:root {
  --nia-ai-primary: #366CA1;
  --nia-ai-soft: #EDF8F0;
  --nia-ai-surface: #EEEEEE;
}

#nia-ai-site-assistant-root .nia-ai-wrap {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999999;
  font-family: Arial, sans-serif;
}

#nia-ai-site-assistant-root .nia-ai-bubble {
  width: 58px;
  height: 58px;
  border-radius: 999px;
  border: 0;
  background: var(--nia-ai-primary);
  color: #fff;
  font-size: 26px;
  font-weight: 700;
  box-shadow: 0 12px 35px rgba(0,0,0,.22);
  cursor: pointer;
}

#nia-ai-site-assistant-root .nia-ai-panel {
  display: none;
  width: 360px;
  height: 560px;
  max-height: calc(100vh - 48px);
  background: var(--nia-ai-surface);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 18px 50px rgba(0,0,0,.22);
  border: 1px solid var(--nia-ai-soft);
}

#nia-ai-site-assistant-root .nia-ai-wrap.is-open .nia-ai-panel {
  display: flex;
  flex-direction: column;
}

#nia-ai-site-assistant-root .nia-ai-wrap.is-open .nia-ai-bubble { display: none; }

#nia-ai-site-assistant-root .nia-ai-header {
  background: var(--nia-ai-primary);
  color: #fff;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

#nia-ai-site-assistant-root .nia-ai-title {
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
}

#nia-ai-site-assistant-root .nia-ai-close {
  background: rgba(237,248,240,.18);
  color: #fff;
  border: 0;
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  border-radius: 999px;
  font-size: 22px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
}

#nia-ai-site-assistant-root .nia-ai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#nia-ai-site-assistant-root .nia-ai-message {
  max-width: 86%;
  padding: 12px 13px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.45;
  white-space: normal;
  word-break: break-word;
}

#nia-ai-site-assistant-root .nia-ai-message a {
  color: var(--nia-ai-primary);
  text-decoration: underline;
}

#nia-ai-site-assistant-root .nia-ai-message-bot {
  align-self: flex-start;
  background: var(--nia-ai-soft);
  color: #1f1f1f;
  border: 1px solid var(--nia-ai-surface);
}

#nia-ai-site-assistant-root .nia-ai-message-user {
  align-self: flex-end;
  background: var(--nia-ai-primary);
  color: #fff;
}

#nia-ai-site-assistant-root .nia-ai-message-user a { color: #fff; }

#nia-ai-site-assistant-root .nia-ai-message-admin {
  border-left: 4px solid var(--nia-ai-primary);
  background: var(--nia-ai-soft);
}

#nia-ai-site-assistant-root .nia-ai-tools {
  padding: 10px 12px 12px;
  background: var(--nia-ai-surface);
  border-top: 1px solid var(--nia-ai-soft);
}

#nia-ai-site-assistant-root .nia-ai-call-admin {
  display: block;
  width: 100%;
  height: 44px;
  min-height: 44px;
  max-height: 44px;
  border: 1px solid var(--nia-ai-primary);
  background: var(--nia-ai-soft);
  color: var(--nia-ai-primary);
  border-radius: 12px;
  padding: 0 14px;
  font-weight: 700;
  font-size: 14px;
  line-height: 44px;
  text-align: center;
  text-transform: none;
  letter-spacing: normal;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}

#nia-ai-site-assistant-root .nia-ai-call-admin:disabled {
  opacity: .6;
  cursor: wait;
}

#nia-ai-site-assistant-root .nia-ai-form {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px;
  background: var(--nia-ai-surface);
  border-top: 1px solid var(--nia-ai-soft);
}

#nia-ai-site-assistant-root .nia-ai-input {
  flex: 1;
  min-height: 44px;
  max-height: 96px;
  resize: none;
  border: 1px solid var(--nia-ai-primary);
  background: var(--nia-ai-soft);
  border-radius: 12px;
  padding: 11px 12px;
  font-size: 14px;
  line-height: 1.4;
  font-family: inherit;
  outline: none;
  box-sizing: border-box;
}

#nia-ai-site-assistant-root .nia-ai-input:focus {
  border-color: var(--nia-ai-primary);
  box-shadow: 0 0 0 2px rgba(54,108,161,.12);
}

#nia-ai-site-assistant-root .nia-ai-send {
  flex: 0 0 110px;
  width: 110px;
  height: 44px;
  min-height: 44px;
  max-height: 44px;
  align-self: flex-end;
  border: 0;
  border-radius: 12px;
  background: var(--nia-ai-primary);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  text-transform: none;
  letter-spacing: normal;
  padding: 0 14px;
  cursor: pointer;
}

#nia-ai-site-assistant-root .nia-ai-send:disabled {
  opacity: .6;
  cursor: wait;
}

#nia-ai-site-assistant-root .nia-ai-feedback {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--nia-ai-surface);
  font-size: 12px;
  color: #555;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

#nia-ai-site-assistant-root .nia-ai-feedback button {
  border: 1px solid var(--nia-ai-primary);
  background: var(--nia-ai-surface);
  color: var(--nia-ai-primary);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 12px;
  cursor: pointer;
  text-transform: none;
  letter-spacing: normal;
}

#nia-ai-site-assistant-root .nia-ai-feedback button:hover {
  background: var(--nia-ai-soft);
}

@media (max-width: 520px) {
  #nia-ai-site-assistant-root .nia-ai-wrap {
    right: 12px;
    bottom: 12px;
    left: 12px;
  }

  #nia-ai-site-assistant-root .nia-ai-panel {
    width: 100%;
    height: 70vh;
  }

  #nia-ai-site-assistant-root .nia-ai-bubble {
    margin-left: auto;
    display: block;
  }

  #nia-ai-site-assistant-root .nia-ai-send {
    flex-basis: 104px;
    width: 104px;
  }
}

/* 2.9.8: текстовая кнопка поиска и разделение доступа */
#nia-ai-site-assistant-root .nia-ai-bubble {
  width: auto;
  min-width: 158px;
  height: 48px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 10px !important;
  font-size: 13px;
  line-height: 48px;
  letter-spacing: .035em;
  white-space: nowrap;
  text-transform: uppercase;
}


@media (max-width: 520px) {
  #nia-ai-site-assistant-root .nia-ai-bubble {
    min-width: 150px;
    height: 46px;
    min-height: 46px;
    padding: 0 15px;
    font-size: 12px;
    line-height: 46px;
  }
}

/* Компактный виджет используется только для поиска и обращения к администратору. */
#nia-ai-site-assistant-root .nia-ai-tools {
  display: grid;
  gap: 8px;
}

#nia-ai-site-assistant-root .nia-ai-close-admin {
  display: block;
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--nia-ai-primary);
  background: #fff;
  color: var(--nia-ai-primary);
  border-radius: 12px;
  padding: 9px 12px;
  font: 700 13px/1.3 Arial, sans-serif;
  text-transform: none;
  letter-spacing: normal;
  cursor: pointer;
}

#nia-ai-site-assistant-root .nia-ai-close-admin[hidden],
#nia-ai-site-assistant-root .nia-ai-call-admin[hidden] {
  display: none !important;
}

#nia-ai-site-assistant-root .nia-ai-close-admin:disabled {
  opacity: .6;
  cursor: wait;
}

#nia-ai-site-assistant-root .nia-ai-inline-heading {
  display: inline-block;
  margin-top: 4px;
}


/* 2.10.5: индикатор поиска для активных подписчиков */
#nia-ai-site-assistant-root .nia-ai-status {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 10px 14px;
  border-top: 1px solid var(--nia-ai-surface);
  background: var(--nia-ai-soft);
  color: var(--nia-ai-primary);
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  font-weight: 700;
}

#nia-ai-site-assistant-root .nia-ai-status[hidden] {
  display: none !important;
}

#nia-ai-site-assistant-root .nia-ai-spinner {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
  border: 2px solid var(--nia-ai-surface);
  border-top-color: var(--nia-ai-primary);
  border-radius: 50%;
  animation: nia-ai-search-spin .8s linear infinite;
}

@keyframes nia-ai-search-spin {
  to { transform: rotate(360deg); }
}