:root {
  --trail-green: #0e3d2f;
  --trail-green-soft: #1d5a43;
  --trail-red: #d82716;
  --trail-brown: #8b5e34;
  --ink: #1d241f;
  --muted: #68746c;
  --paper: #f7f4ee;
  --panel: #ffffff;
  --line: #e7dfd3;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, Arial, sans-serif;
  line-height: 1.6;
}

a { color: var(--trail-green-soft); }
a:hover { color: var(--trail-red); text-decoration: none; }

.site-header {
  background: rgba(247, 244, 238, .97);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header .navbar {
  gap: .5rem;
  min-height: 4rem;
  padding: .45rem 0;
}
.brand-lockup { align-items: center; color: var(--ink); display: inline-flex; gap: .65rem; }
.brand-lockup:hover { color: var(--ink); }
.brand-lockup strong { display: block; font-weight: 800; letter-spacing: 0; }
.brand-lockup em { color: var(--muted); display: block; font-size: .72rem; font-style: normal; margin-top: -.1rem; }
.brand-mark {
  align-items: center;
  background: var(--trail-red);
  border-radius: 50%;
  color: #fff;
  display: inline-flex;
  font-weight: 800;
  height: 2rem;
  justify-content: center;
  width: 2rem;
}

.nav-links .btn.btn-link,
.nav-links .nav-button {
  border: 1px solid var(--trail-red);
  border-radius: 4px;
  color: var(--ink);
  display: inline-flex;
  font-size: .72rem;
  font-weight: 700;
  line-height: 1.2;
  padding-left: .35rem;
  padding-right: .35rem;
  text-decoration: none;
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem;
  justify-content: flex-end;
}
.nav-links .dropdown { position: relative; }
.nav-links .menu {
  max-height: 70vh;
  overflow: auto;
}

.trail-hero {
  background:
    linear-gradient(90deg, rgba(8, 28, 20, .86), rgba(8, 28, 20, .45)),
    url("/assets/images/trail-reference.png") center / cover no-repeat;
  background-color: var(--trail-green);
  color: #fff;
  min-height: 360px;
}

.trail-hero .hero-body { padding: 5rem 1rem; }
.trail-hero h1 { font-size: clamp(2.1rem, 5vw, 4.3rem); font-weight: 800; line-height: 1; margin: .3rem 0 1rem; max-width: 760px; }
.trail-hero p { max-width: 560px; }
.eyebrow {
  color: var(--trail-red);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: 0;
  margin-bottom: .35rem;
  text-transform: uppercase;
}
.trail-hero .eyebrow { color: #fff; }

.btn.btn-primary {
  background: var(--trail-red);
  border-color: var(--trail-red);
  border-radius: 4px;
  color: #fff;
  font-weight: 800;
}

.btn.btn-link.text-light { color: #fff; font-weight: 700; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }

.site-main { min-height: 60vh; }
.page-layout { padding: 3rem 1rem; }
.content-panel,
.archive-sidebar,
.notice-panel,
.source-links {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 10px 26px rgba(29, 36, 31, .05);
}
.content-panel { padding: 2rem; }
.content-panel h1 { font-size: clamp(1.9rem, 4vw, 3.2rem); font-weight: 800; line-height: 1.08; margin-bottom: 1.2rem; }
.content-panel h2, .content-panel h3 { color: var(--trail-green); font-weight: 800; }
.lead { color: var(--muted); font-size: 1.05rem; }

.notice-panel {
  background: var(--trail-green);
  color: #fff;
  margin-bottom: 1.5rem;
  padding: 1.4rem 1.6rem;
}
.notice-panel h2 { color: #fff; font-size: 1.55rem; margin: .2rem 0 .55rem; }
.notice-panel a { color: #fff2c3; font-weight: 700; }
.notice-kicker { color: #ffd84d; font-size: .72rem; font-weight: 800; text-transform: uppercase; }

.quick-grid {
  display: grid;
  gap: .85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.5rem;
}
.quick-card {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--trail-red);
  border-radius: 6px;
  color: var(--ink);
  display: block;
  padding: 1rem;
}
.quick-card strong { display: block; font-size: 1rem; }
.quick-card span { color: var(--muted); font-size: .82rem; }

.archive-sidebar { padding: 1.25rem; }
.archive-sidebar h2 { font-size: .9rem; font-weight: 800; margin: 0 0 .75rem; text-transform: uppercase; }
.archive-sidebar .nav { max-height: 620px; overflow: auto; }
.archive-sidebar .nav-item a { border-radius: 4px; color: var(--ink); font-size: .82rem; padding: .22rem .35rem; }
.archive-sidebar .nav-item a:hover { background: #f0eadf; color: var(--trail-red); }

.archive-grid { margin-top: 1.5rem; }
.archive-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  height: 100%;
  overflow: hidden;
}
.archive-card-media { background: #e7dfd3; display: block; aspect-ratio: 4 / 3; overflow: hidden; }
.archive-card-media img { height: 100%; object-fit: cover; width: 100%; }
.archive-card-body { padding: 1rem; }
.archive-card h2 { font-size: 1.05rem; margin: 0 0 .45rem; }
.read-more { font-size: .78rem; font-weight: 800; text-transform: uppercase; }

.download-strip {
  background: #fff5f2;
  border-left: 4px solid var(--trail-red);
  border-radius: 4px;
  color: var(--trail-green);
  font-weight: 700;
  margin: 1rem 0;
  padding: .75rem 1rem;
}

.table-scroll { overflow-x: auto; }
.table.table-striped { background: #fff; border: 1px solid var(--line); }
.content-image { margin: 1.25rem 0; }
.content-image img { border-radius: 6px; max-width: 100%; }
.content-list li { margin-bottom: .35rem; }
.section-rule { border: 0; border-top: 1px solid var(--line); margin: 1.5rem 0; }
.legacy-html { overflow-x: auto; }
.toc {
  background: #f8f5ef;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin: 1rem 0 1.5rem;
  padding: 1rem 1.25rem;
}

.source-links {
  margin-bottom: 3rem;
  padding: 1.5rem;
}
.source-links h2 { color: var(--trail-green); font-size: 1.2rem; font-weight: 800; }
.source-link-card {
  border: 1px solid var(--line);
  border-radius: 6px;
  display: block;
  margin-bottom: .75rem;
  min-height: 3rem;
  padding: .75rem;
}

.page-breadcrumbs { margin-bottom: 1rem; }
.error-panel { max-width: 720px; }

.site-footer.bg-dark {
  background: var(--trail-green) !important;
  border-top: 4px solid var(--trail-brown);
  color: #dfe8e1;
  padding: 2.5rem 1rem;
}
.site-footer h2, .site-footer h3 { color: #fff; font-weight: 800; }
.site-footer a { color: #fff2c3; }
.footer-list { list-style: none; margin: 0; padding: 0; }
.footer-list li { margin-bottom: .35rem; }

@media (max-width: 840px) {
  .site-header { position: static; }
  .site-header .navbar { align-items: flex-start; flex-direction: column; padding: .75rem 0; }
  .nav-links { display: flex; flex-wrap: wrap; gap: .2rem; justify-content: flex-start; margin-top: .5rem; }
  .trail-hero .hero-body { padding: 3.5rem 1rem; }
  .content-panel { padding: 1.35rem; }
  .quick-grid { grid-template-columns: 1fr; }
}