/* Article typography – readable, print-friendly */
@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=Inter:wght@400;500;600;700&display=swap');

/* ── Accessibility: skip navigation link ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: #10b981;
  color: #000;
  padding: 0.5rem 1.25rem;
  border-radius: 0 0 0.5rem 0.5rem;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus {
  top: 0;
  outline: 2px solid #000;
  outline-offset: 2px;
}

/* ── Accessibility: visible focus rings ── */
:focus-visible {
  outline: 2px solid #10b981;
  outline-offset: 3px;
  border-radius: 3px;
}
:focus:not(:focus-visible) {
  outline: none;
}

/* ── Language switcher ── */
.lang-switcher {
  appearance: none;
  -webkit-appearance: none;
  background: #18181b url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2371717a'/%3E%3C/svg%3E") no-repeat right 0.5rem center;
  background-size: 8px;
  border: 1px solid #3f3f46;
  border-radius: 0.5rem;
  color: #a1a1aa;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 1.75rem 0.25rem 0.5rem;
  transition: border-color 0.15s, color 0.15s;
}
.lang-switcher:hover,
.lang-switcher:focus {
  border-color: #10b981;
  color: #10b981;
}
.lang-switcher:focus-visible {
  outline: 2px solid #10b981;
  outline-offset: 2px;
}

.article-body {
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  font-size: 1.125rem;
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: #e4e4e7;
}

.article-body .article-meta {
  font-family: 'Inter', system-ui, sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.article-body h1 {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 700;
  font-size: 2.5rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-top: 0;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.article-body h2 {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(113, 113, 122, 0.5);
  color: #ffffff;
}

.article-body h2:first-of-type {
  margin-top: 2rem;
}

.article-body h3 {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 600;
  font-size: 1.15rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.article-body p {
  margin-bottom: 1.25rem;
  max-width: 65ch;
}

.article-body p.lead {
  font-size: 1.25rem;
  line-height: 1.7;
  color: #d4d4d8;
}

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

.article-body strong {
  font-weight: 600;
  color: #ffffff;
}

.article-body code {
  font-family: ui-monospace, monospace;
  font-size: 0.9em;
  padding: 0.15em 0.4em;
  background: rgba(63, 63, 70, 0.6);
  border-radius: 0.25rem;
  color: #e4e4e7;
}

/* Code snippets (attack examples, etc.) */
.article-body pre {
  font-family: ui-monospace, monospace;
  font-size: 0.8125rem;
  line-height: 1.5;
  background: rgba(24, 24, 27, 0.9);
  border: 1px solid rgba(63, 63, 70, 0.8);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1rem 0;
  max-width: 100%;
}
.article-body pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}
.article-body .code-caption {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.75rem;
  color: #71717a;
  margin-bottom: 0.35rem;
}

.article-body ul,
.article-body ol {
  margin-top: 1rem;
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  max-width: 65ch;
}

.article-body ul {
  list-style: none;
  padding-left: 0;
}

.article-body ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.875rem;
  line-height: 1.7;
}

.article-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
}

.article-body ol {
  counter-reset: item;
  list-style: none;
  padding-left: 0;
}

.article-body ol li {
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 1rem;
  line-height: 1.7;
  counter-increment: item;
}

.article-body ol li::before {
  content: counter(item);
  position: absolute;
  left: 0;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: #10b981;
  min-width: 1.75rem;
}

.article-body .article-cta {
  font-family: 'Inter', system-ui, sans-serif;
}

/* Section headings with icons */
.article-body h2.with-icon {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.article-body h2 .section-icon {
  width: 1.75rem;
  height: 1.75rem;
  color: #10b981;
  flex-shrink: 0;
}

/* Diagram / illustration blocks */
.article-fig {
  margin: 2rem 0;
  max-width: 100%;
}
.article-fig figcaption {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.875rem;
  color: #71717a;
  margin-top: 0.75rem;
  text-align: center;
}
.article-fig svg {
  width: 100%;
  height: auto;
  display: block;
}
.article-body .diagram-wrap {
  background: rgba(24, 24, 27, 0.6);
  border: 1px solid rgba(63, 63, 70, 0.8);
  border-radius: 1rem;
  padding: 1.5rem;
  margin: 2rem 0;
  overflow: hidden;
}

/* Callout / key point box */
.article-body .callout {
  border-left: 4px solid #10b981;
  background: rgba(16, 185, 129, 0.08);
  padding: 1.25rem 1.5rem;
  border-radius: 0 0.5rem 0.5rem 0;
  margin: 1.5rem 0;
  max-width: 65ch;
}
.article-body .callout strong {
  color: #10b981;
}

/* "In this guide" – SEO + sets expectations */
.article-body .in-this-guide {
  font-family: 'Inter', system-ui, sans-serif;
  background: rgba(63, 63, 70, 0.4);
  border: 1px solid rgba(113, 113, 122, 0.5);
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  max-width: 65ch;
}
.article-body .in-this-guide h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: #a1a1aa;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.75rem 0;
}
.article-body .in-this-guide ul {
  margin: 0;
  padding-left: 1.25rem;
  list-style: disc;
}
.article-body .in-this-guide li {
  margin-bottom: 0.35rem;
  padding-left: 0;
}
.article-body .in-this-guide li::before {
  display: none;
}

/* Teaser note – "full detail in PDF" */
.article-body .teaser-note {
  font-size: 0.9375rem;
  color: #71717a;
  font-style: italic;
  margin-top: 0.75rem;
  margin-bottom: 1.5rem;
}
.article-body .teaser-note a {
  color: #10b981;
  font-style: normal;
  font-weight: 500;
}

/* Teaser vs full: on screen show teasers, in PDF (print) show full content */
@media screen {
  .article-body .pdf-only {
    display: none !important;
  }
}
@media print {
  .article-body .teaser-only {
    display: none !important;
  }
  .article-body .pdf-only {
    display: block !important;
  }
}

@media print {
  /* Keep dark theme in PDF: white text on dark background */
  body {
    background: #18181b !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .article-body {
    color: #ffffff;
  }
  .article-body h1,
  .article-body h2,
  .article-body h3,
  .article-body strong {
    color: #ffffff !important;
  }
  .article-body code {
    background: #e4e4e7;
    color: #18181b;
  }
  .article-body pre {
    background: #27272a;
    border-color: #3f3f46;
  }
  .article-body pre code {
    color: #e4e4e7;
  }
  .article-body .article-meta {
    color: #10b981 !important;
  }
  .article-body p.lead {
    color: #e4e4e7;
  }
  .article-body h2 {
    border-bottom-color: rgba(113, 113, 122, 0.6);
  }
  .article-body ul li::before,
  .article-body ol li::before {
    color: #10b981;
  }
  .article-body .diagram-wrap {
    background: #27272a;
    border-color: #3f3f46;
  }
  .article-body .callout {
    background: rgba(16, 185, 129, 0.12);
    border-left-color: #10b981;
  }
  .article-body .callout strong {
    color: #34d399 !important;
  }
  .article-fig figcaption {
    color: #a1a1aa;
  }
  nav {
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }
  /* Hide a11y/i18n UI chrome — these have no place in a printed PDF */
  .skip-link,
  .lang-switcher,
  #lang-switcher {
    display: none !important;
  }
}