:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --line: #dfe4ea;
  --text: #1f2933;
  --muted: #687685;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --success: #16803c;
  --warning: #b7791f;
  --danger: #b91c1c;
  --note-yellow: #fff7b8;
  --note-green: #c8f5d4;
  --note-red: #ffd0d0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Noto Sans TC", Arial, sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  cursor: pointer;
  padding: 10px 14px;
}

button:hover {
  background: var(--accent-dark);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: var(--text);
  padding: 10px 12px;
}

textarea {
  resize: vertical;
}

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

label input,
label select,
label textarea {
  color: var(--text);
  font-size: 15px;
}

.app {
  display: grid;
  grid-template-columns: 280px minmax(520px, 1fr) 340px;
  min-height: 100vh;
  transition: grid-template-columns .18s ease;
}

.sidebar,
.workspace,
.detail {
  padding: 24px;
}

.sidebar,
.detail {
  background: var(--panel);
  border-right: 1px solid var(--line);
}

.sidebar {
  overflow: hidden;
}

.detail {
  border-right: 0;
  border-left: 1px solid var(--line);
  display: grid;
  align-content: start;
  gap: 22px;
}

.eyebrow {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  margin: 0 0 6px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: 26px;
  line-height: 1.2;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 15px;
}

.quota {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 24px 0;
  padding: 14px;
}

.quota span,
.muted {
  color: var(--muted);
}

.quota strong {
  display: block;
  font-size: 24px;
}

.quota button {
  background: #eef4ff;
  color: var(--accent);
}

.nav {
  display: grid;
  gap: 8px;
  margin-bottom: 28px;
}

.nav button {
  align-items: center;
  background: transparent;
  color: var(--muted);
  display: flex;
  gap: 10px;
  min-height: 42px;
  text-align: left;
  width: 100%;
}

.nav button.active {
  background: #eef4ff;
  color: var(--accent);
}

.nav-icon {
  align-items: center;
  display: inline-flex;
  flex: 0 0 24px;
  font-size: 18px;
  justify-content: center;
  line-height: 1;
}

.nav-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-top {
  align-items: start;
  display: flex;
  gap: 10px;
}

.icon-button {
  align-items: center;
  background: #eef4ff;
  color: var(--accent);
  display: inline-flex;
  flex: 0 0 auto;
  height: 36px;
  justify-content: center;
  padding: 0;
  width: 36px;
}

.login-user {
  align-items: start;
  display: flex;
  gap: 10px;
  min-width: 0;
}

.login-user-text {
  min-width: 0;
}

.login-user h1 {
  margin-bottom: 4px;
}

body.sidebar-collapsed .app {
  grid-template-columns: 62px minmax(520px, 1fr) 340px;
}

body.sidebar-collapsed .sidebar {
  padding: 12px 8px;
}

body.sidebar-collapsed .sidebar-top {
  align-items: center;
  display: grid;
  gap: 10px;
  justify-items: center;
}

body.sidebar-collapsed .login-user {
  justify-content: center;
}

body.sidebar-collapsed .login-user .avatar {
  height: 34px;
  width: 34px;
}

body.sidebar-collapsed .login-user-text,
body.sidebar-collapsed .quota,
body.sidebar-collapsed .sidebar section {
  display: none;
}

body.sidebar-collapsed .nav button {
  border-radius: 8px;
  justify-content: center;
  min-height: 42px;
  padding: 0;
  text-align: center;
}

body.sidebar-collapsed .nav-label {
  display: none;
}

body.sidebar-collapsed .nav-icon {
  flex-basis: auto;
}

.people {
  display: grid;
  gap: 10px;
}

#morePeopleButton {
  margin-top: 10px;
  width: 100%;
}

.person,
.task-card,
.composer,
.column,
.content-box,
.reply {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.person {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
}

.avatar {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: #e8eef7;
  color: var(--accent);
  font-weight: 700;
}

.workspace {
  display: grid;
  align-content: start;
  gap: 18px;
}

.toolbar,
.actions,
.task-top,
.task-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.task-foot-right {
  justify-content: flex-end;
}

.composer {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.field-row {
  display: grid;
  grid-template-columns: 1.5fr .7fr .8fr;
  gap: 12px;
}

#tokenHint {
  color: var(--muted);
  font-size: 13px;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.main-board {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.reply-workspace {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(360px, 1fr) minmax(260px, .8fr);
}

.completed-task-list {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.completed-case-list {
  display: grid;
  gap: 10px;
}

.completed-case {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 12px;
}

.completed-case summary {
  cursor: pointer;
  display: grid;
  gap: 4px;
}

.completed-case-detail {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
  margin-top: 10px;
  padding-top: 10px;
}

.column {
  min-height: 420px;
  padding: 14px;
}

.task-list {
  display: grid;
  gap: 12px;
}

.task-card {
  display: grid;
  gap: 10px;
  padding: 13px;
}

.task-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px #dbeafe;
}

.task-card button {
  background: transparent;
  color: var(--accent);
  padding: 0;
}

.sticky-legend {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sticky-legend > div {
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  gap: 9px;
  padding: 10px 12px;
}

.sticky-legend small {
  color: var(--muted);
}

.group-filter-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 10px;
  padding: 12px;
}

.group-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.group-option {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  display: inline-flex;
  gap: 7px;
  padding: 7px 10px;
}

.group-option input {
  width: auto;
}

.group-option small {
  color: var(--muted);
}

.status-dot {
  border: 1px solid rgba(31, 41, 51, .18);
  border-radius: 999px;
  display: inline-block;
  height: 16px;
  width: 16px;
}

.note-yellow {
  background: var(--note-yellow);
}

.note-green {
  background: var(--note-green);
}

.note-red {
  background: var(--note-red);
}

.sticky-board .column {
  background: #f8fafc;
}

.sticky-board .long-project-column {
  background: #f5f7ff;
}

.sticky-board .column.drag-over {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 2px #bfdbfe;
}

.sticky-lane {
  min-height: 340px;
}

.progress-block {
  display: grid;
  gap: 5px;
}

.progress-top {
  align-items: center;
  color: var(--muted);
  display: flex;
  font-size: 12px;
  justify-content: space-between;
}

.progress-track {
  background: rgba(37, 99, 235, .14);
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
}

.progress-track span {
  background: var(--accent);
  display: block;
  height: 100%;
}

.sticky-note {
  border: 0;
  box-shadow: 0 8px 18px rgba(31, 41, 51, .12);
  cursor: grab;
  min-height: 170px;
  position: relative;
  transform: rotate(-.6deg);
}

.sticky-note:nth-child(even) {
  transform: rotate(.7deg);
}

.sticky-note.dragging {
  cursor: grabbing;
  opacity: .6;
}

.sticky-note.mouse-dragging {
  cursor: grabbing;
  opacity: .82;
  transform: translate(var(--drag-x), var(--drag-y)) rotate(1deg);
  z-index: 20;
}

.sticky-yellow {
  background: var(--note-yellow);
}

.sticky-green {
  background: var(--note-green);
}

.sticky-red {
  background: var(--note-red);
}

.note-meta {
  color: #3b4754;
  display: flex;
  flex-wrap: wrap;
  font-size: 12px;
  gap: 8px;
}

.color-controls {
  display: flex;
  gap: 6px;
}

.color-controls button {
  border: 1px solid rgba(31, 41, 51, .18);
  border-radius: 999px;
  color: #1f2933;
  height: 28px;
  padding: 0;
  width: 28px;
}

.color-controls [data-color="yellow"] {
  background: var(--note-yellow);
}

.color-controls [data-color="green"] {
  background: var(--note-green);
}

.color-controls [data-color="red"] {
  background: var(--note-red);
}

.danger-button {
  background: #fee2e2;
  color: var(--danger);
}

.danger-button:hover {
  background: #fecaca;
}

.badge {
  border-radius: 99px;
  background: #eef4ff;
  color: var(--accent);
  font-size: 12px;
  padding: 4px 8px;
}

.audience-badge {
  background: #e8f7ed;
  color: var(--success);
  margin-right: 6px;
}

.priority-high {
  background: #fff5e5;
  color: var(--warning);
}

.priority-low {
  background: #edf7ee;
  color: var(--success);
}

.content-box {
  line-height: 1.65;
  padding: 14px;
  white-space: pre-wrap;
}

.replies {
  display: grid;
  gap: 10px;
  margin-bottom: 12px;
}

.reply {
  padding: 11px;
}

.reply strong {
  display: block;
  margin-bottom: 5px;
}

.people-group-directory {
  display: grid;
  gap: 16px;
}

.people-group-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 10px;
  padding: 12px;
}

.dev-log-list {
  display: grid;
  gap: 12px;
}

.dev-log-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 8px;
  padding: 12px;
}

.dev-log-card p {
  margin-bottom: 0;
}

.dev-log-card pre {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: auto;
  padding: 10px;
  white-space: pre-wrap;
}

.latest-log-panel .latest-log > .reply {
  background: #f8fafc;
  min-height: 92px;
}

.detail-reply-panel {
  display: grid;
  gap: 12px;
}

@media (max-width: 1180px) {
  .app {
    grid-template-columns: 240px 1fr;
  }

  .detail {
    grid-column: 1 / -1;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 780px) {
  .app,
  .board,
  .field-row {
    grid-template-columns: 1fr;
  }

  .sidebar,
  .workspace,
  .detail {
    padding: 18px;
  }
}

.person-info {
  display: grid;
  gap: 5px;
  min-width: 0;
  width: 100%;
}

.email-input {
  margin-top: 4px;
  padding: 7px 9px;
  font-size: 13px;
}

.smtp-panel {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.smtp-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: end;
}

.check-label {
  align-items: center;
  color: var(--text);
  display: flex;
  gap: 8px;
  padding-bottom: 10px;
}

.check-label input {
  width: auto;
}

.secondary-button {
  background: #eef4ff;
  color: var(--accent);
}

.section-head {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.small-button {
  padding: 7px 10px;
}

.field-row {
  grid-template-columns: 1.5fr .7fr .8fr;
}

.label-title {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 7px;
}

.assignee-picker,
.assignee-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pick-option,
.chip {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  display: inline-flex;
  gap: 7px;
  padding: 7px 10px;
}

.pick-option input {
  width: auto;
}

.chip {
  background: #eef4ff;
  border-color: #dbeafe;
  color: var(--accent);
  font-size: 12px;
}

.people-dialog {
  border: 0;
  border-radius: 8px;
  max-width: 1180px;
  width: min(96vw, 1180px);
  padding: 0;
}

.people-dialog::backdrop {
  background: rgba(31, 41, 51, .38);
}

.dialog-panel {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.dialog-head {
  align-items: start;
  display: flex;
  justify-content: space-between;
  gap: 14px;
}

.add-person-grid,
.person-edit-row {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(150px, .9fr) minmax(220px, 1.1fr) minmax(210px, 1.2fr) 110px minmax(140px, 1fr) auto;
  align-items: end;
}

.person-edit-row,
.group-edit-row {
  grid-template-columns: minmax(150px, .9fr) minmax(220px, 1.1fr) minmax(210px, 1.2fr) 90px minmax(150px, 1fr) 72px;
  min-width: 940px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.person-edit-row.marked-delete {
  background: #fff1f2;
  opacity: .72;
}

.delete-check {
  align-items: center;
  justify-items: center;
}

.delete-check input {
  width: auto;
}

.wide-field {
  min-width: 260px;
}

.person-group-picker {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 8px;
  padding: 0;
}

.group-pick-details {
  display: grid;
}

.group-pick-details summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: 8px;
  justify-content: space-between;
  list-style: none;
  min-height: 48px;
  padding: 8px 10px;
}

.group-pick-details summary::-webkit-details-marker {
  display: none;
}

.group-pick-details summary::after {
  color: var(--muted);
  content: "展開";
  font-size: 12px;
}

.group-pick-details[open] summary::after {
  content: "收合";
}

.group-pick-details summary strong {
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.group-pick-actions {
  display: flex;
  justify-content: flex-end;
  padding: 0 8px;
}

.group-pick-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px;
}

.group-check {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  display: inline-flex;
  gap: 6px;
  padding: 5px 8px;
}

.group-check input {
  width: auto;
}

.group-edit-row {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(90px, .7fr) 1fr auto auto;
  align-items: end;
}

.people-editor,
.group-editor {
  display: grid;
  overflow-x: auto;
}

.people-field-help {
  margin: 0;
}

.people-bulk-actions {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.group-pick-details summary::after {
  content: "展開";
}

.group-pick-details[open] summary::after {
  content: "收合";
}

.people-admin-panel {
  gap: 14px;
}

.people-admin-panel .section-head {
  align-items: center;
}

.people-admin-table-wrap {
  display: grid;
  gap: 8px;
  overflow-x: auto;
}

.people-admin-head,
.people-admin-row {
  align-items: end;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(150px, .9fr) minmax(230px, 1.2fr) minmax(280px, 1.4fr) 100px minmax(150px, 1fr) 96px;
  min-width: 1060px;
}

.people-admin-head {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  padding: 0 4px;
}

.people-admin-row {
  border-top: 1px solid var(--line);
  padding: 10px 0;
}

.people-admin-row.marked-delete {
  background: #fff1f2;
  opacity: .72;
}

.people-admin-row .person-group-picker {
  min-width: 280px;
}

.level-settings {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.level-name-editor {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.level-name-editor label {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.file-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 8px 12px;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 10px;
}

.file-list a {
  color: var(--accent);
  min-width: 0;
  overflow-wrap: anywhere;
}

@media (max-width: 780px) {
  .add-person-grid,
  .person-edit-row,
  .group-edit-row,
  .level-name-editor,
  .file-list {
    grid-template-columns: 1fr;
  }
}

.toolbar-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.session-view-label {
  align-items: center;
  display: flex;
  gap: 8px;
}

.session-view-label select {
  min-width: 128px;
  padding: 8px 10px;
}

.login-dialog {
  border: 0;
  border-radius: 8px;
  max-width: 460px;
  padding: 0;
  width: min(92vw, 460px);
}

.login-dialog::backdrop {
  background: rgba(31, 41, 51, .42);
}

.login-panel {
  gap: 14px;
}

body.view-mobile .app {
  grid-template-columns: 1fr;
}

body.view-mobile .sidebar,
body.view-mobile .workspace,
body.view-mobile .detail {
  padding: 18px;
}

body.view-mobile .detail {
  border-left: 0;
  border-top: 1px solid var(--line);
}

body.view-mobile .board,
body.view-mobile .field-row {
  grid-template-columns: 1fr;
}

body.view-mobile .toolbar,
body.view-mobile .actions,
body.view-mobile .task-top,
body.view-mobile .task-foot {
  align-items: stretch;
  flex-direction: column;
}

body.view-mobile .toolbar-actions {
  align-items: stretch;
  justify-content: stretch;
}

body.view-mobile .session-view-label {
  align-items: stretch;
  display: grid;
}

body.view-desktop .app {
  grid-template-columns: 280px minmax(520px, 1fr) 340px;
}

body.view-desktop .board {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body.view-desktop .main-board {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body.view-desktop .field-row {
  grid-template-columns: 1.5fr .7fr .8fr;
}

body.view-mobile .reply-workspace,
body.view-mobile .main-board {
  grid-template-columns: 1fr;
}

body.sidebar-collapsed:not(.view-mobile) .app,
body.view-desktop.sidebar-collapsed .app {
  grid-template-columns: 62px minmax(520px, 1fr) 340px;
}

@media (max-width: 1180px) {
  body.sidebar-collapsed:not(.view-mobile) .app,
  body.view-desktop.sidebar-collapsed .app {
    grid-template-columns: 62px minmax(520px, 1fr);
  }
}

body.view-mobile .app {
  padding-bottom: 84px;
}

body.view-mobile .sidebar {
  border: 1px solid var(--line);
  border-radius: 16px 16px 0 0;
  bottom: 0;
  box-shadow: 0 -12px 30px rgba(31, 41, 51, .16);
  left: 0;
  max-height: 78vh;
  overflow: auto;
  position: fixed;
  right: 0;
  top: auto;
  z-index: 50;
}

body.view-mobile.sidebar-collapsed .sidebar {
  align-items: center;
  border-radius: 16px 16px 0 0;
  display: flex;
  gap: 12px;
  height: 70px;
  justify-content: center;
  overflow: hidden;
  padding: 10px 14px;
}

body.view-mobile.sidebar-collapsed .sidebar-top {
  display: contents;
}

body.view-mobile.sidebar-collapsed .login-user {
  order: 1;
}

body.view-mobile.sidebar-collapsed #sidebarToggle {
  order: 2;
}

body.view-mobile.sidebar-collapsed .nav,
body.view-mobile.sidebar-collapsed .quota,
body.view-mobile.sidebar-collapsed .sidebar section,
body.view-mobile.sidebar-collapsed .login-user-text {
  display: none;
}

body.view-mobile:not(.sidebar-collapsed) .sidebar {
  display: grid;
  gap: 16px;
  padding: 18px;
}

body.view-mobile:not(.sidebar-collapsed) .nav {
  margin-bottom: 0;
}

body.view-desktop .detail {
  border-left: 1px solid var(--line);
  border-top: 0;
  grid-column: auto;
}

.page-panel {
  display: none;
}

.page-panel.active-page {
  display: grid;
  gap: 18px;
}

.planning-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.plan-card,
.person-directory-card,
.settings-list > div {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.plan-card p {
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 0;
}

.roadmap-list,
.people-directory {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.admin-dashboard {
  max-width: 1120px;
}

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

.admin-action-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 10px;
  padding: 14px;
}

.admin-action-card p {
  margin: 0;
}

.menu-icon-editor {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.menu-icon-row {
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr 72px;
  padding: 10px;
}

.menu-icon-row input {
  text-align: center;
}

.person-directory-card {
  align-items: center;
  display: flex;
  gap: 12px;
  min-width: 260px;
}

.person-directory-card p {
  margin-bottom: 0;
}

.smtp-page-panel {
  max-width: 760px;
}

.settings-list {
  display: grid;
  gap: 10px;
}

.settings-list > div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.settings-list span {
  color: var(--muted);
}

body.view-mobile .planning-grid,
body.view-mobile .sticky-legend,
body.view-mobile .admin-action-grid,
body.view-mobile .menu-icon-editor,
body.view-mobile .settings-list > div {
  grid-template-columns: 1fr;
}

body.view-mobile .settings-list > div {
  display: grid;
}

/* Desktop + iOS app polish */
:root {
  --bg: #f6f8fb;
  --panel: #ffffff;
  --line: #e2e8f0;
  --text: #172033;
  --muted: #64748b;
  --accent: #2563eb;
  --accent-dark: #1e40af;
  --soft-accent: #eff6ff;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow-md: 0 14px 36px rgba(15, 23, 42, .10);
}

body {
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, .10), transparent 34rem),
    linear-gradient(180deg, #fbfdff 0%, var(--bg) 36%, #eef3f9 100%);
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  transition: border-color .16s ease, box-shadow .16s ease, background .16s ease, transform .16s ease;
}

button:active {
  transform: translateY(1px);
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(37, 99, 235, .55);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
  outline: 0;
}

.app {
  grid-template-columns: 264px minmax(640px, 1fr) 360px;
}

.sidebar,
.detail {
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(20px);
}

.sidebar {
  border-right: 1px solid rgba(226, 232, 240, .86);
  box-shadow: var(--shadow-sm);
}

.workspace {
  padding: 22px;
}

.toolbar {
  background: rgba(255, 255, 255, .78);
  border: 1px solid rgba(226, 232, 240, .88);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  padding: 14px 16px;
  position: sticky;
  top: 12px;
  z-index: 20;
  backdrop-filter: blur(18px);
}

.nav button {
  border-radius: 12px;
  font-weight: 650;
  padding: 10px 12px;
}

.nav button.active {
  background: var(--soft-accent);
  box-shadow: inset 0 0 0 1px rgba(37, 99, 235, .16);
}

.person,
.task-card,
.composer,
.column,
.content-box,
.reply,
.group-filter-panel,
.completed-case,
.plan-card,
.person-directory-card,
.settings-list > div,
.admin-action-card {
  border-color: rgba(226, 232, 240, .95);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.composer,
.column,
.group-filter-panel {
  background: rgba(255, 255, 255, .88);
}

.main-board {
  grid-template-columns: repeat(3, minmax(240px, 1fr));
}

.column {
  min-height: 560px;
}

.column > h3 {
  align-items: center;
  display: flex;
  font-size: 14px;
  justify-content: space-between;
  letter-spacing: .01em;
}

.sticky-note {
  border: 1px solid rgba(15, 23, 42, .05);
  border-radius: 14px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, .10);
  min-height: 150px;
}

.task-card.selected {
  border-color: rgba(37, 99, 235, .65);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, .14), 0 16px 32px rgba(15, 23, 42, .12);
}

.badge,
.chip,
.group-option,
.pick-option {
  border-radius: 999px;
}

.detail {
  box-shadow: -1px 0 0 rgba(226, 232, 240, .75);
}

body.view-desktop .app {
  min-width: 1160px;
}

body.view-mobile {
  background: #f6f8fb;
}

body.view-mobile .app {
  display: block;
  min-height: 100dvh;
  padding-bottom: calc(84px + env(safe-area-inset-bottom));
}

body.view-mobile .workspace,
body.view-mobile .detail {
  padding: 14px;
}

body.view-mobile .toolbar {
  border-radius: 0 0 18px 18px;
  margin: -14px -14px 14px;
  padding: calc(12px + env(safe-area-inset-top)) 14px 12px;
  top: 0;
}

body.view-mobile .toolbar,
body.view-mobile .toolbar-actions {
  align-items: stretch;
}

body.view-mobile .toolbar-actions {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr 1fr;
}

body.view-mobile .main-board {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(82vw, 1fr);
  grid-template-columns: none;
  overflow-x: auto;
  padding-bottom: 6px;
  scroll-snap-type: x mandatory;
}

body.view-mobile .column {
  min-height: 58vh;
  scroll-snap-align: start;
}

body.view-mobile .sidebar {
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(226, 232, 240, .9);
  border-radius: 22px 22px 0 0;
  box-shadow: 0 -18px 42px rgba(15, 23, 42, .18);
  backdrop-filter: blur(24px);
}

body.view-mobile.sidebar-collapsed .sidebar {
  border-radius: 24px 24px 0 0;
  height: calc(76px + env(safe-area-inset-bottom));
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
}

body.view-mobile.sidebar-collapsed .nav {
  display: flex;
}

body.view-mobile.sidebar-collapsed .nav button {
  min-height: 48px;
  width: 48px;
}

body.view-mobile.sidebar-collapsed .login-user .avatar {
  height: 42px;
  width: 42px;
}

body.view-mobile .task-card,
body.view-mobile .composer,
body.view-mobile .group-filter-panel,
body.view-mobile .content-box,
body.view-mobile .reply {
  border-radius: 16px;
}

@media (max-width: 980px) {
  .planning-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 780px) {
  .planning-grid {
    grid-template-columns: 1fr;
  }
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.auth-tabs button.active-auth {
  background: var(--accent);
  color: white;
}

.auth-section {
  display: grid;
  gap: 10px;
}

.hidden-section {
  display: none !important;
}

.auth-actions {
  align-items: stretch;
}

.switch-line {
  align-items: center;
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.switch-line input {
  width: auto;
}

.setup-steps {
  display: grid;
  gap: 8px;
}

.setup-steps p {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 0;
  padding: 10px 12px;
}

/* PWA shell */
.pwa-install-button {
  background: #eef4ff;
  color: var(--accent);
}

.pwa-status.pwa-ready {
  background: #dcfce7;
  color: var(--success);
}

.mobile-tabbar,
.mobile-fab {
  display: none;
}

.desktop-tabbar {
  align-items: center;
  background: rgba(255, 255, 255, .84);
  border: 1px solid rgba(226, 232, 240, .92);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 8px;
  margin-top: -4px;
  padding: 8px;
  position: sticky;
  top: 92px;
  z-index: 18;
  backdrop-filter: blur(18px);
}

.desktop-tabbar .desktop-flow {
  align-items: center;
  background: #f8fafc;
  border: 1px solid rgba(226, 232, 240, .9);
  border-radius: 12px;
  color: var(--muted);
  display: flex;
  flex: 1 1 auto;
  gap: 8px;
  min-width: 260px;
  padding: 10px 12px;
}

.desktop-tabbar .desktop-flow strong {
  color: var(--accent);
}

.desktop-tabbar .desktop-flow span::before {
  color: #94a3b8;
  content: "-> ";
}

.desktop-tabbar button {
  align-items: center;
  background: transparent;
  color: var(--muted);
  display: inline-flex;
  flex: 0 0 auto;
  gap: 8px;
  min-height: 42px;
  padding: 9px 12px;
}

.desktop-tabbar button.active {
  background: var(--soft-accent);
  color: var(--accent);
}

.desktop-tabbar .nav-label {
  font-weight: 650;
}

body.view-mobile .desktop-tabbar {
  display: none;
}

body.view-mobile .mobile-tabbar {
  align-items: center;
  background: rgba(255, 255, 255, .94);
  border: 1px solid rgba(226, 232, 240, .95);
  border-radius: 22px 22px 0 0;
  bottom: 0;
  box-shadow: 0 -14px 34px rgba(15, 23, 42, .16);
  display: grid;
  gap: 4px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  left: 0;
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  position: fixed;
  right: 0;
  z-index: 70;
  backdrop-filter: blur(22px);
}

body.view-mobile .mobile-tabbar button {
  align-items: center;
  background: transparent;
  border-radius: 14px;
  color: var(--muted);
  display: grid;
  gap: 2px;
  justify-items: center;
  min-height: 52px;
  padding: 6px 4px;
}

body.view-mobile .mobile-tabbar button.active {
  background: var(--soft-accent);
  color: var(--accent);
}

body.view-mobile .mobile-tabbar .nav-icon {
  font-size: 17px;
}

body.view-mobile .mobile-tabbar .nav-label {
  font-size: 11px;
  max-width: 100%;
}

body.view-mobile .mobile-tabbar [data-page="adminPage"]:not(.hidden-section) ~ button,
body.view-mobile .mobile-tabbar:has([data-page="adminPage"]:not(.hidden-section)) {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

body.view-mobile .mobile-fab {
  align-items: center;
  background: var(--accent);
  border-radius: 999px;
  bottom: calc(86px + env(safe-area-inset-bottom));
  box-shadow: 0 16px 30px rgba(37, 99, 235, .32);
  display: flex;
  font-size: 28px;
  height: 58px;
  justify-content: center;
  padding: 0;
  position: fixed;
  right: 18px;
  width: 58px;
  z-index: 65;
}

body.view-mobile .app {
  padding-bottom: calc(112px + env(safe-area-inset-bottom));
}

body.view-mobile.sidebar-collapsed .sidebar {
  display: none;
}

body.view-mobile:not(.sidebar-collapsed) .sidebar {
  bottom: calc(74px + env(safe-area-inset-bottom));
  max-height: min(72vh, 620px);
  z-index: 68;
}

body.view-mobile .toolbar-actions {
  grid-template-columns: 1fr auto;
}

body.view-mobile .toolbar-actions .session-view-label,
body.view-mobile #newTaskButton,
body.view-mobile #logoutButton {
  display: none;
}

body.view-mobile .pwa-install-button,
body.view-mobile .pwa-status,
body.view-mobile #activeViewLabel {
  min-height: 38px;
}

body.view-mobile .detail {
  margin-top: 14px;
}

body.view-mobile .detail-reply-panel {
  background: rgba(255, 255, 255, .94);
  border: 1px solid rgba(226, 232, 240, .95);
  border-radius: 18px;
  box-shadow: var(--shadow-md);
  padding: 14px;
}

body.view-mobile .detail-reply-panel .actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

body.view-mobile .detail-reply-panel textarea {
  min-height: 110px;
}

body.view-mobile .latest-log-panel {
  background: #f8fafc;
  border: 1px solid rgba(226, 232, 240, .95);
  border-radius: 16px;
  padding: 12px;
}

@supports not selector(:has(*)) {
  body.view-mobile .mobile-tabbar {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}