.nexus-ai-widget {
  color: #303548;
  font-family: Manrope, "Segoe UI", sans-serif;
}

.chat-toggles {
  bottom: 98px;
}

.dropdown-link[data-open-ai-tutor],
.content-nav [data-open-ai-tutor] {
  padding: .5rem 0;
  color: inherit;
  font: inherit;
  text-align: left;
  background: transparent;
  border: 0;
}

.dropdown-link[data-open-ai-tutor] {
  display: block;
  width: 100%;
}

.content-nav [data-open-ai-tutor] {
  color: #3156c6;
  font-weight: 600;
}

.content-nav [data-open-ai-tutor]:hover {
  text-decoration: underline;
}

.nexus-ai-widget *,
.nexus-ai-widget *::before,
.nexus-ai-widget *::after {
  box-sizing: border-box;
}

.nexus-ai-widget button,
.nexus-ai-widget textarea,
.nexus-ai-widget select {
  font: inherit;
}

.nexus-ai-widget button {
  cursor: pointer;
}

.nexus-ai-widget [hidden] {
  display: none !important;
}

.nexus-ai-launcher {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 9998;
  display: flex;
  align-items: center;
  gap: 11px;
  min-height: 62px;
  padding: 9px 15px 9px 10px;
  color: #fff;
  text-align: left;
  background: #292545;
  border: 1px solid rgba(255, 255, 255, .17);
  border-radius: 20px;
  box-shadow: 0 16px 42px rgba(31, 28, 54, .3);
  touch-action: none;
  user-select: none;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  animation: nexus-ai-float 3.2s ease-in-out infinite;
}

.nexus-ai-launcher:hover,
.nexus-ai-launcher:focus-visible {
  background: #37315d;
  box-shadow: 0 20px 48px rgba(31, 28, 54, .38);
  transform: translateY(-4px);
  animation-play-state: paused;
}

.nexus-ai-launcher-mark,
.nexus-ai-mark {
  position: relative;
  display: grid;
  flex: 0 0 auto;
  width: 39px;
  height: 39px;
  place-items: center;
  overflow: visible;
  background: #fff;
  border-radius: 13px;
}

.nexus-ai-launcher-mark img,
.nexus-ai-mark img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 9px;
}

.nexus-ai-status-dot,
.nexus-ai-online-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: #20b486;
  border: 2px solid #fff;
  border-radius: 50%;
}

.nexus-ai-status-dot {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 12px;
  height: 12px;
}

.nexus-ai-launcher-copy strong,
.nexus-ai-launcher-copy small {
  display: block;
}

.nexus-ai-launcher-copy strong {
  font-size: 12px;
  font-weight: 800;
}

.nexus-ai-launcher-copy small {
  margin-top: 2px;
  color: #b9b5cf;
  font-size: 9px;
}

.nexus-ai-launcher-spark {
  margin-left: 4px;
  color: #bfb8ff;
  font-size: 17px;
}

.nexus-ai-backdrop {
  position: fixed;
  z-index: 9999;
  background: rgba(17, 16, 27, .32);
  border: 0;
  inset: 0;
}

.nexus-ai-panel {
  position: fixed;
  z-index: 10000;
  right: 24px;
  bottom: 98px;
  display: flex;
  width: min(760px, calc(100vw - 48px));
  height: min(690px, calc(100dvh - 128px));
  min-height: 420px;
  overflow: hidden;
  background: #f8f8fb;
  border: 1px solid rgba(35, 32, 60, .12);
  border-radius: 25px;
  box-shadow: 0 24px 80px rgba(25, 22, 48, .3);
  transform-origin: bottom right;
  animation: nexus-ai-panel-in .22s cubic-bezier(.2, .8, .2, 1) both;
}

.nexus-ai-sidebar {
  display: flex;
  flex: 0 0 218px;
  flex-direction: column;
  min-width: 0;
  padding: 17px 13px;
  color: #fff;
  background: #211e36;
}

.nexus-ai-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 2px 19px;
}

.nexus-ai-sidebar-brand > span:nth-child(2) {
  min-width: 0;
}

.nexus-ai-sidebar-brand strong,
.nexus-ai-sidebar-brand small {
  display: block;
}

.nexus-ai-sidebar-brand strong {
  font-size: 12px;
  font-weight: 800;
}

.nexus-ai-sidebar-brand small {
  margin-top: 2px;
  color: #aaa6c2;
  font-size: 9px;
}

.nexus-ai-mark {
  width: 34px;
  height: 34px;
  border-radius: 11px;
}

.nexus-ai-mark img {
  width: 29px;
  height: 29px;
}

.nexus-ai-new-chat {
  display: flex;
  min-height: 39px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  background: #536fca;
  border: 0;
  border-radius: 11px;
  box-shadow: 0 8px 20px rgba(57, 78, 157, .28);
  transition: background .16s ease, transform .16s ease;
}

.nexus-ai-new-chat:hover {
  background: #6480da;
  transform: translateY(-1px);
}

.nexus-ai-section-label {
  margin: 22px 8px 8px;
  color: #8d89a2;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.nexus-ai-history {
  min-height: 0;
  flex: 1;
  overflow-y: auto;
}

.nexus-ai-history-item {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  overflow: hidden;
  color: #aaa6bd;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  background: transparent;
  border: 0;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 600;
}

.nexus-ai-history-item:hover,
.nexus-ai-history-item[aria-current="true"] {
  color: #fff;
  background: rgba(255, 255, 255, .1);
}

.nexus-ai-history-empty {
  margin: 4px 8px;
  color: #8d89a2;
  font-size: 10px;
}

.nexus-ai-level-label {
  display: block;
  margin: 15px 4px 7px;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
}

.nexus-ai-level {
  width: 100%;
  min-height: 36px;
  padding: 0 10px;
  color: #fff;
  background: #302b4c;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 9px;
  font-size: 10px;
}

.nexus-ai-main {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
}

.nexus-ai-header {
  display: flex;
  min-height: 62px;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  padding: 0 13px;
  background: #fff;
  border-bottom: 1px solid #e8e8ee;
}

.nexus-ai-heading {
  min-width: 0;
  flex: 1;
}

.nexus-ai-heading strong,
.nexus-ai-heading small {
  display: block;
}

.nexus-ai-heading strong {
  color: #292e40;
  font-size: 12px;
  font-weight: 800;
}

.nexus-ai-heading small {
  margin-top: 4px;
  color: #858b9a;
  font-size: 9px;
}

.nexus-ai-online-dot {
  width: 7px;
  height: 7px;
  margin-right: 4px;
  border: 0;
}

.nexus-ai-preview-label {
  padding: 5px 7px;
  color: #695bb5;
  background: #f0edff;
  border-radius: 7px;
  font-size: 8px;
  font-weight: 800;
  text-transform: uppercase;
}

.nexus-ai-icon-button {
  display: inline-grid;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  place-items: center;
  padding: 0;
  color: #777d8d;
  background: transparent;
  border: 0;
  border-radius: 10px;
  font-size: 20px;
  line-height: 1;
  transition: background .15s ease, color .15s ease;
}

.nexus-ai-icon-button:hover,
.nexus-ai-icon-button[aria-pressed="true"] {
  color: #536fca;
  background: #f0f1f8;
}

.nexus-ai-icon-button svg,
.nexus-ai-send svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.nexus-ai-sidebar-close,
.nexus-ai-history-toggle {
  display: none;
}

.nexus-ai-messages {
  min-height: 0;
  flex: 1;
  overflow-y: auto;
  padding: 20px 17px;
  scroll-behavior: smooth;
}

.nexus-ai-message {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 0 auto 15px;
  animation: nexus-ai-message-in .2s ease both;
}

.nexus-ai-message--user {
  justify-content: flex-end;
}

.nexus-ai-avatar {
  display: grid;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  place-items: center;
  overflow: hidden;
  background: #eaf3fb;
  border-radius: 10px;
}

.nexus-ai-avatar img {
  width: 26px;
  height: 26px;
  object-fit: contain;
}

.nexus-ai-bubble {
  max-width: min(88%, 500px);
  padding: 10px 13px;
  color: #4e5567;
  background: #fff;
  border: 1px solid #e4e4eb;
  border-radius: 16px 16px 16px 4px;
  box-shadow: 0 2px 7px rgba(25, 22, 48, .04);
  font-size: 11px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.nexus-ai-message--user .nexus-ai-bubble {
  color: #fff;
  background: #536fca;
  border-color: #536fca;
  border-radius: 16px 16px 4px 16px;
}

.nexus-ai-bubble p {
  margin: 0 0 9px;
}

.nexus-ai-bubble p:last-child {
  margin-bottom: 0;
}

.nexus-ai-bubble ul,
.nexus-ai-bubble ol {
  margin: 7px 0;
  padding-left: 20px;
}

.nexus-ai-bubble code {
  padding: 1px 4px;
  color: #574db0;
  background: #f0eff9;
  border-radius: 4px;
  font-family: Consolas, monospace;
  font-size: .95em;
}

.nexus-ai-code {
  max-width: 100%;
  margin: 9px 0;
  overflow: auto;
  color: #e1e3ee;
  background: #211e36;
  border-radius: 10px;
}

.nexus-ai-code-label {
  display: block;
  padding: 6px 10px 0;
  color: #aaa6c2;
  font-family: Manrope, "Segoe UI", sans-serif;
  font-size: 9px;
}

.nexus-ai-code pre {
  margin: 0;
  padding: 9px 11px 11px;
  font-size: 10px;
  line-height: 1.55;
}

.nexus-ai-suggestions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin: 5px 0 0 39px;
}

.nexus-ai-suggestion {
  min-height: 44px;
  padding: 8px;
  color: #5d6374;
  text-align: left;
  background: #fff;
  border: 1px solid #e4e4eb;
  border-radius: 10px;
  font-size: 9px;
  font-weight: 700;
  line-height: 1.4;
  transition: border-color .15s ease, background .15s ease;
}

.nexus-ai-suggestion:hover {
  background: #f7f8ff;
  border-color: #c9d2f2;
}

.nexus-ai-typing {
  display: flex;
  gap: 4px;
  align-items: center;
  min-height: 31px;
  padding-left: 40px;
}

.nexus-ai-typing i {
  width: 6px;
  height: 6px;
  background: #7284ce;
  border-radius: 50%;
  animation: nexus-ai-typing 1s infinite ease-in-out;
}

.nexus-ai-typing i:nth-child(2) {
  animation-delay: .14s;
}

.nexus-ai-typing i:nth-child(3) {
  animation-delay: .28s;
}

.nexus-ai-feedback {
  margin: 0;
  padding: 8px 14px;
  color: #a63c49;
  background: #fff5f5;
  border-top: 1px solid #f5d9dc;
  font-size: 10px;
}

.nexus-ai-composer-area {
  flex: 0 0 auto;
  padding: 11px 13px 9px;
  background: #fff;
  border-top: 1px solid #e6e6ec;
}

.nexus-ai-composer {
  padding: 7px 9px 8px;
  background: #fbfbfd;
  border: 1px solid #dedee7;
  border-radius: 15px;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.nexus-ai-composer:focus-within {
  border-color: #8999dc;
  box-shadow: 0 0 0 3px rgba(83, 111, 202, .1);
}

.nexus-ai-composer textarea {
  display: block;
  width: 100%;
  min-height: 42px;
  max-height: 112px;
  resize: vertical;
  padding: 4px;
  color: #303548;
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 11px;
  line-height: 1.55;
}

.nexus-ai-composer textarea::placeholder {
  color: #9ca1ae;
}

.nexus-ai-composer-tools,
.nexus-ai-tool-buttons {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
}

.nexus-ai-tool-buttons {
  justify-content: flex-start;
}

.nexus-ai-hint {
  margin-left: 4px;
  color: #a0a4b0;
  font-size: 8px;
}

.nexus-ai-send {
  display: grid;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background: #536fca;
  border: 0;
  border-radius: 10px;
  box-shadow: 0 5px 12px rgba(83, 111, 202, .22);
  transition: background .15s ease, transform .15s ease;
}

.nexus-ai-send:hover:not(:disabled) {
  background: #405cae;
  transform: translateY(-1px);
}

.nexus-ai-send:disabled {
  cursor: not-allowed;
  opacity: .43;
}

.nexus-ai-attachment {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 7px;
  padding: 4px 7px 4px 11px;
  color: #5363a4;
  background: #f0f2fc;
  border-radius: 9px;
  font-size: 9px;
  font-weight: 700;
}

.nexus-ai-attachment-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nexus-ai-disclaimer {
  margin: 7px 0 0;
  color: #a1a5b0;
  text-align: center;
  font-size: 8px;
}

.nexus-ai-widget [data-voice-input][aria-pressed="true"] {
  color: #bd4343;
  background: #ffe8e8;
  animation: nexus-ai-pulse 1.3s ease-in-out infinite;
}

.nexus-ai-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

@keyframes nexus-ai-float {
  0%, 100% { box-shadow: 0 16px 42px rgba(31, 28, 54, .3); }
  50% { box-shadow: 0 19px 48px rgba(31, 28, 54, .38); }
}

@keyframes nexus-ai-panel-in {
  from { opacity: 0; transform: translateY(12px) scale(.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes nexus-ai-message-in {
  from { opacity: 0; transform: translateY(7px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes nexus-ai-typing {
  0%, 60%, 100% { transform: translateY(0); opacity: .55; }
  30% { transform: translateY(-4px); opacity: 1; }
}

@keyframes nexus-ai-pulse {
  50% { box-shadow: 0 0 0 5px rgba(189, 67, 67, .1); }
}

@media (max-width: 680px) {
  .nexus-ai-launcher {
    right: 15px;
    bottom: 15px;
  }

  .nexus-ai-backdrop:not([hidden]) {
    display: block;
  }

  .nexus-ai-panel:not([hidden]) {
    top: 10px;
    right: 10px;
    bottom: 10px;
    left: 10px;
    width: auto;
    height: auto;
    min-height: 0;
    border-radius: 19px;
    animation-name: nexus-ai-panel-in-mobile;
  }

  .nexus-ai-sidebar {
    position: absolute;
    z-index: 2;
    top: 0;
    bottom: 0;
    left: 0;
    display: none;
    width: min(260px, 85%);
    box-shadow: 14px 0 40px rgba(17, 16, 27, .2);
  }

  .nexus-ai-panel.nexus-ai-history-open .nexus-ai-sidebar {
    display: flex;
  }

  .nexus-ai-sidebar-close,
  .nexus-ai-history-toggle {
    display: inline-grid;
  }

  .nexus-ai-suggestions {
    grid-template-columns: 1fr;
  }

  .nexus-ai-suggestion {
    min-height: 37px;
  }

  .nexus-ai-messages {
    padding: 15px 11px;
  }

  .nexus-ai-composer-area {
    padding: 9px;
  }

  .nexus-ai-hint {
    display: none;
  }
}

@keyframes nexus-ai-panel-in-mobile {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .nexus-ai-widget *,
  .nexus-ai-widget *::before,
  .nexus-ai-widget *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}

@media print {
  .nexus-ai-widget {
    display: none !important;
  }
}