:root {
  --bg: #f5f7fa;
  --panel: #fff;
  --ink: #17252b;
  --muted: #647880;
  --border: #dce5e8;
  --accent: #087a68;
  --sidebar: #102d2b;
  --shadow: 0 3px 20px #122a2908;
  color-scheme: light;
  font:
    14px/1.5 system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
}
:root[data-theme='dark'] {
  --bg: #101b20;
  --panel: #192a30;
  --ink: #edf5f5;
  --muted: #a1b8bf;
  --border: #2f444c;
  --accent: #55cbb5;
  --sidebar: #091b1c;
  color-scheme: dark;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}
a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
h1,
h2,
p {
  margin-top: 0;
}
h1 {
  font-size: 30px;
  letter-spacing: -1px;
  line-height: 1.25;
  margin-bottom: 0;
}
h2 {
  font-size: 17px;
  letter-spacing: -0.3px;
}
small {
  font-size: 12px;
}
.muted {
  color: var(--muted);
}
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 244px;
  padding: 28px 20px;
  background: var(--sidebar);
  color: #d2e4df;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 20px;
  font-weight: 700;
  color: inherit;
  flex-wrap: wrap;
}
.brand .muted {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-left: 45px;
  margin-top: -13px;
}
.brandmark {
  background: #45c0a7;
  color: #102d2b;
  font-size: 25px;
  display: inline-grid;
  place-items: center;
  width: 35px;
  height: 35px;
  border-radius: 11px;
}
.nav-label {
  font-size: 10px;
  letter-spacing: 1.8px;
  color: #8faeaa;
  margin: 30px 10px 8px;
}
nav {
  display: grid;
  gap: 4px;
}
nav a {
  color: #d0e2de;
  padding: 9px 11px;
  border-radius: 7px;
  font-size: 13px;
}
nav a:hover,
nav a.active {
  background: #ffffff14;
  color: white;
  text-decoration: none;
}
.sidebar-bottom {
  margin-top: auto;
  padding-top: 30px;
  display: grid;
  gap: 3px;
}
.sidebar-bottom small {
  color: #8faeaa;
}
.workspace {
  margin-left: 244px;
}
.topbar {
  height: 76px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 38px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.topbar form {
  margin-right: auto;
  width: min(420px, 100%);
}
.topbar input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  width: 100%;
}
main {
  max-width: 1560px;
  margin: auto;
  padding: 34px 38px;
}
.page-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 19px;
  gap: 16px;
}
.eyebrow {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 9px;
}
.badge {
  font-size: 11px;
  border: 1px solid var(--border);
  padding: 5px 10px;
  border-radius: 30px;
  color: var(--muted);
  white-space: nowrap;
}
.lead {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 27px;
}
.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 32px;
}
.summary,
.panel,
.controller-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.summary {
  padding: 22px;
  display: grid;
  gap: 8px;
}
.summary span {
  color: var(--muted);
  font-size: 12px;
}
.summary strong {
  font-size: 30px;
  font-weight: 650;
}
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 8px 0 17px;
}
.section-heading h2 {
  margin: 0;
}
.controller-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.controller-card {
  display: block;
  padding: 23px;
  color: var(--ink);
  transition:
    border-color 0.15s,
    transform 0.15s;
}
.controller-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  text-decoration: none;
}
.card-top,
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
}
.card-top {
  margin-bottom: 20px;
}
.status:before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: currentColor;
}
.healthy {
  color: #078c68;
}
.late {
  color: #a86c0d;
}
.offline {
  color: #bd4d51;
}
.controller-card h2 {
  font-size: 20px;
  margin-bottom: 4px;
}
.controller-card p {
  font-size: 12px;
}
.traffic-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 26px 0 15px;
}
.traffic-pair div {
  display: grid;
  gap: 6px;
}
.traffic-pair small {
  color: var(--muted);
}
.traffic-pair strong {
  font-size: 21px;
  font-weight: 600;
}
.card-footer {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  color: var(--muted);
}
.sparkline {
  height: 55px;
  margin-bottom: 12px;
}
.attention {
  background: #a86c0d13;
  color: #a86c0d;
  border-radius: 6px;
  padding: 8px;
  margin: 12px 0 0;
}
.panel {
  padding: 24px;
  margin-bottom: 20px;
  min-width: 0;
}
.chart-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.chart-grid .panel {
  margin: 0;
}
.chart {
  height: 270px;
  min-width: 0;
}
.chart.large {
  height: 400px;
}
.mini-chart {
  height: 160px;
}
.stats {
  font-size: 11px;
  margin-top: 12px;
}
.stats table {
  font-size: 11px;
}
.stats th,
.stats td {
  padding: 7px 5px;
}
.info-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding: 17px 21px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 22px 0;
  background: var(--panel);
  font-size: 12px;
}
.info-strip strong {
  margin-right: 6px;
}
.filter-row {
  display: flex;
  align-items: end;
  flex-wrap: wrap;
  gap: 14px;
  margin: 18px 0;
}
.filter-row label {
  flex: 1;
  min-width: 130px;
}
.filter-row button {
  margin-bottom: 1px;
}
label {
  display: grid;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
}
input,
select,
textarea {
  font: inherit;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 9px 10px;
  min-width: 0;
  width: 100%;
}
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
input[type='checkbox'] {
  width: auto;
}
.inline {
  display: flex;
  align-items: center;
  gap: 7px;
}
button {
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 10px 15px;
  font-weight: 600;
}
button:disabled {
  opacity: 0.5;
  cursor: wait;
}
.primary {
  background: var(--accent);
  color: white;
}
.secondary {
  background: var(--panel);
  color: var(--ink);
  border-color: var(--border);
}
.danger {
  background: #b72f42;
  color: white;
}
.text-button {
  background: none;
  color: #a5c5bd;
  padding: 6px 0;
}
.table-wrap {
  overflow: auto;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 12px;
  text-align: left;
}
th {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.7px;
  background: var(--bg);
}
td,
th {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.pill {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 13px;
  margin: 4px;
}
.user-row {
  display: flex;
  align-items: end;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.user-row strong {
  min-width: 180px;
  flex: 1;
}
.user-row label {
  max-width: 230px;
}
.notice {
  padding: 20px;
  background: #b27c1312;
  border: 1px solid #b27c1340;
  border-radius: 10px;
  margin-bottom: 22px;
}
.notice p {
  margin-bottom: 0;
}
.error {
  color: #b72f42;
  background: #b72f4210;
  padding: 12px;
  border-radius: 6px;
}
.empty {
  text-align: center;
  padding: 60px;
  color: var(--muted);
}
.config-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  font-size: 13px;
  gap: 12px;
}
.config-list dd {
  margin: 0;
}
.login-shell {
  display: grid;
  place-items: center;
  min-height: 100vh;
  background: radial-gradient(ellipse at 10% 0%, #098a6d22, transparent 65%);
  padding: 24px;
}
.login-card {
  width: min(430px, 100%);
  padding: 42px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 20px 90px #12362b12;
}
.login-card h1 {
  font-size: 35px;
  margin: 36px 0 12px;
}
.login-card form {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}
.login-card button {
  margin-top: 8px;
  padding: 13px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}
footer {
  padding: 30px 38px;
  color: var(--muted);
  font-size: 11px;
}
code {
  overflow-wrap: anywhere;
}
#maintenance-confirm {
  max-width: 350px;
  margin-top: 20px;
}
#maintenance-confirm button {
  margin-top: 12px;
}
[hidden] {
  display: none !important;
}
@media (max-width: 1100px) {
  .sidebar {
    width: 210px;
  }
  .workspace {
    margin-left: 210px;
  }
  .chart-grid {
    grid-template-columns: 1fr;
  }
  main {
    padding: 26px;
  }
  .topbar {
    padding: 0 26px;
  }
  .controller-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 700px) {
  .sidebar {
    position: static;
    width: auto;
    padding: 16px;
  }
  .sidebar .nav-label,
  .sidebar-bottom,
  #controller-nav {
    display: none;
  }
  .sidebar nav {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    margin-top: 12px;
  }
  .sidebar nav a {
    padding: 5px 8px;
    font-size: 11px;
  }
  .workspace {
    margin-left: 0;
  }
  .topbar {
    height: 65px;
    padding: 0 16px;
    gap: 10px;
  }
  .topbar > .muted {
    display: none;
  }
  main {
    padding: 24px 16px;
  }
  h1 {
    font-size: 25px;
  }
  .summary-grid {
    gap: 8px;
  }
  .summary {
    padding: 13px;
  }
  .summary strong {
    font-size: 25px;
  }
  .summary span {
    font-size: 10px;
  }
  .page-heading > .badge {
    display: none;
  }
  .panel {
    padding: 17px;
  }
  .controller-grid {
    grid-template-columns: 1fr;
  }
  .chart {
    height: 240px;
  }
  .section-heading {
    flex-wrap: wrap;
  }
  .brand .muted {
    margin: 0;
  }
  .login-card {
    padding: 28px;
  }
}

.stats {
  overflow-x: auto;
  max-width: 100%;
}