/* Hand-authored plain CSS (no Tailwind toolchain) replicating the
   previous site's spacing/colors/typography, kept small and dependency-
   free so the whole build stays pure Rust with no Node/network step. */

:root {
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --blue-900: #1e3a8a;
  --blue-700: #1d4ed8;
  --blue-600: #2563eb;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--slate-900);
  background: var(--white);
  line-height: 1.6;
}

a {
  color: var(--blue-600);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Nav ------------------------------------------------------------ */

.site-nav {
  background: var(--slate-900);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.site-nav-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
}
.brand:hover {
  text-decoration: none;
  opacity: 0.9;
}

.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--white);
  padding: 0.25rem 0.5rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--white);
}
.nav-links a:hover {
  color: #93c5fd;
}

.lang-switch {
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 0.375rem;
  padding: 0.15rem 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
}

@media (max-width: 768px) {
  .nav-toggle-label {
    display: block;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    width: 100%;
    padding-top: 0.75rem;
  }
  .nav-toggle:checked ~ .nav-links {
    display: flex;
  }
}

/* --- Main ------------------------------------------------------------ */

.site-main {
  flex: 1;
  max-width: 56rem;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  width: 100%;
}

.hero {
  text-align: center;
  margin-bottom: 3rem;
}
.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}
.hero .tagline {
  font-size: 1.25rem;
  color: var(--slate-600);
  font-weight: 500;
  margin: 0 0 1.5rem;
}
.cta {
  display: inline-block;
  background: var(--blue-600);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.cta:hover {
  background: var(--blue-700);
  text-decoration: none;
}

h1 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--slate-900);
  margin: 0 0 1.5rem;
}

.content-section {
  margin-bottom: 2.5rem;
}
.content-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--slate-800);
  border-left: 4px solid var(--blue-600);
  padding-left: 1rem;
  margin: 0 0 1rem;
}

.prose h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--slate-800);
  margin: 2rem 0 1rem;
}
.prose p,
.prose ul,
.prose ol {
  color: var(--slate-700);
  margin: 0 0 1rem;
}
.prose ul,
.prose ol {
  padding-left: 1.5rem;
}
.prose blockquote {
  background: var(--slate-900);
  color: var(--white);
  padding: 1.25rem 1.5rem;
  border-radius: 1rem;
  font-style: italic;
  margin: 1.5rem 0;
}
.prose blockquote p {
  color: var(--white);
  margin: 0;
}
.notice {
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  color: var(--blue-900);
}

/* --- Generic RDF resource page (build.rs's render_resource_html) ------- */
.resource-type {
  display: inline-block;
  background: var(--slate-100);
  color: var(--slate-600);
  border-radius: 999px;
  padding: 0.15rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0 1.5rem;
}
.resource-props {
  margin: 0 0 1.5rem;
}
.resource-props dt {
  color: var(--slate-600);
  font-weight: 600;
  margin-top: 1rem;
}
.resource-props dd {
  color: var(--slate-700);
  margin: 0.25rem 0 0;
  white-space: pre-line;
}
.lang-tag {
  color: var(--slate-600);
  font-size: 0.85em;
}

/* --- Footer ------------------------------------------------------------ */

.site-footer {
  background: var(--slate-100);
  border-top: 1px solid var(--slate-200);
  padding: 2.5rem 1.5rem;
  margin-top: 2rem;
  text-align: center;
  color: var(--slate-600);
}
.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
}