/* chrome.css — shared page chrome (nav + footer + design tokens) for the AC hub.
   Extracted VERBATIM from index.html's inline <style> so guide pages render the same
   chrome as the homepage. index.html keeps its inline copy (byte-frozen); the drift guard
   in execution/tests/test_hub_chrome.py asserts this file equals that inline block.
   Do not hand-edit: regenerate from index.html's inline <style>. */

@font-face {
  font-family: 'Display';
  src: local('Georgia'), local('Times New Roman'), local('serif');
  font-display: swap;
}
:root {
  --bg-0: #0A1128; --bg-1: #001F54; --bg-2: #034078; --bg-3: #1282A2;
  --accent: #00ADEE; --green: #4ADE80; --green-dim: #166534;
  --red: #F87171; --amber: #FBBF24;
  --t1: #F1F5F9; --t2: #94A3B8; --t3: #64748B;
  --border: rgba(255,255,255,0.1); --border-accent: rgba(0,173,238,0.2);
  --font-display: 'Display', Georgia, 'Times New Roman', serif;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --r: 12px; --max-w: 640px; --max-w-wide: 1024px;
  --section-pad: 120px;
}
/* Nav */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; background: rgba(10,17,40,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); font-family: var(--font); color: var(--t1); }
.nav-inner { max-width: var(--max-w-wide); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.25rem; color: var(--t1); text-decoration: none; }
.nav-logo img { display: block; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link { font-size: 14px; color: var(--t2); transition: color 0.15s; text-decoration: none; }
.nav-link:hover { color: var(--t1); }
.nav-cta { height: 44px; padding: 0 24px; background: var(--accent); color: var(--bg-0); font-weight: 600; font-size: 14px; border-radius: var(--r); display: flex; align-items: center; gap: 6px; transition: opacity 0.15s; text-decoration: none; }
.nav-cta:hover { opacity: 0.9; }
.nav-cta svg { width: 16px; height: 16px; display: block; }
.nav-hamburger { display: none; padding: 8px; background: none; border: none; color: inherit; cursor: pointer; }
@media (max-width: 767px) {
  .nav-links { display: none; }
  .nav-hamburger { display: block; color: var(--t1); }
  .nav-links.open {
    display: flex;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-0);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 40;
    gap: 24px;
  }
  .nav-hamburger .icon-close { display: none; }
  .nav-hamburger.active .icon-menu { display: none; }
  .nav-hamburger.active .icon-close { display: block; }
}

/* Footer */
.footer { background: var(--bg-1); padding: 48px 24px 32px; font-family: var(--font); color: var(--t1); }
.footer-grid { max-width: var(--max-w-wide); margin: 0 auto; display: grid; gap: 32px; margin-bottom: 32px; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: repeat(3, 1fr); } }
.footer-heading { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--t1); }
.footer-text { font-size: 14px; color: var(--t2); max-width: 20rem; }
.footer-label { font-size: 12px; color: var(--t3); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px; }
.footer-link { display: block; font-size: 14px; color: var(--t2); padding: 4px 0; transition: color 0.15s; text-decoration: none; }
.footer-link:hover { color: var(--t1); }
.footer-bottom { max-width: var(--max-w-wide); margin: 0 auto; border-top: 1px solid var(--border); padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; font-size: 12px; color: var(--t3); }
.footer-bottom a { transition: color 0.15s; color: inherit; text-decoration: none; }
.footer-bottom a:hover { color: var(--t1); }
.footer-heading{min-height:40px}