/* ==========================================================================
   salesemailoutreach.org — Editorial Deliverability Lab Design System (.seo-*)
   Palette: Warm Terracotta (#c2410c), Deep Charcoal (#18181b), Parchment Stone (#fbf9f5)
   Fonts: 'Space Grotesk', 'Newsreader', 'Fira Code'
   ========================================================================== */

:root {
  --seo-bg: #fbf9f5;
  --seo-surface: #ffffff;
  --seo-surface-alt: #f4efe6;
  --seo-charcoal: #18181b;
  --seo-ink: #27272a;
  --seo-muted: #52525b;
  --seo-border: #e4ded3;
  --seo-border-strong: #c8bfb0;
  --seo-terracotta: #c2410c;
  --seo-terracotta-dark: #9a3412;
  --seo-terracotta-soft: #ffedd5;
  --seo-forest: #15803d;
  --seo-forest-soft: #dcfce7;
  --seo-ochre: #b45309;
  --seo-ochre-soft: #fef3c7;
  --seo-danger: #b91c1c;
  --seo-font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --seo-font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --seo-font-mono: 'Fira Code', 'SFMono-Regular', Consolas, monospace;
  --seo-radius: 10px;
  --seo-radius-lg: 14px;
  --seo-shadow: 0 4px 18px rgba(24, 24, 27, 0.06);
  --seo-max-w: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
  max-width: 100%;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--seo-bg);
  color: var(--seo-ink);
  font-family: var(--seo-font-sans);
  line-height: 1.68;
  overflow-x: hidden;
  max-width: 100%;
  -webkit-font-smoothing: antialiased;
}

img, svg, video, canvas, table {
  max-width: 100%;
}

a {
  color: var(--seo-terracotta);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--seo-terracotta-dark);
}

/* Top Lab Telemetry Ticker */
.seo-lab-ticker {
  background-color: var(--seo-charcoal);
  color: #f4f4f5;
  font-family: var(--seo-font-mono);
  font-size: 0.78rem;
  padding: 0.5rem 1rem;
  border-bottom: 2px solid var(--seo-terracotta);
}

.seo-lab-ticker-inner {
  max-width: var(--seo-max-w);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.25rem;
}

.seo-ticker-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #fb923c;
  font-weight: 600;
}

.seo-ticker-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  color: #d4d4d8;
}

.seo-ticker-metrics strong {
  color: #4ade80;
}

/* Sticky Editorial Header */
.seo-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(251, 249, 245, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--seo-border);
}

.seo-nav-container {
  max-width: var(--seo-max-w);
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--seo-font-sans);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--seo-charcoal);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.seo-brand-badge {
  background-color: var(--seo-terracotta);
  color: #ffffff;
  font-family: var(--seo-font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.48rem;
  border-radius: 5px;
  font-weight: 600;
}

.seo-nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.seo-nav-pill {
  text-decoration: none;
  color: var(--seo-ink);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.42rem 0.75rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

.seo-nav-pill:hover {
  background-color: var(--seo-surface-alt);
  border-color: var(--seo-border-strong);
  color: var(--seo-charcoal);
}

.seo-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--seo-terracotta);
  color: #ffffff !important;
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 700;
  padding: 0.5rem 0.95rem;
  border-radius: 7px;
  border: 1px solid var(--seo-terracotta-dark);
  white-space: nowrap;
}

.seo-nav-cta:hover {
  background-color: var(--seo-terracotta-dark);
}

.seo-menu-toggle {
  display: none;
  background: var(--seo-surface);
  border: 1px solid var(--seo-border-strong);
  color: var(--seo-charcoal);
  border-radius: 6px;
  padding: 0.45rem 0.7rem;
  font-family: var(--seo-font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

/* Main Layout Container */
.seo-main {
  max-width: var(--seo-max-w);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.seo-breadcrumbs {
  font-family: var(--seo-font-mono);
  font-size: 0.78rem;
  color: var(--seo-muted);
  margin-bottom: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.seo-breadcrumbs a {
  color: var(--seo-muted);
  text-decoration: none;
}

.seo-breadcrumbs a:hover {
  color: var(--seo-terracotta);
  text-decoration: underline;
}

/* Hero Section */
.seo-hero {
  background-color: var(--seo-surface);
  border: 1px solid var(--seo-border);
  border-left: 5px solid var(--seo-terracotta);
  border-radius: var(--seo-radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: var(--seo-shadow);
  margin-bottom: 2.25rem;
}

.seo-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--seo-terracotta-soft);
  color: var(--seo-terracotta-dark);
  font-family: var(--seo-font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  margin-bottom: 1rem;
}

.seo-hero h1, .seo-article-header h1 {
  font-family: var(--seo-font-serif);
  font-size: clamp(1.85rem, 3.6vw, 2.75rem);
  line-height: 1.18;
  color: var(--seo-charcoal);
  margin: 0 0 1rem;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.seo-hero-sub {
  font-size: 1.06rem;
  color: var(--seo-ink);
  max-width: 900px;
  margin: 0 0 1.5rem;
  line-height: 1.68;
}

.seo-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 1.25rem;
}

.seo-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: var(--seo-font-sans);
  font-size: 0.92rem;
  font-weight: 700;
  padding: 0.72rem 1.25rem;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.seo-btn-primary {
  background-color: var(--seo-terracotta);
  color: #ffffff !important;
  border-color: var(--seo-terracotta-dark);
}

.seo-btn-primary:hover {
  background-color: var(--seo-terracotta-dark);
}

.seo-btn-forest {
  background-color: var(--seo-forest);
  color: #ffffff !important;
  border-color: #166534;
}

.seo-btn-forest:hover {
  background-color: #166534;
}

.seo-btn-outline {
  background-color: var(--seo-surface-alt);
  color: var(--seo-charcoal) !important;
  border-color: var(--seo-border-strong);
}

.seo-btn-outline:hover {
  background-color: #eae2d3;
}

/* Lab Verdict Scorecard Grid (Inner Articles & Hub) */
.seo-scorecard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.15rem;
  margin: 1.75rem 0 2.25rem;
}

.seo-scorecard-item {
  background-color: var(--seo-surface);
  border: 1px solid var(--seo-border);
  border-top: 4px solid var(--seo-terracotta);
  border-radius: var(--seo-radius);
  padding: 1.35rem;
  box-shadow: var(--seo-shadow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.seo-scorecard-item.seo-rank-verify {
  border-top-color: var(--seo-forest);
}

.seo-scorecard-item.seo-rank-send {
  border-top-color: var(--seo-ochre);
}

.seo-score-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.seo-score-layer {
  font-family: var(--seo-font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--seo-muted);
}

.seo-score-pill {
  font-family: var(--seo-font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.22rem 0.55rem;
  border-radius: 5px;
  background-color: var(--seo-forest-soft);
  color: var(--seo-forest);
}

.seo-scorecard-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.18rem;
  color: var(--seo-charcoal);
}

.seo-scorecard-item p {
  font-size: 0.92rem;
  color: var(--seo-ink);
  margin: 0 0 1rem;
}

/* Typography & Sections */
.seo-section {
  background-color: var(--seo-surface);
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--seo-shadow);
}

.seo-section h2, article h2 {
  font-family: var(--seo-font-serif);
  font-size: clamp(1.42rem, 2.5vw, 1.9rem);
  color: var(--seo-charcoal);
  margin: 1.75rem 0 0.85rem;
  padding-bottom: 0.45rem;
  border-bottom: 2px solid var(--seo-surface-alt);
  line-height: 1.28;
}

.seo-section h2:first-child {
  margin-top: 0;
}

.seo-section h3, article h3 {
  font-family: var(--seo-font-sans);
  font-size: 1.2rem;
  color: var(--seo-charcoal);
  margin: 1.4rem 0 0.6rem;
}

.seo-section p, article p {
  margin: 0 0 1.1rem;
}

.seo-section ul, .seo-section ol, article ul, article ol {
  margin: 0 0 1.25rem;
  padding-left: 1.35rem;
}

.seo-section li, article li {
  margin-bottom: 0.5rem;
}

/* Answer-First Lead Callout */
.seo-answer-first {
  background-color: var(--seo-surface-alt);
  border-left: 4px solid var(--seo-terracotta);
  padding: 1rem 1.25rem;
  border-radius: 0 8px 8px 0;
  margin: 1rem 0 1.4rem;
  font-weight: 500;
}

/* Honest Trade-offs / Objectivity Box */
.seo-tradeoff-box {
  background-color: #fffbeb;
  border: 1px solid #fde68a;
  border-left: 5px solid var(--seo-ochre);
  border-radius: var(--seo-radius);
  padding: 1.4rem 1.5rem;
  margin: 1.85rem 0;
}

.seo-tradeoff-box h3 {
  margin-top: 0;
  color: #92400e;
  font-size: 1.1rem;
}

/* Responsive Data Tables */
.seo-table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.4rem 0 1.8rem;
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius);
  background: var(--seo-surface);
}

.seo-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
  font-size: 0.9rem;
}

.seo-table th, .seo-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--seo-border);
  vertical-align: top;
}

.seo-table th {
  background-color: var(--seo-charcoal);
  color: #ffffff;
  font-family: var(--seo-font-sans);
  font-weight: 600;
  font-size: 0.84rem;
  letter-spacing: 0.02em;
}

.seo-table tr:nth-child(even) td {
  background-color: #faf7f2;
}

.seo-table tr.seo-winner-row td {
  background-color: #fff7ed;
  font-weight: 600;
}

/* Interactive Deliverability Simulator Widget */
.seo-simulator-box {
  background: linear-gradient(180deg, #ffffff 0%, #f7f3eb 100%);
  border: 2px solid var(--seo-terracotta);
  border-radius: var(--seo-radius-lg);
  padding: 1.85rem;
  margin: 2rem 0;
  box-shadow: var(--seo-shadow);
}

.seo-sim-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--seo-border);
}

.seo-sim-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.1rem;
  margin-bottom: 1.5rem;
}

.seo-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.seo-field label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--seo-charcoal);
}

.seo-field input, .seo-field select {
  font-family: var(--seo-font-mono);
  font-size: 0.92rem;
  padding: 0.62rem 0.75rem;
  border: 1px solid var(--seo-border-strong);
  border-radius: 7px;
  background-color: #ffffff;
  color: var(--seo-charcoal);
  width: 100%;
}

.seo-sim-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  background-color: var(--seo-charcoal);
  color: #ffffff;
  padding: 1.35rem;
  border-radius: var(--seo-radius);
  margin-bottom: 1.25rem;
}

.seo-sim-metric {
  padding: 0.5rem;
}

.seo-sim-metric-label {
  font-family: var(--seo-font-mono);
  font-size: 0.75rem;
  color: #a1a1aa;
  display: block;
  margin-bottom: 0.25rem;
}

.seo-sim-metric-val {
  font-family: var(--seo-font-mono);
  font-size: 1.45rem;
  font-weight: 700;
  color: #4ade80;
}

.seo-sim-metric-val.seo-warn {
  color: #fb923c;
}

/* Hub Cards & Spoke Grid */
.seo-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.15rem;
  margin: 1.25rem 0;
}

.seo-card {
  background-color: var(--seo-surface);
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.seo-card:hover {
  border-color: var(--seo-terracotta);
  transform: translateY(-2px);
}

.seo-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.08rem;
}

.seo-card p {
  font-size: 0.9rem;
  color: var(--seo-muted);
  margin: 0 0 1rem;
}

/* FAQ Accordion */
.seo-faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.seo-faq-item {
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius);
  background-color: var(--seo-surface);
  overflow: hidden;
}

.seo-faq-item summary {
  padding: 1rem 1.25rem;
  font-weight: 700;
  color: var(--seo-charcoal);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background-color: var(--seo-surface-alt);
}

.seo-faq-item summary::-webkit-details-marker {
  display: none;
}

.seo-faq-item summary::after {
  content: "+";
  font-family: var(--seo-font-mono);
  font-size: 1.2rem;
  color: var(--seo-terracotta);
  flex-shrink: 0;
}

.seo-faq-item[open] summary::after {
  content: "−";
}

.seo-faq-body {
  padding: 1.1rem 1.25rem;
  border-top: 1px solid var(--seo-border);
  font-size: 0.95rem;
}

/* Footer & Directory */
.seo-footer {
  background-color: var(--seo-charcoal);
  color: #e4e4e7;
  padding: 3.5rem 1.25rem 5rem;
  margin-top: 3rem;
  border-top: 4px solid var(--seo-terracotta);
}

.seo-footer-inner {
  max-width: var(--seo-max-w);
  margin: 0 auto;
}

.seo-footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.seo-footer-col h4 {
  color: #ffffff;
  font-size: 0.95rem;
  margin: 0 0 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-family: var(--seo-font-mono);
}

.seo-footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.seo-footer-col li {
  margin-bottom: 0.5rem;
}

.seo-footer-col a {
  color: #d4d4d8;
  text-decoration: none;
  font-size: 0.88rem;
}

.seo-footer-col a:hover {
  color: #fb923c;
  text-decoration: underline;
}

.seo-footer-bottom {
  padding-top: 1.75rem;
  border-top: 1px solid #3f3f46;
  font-size: 0.82rem;
  color: #a1a1aa;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

/* Floating Quick Action Bar (Safe on Mobile) */
.seo-float-bar {
  position: fixed;
  bottom: 14px;
  right: 14px;
  z-index: 90;
  display: flex;
  gap: 0.5rem;
}

.seo-float-btn {
  background-color: var(--seo-charcoal);
  color: #ffffff !important;
  border: 1px solid var(--seo-terracotta);
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.22);
}

/* Mobile & Android Viewport Adaptation (360px - 768px) */
@media (max-width: 860px) {
  .seo-menu-toggle {
    display: inline-flex;
    align-items: center;
  }

  .seo-nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.75rem;
    border-top: 1px solid var(--seo-border);
    margin-top: 0.65rem;
  }

  .seo-nav-links.seo-open {
    display: flex;
  }

  .seo-nav-container {
    flex-wrap: wrap;
  }

  .seo-hero, .seo-section, .seo-simulator-box {
    padding: 1.35rem 1.1rem;
  }

  .seo-main {
    padding: 1.25rem 0.9rem 4.5rem;
  }

  .seo-cta-row .seo-btn {
    width: 100%;
    text-align: center;
  }

  .seo-float-bar {
    bottom: 10px;
    right: 10px;
    left: auto;
  }
}