.nm-chat-page {
  --bg-color: #ffffff;
  --chat-bg: #f5f7fb;
  --header-bg: #ffffff;
  --primary-color: #111;
  --text-color: #333;
  --sub-text-color: #888;
  --bubble-sent: #111;
  --text-sent: #fff;
  --bubble-received: #fff;
  --text-received: #333;
  --border-color: #e0e0e0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100%;
  background-color: var(--chat-bg);
}

.nm-chat-page * {
  box-sizing: border-box;
}

.nm-chat-page__header {
  height: 64px;
  background-color: var(--header-bg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 20;
}

.nm-chat-page__header-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.nm-chat-page__back {
  text-decoration: none;
  color: #111;
  font-size: 13px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 7px 11px;
}

.nm-chat-page__back:hover {
  background: #f6f6f6;
}

.nm-chat-page__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #111;
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.nm-chat-page__title h1 {
  margin: 0;
  font-size: 16px;
  line-height: 1.2;
}

.nm-chat-page__title p {
  margin: 2px 0 0;
  font-size: 12px;
  color: #28a745;
}

.nm-chat-page__reset {
  appearance: none;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  color: #222;
  cursor: pointer;
}

.nm-chat-page__reset:hover {
  background: #f7f7f7;
}

.nm-chat-page__modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(17, 17, 17, 0.46);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}

.nm-chat-page__modal-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.nm-chat-page__modal {
  width: min(100%, 420px);
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: #fff;
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.18);
  padding: 18px;
  transform: translateY(8px);
  transition: transform 0.18s ease;
}

.nm-chat-page__modal-backdrop.is-open .nm-chat-page__modal {
  transform: translateY(0);
}

.nm-chat-page__modal-title {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  color: #111;
}

.nm-chat-page__modal-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: #4f5660;
}

.nm-chat-page__modal-actions {
  margin-top: 18px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.nm-chat-page__modal-btn {
  appearance: none;
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.2;
  cursor: pointer;
  min-width: 106px;
}

.nm-chat-page__modal-btn:focus-visible {
  outline: 2px solid #111;
  outline-offset: 2px;
}

.nm-chat-page__modal-btn--ghost {
  background: #fff;
  border-color: var(--border-color);
  color: #222;
}

.nm-chat-page__modal-btn--ghost:hover {
  background: #f7f7f7;
}

.nm-chat-page__modal-btn--danger {
  background: #d93025;
  border-color: #d93025;
  color: #fff;
}

.nm-chat-page__modal-btn--danger:hover {
  background: #c3251d;
  border-color: #c3251d;
}

.nm-chat-page__messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.nm-chat-page__message-row {
  display: flex;
  width: 100%;
}

.nm-chat-page__message-row--assistant {
  justify-content: flex-start;
}

.nm-chat-page__message-row--user {
  justify-content: flex-end;
}

.nm-chat-page__bubble {
  max-width: 70%;
  min-width: 110px;
  padding: 11px 14px;
  border-radius: 12px;
  line-height: 1.6;
  font-size: 14px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  white-space: pre-wrap;
  word-break: break-word;
}

.nm-chat-page__message-row--assistant .nm-chat-page__bubble {
  background: var(--bubble-received);
  color: var(--text-received);
  border-top-left-radius: 2px;
}

.nm-chat-page__message-row--user .nm-chat-page__bubble {
  background: var(--bubble-sent);
  color: var(--text-sent);
  border-top-right-radius: 2px;
}

.nm-chat-page__time {
  margin-top: 6px;
  display: block;
  font-size: 11px;
  color: var(--sub-text-color);
  text-align: right;
}

.nm-chat-page__message-row--user .nm-chat-page__time {
  color: rgba(255, 255, 255, 0.78);
}

.nm-chat-page__sources {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.nm-chat-page__source-link {
  text-decoration: none;
  color: #111;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: #fff;
  font-size: 12px;
  padding: 4px 9px;
}

.nm-chat-page__source-link:hover {
  background: #f7f7f7;
}

.nm-chat-page__typing {
  padding: 0 20px 10px;
  color: #666;
  font-size: 12px;
}

.nm-chat-page__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 20px 12px;
}

.nm-chat-page__chip {
  appearance: none;
  border: 1px solid var(--border-color);
  background: #fff;
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 12px;
  line-height: 1.3;
  color: #111;
  cursor: pointer;
}

.nm-chat-page__chip:hover {
  background: #f7f7f7;
}

.nm-chat-page__input-wrap {
  background: var(--header-bg);
  border-top: 1px solid var(--border-color);
  padding: 12px 14px 14px;
  flex-shrink: 0;
}

.nm-chat-page__form {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  background: #f0f2f5;
  border: 1px solid #e7e8ea;
  border-radius: 22px;
  padding: 10px 12px;
}

.nm-chat-page__input {
  flex: 1;
  border: 0;
  background: transparent;
  resize: none;
  min-height: 24px;
  max-height: 128px;
  outline: none;
  line-height: 24px;
  font-size: 15px;
  font-family: inherit;
  color: #111;
}

.nm-chat-page__send {
  appearance: none;
  border: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-color);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  flex-shrink: 0;
}

.nm-chat-page__send:hover {
  opacity: 0.92;
}

.nm-chat-page__send svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  margin-left: 1px;
}

.nm-chat-page__send:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.nm-chat-page__note {
  max-width: 1100px;
  margin: 8px auto 0;
  font-size: 11px;
  color: #667;
}

@media (max-width: 900px) {
  .nm-chat-page__back {
    display: none;
  }

  .nm-chat-page__bubble {
    max-width: 85%;
  }
}

@media (max-width: 640px) {
  .nm-chat-page__modal-backdrop {
    padding: 14px;
  }

  .nm-chat-page__modal {
    width: 100%;
    border-radius: 12px;
    padding: 16px;
  }

  .nm-chat-page__modal-title {
    font-size: 17px;
  }

  .nm-chat-page__modal-actions {
    flex-direction: column-reverse;
  }

  .nm-chat-page__modal-btn {
    width: 100%;
  }

  .nm-chat-page__header {
    padding: 0 12px;
    height: 58px;
    gap: 8px;
  }

  .nm-chat-page__title h1 {
    font-size: 14px;
  }

  .nm-chat-page__title p {
    font-size: 11px;
  }

  .nm-chat-page__avatar {
    width: 34px;
    height: 34px;
    font-size: 11px;
  }

  .nm-chat-page__reset {
    padding: 7px 10px;
    font-size: 12px;
  }

  .nm-chat-page__messages {
    padding: 12px;
  }

  .nm-chat-page__typing {
    padding: 0 12px 10px;
  }

  .nm-chat-page__quick {
    padding: 0 12px 12px;
    gap: 6px;
  }

  .nm-chat-page__input-wrap {
    padding: 10px 10px 12px;
  }
}