.topbar {
  background: #fff;
  border-bottom: 1px solid var(--c-border);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--sp-2);
}

.brand {
  display: flex;
  align-items: center;
}

.brand__mark-img {
  height: 84px;
  width: auto;
  flex-shrink: 0;
}

.social-row {
  display: flex;
  gap: var(--sp-3);
}

.social-row a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-ink);
  border: 1px solid var(--c-border);
  transition: var(--transition);
}

.social-row a:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

.social-row .icon { width: 15px; height: 15px; }

/* Main nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
}

.site-header.is-scrolled .topbar {
  display: none;
}

.mainnav {
  background: var(--c-primary);
  transition: background var(--transition);
}

.mainnav__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mainnav__list {
  display: flex;
  align-items: stretch;
}

.mainnav__list > li {
  position: relative;
}

.mainnav__list > li.has-mega {
  position: static;
}

.mainnav__list > li > a {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 1.15rem 1.1rem;
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.94rem;
  transition: background var(--transition);
}

.mainnav__list > li > a .icon {
  width: 13px;
  height: 13px;
}

.mainnav__list > li:hover > a,
.mainnav__list > li.is-active > a {
  background: rgba(0, 0, 0, 0.14);
}

.mobile-toggle,
.mobile-nav__close {
  display: none;
}

/* Dropdown */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 250px;
  background: #fff;
  box-shadow: var(--shadow-md);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: var(--sp-2) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
}

.mainnav__list > li:hover > .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 0.6rem 1.25rem;
  color: var(--c-ink);
  font-size: 0.9rem;
  border-left: 3px solid transparent;
}

.dropdown a:hover {
  background: var(--c-surface-blue);
  border-left-color: var(--c-primary);
  color: var(--c-primary);
}

/* Mega menu for Services — anchored to the nav container (not the trigger
   link) so it can't overflow past the viewport when the link sits off-centre. */
.mega {
  left: 0;
  right: 0;
  width: auto;
  padding: var(--sp-4);
}

.mega {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(6, auto);
  grid-auto-flow: column;
  gap: 0 var(--sp-5);
}

.mega a {
  border-radius: var(--radius);
}

@media (max-width: 1199px) {
  .mega { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile */
@media (max-width: 991px) {
  .brand__mark-img {
    height: 60px;
  }

  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border: 0;
  }

  .mobile-toggle .icon { width: 20px; height: 20px; }

  .mainnav__inner { padding-block: var(--sp-2); }

  .mainnav__list {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(340px, 88vw);
    height: 100vh;
    background: var(--c-ink);
    flex-direction: column;
    align-items: stretch;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    z-index: 600;
    padding: var(--sp-6) 0 var(--sp-6);
  }

  body.nav-open .mainnav__list {
    transform: translateX(0);
  }

  .mainnav__list > li > a {
    color: #fff;
    padding: 0.9rem 1.5rem;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .dropdown,
  .mega {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    width: 100%;
    box-shadow: none;
    border-radius: 0;
    background: rgba(255, 255, 255, 0.04);
    display: none;
    padding: 0;
  }

  .mega { grid-template-columns: 1fr; gap: 0; }

  li.is-open > .dropdown,
  li.is-open > .mega {
    display: block;
  }

  .dropdown a,
  .mega a {
    color: rgba(255, 255, 255, 0.82);
    padding: 0.75rem 2rem;
  }

  .dropdown a:hover,
  .mega a:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
  }

  .mobile-nav__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin: 0 1.5rem var(--sp-4) auto;
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
  }

  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 550;
  }

  body.nav-open .nav-overlay {
    opacity: 1;
    visibility: visible;
  }
}

/* Notification ticker — fixed to viewport bottom, matches reference site */
.ticker {
  background: var(--c-primary-darker);
  color: #fff;
  font-size: var(--fs-xs);
  overflow: hidden;
  white-space: nowrap;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--ticker-h);
  display: flex;
  align-items: center;
  z-index: 500;
}

body { padding-bottom: var(--ticker-h); }

.ticker__track {
  display: inline-flex;
  gap: 4rem;
  padding-left: 100%;
  animation: ticker 34s linear infinite;
}

.ticker:hover .ticker__track {
  animation-play-state: paused;
}

@keyframes ticker {
  to { transform: translateX(-100%); }
}