:root {
  color-scheme: light;
  --bg: #eef1f4;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --text: #16202a;
  --muted: #5f6d7a;
  --line: #d6dde5;
  --focus: #1f6feb;
  --normal: #177245;
  --normal-bg: #e7f6ee;
  --warning: #936800;
  --warning-bg: #fff3c4;
  --danger: #b42318;
  --danger-bg: #ffe4df;
  --unknown: #5f6d7a;
  --unknown-bg: #e7ebef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}

button {
  font: inherit;
}

button:focus-visible {
  outline: 3px solid rgba(31, 111, 235, 0.28);
  outline-offset: 2px;
}

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

h1 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 1;
}

h2 {
  margin-bottom: 0;
  font-size: 1.05rem;
}

.client-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 28px;
}

.admin-shell {
  width: min(1180px, 100%);
  margin: 0 auto 28px;
  padding: 0 28px 28px;
}

.client-shell__header {
  display: flex;
  gap: 20px;
  align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.admin-shell__header {
  display: flex;
  gap: 20px;
  align-items: flex-end;
  justify-content: space-between;
  margin-top: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px 8px 0 0;
  background: var(--panel);
}

.eyebrow,
.section-kicker,
.metric-label,
.section-head span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.lead {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1rem;
}

.refresh-button,
.back-button,
.detail-tabs button,
.range-tabs button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.refresh-button,
.back-button {
  min-width: 116px;
  padding: 0 16px;
}

.refresh-button:hover,
.back-button:hover,
.detail-tabs button:hover,
.range-tabs button:hover {
  border-color: #aab6c3;
}

.refresh-button:disabled,
.back-button:disabled,
.detail-tabs button:disabled,
.range-tabs button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.status-line {
  margin: 18px 0;
  min-height: 46px;
  border-left: 5px solid var(--line);
  padding: 13px 14px;
  background: var(--panel);
  color: var(--muted);
  font-weight: 700;
}

.status-line--compact {
  min-height: 0;
  margin: 16px 0 0;
}

.status-line[data-tone="loading"] {
  border-left-color: var(--focus);
  color: var(--text);
}

.status-line[data-tone="error"] {
  border-left-color: var(--danger);
  color: var(--danger);
}

.status-line[data-tone="empty"],
.status-line[data-tone="warning"] {
  border-left-color: var(--warning);
  color: var(--warning);
}

.session-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px 14px;
  align-items: end;
  margin: 18px 0 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--panel);
}

.session-form {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) minmax(180px, 280px) auto;
  gap: 10px;
  align-items: end;
}

.session-form label {
  align-self: center;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.session-form input {
  min-height: 44px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 12px;
  color: var(--text);
  font: inherit;
}

.session-form button,
.session-clear {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 14px;
  background: var(--panel-soft);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.session-form button:hover,
.session-clear:hover {
  border-color: #aab6c3;
}

.session-form button:disabled,
.session-clear:disabled {
  cursor: wait;
  opacity: 0.7;
}

.session-panel p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.session-panel p[data-tone="ok"] {
  color: var(--normal);
}

.session-panel p[data-tone="error"] {
  color: var(--danger);
}

.admin-login {
  display: grid;
  grid-template-columns: minmax(120px, 160px) minmax(160px, 1fr) minmax(120px, 160px) minmax(160px, 1fr) auto auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-top: 0;
  padding: 14px;
  background: var(--panel);
}

.admin-login label,
.admin-create-form label,
.admin-assignment-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.admin-login input,
.admin-create-form input,
.admin-assignment-form select {
  min-height: 42px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 10px;
  color: var(--text);
  font: inherit;
}

.admin-login button,
.admin-secondary,
.admin-create-form button,
.admin-assignment-form button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 14px;
  background: var(--panel-soft);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.admin-login button:hover,
.admin-secondary:hover,
.admin-create-form button:hover,
.admin-assignment-form button:hover {
  border-color: #aab6c3;
}

.admin-login button:disabled,
.admin-secondary:disabled,
.admin-create-form button:disabled,
.admin-assignment-form button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.admin-status,
.admin-blocked {
  margin: 0;
  border: 1px solid var(--line);
  border-top: 0;
  padding: 12px 14px;
  background: var(--panel);
  color: var(--muted);
  font-weight: 700;
}

.admin-status[data-tone="ok"] {
  color: var(--normal);
}

.admin-status[data-tone="loading"] {
  color: var(--focus);
}

.admin-status[data-tone="warning"] {
  color: var(--warning);
}

.admin-status[data-tone="error"],
.admin-blocked {
  color: var(--danger);
}

.admin-workspace {
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 8px 8px;
  background: var(--panel);
}

.admin-status--entity {
  border-right: 0;
  border-left: 0;
}

.admin-assignment-panel {
  display: grid;
  gap: 14px;
  margin: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.admin-assignment-panel__head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  justify-content: space-between;
}

.admin-assignment-panel__head h3,
.admin-assignment-grid h4 {
  margin: 0;
  font-size: 0.94rem;
}

.admin-assignment-panel__head span,
.admin-assignment-grid h4 {
  color: var(--muted);
  font-weight: 800;
}

.admin-assignment-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr)) auto;
  gap: 12px;
  align-items: end;
}

.admin-assignment-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.admin-assignment-grid section {
  display: grid;
  gap: 10px;
  min-width: 0;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.admin-assignment-list {
  display: grid;
  gap: 8px;
}

.admin-assignment-item {
  display: grid;
  grid-template-columns: minmax(84px, 0.45fr) minmax(0, 1fr);
  gap: 4px 10px;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  font-size: 0.86rem;
}

.admin-assignment-item dt {
  color: var(--muted);
  font-weight: 700;
}

.admin-assignment-item dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.admin-assignment-result {
  min-height: 108px;
  margin: 0;
  padding: 10px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  font: 0.82rem/1.45 Consolas, "Courier New", monospace;
  white-space: pre-wrap;
}

.admin-entity-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 12px;
  padding: 16px;
}

.admin-entity {
  display: grid;
  gap: 12px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--panel-soft);
}

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

.admin-entity__head span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.admin-entity__status,
.admin-items p,
.admin-create-form__title {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.admin-entity__status[data-tone="warning"] {
  color: var(--warning);
}

.admin-items,
.admin-create-form {
  display: grid;
  gap: 10px;
}

.admin-item {
  display: grid;
  grid-template-columns: minmax(88px, 0.5fr) minmax(0, 1fr);
  gap: 6px 10px;
  margin: 0;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.admin-item dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.admin-item dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.admin-create-form {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.client-layout {
  display: block;
}

.equipment-panel,
.detail-panel,
.history-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.equipment-panel,
.detail-panel {
  overflow: hidden;
}

.section-head {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.section-head--detail {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: flex-start;
}

.equipment-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  padding: 18px;
}

.equipment-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  width: 100%;
  min-height: 112px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  text-align: left;
}

.equipment-card:last-child {
  border-bottom: 1px solid var(--line);
}

.equipment-card:hover,
.equipment-card[aria-current="true"] {
  background: var(--panel-soft);
}

.equipment-card__main {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.equipment-card__name {
  overflow-wrap: anywhere;
  font-size: 1rem;
  font-weight: 800;
}

.equipment-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  color: var(--muted);
  font-size: 0.88rem;
}

.equipment-card__temp {
  align-self: center;
  font-size: 1.5rem;
  font-weight: 800;
  white-space: nowrap;
}

.detail-id {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.detail-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 8px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.detail-tabs button {
  background: var(--panel-soft);
}

.detail-tabs button[aria-selected="true"] {
  border-color: var(--focus);
  background: #e8f0ff;
  color: #174ea6;
}

.state-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 96px;
  min-height: 34px;
  border-radius: 999px;
  padding: 0 12px;
  font-size: 0.82rem;
  font-weight: 800;
  text-align: center;
  white-space: nowrap;
}

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

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

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

.state-badge--unknown,
.state-badge--offline,
.state-badge--disabled {
  background: var(--unknown-bg);
  color: var(--unknown);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--line);
}

.detail-grid > div {
  display: grid;
  gap: 10px;
  min-width: 0;
  padding: 22px;
  background: var(--panel-soft);
}

.detail-grid strong {
  overflow-wrap: anywhere;
}

.alert-state-block__meta {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.metric-value {
  font-size: clamp(2.4rem, 8vw, 4.8rem);
  line-height: 0.95;
}

.range-tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(58px, 1fr));
  gap: 8px;
  padding: 16px 18px;
}

.range-tabs button {
  padding: 0 8px;
}

.range-tabs button[aria-pressed="true"] {
  border-color: var(--focus);
  background: #e8f0ff;
  color: #174ea6;
}

.history-panel {
  margin: 0 18px 18px;
  overflow: hidden;
}

.chart-frame {
  position: relative;
  min-height: 280px;
  padding: 18px;
}

.temperature-chart {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 7;
}

.chart-grid {
  stroke: #dbe2ea;
  stroke-width: 1;
}

.chart-line {
  fill: none;
  stroke: var(--focus);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 4;
}

.chart-point {
  fill: var(--focus);
  stroke: var(--panel);
  stroke-width: 3;
}

.chart-label {
  fill: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.empty-panel {
  padding: 20px;
  color: var(--muted);
  font-weight: 700;
}

[hidden] {
  display: none !important;
}

@media (max-width: 860px) {
  .client-shell {
    padding: 18px;
  }

  .admin-shell {
    padding: 0 18px 18px;
  }

  .client-shell__header,
  .admin-shell__header,
  .admin-login,
  .admin-assignment-form,
  .admin-assignment-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .client-shell__header,
  .admin-shell__header {
    align-items: stretch;
  }

  .refresh-button,
  .admin-secondary {
    width: 100%;
  }

  .session-panel,
  .session-form {
    grid-template-columns: 1fr;
  }

  .session-clear,
  .session-form button,
  .admin-login button,
  .admin-assignment-form button {
    width: 100%;
  }

  .section-head--detail {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .back-button {
    width: 100%;
  }

  .detail-tabs {
    grid-template-columns: 1fr 1fr;
  }

  .range-tabs {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
  }

  .range-tabs button {
    min-height: 42px;
    padding: 0 4px;
  }

  .history-panel {
    margin: 0 12px 12px;
  }

  .chart-frame {
    min-height: 220px;
    padding: 12px;
  }
}

@media (max-width: 520px) {
  .equipment-card {
    grid-template-columns: 1fr;
  }

  .equipment-card__temp {
    justify-self: start;
  }

  .state-badge {
    min-width: 84px;
  }
}