/* ============================================================
   ARTICLE 11 AI — CANONICAL SHARED SHELL  (a11-shell.css)
   Single source of truth for site-wide chrome.
   Extracted from index.html (the professional standard).
   Link this in <head>. Do NOT inline-fork these tokens per page.
   Edit HERE once -> consistency everywhere.
   v1  2026-05-16  S2_CASE / Witness, per THE_BRIDGE
   ============================================================ */

:root {
  --a11-primary:    #0A0E17;
  --a11-secondary:  #111827;
  --a11-tertiary:   #1E293B;
  --a11-gold:       #D4AF37;
  --a11-gold-soft:  rgba(212, 175, 55, 0.15);
  --a11-text:       #E2E8F0;
  --a11-text-muted: #94A3B8;
  --a11-text-dim:   #64748B;
  --a11-success:    #10B981;
  --a11-border:     rgba(148, 163, 184, 0.12);
}

/* Base — only applied via .a11-shell-base to avoid clobbering page CSS */
.a11-shell-base, body.a11-shell-base {
  background: var(--a11-primary);
  color: var(--a11-text);
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  margin: 0;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ───────── STATUS BANNER ───────── */
.a11-status-banner {
  position: sticky; top: 0; z-index: 200;
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--a11-border);
  padding: 0.45rem 1.5rem;
  font-size: 0.75rem;
  font-family: 'IBM Plex Mono', monospace;
}
.a11-status-inner {
  display: flex; flex-wrap: wrap; gap: 0.35rem 1rem;
  align-items: center; justify-content: center;
  max-width: 1200px; margin: 0 auto;
}
.a11-pill {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.2rem 0.65rem; border-radius: 999px;
  border: 1px solid; font-size: 0.72rem; letter-spacing: 0.02em;
}
.a11-pill.live  { border-color: rgba(16,185,129,0.4); color: var(--a11-success); }
.a11-pill.live::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--a11-success); box-shadow: 0 0 8px var(--a11-success);
  animation: a11-pulse 2s ease-in-out infinite;
}
.a11-pill.gold  { border-color: rgba(212,175,55,0.4); color: var(--a11-gold); }
.a11-pill.cyan  { border-color: rgba(6,182,212,0.4);  color: #06B6D4; }
.a11-pill.muted { border-color: var(--a11-border);    color: var(--a11-text-muted); }
@keyframes a11-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ───────── NAV ───────── */
.a11-nav {
  position: sticky; top: 30px; z-index: 150;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--a11-border);
  padding: 0.9rem 1.5rem;
}
.a11-nav-inner {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 1200px; margin: 0 auto;
}
.a11-nav-logo { font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; color: var(--a11-text); }
.a11-nav-logo span { color: var(--a11-gold); }
.a11-nav-links { display: flex; gap: 1.75rem; list-style: none; margin: 0; padding: 0; }
.a11-nav-links a { color: var(--a11-text-muted); font-size: 0.88rem; font-weight: 500; }
.a11-nav-links a:hover { color: var(--a11-gold); }
.a11-nav-toggle {
  display: none; background: transparent; border: 1px solid var(--a11-border);
  border-radius: 8px; padding: 0.4rem 0.7rem; cursor: pointer;
  color: var(--a11-text); font-family: inherit; font-size: 0.85rem;
}
.a11-nav-toggle:hover { border-color: var(--a11-gold); color: var(--a11-gold); }
@media (max-width: 760px) {
  .a11-nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(10,14,23,0.98); backdrop-filter: blur(14px);
    flex-direction: column; gap: 0; padding: 0.5rem 0;
    border-bottom: 1px solid var(--a11-border);
  }
  .a11-nav-links.open { display: flex; }
  .a11-nav-links li { padding: 0.75rem 1.5rem; border-top: 1px solid var(--a11-border); }
  .a11-nav-toggle { display: inline-flex; align-items: center; gap: 0.4rem; }
  .a11-nav { position: relative; top: 30px; }
}

/* ───────── FOOTER ───────── */
.a11-footer {
  background: var(--a11-primary);
  padding: 4rem 1.5rem 2rem;
  border-top: 1px solid var(--a11-border);
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--a11-text);
}
.a11-footer a { color: var(--a11-gold); text-decoration: none; transition: color 0.2s; }
.a11-footer a:hover { color: var(--a11-text); }
.a11-footer-grid {
  display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr;
  gap: 2.5rem; max-width: 1200px; margin: 0 auto 3rem;
}
@media (max-width: 960px) { .a11-footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
@media (max-width: 520px) { .a11-footer-grid { grid-template-columns: 1fr; } }
.a11-footer-logo { font-weight: 700; font-size: 1.05rem; color: var(--a11-text); margin-bottom: 0.75rem; }
.a11-footer-logo span { color: var(--a11-gold); }
.a11-footer-brand p { color: var(--a11-text-muted); font-size: 0.88rem; line-height: 1.55; margin: 0 0 1rem; max-width: 340px; }
.a11-chain-line {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem;
  color: var(--a11-text-muted) !important; margin: 1rem 0 0;
}
.a11-chain-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--a11-success); box-shadow: 0 0 8px var(--a11-success);
  animation: a11-pulse 2s ease-in-out infinite; flex-shrink: 0;
}
.a11-footer-col h5 {
  font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--a11-gold); margin: 0 0 1rem;
  font-family: 'IBM Plex Mono', monospace; font-weight: 600;
}
.a11-footer-col ul { list-style: none; padding: 0; margin: 0; }
.a11-footer-col li { margin-bottom: 0.55rem; }
.a11-footer-col a { color: var(--a11-text-muted); font-size: 0.87rem; line-height: 1.4; }
.a11-footer-col a:hover { color: var(--a11-gold); }
.a11-footer-legal {
  max-width: 1200px; margin: 0 auto; padding-top: 2rem;
  border-top: 1px solid var(--a11-border);
  display: flex; flex-wrap: wrap; justify-content: space-between;
  gap: 1rem; font-size: 0.78rem; color: var(--a11-text-dim);
  font-family: 'IBM Plex Mono', monospace;
}
.a11-footer-legal a { color: var(--a11-text-dim); }
.a11-footer-legal a:hover { color: var(--a11-gold); }
.a11-vet-badge { display: inline-flex; align-items: center; gap: 0.35rem; color: var(--a11-gold); }
