/* =========================================================
   Externalsight Blog Post — "Operator Console" edition
   v20260510  |  Aligned with landing.v20260509 design tokens
   ========================================================= */

/* ── Tokens ── */
:root {
  --ob-bg:           #07090C;
  --ob-bg-alt:       #0B0E13;
  --ob-panel:        #10141B;
  --ob-panel2:       #161B23;
  --ob-ink:          #E8ECF2;
  --ob-ink-soft:     #B6BFCE;
  --ob-ink-mute:     #6B7689;
  --ob-ink-dim:      #48505F;
  --ob-line:         rgba(255,255,255,0.055);
  --ob-line-strong:  rgba(255,255,255,0.12);
  --ob-accent:       #5EE9F0;
  --ob-accent2:      #4FD1C5;
  --ob-accent-soft:  rgba(94,233,240,0.13);
  --ob-accent-glow:  rgba(94,233,240,0.07);
  --ob-success:      #4ADE80;
  --ob-warn:         #FBBF24;
  --ob-danger:       #FB7185;
  --ob-purple:       #A78BFA;
}

*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding: 0;
  background: var(--ob-bg);
  color: var(--ob-ink);
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { text-decoration: none; color: inherit; }

/* =========================================================
   READING PROGRESS BAR
   ========================================================= */
.progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--ob-accent) 0%, var(--ob-purple) 60%, transparent 100%);
  z-index: 300;
  pointer-events: none;
  transition: width 80ms linear;
  box-shadow: 0 0 12px rgba(94, 233, 240, 0.5);
}

/* =========================================================
   NAV
   ========================================================= */
.art-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 56px;
  background: rgba(7, 9, 12, 0.9);
  border-bottom: 1px solid var(--ob-line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.art-nav-brand {
  display: flex;
  align-items: center;
  gap: 9px;
}

.art-nav-brand-icon {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  border: 1px solid var(--ob-line-strong);
  background: var(--ob-panel);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.art-nav-brand-icon img { display: block; }

.art-nav-brand-name {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ob-ink);
  letter-spacing: -0.005em;
}

.art-nav-sep {
  width: 1px;
  height: 18px;
  background: var(--ob-line-strong);
  margin: 0 2px;
}

.art-nav-section {
  font-size: 13px;
  color: var(--ob-ink-mute);
  font-weight: 450;
}

.art-nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.art-nav-blog {
  font-size: 13px;
  color: var(--ob-ink-soft);
  transition: color 150ms;
  font-weight: 450;
}
.art-nav-blog:hover { color: var(--ob-ink); }

.art-nav-cta {
  padding: 7px 14px;
  border-radius: 6px;
  background: var(--ob-accent);
  color: #03252A;
  font-size: 12.5px;
  font-weight: 600;
  transition: opacity 150ms;
  display: inline-block;
}
.art-nav-cta:hover { opacity: 0.88; }

/* =========================================================
   SHELL
   ========================================================= */
.shell {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 40px 120px;
}

/* =========================================================
   ARTICLE LAYOUT: two-column (TOC + content)
   ========================================================= */
.article-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 60px;
  padding-top: 56px;
  align-items: start;
}

/* =========================================================
   TOC SIDEBAR
   ========================================================= */
.art-toc {
  position: sticky;
  top: 72px;
  max-height: calc(100vh - 90px);
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.art-toc::-webkit-scrollbar { display: none; }

.art-toc-label {
  font-family: 'Geist Mono', monospace;
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ob-ink-mute);
  margin-bottom: 14px;
  padding-left: 14px;
}

.art-toc-nav {
  border-left: 1px solid var(--ob-line);
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.art-toc-nav a {
  display: block;
  padding: 6px 14px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ob-ink-mute);
  border-left: 2px solid transparent;
  margin-left: -1px;
  border-radius: 0 4px 4px 0;
  transition: color 150ms, border-color 150ms, background 150ms;
  word-break: break-word;
}

.art-toc-nav a:hover {
  color: var(--ob-ink-soft);
  border-left-color: rgba(94, 233, 240, 0.35);
  background: var(--ob-accent-glow);
}

.art-toc-nav a.art-toc-active {
  color: var(--ob-accent);
  font-weight: 600;
  border-left-color: var(--ob-accent);
  background: var(--ob-accent-soft);
}

/* =========================================================
   ARTICLE HERO
   ========================================================= */
.article-hero {
  margin-bottom: 52px;
}

.art-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  color: var(--ob-ink-mute);
  letter-spacing: 0.05em;
}
.art-breadcrumb a { color: var(--ob-ink-mute); transition: color 150ms; }
.art-breadcrumb a:hover { color: var(--ob-accent); }
.art-breadcrumb li:last-child { color: var(--ob-ink-soft); }

.art-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--ob-accent-soft);
  color: var(--ob-accent);
  font-family: 'Geist Mono', monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.article-layout h1 {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
  color: var(--ob-ink);
}

.article-subtitle {
  font-size: 17px;
  line-height: 1.65;
  color: var(--ob-ink-soft);
  margin: 0 0 28px;
  max-width: 64ch;
}

/* Author block */
.author-block {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 18px 0;
  border-top: 1px solid var(--ob-line);
  border-bottom: 1px solid var(--ob-line);
}

.author-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--ob-accent-soft);
  border: 1px solid rgba(94, 233, 240, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ob-accent);
  font-family: 'Geist Mono', monospace;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  letter-spacing: 0.03em;
}

.author-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.author-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ob-ink);
}

.author-title {
  font-size: 12px;
  color: var(--ob-ink-mute);
  font-style: italic;
}

.article-dates {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  color: var(--ob-ink-mute);
  letter-spacing: 0.02em;
}

.date-sep { opacity: 0.4; }

.updated {
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  color: var(--ob-ink-mute);
  margin-top: 6px;
  letter-spacing: 0.02em;
}

/* =========================================================
   ARTICLE BODY
   ========================================================= */
.article-body {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--ob-line);
  padding-top: 4px;
}

/* =========================================================
   PROSE SECTIONS
   ========================================================= */
.prose-section {
  padding: 36px 0;
  border-bottom: 1px solid var(--ob-line);
  scroll-margin-top: 80px;
}

.prose-section:last-of-type { border-bottom: none; }

.prose-section h2 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.25;
  color: var(--ob-ink);
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.prose-section h2::before {
  content: '';
  display: inline-block;
  width: 3px;
  min-height: 1.1em;
  align-self: stretch;
  background: linear-gradient(180deg, var(--ob-accent) 0%, var(--ob-purple) 100%);
  border-radius: 2px;
  flex-shrink: 0;
}

.prose-section p {
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--ob-ink-soft);
  margin: 0 0 16px;
}

.prose-section p:last-child { margin-bottom: 0; }

.prose-section strong { color: var(--ob-ink); font-weight: 600; }
.prose-section em { color: var(--ob-ink-mute); font-style: italic; }

/* Links in prose */
.prose-section a {
  color: var(--ob-accent);
  border-bottom: 1px solid rgba(94, 233, 240, 0.3);
  transition: border-color 150ms, opacity 150ms;
}
.prose-section a:hover {
  border-bottom-color: var(--ob-accent);
  opacity: 0.82;
}

/* ── Inline code ── */
.prose-section code {
  font-family: 'Geist Mono', 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.84em;
  background: rgba(94, 233, 240, 0.07);
  color: var(--ob-accent2);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid rgba(94, 233, 240, 0.14);
}

/* =========================================================
   LIST ITEMS
   ========================================================= */
.prose-section ul {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  display: grid;
  gap: 8px;
}

.prose-section li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.018);
  border: 1px solid var(--ob-line);
  border-radius: 8px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ob-ink-soft);
  transition: border-color 150ms, background 150ms;
}

.prose-section li:hover {
  border-color: rgba(94, 233, 240, 0.16);
  background: var(--ob-accent-glow);
}

.prose-section li::before {
  content: "→";
  color: var(--ob-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
  font-size: 13px;
  line-height: 1.7;
  font-family: 'Geist Mono', monospace;
}

/* ── Term + description list items ── */
.prose-section li .li-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.prose-section li .li-content p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--ob-ink-soft);
}

.item-term {
  color: var(--ob-ink);
  font-weight: 700;
  font-size: 14.5px;
}

/* ── Link items ── */
.prose-section ul li a {
  color: var(--ob-accent);
  font-weight: 600;
  border-bottom: none;
  transition: opacity 150ms;
}
.prose-section ul li a:hover { opacity: 0.78; text-decoration: underline; }

/* =========================================================
   CODE BLOCK IN PROSE LIST ITEMS
   ========================================================= */
.prose-code {
  margin: 4px 0 0;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--ob-line);
  border-left: 3px solid var(--ob-accent);
  border-radius: 6px;
  overflow-x: auto;
  font-family: 'Geist Mono', 'JetBrains Mono', 'Cascadia Code', monospace;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ob-accent);
  white-space: pre;
}

/* =========================================================
   TAKEAWAYS LIST
   ========================================================= */
.takeaway-list { gap: 12px !important; }
.takeaway-list li::before {
  content: "✓" !important;
  color: var(--ob-success) !important;
  font-weight: 800 !important;
  font-size: 13px !important;
}

/* =========================================================
   FAQ SECTION
   ========================================================= */
.faq-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.faq-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--ob-line);
}
.faq-item:last-child { border-bottom: none; }

.faq-item dt {
  font-size: 15px;
  font-weight: 600;
  color: var(--ob-ink);
  margin: 0 0 10px;
  padding-left: 26px;
  position: relative;
  line-height: 1.4;
}

.faq-item dt::before {
  content: "Q";
  position: absolute;
  left: 0; top: 0;
  font-family: 'Geist Mono', monospace;
  font-size: 9.5px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--ob-accent);
  background: var(--ob-accent-soft);
  border: 1px solid rgba(94, 233, 240, 0.25);
  border-radius: 4px;
  padding: 2px 5px;
  line-height: 1.6;
  margin-top: 1px;
}

.faq-item dd {
  margin: 0;
  padding-left: 26px;
  color: var(--ob-ink-soft);
  font-size: 14.5px;
  line-height: 1.8;
}

/* =========================================================
   CTA SECTION
   ========================================================= */
.section-type-cta {
  background: linear-gradient(135deg, rgba(16, 28, 44, 0.7), rgba(12, 22, 36, 0.6)) !important;
  border: 1px solid rgba(94, 233, 240, 0.2) !important;
  border-radius: 10px !important;
  padding: 30px 34px !important;
}

.section-type-cta h2 {
  font-size: 1.2rem !important;
  color: var(--ob-accent) !important;
}

.section-type-cta h2::before { display: none !important; }

.cta-link-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
}

.cta-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ob-accent);
  font-weight: 600;
  font-size: 14px;
  border-bottom: none !important;
  padding: 10px 16px;
  border: 1px solid rgba(94, 233, 240, 0.2);
  border-radius: 6px;
  background: var(--ob-accent-glow);
  transition: background 150ms, border-color 150ms, transform 150ms;
  width: fit-content;
}
.cta-link-arrow:hover {
  background: var(--ob-accent-soft);
  border-color: rgba(94, 233, 240, 0.35);
  transform: translateX(4px);
  opacity: 1 !important;
}

/* =========================================================
   TABLE
   ========================================================= */
.table-wrap {
  border: 1px solid var(--ob-line);
  border-radius: 10px;
  overflow-x: auto;
  margin: 20px 0 8px;
}

.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  min-width: 480px;
}

.table-wrap caption {
  caption-side: bottom;
  padding: 10px 16px;
  font-size: 12px;
  color: var(--ob-ink-mute);
  text-align: left;
  border-top: 1px solid var(--ob-line);
  font-family: 'Geist Mono', monospace;
  letter-spacing: 0.02em;
}

.table-wrap thead th {
  text-align: left;
  padding: 11px 16px;
  font-family: 'Geist Mono', monospace;
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ob-ink-mute);
  background: rgba(255, 255, 255, 0.025);
  border-bottom: 1px solid var(--ob-line);
  white-space: nowrap;
}

.table-wrap thead th.col-highlight,
.table-wrap tbody td.col-highlight {
  background: var(--ob-accent-glow);
  color: var(--ob-accent);
  font-weight: 600;
}

.table-wrap tbody tr {
  border-bottom: 1px solid var(--ob-line);
  transition: background 150ms;
}
.table-wrap tbody tr:last-child { border-bottom: none; }
.table-wrap tbody tr:hover { background: rgba(255, 255, 255, 0.02); }
.table-wrap tbody td {
  padding: 12px 16px;
  color: var(--ob-ink-soft);
  vertical-align: middle;
  line-height: 1.55;
}

/* =========================================================
   PRODUCT CTA
   ========================================================= */
.product-cta {
  margin-top: 56px;
  padding: 36px;
  background: var(--ob-panel);
  border: 1px solid var(--ob-line-strong);
  border-top: 2px solid var(--ob-accent);
  border-radius: 12px;
  display: grid;
  gap: 14px;
  position: relative;
  overflow: hidden;
}

.product-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 50%, rgba(94, 233, 240, 0.05) 0%, transparent 60%);
  pointer-events: none;
}

.product-cta-eyebrow {
  font-family: 'Geist Mono', monospace;
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ob-accent);
  position: relative;
}

.product-cta h3 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ob-ink);
  letter-spacing: -0.015em;
  position: relative;
}

.product-cta p {
  margin: 0;
  color: var(--ob-ink-soft);
  font-size: 14.5px;
  line-height: 1.68;
  position: relative;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--ob-accent);
  color: #03252A;
  font-size: 13px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 6px;
  width: fit-content;
  transition: opacity 150ms;
  position: relative;
}
.cta-btn:hover { opacity: 0.88; }

/* =========================================================
   ARTICLE BACK LINK
   ========================================================= */
.article-back {
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid var(--ob-line);
}

.back-to-blog {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ob-ink-mute);
  border: 1px solid var(--ob-line);
  border-radius: 6px;
  transition: color 150ms, border-color 150ms, background 150ms;
}
.back-to-blog:hover {
  color: var(--ob-accent);
  border-color: rgba(94, 233, 240, 0.3);
  background: var(--ob-accent-glow);
}

/* =========================================================
   PLAN BADGES (preserved from prior version)
   ========================================================= */
.plan-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-family: 'Geist Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid transparent;
}
.plan-badge--recon    { background: rgba(148,163,184,0.1); color: #94a3b8; border-color: rgba(148,163,184,0.2); }
.plan-badge--sentinel { background: var(--ob-accent-soft); color: var(--ob-accent); border-color: rgba(94,233,240,0.22); }
.plan-badge--fortress { background: rgba(79,209,197,0.1); color: var(--ob-accent2); border-color: rgba(79,209,197,0.22); }
.plan-badge--citadel  {
  background: linear-gradient(135deg, rgba(94,233,240,0.15), rgba(79,209,197,0.1));
  color: var(--ob-accent);
  border-color: rgba(94,233,240,0.3);
}

/* =========================================================
   BACK TO TOP
   ========================================================= */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(94, 233, 240, 0.08);
  border: 1px solid rgba(94, 233, 240, 0.2);
  color: var(--ob-accent);
  cursor: pointer;
  text-decoration: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 250ms, transform 250ms, background 150ms, box-shadow 150ms;
  z-index: 50;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
#back-to-top svg { pointer-events: none; }
#back-to-top.visible { opacity: 1; transform: translateY(0); }
#back-to-top:hover {
  background: rgba(94, 233, 240, 0.16);
  border-color: var(--ob-accent);
  box-shadow: 0 0 22px rgba(94, 233, 240, 0.2);
  transform: translateY(-3px);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1000px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 0;
    padding-top: 44px;
  }
  .art-toc { display: none; }
  .shell { padding: 0 24px 100px; }
}

@media (max-width: 700px) {
  .art-nav { padding: 0 20px; }
  .shell { padding: 0 18px 80px; }
  .article-layout { padding-top: 32px; }
  .article-layout h1 { font-size: 1.8rem; }
  .prose-section { padding: 26px 0; }
  .prose-section h2 { font-size: 1.15rem; }
  .product-cta { padding: 26px; }
  #back-to-top { bottom: 20px; right: 20px; }
}