.chat-page {
  height: 100vh;
  overflow: hidden;
}

.chat-page .site-header {
  position: relative;
}

.chat-main {
  height:
    calc(
      100vh - var(--header-height)
    );
  display: grid;
  grid-template-columns:
    300px minmax(0, 1fr);
  overflow: hidden;
  background: var(--background);
}

.chat-sidebar {
  min-width: 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  background: var(--background-soft);
}

.chat-sidebar-header {
  min-height: 61px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
}

.chat-sidebar-title {
  font-size: 15px;
}

.chat-sidebar-count {
  display: inline-grid;
  min-width: 24px;
  height: 24px;
  margin-left: 6px;
  place-items: center;
  padding: 0 6px;
  border-radius: 8px;
  background: var(--surface-light);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
}

.chat-sidebar-close {
  width: 36px;
  height: 36px;
  display: none;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
}

.chat-sidebar-actions {
  padding: 14px;
}

.chat-sidebar-filters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 0 14px 12px;
}

.chat-sidebar-filter {
  min-height: 34px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.chat-sidebar-filter.active {
  border-color:
    rgba(112, 103, 240, 0.48);
  background: var(--primary-soft);
  color: #b9b4ff;
}

.conversation-list {
  min-height: 0;
  flex: 1;
  padding: 0 9px 12px;
  overflow-y: auto;
}

.conversation-loading,
.conversation-empty {
  padding: 28px 16px;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
  text-align: center;
}

.conversation-item {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  margin-bottom: 5px;
  padding: 11px 10px;
  border: 1px solid transparent;
  border-radius: 11px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.conversation-item:hover {
  background: var(--surface);
}

.conversation-item.active {
  border-color:
    rgba(112, 103, 240, 0.45);
  background: var(--primary-soft);
}

.conversation-item-main {
  min-width: 0;
}

.conversation-title {
  display: block;
  overflow: hidden;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conversation-item.active .conversation-title {
  color: var(--text);
}

.conversation-model {
  display: block;
  margin-top: 4px;
  overflow: hidden;
  color: var(--text-muted);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conversation-date {
  color: var(--text-muted);
  font-size: 9px;
  white-space: nowrap;
}

.chat-sidebar-footer {
  padding: 12px 14px;
  border-top: 1px solid var(--border);
}

.chat-sidebar-account {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
  color: var(--text-soft);
  font-size: 12px;
  text-decoration: none;
}

.chat-sidebar-account strong {
  color: var(--text);
}

.chat-sidebar-backdrop {
  display: none;
}

.chat-workspace {
  position: relative;
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows:
    auto auto auto minmax(0, 1fr) auto;
  background:
    radial-gradient(
      circle at 50% 0,
      rgba(112, 103, 240, 0.08),
      transparent 35%
    ),
    var(--background);
}

.chat-toolbar {
  position: relative;
  min-height: 61px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 18px;
  border-bottom: 1px solid var(--border);
  background:
    rgba(19, 31, 43, 0.94);
}

.chat-toolbar-left {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 11px;
}

.chat-mobile-sidebar-button {
  width: 40px;
  height: 40px;
  display: none;
  place-items: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text-soft);
  cursor: pointer;
}

.chat-current-model {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-model-logo {
  width: 39px;
  height: 39px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 11px;
  background:
    linear-gradient(
      145deg,
      #8178ff,
      #5147dc
    );
  color: #ffffff;
  font-size: 12px;
  font-weight: 850;
}

.chat-current-model-text {
  min-width: 0;
}

.chat-current-model-text strong,
.chat-current-model-text span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-current-model-text strong {
  font-size: 13px;
}

.chat-current-model-text span {
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 10px;
}

.chat-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 7px;
}

.chat-toolbar-button,
.chat-toolbar-menu-button {
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}

.chat-toolbar-button:hover,
.chat-toolbar-menu-button:hover:not(:disabled) {
  border-color: var(--border-light);
  color: var(--text);
}

.chat-toolbar-menu-button {
  min-width: 39px;
  padding: 0;
  font-size: 20px;
}

.chat-toolbar-menu-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.conversation-menu {
  position: absolute;
  z-index: 30;
  top: 54px;
  right: 18px;
  width: 205px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.conversation-menu button {
  width: 100%;
  min-height: 39px;
  display: flex;
  align-items: center;
  padding: 0 11px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-soft);
  font-size: 12px;
  text-align: left;
  cursor: pointer;
}

.conversation-menu button:hover {
  background: var(--surface-light);
  color: var(--text);
}

.chat-settings {
  border-bottom: 1px solid var(--border);
  background: var(--background-soft);
}

.chat-settings-content {
  max-width: 900px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin: 0 auto;
  padding: 17px 20px;
}

.chat-setting label {
  display: block;
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 700;
}

.chat-setting p {
  margin: 7px 0 0;
  color: var(--text-muted);
  font-size: 10px;
  line-height: 1.5;
}

.chat-range-row {
  display: grid;
  grid-template-columns: 1fr 44px;
  align-items: center;
  gap: 10px;
  margin-top: 9px;
}

.chat-range-row input {
  width: 100%;
  accent-color: var(--primary);
}

.chat-range-row output {
  min-height: 31px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 11px;
}

.chat-settings-select {
  width: 100%;
  height: 39px;
  margin-top: 9px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 9px;
  outline: none;
  background: var(--surface);
  color: var(--text);
}

.chat-notice {
  margin: 10px 16px 0;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text-soft);
  font-size: 12px;
}

.chat-notice.error {
  border-color:
    rgba(241, 111, 125, 0.42);
  background: var(--danger-soft);
  color: #ffadb6;
}

.chat-notice.warning {
  border-color:
    rgba(243, 189, 85, 0.42);
  background: var(--warning-soft);
  color: #ffd98b;
}

.chat-notice.success {
  border-color:
    rgba(66, 199, 138, 0.42);
  background: var(--success-soft);
  color: #85e1b3;
}

.chat-messages {
  min-height: 0;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.chat-empty-state {
  width: min(720px, calc(100% - 30px));
  min-height: 100%;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  margin: 0 auto;
  padding: 40px 0;
  text-align: center;
}

.chat-empty-logo {
  width: 70px;
  height: 70px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 21px;
  background:
    linear-gradient(
      145deg,
      #8178ff,
      #4e44d4
    );
  box-shadow:
    0 18px 50px
    rgba(112, 103, 240, 0.3);
  color: #ffffff;
  font-size: 27px;
  font-weight: 850;
}

.chat-empty-state h1 {
  margin: 0;
  font-size: 30px;
  letter-spacing: -0.9px;
}

.chat-empty-state p {
  max-width: 570px;
  margin: 12px 0 22px;
  color: var(--text-soft);
  line-height: 1.7;
}

.chat-suggestions {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  margin-top: 25px;
}

.chat-suggestions button {
  min-height: 56px;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text-soft);
  font-size: 12px;
  text-align: left;
  cursor: pointer;
}

.chat-suggestions button:hover {
  border-color: var(--border-light);
  background: var(--surface-light);
  color: var(--text);
}

.message-list {
  width: min(880px, calc(100% - 32px));
  display: grid;
  gap: 19px;
  margin: 0 auto;
  padding: 28px 0 35px;
}

.chat-message {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 11px;
  align-items: flex-start;
}

.chat-message-avatar {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--surface-light);
  color: var(--text);
  font-size: 11px;
  font-weight: 800;
}

.chat-message.assistant .chat-message-avatar {
  background:
    linear-gradient(
      145deg,
      #8178ff,
      #5046d9
    );
  color: #ffffff;
}

.chat-message-content {
  min-width: 0;
}

.chat-message-header {
  min-height: 25px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
}

.chat-message-author {
  color: var(--text);
  font-size: 12px;
  font-weight: 750;
}

.chat-message-time {
  color: var(--text-muted);
  font-size: 9px;
}

.chat-message-text {
  margin-top: 3px;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.75;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.chat-message.user .chat-message-text {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--surface);
}

.chat-message.pending {
  opacity: 0.72;
}

.chat-message.failed .chat-message-text {
  border-color:
    rgba(241, 111, 125, 0.45);
}

.chat-message-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 9px;
}

.chat-thinking {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 30px;
}

.chat-thinking span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #968fff;
  animation:
    chat-thinking 1.2s infinite;
}

.chat-thinking span:nth-child(2) {
  animation-delay: 0.15s;
}

.chat-thinking span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes chat-thinking {
  0%,
  60%,
  100% {
    opacity: 0.3;
    transform: translateY(0);
  }

  30% {
    opacity: 1;
    transform: translateY(-4px);
  }
}

.chat-composer-wrap {
  padding: 11px 16px 13px;
  border-top: 1px solid var(--border);
  background:
    rgba(15, 24, 35, 0.96);
}

.chat-composer {
  width: min(880px, 100%);
  margin: 0 auto;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: var(--surface);
  box-shadow:
    0 10px 30px
    rgba(0, 0, 0, 0.16);
}

.chat-composer:focus-within {
  border-color: var(--primary);
  box-shadow:
    0 0 0 3px
    rgba(112, 103, 240, 0.12);
}

.chat-input {
  width: 100%;
  max-height: 190px;
  min-height: 48px;
  display: block;
  padding: 10px 11px;
  border: 0;
  outline: none;
  resize: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}

.chat-input::placeholder {
  color: var(--text-muted);
}

.chat-composer-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  padding: 3px;
}

.chat-composer-information {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-left: 8px;
  color: var(--text-muted);
  font-size: 9px;
}

.chat-send-button {
  min-height: 39px;
  padding: 0 16px;
  border: 0;
  border-radius: 10px;
  background: var(--primary);
  color: #ffffff;
  font-size: 12px;
  font-weight: 750;
  cursor: pointer;
}

.chat-send-button:hover:not(:disabled) {
  background: var(--primary-hover);
}

.chat-send-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.chat-disclaimer {
  margin-top: 7px;
  color: var(--text-muted);
  font-size: 9px;
  text-align: center;
}

.model-selector,
.chat-dialog {
  position: fixed;
  z-index: 500;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
}

.model-selector-backdrop,
.chat-dialog-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background:
    rgba(4, 8, 13, 0.78);
  backdrop-filter: blur(7px);
}

.model-selector-content {
  position: relative;
  width: min(700px, 100%);
  max-height: min(760px, calc(100vh - 40px));
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--border-light);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.model-selector-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 15px;
  padding: 19px;
  border-bottom: 1px solid var(--border);
}

.model-selector-header h2 {
  margin: 0;
  font-size: 21px;
}

.model-selector-header p {
  margin: 5px 0 0;
  color: var(--text-muted);
  font-size: 11px;
}

.model-selector-close {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--background-soft);
  color: var(--text-muted);
  font-size: 21px;
  cursor: pointer;
}

.model-selector-search {
  padding: 13px 17px;
  border-bottom: 1px solid var(--border);
}

.model-selector-search input {
  width: 100%;
  height: 43px;
  padding: 0 13px;
  border: 1px solid var(--border);
  border-radius: 10px;
  outline: none;
  background: var(--background-soft);
  color: var(--text);
}

.model-selector-search input:focus {
  border-color: var(--primary);
}

.model-selector-list {
  padding: 10px;
  overflow-y: auto;
}

.chat-models-loading {
  padding: 40px;
  color: var(--text-muted);
  text-align: center;
}

.model-selector-item {
  width: 100%;
  display: grid;
  grid-template-columns: 43px 1fr auto;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
  padding: 12px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.model-selector-item:hover {
  border-color: var(--border);
  background: var(--surface-light);
}

.model-selector-item.selected {
  border-color:
    rgba(112, 103, 240, 0.5);
  background: var(--primary-soft);
}

.model-selector-item-text {
  min-width: 0;
}

.model-selector-item-name {
  display: block;
  color: var(--text);
  font-size: 13px;
  font-weight: 750;
}

.model-selector-item-description {
  display: block;
  margin-top: 4px;
  overflow: hidden;
  color: var(--text-muted);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.model-selector-item-price {
  color: #aaa4ff;
  font-size: 10px;
  font-weight: 700;
  text-align: right;
}

.chat-dialog-content {
  position: relative;
  width: min(430px, 100%);
  padding: 23px;
  border: 1px solid var(--border-light);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.chat-dialog-content h2 {
  margin: 0 0 18px;
  font-size: 20px;
}

.chat-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 17px;
}

body.chat-modal-open {
  overflow: hidden;
}

@media (max-width: 900px) {
  .chat-main {
    grid-template-columns: 1fr;
  }

  .chat-sidebar {
    position: fixed;
    z-index: 210;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    width: min(330px, 88vw);
    transform: translateX(-102%);
    transition: transform 0.22s ease;
    box-shadow:
      20px 0 60px
      rgba(0, 0, 0, 0.35);
  }

  .chat-sidebar.open {
    transform: translateX(0);
  }

  .chat-sidebar-close {
    display: grid;
  }

  .chat-sidebar-backdrop {
    position: fixed;
    z-index: 200;
    inset: var(--header-height) 0 0;
    display: block;
    border: 0;
    background:
      rgba(3, 6, 10, 0.7);
  }

  .chat-mobile-sidebar-button {
    display: grid;
  }
}

@media (max-width: 650px) {
  .chat-toolbar {
    padding: 8px 10px;
  }

  .chat-current-model-text {
    max-width: 145px;
  }

  .chat-toolbar-button {
    width: 39px;
    padding: 0;
    overflow: hidden;
    color: transparent;
    font-size: 0;
  }

  .chat-toolbar-button::after {
    color: var(--text-soft);
    font-size: 17px;
    content: "⚙";
  }

  [data-open-model-selector]::after {
    content: "AI";
    font-size: 10px;
    font-weight: 800;
  }

  .chat-settings-content {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .chat-empty-state h1 {
    font-size: 26px;
  }

  .message-list {
    width: calc(100% - 22px);
    padding-top: 19px;
  }

  .chat-message {
    grid-template-columns:
      32px minmax(0, 1fr);
    gap: 8px;
  }

  .chat-message-avatar {
    width: 32px;
    height: 32px;
  }

  .chat-message-text {
    font-size: 13px;
  }

  .chat-composer-wrap {
    padding: 8px 8px 10px;
  }

  .chat-composer-information span:last-child {
    display: none;
  }

  .model-selector {
    align-items: end;
    padding: 0;
  }

  .model-selector-content {
    width: 100%;
    max-height: 90vh;
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
    border-radius: 20px 20px 0 0;
  }

  .model-selector-item {
    grid-template-columns: 40px 1fr;
  }

  .model-selector-item-price {
    grid-column: 2;
    text-align: left;
  }

  .chat-dialog {
    padding: 14px;
  }
}