:root {
  color-scheme: light;
  font-family:
    "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  --bg: #f5f7f9;
  --panel: #ffffff;
  --panel-soft: #eef3f7;
  --ink: #15202b;
  --muted: #64748b;
  --line: #d9e1e8;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --danger: #b42318;
  --danger-bg: #fff1f0;
  --warning: #b45309;
  --warning-bg: #fff7ed;
  --success: #166534;
  --success-bg: #ecfdf3;
  --shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
}

body.auth-locked .app-header,
body.auth-locked .app-shell {
  display: none;
}

.auth-gate {
  display: none;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

body.auth-locked .auth-gate {
  display: flex;
}

.pin-panel {
  width: min(420px, 100%);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.pin-panel h2 {
  margin-bottom: 6px;
}

.pin-panel p {
  color: var(--muted);
}

.pin-error {
  display: block;
  min-height: 20px;
  margin-top: 10px;
  color: var(--danger);
  font-weight: 700;
}

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

button {
  cursor: pointer;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(18px, 4vw, 44px);
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

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

h1 {
  margin-bottom: 0;
  font-size: clamp(26px, 4vw, 38px);
  letter-spacing: 0;
}

.header-actions,
.tabs,
.toolbar,
.panel-title,
.building-form,
.form-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.primary-btn,
.ghost-btn,
.tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 8px 14px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.primary-btn {
  background: var(--accent);
  color: #ffffff;
}

.primary-btn:hover {
  background: var(--accent-dark);
}

.ghost-btn,
.tab {
  background: #ffffff;
  border-color: var(--line);
  color: var(--ink);
}

.ghost-btn:hover,
.tab:hover {
  border-color: var(--accent);
}

.tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.file-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  margin: 0;
}

.file-btn input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.app-shell {
  width: min(1500px, 100%);
  margin: 0 auto;
  padding: 22px clamp(14px, 3vw, 34px) 42px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.stats-grid article,
.form-panel,
.content-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.stats-grid article {
  padding: 18px;
}

.stats-grid span {
  color: var(--muted);
  display: block;
  margin-bottom: 8px;
}

.stats-grid strong {
  font-size: 30px;
}

.warn-stat strong {
  color: var(--danger);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, 430px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.form-panel,
.content-panel {
  padding: 18px;
}

.form-panel {
  position: sticky;
  top: 14px;
  max-height: calc(100vh - 28px);
  overflow: auto;
}

.panel-title {
  justify-content: space-between;
  margin-bottom: 14px;
}

.panel-title h2 {
  margin-bottom: 0;
  font-size: 22px;
}

label {
  display: grid;
  gap: 7px;
  margin-bottom: 13px;
  color: #243447;
  font-weight: 700;
}

.header-actions .file-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  min-height: 40px;
  padding: 9px 10px;
  font-weight: 500;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(15, 118, 110, 0.18);
  border-color: var(--accent);
}

.two-col,
.three-col {
  display: grid;
  gap: 10px;
}

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

.three-col {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.computed-box,
fieldset {
  border: 1px solid var(--line);
  background: var(--panel-soft);
  border-radius: 8px;
  padding: 12px;
  margin: 0 0 14px;
}

fieldset legend {
  padding: 0 6px;
  font-weight: 800;
  color: #243447;
}

.check-row {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  gap: 9px;
  margin-bottom: 10px;
  font-weight: 600;
}

.check-row input {
  width: 18px;
  height: 18px;
  min-height: 18px;
}

.fieldset-label {
  margin: 12px 0 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.full-width {
  width: 100%;
}

.danger-text {
  border: 0;
  background: transparent;
  color: var(--danger);
  font-weight: 800;
}

.toolbar {
  flex-wrap: wrap;
  margin: 14px 0;
}

.toolbar input {
  flex: 1;
  min-width: 220px;
}

.toolbar select {
  width: min(240px, 28%);
}

.toolbar-check {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  width: auto;
  min-height: 40px;
  margin: 0;
  color: #243447;
  white-space: nowrap;
}

.toolbar-check input {
  width: 18px;
  height: 18px;
  min-height: 18px;
  padding: 0;
}

.view {
  display: grid;
  gap: 12px;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 14px;
}

.pagination span {
  color: var(--muted);
  font-weight: 700;
}

.hidden {
  display: none !important;
}

.tenancy-card,
.gap-card,
.building-row,
.empty-state {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 15px;
  background: #ffffff;
}

.tenancy-card {
  display: grid;
  gap: 12px;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.property-line {
  margin: 0 0 5px;
  font-size: 19px;
}

.muted {
  color: var(--muted);
}

.badge-row,
.detail-grid,
.status-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  border-radius: 999px;
  background: var(--panel-soft);
  color: #334155;
  padding: 5px 9px;
  font-size: 13px;
  font-weight: 800;
}

.badge.warn {
  background: var(--warning-bg);
  color: var(--warning);
}

.badge.danger {
  background: var(--danger-bg);
  color: var(--danger);
}

.badge.success {
  background: var(--success-bg);
  color: var(--success);
}

.card-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.small-btn {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  min-height: 34px;
  padding: 6px 10px;
  font-weight: 800;
}

.small-btn:hover {
  border-color: var(--accent);
}

.detail-grid span,
.status-grid span {
  min-width: 150px;
  color: #334155;
}

.gap-card.short {
  border-color: #fb7185;
  background: linear-gradient(90deg, var(--danger-bg), #ffffff 70%);
}

.gap-card.ok {
  border-color: #86efac;
}

.building-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.workorder-form {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 15px;
  background: #ffffff;
}

.task-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 16px;
}

.workorder-summary {
  padding: 4px 2px;
  font-weight: 700;
}

.workorder-preview {
  display: grid;
  gap: 10px;
}

.workorder-item {
  display: grid;
  grid-template-columns: 130px minmax(130px, 190px) minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #ffffff;
}

.workorder-item strong {
  display: block;
}

.workorder-item .done-state {
  min-width: 76px;
  text-align: center;
}

.building-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.building-row strong {
  display: block;
  margin-bottom: 3px;
}

.empty-state {
  text-align: center;
  padding: 42px 20px;
  color: var(--muted);
}

.empty-state h3 {
  color: var(--ink);
}

@media (max-width: 980px) {
  .app-header,
  .workspace,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .app-header {
    display: grid;
  }

  .form-panel {
    position: static;
    max-height: none;
  }
}

@media (max-width: 640px) {
  .header-actions,
  .tabs,
  .toolbar,
  .building-form,
  .form-actions,
  .two-col,
  .three-col,
  .card-top,
  .task-grid,
  .workorder-item {
    display: grid;
    grid-template-columns: 1fr;
  }

  .toolbar select {
    width: 100%;
  }
}