/* ============================================
   NAVBAR STYLES - ACCESSIBLE
   ============================================ */

.navbar-custom {
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

.navbar-custom.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}

/* Top Bar */
.top-bar {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 8px 0;
  font-size: 0.82rem;
  color: var(--white);
}

.top-bar a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: var(--transition);
}

.top-bar a:hover,
.top-bar a:focus {
  color: var(--white);
  text-decoration: underline;
  outline: 2px solid rgba(255,255,255,0.5);
  border-radius: 2px;
}

.top-bar-divider {
  color: rgba(255,255,255,0.4);
  margin: 0 10px;
}

/* Logo */
.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  padding: 10px 0;
}

.navbar-logo img {
  height: 60px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  font-family: var(--font-heading);
}

.logo-tagline {
  font-size: 0.7rem;
  color: var(--secondary-dark);
  font-style: italic;
  font-weight: 500;
}

/* Nav Links */
.navbar-nav .nav-link {
  color: var(--text-dark) !important;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 8px 14px !important;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  transform: scaleX(1);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--primary) !important;
  background: var(--primary-light);
  outline: 2px solid var(--primary-light);
}

.navbar-nav .nav-link.active {
  color: var(--primary) !important;
  font-weight: 600;
}

/* Emergency Button */
.navbar-emergency {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white) !important;
  border-radius: var(--radius-xl) !important;
  padding: 8px 18px !important;
  font-weight: 600 !important;
  animation: pulse-emergency 2.5s infinite;
}

.navbar-emergency:hover,
.navbar-emergency:focus {
  background: var(--primary-dark) !important;
  color: var(--white) !important;
  outline: 3px solid var(--primary-light) !important;
}

.navbar-emergency::after { display: none; }

@keyframes pulse-emergency {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

/* Book Appointment Button */
.btn-book-apt {
  background: var(--secondary);
  color: var(--white) !important;
  border-radius: var(--radius-xl) !important;
  padding: 8px 18px !important;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
}

.btn-book-apt:hover,
.btn-book-apt:focus {
  background: var(--secondary-dark) !important;
  color: var(--white) !important;
  outline: 3px solid var(--secondary-light) !important;
}

.btn-book-apt::after { display: none; }

/* Hamburger */
.navbar-toggler {
  border: 2px solid var(--primary-light) !important;
  padding: 8px;
  border-radius: var(--radius-sm) !important;
}

.navbar-toggler:focus {
  outline: 3px solid var(--primary-light) !important;
  box-shadow: none !important;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28224, 82, 82, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* Dropdown */
.dropdown-menu {
  border: 1px solid var(--medium-gray);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 8px;
}

.dropdown-item {
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 8px 14px;
  color: var(--text-dark);
  transition: var(--transition);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background: var(--primary-light);
  color: var(--primary-dark);
  outline: none;
}

/* Accessibility Focus Styles */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

@media (max-width: 991px) {
  .navbar-logo img { height: 48px; }
  .logo-name { font-size: 0.9rem; }
  .navbar-collapse {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 12px;
    border: 1px solid var(--medium-gray);
    margin-top: 8px;
    box-shadow: var(--shadow-md);
  }
}