:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --ink: #1f2933;
  --muted: #6b7785;
  --line: #d9e1e7;
  --primary: #16735f;
  --primary-dark: #105f50;
  --blue: #256f9c;
  --warning: #a36512;
  --danger: #b33b32;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
}

.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 18px 10px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
}

.brand-title {
  font-size: 18px;
  line-height: 1.15;
  font-weight: 800;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 12px;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.mqtt-pill,
.admin-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f8fafb;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--danger);
}

.mqtt-pill.connected .status-dot {
  background: var(--primary);
}

.main-tabs {
  display: flex;
  gap: 6px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 18px 12px;
  overflow-x: auto;
}

.tab-link {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  border-radius: 8px;
  padding: 8px 12px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  font-weight: 800;
}

.tab-link.active,
.tab-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.app-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.page-head,
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-head {
  margin-bottom: 12px;
}

.page-head h1 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: 0;
}

.page-head p {
  margin: 3px 0 0;
  color: var(--muted);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.panel + .panel {
  margin-top: 12px;
}

.panel h2,
.modal-title {
  margin: 0;
  font-size: 16px;
  line-height: 1.2;
  letter-spacing: 0;
}

.panel-note {
  margin: 3px 0 0;
  color: var(--muted);
}

.narrow-panel {
  max-width: 760px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.stat-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.stat-card strong {
  display: block;
  margin-top: 7px;
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: 0;
}

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

.monitoring-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, .75fr);
  gap: 12px;
}

.chart-panel {
  min-width: 0;
}

.chart-box {
  position: relative;
  height: 310px;
  margin-top: 12px;
}

.chart-box.compact-chart {
  height: 280px;
}

.chart-box canvas {
  width: 100% !important;
  height: 100% !important;
}

.simple-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.quick-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.search-field {
  position: relative;
  min-width: 240px;
  flex: 1;
}

.search-field i {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.search-field .form-control {
  padding-left: 34px;
}

.simple-toolbar > .form-control,
.simple-toolbar > .form-select {
  width: auto;
  min-width: 150px;
  flex: 0 0 auto;
}

.toolbar-end {
  margin-left: auto;
  align-self: end;
}

.simple-toolbar #attendanceEmployee {
  min-width: 240px;
}

.form-control,
.form-select {
  border-color: var(--line);
  border-radius: 8px;
  min-height: 36px;
  font-size: 14px;
}

.form-label {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.btn {
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-weight: 800;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

.compact-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  color: var(--muted);
  font-weight: 700;
  white-space: nowrap;
}

.compact-check .form-check-input {
  margin: 0;
}

.table {
  margin: 0;
  --bs-table-bg: transparent;
}

.table th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.table td {
  vertical-align: middle;
}

.action-cell {
  white-space: nowrap;
}

.icon-btn {
  width: 32px;
  height: 32px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  background: #fff;
}

.empty-row {
  text-align: center;
  color: var(--muted);
  padding: 22px !important;
}

.badge {
  border-radius: 999px;
  font-weight: 900;
}

.badge-accepted,
.badge-enrolled,
.badge-active {
  background: #dff5ec;
  color: #0f674d;
}

.badge-unknown,
.badge-pending {
  background: #fff0d6;
  color: #86540f;
}

.badge-duplicate {
  background: #e8eef5;
  color: #4e5f70;
}

.badge-inactive,
.badge-deleted {
  background: #fde2de;
  color: #923229;
}

.enroll-grid {
  display: grid;
  grid-template-columns: minmax(240px, 2fr) minmax(120px, .8fr) minmax(180px, 1fr) auto;
  align-items: end;
  gap: 10px;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .8fr);
  gap: 12px;
}

.status-list {
  margin: 0;
}

.status-list div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}

.status-list div:last-child {
  border-bottom: 0;
}

.status-list dt {
  color: var(--muted);
  font-size: 12px;
}

.status-list dd {
  margin: 0;
  min-width: 0;
  word-break: break-word;
  font-weight: 800;
}

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

.settings-inline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.app-alert {
  border-radius: 8px;
  margin-bottom: 12px;
}

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #eef3f5;
  padding: 18px;
}

.login-shell {
  width: min(100%, 390px);
}

.login-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 16px 40px rgba(31, 41, 51, .08);
}

.login-mark {
  margin-bottom: 14px;
}

.login-panel h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: 0;
}

.login-panel p {
  color: var(--muted);
  margin: 3px 0 18px;
}

@media (max-width: 1000px) {
  .stats-grid {
    grid-template-columns: repeat(3, minmax(140px, 1fr));
  }

  .two-column,
  .monitoring-grid,
  .enroll-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions {
    justify-content: flex-start;
  }

  .app-main {
    padding: 14px;
  }

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

  .page-head,
  .panel-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .simple-toolbar > .form-control,
  .simple-toolbar > .form-select,
  .simple-toolbar #attendanceEmployee,
  .search-field {
    width: 100%;
    min-width: 0;
    flex: 1 1 100%;
  }

  .simple-toolbar .btn,
  .quick-actions .btn {
    width: 100%;
  }

  .toolbar-end {
    margin-left: 0;
    width: 100%;
  }
}