.handbook-page {
  margin: 0;
  background: #fff;
}

.handbook-wrapper {
  --handbook-black: #000;
  --handbook-gold: #cfb991;
  --handbook-link: #004f9f;
  --handbook-border: #d9d9d6;
  box-sizing: border-box;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.handbook-wrapper *,
.handbook-wrapper *::before,
.handbook-wrapper *::after {
  box-sizing: inherit;
}

.handbook-wrapper .last-updated {
  margin: 0 0 2rem;
  color: #666;
}

.handbook-wrapper .handbook-layout {
  display: block;
}

.handbook-wrapper .table-of-contents {
  position: static;
  max-width: 900px;
  max-height: none;
  margin: 0 auto 3rem;
  padding: 1.5rem 0 2rem;
  overflow: visible;
  border-top: 3px solid var(--handbook-gold);
  border-bottom: 1px solid var(--handbook-border);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.handbook-wrapper .table-of-contents h2 {
  margin: 0 0 1rem;
  padding: 0;
  border: 0;
}

.handbook-wrapper .chapter-navigation-group {
  padding: 0.3rem 0;
  border-top: 0;
}

.handbook-wrapper .chapter-navigation-group:first-child {
  border-top: 0;
}

.handbook-wrapper .chapter-navigation-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0.75rem;
  border: 0;
  border-bottom: 1px solid var(--handbook-border);
  border-left: 5px solid var(--handbook-gold);
  border-radius: 0;
  background: transparent;
  color: var(--handbook-black);
  cursor: pointer;
  font-weight: 700;
  line-height: 1.4;
  list-style: none;
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.15em;
}

.handbook-wrapper .chapter-navigation-group summary::-webkit-details-marker {
  display: none;
}

.handbook-wrapper .chapter-navigation-group summary::after {
  width: 0.55rem;
  height: 0.55rem;
  flex: 0 0 0.55rem;
  border-right: 3px solid #8e6f3e;
  border-bottom: 3px solid #8e6f3e;
  content: "";
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.handbook-wrapper .chapter-navigation-group summary:hover {
  background: #f7f3e8;
  color: var(--handbook-black);
}

.handbook-wrapper .chapter-navigation-group summary:focus-visible {
  outline: 3px solid var(--handbook-link);
  outline-offset: 2px;
}

.handbook-wrapper .chapter-navigation-group[open] summary {
  background: #f7f3e8;
  color: var(--handbook-black);
}

.handbook-wrapper .chapter-navigation-group[open] summary::after {
  transform: rotate(225deg);
}

.handbook-wrapper .table-of-contents ul {
  margin: 0.35rem 0 0.5rem;
  padding: 0 0 0 1.25rem;
  list-style: none;
}

.handbook-wrapper .table-of-contents li {
  margin: 0.25rem 0;
}

.handbook-wrapper .table-of-contents .chapter-overview a {
  font-weight: 600;
}

.handbook-wrapper .table-of-contents a,
.handbook-wrapper .table-of-contents a:visited {
  display: block;
  padding: 0.25rem 0.5rem;
  border-left: 4px solid transparent;
  color: #333;
  text-decoration: none;
}

.handbook-wrapper .table-of-contents a:hover,
.handbook-wrapper .table-of-contents a:focus-visible {
  border-left-color: var(--handbook-gold);
  background: #f3efe6;
  color: var(--handbook-black);
  text-decoration: underline;
}

.handbook-wrapper .handbook-content {
  max-width: 900px;
  margin: 0 auto;
  min-width: 0;
}

.handbook-wrapper .chapter {
  margin: 0;
  padding: 3rem 0;
  border: 0;
  border-bottom: 1px solid var(--handbook-border);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.handbook-wrapper .chapter > h2 {
  margin: 0 0 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--handbook-gold);
  scroll-margin-top: 30px;
}

.handbook-wrapper .chapter h3 {
  margin: 2rem 0 0.75rem;
  scroll-margin-top: 30px;
}

.handbook-wrapper p {
  margin: 0.75rem 0 1.25rem;
}

.handbook-wrapper a {
  color: var(--handbook-link);
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.13em;
}

.handbook-wrapper a:hover,
.handbook-wrapper a:focus-visible {
  color: var(--handbook-black);
}

.handbook-wrapper ul,
.handbook-wrapper ol {
  padding-left: 2rem;
}

.handbook-wrapper li {
  margin-bottom: 0.45rem;
}

.handbook-wrapper .callout {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 6px solid var(--handbook-gold);
  border-radius: 4px;
  background: #f7f4eb;
}

.handbook-wrapper .callout > :first-child {
  margin-top: 0;
}

.handbook-wrapper .callout > :last-child {
  margin-bottom: 0;
}

.handbook-wrapper .resource-item {
  margin: 1rem 0;
}

.handbook-wrapper .resource-link {
  display: block;
  padding: 1rem;
  border: 1px solid #ddd;
  border-radius: 6px;
  background: #fff;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.handbook-wrapper .resource-link:hover,
.handbook-wrapper .resource-link:focus-visible {
  border-color: var(--handbook-gold);
  transform: translateY(-2px);
}

.handbook-wrapper .back-to-contents {
  margin: 2.5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--handbook-border);
  text-align: right;
}

.handbook-wrapper .floating-back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 100;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.85rem;
  border: 2px solid var(--handbook-gold);
  border-radius: 999px;
  background: var(--handbook-black);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.handbook-wrapper .floating-back-to-top:hover {
  background: var(--handbook-gold);
  color: var(--handbook-black);
  text-decoration: underline;
}

.handbook-wrapper .floating-back-to-top:focus-visible {
  outline: 3px solid #004f9f;
  outline-offset: 3px;
  background: var(--handbook-black);
  color: #fff;
}

.handbook-wrapper .back-to-top-icon {
  font-size: 1.25rem;
  line-height: 1;
}

@media (max-width: 600px) {
  .handbook-wrapper .floating-back-to-top {
    right: 0.75rem;
    bottom: 0.75rem;
    width: 48px;
    min-height: 48px;
    justify-content: center;
    padding: 0;
  }

  .handbook-wrapper .back-to-top-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
}

@media (max-width: 1000px) {
  .handbook-wrapper {
    padding: 1rem;
  }

  .handbook-wrapper .handbook-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .handbook-wrapper .table-of-contents {
    position: static;
    max-height: none;
  }

  .handbook-wrapper .chapter {
    padding: 2rem 0;
  }
}

@media print {
  .handbook-wrapper {
    max-width: none;
    padding: 0;
    font-size: 11pt;
  }

  .handbook-wrapper .table-of-contents {
    display: none;
  }

  .handbook-wrapper .back-to-contents {
    display: none;
  }

  .handbook-wrapper .floating-back-to-top {
    display: none;
  }

  .handbook-wrapper .handbook-layout {
    display: block;
  }

  .handbook-wrapper .chapter {
    break-inside: avoid-page;
    box-shadow: none;
  }
}