/* ============================================================
   ARLINGTON ALPHA | Brand CSS Architecture v2026.5
   Design Persona: "The Swiss Lab" — Precision, Minimal, Data-Driven
   SOP: ARLINGTON_ALPHA_YMYL_SHIELD_v2026.5
   Prefix: .aa- | All selectors namespaced to prevent conflicts

   Typography:
     Headlines:       Inter 700–900 (geometric, authoritative)
     Technical/Data:  Roboto Mono (signals precision, "The Protocol")

   Palette:
     Base:   #121212 (Deep Slate)
     Text:   #FFFFFF (High-Contrast White)
     Accent: #CCFF00 (Neon Lime) — ALPHA STATE ONLY
              Used exclusively for: active states, data points,
              optimized metric values, CTA focus, Alpha State badges.

   Shadows: NONE. Sharp 1px borders + neon outer glow on focus only.
   ============================================================ */


/* === DESIGN TOKENS =========================================== */
:root {
  /* Surface Stack */
  --aa-base:        #121212;
  --aa-surface:     #1A1A1A;
  --aa-surface-alt: #222222;
  --aa-surface-hi:  #2A2A2A;

  /* Accent — Alpha State Only (#CCFF00) */
  --aa-lime:        #CCFF00;
  --aa-lime-dim:    rgba(204, 255, 0, 0.06);
  --aa-lime-mid:    rgba(204, 255, 0, 0.14);
  --aa-lime-glow:   rgba(204, 255, 0, 0.25);

  /* Text */
  --aa-text-primary:   #FFFFFF;
  --aa-text-secondary: rgba(255, 255, 255, 0.60);
  --aa-text-muted:     rgba(255, 255, 255, 0.30);

  /* Borders — sharp, no decorative shadows */
  --aa-border:        rgba(255, 255, 255, 0.08);
  --aa-border-strong: rgba(255, 255, 255, 0.16);
  --aa-border-subtle: rgba(255, 255, 255, 0.04);
  --aa-border-lime:   rgba(204, 255, 0, 0.35);

  /* Glass (NODE_02) */
  --aa-glass-bg:     rgba(18, 18, 18, 0.75);
  --aa-glass-border: rgba(255, 255, 255, 0.10);
  --aa-glass-blur:   blur(12px);

  /* Typography */
  --aa-font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --aa-font-mono: 'Roboto Mono', 'Courier New', monospace;

  /* Spacing Scale */
  --aa-sp-xs:  0.5rem;
  --aa-sp-sm:  1rem;
  --aa-sp-md:  1.5rem;
  --aa-sp-lg:  2.5rem;
  --aa-sp-xl:  4rem;
  --aa-sp-2xl: 6rem;

  /* Radius */
  --aa-r-sm: 3px;
  --aa-r-md: 6px;
  --aa-r-lg: 10px;
  --aa-r-xl: 14px;

  /* Neon Glow — active/focus states ONLY */
  --aa-glow:        0 0 0 1px var(--aa-lime), 0 0 18px var(--aa-lime-glow);
  --aa-glow-subtle: 0 0 12px rgba(204, 255, 0, 0.10);

  /* Motion */
  --aa-ease:       cubic-bezier(0.4, 0, 0.2, 1);
  --aa-transition: 0.18s var(--aa-ease);
}


/* === RESET & BASE ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  background-color: var(--aa-base);
  color: var(--aa-text-primary);
  font-family: var(--aa-font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video { max-width: 100%; display: block; }
a { color: var(--aa-lime); text-decoration: none; }
a:hover { text-decoration: underline; }


/* === LAYOUT ================================================== */
.aa-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 var(--aa-sp-md);
}

.aa-article {
  padding: var(--aa-sp-xl) 0 var(--aa-sp-2xl);
}

.aa-article__header {
  margin-bottom: var(--aa-sp-lg);
  padding-bottom: var(--aa-sp-md);
  border-bottom: 1px solid var(--aa-border);
}

.aa-article__meta {
  display: flex;
  align-items: center;
  gap: var(--aa-sp-sm);
  flex-wrap: wrap;
  margin-bottom: var(--aa-sp-sm);
}

.aa-meta-tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  background: transparent;
  border: 1px solid var(--aa-border-strong);
  border-radius: 2px;
  font-family: var(--aa-font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--aa-text-secondary);
  text-transform: uppercase;
}

.aa-meta-date {
  font-family: var(--aa-font-mono);
  font-size: 0.72rem;
  color: var(--aa-text-muted);
}

.aa-article__eyebrow {
  font-family: var(--aa-font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--aa-lime);
  text-transform: uppercase;
  margin-bottom: var(--aa-sp-xs);
}


/* === TYPOGRAPHY ============================================== */
/* Headlines: Inter 700–900 */
.aa-article h1 {
  font-family: var(--aa-font-sans);
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--aa-text-primary);
  margin-bottom: var(--aa-sp-sm);
}

.aa-article h2 {
  font-family: var(--aa-font-sans);
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--aa-text-primary);
  margin-top: var(--aa-sp-lg);
  margin-bottom: var(--aa-sp-sm);
}

.aa-article h3 {
  font-family: var(--aa-font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--aa-lime);
  margin-top: var(--aa-sp-md);
  margin-bottom: var(--aa-sp-xs);
}

.aa-article h4 {
  font-family: var(--aa-font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--aa-text-muted);
  margin-top: var(--aa-sp-sm);
  margin-bottom: var(--aa-sp-xs);
}

/* Body copy: Roboto Mono for technical data; Inter for prose */
.aa-article p {
  font-family: var(--aa-font-sans);
  color: var(--aa-text-secondary);
  max-width: 72ch;
  margin-bottom: var(--aa-sp-sm);
  font-size: 0.975rem;
}

/* NODE_04: ≤3 sentences per paragraph — enforced in HTML */
.aa-article p + p { margin-top: 0; }

.aa-article ul, .aa-article ol {
  padding-left: var(--aa-sp-lg);
  margin-bottom: var(--aa-sp-sm);
}

.aa-article li {
  font-size: 0.95rem;
  color: var(--aa-text-secondary);
  margin-bottom: 0.4rem;
}

/* ── Body Lists: .aa-body-list ─────────────────────────────── */
/* Swiss Lab-styled content lists inside article body sections  */
.aa-body-list {
  list-style: none;
  padding-left: var(--aa-sp-md);
  margin: 0.75rem 0 1.75rem;
  border-left: 2px solid rgba(204, 255, 0, 0.28);
}

.aa-body-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.7rem;
  font-size: 0.93rem;
  color: var(--aa-text-secondary);
  max-width: 72ch;
  line-height: 1.65;
}

.aa-body-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  top: 0.12em;
  color: var(--aa-lime);
  font-size: 0.68rem;
}

.aa-body-list li strong {
  color: var(--aa-text-primary);
  font-weight: 600;
}

ol.aa-body-list {
  counter-reset: aa-ol-counter;
}

ol.aa-body-list li {
  counter-increment: aa-ol-counter;
  padding-left: 2.25rem;
}

ol.aa-body-list li::before {
  content: counter(aa-ol-counter, decimal-leading-zero) '.';
  color: var(--aa-lime);
  font-family: var(--aa-font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  top: 0.18em;
  min-width: 1.75rem;
}

/* Utility: force Roboto Mono for data/metric inline text */
.aa-mono { font-family: var(--aa-font-mono); }

.aa-text-lime   { color: var(--aa-lime); }
.aa-text-muted  { color: var(--aa-text-muted); }
.aa-text-white  { color: var(--aa-text-primary); }


/* === EXECUTIVE BRIEFING (NODE_03 / NODE_04) ================== */
/* Fiduciary Impact focus per NODE_04 */
.aa-exec-briefing {
  background: var(--aa-surface);
  border: 1px solid var(--aa-border-strong);
  border-left: 2px solid var(--aa-lime);
  border-radius: var(--aa-r-lg);
  padding: var(--aa-sp-lg);
  margin-bottom: var(--aa-sp-lg);
  position: relative;
  overflow: hidden;
}

.aa-exec-briefing::before {
  content: 'EXECUTIVE BRIEFING';
  display: block;
  font-family: var(--aa-font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  color: var(--aa-lime);
  margin-bottom: var(--aa-sp-md);
}

.aa-briefing-grid {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: var(--aa-sp-md);
  align-items: start;
}

.aa-briefing-divider {
  background: var(--aa-border);
  align-self: stretch;
}

.aa-briefing-label {
  display: block;
  font-family: var(--aa-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--aa-text-muted);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.aa-bottom-line p {
  font-size: 0.9rem;
  color: var(--aa-text-secondary);
  max-width: none;
  margin: 0;
  line-height: 1.6;
}

.aa-kpm-value {
  display: block;
  font-family: var(--aa-font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--aa-lime);
  line-height: 1;
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}

.aa-kpm-label {
  font-family: var(--aa-font-sans);
  font-size: 0.88rem;
  color: var(--aa-text-secondary);
  margin-bottom: 0.25rem;
}

.aa-kpm-context {
  font-family: var(--aa-font-mono);
  font-size: 0.68rem;
  color: var(--aa-text-muted);
}

@media (max-width: 600px) {
  .aa-briefing-grid {
    grid-template-columns: 1fr;
  }
  .aa-briefing-divider {
    height: 1px;
    width: 100%;
  }
}


/* === NARRATIVE INTRO (NODE_03) =============================== */
.aa-narrative {
  position: relative;
  padding: var(--aa-sp-sm) 0 var(--aa-sp-sm) var(--aa-sp-lg);
  margin-bottom: var(--aa-sp-lg);
}

.aa-narrative::before {
  content: '';
  position: absolute;
  left: 0; top: 0.3rem;
  width: 2px;
  height: calc(100% - 0.6rem);
  background: linear-gradient(180deg, var(--aa-lime) 0%, transparent 100%);
}

.aa-narrative p {
  font-size: 1.05rem;
  color: var(--aa-text-secondary);
  font-style: italic;
  line-height: 1.7;
}


/* === PROTOCOL GLASS (NODE_02) — .aa-protocol-glass =========== */
/* Primary glassmorphism component per N02 spec */
.aa-protocol-glass {
  background: var(--aa-glass-bg);
  backdrop-filter: var(--aa-glass-blur);
  -webkit-backdrop-filter: var(--aa-glass-blur);
  border: 1px solid var(--aa-glass-border);
  border-radius: var(--aa-r-xl);
  padding: var(--aa-sp-lg);
}

.aa-protocol-glass--sm {
  padding: var(--aa-sp-md);
  border-radius: var(--aa-r-lg);
}

/* Alias for backward compatibility */
.aa-glass-card {
  background: var(--aa-glass-bg);
  backdrop-filter: var(--aa-glass-blur);
  -webkit-backdrop-filter: var(--aa-glass-blur);
  border: 1px solid var(--aa-glass-border);
  border-radius: var(--aa-r-xl);
  padding: var(--aa-sp-lg);
}


/* === PERFORMANCE MATRIX — .alpha-state-matrix ================ */
/* NODE_07: KPI Translation Engine. Raw biometrics mapped to
   Business Outcomes. Replaces clinical health framing. */
.aa-matrix-wrap,
.alpha-state-matrix-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--aa-r-lg);
  border: 1px solid var(--aa-border-strong);
  margin: var(--aa-sp-lg) 0;
}

.aa-matrix-header {
  display: flex;
  align-items: center;
  gap: var(--aa-sp-sm);
  padding: var(--aa-sp-sm) var(--aa-sp-md);
  background: var(--aa-surface-alt);
  border-bottom: 1px solid var(--aa-border);
}

.aa-matrix-title {
  font-family: var(--aa-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--aa-lime);
  text-transform: uppercase;
}

.aa-matrix-badge {
  margin-left: auto;
  display: inline-block;
  padding: 0.12rem 0.55rem;
  background: transparent;
  border: 1px solid var(--aa-border-lime);
  border-radius: 2px;
  font-family: var(--aa-font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--aa-lime);
  text-transform: uppercase;
}

/* Table: .aa-matrix or .alpha-state-matrix */
.aa-matrix,
.alpha-state-matrix {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--aa-font-mono);
  font-size: 0.82rem;
  background: var(--aa-surface);
}

.aa-matrix thead th,
.alpha-state-matrix thead th {
  text-align: left;
  padding: 0.75rem var(--aa-sp-sm);
  font-family: var(--aa-font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  color: var(--aa-text-muted);
  text-transform: uppercase;
  border-bottom: 1px solid var(--aa-border-strong);
  white-space: nowrap;
  background: var(--aa-surface-alt);
}

.aa-matrix thead th:first-child,
.alpha-state-matrix thead th:first-child { padding-left: var(--aa-sp-md); }

.aa-matrix thead th:last-child,
.alpha-state-matrix thead th:last-child  { padding-right: var(--aa-sp-md); }

.aa-matrix tbody tr,
.alpha-state-matrix tbody tr {
  border-bottom: 1px solid var(--aa-border-subtle);
  transition: background var(--aa-transition);
}

.aa-matrix tbody tr:last-child,
.alpha-state-matrix tbody tr:last-child { border-bottom: none; }

.aa-matrix tbody tr:hover,
.alpha-state-matrix tbody tr:hover { background: rgba(255, 255, 255, 0.02); }

/* Metric precision cells — .metric-precision-cell */
.aa-matrix tbody td,
.alpha-state-matrix tbody td,
.metric-precision-cell {
  padding: 0.9rem var(--aa-sp-sm);
  color: var(--aa-text-secondary);
  vertical-align: middle;
  font-family: var(--aa-font-mono);
}

.aa-matrix tbody td:first-child,
.alpha-state-matrix tbody td:first-child {
  padding-left: var(--aa-sp-md);
  color: var(--aa-text-primary);
  font-family: var(--aa-font-sans);
  font-weight: 600;
  font-size: 0.88rem;
}

.aa-matrix tbody td:last-child,
.alpha-state-matrix tbody td:last-child { padding-right: var(--aa-sp-md); }

/* Metric value variants */
.aa-metric-baseline   { color: var(--aa-text-muted); }
.aa-metric-optimized  { color: var(--aa-lime); font-weight: 700; }  /* ALPHA STATE */
.aa-metric-delta      { color: var(--aa-lime); font-size: 0.8rem; }
.aa-metric-kpi        { color: var(--aa-text-primary); font-size: 0.78rem; }
.aa-metric-consequence { color: var(--aa-text-secondary); font-size: 0.78rem; font-family: var(--aa-font-sans); }

/* State badges */
.aa-state-badge {
  display: inline-block;
  padding: 0.18rem 0.6rem;
  border-radius: 2px;
  font-size: 0.64rem;
  font-family: var(--aa-font-mono);
  font-weight: 400;
  white-space: nowrap;
  border: 1px solid transparent;
}

.aa-state-badge--baseline {
  background: transparent;
  border-color: var(--aa-border-strong);
  color: var(--aa-text-muted);
}

/* Alpha State — neon lime only here */
.aa-state-badge--alpha {
  background: var(--aa-lime-dim);
  border-color: var(--aa-border-lime);
  color: var(--aa-lime);
}


/* === STAT CALLOUT ============================================ */
.aa-stat-callout {
  background: transparent;
  border-left: 2px solid var(--aa-lime);
  padding: var(--aa-sp-sm) var(--aa-sp-md);
  margin: var(--aa-sp-md) 0;
}

.aa-stat-callout p {
  font-size: 0.9rem;
  color: var(--aa-text-secondary);
  margin: 0;
  max-width: none;
  font-family: var(--aa-font-sans);
}

.aa-stat-callout strong {
  color: var(--aa-lime);
  font-family: var(--aa-font-mono);
}

.aa-stat-callout cite {
  display: block;
  font-size: 0.7rem;
  color: var(--aa-text-muted);
  font-style: normal;
  margin-top: 0.4rem;
  font-family: var(--aa-font-mono);
}

/* Key Fact / Quotable Data pill */
.aa-fact-pill {
  display: inline-block;
  padding: 0.15rem 0.65rem;
  background: transparent;
  border: 1px solid var(--aa-border-lime);
  border-radius: 2px;
  font-family: var(--aa-font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  color: var(--aa-lime);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.aa-data-callout {
  background: var(--aa-lime-dim);
  border: 1px solid rgba(204, 255, 0, 0.10);
  border-radius: var(--aa-r-md);
  padding: var(--aa-sp-sm) var(--aa-sp-md);
  margin: var(--aa-sp-md) 0;
}

.aa-data-callout p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--aa-text-secondary);
  max-width: none;
  font-family: var(--aa-font-sans);
}


/* === EXPERT QUOTE ============================================ */
.aa-expert-quote {
  position: relative;
  margin: var(--aa-sp-lg) 0;
  padding: var(--aa-sp-md) var(--aa-sp-md) var(--aa-sp-md) calc(var(--aa-sp-lg) + 0.5rem);
  background: var(--aa-surface);
  border-radius: var(--aa-r-md);
  border: 1px solid var(--aa-border);
}

.aa-expert-quote::before {
  content: '\201C';
  position: absolute;
  left: var(--aa-sp-sm);
  top: 0;
  font-size: 3.5rem;
  line-height: 1.1;
  color: var(--aa-lime);
  font-family: Georgia, serif;
  opacity: 0.6;
}

.aa-expert-quote p {
  font-size: 0.975rem;
  color: var(--aa-text-secondary);
  font-style: italic;
  margin: 0 0 var(--aa-sp-sm);
  max-width: none;
  line-height: 1.65;
  font-family: var(--aa-font-sans);
}

.aa-expert-quote footer {
  font-size: 0.72rem;
  color: var(--aa-text-muted);
  font-family: var(--aa-font-mono);
}

.aa-expert-quote footer strong {
  color: var(--aa-text-primary);
  display: block;
  margin-bottom: 0.15rem;
}


/* === CASE STUDY BLOCK ======================================== */
.aa-case-study {
  border: 1px solid var(--aa-border-strong);
  border-radius: var(--aa-r-xl);
  overflow: hidden;
  margin: var(--aa-sp-lg) 0;
}

.aa-case-study__header {
  background: var(--aa-surface-alt);
  padding: var(--aa-sp-sm) var(--aa-sp-md);
  display: flex;
  align-items: center;
  gap: var(--aa-sp-sm);
  border-bottom: 1px solid var(--aa-border);
  flex-wrap: wrap;
}

.aa-case-study__label {
  font-family: var(--aa-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--aa-lime);
  text-transform: uppercase;
}

.aa-case-study__title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--aa-text-primary);
  font-family: var(--aa-font-sans);
}

.aa-case-study__id {
  font-family: var(--aa-font-mono);
  font-size: 0.66rem;
  color: var(--aa-text-muted);
  margin-left: auto;
}

.aa-case-study__body { padding: var(--aa-sp-md) var(--aa-sp-md) var(--aa-sp-lg); }

.aa-case-study__body p {
  font-size: 0.9rem;
  color: var(--aa-text-secondary);
  margin-bottom: var(--aa-sp-sm);
  max-width: none;
  font-family: var(--aa-font-sans);
}

.aa-case-study__metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: var(--aa-sp-sm);
  margin-top: var(--aa-sp-md);
}

.aa-case-metric {
  background: var(--aa-surface-hi);
  border: 1px solid var(--aa-border);
  border-radius: var(--aa-r-md);
  padding: var(--aa-sp-sm);
  text-align: center;
}

/* Alpha State data — neon lime */
.aa-case-metric__value {
  display: block;
  font-family: var(--aa-font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--aa-lime);
  line-height: 1;
}

.aa-case-metric__label {
  display: block;
  font-family: var(--aa-font-mono);
  font-size: 0.66rem;
  color: var(--aa-text-muted);
  margin-top: 0.4rem;
  line-height: 1.3;
}


/* === CONSULTATIVE CTA (NODE_04 / NODE_05) ==================== */
/* "Systems Deployment" language — no Shop/Buy */
.aa-cta-block {
  background: var(--aa-surface);
  border: 1px solid var(--aa-border-strong);
  border-radius: var(--aa-r-xl);
  padding: var(--aa-sp-lg);
  text-align: center;
  margin: var(--aa-sp-lg) 0;
  position: relative;
  overflow: hidden;
}

/* Neon glow underline — not a shadow */
.aa-cta-block::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 60%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--aa-lime), transparent);
}

.aa-cta-block__eyebrow {
  font-family: var(--aa-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--aa-lime);
  text-transform: uppercase;
  margin-bottom: var(--aa-sp-xs);
}

.aa-cta-block h3 {
  font-family: var(--aa-font-sans);
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  font-weight: 700;
  color: var(--aa-text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.015em;
}

.aa-cta-block p {
  font-size: 0.9rem;
  color: var(--aa-text-secondary);
  margin: 0 auto var(--aa-sp-md);
  max-width: 52ch;
  font-family: var(--aa-font-sans);
}

.aa-cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--aa-sp-sm);
  flex-wrap: wrap;
}

/* NODE_05: Consultative button — no transactional language */
.aa-cta-btn {
  display: inline-block;
  padding: 0.72rem 1.75rem;
  background: var(--aa-lime);
  color: var(--aa-base);
  font-family: var(--aa-font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  border-radius: var(--aa-r-md);
  transition: all var(--aa-transition);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  text-transform: uppercase;
}

/* Focus/hover: neon glow only — no decorative shadow */
.aa-cta-btn:hover,
.aa-cta-btn:focus-visible {
  background: transparent;
  color: var(--aa-lime);
  border-color: var(--aa-lime);
  box-shadow: var(--aa-glow);
  text-decoration: none;
  outline: none;
}

.aa-cta-btn--ghost {
  background: transparent;
  color: var(--aa-text-secondary);
  border: 1px solid var(--aa-border-strong);
}

.aa-cta-btn--ghost:hover,
.aa-cta-btn--ghost:focus-visible {
  border-color: var(--aa-lime);
  color: var(--aa-lime);
  box-shadow: var(--aa-glow-subtle);
  background: transparent;
}


/* === FAQ ACCORDION =========================================== */
.aa-faq { margin: var(--aa-sp-lg) 0; }

.aa-faq__eyebrow {
  font-family: var(--aa-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  color: var(--aa-lime);
  text-transform: uppercase;
  margin-bottom: var(--aa-sp-md);
}

.aa-faq-item {
  border: 1px solid var(--aa-border);
  border-radius: var(--aa-r-md);
  margin-bottom: 0.4rem;
  overflow: hidden;
  transition: border-color var(--aa-transition);
}

.aa-faq-item[open] {
  border-color: var(--aa-border-strong);
}

.aa-faq-item summary {
  padding: var(--aa-sp-sm) var(--aa-sp-md);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  color: var(--aa-text-primary);
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--aa-sp-sm);
  transition: background var(--aa-transition);
  user-select: none;
  font-family: var(--aa-font-sans);
}

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

.aa-faq-item summary::after {
  content: '+';
  margin-left: auto;
  font-family: var(--aa-font-mono);
  font-size: 1.2rem;
  color: var(--aa-lime);
  transition: transform var(--aa-transition);
  line-height: 1;
}

.aa-faq-item[open] summary::after { transform: rotate(45deg); }

.aa-faq-item summary:hover { background: var(--aa-surface); }

.aa-faq-item__answer {
  padding: 0 var(--aa-sp-md) var(--aa-sp-md);
  padding-top: var(--aa-sp-sm);
  font-size: 0.88rem;
  color: var(--aa-text-secondary);
  border-top: 1px solid var(--aa-border);
  line-height: 1.65;
  font-family: var(--aa-font-sans);
}


/* === STEP-BY-STEP GUIDE ====================================== */
.aa-steps { margin: var(--aa-sp-lg) 0; }

.aa-steps__eyebrow {
  font-family: var(--aa-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  color: var(--aa-lime);
  text-transform: uppercase;
  margin-bottom: var(--aa-sp-md);
}

.aa-step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--aa-sp-sm);
  margin-bottom: var(--aa-sp-md);
  position: relative;
}

.aa-step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 40px;
  width: 1px;
  height: calc(100% + var(--aa-sp-md) - 40px);
  background: var(--aa-border-strong);
}

.aa-step__num {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--aa-surface-alt);
  border: 1px solid var(--aa-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--aa-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--aa-lime);
  flex-shrink: 0;
}

.aa-step__body h4 {
  font-family: var(--aa-font-sans);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--aa-text-primary);
  margin-bottom: 0.35rem;
  margin-top: 0.55rem;
  letter-spacing: 0;
  text-transform: none;
}

.aa-step__body p {
  font-size: 0.875rem;
  color: var(--aa-text-secondary);
  margin: 0;
  max-width: none;
  font-family: var(--aa-font-sans);
}

.aa-step__time {
  font-family: var(--aa-font-mono);
  font-size: 0.62rem;
  color: var(--aa-text-muted);
  margin-top: 0.3rem;
  display: block;
}


/* === NAVIGATION ============================================== */
.aa-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(18, 18, 18, 0.90);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--aa-border);
}

.aa-nav__inner {
  display: flex;
  align-items: center;
  height: 54px;
  gap: var(--aa-sp-md);
}

.aa-nav__logo {
  font-family: var(--aa-font-sans);
  font-weight: 900;
  font-size: 0.92rem;
  letter-spacing: -0.01em;
  color: var(--aa-text-primary);
  text-decoration: none;
}

/* Lime accent on logo mark */
.aa-nav__logo span { color: var(--aa-lime); }

.aa-nav__links {
  display: flex;
  gap: var(--aa-sp-md);
  list-style: none;
  margin-left: auto;
  padding: 0;
}

.aa-nav__links a {
  font-family: var(--aa-font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--aa-text-secondary);
  text-decoration: none;
  transition: color var(--aa-transition);
}

.aa-nav__links a:hover,
.aa-nav__links a[aria-current="page"] { color: var(--aa-lime); }

.aa-nav__cta { margin-left: var(--aa-sp-sm); }

@media (max-width: 768px) {
  .aa-nav__links { display: none; }
}


/* === GUARDRAIL FOOTER (NODE_04) ============================== */
/* YMYL shield — required on every article */
.aa-guardrail {
  font-family: var(--aa-font-mono);
  font-size: 0.72rem;
  color: var(--aa-text-muted);
  line-height: 1.6;
  border-top: 1px solid var(--aa-border-subtle);
  padding-top: var(--aa-sp-md);
  margin-top: var(--aa-sp-xl);
}

.aa-guardrail a {
  color: var(--aa-text-muted);
  text-decoration: underline;
}

.aa-guardrail a:hover { color: var(--aa-text-secondary); }

/* Affiliate Disclosure (separate from YMYL guardrail) */
.aa-disclosure {
  font-family: var(--aa-font-mono);
  font-size: 0.7rem;
  color: var(--aa-text-muted);
  line-height: 1.6;
  margin-top: var(--aa-sp-sm);
}

.aa-disclosure a {
  color: var(--aa-text-muted);
  text-decoration: underline;
}


/* === CITATIONS (NODE_01) ===================================== */
.aa-citations { margin-top: var(--aa-sp-lg); }

.aa-citations__eyebrow {
  font-family: var(--aa-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--aa-text-muted);
  text-transform: uppercase;
  margin-bottom: var(--aa-sp-sm);
}

.aa-citations ol {
  padding-left: var(--aa-sp-lg);
}

.aa-citations li {
  font-family: var(--aa-font-mono);
  font-size: 0.72rem;
  color: var(--aa-text-muted);
  margin-bottom: 0.35rem;
}

.aa-citations a { color: var(--aa-lime); }
.aa-citations a:hover { text-decoration: underline; }


/* === FOOTER ================================================== */
.aa-footer {
  background: var(--aa-surface);
  border-top: 1px solid var(--aa-border);
  padding: var(--aa-sp-xl) 0 var(--aa-sp-lg);
}

.aa-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--aa-sp-lg);
  margin-bottom: var(--aa-sp-lg);
}

@media (max-width: 768px) {
  .aa-footer__grid { grid-template-columns: 1fr; }
}

.aa-footer__logo {
  font-family: var(--aa-font-sans);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--aa-text-primary);
  margin-bottom: var(--aa-sp-sm);
}

.aa-footer__logo span { color: var(--aa-lime); }

.aa-footer__tagline {
  font-family: var(--aa-font-sans);
  font-size: 0.82rem;
  color: var(--aa-text-muted);
  max-width: 32ch;
  line-height: 1.6;
}

.aa-footer__col-title {
  font-family: var(--aa-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--aa-text-muted);
  text-transform: uppercase;
  margin-bottom: var(--aa-sp-sm);
}

.aa-footer__links {
  list-style: none;
  padding: 0;
}

.aa-footer__links li { margin-bottom: 0.5rem; }

.aa-footer__links a {
  font-family: var(--aa-font-sans);
  font-size: 0.82rem;
  color: var(--aa-text-secondary);
  text-decoration: none;
  transition: color var(--aa-transition);
}

.aa-footer__links a:hover { color: var(--aa-lime); }

.aa-footer__bottom {
  border-top: 1px solid var(--aa-border-subtle);
  padding-top: var(--aa-sp-md);
  display: flex;
  align-items: center;
  gap: var(--aa-sp-md);
  flex-wrap: wrap;
}

.aa-footer__copy {
  font-family: var(--aa-font-mono);
  font-size: 0.68rem;
  color: var(--aa-text-muted);
}

.aa-footer__legal {
  margin-left: auto;
  display: flex;
  gap: var(--aa-sp-md);
}

.aa-footer__legal a {
  font-family: var(--aa-font-mono);
  font-size: 0.68rem;
  color: var(--aa-text-muted);
  text-decoration: underline;
}


/* === UTILITIES =============================================== */
.aa-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.aa-divider {
  border: none;
  border-top: 1px solid var(--aa-border);
  margin: var(--aa-sp-lg) 0;
}

/* Badges — sharp corners, mono type */
.aa-badge {
  display: inline-block;
  padding: 0.18rem 0.6rem;
  border-radius: 2px;
  font-family: var(--aa-font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid transparent;
}

.aa-badge--lime   { background: var(--aa-lime-dim); border-color: var(--aa-border-lime); color: var(--aa-lime); }
.aa-badge--neutral { background: transparent; border-color: var(--aa-border-strong); color: var(--aa-text-muted); }

/* ── Affiliate Product Card: .aa-affiliate-card ──────────────────── */
.aa-affiliate-card {
  border: 1px solid var(--aa-border-lime);
  border-left: 3px solid var(--aa-lime);
  background: var(--aa-surface);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
}
.aa-affiliate-card__badge {
  font-family: var(--aa-font-mono);
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--aa-lime);
  margin-bottom: 0.9rem;
}
.aa-affiliate-card__grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
}
@media (max-width: 560px) {
  .aa-affiliate-card__grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}
.aa-affiliate-card__brand {
  font-family: var(--aa-font-sans);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--aa-text-primary);
  margin-bottom: 0.45rem;
}
.aa-affiliate-card__desc {
  font-size: 0.84rem;
  line-height: 1.62;
  color: var(--aa-text-secondary);
  margin: 0;
  max-width: 58ch;
}
.aa-affiliate-card__cta-col {
  flex-shrink: 0;
}
.aa-affiliate-card__cta {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--aa-lime);
  color: var(--aa-base) !important;
  font-family: var(--aa-font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.65rem 1.1rem;
  text-decoration: none;
  transition: opacity var(--aa-transition);
  white-space: nowrap;
  min-width: 148px;
}
.aa-affiliate-card__cta:hover {
  opacity: 0.88;
}
.aa-affiliate-card__code {
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  opacity: 0.75;
  margin-top: 0.2rem;
  display: block;
}

/* ============================================================
   END ARLINGTON ALPHA | aa-styles.css v2026.5
   ============================================================ */