bottom: 8px !important; }
.pub-links { margin-top: 12px !important; }
.pub-tm { margin-top: 12px !important; max-width: 780px; }
.pub-rev { margin-top: 10px !important; }

/* ---------- responsive ---------- */

@media (max-width: 960px) {
  .layout-side { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .side { position: static; }
}

@media (max-width: 760px) {
  body { font-size: 16.5px; }
  h1 { font-size: 1.78rem; }
  h2 { font-size: 1.36rem; }
  .menu-btn { display: block; }
  .nav-hold { display: none; }
  .nav-hold[data-open] { display: block; }
  .nav-list { flex-direction: column; gap: 0; }
  .nav-list a, .nav-sub-toggle { display: block; width: 100%; text-align: left; padding: 11px 0; border-bottom: 1px solid var(--line-soft); }
  .subnav { position: static; display: none; border: 0; box-shadow: none; min-width: 0; padding: 0 0 0 16px; }
  .subnav[data-open] { display: block; }
  .hero, .disclosure-box, .offer, .symptom, .card { padding-left: 18px; padding-right: 18px; }
}

@media (max-width: 380px) {
  .wrap { padding: 0 16px; }
  .brand-sub { display: none; }
}