/* ================================================================
   GeoHub — Navbar & Navigation
   ================================================================ */

/* ======================== NAVBAR ======================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(4, 5, 13, 0.85);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(4, 5, 13, 0.96);
  border-bottom-color: var(--border-subtle);
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.5px;
}
.navbar-brand .logo-icon {
  width: 34px;
  height: 34px;
  background: var(--gradient-brand);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-green);
}
.navbar-brand .logo-text {
  color: var(--text-primary);
}
.navbar-brand .logo-geo {
  color: var(--green);
}
.navbar-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.navbar-links a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.navbar-links a:hover,
.navbar-links a.active {
  color: var(--text-primary);
  background: var(--bg-elevated);
}
.navbar-links a.active {
  color: var(--green);
}
.nav-leaf a,
.nav-dropdown {
  position: relative;
}
.nav-menu-trigger {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.nav-menu-trigger i {
  font-size: 0.65rem;
  transition: transform 0.2s ease;
}
.nav-dropdown:hover .nav-menu-trigger,
.nav-dropdown.open .nav-menu-trigger,
.nav-dropdown.active .nav-menu-trigger {
  color: var(--text-primary);
  background: var(--bg-elevated);
}
.nav-dropdown.active .nav-menu-trigger {
  color: var(--green);
}
.nav-dropdown:hover .nav-menu-trigger i,
.nav-dropdown.open .nav-menu-trigger i {
  transform: rotate(180deg);
}
.nav-dropdown-panel {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  min-width: 220px;
  padding: 10px;
  border-radius: var(--radius-lg);
  background: rgba(17, 24, 39, 0.98);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}
.nav-dropdown-panel::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: -12px;
  height: 12px;
}
.nav-dropdown:hover .nav-dropdown-panel,
.nav-dropdown.open .nav-dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown-title {
  padding: 6px 10px 8px;
  font-size: 0.68rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}
.nav-dropdown-panel a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}
.nav-dropdown-panel a i {
  width: 15px;
  color: var(--green);
  font-size: 0.78rem;
}
.nav-dropdown-panel a:hover,
.nav-dropdown-panel a.active {
  color: var(--text-primary);
  background: var(--bg-elevated);
}
.nav-dropdown-panel a.active {
  color: var(--green-light);
}
.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.navbar-actions .btn-ghost-nav {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.navbar-actions .btn-ghost-nav:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
}
.navbar-actions .nav-profile-icon {
  width: 38px;
  height: 38px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.navbar-actions .nav-profile-icon i {
  font-size: 1.1rem;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: var(--bg-1);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.mobile-menu a:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
}
.mobile-menu .mobile-cta {
  margin-top: 12px;
  display: flex;
  gap: 10px;
}
.mobile-menu-group {
  padding: 8px 0 12px;
  border-bottom: 1px solid var(--border-subtle);
}
.mobile-menu-group:last-child {
  border-bottom: 0;
}
.mobile-menu-title {
  padding: 8px 14px 4px;
  font-size: 0.68rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}
.mobile-menu-group a {
  display: flex;
  align-items: center;
  gap: 10px;
}
.mobile-menu-group a i {
  width: 16px;
  color: var(--green);
  font-size: 0.8rem;
}

/* ================================================================
   AUTH SYSTEM — Shared styles (nav dropdown, modals, settings)
   ================================================================ */

/* ── Auth Nav User (desktop navbar) ── */
.auth-nav-user {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 10px 4px 4px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s;
  user-select: none;
}
.auth-nav-user:hover { border-color: var(--border); background: var(--bg-elevated); }
.auth-nav-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--green);
  flex-shrink: 0;
}
.auth-nav-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.auth-nav-caret {
  font-size: 0.6rem;
  color: var(--text-muted);
  transition: transform 0.2s;
}
.auth-nav-dropdown.open ~ * .auth-nav-caret,
.auth-nav-user:has(.auth-nav-dropdown.open) .auth-nav-caret { transform: rotate(180deg); }

.auth-nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 210px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.2s, transform 0.2s;
  z-index: 1500;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.auth-nav-dropdown.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.auth-dd-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  background: none;
  border: none;
  width: 100%;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  text-align: left;
  font-family: inherit;
}
.auth-dd-item:hover { background: var(--bg-elevated); color: var(--text-primary); }
.auth-dd-item i { width: 16px; text-align: center; font-size: 0.85rem; }
.auth-dd-sep { height: 1px; background: var(--border); margin: 4px 0; }
.auth-dd-logout { color: var(--red) !important; }
.auth-dd-logout:hover { background: rgba(239,68,68,0.1) !important; }