:root {
  color-scheme: light;
  --bg: #f3f5f8;
  --sidebar: #1f2d3d;
  --sidebar-active: #263b52;
  --primary: #3f7d58;
  --primary-hover: #356b4b;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --panel: #ffffff;
  --danger: #d94841;
  --success: #2f8f5b;
  --shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  height: 100vh;
  overflow: hidden;
  display: grid;
  grid-template-columns: 232px 1fr;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

aside {
  height: 100vh;
  overflow-y: auto;
  padding: 18px 12px;
  background: var(--sidebar);
  color: #d8e0e8;
}

.brand {
  height: 52px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  margin-bottom: 16px;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0;
}

aside button {
  width: 100%;
  height: 44px;
  margin-bottom: 6px;
  border: 0;
  border-radius: 6px;
  padding: 0 14px;
  color: #cbd5e1;
  text-align: left;
  background: transparent;
  cursor: pointer;
}

aside button:hover,
aside button.active {
  color: #fff;
  background: var(--sidebar-active);
}

main {
  min-width: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 0 24px 28px;
}

header {
  height: 72px;
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  margin: 0 -24px 24px;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 22px;
}

h2 {
  font-size: 18px;
}

h3 {
  margin: 0;
  font-size: 15px;
}

p,
.meta {
  color: var(--muted);
}

.meta {
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.55;
}

#loginForm {
  display: grid;
  grid-template-columns: 210px 230px 160px 72px;
  gap: 8px;
  align-items: center;
}

.sessionBar {
  display: none;
  align-items: center;
  gap: 10px;
}

.loggedIn #loginForm {
  display: none;
}

.loggedIn .sessionBar {
  display: flex;
}

.contentAdminOnly [data-tab="users"],
.contentAdminOnly [data-tab="feedback"],
.contentAdminOnly [data-tab="support"],
.contentAdminOnly [data-tab="appUpdate"],
.contentAdminOnly [data-tab="audit"],
.contentAdminOnly #users,
.contentAdminOnly #feedback,
.contentAdminOnly #support,
.contentAdminOnly #appUpdate,
.contentAdminOnly #audit {
  display: none !important;
}

.smallInput {
  width: 92px;
}

.panelActions,
.modalFooter {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.lockedGroupField {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #f8faf9;
}

.lockedGroupField span {
  color: var(--muted);
  font-size: 13px;
}

.groupMembersModal {
  width: min(620px, calc(100vw - 32px));
}

.groupMembersList {
  max-height: min(56vh, 520px);
  overflow-y: auto;
  margin: 12px 0;
  border: 1px solid var(--border);
}

.memberSelectionActions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 10px;
}

.memberChoice {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.memberChoice:last-child {
  border-bottom: 0;
}

.memberChoice:hover {
  background: #f6f9f7;
}

.memberChoice input {
  width: 18px;
  min-height: 18px;
  flex: 0 0 18px;
}

.memberChoice span,
.memberChoice small {
  display: block;
}

.memberChoice small {
  margin-top: 3px;
  color: var(--muted);
}

.modalFooter {
  justify-content: space-between;
}

.roleSelect {
  margin-top: 8px;
  min-height: 32px;
  font-size: 12px;
}

input,
textarea,
select {
  width: 100%;
  min-height: 36px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  padding: 7px 10px;
  color: var(--text);
  background: #fff;
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(63, 125, 88, 0.12);
}

textarea {
  min-height: 78px;
  resize: vertical;
}

button {
  min-height: 36px;
  border: 1px solid var(--primary);
  border-radius: 4px;
  padding: 0 14px;
  color: #fff;
  background: var(--primary);
  cursor: pointer;
}

button:hover {
  background: var(--primary-hover);
}

button:disabled {
  border-color: #cbd5e1;
  color: #64748b;
  background: #e2e8f0;
  cursor: not-allowed;
}

.dangerButton {
  border-color: var(--danger);
  color: #fff;
  background: var(--danger);
}

.dangerButton:hover {
  border-color: #b9332e;
  background: #b9332e;
}

.linkButton {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--primary);
  border-radius: 4px;
  padding: 0 12px;
  color: var(--primary);
  background: #fff;
  font-size: 14px;
  text-decoration: none;
}

.linkButton:hover {
  background: #f3faf6;
}

.folderBar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 12px;
}

.folderPill {
  display: inline-flex;
  overflow: hidden;
  border-radius: 4px;
}

.folderBar button {
  min-height: 32px;
  border-color: #d1d5db;
  color: #374151;
  background: #fff;
  font-size: 13px;
}

.folderPill > button:first-child {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.folderDelete {
  width: 32px;
  border-left: 0 !important;
  border-top-left-radius: 0 !important;
  border-bottom-left-radius: 0 !important;
  padding: 0 !important;
  color: var(--danger) !important;
}

.folderBar button:hover,
.folderBar button.active {
  border-color: var(--primary);
  color: var(--primary);
  background: #f3faf6;
}

.panel {
  display: none;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel.active {
  display: block;
}

.panelHead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.panelHead p,
.subhead p {
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.5;
}

.subhead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin: 22px 0 12px;
}

.formGrid {
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fafafa;
}

.formGrid textarea {
  grid-column: span 2;
}

.fieldLabel {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.fieldLabel input,
.fieldLabel select {
  width: 100%;
}

.formGrid .full {
  grid-column: 1 / -1;
}

.formGrid button {
  align-self: end;
}

.grid,
.list {
  overflow-x: auto;
}

.scheduleBoard {
  display: grid;
  gap: 18px;
}

.scheduleSection {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
}

.scheduleSectionHead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: #fbfcfd;
  cursor: pointer;
  list-style: none;
}

.scheduleSectionHead::-webkit-details-marker {
  display: none;
}

.scheduleSectionHead::before {
  content: ">";
  width: 18px;
  height: 18px;
  display: inline-grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 4px;
  color: var(--muted);
  font-size: 13px;
  transition: transform 0.16s ease;
}

.scheduleSectionHead:hover {
  background: #f6faf7;
}

.scheduleSection[open] .scheduleSectionHead::before {
  transform: rotate(90deg);
}

.scheduleSection:not([open]) .scheduleSectionHead {
  border-bottom: 0;
}

.scheduleSectionMeta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.scheduleSectionBody {
  overflow-x: auto;
}

.scheduleSectionHead p {
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.5;
}

table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  background: #fff;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
  word-break: break-word;
}

th {
  color: #4b5563;
  font-size: 13px;
  font-weight: 600;
  background: #f8fafc;
}

tr:hover td {
  background: #fbfcfd;
}

.emptyCell {
  color: var(--muted);
  text-align: center;
}

.actions {
  white-space: normal;
}

.actions button {
  margin: 0 8px 8px 0;
}

.compactButton {
  min-height: 28px;
  padding: 0 10px;
  font-size: 12px;
}

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

.inlineField button {
  white-space: nowrap;
}

.modelFieldActions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: stretch;
}

.modelFieldActions button,
.modelUploadButton {
  font-family: inherit;
  font-size: 14px;
  font-weight: 400;
}

.modelUploadField {
  grid-column: 1 / -1;
  grid-template-columns: minmax(240px, 1fr) auto;
}

.modelUploadButton {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary);
  border-radius: 4px;
  padding: 0 12px;
  color: #fff;
  background: var(--primary);
  white-space: nowrap;
  cursor: pointer;
}

.modelUploadButton:hover {
  border-color: var(--primary-hover);
  color: #fff;
  background: var(--primary-hover);
}

.modelUploadStatus {
  min-height: 18px;
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 760px) {
  .modelUploadField {
    grid-template-columns: 1fr;
  }

  .modelFieldActions,
  .modelFieldActions button,
  .modelUploadButton {
    width: 100%;
  }
}

.richEditor {
  grid-column: 1 / -1;
  overflow: hidden;
  border: 1px solid #dcdfe6;
  border-radius: 6px;
  background: #fff;
}

.richEditor:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(63, 125, 88, 0.12);
}

.richToolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  padding: 8px;
  border-bottom: 1px solid var(--border);
  background: #f8fafc;
}

.richToolbar button,
.imageInsertButton {
  min-height: 30px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  padding: 0 10px;
  color: #374151;
  background: #fff;
  font-size: 13px;
  line-height: 30px;
  cursor: pointer;
}

.richToolbar button:hover,
.imageInsertButton:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: #f3faf6;
}

.richSurface {
  min-height: 180px;
  padding: 12px;
  line-height: 1.75;
  outline: none;
}

.richSurface:empty::before {
  content: attr(data-placeholder);
  color: #9ca3af;
}

.richSurface h3 {
  margin: 10px 0 6px;
  font-size: 17px;
}

.richSurface p {
  margin: 8px 0;
  color: var(--text);
}

.richSurface blockquote {
  margin: 10px 0;
  border-left: 3px solid var(--primary);
  padding: 8px 12px;
  color: #4b5563;
  background: #f6faf7;
}

.richSurface img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 10px 0;
  border-radius: 6px;
}

.richSurface figure {
  margin: 12px 0;
}

.richSurface figcaption {
  color: var(--muted);
  font-size: 12px;
}

.checkField {
  min-height: 36px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.checkField input {
  width: auto;
  min-height: 0;
}

.modalOverlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(15, 23, 42, 0.42);
}

#modelPickerModal,
#modelPreviewModal,
#confirmModal,
#deviceModal {
  z-index: 40;
}

.modal {
  width: min(980px, 100%);
  max-height: min(86vh, 820px);
  overflow: auto;
  border-radius: 6px;
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.28);
}

.modalHead {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.modal .formGrid {
  margin: 0;
  border: 0;
  border-radius: 0;
}

.confirmModal {
  width: min(560px, 100%);
}

.confirmModal .modalHead {
  position: static;
  align-items: flex-start;
}

.confirmModal p {
  margin-top: 8px;
  color: var(--text);
  line-height: 1.75;
  white-space: pre-wrap;
}

.confirmActions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 18px 18px;
}

.confirmActions button:first-child {
  border-color: #d1d5db;
  color: #374151;
  background: #fff;
}

.confirmActions button:first-child:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: #f3faf6;
}

.modelPickerList {
  display: grid;
  gap: 10px;
  padding: 16px;
}

.modelOption {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  text-align: left;
  background: #fff;
}

.modelOption:hover {
  border-color: var(--primary);
  background: #f6faf7;
}

.modelOption span:first-child {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.modelOption small {
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.imagePickerList {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  padding: 16px;
}

.imageOption {
  min-width: 0;
  display: grid;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  color: var(--text);
  text-align: left;
  background: #fff;
  cursor: pointer;
}

.imageOption:hover {
  border-color: var(--primary);
  background: #f6faf7;
}

.imageOption img {
  width: 100%;
  height: 110px;
  object-fit: contain;
  border-radius: 4px;
  background: #f3f4f6;
}

.imageOption span {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.imageOption small {
  overflow: hidden;
  color: var(--muted);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.modelPreviewViewer {
  width: 100%;
  height: min(64vh, 620px);
  display: block;
  background: #f8fafc;
}

.tag {
  display: inline-flex;
  min-height: 22px;
  align-items: center;
  border-radius: 4px;
  padding: 0 8px;
  color: #3f5f8f;
  background: #eef5ff;
  font-size: 12px;
}

.tag.success {
  color: var(--success);
  background: #ecf8f1;
}

.tag.muted {
  color: #6b7280;
  background: #f3f4f6;
}

.tag.warning {
  color: #9a5b00;
  background: #fff3d7;
}

.tag.danger {
  color: var(--danger);
  background: #fff1f0;
}

.deviceSummary {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.compactDeviceSummary {
  margin: 0;
  white-space: nowrap;
}

.compactDeviceSummary button {
  min-height: 30px;
  padding: 0 10px;
}

.deviceModal {
  width: min(680px, 100%);
}

.deviceModalBody {
  padding: 16px 18px 18px;
}

.deviceModalSummary {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
}

.deviceModalSummary .meta {
  margin: 0;
}

.deviceList {
  display: grid;
  gap: 8px;
}

.deviceItem {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fbfcfd;
}

.deviceItem button {
  min-height: 30px;
  padding: 0 10px;
}

code {
  color: #334155;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.hint {
  color: var(--success);
  line-height: 1.7;
}

.empty {
  border: 1px dashed #cbd5e1;
  border-radius: 6px;
  padding: 16px;
  color: var(--muted);
  background: #f8fafc;
}

.toast {
  position: fixed;
  top: 18px;
  right: 22px;
  z-index: 10;
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  border-radius: 6px;
  padding: 10px 14px;
  color: #fff;
  background: var(--success);
  box-shadow: var(--shadow);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.toast.success,
.toast.error {
  transform: translateY(0);
  opacity: 1;
}

.toast.error {
  background: var(--danger);
}

.supportPreviewGrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 12px;
}

.supportQrCard {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.supportQrCard img {
  width: min(220px, 100%);
  aspect-ratio: 1;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.supportQrCard code {
  white-space: normal;
  word-break: break-all;
}

.filterBar {
  display: grid;
  grid-template-columns: 140px 140px 150px 150px minmax(220px, 1fr) auto;
  gap: 10px;
  margin-bottom: 16px;
}

.feedbackCard {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.feedbackCardHead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.feedbackCard p {
  color: var(--text);
  white-space: pre-wrap;
  line-height: 1.7;
}

.feedbackWorkflow {
  display: grid;
  grid-template-columns: 150px minmax(240px, 1fr) auto;
  gap: 10px;
  align-items: end;
}

.feedbackWorkflow textarea {
  min-height: 72px;
  resize: vertical;
}

.listRow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.listRow:last-child {
  border-bottom: 0;
}

.compactModal {
  max-width: 520px;
}

@media (max-width: 980px) {
  body {
    height: auto;
    min-height: 100vh;
    overflow: auto;
  }

  body {
    grid-template-columns: 1fr;
  }

  aside {
    height: auto;
    overflow-x: auto;
    overflow-y: hidden;
    display: flex;
    gap: 8px;
    padding: 10px;
  }

  main {
    height: auto;
    overflow: visible;
  }

  .brand {
    min-width: 104px;
    height: 40px;
    margin: 0;
    padding: 0 8px;
    font-size: 18px;
  }

  aside button {
    min-width: 96px;
    margin: 0;
    text-align: center;
  }

  header,
  #loginForm,
  .formGrid,
  .panelHead,
  .subhead {
    grid-template-columns: 1fr;
  }

  header {
    height: auto;
    display: grid;
    padding: 16px 24px;
  }

  .formGrid textarea {
    grid-column: auto;
  }

  .panelHead,
  .subhead {
    display: grid;
    align-items: start;
  }
}

@media (max-width: 720px) {
  .filterBar {
    grid-template-columns: 1fr 1fr;
  }

  .filterBar input[name="query"],
  .filterBar button {
    grid-column: span 2;
  }

  .feedbackWorkflow {
    grid-template-columns: 1fr;
  }
}