/* Navigation & Footer Standardisation. Reuses existing --bc-* tokens from
   phase1/component-library.css (visual system unchanged - this is a structure/IA
   pass, not a redesign). Adds: working mobile menu, Services dropdown, 4-col footer. */

/* ---- Blog Table of Contents ---- */
.blog-toc {
  background: var(--bc-paper-alt);
  border: 1px solid var(--bc-line);
  border-radius: var(--bc-radius);
  padding: var(--bc-space-4);
  margin: var(--bc-space-5) 0;
}
.blog-toc__title {
  margin: 0 0 var(--bc-space-3);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: var(--bc-tracking-wide);
  font-size: var(--bc-text-sm);
  color: var(--bc-primary-dark);
}
.blog-toc ol {
  margin: 0;
  padding-left: var(--bc-space-5);
  display: flex;
  flex-direction: column;
  gap: var(--bc-space-2);
}
.blog-toc a {
  color: var(--bc-ink-soft);
  text-decoration: none;
}
.blog-toc a:hover,
.blog-toc a:focus-visible {
  color: var(--bc-primary);
  text-decoration: underline;
}

/* ---- Logo ---- */
.site-header__logo {
  height: 40px;
  width: auto;
  display: block;
}

/* ---- Services dropdown (desktop: hover/focus, mobile: static expanded list) ---- */
.site-nav__has-dropdown { position: relative; }

.site-nav__dropdown {
  list-style: none;
  margin: 0;
  padding: var(--bc-space-2) 0;
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  background: var(--bc-white);
  border: 1px solid var(--bc-line);
  border-radius: var(--bc-radius);
  box-shadow: var(--bc-shadow);
  z-index: 50;
}

.site-nav__has-dropdown:hover .site-nav__dropdown,
.site-nav__has-dropdown:focus-within .site-nav__dropdown {
  display: block;
}

.site-nav__dropdown li a {
  display: block;
  padding: var(--bc-space-2) var(--bc-space-4);
  white-space: nowrap;
  color: var(--bc-ink);
}

.site-nav__dropdown li a:hover,
.site-nav__dropdown li a:focus-visible {
  background: var(--bc-paper-alt);
  color: var(--bc-primary);
}

/* ---- Mobile menu (functional toggle) ---- */
@media (max-width: 640px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bc-white);
    border-top: 1px solid var(--bc-line);
    box-shadow: var(--bc-shadow);
    padding: var(--bc-space-4);
    flex-direction: column;
    align-items: stretch;
    gap: var(--bc-space-3);
  }

  .site-header__bar { position: relative; }

  .site-nav.is-open { display: flex; }

  .site-nav__list {
    display: flex !important;
    flex-direction: column;
    gap: var(--bc-space-1);
  }

  .site-nav__dropdown {
    display: block;
    position: static;
    box-shadow: none;
    border: none;
    padding-left: var(--bc-space-4);
  }

  .site-nav__has-dropdown:hover .site-nav__dropdown,
  .site-nav__has-dropdown:focus-within .site-nav__dropdown {
    display: block;
  }
}

/* ---- 4-column footer ---- */
.site-footer__grid--4col {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--bc-space-6);
}

@media (max-width: 960px) {
  .site-footer__grid--4col { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .site-footer__grid--4col { grid-template-columns: 1fr; }
}

.site-footer__tagline { margin: var(--bc-space-3) 0; color: var(--bc-ink-soft); }
.site-footer__phone { font-weight: 700; }

/* ---- Social profile icons (shared: footer, About Us, Contact Us) ---- */
.bc-social {
  display: flex;
  gap: var(--bc-space-3);
  margin-top: var(--bc-space-3);
}
.bc-social__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bc-ink-soft, #45605c);
  color: #fff;
  transition: background-color .15s ease;
}
.bc-social__link:hover { background: var(--bc-primary); }
.bc-social__link svg { width: 18px; height: 18px; fill: currentColor; }
.site-footer .bc-social__link { background: rgba(255,255,255,.12); }
.site-footer .bc-social__link:hover { background: var(--bc-primary); }

.site-footer__legal {
  margin-top: var(--bc-space-6);
  padding-top: var(--bc-space-4);
  border-top: 1px solid var(--bc-line-dark);
  font-size: var(--bc-text-xs);
  color: var(--bc-ink-faint, #8fa8a3);
  line-height: 1.6;
}
.site-footer__legal p { margin: 0 0 var(--bc-space-2); }
.site-footer__legal p:last-child { margin-bottom: 0; }