.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  width: 100%;
  min-height: 56px;
  padding: 12px 30px;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 16px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(227, 229, 231, 0.86);
}

.topbar-logo {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  color: #18191c;
  font-size: 18px;
  font-weight: 900;
}

.topbar-logo .brand-mark {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  display: inline-block;
  border-radius: 8px;
  background: url('/assets/logo-ji.png') center / cover no-repeat;
  box-shadow: none;
}

.topbar-admin-nav {
  position: static;
  min-width: 0;
  margin-right: auto;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.topbar-admin-nav.admin-nav-visible {
  display: flex;
}

.btn-admin-nav {
  height: 34px;
  display: inline-flex;
  box-sizing: border-box;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 8px 15px;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  background: linear-gradient(135deg, #7c5cff, #b564e8 52%, #ee84cb);
  box-shadow: 0 5px 14px rgba(137, 89, 226, 0.25);
  transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
}

.btn-admin-nav:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(137, 89, 226, 0.32);
}

.btn-admin-nav.active {
  box-shadow: inset 0 0 0 2px #fff, 0 5px 14px rgba(137, 89, 226, 0.25);
}

.topbar-user {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-actions .btn-topbar {
  padding: 7px 12px;
  border: 1px solid #e3e5e7;
  border-radius: 8px;
  color: #18191c;
  background: #fff;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s, border 0.2s;
}

.topbar-actions .btn-topbar:hover {
  border-color: #d4d7dd;
  background: #f6f7f8;
}

.topbar-actions .btn-topbar.btn-upgrade {
  border-color: #101114;
  color: #fff;
  background: #101114;
}

.topbar-actions .btn-topbar.btn-upgrade:hover {
  border-color: #2d2f35;
  background: #2d2f35;
}

.topbar-actions .btn-logout {
  padding: 7px 14px;
  border: 1px solid #e3e5e7;
  border-radius: 8px;
  color: #61666d;
  background: #fff;
  font-size: 13px;
  cursor: pointer;
  transition: border 0.2s, color 0.2s, background 0.2s;
}

.topbar-actions .btn-logout:hover {
  border-color: #f1a0aa;
  color: #c2414b;
  background: #fff7f8;
}

@media (max-width: 760px) {
  .topbar {
    padding: 12px 18px;
    flex-wrap: wrap;
    gap: 10px;
  }

  .topbar-admin-nav {
    position: static;
    order: 3;
    width: 100%;
    transform: none;
    justify-content: center;
  }

  .topbar-user {
    gap: 8px;
  }
}