/* Perennial Pepperweed — academic technical report (litera + custom)
   Link blue darkened for WCAG AA contrast (≥4.5:1 on white). */

@import url("https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;0,8..60,700;1,8..60,400&family=Source+Sans+3:wght@400;600;700&display=swap");

:root {
  --pw-link: #1565c0;
  --pw-link-hover: #0d47a1;
  --pw-text: #1a1a1a;
  --pw-muted: #4a5568;
  --pw-border: #d0d5dd;
  --pw-surface: #f7f6f3;
  --pw-focus: #0d47a1;
  --pw-accent: #1b4f72;
}

body {
  font-family: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--pw-text);
  font-optical-sizing: auto;
}

h1, h2, h3, h4, h5, h6,
.navbar,
#TOC,
.quarto-title-meta,
nav {
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
  letter-spacing: -0.01em;
}

h1.title {
  font-weight: 700;
  font-size: 1.85rem;
  line-height: 1.25;
  color: var(--pw-accent);
  max-width: 52rem;
}

p.subtitle.lead {
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1.05rem;
  color: var(--pw-muted);
  font-weight: 400;
}

/* Abstract block (Quarto) */
.abstract,
div.abstract {
  background: var(--pw-surface);
  border-left: 4px solid var(--pw-accent);
  padding: 1.1rem 1.35rem;
  margin: 1.25rem 0 1.75rem;
  max-width: 48rem;
}

.abstract > blockquote,
div.abstract > blockquote {
  border: none;
  padding: 0;
  margin: 0;
  font-size: 0.98rem;
}

.quarto-title-meta,
.quarto-title-meta-author {
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.92rem;
}

/* Keywords if rendered */
.keywords {
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.9rem;
  color: var(--pw-muted);
  margin-bottom: 1.5rem;
}

h2 {
  font-weight: 700;
  margin-top: 2.25rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--pw-border);
}

h3 {
  font-weight: 600;
  margin-top: 1.5rem;
  color: #243447;
}

/* Right margin TOC */
#TOC > ul.collapse,
#TOC ul.collapse {
  display: block !important;
  visibility: visible !important;
  height: auto !important;
}

#TOC {
  position: sticky;
  top: 4rem;
  max-height: calc(100vh - 5rem);
  overflow-y: auto;
  padding-right: 0.25rem;
}

#TOC #toc-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--pw-muted);
  margin-bottom: 0.75rem;
}

#TOC .nav-link {
  display: block;
  padding: 0.2rem 0;
  font-size: 0.82rem;
  line-height: 1.35;
  color: var(--pw-muted);
}

#TOC .nav-link.active,
#TOC .nav-link:hover {
  color: var(--pw-link);
}

#TOC ul ul {
  padding-left: 0.85rem;
  margin-top: 0.15rem;
  margin-bottom: 0.15rem;
}

#TOC ul ul .nav-link {
  font-size: 0.78rem;
}

/* Links */
a {
  color: var(--pw-link);
  text-decoration: none;
}

a:hover {
  color: var(--pw-link-hover);
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
.nav-link:focus-visible,
.download-links a:focus-visible,
.leaflet-control a:focus-visible {
  outline: 3px solid var(--pw-focus);
  outline-offset: 2px;
}

/* Tables */
table {
  width: 100%;
  margin-bottom: 1rem;
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.95rem;
}

.table td,
.table th {
  padding: 0.5rem 0.75rem;
  vertical-align: top;
}

.table-responsive {
  overflow-x: auto;
  margin-bottom: 1rem;
}

/* DT tables */
.dataTables_wrapper {
  overflow-x: auto;
  margin-bottom: 1rem;
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.dataTables_wrapper table {
  font-size: 0.9rem;
}

.dataTables_wrapper th,
.dataTables_wrapper td {
  padding: 0.35rem 0.5rem;
}

/* Figures and maps */
.figure {
  margin: 1.5rem 0;
}

.figure img {
  max-width: 100%;
  height: auto;
}

.leaflet-container {
  border: 1px solid var(--pw-border);
}

.map-a11y-summary {
  margin: 0.75rem 0 1rem;
  padding: 0.75rem 1rem;
  background: var(--pw-surface);
  border-left: 3px solid var(--pw-link);
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.92rem;
}

/* Block quotes */
blockquote {
  border-left: 3px solid var(--pw-border);
  color: var(--pw-muted);
  font-size: 0.98rem;
}

/* Code */
pre {
  background-color: var(--pw-surface);
  border: 1px solid #e9ecef;
  border-radius: 0.2rem;
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
}

/* Content blocks */
.download-section {
  background-color: var(--pw-surface);
  border: 1px solid var(--pw-border);
  padding: 1.25rem;
  margin: 1.5rem 0;
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.download-section h3 {
  margin-bottom: 0.75rem;
  border: none;
}

.download-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.download-links a {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  background-color: var(--pw-link);
  color: #fff;
  border-radius: 0.2rem;
  font-weight: 600;
}

.download-links a:hover {
  background-color: var(--pw-link-hover);
  color: #fff;
  text-decoration: none;
}

.spatial-extent {
  background-color: var(--pw-surface);
  border: 1px solid var(--pw-border);
  padding: 1rem;
  margin: 1rem 0;
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.spatial-extent h4 {
  margin-bottom: 0.5rem;
}

.spatial-extent ul {
  margin-bottom: 0;
}

/* References */
#refs,
.references {
  font-size: 0.92rem;
  line-height: 1.45;
}

#refs .csl-entry,
.references .csl-entry {
  margin-bottom: 0.65rem;
  padding-left: 1.5rem;
  text-indent: -1.5rem;
}

/* Hide Quarto navigation envelope artifacts */
#quarto-navigation-envelope,
.quarto-markdown-envelope-contents,
[class*="quarto-markdown-envelope"] {
  display: none !important;
  visibility: hidden !important;
  height: 0 !important;
  overflow: hidden !important;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  #TOC {
    position: static;
    max-height: none;
  }
}

/* Print */
@media print {
  #TOC {
    display: none;
  }

  body {
    font-size: 11pt;
  }

  .dataTables_length,
  .dataTables_filter,
  .dataTables_info,
  .dataTables_paginate,
  .dt-buttons {
    display: none !important;
  }
}