:root {
  color-scheme: light;
  --bg: #f7f8f5;
  --panel: #ffffff;
  --ink: #1d2524;
  --muted: #65706b;
  --line: #dfe5df;
  --accent: #187a52;
  --danger: #b42318;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.dashboard { display: flex; flex-direction: column; }
.grid.dashboard-flow { display: contents; }
.dashboard-flow > .panel { margin-bottom: 18px; }
.admin-config-heading { order: 99; margin: 18px 0 10px; padding-top: 18px; border-top: 1px solid var(--line); }
.admin-config { order: 100; }

a { color: var(--accent); text-decoration: none; }
.topbar {
  height: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
.brand { font-weight: 750; color: var(--ink); }
.topbar nav { display: flex; gap: 16px; align-items: center; }
.shell { max-width: 1560px; margin: 0 auto; padding: 28px; }
.auth-panel { max-width: 420px; margin: 10vh auto; padding: 28px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.grid { display: grid; gap: 18px; margin-bottom: 18px; }
.two { grid-template-columns: minmax(0, 1.35fr) minmax(360px, 0.65fr); }
.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 18px; overflow: auto; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 18px; }
h1, h2 { margin-top: 0; letter-spacing: 0; }
h2 { font-size: 1rem; }
.muted { color: var(--muted); }
.error { color: var(--danger); }
.messages { display: grid; gap: 8px; margin-bottom: 16px; }
.message { border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; background: var(--panel); }
.message.error { border-color: #f3b1aa; background: #fff1ef; color: var(--danger); }
.stack { display: grid; gap: 12px; }
.inline-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 8px; margin-bottom: 14px; align-items: end; }
.check { display: flex; align-items: center; gap: 8px; font-weight: 650; }
.check input { min-height: auto; }
label { display: grid; gap: 6px; font-weight: 650; }
input, select, button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  font: inherit;
}
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  font: inherit;
}
button { background: var(--accent); border-color: var(--accent); color: white; cursor: pointer; }
button.secondary { background: #eef1ee; border-color: var(--line); color: var(--ink); }
button.danger { background: var(--danger); border-color: var(--danger); }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; border-bottom: 1px solid var(--line); padding: 8px; vertical-align: top; }
td input, td select { width: 100%; margin-bottom: 6px; }
.actions { min-width: 120px; }
.actions form { margin-top: 6px; }
.device-list { display: grid; gap: 14px; }
.device-program-grid { grid-template-columns: minmax(0, 1fr); }
.device-create-form {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  align-items: end;
}
.device-create-form > *,
.device-create-form label input,
.device-editor input,
.device-editor select { width: 100%; min-width: 0; }
.device-editor {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}
.field { display: grid; gap: 5px; grid-column: span 1; min-width: 0; }
.field label {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.device-active { align-self: end; min-height: 40px; }
.device-actions { align-self: end; }
.device-actions button { width: 100%; }
.device-delete { margin: -8px 0 10px 14px; }
.device-delete button { min-width: 96px; }
.device-measurements { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); }
.device-measurements span { padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); }
.duration-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.checkbox-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 8px; }
.program-start-form { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.program-list { display: grid; gap: 14px; margin-top: 14px; }
.program-editor {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}
.span-full { grid-column: 1 / -1; }
.program-steps { display: grid; gap: 8px; }
.program-step { display: grid; grid-template-columns: minmax(180px, 1fr) 110px 110px auto; gap: 8px; align-items: end; }
.program-step label { min-width: 0; }
.program-step label > span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
  text-transform: uppercase;
}
.program-step input, .program-step select { width: 100%; min-width: 0; }
.notification-list { display: grid; gap: 10px; margin-top: 16px; }
.notification-editor {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(130px, 0.7fr) auto auto auto;
  gap: 10px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}
.notification-editor > * { min-width: 0; }
.notification-editor input,
.notification-editor select,
.notification-editor textarea { width: 100%; min-width: 0; }
.notification-recipients, .notification-template { grid-column: 1 / -1; }
.tank-overview {
  display: grid;
  grid-template-columns: minmax(240px, 0.35fr) minmax(0, 0.65fr);
  gap: 18px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.tank-overview h3 { margin: 0 0 8px; }
.tank-chart {
  width: 100%;
  height: 300px;
  display: block;
  border: 1px solid #30363d;
  border-radius: 8px;
  background: #0d1117;
}
.chart-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}
.chart-stats div {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 10px 12px;
}
.chart-stats span {
  display: block;
  color: #8b949e;
  font-size: 0.72rem;
  font-weight: 750;
  text-transform: uppercase;
}
.chart-stats strong {
  display: block;
  color: #e6edf3;
  font-size: 1.1rem;
  margin-top: 4px;
}
.tank-chart text {
  fill: #8b949e;
  font-size: 12px;
  letter-spacing: 0;
}
.tank-chart line {
  stroke: #21262d;
  stroke-width: 1;
}
.tank-chart .min-threshold {
  stroke: #f85149;
  stroke-width: 1.5;
  stroke-dasharray: 4 5;
}
.tank-chart .threshold-label {
  fill: #f85149;
  font-size: 11px;
}
.tank-chart polygon {
  fill: rgba(88,166,255,0.12);
}
.tank-chart polyline {
  fill: none;
  stroke: #58a6ff;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.chart-meta {
  display: flex;
  gap: 14px;
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 8px;
}
.tank-bindings { display: grid; gap: 10px; margin-top: 18px; }
.tank-binding {
  display: grid;
  grid-template-columns: minmax(180px, 1.4fr) minmax(180px, 1fr) minmax(150px, 1fr) auto auto;
  gap: 10px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}
.section-list { display: grid; gap: 8px; }
.section-editor {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) 90px minmax(90px, auto) auto auto;
  gap: 8px;
  align-items: center;
}
.status { display: inline-flex; padding: 4px 10px; border-radius: 999px; font-weight: 700; }
.running { background: #dff5e8; color: #14683f; }
.interrupted { background: #fff1cf; color: #7a4d00; }
.idle { background: #eef1ee; color: var(--muted); }
.metric { font-size: 2rem; font-weight: 800; margin: 0; }
code { white-space: pre-wrap; }

.current-run-panel { margin-bottom: 18px; overflow: visible; }
.run-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.run-heading > div { display: flex; align-items: center; gap: 10px; }
.run-actions { display: flex; align-items: center; gap: 8px; }
.run-warning { padding: 10px 12px; border: 1px solid #e8c66a; border-radius: 6px; background: #fff8e5; color: #684500; }
.connection-offline, .connection-offline_pending { color: var(--danger) !important; font-weight: 700; }
.connection-online { color: var(--accent) !important; }
.button-link { display: flex; min-height: 40px; align-items: center; justify-content: center; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; }
.run-details { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.run-details > div { min-width: 0; padding: 12px; background: var(--panel); }
.run-details span, .run-details small { display: block; color: var(--muted); font-size: 0.78rem; }
.run-details strong { display: block; margin-top: 5px; overflow-wrap: anywhere; }
.run-details small { margin-top: 5px; }
.relay-statuses { margin-top: 16px; }
.relay-statuses h3 { margin: 0 0 8px; font-size: 0.85rem; }
.relay-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 8px; }
.relay-state { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 3px 10px; align-items: center; padding: 10px; border: 1px solid var(--line); border-radius: 6px; }
.relay-state span { min-width: 0; font-weight: 700; overflow-wrap: anywhere; }
.relay-state small { color: var(--muted); grid-column: 1; }
.relay-state strong { grid-column: 2; grid-row: 1 / span 2; text-transform: uppercase; }
.relay-on { color: var(--accent); }
.relay-off, .relay-unknown { color: var(--muted); }
.run-switch-form { display: grid; grid-template-columns: minmax(220px, 1fr) auto; gap: 10px; align-items: end; max-width: 560px; margin-top: 16px; }

@media (max-width: 820px) {
  .two, .three { grid-template-columns: 1fr; }
  .shell { padding: 16px; }
  .toolbar { align-items: stretch; flex-direction: column; }
  .device-editor { grid-template-columns: 1fr; }
  .device-create-form { grid-template-columns: 1fr 1fr; }
  .field, .span-2, .span-3 { grid-column: 1; }
  .program-editor { grid-template-columns: 1fr; }
  .program-step { grid-template-columns: 1fr; }
  .duration-grid { grid-template-columns: 1fr; }
  .tank-overview, .tank-binding { grid-template-columns: 1fr; }
  .section-editor { grid-template-columns: 1fr; }
  .chart-stats { grid-template-columns: 1fr 1fr; }
  .run-details { grid-template-columns: 1fr 1fr; }
  .notification-editor { grid-template-columns: 1fr 1fr; }
  .notification-recipients, .notification-template { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  .run-heading { align-items: stretch; flex-direction: column; }
  .run-heading button { width: 100%; }
  .run-details, .run-switch-form { grid-template-columns: 1fr; }
  .device-create-form { grid-template-columns: 1fr; }
  .notification-editor { grid-template-columns: 1fr; }
}