/* Featured homepage guide */
.featured-guide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-24);
  margin-bottom: var(--space-32);
  padding: var(--space-24);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg,
    var(--color-primary-highlight) 0%,
    var(--color-surface) 60%);
  box-shadow: var(--shadow-xs);
}

.featured-guide__content {
  max-width: 640px;
}

.featured-guide__content h2 {
  margin: 0;
  font-size: var(--font-size-2xl);
  letter-spacing: var(--letter-spacing-tight);
}

.featured-guide__eyebrow,
.landing-eyebrow {
  margin: 0 0 var(--space-8);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.featured-guide p {
  margin: var(--space-8) 0 0;
  color: var(--color-text-secondary);
  max-width: 60ch;
}

.featured-guide .btn {
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .featured-guide {
    align-items: flex-start;
    flex-direction: column;
    padding: var(--space-20);
  }
}

/* SEO landing page */
.landing-page {
  min-height: 100vh;
  background: var(--color-background);
}

.landing-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.landing-header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.landing-brand {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
}

.landing-nav {
  display: flex;
  gap: var(--space-16);
}

.landing-nav a {
  padding-inline: var(--space-6);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
}

.landing-nav a:hover,
.landing-brand:hover {
  color: var(--color-primary-hover);
}

.landing-hero {
  padding: var(--space-32) 0;
  border-top: none;
}

.landing-hero__content h1 {
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.15;
}

.landing-hero__grid,
.landing-two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  gap: var(--space-32);
  align-items: start;
}

.landing-hero__content h1 {
  max-width: 820px;
  margin-bottom: var(--space-16);
}

.landing-hero__lead {
  max-width: 760px;
  color: var(--color-text-secondary);
  font-size: var(--font-size-xl);
}

.landing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-12);
  margin-top: var(--space-24);
}

.landing-summary-card,
.landing-card,
.landing-faq-list article {
  padding: var(--space-20);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-xs);
}

.landing-summary-card h2,
.landing-card h3,
.landing-faq-list h3 {
  margin-bottom: var(--space-12);
  font-size: var(--font-size-lg);
}

.landing-summary-card h2 {
  font-size: var(--font-size-xl);
}

.landing-summary-card__diagram {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: var(--space-16);
  color: var(--color-primary);
}

.landing-callout {
  display: flex;
  align-items: flex-start;
  gap: var(--space-16);
}

.landing-callout__icon {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-warning);
}

.landing-callout h2 {
  margin: 0 0 var(--space-8);
  font-size: var(--font-size-xl);
}

.landing-callout p {
  margin: 0;
}

.landing-summary-card ul,
.landing-checklist {
  display: grid;
  gap: var(--space-10);
  padding-left: var(--space-20);
  color: var(--color-text-secondary);
}

.landing-section {
  padding: var(--space-32) 0;
  border-top: 1px solid var(--color-card-border);
}

.landing-section--muted {
  background-color: var(--color-surface-muted);
  border-top-color: transparent;
}

.landing-section--warning {
  background-color: rgba(var(--color-warning-rgb), 0.08);
  border-top-color: transparent;
}

.landing-hero {
  border-top: none;
}

.landing-section__header {
  max-width: 800px;
  margin-bottom: var(--space-24);
}

.landing-section__header p,
.landing-two-column p,
.landing-section--warning p {
  margin-top: var(--space-8);
  color: var(--color-text-secondary);
}

.landing-card-grid,
.landing-faq-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-16);
}

.landing-card code {
  display: inline-block;
  margin-bottom: var(--space-8);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  background-color: var(--color-secondary);
  color: var(--color-text);
  font-family: var(--font-family-mono);
}

.landing-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
}

.landing-table {
  width: 100%;
  border-collapse: collapse;
}

.landing-table th,
.landing-table td {
  padding: var(--space-12);
  border-bottom: 1px solid var(--color-card-border-inner);
  text-align: left;
  vertical-align: top;
}

.landing-table th {
  background-color: var(--color-secondary);
  font-weight: var(--font-weight-semibold);
}

.landing-table tr:last-child td {
  border-bottom: none;
}

.landing-faq-list article p {
  color: var(--color-text-secondary);
}

@media (min-width: 1200px) {
  .landing-page .container {
    max-width: 1200px;
    padding-inline: var(--space-24);
  }
}

@media (max-width: 768px) {
  .landing-header__content,
  .landing-nav,
  .landing-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .landing-hero__grid,
  .landing-two-column {
    grid-template-columns: 1fr;
  }
}