:root {
  --dav-ink: #292929;
  --dav-muted: #5f6657;
  --dav-line: #d9e6bd;
  --dav-paper: #fcfdf7;
  --dav-panel: #f0f7df;
  --dav-panel-strong: #e2f0bf;
  --dav-green: #80ae00;
  --dav-green-bright: #87b700;
  --dav-green-dark: #4f6907;
  --dav-charcoal: #292929;
  --dav-white: #ffffff;
}

body {
  color: var(--dav-ink);
  background: var(--dav-paper);
}

.wy-side-nav-search,
.wy-nav-top {
  background: var(--dav-charcoal);
}

.wy-side-nav-search input[type="text"] {
  border-color: var(--dav-green-bright);
}

.wy-side-nav-search > a {
  display: block;
  margin: 0 auto 0.45rem;
}

.wy-side-nav-search > a img.logo {
  display: block;
  width: 238px;
  max-width: 92%;
  height: auto;
  margin: 0 auto;
  border-radius: 8px;
}

.wy-nav-content {
  max-width: 1040px;
  background: var(--dav-white);
}

h1, h2, h3 {
  letter-spacing: 0;
}

h1 {
  color: var(--dav-charcoal);
}

h2 {
  color: var(--dav-green-dark);
}

a {
  color: var(--dav-green);
}

a:hover {
  color: var(--dav-green-dark);
}

.hero-panel {
  margin: 1.4rem 0 1.8rem;
  padding: 1rem 1.15rem;
  border-left: 5px solid var(--dav-green-bright);
  background: var(--dav-panel);
  border-radius: 8px;
}

.hero-panel p {
  margin: 0.35rem 0 0;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 1rem 0 2rem;
}

.course-card {
  border: 1px solid var(--dav-line);
  border-top: 4px solid var(--dav-green-bright);
  border-radius: 8px;
  padding: 1rem;
  background: var(--dav-paper);
}

.course-card h3 {
  margin-top: 0;
  font-size: 1.05rem;
}

.course-card ul {
  padding-left: 1.1rem;
}

.course-card li {
  margin-bottom: 0.3rem;
}

table.docutils,
.rst-content table.docutils {
  border: 1px solid var(--dav-line);
}

.rst-content table.docutils thead,
.rst-content table.docutils th {
  background: var(--dav-panel-strong);
}

.rst-content code,
.rst-content tt,
code {
  border: 1px solid #cfe1a8;
  background: #f4f9e8;
  color: var(--dav-charcoal);
}

.rst-content pre code {
  border: 0;
  background: transparent;
  color: inherit;
}

.rst-content hr {
  border-top: 1px solid var(--dav-line);
}

.page-visual {
  display: block;
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  margin: 0 0 1.4rem;
  border: 1px solid var(--dav-line);
  border-radius: 8px;
  background: var(--dav-charcoal);
}

.rst-content .admonition.info {
  border-color: var(--dav-green-bright);
  background: var(--dav-panel);
}

.rst-content .admonition.info .admonition-title {
  background: var(--dav-green-bright);
  color: var(--dav-charcoal);
}

.wy-menu-vertical li.current > a,
.wy-menu-vertical li.on a {
  border-right-color: var(--dav-green-bright);
}

.wy-menu-vertical a:hover {
  background: #3a3a3a;
}

@media (max-width: 640px) {
  .course-grid {
    grid-template-columns: 1fr;
  }

  .course-card {
    padding: 0.85rem;
  }
}