:root {
  --navy: #1b2a4a;
  --gold: #c9a84c;
  --white: #ffffff;
  --text: #23314f;
  --muted: #5c6780;
  --border: #d8deea;
  --info-bg: #edf3ff;
  --warning-bg: #fff8db;
  --success-bg: #eef9ef;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--white);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: var(--navy);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.nav-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.mobile-header,
.mobile-nav {
  display: none;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 100vh;
  overflow-y: auto;
  background: var(--navy);
  color: var(--white);
  padding: 24px 18px;
  border-right: 4px solid var(--gold);
}

.brand-block {
  margin-bottom: 20px;
}

.brand-kicker {
  margin: 0;
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #d9dfef;
}

.brand-title {
  margin: 4px 0 0;
  font-size: 1.2rem;
  line-height: 1.3;
  color: var(--white);
  border: 0;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list li + li {
  margin-top: 8px;
}

.nav-link {
  display: block;
  padding: 10px 12px;
  border-left: 3px solid transparent;
  border-radius: 6px;
  color: #edf1fa;
  font-weight: 600;
}

.nav-link:hover,
.nav-link:focus {
  background: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.nav-link.active {
  background: rgba(201, 168, 76, 0.2);
  border-left-color: var(--gold);
  color: var(--white);
}

.main-wrapper {
  margin-left: 240px;
  min-height: 100vh;
  padding: 30px 36px 40px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.page-header h1 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.2;
  color: var(--navy);
}

.print-btn {
  border: 1px solid var(--gold);
  background: #fff8ea;
  color: var(--navy);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
}

.print-btn:hover,
.print-btn:focus {
  background: #fff2ce;
}

.last-updated {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
  align-items: start;
}

.doc-content {
  min-width: 0;
}

.doc-content h1 {
  display: none;
}

.doc-content h2,
.section-toc h2 {
  font-size: 1.5rem;
  color: var(--navy);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 6px;
  margin: 26px 0 14px;
}

.doc-content h2:first-of-type {
  margin-top: 0;
}

.doc-content h3 {
  font-size: 1.2rem;
  color: var(--navy);
  margin: 22px 0 10px;
}

.heading-text {
  vertical-align: middle;
}

.anchor-link {
  margin-left: 8px;
  color: #7f8aa1;
  font-size: 0.8em;
  text-decoration: none;
  vertical-align: middle;
}

.anchor-link:hover,
.anchor-link:focus {
  color: var(--navy);
}

.doc-content p {
  margin: 12px 0;
}

.doc-content hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 22px 0;
}

.doc-content ul,
.doc-content ol {
  margin: 10px 0 16px 24px;
}

.doc-content li {
  margin: 5px 0;
}

.checklist {
  list-style: none;
  margin-left: 0;
  padding-left: 0;
}

.checklist .check-item {
  position: relative;
  padding-left: 32px;
}

.checklist .check-item::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 4px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--gold);
  border-radius: 3px;
  background: #fffdf6;
}

.doc-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 20px;
  font-size: 0.95rem;
}

.doc-content th,
.doc-content td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  vertical-align: top;
}

.doc-content thead th {
  background: var(--navy);
  color: var(--white);
}

.doc-content code {
  background: #f1f3f7;
  padding: 2px 5px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.92em;
}

.doc-content pre {
  background: #f1f3f7;
  border: 1px solid #d4dbe8;
  border-radius: 8px;
  padding: 12px 14px;
  overflow-x: auto;
}

.doc-content pre code {
  background: transparent;
  padding: 0;
}

.callout {
  margin: 16px 0 18px;
  border-left: 5px solid var(--navy);
  background: var(--info-bg);
  padding: 12px 14px;
  border-radius: 4px;
}

.callout-label {
  margin: 0 0 4px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 700;
}

.callout p:last-child {
  margin-bottom: 0;
}

.warning-box {
  border-left-color: #b38f2f;
  background: var(--warning-bg);
}

.success-box {
  border-left-color: #2f8f44;
  background: var(--success-bg);
}

.info-box {
  border-left-color: var(--navy);
  background: var(--info-bg);
}

.section-toc {
  position: sticky;
  top: 20px;
  align-self: start;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 14px 10px;
  background: #f9fbff;
}

.section-toc h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.section-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.section-toc li + li {
  margin-top: 8px;
}

.section-toc a {
  color: var(--navy);
  font-size: 0.94rem;
}

.toc-empty {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.page-footer {
  margin-top: 36px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

.page-footer p {
  margin: 4px 0;
}

.print-url {
  display: none;
}

@media (max-width: 768px) {
  .sidebar {
    display: none;
  }

  .main-wrapper {
    margin-left: 0;
    padding: 16px;
  }

  .mobile-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    background: var(--navy);
    color: var(--white);
    padding: 12px 16px;
  }

  .hamburger {
    display: inline-block;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 6px;
    padding: 5px 8px;
    cursor: pointer;
    font-weight: 600;
  }

  .mobile-brand {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
  }

  .mobile-nav {
    display: none;
    background: var(--navy);
    padding: 0 16px 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
  }

  #mobile-nav-toggle:checked ~ .mobile-nav {
    display: block;
  }

  .mobile-nav .nav-list li + li {
    margin-top: 6px;
  }

  .mobile-nav .nav-link {
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-left-width: 3px;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-header h1 {
    font-size: 1.7rem;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .section-toc {
    position: static;
    order: -1;
  }
}