/* UI-811 integrations are intentionally additive and load after the base shell. */

.icon-button,
.sidebar-tool-button,
.composer-send,
.ui811-history-menu {
  display: inline-grid;
  place-items: center;
  padding: 0;
  line-height: 0;
}

.icon-button > svg,
.sidebar-tool-button > svg,
.composer-send > svg,
.ui811-history-menu > svg {
  display: block;
  margin: auto;
}

.icon-button:hover,
.sidebar-tool-button:hover,
.composer-send:hover,
.ui811-history-menu:hover {
  background-position: center;
}

.ui811-toast {
  position: fixed;
  z-index: 90;
  left: 50%;
  bottom: max(24px, env(safe-area-inset-bottom));
  max-width: min(520px, calc(100vw - 32px));
  padding: 11px 16px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-button);
  color: var(--ink);
  background: var(--surface-raised);
  box-shadow: var(--shadow-popup);
  transform: translateX(-50%);
}

.ui811-menu {
  position: fixed;
  z-index: 100;
  width: 208px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-popup);
  background: var(--surface-raised);
  box-shadow: var(--shadow-popup);
}

.ui811-menu button {
  display: block;
  width: 100%;
  padding: 10px 11px;
  border: 0;
  border-radius: var(--radius-button);
  color: var(--ink);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.ui811-menu button:hover,
.ui811-menu button:focus-visible {
  background: var(--surface-subtle);
}

.ui811-menu button.is-danger,
.ui811-danger-button {
  color: var(--color-error);
}

.ui811-modal {
  width: min(520px, calc(100vw - 32px));
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  color: var(--ink);
  background: var(--surface-raised);
  box-shadow: var(--shadow-popup);
}

.ui811-modal::backdrop {
  background: rgb(12 18 24 / 42%);
  backdrop-filter: blur(2px);
}

.ui811-modal-form {
  margin: 0;
}

.ui811-modal-form header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 18px 20px 12px;
}

.ui811-modal-form h2 {
  margin: 0;
  font-size: 18px;
}

.ui811-modal-close {
  width: 36px;
  height: 36px;
  font-size: 22px;
}

.ui811-modal-body {
  padding: 4px 20px 18px;
  color: var(--muted);
}

.ui811-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 20px 18px;
  border-top: 1px solid var(--border);
}

.ui811-history-filters {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius-button);
  background: var(--surface-subtle);
}

.ui811-history-filters button {
  min-height: 36px;
  padding: 7px 12px;
  border: 0;
  border-radius: calc(var(--radius-button) - 2px);
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.ui811-history-filters button[aria-pressed="true"] {
  color: var(--ink);
  background: var(--surface-raised);
  box-shadow: var(--shadow-control);
}

.ui811-history-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 36px;
  align-items: center;
  gap: 8px;
  padding: 10px 8px 10px 12px;
  border-bottom: 1px solid var(--border);
}

.ui811-history-row:last-child {
  border-bottom: 0;
}

.ui811-history-row.is-pinned {
  border-left: 3px solid var(--color-accent);
}

.ui811-history-row.is-archived {
  opacity: 0.78;
}

.ui811-history-open {
  min-width: 0;
  padding: 6px 4px;
  border: 0;
  color: var(--ink);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.ui811-history-open strong,
.ui811-history-open span,
.ui811-history-open small {
  display: block;
}

.ui811-history-open strong {
  overflow: hidden;
  font-size: 15px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ui811-history-open span {
  overflow: hidden;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ui811-history-open small {
  margin-top: 7px;
  color: var(--quiet);
  font-size: 11px;
}

.ui811-history-menu {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: var(--radius-button);
  color: var(--muted);
  background: transparent;
  font-size: 16px;
}

.ui811-history-menu:hover,
.ui811-history-menu:focus-visible {
  color: var(--ink);
  background: var(--surface-subtle);
}

.ui811-header-history-search svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
}

.ui811-home-history {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

.ui811-nav-history {
  margin: 12px 4px 0;
}

.ui811-nav-history > p {
  margin: 0 8px 7px;
  color: var(--quiet);
  font-size: 11px;
}

.ui811-nav-history-list {
  display: grid;
  gap: 2px;
}

.ui811-nav-history-list button {
  overflow: hidden;
  padding: 8px 10px;
  border: 0;
  border-radius: var(--radius-button);
  color: var(--muted);
  background: transparent;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.ui811-nav-history-list button:hover,
.ui811-nav-history-list button:focus-visible {
  color: var(--ink);
  background: var(--surface-subtle);
}

.ui811-nav-history-empty {
  margin: 0;
  padding: 8px 10px;
  color: var(--quiet);
  font-size: 11px;
}

.ui811-role-student[data-ui811-sidebar="collapsed"] .ui811-nav-history {
  display: none;
}

body.ui811-role-student [data-view="account"] .home-context,
body.ui811-role-student [data-view="account"] .home-learning,
body.ui811-role-student [data-view="account"] .home-destinations,
body.ui811-role-student [data-view="account"] .account-actions,
body.ui811-role-student [data-view="account"] .account-plan,
body.ui811-role-student [data-view="account"] .compact-identity,
body.ui811-role-student [data-view="account"] .product-home-context,
body.ui811-role-student [data-view="account"] .product-home-content {
  display: none !important;
}

body.ui811-role-student [data-view="account"] {
  display: grid;
  align-content: center;
  min-height: min(720px, calc(100vh - 180px));
}

body.ui811-role-student [data-view="account"] .home-intro {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

body.ui811-role-student [data-view="account"] .home-composer {
  width: min(760px, 100%);
  margin: 22px auto 0;
}

body.ui811-role-student [data-view="account"] .home-intro h1 {
  font-size: clamp(32px, 4vw, 54px);
}

.ui811-teacher-profile {
  display: grid;
  gap: 18px;
}

.ui811-profile-actions,
.ui811-profile-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.ui811-profile-status {
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-button);
  color: var(--muted);
  background: var(--surface-subtle);
  font-size: 12px;
}

.ui811-profile-status[data-status="active"] {
  color: var(--color-success);
  border-color: color-mix(in srgb, var(--color-success) 34%, var(--border));
}

.ui811-profile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.ui811-profile-card {
  min-width: 0;
  margin: 0;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.ui811-profile-card.is-active {
  border-color: color-mix(in srgb, var(--color-success) 25%, var(--border));
}

.ui811-profile-card h3 {
  margin: 0 0 14px;
  font-size: 15px;
}

.ui811-profile-card > div {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 10px;
  padding: 9px 0;
  border-top: 1px solid var(--border);
}

.ui811-profile-card dt {
  color: var(--quiet);
  font-size: 12px;
}

.ui811-profile-card dd {
  min-width: 0;
  margin: 0;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.ui811-profile-card dd.is-empty {
  color: var(--quiet);
}

.ui811-profile-form {
  display: grid;
  gap: 13px;
}

.ui811-profile-form label {
  display: grid;
  gap: 6px;
  color: var(--ink);
  font-size: 13px;
}

.ui811-profile-form textarea {
  width: 100%;
  min-height: 82px;
  resize: vertical;
}

.ui811-settings-stack {
  display: grid;
  gap: 14px;
}

.ui811-settings-field {
  display: grid;
  gap: 7px;
}

.ui811-settings-field > span {
  color: var(--ink);
  font-weight: 600;
}

.ui811-settings-field textarea {
  width: 100%;
  min-height: 150px;
  resize: vertical;
}

.ui811-settings-field small,
.ui811-setting-row small {
  color: var(--quiet);
  font-size: 11px;
  line-height: 1.6;
}

.ui811-setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.ui811-setting-row span {
  display: grid;
  gap: 4px;
}

.ui811-memory-list {
  display: grid;
  gap: 6px;
}

.ui811-memory-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 36px;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.ui811-memory-row span {
  overflow-wrap: anywhere;
}

.ui811-settings-empty {
  margin: 0;
  padding: 18px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-button);
  color: var(--quiet);
  text-align: center;
}

.ui811-memory-add {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.ui811-style-choices {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.ui811-style-choices button {
  display: grid;
  gap: 6px;
  min-height: 86px;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-button);
  color: var(--ink);
  background: var(--surface);
  text-align: left;
  cursor: pointer;
}

.ui811-style-choices button[aria-pressed="true"] {
  border-color: var(--color-accent);
  background: var(--accent-soft);
}

.ui811-style-choices small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.teacher-overview-panel .ui811-overview-upload-note,
.teacher-workspace-panel .ui811-muted {
  color: var(--quiet);
  font-size: 12px;
}

.teacher-activity-list > li:not(.attention):not([data-kind="attention"]) {
  border-left-color: transparent;
}

.teacher-activity-list > li[data-kind="attention"],
.teacher-activity-list > li.is-attention {
  border-left-color: var(--color-warning);
}

.admin-inline-detail-host:not([hidden]) {
  position: fixed;
  z-index: 110;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgb(12 18 24 / 42%);
  backdrop-filter: blur(2px);
}

.admin-inline-detail-host:not([hidden]) .admin-usage-dialog {
  width: min(760px, calc(100vw - 32px));
  max-height: min(84vh, 840px);
  overflow: auto;
  margin: 0;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--surface-raised);
  box-shadow: var(--shadow-popup);
}

.admin-dialog-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}

.admin-dialog-heading h4 {
  margin: 0;
}

.admin-dialog-close {
  min-width: 44px;
  min-height: 44px;
  padding: 0 10px;
}

body.ui811-role-teacher .teacher-activity-list li {
  border-left-width: 3px;
  border-left-color: transparent;
}

body.ui811-role-teacher .teacher-activity-list li.is-attention,
body.ui811-role-teacher .teacher-activity-list li[data-kind="attention"] {
  border-left-color: var(--color-warning);
}

.admin-navigation .admin-nav-caption {
  color: var(--color-text-muted);
  font-weight: 700;
  letter-spacing: 0;
}

.admin-navigation [role="tab"] {
  min-height: 44px;
  color: var(--color-text-secondary);
  font-weight: 520;
}

.admin-navigation [role="tab"][aria-selected="true"] {
  color: var(--color-text-primary);
  font-weight: 700;
}

.admin-sidebar-footer {
  padding-bottom: max(18px, env(safe-area-inset-bottom));
}

.admin-sidebar-footer-actions button,
.admin-utility-menu summary {
  min-height: 44px;
}

.admin-utility-menu summary {
  display: flex;
  align-items: center;
}

#ui811-admin-theme svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.admin-topbar-actions .ui811-admin-duplicate-action {
  display: none;
}

.ui811-provider-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.ui811-provider-grid > li {
  min-width: 0;
  overflow-wrap: anywhere;
}

body.ui811-role-admin .admin-breadcrumb > span:first-child {
  color: var(--color-text-muted);
}

@media (max-width: 720px) {
  .ui811-history-filters {
    display: flex;
    width: 100%;
  }

  .ui811-history-filters button {
    flex: 1;
  }

  .ui811-modal-footer {
    flex-direction: column-reverse;
  }

  .ui811-modal-footer button {
    width: 100%;
  }

  body.ui811-role-student [data-view="account"] {
    min-height: auto;
    align-content: start;
    padding-top: 7vh;
  }

  .ui811-profile-grid {
    grid-template-columns: 1fr;
  }

  .ui811-style-choices {
    grid-template-columns: 1fr;
  }

  .ui811-memory-add {
    grid-template-columns: 1fr;
  }

  .ui811-profile-actions,
  .ui811-profile-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .ui811-profile-actions button,
  .ui811-profile-footer button {
    width: 100%;
  }

  .admin-inline-detail-host:not([hidden]) {
    padding: 12px;
  }

  .admin-inline-detail-host:not([hidden]) .admin-usage-dialog {
    width: 100%;
    max-height: calc(100vh - 24px);
  }

  .admin-topbar-actions .ui811-admin-duplicate-action {
    display: inline-flex;
  }

  .ui811-provider-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ui811-toast,
  .ui811-modal,
  .ui811-menu {
    transition: none;
  }
}