/* ==========================================================================
   06. ANNOUNCEMENT BAR & NAVBAR
   The mobile drawer layout lives in 13-responsive.css.
   ========================================================================== */

.announce-bar {
  height: var(--announce-height);
  background: var(--navy-900);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-align: center;
  padding-inline: var(--sp-2);
}
/* The text sits in its own element: as bare text nodes either side of the
   <span>, the flex container would trim the spaces around "future". */
.announce-bar p { font-size: inherit; }
.announce-bar span { color: var(--accent-500); font-weight: 600; }

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0);
  border-bottom: 1px solid transparent;
  transition: background var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease);
}

.navbar.is-scrolled {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

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

.nav-logo {
  height: 52px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.nav-links a {
  position: relative;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--navy-800);
  padding: 8px 2px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent-500);
  transition: width var(--dur-fast) var(--ease);
  border-radius: 2px;
}

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-links a.active { color: var(--blue-600); }

.nav-cta { display: flex; align-items: center; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy-900);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
  margin-inline: auto;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }