:root {
  color-scheme: light;
  --bg: #f5f7f8;
  --panel: #ffffff;
  --panel-soft: #f9fbfb;
  --text: #1f2a2e;
  --muted: #66757c;
  --line: #dbe3e6;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --blue: #2f6fbd;
  --green: #23835d;
  --amber: #b66b12;
  --gray: #7d8b91;
  --danger: #b42318;
  --shadow: 0 18px 44px rgba(31, 42, 46, 0.08);
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body,
#app {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: #eef4f3;
}

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

.login-brand {
  margin-bottom: 22px;
  color: var(--text);
}

.login-error {
  color: var(--danger);
  min-height: 20px;
  font-size: 13px;
}

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

button {
  cursor: pointer;
}

svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex: 0 0 auto;
}

.shell {
  height: 100vh;
  display: grid;
  grid-template-columns: 264px 1fr;
  overflow: hidden;
}

.sidebar {
  background: #102326;
  color: #eff7f6;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  height: 100vh;
  overflow: hidden;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #e1f4ef;
  color: #0f514d;
  font-weight: 800;
}

.brand strong,
.brand span {
  display: block;
}

.brand span {
  color: #a8c2c0;
  font-size: 13px;
  margin-top: 2px;
}

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

.nav-item {
  border: 0;
  border-radius: 8px;
  color: #bdd2d0;
  background: transparent;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  text-align: left;
}

.nav-item.active,
.nav-item:hover {
  background: #1d393c;
  color: #ffffff;
}

.sidebar-account {
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 18px;
  color: #a8c2c0;
  display: grid;
  gap: 6px;
  min-width: 0;
}

.sidebar-account strong {
  color: #ffffff;
  font-size: 16px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-account span,
.sidebar-account small {
  font-size: 12px;
}

.sidebar-account .secondary {
  width: 100%;
  justify-content: center;
  margin-top: 6px;
}

.workspace {
  min-width: 0;
  padding: 26px;
  height: 100vh;
  overflow: auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 22px;
}

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

h1 {
  font-size: 25px;
  line-height: 1.2;
}

h2 {
  font-size: 18px;
}

h3 {
  font-size: 15px;
}

.topbar p,
.panel-head p,
.muted {
  color: var(--muted);
  margin-top: 6px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(86px, 1fr));
  gap: 10px;
}

.dashboard-view {
  display: grid;
  gap: 18px;
}

.dashboard-hero {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 26px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 24px;
  align-items: end;
}

.dashboard-kicker {
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
}

.dashboard-hero h1 {
  margin-top: 10px;
  font-size: 30px;
}

.dashboard-hero p {
  color: var(--muted);
  margin-top: 10px;
  line-height: 1.6;
  max-width: 720px;
}

.dashboard-hero-stat {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  padding: 18px;
}

.dashboard-hero-stat span,
.dashboard-hero-stat small {
  color: var(--muted);
  display: block;
  font-size: 12px;
}

.dashboard-hero-stat strong {
  display: block;
  font-size: 42px;
  line-height: 1;
  margin: 10px 0;
}

.dashboard-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.85fr);
  gap: 18px;
}

.metric {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 14px;
  min-width: 92px;
}

.metric span,
.summary-tile span {
  color: var(--muted);
  display: block;
  font-size: 12px;
}

.metric strong,
.summary-tile strong {
  font-size: 24px;
  margin-top: 4px;
  display: block;
}

.metric.active strong {
  color: var(--green);
}

.metric.reserved strong {
  color: var(--blue);
}

.metric.empty strong {
  color: var(--gray);
}

.status-chart {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}

.donut-chart {
  width: 220px;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, var(--panel) 0 54%, transparent 55%),
    conic-gradient(
      var(--green) 0 calc(var(--active) * 1%),
      var(--blue) calc(var(--active) * 1%) calc((var(--active) + var(--reserved)) * 1%),
      #c7d1d5 calc((var(--active) + var(--reserved)) * 1%) 100%
    );
  display: grid;
  place-items: center;
  text-align: center;
}

.donut-chart span,
.donut-chart small {
  grid-area: 1 / 1;
}

.donut-chart span {
  font-size: 30px;
  font-weight: 800;
  transform: translateY(-8px);
}

.donut-chart small {
  color: var(--muted);
  font-size: 12px;
  transform: translateY(22px);
}

.chart-legend {
  display: grid;
  gap: 10px;
}

.chart-legend-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

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

.room-capacity-list {
  display: grid;
  gap: 14px;
}

.room-capacity-row {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.room-capacity-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.room-capacity-head strong,
.room-capacity-head span,
.room-capacity-head em {
  display: block;
}

.room-capacity-head span,
.room-capacity-head em,
.room-capacity-meta {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.room-capacity-head em {
  white-space: nowrap;
}

.stacked-capacity-track {
  height: 13px;
  border-radius: 99px;
  background: #edf2f3;
  overflow: hidden;
  display: flex;
}

.stacked-capacity-track i {
  display: block;
  height: 100%;
  min-width: 0;
}

.stacked-capacity-track i.active {
  background: var(--green);
}

.stacked-capacity-track i.reserved {
  background: var(--blue);
}

.stacked-capacity-track i.empty {
  background: #c7d1d5;
}

.room-capacity-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.capacity-track {
  height: 12px;
  border-radius: 99px;
  background: #edf2f3;
  overflow: hidden;
}

.capacity-track i {
  display: block;
  height: 100%;
  border-radius: inherit;
}

.capacity-track i.active {
  background: var(--green);
}

.capacity-track i.reserved {
  background: var(--blue);
}

.capacity-track i.empty {
  background: #a8b5ba;
}

.content-grid,
.billing-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 18px;
  min-width: 0;
}

.panel.large {
  min-height: 640px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.panel-head.compact {
  margin-bottom: 14px;
}

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

select,
input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  padding: 10px 11px;
  outline: none;
}

select:focus,
input:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
}

.toolbar select,
.toolbar input {
  width: auto;
  min-width: 170px;
}

.legend,
.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 99px;
}

.status-dot.empty,
.pill.empty {
  background: #eef2f3;
  color: #526269;
}

.status-dot.reserved,
.pill.reserved {
  background: #e8f0ff;
  color: #245ba6;
}

.status-dot.active,
.pill.active {
  background: #e7f7ef;
  color: #1f7a55;
}

.pill.ended {
  background: #f6ebe8;
  color: #9f2d21;
}

.pill.sampled {
  background: #fff2d8;
  color: #995b00;
}

.segmented {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--muted);
  border-radius: 8px;
  padding: 8px 12px;
}

.segmented.active {
  border-color: var(--primary);
  color: var(--primary);
  background: #e9f6f4;
}

.rack-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(118px, 1fr));
  gap: 10px;
}

.slot {
  border: 1px solid var(--line);
  min-height: 118px;
  border-radius: 8px;
  padding: 11px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 7px;
  background: #ffffff;
  color: var(--text);
  position: relative;
}

.slot:hover,
.slot.selected {
  outline: 3px solid rgba(15, 118, 110, 0.18);
  border-color: var(--primary);
}

.slot.active {
  background: #e9f7ef;
  border-color: #9bd2b5;
}

.slot.reserved {
  background: #edf6ff;
  border-color: #b8d8f4;
}

.slot.empty {
  background: #f3f5f6;
  border-color: #d8e0e3;
  color: #7a888e;
}

.slot.batch-selected {
  box-shadow: inset 0 0 0 2px var(--primary);
}

.slot-selected-label {
  position: absolute;
  right: 8px;
  top: 8px;
  border-radius: 999px;
  background: var(--primary);
  color: #ffffff;
  padding: 3px 7px;
  font-size: 12px;
  font-weight: 700;
}

.slot-code {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.slot-iacuc {
  color: #163b37;
  font-size: 14px;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 34px;
}

.slot.reserved .slot-iacuc {
  color: #234f86;
}

.slot-person,
.slot-date {
  color: #4f6268;
  font-size: 12px;
  line-height: 1.25;
}

.slot-date {
  margin-top: auto;
  font-weight: 700;
}

.slot-empty-text {
  color: #87959b;
  font-size: 16px;
  margin: auto 0;
  text-align: center;
}

.slot small,
.slot-person,
.slot-date {
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.detail-panel {
  align-self: start;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 700;
}

.form {
  display: grid;
  gap: 13px;
}

.form label {
  display: grid;
  gap: 7px;
  color: #47565c;
  font-size: 13px;
  font-weight: 700;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.form-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.section-divider {
  height: 1px;
  background: var(--line);
  margin: 20px 0;
}

.room-checkboxes {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.room-checkboxes label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.room-checkboxes input {
  width: auto;
}

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

.user-row,
.audit-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  padding: 12px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.user-row p,
.audit-row p {
  color: var(--muted);
  margin-top: 4px;
  font-size: 13px;
}

.user-row span,
.audit-row time {
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

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

.compact-actions {
  margin-top: 10px;
}

.sampling-panel {
  border: 1px solid #f1d19b;
  background: #fff9ed;
  border-radius: 8px;
  padding: 12px;
  display: grid;
  gap: 10px;
}

.sampling-panel label {
  color: #73501c;
}

.selected-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
  max-height: 108px;
  overflow: auto;
}

.selected-list span {
  border: 1px solid #cce2df;
  background: #edf4f3;
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 700;
}

.warning-box {
  border: 1px solid #f0beb7;
  background: #fff5f3;
  color: #7f251c;
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 14px;
}

.warning-box strong {
  display: block;
}

.warning-box p {
  margin-top: 8px;
  color: #9f2d21;
  line-height: 1.45;
}

.primary,
.secondary,
.ghost {
  border: 0;
  border-radius: 8px;
  padding: 10px 13px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  white-space: nowrap;
}

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

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

.secondary {
  background: #edf4f3;
  color: var(--primary-dark);
  border: 1px solid #cce2df;
}

.ghost {
  background: #f8eeee;
  color: var(--danger);
}

.history {
  margin-top: 20px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.history h3 {
  margin-bottom: 10px;
}

.history-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  margin-top: 8px;
}

.history-item p {
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
}

.statement-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

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

.summary-tile strong {
  font-size: 20px;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  background: #ffffff;
}

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

th {
  background: #f3f7f7;
  color: #4d5d64;
  font-size: 13px;
}

tr:last-child td {
  border-bottom: 0;
}

.rule-list {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

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

.rule-card strong,
.rule-card span {
  display: block;
}

.rule-card span {
  margin-top: 4px;
  color: var(--primary);
  font-weight: 700;
}

.rule-card p {
  color: var(--muted);
  margin-top: 6px;
  font-size: 13px;
}

.update-card .secondary {
  margin-top: 10px;
}

.rule-card .error-text {
  color: var(--danger);
}

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

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

.room-tree-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.room-tree-head p {
  color: var(--muted);
  margin-top: 6px;
}

.rack-tree {
  margin-top: 12px;
  display: grid;
  gap: 8px;
}

.rack-tree-item {
  margin-left: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.rack-name {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 180px;
}

.rack-name small {
  color: var(--muted);
}

.tree-branch {
  width: 18px;
  height: 22px;
  border-left: 2px solid #c8d4d7;
  border-bottom: 2px solid #c8d4d7;
  border-bottom-left-radius: 6px;
}

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

.tree-actions span {
  border: 1px solid var(--line);
  background: #ffffff;
  border-radius: 999px;
  padding: 6px 10px;
  color: #53646b;
  font-size: 13px;
}

.icon-danger {
  width: 34px;
  height: 34px;
  border: 1px solid #f1c8c3;
  background: #fff5f3;
  color: var(--danger);
  border-radius: 8px;
  display: inline-grid;
  place-items: center;
}

.icon-danger:hover {
  background: #fbe9e6;
  border-color: #e7a8a0;
}

.empty-state {
  min-height: 320px;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 1180px) {
  .shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 5;
    flex-direction: row;
    align-items: center;
    padding: 14px 16px;
    height: auto;
    overflow-x: auto;
  }

  .nav {
    grid-auto-flow: column;
    margin-left: auto;
  }

  .sidebar-account {
    margin-top: 0;
    border-top: 0;
    border-left: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 0;
    padding-left: 14px;
    min-width: 132px;
  }

  .sidebar-account .secondary {
    padding: 6px 10px;
  }

  .content-grid,
  .billing-layout,
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  body {
    overflow: auto;
  }

  .shell {
    height: auto;
    min-height: 100vh;
    overflow: visible;
  }

  .sidebar {
    overflow-x: auto;
  }

  .workspace {
    padding: 16px;
    height: auto;
    overflow: visible;
  }

  .topbar,
  .panel-head,
  .room-tree-head,
  .rack-tree-item {
    display: grid;
  }

  .metrics,
  .dashboard-metrics,
  .statement-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-hero,
  .status-chart {
    grid-template-columns: 1fr;
  }

  .dashboard-hero h1 {
    font-size: 25px;
  }

  .dashboard-hero-stat,
  .donut-chart {
    width: 100%;
    max-width: 260px;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .toolbar,
  .toolbar select,
  .toolbar input,
  .primary,
  .secondary,
  .ghost {
    width: 100%;
  }

  .nav-item span,
  .brand span {
    display: none;
  }
}