/* Ketchup Consulting — dark glassmorphic theme from design-tokens.json */
:root {
  --bg-primary: #09090b;
  --bg-elevated: rgba(255,255,255,0.06);
  --bg-elevated-hover: rgba(255,255,255,0.10);
  --bg-elevated-border: rgba(255,255,255,0.08);
  --bg-overlay: rgba(0,0,0,0.6);

  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --accent-secondary: #ff6e00;
  --accent-gradient: linear-gradient(135deg, #f59e0b, #ff6e00);

  --text-primary: #fafafa;
  --text-secondary: rgba(255,255,255,0.6);
  --text-tertiary: rgba(255,255,255,0.4);
  --text-on-accent: #09090b;

  --border-subtle: rgba(255,255,255,0.08);
  --border-default: rgba(255,255,255,0.12);
  --border-strong: rgba(255,255,255,0.20);
  --border-accent: rgba(245,158,11,0.3);

  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --container: 1180px;
  --container-narrow: 760px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Ambient mesh gradient background — adds depth without busy patterns */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(60% 50% at 20% 10%, rgba(245,158,11,0.10), transparent 60%),
    radial-gradient(40% 40% at 80% 80%, rgba(255,110,0,0.06), transparent 60%),
    radial-gradient(80% 60% at 50% 100%, rgba(245,158,11,0.04), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

main, header, footer { position: relative; z-index: 1; }

a { color: var(--accent); text-decoration: none; transition: color 0.18s ease; }
a:hover { color: var(--accent-hover); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); font-weight: 700; }
h2 { font-size: clamp(1.875rem, 3.2vw, 2.5rem); margin: 2.5rem 0 1rem; }
h3 { font-size: clamp(1.375rem, 2.2vw, 1.625rem); margin: 2rem 0 0.75rem; }

p { margin: 0 0 1.1rem; color: var(--text-primary); }
p + p { margin-top: 0; }

ul, ol { margin: 0 0 1.2rem 1.25rem; }
li { margin-bottom: 0.4rem; color: var(--text-primary); }

code {
  font-family: var(--font-mono);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  font-size: 0.92em;
  color: var(--accent-hover);
}

blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.5rem 1.25rem;
  margin: 1.5rem 0;
  color: var(--text-secondary);
  font-style: italic;
  background: var(--bg-elevated);
  border-radius: 0 8px 8px 0;
}

hr {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 2.5rem 0;
}

img { max-width: 100%; height: auto; display: block; border-radius: 12px; }

/* Layout */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: var(--container-narrow); margin: 0 auto; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(9,9,11,0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  text-decoration: none;
}
.nav-logo svg { flex-shrink: 0; }
.nav-logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-primary);
}
.nav-logo-con { color: var(--accent-secondary); margin-left: 2px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--text-primary); }

/* Article */
.article-hero {
  padding: 80px 24px 32px;
  border-bottom: 1px solid var(--border-subtle);
}
.article-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.article-title {
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
  max-width: 920px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}
.article-meta span:not(:last-child)::after {
  content: '·';
  margin-left: 16px;
  color: var(--border-strong);
}
.article-body { padding: 48px 24px 80px; }
.article-body .narrow > * { font-size: 1.0625rem; line-height: 1.75; }
.article-body h2 { font-size: clamp(1.625rem, 2.6vw, 2rem); }
.article-body p, .article-body li { color: rgba(255,255,255,0.85); }

/* Blog hub */
.hub-hero {
  padding: 100px 24px 40px;
  text-align: left;
}
.hub-list { padding: 16px 24px 100px; }
@media (min-width: 880px) {
  .hub-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
  }
  .hub-list .hub-card { margin-bottom: 0; }
}
.hub-card {
  display: block;
  padding: 28px 32px;
  margin-bottom: 18px;
  background: var(--bg-elevated);
  border: 1px solid var(--bg-elevated-border);
  border-radius: 14px;
  transition: all 0.22s ease;
}
.hub-card:hover {
  background: var(--bg-elevated-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}
.hub-card-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.hub-card-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.hub-card-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
  margin-bottom: 12px;
}
.hub-card-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
}

/* CTA — used at article tail + landing */
.cta {
  margin: 56px 0 0;
  padding: 36px 32px;
  background: var(--accent-gradient);
  border-radius: 16px;
  color: var(--text-on-accent);
  text-align: left;
}
.cta-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 10px;
  color: var(--text-on-accent);
}
.cta-body { color: rgba(9,9,11,0.85); margin-bottom: 20px; font-size: 1rem; line-height: 1.5; }
.cta-button {
  display: inline-block;
  padding: 14px 28px;
  background: var(--text-on-accent);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: transform 0.18s ease;
}
.cta-button:hover { transform: translateY(-2px); color: var(--accent); }

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 40px 24px;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer a { color: var(--text-secondary); margin-left: 18px; }
.footer a:hover { color: var(--accent); }

/* ============================================================
   Insights — article + hub extensions (added 2026-05-12)
   Components: hub filters, hub coming, reading progress,
   breadcrumbs, article sub, author chip, trust bar, TL;DR,
   schema table, how-to steps, FAQ details, author card, related
   ============================================================ */

/* Reading progress bar */
.reading-progress {
  position: fixed; top: 0; left: 0; height: 2px;
  background: var(--accent-gradient);
  z-index: 100; width: 0; transition: width 0.1s linear;
}

/* Hub filter pills */
.hub-filters {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 28px;
}
.hub-filter {
  background: var(--bg-elevated);
  border: 1px solid var(--bg-elevated-border);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.82rem; font-weight: 500;
  letter-spacing: 0.04em;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.hub-filter:hover { background: var(--bg-elevated-hover); color: var(--text-primary); }
.hub-filter.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-on-accent);
}

/* "Coming next" section */
.hub-coming {
  padding: 40px 24px 80px;
  border-top: 1px solid var(--border-subtle);
  margin-top: 20px;
}
.hub-coming-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}
.hub-coming-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 10px;
}
.hub-coming-item {
  background: var(--bg-elevated);
  border: 1px dashed var(--border-default);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}

/* Breadcrumbs */
.breadcrumbs {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 18px;
}
.breadcrumbs a { color: var(--text-tertiary); }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs .sep { margin: 0 8px; color: var(--border-strong); }
.breadcrumbs .current { color: var(--text-secondary); }

/* Article sub-heading + author chip */
.article-sub {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--text-secondary);
  margin-top: 18px;
  max-width: 760px;
}
.author-chip {
  display: inline-flex; align-items: center; gap: 8px;
}
.author-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: var(--text-on-accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center;
  letter-spacing: 0.04em;
}

/* Trust bar (pills) */
.trust-bar {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 28px;
}
.trust-bar .pill {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: 999px;
}

/* TL;DR */
.tldr {
  background: var(--bg-elevated);
  border: 1px solid var(--border-accent);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
  padding: 22px 26px;
  margin: 0 0 40px;
}
.tldr-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.tldr ul { margin: 0 0 0 1.1rem; padding: 0; }
.tldr li { color: var(--text-primary); margin-bottom: 6px; font-size: 1rem; line-height: 1.55; }
.tldr li:last-child { margin-bottom: 0; }

/* Tables (schema stack etc.) */
.table-wrap {
  margin: 1.5rem 0;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow-x: auto;
  background: var(--bg-elevated);
}
.schema-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.schema-table th, .schema-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
}
.schema-table th {
  background: rgba(255,255,255,0.04);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.schema-table tbody tr:last-child td { border-bottom: none; }
.schema-table td:first-child {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-hover);
  white-space: nowrap;
}

/* Section eyebrows for in-article sections */
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

/* How-To block */
.howto-block {
  margin: 56px 0 40px;
  padding: 36px 28px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
}
.howto-block h2 { margin-top: 4px; }
.howto-steps {
  list-style: none;
  counter-reset: step;
  margin: 28px 0 0;
  padding: 0;
}
.howto-steps li {
  counter-increment: step;
  position: relative;
  padding: 18px 18px 18px 70px;
  margin-bottom: 12px;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}
.howto-steps li::before {
  content: counter(step);
  position: absolute;
  left: 18px;
  top: 18px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: var(--text-on-accent);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
}
.step-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.step-text { color: var(--text-secondary); line-height: 1.6; }

/* FAQ */
.faq-block { margin: 48px 0 40px; }
.faq-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color 0.18s ease;
}
.faq-item[open] { border-color: var(--border-accent); }
.faq-question {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 56px;
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}
.faq-question::after {
  content: '+';
  position: absolute;
  right: 22px; top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 400;
  transition: transform 0.2s ease;
}
.faq-item[open] .faq-question::after { content: '\2212'; }
.faq-answer {
  padding: 0 20px 20px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Author card */
.author-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 20px;
  align-items: start;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 24px;
  margin: 40px 0;
}
.author-avatar-lg {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: var(--text-on-accent);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.8rem;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: 0.02em;
}
.author-role {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
}

/* Related */
.related { margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--border-subtle); }
.related h2 { margin-top: 4px; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 20px;
}
.related-card {
  display: block;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 20px 22px;
  color: inherit;
  transition: background 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}
.related-card:hover {
  background: var(--bg-elevated-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
  color: inherit;
}
.related-card h3 {
  font-size: 1.1rem;
  margin: 6px 0 8px;
  color: var(--text-primary);
}
.related-card p { font-size: 0.9rem; color: var(--text-secondary); margin: 0; }
.related-cat {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

@media (max-width: 640px) {
  .nav-inner { padding: 14px 18px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 0.82rem; }
  .article-hero { padding: 56px 18px 24px; }
  .article-body { padding: 32px 18px 56px; }
  .hub-list { padding: 16px 18px 60px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer a { margin-left: 0; margin-right: 14px; }
  .howto-block { padding: 24px 18px; }
  .howto-steps li { padding: 14px 14px 14px 60px; }
  .howto-steps li::before { left: 12px; top: 14px; width: 32px; height: 32px; font-size: 1rem; }
  .author-card { grid-template-columns: 1fr; }
  .author-avatar-lg { width: 64px; height: 64px; font-size: 1.4rem; }
  .article-sub { font-size: 1.1rem; }
}