/* Portal 顶栏：登录 / 注册 / 用户菜单 */

.portal-nav-trailing {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 0;
  padding-left: 12px;
  border-left: 1px solid rgba(0, 0, 0, 0.08);
}

.portal-auth-slot {
  display: flex;
  align-items: center;
}

.portal-auth-guest {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.portal-auth-guest-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.portal-auth-guest[hidden],
.portal-auth-user[hidden] {
  display: none !important;
}

.portal-auth-login {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 2px;
  line-height: 1.2;
}

.portal-auth-login:hover {
  color: var(--text-primary);
}

.portal-auth-register {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  padding: 7px 14px;
  line-height: 1.2;
  border-radius: 999px;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.35);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.portal-auth-register:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.portal-auth-user {
  position: relative;
}

.portal-user-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 4px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.portal-user-trigger:hover {
  border-color: rgba(99, 102, 241, 0.35);
}

.portal-user-trigger[aria-expanded="true"] {
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.portal-user-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.portal-user-avatar [data-avatar-img] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.portal-user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-display);
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.portal-user-chevron {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-left: 2px;
}

.portal-user-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 260px;
  padding: 8px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.12);
  z-index: 200;
}

.portal-user-dropdown[hidden] {
  display: none !important;
}

.portal-user-dropdown-head {
  padding: 12px 12px 10px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  margin-bottom: 6px;
}

.portal-user-dropdown-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-display);
  margin-bottom: 4px;
}

.portal-user-dropdown-email {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  word-break: break-all;
}

.portal-user-dropdown-tier {
  font-size: 12px;
  font-weight: 500;
  color: #4f46e5;
}

.portal-user-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-radius: 8px;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s;
}

.portal-user-menu-item:hover {
  background: #f8fafc;
}

.portal-user-menu-item.danger {
  color: #dc2626;
}

.portal-user-menu-item.danger:hover {
  background: #fef2f2;
}

.portal-user-menu-divider {
  height: 1px;
  background: rgba(0, 0, 0, 0.06);
  margin: 6px 8px;
}

@media (max-width: 768px) {
  .portal-nav-trailing {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    padding-top: 10px;
    margin-top: 6px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .portal-auth-slot {
    width: 100%;
    justify-content: stretch;
  }

  .portal-auth-guest {
    width: 100%;
    align-items: center;
    text-align: center;
  }

  .portal-auth-guest-actions {
    justify-content: center;
    gap: 16px;
  }

  .portal-auth-user {
    width: 100%;
  }

  .portal-user-trigger {
    width: 100%;
    justify-content: flex-start;
  }

  .portal-user-dropdown {
    right: 0;
    left: 0;
    min-width: 0;
  }

}