/**
 * BBI enterprise nav + service page layout
 * Structural inspiration only — BBI brand, proof-safe language
 */

/* ---- Enterprise header / dropdowns ---- */
.bbi-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 3, 4, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--bbi-neon-soft, rgba(220, 53, 88, 0.18)) 55%, var(--bbi-teal-soft, rgba(46, 184, 166, 0.16)));
}

.bbi-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 80px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.bbi-brand {
  display: flex;
  align-items: center;
  color: var(--bbi-text);
  text-decoration: none;
  flex-shrink: 0;
  transition: filter 0.25s ease, transform 0.25s ease;
}

.bbi-brand:hover {
  filter: brightness(1.08);
}

.bbi-brand-wordmark {
  display: inline-flex;
  align-items: center;
  height: 56px;
  max-width: 200px;
}

.bbi-brand-wordmark img,
img.bbi-logo-mark {
  height: 56px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  object-position: left center;
  display: block;
  background: transparent;
}

.bbi-foot-brand > img.bbi-logo-mark {
  height: 48px;
  max-width: 160px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.bbi-brand-text {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  max-width: 140px;
  line-height: 1.2;
}

.bbi-brand-short {
  display: none;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.bbi-nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.bbi-nav-dropdown {
  position: relative;
}

.bbi-nav-trigger {
  background: transparent;
  border: none;
  color: var(--bbi-muted);
  font: inherit;
  font-size: 0.88rem;
  padding: 10px 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 8px;
}

.bbi-nav-trigger:hover,
.bbi-nav-trigger[aria-expanded='true'] {
  color: var(--bbi-text);
  background: rgba(220, 53, 88, 0.08);
}

.bbi-nav-caret {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.7;
}

.bbi-nav-panel {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 240px;
  background: var(--bbi-surface);
  border: 1px solid var(--bbi-border-gold);
  border-radius: var(--radius-sm);
  padding: 8px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}

.bbi-nav-trigger[aria-expanded='true'] + .bbi-nav-panel {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.bbi-nav-panel a {
  display: block;
  padding: 10px 12px;
  color: var(--bbi-muted);
  text-decoration: none;
  font-size: 0.86rem;
  border-radius: 6px;
}

.bbi-nav-panel a:hover {
  color: var(--bbi-text);
  background: rgba(220, 53, 88, 0.12);
  text-decoration: none;
}

.bbi-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.bbi-nav-assess {
  white-space: nowrap;
}

.bbi-menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--bbi-border-gold);
  border-radius: 8px;
  width: 44px;
  height: 40px;
  cursor: pointer;
  padding: 0;
}

.bbi-menu-toggle span,
.bbi-menu-toggle span::before,
.bbi-menu-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--bbi-gold);
  margin: 0 auto;
  position: relative;
}

.bbi-menu-toggle span::before,
.bbi-menu-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
}

.bbi-menu-toggle span::before {
  top: -6px;
}

.bbi-menu-toggle span::after {
  top: 6px;
}

.bbi-nav-mobile {
  background: var(--bbi-bg);
  border-bottom: 1px solid var(--bbi-border-gold);
  padding: 12px 20px 20px;
}

.bbi-nav-mobile[hidden] {
  display: none !important;
}

.bbi-nav-group {
  margin-bottom: 16px;
}

.bbi-nav-group-label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bbi-teal, #2eb8a6);
  margin-bottom: 8px;
}

.bbi-nav-group a {
  display: block;
  padding: 10px 0;
  color: var(--bbi-muted);
  text-decoration: none;
  border-top: 1px solid rgba(220, 53, 88, 0.12);
}

.bbi-nav-mobile .btn {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
}

/* ---- Persistent CTA bar ---- */
.bbi-persistent-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: rgba(5, 3, 4, 0.96);
  border-top: 1px solid var(--bbi-border-gold);
  padding: 10px 16px;
}

.bbi-persistent-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.bbi-persistent-copy {
  margin: 0;
  font-size: 0.82rem;
  color: var(--bbi-muted);
  flex: 1;
  min-width: 200px;
}

.bbi-persistent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.bbi-persistent-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 10px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

body.has-bbi-persistent {
  padding-bottom: 76px;
}

/* ---- Footer ---- */
.bbi-footer {
  border-top: 2px solid var(--bbi-border-gold);
  background: var(--bbi-bg);
  color: var(--bbi-muted);
  padding: 48px 20px 0;
  margin-top: 48px;
}

.bbi-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr repeat(4, 1fr);
  gap: 28px;
}

.bbi-foot-brand p {
  font-size: 0.88rem;
  line-height: 1.5;
  margin: 12px 0;
}

.bbi-foot-col h4 {
  color: var(--bbi-teal, #2eb8a6);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 12px;
}

.bbi-foot-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.bbi-foot-col a {
  color: var(--bbi-muted);
  text-decoration: none;
  font-size: 0.86rem;
  line-height: 1.8;
}

.bbi-foot-col a:hover {
  color: var(--bbi-text);
}

.bbi-foot-bar {
  max-width: 1200px;
  margin: 32px auto 0;
  padding: 16px 0 24px;
  border-top: 1px solid var(--bbi-border-gold);
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 1024px) {
  .bbi-nav-desktop {
    display: none;
  }
  .bbi-menu-toggle {
    display: block;
  }
  .bbi-nav-assess {
    display: none;
  }
  .bbi-brand-wordmark {
    max-width: 150px;
    height: 48px;
  }
  .bbi-brand-wordmark img,
  img.bbi-logo-mark {
    height: 48px;
    max-width: 150px;
  }
  .bbi-footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .bbi-footer-inner {
    grid-template-columns: 1fr;
  }
  .bbi-persistent-copy {
    width: 100%;
  }
  .bbi-brand-wordmark {
    max-width: 128px;
    height: 42px;
  }
  .bbi-brand-wordmark img,
  img.bbi-logo-mark {
    max-width: 128px;
    height: 42px;
  }
}