/* BiMA·gov visitor surface — design tokens.
   Single source of truth for colors, spacing, type scale, radius, shadows.
   Loaded by every public bima-web page; do NOT add page-specific rules here. */

:root {
  /* Colors — light mode (visitor surface default) */
  --bg-page:        #fafaf7;
  --bg-card:        #ffffff;
  --bg-subtle:      #f4f1ec;
  --fg-primary:     #1a1d1f;
  --fg-secondary:   #4a5159;
  --fg-muted:       #6b7280;
  --border-line:    #e7e5e0;
  --accent:         #0f6c5e;
  --accent-warm:    #c2410c;
  --success:        #15803d;

  /* Typography */
  --font-sans:      'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono:      'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --fs-h1:          64px;
  --fs-h1-mobile:   56px;
  --fs-lede:        22px;
  --fs-lede-mobile: 18px;
  --fs-h2:          40px;
  --fs-h2-mobile:   32px;
  --fs-h3:          24px;
  --fs-body:        17px;
  --fs-card-title:  18px;
  --fs-card-body:   16px;
  --fs-label:       13px;
  --fs-caption:     14px;

  /* Spacing */
  --gap-xs:         8px;
  --gap-sm:         16px;
  --gap-md:         32px;
  --gap-lg:         64px;
  --gap-xl:         120px;
  --gap-hero:       160px;

  /* Radius */
  --radius-sm:      8px;
  --radius-md:      12px;
  --radius-lg:      20px;

  /* Shadows — soft, layered. Premium SaaS uses shadows for elevation. */
  --shadow-sm:      0 1px 2px rgba(20, 25, 30, 0.04), 0 1px 3px rgba(20, 25, 30, 0.06);
  --shadow-md:      0 4px 12px rgba(20, 25, 30, 0.06), 0 8px 24px rgba(20, 25, 30, 0.04);
  --shadow-lg:      0 12px 32px rgba(20, 25, 30, 0.08), 0 24px 64px rgba(20, 25, 30, 0.06);
}

/* BiMA·gov wordmark lockup — single source of truth for the visitor surface.
   Span-based: .wm-main (BiMA), .wm-dot (·), .wm-suffix (gov). Same class
   names as bima-web/coming-soon.html so the brand reads identically across
   surfaces. Nav uses 22/18/18; footer uses 16/13/13 (smaller, supporting).
   Parent fallback styles render plain text (e.g., 'BiMA·gov') correctly on
   pages whose markup hasn't been migrated to spans yet. */
.bima-wordmark-nav {
  font-family: 'Inter Tight', var(--font-sans);
  font-weight: 700;
  font-size: 22px;
  color: var(--accent);
  letter-spacing: -0.025em;
  text-decoration: none;
  line-height: 1;
  display: inline-flex;
  align-items: baseline;
}
.bima-wordmark-nav:hover { opacity: 0.85; }
.bima-wordmark-nav .wm-main   { font-weight: 700; font-size: 22px; color: var(--accent); }
.bima-wordmark-nav .wm-dot    { font-weight: 400; font-size: 18px; color: var(--fg-muted); margin: 0 4px; }
.bima-wordmark-nav .wm-suffix { font-weight: 600; font-size: 18px; color: var(--fg-secondary); }

/* Premium 4-column footer used by every visitor-surface page. */
.site-footer {
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-line);
  margin-top: 96px;
  padding: 64px 32px 32px;
  font-size: var(--fs-caption);
  color: var(--fg-secondary);
}
.site-footer a { color: var(--fg-secondary); text-decoration: none; }
.site-footer a:hover { color: var(--fg-primary); }
.footer-newsletter { max-width: 1100px; margin: 0 auto 40px; padding-bottom: 32px;
                     border-bottom: 1px solid var(--border-line); }
.footer-newsletter-title { font-size: var(--fs-card-title); font-weight: 600;
                           color: var(--fg-primary); margin-bottom: 6px; }
.footer-newsletter-sub { font-size: var(--fs-caption); color: var(--fg-muted);
                         margin-bottom: 12px; }
.footer-newsletter-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.footer-newsletter-input { flex: 1; min-width: 240px; max-width: 360px;
                           padding: 10px 14px; font-size: var(--fs-caption);
                           border: 1px solid var(--border-line); border-radius: var(--radius-sm);
                           background: var(--bg-card); color: var(--fg-primary);
                           font-family: var(--font-sans); }
.footer-newsletter-input:focus { outline: 2px solid var(--accent); outline-offset: 1px;
                                 border-color: var(--accent); }
.footer-newsletter-btn { padding: 10px 18px; background: var(--fg-primary); color: #fff;
                         border: none; border-radius: var(--radius-sm);
                         font-size: var(--fs-caption); font-weight: 600; cursor: pointer;
                         font-family: var(--font-sans); }
.footer-newsletter-btn:hover { background: #2a2f33; }
.footer-newsletter-result { font-size: var(--fs-caption); color: var(--fg-muted); }
.footer-newsletter-result.hidden { display: none; }

.footer-grid { max-width: 1100px; margin: 0 auto;
               display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.footer-col-head { font-size: var(--fs-label); font-weight: 600;
                   text-transform: uppercase; letter-spacing: 0.08em;
                   color: var(--fg-muted); margin-bottom: 12px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 8px; font-size: var(--fs-caption); }

.footer-base { max-width: 1100px; margin: 48px auto 0; padding-top: 24px;
               border-top: 1px solid var(--border-line);
               display: flex; flex-wrap: wrap; align-items: center;
               justify-content: space-between; gap: 16px;
               font-size: var(--fs-caption); color: var(--fg-muted); }
.footer-wordmark { font-family: 'Inter Tight', var(--font-sans);
                   font-weight: 700;
                   color: var(--fg-primary);
                   letter-spacing: -0.025em;
                   display: inline-flex; align-items: baseline; }
.footer-wordmark .wm-main   { font-weight: 700; font-size: 16px; color: var(--fg-primary); }
.footer-wordmark .wm-dot    { font-weight: 400; font-size: 13px; color: var(--fg-muted);     margin: 0 3px; }
.footer-wordmark .wm-suffix { font-weight: 600; font-size: 13px; color: var(--fg-secondary); }
.footer-copy { font-size: var(--fs-caption); }

@media (max-width: 800px) {
  .site-footer { padding: 48px 20px 24px; margin-top: 64px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}