/*
 * WUC Cisco L3 Field Guide — page-specific styles
 * Loaded conditionally on post 16952 only via functions.php (Rule 5)
 * Palette: sourced from Elementor active kit + production cisco-mds-zoning page
 *
 * Last updated: 2026-05-27
 *   - Fix #1: .wuc-midcta__title now explicitly white-on-dark-navy with high specificity
 *     (was inheriting black from theme h3 styling)
 *   - Fix #2: .wuc-figure svg removes max-height cap; figures render at full natural
 *     aspect ratio for better legibility (was capped at 480px)
 */

.wuc-fg-wrap {
  --wuc-primary: #2563EB;
  --wuc-secondary: #1E40AF;
  --wuc-text: #0F172A;
  --wuc-text-muted: #64748B;
  --wuc-text-soft: #94A3B8;
  --wuc-bg: #FAFAFA;
  --wuc-paper: #FFFFFF;
  --wuc-line: #E2E8F0;
  --wuc-line-soft: #F1F5F9;
  --wuc-dark: #0F172A;
  --wuc-accent: #0D9488;
  --wuc-danger: #DC2626;

  font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  color: var(--wuc-text);
  line-height: 1.65;
  max-width: 1240px;
  margin: 0 auto;
}
.wuc-fg-wrap *, .wuc-fg-wrap *::before, .wuc-fg-wrap *::after { box-sizing: border-box; }

/* Headings — high-specificity to win over theme defaults */
.wuc-fg-wrap h1,
.wuc-fg-wrap h2,
.wuc-fg-wrap h3,
.wuc-fg-wrap h4 {
  letter-spacing: -0.02em;
  color: var(--wuc-dark);
  font-weight: 600;
  font-family: inherit;
}
.wuc-fg-wrap h2 {
  font-size: 32px;
  line-height: 1.2;
  margin-top: 56px;
  margin-bottom: 20px;
  scroll-margin-top: 24px;
}
.wuc-fg-wrap h3 {
  font-size: 22px;
  line-height: 1.3;
  margin-top: 36px;
  margin-bottom: 12px;
}
.wuc-fg-wrap h4 {
  font-size: 18px;
  margin-top: 24px;
  margin-bottom: 10px;
}
.wuc-fg-wrap p { margin-bottom: 18px; line-height: 1.65; }
.wuc-fg-wrap strong { color: var(--wuc-dark); font-weight: 600; }
.wuc-fg-wrap a {
  color: var(--wuc-secondary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: rgba(30, 64, 175, 0.4);
}
.wuc-fg-wrap a:hover { text-decoration-color: var(--wuc-secondary); }
.wuc-fg-wrap ul, .wuc-fg-wrap ol { margin-bottom: 20px; padding-left: 24px; }
.wuc-fg-wrap li { margin-bottom: 8px; line-height: 1.65; }
.wuc-fg-wrap code {
  font-family: 'JetBrains Mono', SFMono-Regular, Consolas, monospace;
  font-size: 0.88em;
  background: var(--wuc-line-soft);
  color: var(--wuc-dark);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--wuc-line);
}

/* === Tag pills === */
.wuc-fg-wrap .wuc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.wuc-fg-wrap .wuc-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--wuc-secondary);
  background: rgba(37, 99, 235, 0.08);
  padding: 5px 11px;
  border-radius: 3px;
  text-decoration: none;
}

/* === Body layout (two-column with sticky TOC) === */
.wuc-fg-wrap .wuc-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 56px;
  align-items: start;
  padding: 24px 0;
}

/* === wpautop defense (fix: empty <p> inserted between aside and article steals col 2) === */
.wuc-fg-wrap .wuc-body > .wuc-toc      { grid-column: 1; grid-row: 1; }
.wuc-fg-wrap .wuc-body > .wuc-content  { grid-column: 2; grid-row: 1; }
.wuc-fg-wrap .wuc-body > p             { display: none; }
.wuc-fg-wrap .wuc-body > br            { display: none; }
.wuc-fg-wrap .wuc-toc {
  position: sticky;
  top: 24px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  padding-right: 8px;
}
.wuc-fg-wrap .wuc-toc__title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--wuc-text-soft);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--wuc-line);
}
.wuc-fg-wrap .wuc-toc__list { list-style: none; padding: 0; margin: 0; }
.wuc-fg-wrap .wuc-toc__item { margin-bottom: 2px; }
.wuc-fg-wrap .wuc-toc__link {
  display: block;
  padding: 6px 12px;
  font-size: 14px;
  color: var(--wuc-text-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  margin-left: -2px;
  line-height: 1.45;
  transition: color 150ms ease, border-color 150ms ease;
}
.wuc-fg-wrap .wuc-toc__link:hover { color: var(--wuc-dark); }
.wuc-fg-wrap .wuc-toc__link.is-active {
  color: var(--wuc-primary);
  font-weight: 600;
  border-left-color: var(--wuc-primary);
}
.wuc-fg-wrap .wuc-content { max-width: 820px; min-width: 0; }

/* === Callouts === */
.wuc-fg-wrap .wuc-callout {
  background: var(--wuc-paper);
  border: 1px solid var(--wuc-line);
  border-left: 3px solid var(--wuc-primary);
  padding: 24px 28px;
  margin: 32px 0;
  border-radius: 0 6px 6px 0;
}
.wuc-fg-wrap .wuc-callout__label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--wuc-primary);
  margin-bottom: 10px;
}
.wuc-fg-wrap .wuc-callout p:last-child { margin-bottom: 0; }
.wuc-fg-wrap .wuc-callout--note { border-left-color: var(--wuc-accent); }
.wuc-fg-wrap .wuc-callout--note .wuc-callout__label { color: var(--wuc-accent); }
.wuc-fg-wrap .wuc-callout--info { border-left-color: var(--wuc-accent); }
.wuc-fg-wrap .wuc-callout--info .wuc-callout__label { color: var(--wuc-secondary); }

/* === Numbered step indicators === */
.wuc-fg-wrap .wuc-step {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 16px;
  margin: 24px 0;
  align-items: start;
}
.wuc-fg-wrap .wuc-step__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--wuc-primary);
  line-height: 1.2;
  text-align: center;
}
.wuc-fg-wrap .wuc-step__body h4 { margin-top: 0; margin-bottom: 8px; font-size: 17px; }

/* === Code blocks (dark) === */
.wuc-fg-wrap pre {
  position: relative;
  background: var(--wuc-dark);
  border: 1px solid #1E293B;
  border-radius: 6px;
  padding: 20px 22px;
  margin: 16px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  font-family: 'JetBrains Mono', SFMono-Regular, Consolas, monospace;
  font-size: 13px;
  line-height: 1.55;
  color: #E2E8F0;
}
.wuc-fg-wrap pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: #E2E8F0;
  font-size: 13px;
  font-family: inherit;
}
.wuc-fg-wrap .wuc-code-copy {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.16);
  padding: 4px 11px;
  font-size: 10px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  border-radius: 3px;
  cursor: pointer;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 1;
}
.wuc-fg-wrap .wuc-code-copy:hover {
  background: var(--wuc-primary);
  color: var(--wuc-paper);
  border-color: var(--wuc-primary);
}
.wuc-fg-wrap .wuc-code-copy.is-copied {
  background: var(--wuc-accent);
  color: var(--wuc-paper);
  border-color: var(--wuc-accent);
}

/* === Tables === */
.wuc-fg-wrap table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
  border: 1px solid var(--wuc-line);
  border-radius: 6px;
  overflow: hidden;
}
.wuc-fg-wrap thead { background: var(--wuc-line-soft); }
.wuc-fg-wrap th {
  text-align: left;
  padding: 12px 14px;
  font-weight: 700;
  color: var(--wuc-dark);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--wuc-line);
}
.wuc-fg-wrap td { padding: 12px 14px; border-bottom: 1px solid var(--wuc-line); vertical-align: top; }
.wuc-fg-wrap tr:last-child td { border-bottom: 0; }

/* === FIGURES — BIGGER (Fix #2) === */
.wuc-fg-wrap .wuc-figure-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--wuc-text-soft);
  margin: 40px 0 12px;
}
.wuc-fg-wrap .wuc-figure {
  margin: 0 0 40px;
  padding: 32px;
  background: var(--wuc-paper);
  border: 1px solid var(--wuc-line);
  border-radius: 8px;
}
.wuc-fg-wrap .wuc-figure svg {
  width: 100%;
  height: auto;
  display: block;
  /* max-height removed — was 480px, now natural aspect ratio for larger render */
}
.wuc-fg-wrap .wuc-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}
.wuc-fg-wrap .wuc-figure__caption {
  font-size: 13px;
  color: var(--wuc-text-soft);
  margin-top: 16px;
  line-height: 1.5;
  font-style: italic;
  text-align: center;
}

/* === MID-CTA (Fix #1 — explicit white text on dark navy with high specificity) === */
.wuc-fg-wrap .wuc-midcta {
  margin: 40px 0;
  padding: 32px 36px;
  background: var(--wuc-dark);
  color: var(--wuc-paper);
  border-radius: 10px;
  border-left: 4px solid var(--wuc-primary);
}
.wuc-fg-wrap .wuc-midcta,
.wuc-fg-wrap .wuc-midcta h1,
.wuc-fg-wrap .wuc-midcta h2,
.wuc-fg-wrap .wuc-midcta h3,
.wuc-fg-wrap .wuc-midcta h4,
.wuc-fg-wrap .wuc-midcta p,
.wuc-fg-wrap .wuc-midcta span,
.wuc-fg-wrap .wuc-midcta strong {
  color: var(--wuc-paper);
}
.wuc-fg-wrap .wuc-midcta__label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--wuc-accent);
  margin-bottom: 12px;
}
.wuc-fg-wrap .wuc-midcta__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--wuc-paper);
  margin-bottom: 12px;
  margin-top: 0;
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.wuc-fg-wrap .wuc-midcta__body {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 20px;
  font-size: 15px;
  line-height: 1.6;
}
.wuc-fg-wrap .wuc-midcta__button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--wuc-primary);
  color: var(--wuc-paper);
  padding: 12px 24px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  border: 0;
}
.wuc-fg-wrap .wuc-midcta__button:hover {
  background: var(--wuc-secondary);
  color: var(--wuc-paper);
  text-decoration: none;
}

/* === When-to-call section === */
.wuc-fg-wrap .wuc-call-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--wuc-line);
}

/* === Author bio === */
.wuc-fg-wrap .wuc-author-bio {
  margin: 56px 0 24px;
  padding: 28px;
  background: var(--wuc-paper);
  border: 1px solid var(--wuc-line);
  border-radius: 6px;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  align-items: start;
}
.wuc-fg-wrap .wuc-author-bio__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--wuc-secondary);
  color: var(--wuc-paper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
}
.wuc-fg-wrap .wuc-author-bio__name {
  font-size: 18px;
  font-weight: 700;
  color: var(--wuc-dark);
  margin-bottom: 8px;
}
.wuc-fg-wrap .wuc-author-bio__body {
  font-size: 15px;
  color: var(--wuc-text-muted);
  line-height: 1.55;
}

/* === Related card === */
.wuc-fg-wrap .wuc-related-card {
  margin: 32px 0;
  padding: 28px;
  background: var(--wuc-paper);
  border: 1px solid var(--wuc-line);
  border-radius: 6px;
}
.wuc-fg-wrap .wuc-related-card__label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--wuc-text-soft);
  margin-bottom: 10px;
}
.wuc-fg-wrap .wuc-related-card__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--wuc-dark);
  margin-bottom: 10px;
  line-height: 1.3;
}
.wuc-fg-wrap .wuc-related-card__body {
  color: var(--wuc-text-muted);
  margin-bottom: 14px;
  font-size: 15px;
}

/* === Mobile TOC toggle === */
.wuc-fg-wrap .wuc-toc-mobile-toggle {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--wuc-primary);
  color: var(--wuc-paper);
  border: none;
  box-shadow: 0 8px 24px -8px rgba(37, 99, 235, 0.4);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

/* === Responsive === */
@media (max-width: 1024px) {
  .wuc-fg-wrap .wuc-body { grid-template-columns: 1fr; gap: 32px; }
  .wuc-fg-wrap .wuc-toc { display: none; }
  .wuc-fg-wrap .wuc-toc.is-open {
    display: block;
    position: fixed;
    inset: 0;
    background: var(--wuc-paper);
    padding: 24px;
    z-index: 80;
    overflow-y: auto;
  }
  .wuc-fg-wrap .wuc-toc-mobile-toggle { display: inline-flex; }
}
@media (max-width: 640px) {
  .wuc-fg-wrap h2 { font-size: 24px; }
  .wuc-fg-wrap .wuc-midcta { padding: 22px 20px; }
  .wuc-fg-wrap .wuc-midcta__title { font-size: 19px; }
  .wuc-fg-wrap .wuc-callout { padding: 18px 20px; }
  .wuc-fg-wrap .wuc-author-bio { grid-template-columns: 1fr; padding: 22px; }
  .wuc-fg-wrap .wuc-step { grid-template-columns: 26px 1fr; gap: 12px; }
  .wuc-fg-wrap .wuc-step__num { font-size: 18px; }
  .wuc-fg-wrap pre { padding: 16px; font-size: 12px; }
  .wuc-fg-wrap table { font-size: 12px; }
  .wuc-fg-wrap th, .wuc-fg-wrap td { padding: 10px 12px; }
  .wuc-fg-wrap .wuc-figure { padding: 16px; }
  .wuc-fg-wrap .wuc-figure-label { margin: 28px 0 8px; }
}

/* Print */
@media print {
  .wuc-fg-wrap .wuc-toc,
  .wuc-fg-wrap .wuc-toc-mobile-toggle,
  .wuc-fg-wrap .wuc-midcta { display: none !important; }
  .wuc-fg-wrap pre { border: 1px solid #ccc !important; background: #f8f8f8 !important; color: #000 !important; }
  .wuc-fg-wrap pre code { color: #000 !important; }
}

/* =====================================================================
 * cisco-l3-guide.css v1.0.2 patch — wpautop defense for .wuc-step
 * ---------------------------------------------------------------------
 * BUG: wpautop inserts an empty <p></p> between <span class="wuc-step__num">
 *      and <div class="wuc-step__body">. In .wuc-step's grid container
 *      (display:grid; grid-template-columns: 32px 616px; grid-auto-flow: row),
 *      the empty <p> consumes cell [r1,c2] (616px), forcing .wuc-step__body
 *      to wrap into cell [r2,c1] = 32px wide. The <pre> inside collapses
 *      to ~45px (padding + scrollbar), code becomes unreadable.
 *
 * AFFECTED: 3 of 3 .wuc-step blocks on post 16952
 *   - Physical setup section (abs y=3601)
 *   - Hostname section (abs y=5186, y=6301)
 *
 * FIX: (1) hide empty <p> direct children of .wuc-step
 *      (2) pin grid placement explicitly so child order can't be defeated
 *          by future wpautop pollution
 *
 * Deployed: 2026-05-27 — v1.0.1 -> v1.0.2
 * ===================================================================== */

.wuc-step > p:empty {
  display: none;
}

.wuc-step > .wuc-step__num {
  grid-column: 1;
  grid-row: 1;
}

.wuc-step > .wuc-step__body {
  grid-column: 2;
  grid-row: 1;
}