/* Shared Bootstrap 5 shell for the private chat workspace.
   Chat aliases intentionally inherit the public site's design tokens. */

:root {
  --chat-bg: var(--dark-bg, #071521);
  --chat-surface: var(--dark-bg-alt, #0f2132);
  --chat-surface-2: #152c40;
  --chat-surface-3: #1d3850;
  --chat-surface-elevated: #234158;
  --chat-border: var(--shell-border, rgba(148, 177, 201, 0.18));
  --chat-border-strong: rgba(var(--primary-rgb, 15, 159, 182), 0.3);
  --chat-blue: var(--accent-color, #2956d7);
  --chat-blue-2: #7899ef;
  --chat-blue-hover: var(--accent-dark, #1c3fa5);
  --chat-cyan: var(--primary-color, #0f9fb6);
  --chat-green: #54bd91;
  --chat-amber: #e3b456;
  --chat-red: #e47b89;
  --chat-text: var(--text-light, #f7fbff);
  --chat-text-soft: var(--text-inverse, #dbe7f2);
  --chat-text-muted: #b7c8d8;
  --chat-text-dim: #8fa5b8;
  --chat-text-inverse: var(--dark-bg, #071521);
  --chat-text-on-primary: var(--text-light, #f7fbff);
  --chat-primary-gradient: var(--primary-gradient, linear-gradient(135deg, #0f9fb6 0%, #2956d7 100%));
  --chat-shadow: 0 18px 48px rgba(7, 21, 33, 0.32);
  --chat-radius: 8px;
  --chat-sidebar: 288px;
  --chat-header: 64px;
  --chat-surface-hover: rgba(var(--primary-rgb, 15, 159, 182), 0.08);
  --chat-surface-active: rgba(var(--primary-rgb, 15, 159, 182), 0.14);
  --chat-focus-ring: rgba(var(--primary-rgb, 15, 159, 182), 0.46);
  --chat-input-bg: #10273a;
  --chat-overlay: rgba(7, 21, 33, 0.78);
  --bs-body-bg: var(--chat-bg);
  --bs-body-color: var(--chat-text);
  --bs-border-color: var(--chat-border);
  --bs-primary: var(--chat-cyan);
  --bs-primary-rgb: var(--primary-rgb, 15, 159, 182);
  --bs-secondary-bg: var(--chat-surface-2);
  --bs-tertiary-bg: var(--chat-surface-3);
  --bs-border-radius: var(--chat-radius);
  --bs-font-sans-serif: var(--font-body, "Manrope", sans-serif);
}

[x-cloak] {
  display: none !important;
}

html,
body {
  background: var(--chat-bg);
}

body::before {
  background-image:
    linear-gradient(rgba(var(--primary-rgb, 15, 159, 182), 0.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--primary-rgb, 15, 159, 182), 0.026) 1px, transparent 1px),
    radial-gradient(circle at 82% 8%, rgba(var(--accent-rgb, 41, 86, 215), 0.1), transparent 28rem);
  background-size: 48px 48px, 48px 48px, auto;
  background-repeat: repeat, repeat, no-repeat;
  opacity: 0.32;
}

.chat-shell {
  display: grid;
  grid-template-columns: var(--chat-sidebar) minmax(0, 1fr);
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  z-index: auto;
}

.chat-sidebar.offcanvas-lg {
  width: var(--chat-sidebar);
  min-height: 0;
  color: var(--chat-text);
  border-right: 1px solid var(--chat-border);
  background: var(--shell-bg-strong, rgba(7, 21, 33, 0.96));
  box-shadow: none;
}

.chat-sidebar-frame {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 0;
  overflow: hidden;
}

.chat-sidebar-head {
  display: flex;
  align-items: center;
  min-height: var(--chat-header);
  padding: 0 14px 0 18px;
  border-bottom: 1px solid var(--chat-border);
}

.chat-brand {
  flex: 0 0 var(--chat-header);
  min-width: 0;
  height: var(--chat-header);
  padding: 0 18px;
  border-bottom: 1px solid var(--chat-border);
}

.chat-sidebar-head .chat-brand {
  flex: 1 1 auto;
  height: 100%;
  padding: 0;
  border: 0;
}

.chat-brand-copy {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 8px;
}

.chat-brand-name {
  letter-spacing: 0.04em;
}

.chat-sidebar-head .btn-close {
  flex: 0 0 auto;
  margin-left: 8px;
}

.chat-sidebar-close {
  position: absolute;
  top: 20px;
  right: 14px;
  z-index: 2;
}

.chat-navigation {
  flex: 0 0 auto;
  display: grid;
  gap: 12px;
  padding: 14px;
}

.chat-primary-action {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  color: var(--chat-text-on-primary);
  border: 1px solid transparent;
  background: var(--chat-primary-gradient);
  box-shadow: 0 12px 26px rgba(var(--primary-rgb, 15, 159, 182), 0.18);
  font-weight: 700;
}

.chat-primary-action:hover,
.chat-primary-action:focus-visible {
  color: var(--chat-text-on-primary);
  border-color: transparent;
  background: var(--chat-primary-gradient);
  box-shadow: 0 16px 32px rgba(var(--primary-rgb, 15, 159, 182), 0.26);
}

.chat-nav-list {
  display: grid;
  gap: 3px;
}

.chat-nav-link {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 11px;
  color: var(--chat-text-muted);
  border: 1px solid transparent;
  border-radius: var(--chat-radius);
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 600;
}

.chat-nav-link svg {
  flex: 0 0 auto;
}

.chat-nav-link:hover,
.chat-nav-link:focus-visible {
  color: var(--chat-text);
  border-color: var(--chat-border);
  background: var(--chat-surface-hover);
}

.chat-nav-link.active {
  color: var(--chat-text);
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.26);
  background: rgba(var(--primary-rgb, 15, 159, 182), 0.12);
}

.chat-main {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: var(--chat-header) minmax(0, 1fr) auto;
  background: #061521;
}

.chat-header {
  position: relative;
  z-index: 20;
  min-width: 0;
  height: var(--chat-header);
  min-height: var(--chat-header);
  padding: 0 22px;
  border-bottom: 1px solid var(--chat-border);
  background: rgba(15, 33, 50, 0.97);
  flex-wrap: nowrap;
}

.chat-title-wrap,
.chat-title-copy {
  min-width: 0;
}

.chat-title-wrap {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
}

.chat-title-copy {
  flex: 1 1 auto;
  display: grid;
  gap: 2px;
  overflow: hidden;
}

.chat-title {
  color: var(--chat-text);
  font-size: 0.95rem;
  letter-spacing: 0;
}

.chat-subtitle {
  color: var(--chat-text-dim);
  font-size: 0.72rem;
}

.chat-header-controls {
  flex: 0 0 auto;
  min-width: 0;
  flex-wrap: nowrap;
}

.chat-menu-toggle,
.btn-icon {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  color: var(--chat-text);
  border: 1px solid var(--chat-border);
  background: var(--chat-surface);
}

.chat-menu-toggle:hover,
.chat-menu-toggle:focus-visible,
.btn-icon:hover,
.btn-icon:focus-visible {
  color: var(--chat-text);
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.5);
  background: var(--chat-surface-2);
}

.mobile-sidebar-toggle {
  display: none;
}

.chat-messages-scroll {
  min-width: 0;
  min-height: 0;
  background: rgba(6, 21, 33, 0.78);
  overscroll-behavior: contain;
}

.chat-sidebar > .chat-sidebar-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 12px;
  overflow: hidden;
}

.chat-sidebar-actions {
  flex: 0 0 auto;
  gap: 3px;
}

.chat-sidebar-actions .chat-new-btn {
  min-height: 40px;
  justify-content: flex-start;
  padding: 8px 10px;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  font-size: 0.84rem;
}

.chat-sidebar-actions .chat-new-btn:first-child {
  justify-content: center;
  margin-bottom: 8px;
  color: var(--chat-text-on-primary);
  border-color: transparent;
  background: var(--chat-primary-gradient);
  box-shadow: 0 10px 22px rgba(var(--primary-rgb, 15, 159, 182), 0.16);
}

.sidebar-section-spacer {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  margin-top: 10px;
}

.chat-conversations-toggle {
  flex: 0 0 auto;
}

.chat-conversations-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 6px;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.chat-history-tools {
  flex: 0 0 auto;
  position: sticky;
  top: 0;
  z-index: 4;
  display: grid;
  gap: 8px;
  padding: 2px 0 10px;
  background: var(--shell-bg-strong, rgba(7, 21, 33, 0.96));
}

.chat-history-search-wrap {
  position: relative;
}

.chat-history-search-wrap > svg {
  position: absolute;
  top: 50%;
  left: 10px;
  z-index: 1;
  color: var(--chat-text-dim);
  transform: translateY(-50%);
  pointer-events: none;
}

.chat-history-search {
  min-height: 38px;
  padding-left: 34px;
  color: var(--chat-text);
  border-color: var(--chat-border);
  background: var(--chat-surface);
}

.chat-history-search::placeholder {
  color: var(--chat-text-dim);
}

.chat-history-view-switch {
  width: 100%;
  padding: 3px;
  border: 1px solid var(--chat-border);
  border-radius: var(--chat-radius);
  background: var(--chat-surface-2);
}

.chat-history-view-switch .btn {
  flex: 1;
  color: var(--chat-text-muted);
  border: 0;
  border-radius: 5px !important;
  font-size: 0.76rem;
  font-weight: 700;
}

.chat-history-view-switch .btn.active {
  color: var(--chat-text);
  background: var(--chat-surface-3);
}

.chat-history-list--recent {
  flex: 0 0 auto;
  padding-bottom: 8px;
}

.chat-history-row--modern {
  grid-template-columns: minmax(0, 1fr) 34px;
  min-height: 54px;
  margin-bottom: 3px;
}

.chat-history-item--with-meta {
  display: grid;
  gap: 3px;
  padding: 7px 9px;
}

.chat-history-item-title,
.chat-history-item-meta {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-history-item-title {
  color: var(--chat-text-soft);
  font-size: 0.8rem;
  font-weight: 650;
}

.chat-history-item-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--chat-text-dim);
  font-size: 0.66rem;
}

.chat-history-menu-toggle {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  padding: 0;
  color: var(--chat-text-muted);
  border: 0;
}

.chat-history-menu-toggle:hover,
.chat-history-menu-toggle:focus-visible,
.chat-history-menu-toggle[aria-expanded="true"] {
  color: var(--chat-text);
  background: var(--chat-surface-3);
}

.chat-conversation-menu {
  width: 220px;
  max-height: min(420px, 70vh);
  overflow-y: auto;
  color: var(--chat-text);
  border-color: var(--chat-border-strong);
  background: var(--chat-surface-elevated);
  box-shadow: var(--chat-shadow);
}

.chat-conversation-menu .dropdown-item {
  color: var(--chat-text-soft);
  font-size: 0.8rem;
}

.chat-conversation-menu .dropdown-item:hover,
.chat-conversation-menu .dropdown-item:focus,
.chat-conversation-menu .dropdown-item.active {
  color: var(--chat-text);
  background: rgba(var(--primary-rgb, 15, 159, 182), 0.13);
}

.chat-conversation-menu .dropdown-header {
  color: var(--chat-text-dim);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.chat-history-more {
  width: 100%;
  margin-top: 5px;
  color: var(--chat-text-muted);
  border: 1px dashed var(--chat-border);
  font-size: 0.74rem;
}

.chat-history-more:hover,
.chat-history-more:focus-visible {
  color: var(--chat-text);
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.5);
  background: rgba(var(--primary-rgb, 15, 159, 182), 0.08);
}

.chat-compact-settings {
  display: none;
}

.chat-settings-menu {
  width: min(340px, calc(100vw - 24px));
  padding: 14px;
  color: var(--chat-text);
  border-color: var(--chat-border-strong);
  background: var(--chat-surface-elevated);
  box-shadow: var(--chat-shadow);
}

.chat-settings-field {
  display: grid;
  gap: 5px;
  margin-bottom: 12px;
  color: var(--chat-text-muted);
  font-size: 0.72rem;
  font-weight: 700;
}

.chat-settings-field:last-child {
  margin-bottom: 0;
}

.chat-settings-field .form-select {
  color: var(--chat-text);
  border-color: var(--chat-border);
  background-color: var(--chat-surface);
}

.notification-panel {
  width: min(320px, calc(100vw - 24px));
}

.chat-messages {
  width: min(980px, 100%);
}

.message-card {
  max-width: min(840px, 100%);
  border-width: 1px;
  border-color: rgba(148, 177, 201, 0.34);
  border-radius: var(--chat-radius);
  background: #17344a;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
}

.message.assistant .message-card {
  width: min(840px, 100%);
}

.message.user .message-card {
  max-width: min(720px, 88%);
  border-color: rgba(120, 153, 239, 0.7);
  background: linear-gradient(135deg, rgba(41, 86, 215, 0.72), rgba(15, 159, 182, 0.5));
  box-shadow: 0 10px 26px rgba(10, 41, 104, 0.35);
}

.message-content {
  color: #f7fbff;
}

.message-content a {
  color: #a7e8f2;
}

.message-card > .message-actions + :where(div, .tool-stack) {
  margin-top: 30px;
}

.message-actions {
  gap: 4px;
}

.message-actions .icon-btn {
  width: 30px;
  height: 30px;
  background: var(--chat-surface-3);
}

.thinking-block {
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.3);
  border-left: 3px solid var(--chat-cyan);
  background: rgba(var(--primary-rgb, 15, 159, 182), 0.06);
  box-shadow: none;
}

.thinking-body {
  max-height: min(420px, 55vh);
  overflow: auto;
  color: var(--chat-text-muted);
  background: rgba(15, 42, 54, 0.72);
}

.tool-card {
  border-color: var(--chat-border);
  border-radius: var(--chat-radius);
  background: var(--chat-surface-2);
  box-shadow: none;
}

.tool-card:hover {
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.36);
  box-shadow: none;
}

.tool-status.running {
  color: var(--chat-text-soft);
  background: rgba(var(--primary-rgb, 15, 159, 182), 0.16);
}

.chat-input-wrap {
  padding: 12px clamp(12px, 2.2vw, 28px) max(12px, env(safe-area-inset-bottom));
  background: rgba(11, 29, 44, 0.98);
}

.input-shell {
  min-height: 56px;
  border-width: 1px;
  border-radius: var(--chat-radius);
  background: var(--chat-input-bg);
  box-shadow: 0 10px 28px rgba(7, 21, 33, 0.22);
}

.input-shell:focus-within {
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.65);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb, 15, 159, 182), 0.14);
}

.chat-input-editor {
  min-height: 26px;
  max-height: min(180px, 30vh);
}

.send-btn {
  background: var(--chat-primary-gradient);
  box-shadow: 0 8px 18px rgba(var(--primary-rgb, 15, 159, 182), 0.18);
}

.send-btn:hover:not(:disabled) {
  background: var(--chat-primary-gradient);
  box-shadow: 0 10px 22px rgba(var(--primary-rgb, 15, 159, 182), 0.26);
}

.stop-btn {
  background: #b93d55;
}

.chat-header-btn,
.model-select,
.chat-conversations-toggle,
.chat-history-state,
.chat-history-title-input,
.chat-theme-group,
.chat-theme-dropdown,
.notification-panel,
.video-toast {
  color: var(--chat-text);
  border-color: var(--chat-border);
  background: var(--chat-surface);
  box-shadow: none;
}

.chat-header-btn:hover,
.chat-conversations-toggle:hover {
  color: var(--chat-text);
  border-color: var(--chat-border-strong);
  background: var(--chat-surface-2);
  box-shadow: none;
  transform: none;
}

.chat-header-btn--danger {
  color: #ffc3ca;
  border-color: rgba(223, 123, 137, 0.45);
}

.chat-header-btn--danger:hover {
  color: #ffe7ea;
  border-color: var(--chat-red);
  background: rgba(130, 42, 58, 0.46);
}

.tool-guide-card {
  border-color: var(--chat-border);
  background: var(--chat-surface);
  background-image: none;
  box-shadow: 0 8px 22px rgba(7, 21, 33, 0.16);
}

.tool-guide-example,
.chat-empty-cv-link a {
  color: #73d3df;
}

.chat-empty-cv-link a {
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.36);
  background: rgba(var(--primary-rgb, 15, 159, 182), 0.1);
}

.chat-empty-cv-link a:hover {
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.58);
  background: rgba(var(--primary-rgb, 15, 159, 182), 0.16);
  box-shadow: none;
}

.suggestion-chip {
  background: var(--chat-surface);
}

.suggestion-chip:hover {
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.5);
  background: var(--chat-surface-2);
  box-shadow: none;
}

.chat-history-row:hover,
.chat-history-row.active {
  border-color: var(--chat-border);
  background: var(--chat-surface-2);
}

.chat-theme-header:hover,
.notification-item:hover,
.toolbar-btn:hover:not(:disabled) {
  background: var(--chat-surface-hover);
}

.chat-history-title-input,
.chat-settings-field .form-select,
.model-select {
  background-color: var(--chat-surface-2);
}

.chat-theme-dropdown,
.notification-panel,
.video-toast {
  background: var(--chat-surface-2);
}

.notification-panel-header,
.tool-details {
  border-color: var(--chat-border);
}

.attach-btn {
  color: var(--chat-text-muted);
  border-color: var(--chat-border);
  background: var(--chat-surface-2);
}

.file-preview,
.message-attachment-chip,
.public-message-counter {
  color: var(--chat-text-soft);
  border-color: rgba(var(--primary-rgb, 15, 159, 182), 0.32);
  background: rgba(var(--primary-rgb, 15, 159, 182), 0.1);
}

.tool-code,
.message-content pre,
.prompt-preview {
  background: #081824;
}

.shared-page {
  min-height: 100vh;
  color: var(--chat-text);
  background: var(--chat-bg) !important;
}

.shared-wrap {
  max-width: 980px !important;
}

.shared-hero,
.shared-message {
  border-color: var(--chat-border) !important;
  background: var(--chat-surface) !important;
  box-shadow: none !important;
}

.shared-title,
.shared-message-content {
  color: var(--chat-text) !important;
}

.shared-meta,
.shared-message-header {
  color: var(--chat-text-muted) !important;
}

:where(a, button, input, select, textarea, [contenteditable="true"]):focus-visible {
  outline: 2px solid var(--chat-cyan);
  outline-offset: 2px;
  box-shadow: none;
}

@media (min-width: 992px) {
  .chat-sidebar.offcanvas-lg {
    position: relative;
    inset: auto;
    visibility: visible !important;
    transform: none !important;
    background-color: var(--dark-bg, #071521) !important;
  }
}

@media (max-width: 1199.98px) {
  .chat-compact-settings {
    display: block;
  }

  .chat-header-controls > .media-model-select,
  .chat-header-controls > .prompt-select {
    display: none !important;
  }
}

@media (max-width: 991.98px) {
  .chat-shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .chat-sidebar.offcanvas-lg {
    position: fixed;
    z-index: var(--bs-offcanvas-zindex, 1045);
    inset: 0 auto 0 0;
    width: min(320px, 88vw);
    transform: translateX(-100%);
    transition: none;
  }

  .chat-sidebar.offcanvas-lg.show,
  .chat-sidebar.offcanvas-lg.showing {
    transform: none !important;
  }

  .mobile-sidebar-toggle {
    display: inline-grid;
  }

  .chat-header {
    height: 58px;
    min-height: 58px;
    padding: 0 12px;
    gap: 8px;
  }

  .chat-title-copy {
    max-width: none;
  }

  .chat-header-controls {
    gap: 6px;
  }

  .chat-header-controls .notification-bell,
  .chat-header-controls .chat-header-btn--danger {
    width: 42px;
    height: 42px;
    min-width: 42px;
    padding: 0;
    justify-content: center;
  }

  .chat-header-controls .chat-header-btn--danger span {
    display: none;
  }

  .chat-title-wrap .chat-title,
  .chat-title-wrap .chat-subtitle {
    display: block;
  }

  .chat-title,
  .chat-subtitle {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

@media (max-width: 575.98px) {
  .chat-title-copy {
    max-width: none;
  }

  .chat-title-wrap .chat-subtitle {
    display: none;
  }

  .chat-header-controls > .model-select {
    display: none;
  }

  .video-pending-badge {
    padding: 5px 7px;
  }

  .chat-messages-scroll {
    padding-inline: 8px;
  }

  .message {
    grid-template-columns: minmax(0, 1fr);
  }

  .message-avatar {
    display: none;
  }

  .message-card,
  .message.assistant .message-card {
    width: 100%;
    max-width: 100%;
    padding: 11px 12px;
  }

  .message.user .message-card {
    width: auto;
    max-width: 92%;
  }

  .message-actions {
    opacity: 1;
  }

  .tool-header {
    grid-template-columns: 28px minmax(0, 1fr) auto 16px;
    gap: 7px;
  }

  .tool-status {
    max-width: 76px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .chat-input-wrap {
    padding: 8px 8px max(8px, env(safe-area-inset-bottom));
  }

  .input-shell {
    padding: 7px;
  }

  .editor-toolbar {
    gap: 4px;
    overflow-x: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}