:root {
  --bg-paper: #F8F9F7;
  --bg-ledger: #EBEEF0;
  --bg-surface: #FFFFFF;
  --ink-primary: #161B1E;
  --ink-muted: #475569;
  --signal-alert: #C2410C;
  --signal-alert-soft: #FFF7ED;
  --signal-steel: #334155;
  --signal-steel-soft: #F1F5F9;
  --signal-warn: #B45309;
  --signal-warn-soft: #FEFCE8;
  --border-hairline: #CBD5E1;
  --border-strong: #161B1E;

  --font-display: "Noto Serif", Georgia, serif;
  --font-body: "Assistant", system-ui, -apple-system, sans-serif;
  --font-mono: "Sono", ui-monospace, SFMono-Regular, monospace;
  --font-arabic: "Noto Naskh Arabic", "Assistant", serif;

  --editorial-width: 76rem;
  --content-width: 49rem;
  --rail-width: 19rem;
  --grid-gap: 3rem;
  --container-pad: 1.5rem;
}

@media (min-width: 768px) {
  :root {
    --container-pad: 2.25rem;
  }
}

@media (min-width: 1280px) {
  :root {
    --container-pad: 3rem;
  }
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg-paper);
  color: var(--ink-primary);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

[dir="rtl"] body {
  font-family: var(--font-arabic);
  font-size: 1.125rem;
  line-height: 1.85;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  color: var(--ink-primary);
  line-height: 1.22;
  margin-block: 0 0.75rem;
  letter-spacing: -0.015em;
}

[dir="rtl"] h1,
[dir="rtl"] h2,
[dir="rtl"] h3,
[dir="rtl"] h4 {
  font-family: var(--font-arabic);
  letter-spacing: 0;
  line-height: 1.38;
}

h1 {
  font-size: clamp(1.95rem, 3.6vw, 2.75rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.4rem, 2.2vw, 1.85rem);
  font-weight: 700;
  margin-top: 2.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-hairline);
}

h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 1.5rem;
}

p {
  margin-block: 0 1rem;
}

a {
  color: var(--signal-steel);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--signal-alert);
}

.skip-link {
  position: absolute;
  inset-inline-start: -9999px;
  top: 0;
  background: var(--ink-primary);
  color: var(--bg-paper);
  padding: 0.6rem 1rem;
  font-weight: 600;
  z-index: 100;
}

.skip-link:focus {
  inset-inline-start: 1rem;
  top: 0.75rem;
}

.op-container {
  width: 100%;
  max-width: var(--editorial-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* Top Surveillance Dispatch Wire */
.op-wire-strip {
  background-color: var(--ink-primary);
  color: var(--bg-paper);
  border-bottom: 2px solid var(--signal-alert);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.4;
}

[dir="rtl"] .op-wire-strip {
  font-family: var(--font-arabic);
  font-size: 0.85rem;
}

.op-wire-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-block: 0.55rem;
}

.op-wire-items {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}

.op-wire-dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background-color: var(--signal-alert);
  margin-inline-end: 0.45rem;
  animation: op-pulse 2.4s ease-in-out infinite;
}

@keyframes op-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

@media (prefers-reduced-motion: reduce) {
  .op-wire-dot {
    animation: none;
  }
}

.op-wire-tag {
  color: #E2E8F0;
}

/* Header & Bilingual Navigation */
.op-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-hairline);
}

.op-header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
}

.op-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--ink-primary);
}

.op-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.35rem;
  height: 2.4rem;
  padding-inline: 0.55rem;
  background-color: var(--ink-primary);
  color: var(--bg-paper);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.82rem;
  border-bottom: 3px solid var(--signal-alert);
}

.op-brand-title {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.15;
}

[dir="rtl"] .op-brand-title {
  font-family: var(--font-arabic);
}

.op-brand-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
}

[dir="rtl"] .op-brand-sub {
  font-family: var(--font-arabic);
  font-size: 0.82rem;
}

.op-nav-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.op-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.15rem;
}

.op-nav a {
  text-decoration: none;
  color: var(--ink-primary);
  font-weight: 600;
  font-size: 0.95rem;
  padding-block: 0.35rem;
  border-bottom: 2px solid transparent;
}

.op-nav a:hover,
.op-nav a.is-current {
  color: var(--signal-alert);
  border-bottom-color: var(--signal-alert);
}

.langbar {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background-color: var(--bg-ledger);
  padding: 0.2rem;
  border: 1px solid var(--border-hairline);
}

.langbar a {
  display: inline-block;
  padding: 0.3rem 0.65rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink-primary);
}

.langbar a.is-active {
  background-color: var(--ink-primary);
  color: var(--bg-paper);
}

/* Dispatch Hero (Dual-Column EN/AR Situation Framing) */
.op-dispatch-hero {
  background-color: var(--bg-ledger);
  border-bottom: 2px solid var(--border-strong);
  padding-block: 2.25rem;
}

.op-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

@media (max-width: 960px) {
  .op-hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.op-kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--signal-alert);
  margin-bottom: 0.5rem;
}

[dir="rtl"] .op-kicker {
  font-family: var(--font-arabic);
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.95rem;
}

.op-dek {
  font-size: 1.15rem;
  color: var(--ink-muted);
  max-width: 44rem;
  margin-bottom: 1.15rem;
}

.op-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.op-btn-primary {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.55rem 1.15rem;
  background-color: var(--signal-alert);
  color: #FFFFFF;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--signal-alert);
}

.op-btn-primary:hover {
  background-color: #9A3412;
  color: #FFFFFF;
}

.op-btn-secondary {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.55rem 1.15rem;
  background-color: var(--bg-surface);
  color: var(--ink-primary);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--ink-primary);
}

.op-btn-secondary:hover {
  background-color: var(--ink-primary);
  color: var(--bg-paper);
}

/* Bilingual Interlink Card + Documentary Plate */
.op-hero-aside {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.op-bilingual-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-inline-start: 4px solid var(--signal-steel);
  padding: 1rem 1.15rem;
}

.op-bilingual-card-head {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--signal-steel);
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.op-plate-figure {
  margin: 0;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  padding: 0.5rem;
}

.op-plate-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.op-plate-caption {
  font-size: 0.85rem;
  color: var(--ink-muted);
  padding-top: 0.5rem;
  line-height: 1.45;
}

/* Main Editorial Spec Grid */
.op-main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--rail-width);
  gap: var(--grid-gap);
  padding-block: 2.25rem 3.5rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .op-main-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
  }
}

.op-prose {
  min-width: 0;
  max-width: var(--content-width);
}

.op-rail {
  min-width: 0;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-top: 3px solid var(--signal-steel);
  padding: 1.15rem;
}

@media (min-width: 1025px) {
  .op-rail {
    position: sticky;
    top: 1.25rem;
  }
}

.op-rail-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--signal-steel);
  margin-bottom: 0.75rem;
}

[dir="rtl"] .op-rail-title {
  font-family: var(--font-arabic);
  text-transform: none;
  font-size: 0.95rem;
}

.op-rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.op-rail-list a {
  display: block;
  text-decoration: none;
  font-size: 0.94rem;
  color: var(--ink-primary);
  padding-block: 0.2rem;
  border-bottom: 1px solid var(--bg-ledger);
}

.op-rail-list a:hover {
  color: var(--signal-alert);
}

/* Link-Free GEO Answer Capsule */
.answer-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-inline-start: 4px solid var(--signal-alert);
  padding: 1.1rem 1.25rem;
  margin-block: 1.25rem 1.5rem;
}

.answer-box-label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--signal-alert);
  margin-bottom: 0.35rem;
}

[dir="rtl"] .answer-box-label {
  font-family: var(--font-arabic);
  font-size: 0.9rem;
}

.answer-source-line {
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin-top: -0.75rem;
  margin-bottom: 1.5rem;
}

/* Interactive IHR Annex 2 Four-Dimensional Evaluator */
.op-annex2-console {
  background-color: var(--bg-surface);
  border: 2px solid var(--ink-primary);
  padding: 1.35rem;
  margin-block: 1.5rem 2rem;
}

.op-console-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-hairline);
  padding-bottom: 0.75rem;
  margin-bottom: 1.15rem;
}

.op-console-heading {
  font-size: 1.3rem;
  margin-top: 0.2rem;
  padding-top: 0;
  border-top: none;
}

.op-console-code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--signal-steel);
}

.op-mode-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.15rem;
}

.op-pill-btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.45rem 0.9rem;
  background-color: var(--bg-paper);
  color: var(--ink-primary);
  border: 1px solid var(--border-hairline);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
}

.op-pill-btn:hover {
  border-color: var(--ink-primary);
}

.op-pill-btn.is-selected {
  background-color: var(--ink-primary);
  color: var(--bg-paper);
  border-color: var(--ink-primary);
}

.op-criterion-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin-bottom: 1.15rem;
}

@media (max-width: 720px) {
  .op-criterion-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.op-criterion-group {
  background-color: var(--bg-paper);
  border: 1px solid var(--border-hairline);
  padding: 0.9rem;
}

.op-criterion-title {
  font-weight: 700;
  font-size: 0.98rem;
  margin-bottom: 0.3rem;
}

.op-criterion-desc {
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin-bottom: 0.7rem;
}

.op-toggle-pair {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.op-step-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 5.5rem;
  padding: 0.4rem 0.85rem;
  background-color: var(--bg-surface);
  color: var(--ink-primary);
  border: 1px solid var(--border-hairline);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.op-step-btn.is-yes {
  background-color: var(--signal-alert);
  color: #FFFFFF;
  border-color: var(--signal-alert);
}

.op-step-btn.is-no {
  background-color: var(--signal-steel);
  color: #FFFFFF;
  border-color: var(--signal-steel);
}

.op-verdict-panel {
  border: 1px solid var(--border-hairline);
  border-inline-start: 5px solid var(--signal-steel);
  background-color: var(--signal-steel-soft);
  padding: 1rem 1.15rem;
}

.op-verdict-panel.is-notify {
  border-inline-start-color: var(--signal-alert);
  background-color: var(--signal-alert-soft);
}

.op-verdict-panel.is-verify {
  border-inline-start-color: var(--signal-warn);
  background-color: var(--signal-warn-soft);
}

.op-verdict-status {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

[dir="rtl"] .op-verdict-status {
  font-family: var(--font-arabic);
  font-size: 0.95rem;
}

.op-verdict-headline {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

[dir="rtl"] .op-verdict-headline {
  font-family: var(--font-arabic);
}

.op-verdict-meta {
  font-size: 0.92rem;
  color: var(--ink-muted);
  margin: 0;
}

/* Booktabs Three-Line Quantitative Tables */
.table-responsive-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-block: 1.25rem 1.75rem;
}

.op-booktabs {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background-color: var(--bg-surface);
}

.op-booktabs thead th {
  text-align: start;
  font-weight: 700;
  padding: 0.7rem 0.8rem;
  border-top: 2px solid var(--ink-primary);
  border-bottom: 1.5px solid var(--ink-primary);
  background-color: var(--bg-ledger);
  vertical-align: bottom;
}

.op-booktabs tbody td {
  text-align: start;
  padding: 0.68rem 0.8rem;
  border-bottom: 1px solid var(--border-hairline);
  vertical-align: top;
}

.op-booktabs tbody tr:last-child td {
  border-bottom: 2px solid var(--ink-primary);
}

.op-badge:not(td):not(th) {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  background-color: var(--signal-steel-soft);
  color: var(--signal-steel);
  border: 1px solid var(--border-hairline);
}

.op-badge-alert:not(td):not(th) {
  background-color: var(--signal-alert-soft);
  color: var(--signal-alert);
  border-color: var(--signal-alert);
}

.op-mono {
  font-family: var(--font-mono);
  font-size: 0.88em;
}

.op-ltr-code {
  direction: ltr;
  unicode-bidi: isolate;
  font-family: var(--font-mono);
  font-size: 0.88em;
}

/* Verification Funnel Inline SVG */
.op-funnel-figure {
  margin: 1.5rem 0 2rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  padding: 1rem;
}

.op-funnel-svg {
  display: block;
  width: 100%;
  height: auto;
}

.op-svg-bg {
  fill: var(--bg-paper);
}

.op-svg-card {
  fill: var(--bg-surface);
  stroke: var(--signal-steel);
  stroke-width: 1.5;
}

.op-svg-card-alert {
  fill: var(--signal-alert-soft);
  stroke: var(--signal-alert);
  stroke-width: 2;
}

.op-svg-title {
  fill: var(--ink-primary);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
}

.op-svg-label {
  fill: var(--ink-muted);
  font-family: var(--font-body);
  font-size: 12.5px;
}

.op-svg-mono {
  fill: var(--signal-alert);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}

[dir="rtl"] .op-svg-title,
[dir="rtl"] .op-svg-label,
[dir="rtl"] .op-svg-mono {
  font-family: var(--font-arabic);
}

.op-svg-arrow {
  stroke: var(--signal-steel);
  stroke-width: 2;
  fill: none;
}

/* Timeline Stepper (EWARN Verification SOP) */
.op-stepper-list {
  list-style: none;
  margin: 1.25rem 0 2rem;
  padding: 0;
  border-inline-start: 3px solid var(--signal-steel);
  padding-inline-start: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.op-stepper-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  padding: 1rem 1.15rem;
}

.op-stepper-window {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--signal-alert);
  margin-bottom: 0.25rem;
}

[dir="rtl"] .op-stepper-window {
  font-family: var(--font-arabic);
  font-size: 0.92rem;
}

/* Directory Filter Bar */
.op-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.15rem;
}

.op-hidden-row {
  display: none;
}

/* FAQ & Historical Disclosure */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-block: 1.25rem 2rem;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  padding: 1rem 1.15rem;
}

.faq-q {
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.45rem;
}

[dir="rtl"] .faq-q {
  font-family: var(--font-arabic);
}

.faq-a p {
  margin-bottom: 0;
}

.small.faq-src {
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin-top: 0.5rem;
  margin-bottom: 0;
}

.ref-disclosure {
  background-color: var(--bg-ledger);
  border: 1px solid var(--border-hairline);
  padding: 0.85rem 1.1rem;
  margin-top: 2rem;
}

.ref-disclosure summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--ink-primary);
}

.ref-disclosure-body {
  padding-top: 0.75rem;
  font-size: 0.94rem;
}

.op-disclosure-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-inline-start: 4px solid var(--signal-alert);
  padding: 1.25rem;
  margin-block: 1.5rem;
}

.op-disclosure-box h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

/* Clean Three-Column Institutional Footer */
.op-footer {
  background-color: var(--bg-ledger);
  border-top: 2px solid var(--ink-primary);
  padding-block: 2.25rem;
  font-size: 0.92rem;
}

.op-footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 820px) {
  .op-footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
  }
}

.op-footer-heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

[dir="rtl"] .op-footer-heading {
  font-family: var(--font-arabic);
}

.op-footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.op-footer-bottom {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-hairline);
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.op-not-found {
  max-width: 44rem;
  margin-inline: auto;
  padding-block: 3.5rem;
}