/* ── Design Tokens (Stitch "Digital Sanctuary" dark theme) ── */
:root {
  --bg: #0c0e12;
  --surface-container-lowest: #000000;
  --surface-container-low: #111319;
  --surface-container: #161a21;
  --surface-container-high: #1b2029;
  --surface-container-highest: #202631;
  --surface-bright: #252c39;

  --primary: #e9c349;
  --primary-container: #574500;
  --primary-dim: #dab53d;
  --secondary: #43aea4;
  --secondary-container: #00433f;
  --error: #ee7d77;
  --error-dim: #bb5551;
  --error-container: #7f2927;

  --on-surface: #e0e5f5;
  --on-surface-variant: #a5abb9;
  --outline: #6f7683;
  --outline-variant: #424854;

  --text: var(--on-surface);
  --text-muted: var(--on-surface-variant);
  --text-bright: var(--on-surface);
  --border: var(--outline-variant);
  --bg-card: var(--surface-container-high);
  --bg-input: var(--surface-container-low);

  /* Sidebar */
  --sidebar-width: 256px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--on-surface);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dim); }

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
}

/* ── Sidebar (desktop) ── */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  padding: 32px 0 80px;
  z-index: 40;
}

.sidebar-brand {
  padding: 0 24px;
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(233, 195, 73, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-brand-icon .material-symbols-outlined {
  color: var(--primary);
  font-variation-settings: 'FILL' 1, 'wght' 300, 'GRAD' 0, 'opsz' 24;
}

.sidebar-brand-text h1 {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 20px;
  color: var(--primary);
  line-height: 1.2;
}

.sidebar-brand-text p {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--secondary);
  font-weight: 700;
  transition: color 0.3s;
}

.sidebar-brand-text p.subtitle-live {
  color: #76ff03;
}

.sidebar-brand-text p.subtitle-offline {
  color: #ff9800;
  animation: pulse-dot 1.5s ease-in-out infinite;
}

.sidebar-brand-text p.subtitle-connecting {
  color: var(--primary);
  animation: pulse-dot 1.5s ease-in-out infinite;
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: var(--outline);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  transition: all 0.3s;
  cursor: pointer;
  text-decoration: none;
}

.sidebar-nav a:hover {
  color: var(--on-surface);
  background: rgba(255, 255, 255, 0.03);
}

.sidebar-nav a.active {
  color: var(--primary);
  background: rgba(233, 195, 73, 0.08);
  border-right: 3px solid var(--primary);
}

/* ── Mobile Bottom Nav ── */
/* Floating liquid-glass pill. The visual glass is a ::before pseudo so the
   clickable <a> children stay above the backdrop-filter and remain sharp. */
.bottom-nav {
  display: none;
  position: fixed;
  left: 50%;
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  width: calc(100% - 24px);
  max-width: 360px;
  height: 72px;
  z-index: 50;
  background: transparent;
  border-radius: 36px;
  justify-content: space-around;
  align-items: center;
  padding: 0 12px;
  isolation: isolate;
}

.bottom-nav::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: rgba(20, 24, 32, 0.6);
  /* Fallback for non-Chromium browsers and narrow viewports where the baked
     360x72 filter doesn't align with the actual bar dimensions. */
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4),
              0 0 0 1px rgba(255, 255, 255, 0.08) inset;
  z-index: -1;
}

/* Apply the SVG refraction filter only when the bar width matches the baked
   map exactly (360px pill — viewports ≥ 384px). Narrower phones keep the
   plain-blur fallback defined above. */
@media (min-width: 384px) {
  .bottom-nav::before {
    backdrop-filter: url(#liquid-glass-bottom-nav);
  }
}

.bottom-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: rgba(224, 229, 245, 0.4);
  transition: color 0.3s;
  text-decoration: none;
  cursor: pointer;
}

.bottom-nav a:hover { color: var(--secondary); text-decoration: none; }
.bottom-nav a.active { color: var(--primary); }
.bottom-nav a .material-symbols-outlined { font-size: 24px; }

.bottom-nav a span:last-child {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Main Content ── */
.main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  padding: 32px;
  overflow-x: hidden;
}

/* Prevent form elements from overflowing their containers */
select, input, textarea { max-width: 100%; }

/* ── Status Bar (mode toggle + connection, outside sidebar for mobile access) ── */
.status-bar {
  position: fixed;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  z-index: 40;
  padding-bottom: 16px;
}

/* ── Views ── */
.view { display: none; }
.view.active { display: block; }

/* ── Page header (inside main) ── */
.view-header {
  margin-bottom: 24px;
}

.view-header h2 {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 36px;
  color: var(--on-surface);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.view-header p {
  color: var(--on-surface-variant);
  font-size: 14px;
  max-width: 600px;
  line-height: 1.6;
}

/* ── Bento Grid ── */
.bento-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

.bento-span-2 { grid-column: span 2; }
.bento-span-3 { grid-column: span 3; }

/* ── Cards ── */
.card {
  background: var(--surface-container-high);
  border-radius: 1rem;
  padding: 24px;
}

.card h3 {
  font-size: 10px;
  color: var(--on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-flush { padding: 0; overflow: hidden; }

/* ── Mode Card ── */
.mode-card {
  position: relative;
  overflow: hidden;
  cursor: default;
}

.mode-card-active {
  background: var(--surface-container-high);
  padding: 32px 24px;
}

.mode-card-active .mode-card-bg-icon {
  position: absolute;
  top: 0;
  right: 0;
  padding: 24px;
  opacity: 0.08;
}

.mode-card-active .mode-card-bg-icon .material-symbols-outlined {
  font-size: 100px;
  font-variation-settings: 'FILL' 1, 'wght' 300, 'GRAD' 0, 'opsz' 48;
}

.mode-card-active .mode-badge-sm {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  background: rgba(233, 195, 73, 0.1);
  color: var(--primary);
  margin-bottom: 12px;
}

.mode-card-active h3 {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 32px;
  color: var(--on-surface);
  text-transform: none;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.mode-card-active .mode-status {
  color: var(--secondary);
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mode-card-active .mode-status .pulse {
  position: relative;
  width: 10px;
  height: 10px;
}

.mode-card-active .mode-status .pulse::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--secondary);
  animation: pulse-ring 2s ease-out infinite;
}

.mode-card-active .mode-status .pulse::after {
  content: '';
  position: absolute;
  inset: 2px;
  border-radius: 50%;
  background: var(--secondary);
}

@keyframes pulse-ring {
  0% { opacity: 0.7; transform: scale(1); }
  100% { opacity: 0; transform: scale(2.5); }
}

.mode-card-inactive {
  background: var(--surface-container);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.3s;
}

.mode-card-inactive:hover { background: var(--surface-container-high); }

.mode-card-inactive h4 {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 18px;
  color: rgba(224, 229, 245, 0.6);
  margin-bottom: 2px;
}

.mode-card-inactive p {
  font-size: 12px;
  color: var(--on-surface-variant);
}

.mode-card-inactive .mode-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface-container-highest);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mode-card-inactive .mode-icon .material-symbols-outlined {
  color: var(--on-surface-variant);
  font-size: 20px;
}

/* ── Tank Temperature Gauge ── */
.tank-gauge-card {
  background: var(--surface-container-lowest);
  border-radius: 1.5rem;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.tank-gauge-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(67, 174, 164, 0.06) 0%, transparent 70%);
  transform: translate(30%, -30%);
  pointer-events: none;
}

.tank-gauge-title {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 24px;
  color: var(--on-surface);
  margin-bottom: 16px;
}

.tank-gauge-ring {
  position: relative;
  width: 180px;
  height: 180px;
  margin-bottom: 16px;
}

.tank-gauge-svg {
  width: 100%;
  height: 100%;
  transform: rotate(0deg);
}

.tank-gauge-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.tank-gauge-value {
  font-family: 'Newsreader', Georgia, serif;
  font-size: 52px;
  color: var(--on-surface);
  line-height: 1;
}

.tank-gauge-unit {
  font-family: 'Newsreader', Georgia, serif;
  font-size: 24px;
  color: var(--on-surface-variant);
}

.tank-gauge-status {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--secondary);
  margin-top: 8px;
}

.tank-gauge-message {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 15px;
  color: var(--on-surface-variant);
  margin-bottom: 16px;
  min-height: 1.5em;
}

.tank-gauge-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
}

.tank-gauge-stat {
  background: var(--surface-container-high);
  border-radius: 0.75rem;
  padding: 12px 16px;
}

.tank-gauge-stat-label {
  font-size: 10px;
  color: var(--on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
  display: block;
  margin-bottom: 4px;
}

.tank-gauge-stat-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--on-surface);
}

.tank-gauge-stat-unit {
  font-size: 13px;
  color: var(--secondary);
}

/* ── Graph ── */
.graph-card { padding: 24px; }

.graph-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.graph-header h3 { margin-bottom: 0; }

.time-range-pills {
  display: flex;
  gap: 4px;
  background: var(--surface-container-lowest);
  border-radius: 9999px;
  padding: 4px;
}

.time-range-pills button {
  background: none;
  border: none;
  color: var(--on-surface-variant);
  font-family: 'Manrope', sans-serif;
  font-size: 11px;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: 9999px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all 0.2s;
}

.time-range-pills button:hover { color: var(--on-surface); }

.time-range-pills button.active {
  background: var(--surface-container-highest);
  color: var(--on-surface);
}

.graph-peak {
  font-size: 12px;
  color: var(--secondary);
  font-weight: 600;
}

.graph-container {
  position: relative;
  height: 320px;
  background: var(--surface-container);
  border-radius: 0.75rem;
  overflow: hidden;
}

.graph-container canvas {
  width: 100% !important;
  height: 100% !important;
}

.graph-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  justify-content: center;
  margin-top: 12px;
}

.graph-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--on-surface-variant);
  font-weight: 600;
}

.graph-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.graph-legend-line {
  width: 12px;
  height: 2px;
  background: var(--on-surface);
  border-radius: 1px;
}

/* ── Graph Inspector ── */
.graph-crosshair {
  display: none;
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.3);
  pointer-events: none;
  z-index: 2;
}

.graph-crosshair::before,
.graph-crosshair::after {
  content: '';
  position: absolute;
  left: -3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
}

.graph-crosshair::before { top: 0; }
.graph-crosshair::after { bottom: 0; }

.graph-inspector {
  display: none;
  position: absolute;
  top: 8px;
  z-index: 3;
  background: rgba(12, 14, 18, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 8px 12px;
  pointer-events: none;
  min-width: 150px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.graph-inspector-time {
  font-size: 11px;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.graph-inspector-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--on-surface-variant);
  line-height: 1.8;
}

.graph-inspector-row span:nth-child(2) {
  flex: 1;
}

.graph-inspector-val {
  font-weight: 700;
  color: var(--on-surface);
  font-variant-numeric: tabular-nums;
}

.graph-inspector-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.graph-inspector-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  margin: 4px 0;
}

/* ── System Logs ── */
.copy-logs-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 8px;
  background: var(--surface-container);
  color: var(--on-surface-variant);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.copy-logs-btn:hover { background: var(--surface-container-highest); color: var(--on-surface); }
.copy-logs-btn.copied {
  background: var(--secondary);
  color: var(--surface-container-lowest);
}

.logs-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: 400px;
  overflow-y: auto;
}

.log-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding-bottom: 16px;
}

.log-item:not(:last-child) {
  /* No-Line rule: use spacing gap instead of border for separation */
}

.log-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}

.log-dot-charging { background: #ee7d77; box-shadow: 0 0 8px rgba(238, 125, 119, 0.5); }
.log-dot-heating { background: #e9c349; box-shadow: 0 0 8px rgba(233, 195, 73, 0.5); }
.log-dot-emergency { background: #ff7043; box-shadow: 0 0 8px rgba(255, 112, 67, 0.5); }
.log-dot-muted { background: var(--surface-container-highest); }

.log-content { flex: 1; min-width: 0; }

.log-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: 2px;
}

.log-desc {
  font-size: 11px;
  color: var(--on-surface-variant);
  line-height: 1.4;
}

.log-time {
  font-size: 10px;
  color: var(--on-surface-variant);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Critical Components ── */
.components-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.component-card {
  background: var(--surface-container-low);
  border-radius: 0.75rem;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.component-label {
  font-size: 10px;
  color: var(--on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
  margin-bottom: 4px;
}

.component-value {
  font-size: 16px;
  font-weight: 700;
}

.component-value-active { color: var(--secondary); }
.component-value-off { color: var(--on-surface-variant); }
.component-value-optimal { color: var(--primary); }

.component-icon {
  color: var(--on-surface-variant);
  opacity: 0.2;
  font-size: 28px;
}

/* ── Valve Chips Grid ── */
.valve-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.valve-chip {
  background: var(--surface-container-low);
  border-radius: 0.75rem;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.valve-chip-name {
  font-size: 13px;
  color: var(--on-surface);
  font-weight: 600;
}

.valve-chip-state {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.valve-chip-open {
  color: #69d0c5;
  text-shadow: 0 0 8px rgba(67, 174, 164, 0.4);
}

.valve-chip-closed { color: var(--on-surface-variant); }

/* ── Status table ── */
.status-table { width: 100%; border-collapse: collapse; font-size: 13px; }

.status-table th {
  text-align: left;
  color: var(--on-surface-variant);
  font-weight: 700;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: 8px 12px;
}

.status-table td { padding: 8px 12px; color: var(--on-surface); }
.status-table tr:nth-child(even) td { background: rgba(255, 255, 255, 0.02); }

.status-table .val {
  font-family: 'Manrope', 'SF Mono', Consolas, monospace;
  font-weight: 600;
}

/* ── Controls ── */
.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.control-group { display: flex; flex-direction: column; gap: 6px; }

.control-group label {
  font-size: 10px;
  color: var(--on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
}

.control-group .value {
  font-size: 16px;
  color: var(--on-surface);
  font-weight: 700;
  min-width: 70px;
  text-align: right;
}

.control-row { display: flex; align-items: center; gap: 10px; }

/* Custom touch-friendly slider */
.custom-slider-track {
  flex: 1;
  height: 4px;
  background: var(--surface-container-lowest);
  border-radius: 2px;
  position: relative;
  cursor: pointer;
  touch-action: none;
  padding: 16px 0;
  margin: -16px 0;
  background-clip: content-box;
}

.custom-slider-fill {
  position: absolute;
  top: 16px;
  left: 0;
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
  pointer-events: none;
}

.custom-slider-thumb {
  position: absolute;
  top: 16px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  transform: translate(-50%, -50%) translateY(2px);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(233, 195, 73, 0.3);
  transition: transform 0.1s ease;
  pointer-events: none;
}

.custom-slider-thumb.active {
  transform: translate(-50%, -50%) translateY(2px) scale(1.2);
  box-shadow: 0 0 16px rgba(233, 195, 73, 0.5);
}

select {
  background: var(--surface-container);
  color: var(--on-surface);
  border: none;
  border-radius: 0.5rem;
  padding: 8px 16px;
  font-size: 13px;
  font-family: 'Manrope', sans-serif;
}

input[type="checkbox"] { accent-color: var(--primary); }

button {
  background: var(--surface-container);
  color: var(--on-surface);
  border: none;
  border-radius: 0.5rem;
  padding: 12px 24px;
  font-size: 12px;
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.2s;
}

button:hover { background: var(--surface-container-highest); }

button.primary {
  background: linear-gradient(15deg, var(--primary-container), var(--primary));
  color: var(--surface-container-lowest);
}

button.primary:hover { opacity: 0.9; }
button.primary:disabled {
  background: var(--surface-container);
  color: var(--outline);
  cursor: not-allowed;
  opacity: 0.6;
}

/* ── Scenario Preset Buttons ── */
.preset-btn {
  padding: 8px 12px;
  border-radius: 20px;
  border: 1px solid var(--outline-variant);
  background: transparent;
  color: var(--on-surface-variant);
  font-family: var(--ff-body);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.preset-btn:hover {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.preset-btn.preset-active {
  background: var(--primary);
  color: var(--surface-container-lowest);
  border-color: var(--primary);
}

/* ── FAB (Floating Action Button) ── */
.fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-container), var(--primary));
  color: var(--surface-container-lowest);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 45;
  border: none;
  padding: 0;
  box-shadow: 0 4px 20px rgba(233, 195, 73, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
  font-size: 0;
  line-height: 1;
}

.fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(233, 195, 73, 0.4);
  background: linear-gradient(135deg, var(--primary-container), var(--primary));
}

.fab .material-symbols-outlined {
  font-size: 28px;
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ── SVG Schematic ── */
.svg-container { width: 100%; overflow: auto; }
.svg-container svg { width: 100%; height: auto; max-height: 600px; }

/* ── Warnings ── */
.warning-box {
  background: rgba(233, 195, 73, 0.1);
  border-left: 3px solid var(--primary);
  border-radius: 0 0.5rem 0.5rem 0;
  padding: 12px 16px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--primary);
}

.danger-box {
  background: rgba(238, 125, 119, 0.1);
  border-left: 3px solid var(--error);
  border-radius: 0 0.5rem 0.5rem 0;
  padding: 12px 16px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--error);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 48px 16px calc(100px + env(safe-area-inset-bottom, 0px)); }
  .bottom-nav { display: flex; }
  .status-bar {
    position: fixed;
    top: 0;
    bottom: auto;
    left: 0;
    right: 0;
    width: auto;
    z-index: 55;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background: rgba(12, 14, 18, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }
  .status-bar .mode-toggle { padding: 0; }
  .status-bar .connection-status { padding: 0; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-span-2, .bento-span-3 { grid-column: span 1; }
  .components-grid { grid-template-columns: repeat(2, 1fr); }
  .controls-grid { grid-template-columns: 1fr; }
  .view-header h2 { font-size: 28px; }
  .fab { bottom: calc(88px + env(safe-area-inset-bottom, 0px)); right: 20px; }
  .mode-card-active h3 { font-size: 22px; }
  .tank-temp-value { font-size: 44px; }
}

@media (min-width: 769px) and (max-width: 1100px) {
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .bento-span-3 { grid-column: span 2; }
  .components-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Connection Status Indicator ── */

.connection-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Manrope', sans-serif;
  font-size: 12px;
  color: var(--on-surface-variant);
  padding: 4px 24px;
}

.connection-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #6f7683;
  flex-shrink: 0;
}

.connection-dot.connected { background: #76ff03; box-shadow: 0 0 6px #76ff03; }
.connection-dot.disconnected { background: #ee7d77; }
.connection-dot.device-offline { background: #ff9800; animation: pulse-dot 1.5s ease-in-out infinite; }
.connection-dot.reconnecting { background: #e9c349; animation: pulse-dot 1.5s ease-in-out infinite; }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.staleness-banner {
  display: none;
  background: var(--error-container);
  color: var(--error);
  padding: 8px 16px;
  font-size: 12px;
  font-family: 'Manrope', sans-serif;
  text-align: center;
  border-radius: 8px;
  margin-bottom: 12px;
}

.staleness-banner.visible { display: block; }

/* ── Update Toast (top-right, compact) ── */
.update-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 48;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.update-toast.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.update-toast-body {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface-container-high);
  border: 1px solid rgba(233, 195, 73, 0.15);
  border-radius: 10px;
  padding: 10px 14px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  max-width: 340px;
}

.update-toast-content {
  flex: 1;
  min-width: 0;
}

.update-toast-headline {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 14px;
  font-weight: 500;
  color: var(--on-surface);
  line-height: 1.3;
}

.update-toast-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.update-toast-refresh {
  font-family: 'Manrope', sans-serif;
  font-size: 12px;
  font-weight: 600;
  background: var(--primary);
  color: var(--surface-container-lowest);
  border: none;
  border-radius: 6px;
  padding: 5px 12px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.update-toast-refresh:hover {
  background: var(--primary);
  transform: scale(1.04);
  box-shadow: 0 2px 10px rgba(233, 195, 73, 0.3);
}

.update-toast-dismiss {
  font-family: 'Manrope', sans-serif;
  font-size: 12px;
  background: transparent;
  color: var(--on-surface-variant);
  border: none;
  padding: 5px 8px;
  cursor: pointer;
  transition: color 0.2s;
  white-space: nowrap;
}

.update-toast-dismiss:hover {
  background: transparent;
  color: var(--on-surface);
}

@media (max-width: 768px) {
  .update-toast {
    bottom: 76px; /* clear the glassmorphic bottom nav */
    right: 12px;
    left: 12px;
  }
  .update-toast-body {
    max-width: none;
  }
}

/* ── Connection Overlay (glassmorphism) ── */

.connection-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(17, 19, 25, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 1.5rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  padding: 24px;
  text-align: center;
}

.connection-overlay.visible {
  display: flex;
}

.connection-overlay-title {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 24px;
  color: var(--on-surface);
  margin-bottom: 8px;
}

.connection-overlay-subtitle {
  font-family: 'Manrope', sans-serif;
  font-size: 13px;
  color: var(--on-surface-variant);
  max-width: 280px;
  line-height: 1.5;
}

/* ── Device Push Disabled State ── */

button.primary.disabled {
  opacity: 0.4;
  pointer-events: none;
  cursor: not-allowed;
}

.dc-connection-warning {
  font-size: 12px;
  color: var(--on-surface-variant);
  margin-top: 8px;
}

.dc-try-anyway {
  font-size: 12px;
  color: var(--secondary);
  cursor: pointer;
  margin-top: 4px;
  display: inline-block;
}

.dc-try-anyway:hover {
  color: var(--primary);
}

/* ── Mode Toggle ── */

.mode-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  font-family: 'Manrope', sans-serif;
  font-size: 13px;
  color: var(--on-surface-variant);
  padding: 8px 24px;
}

.mode-toggle.visible { display: flex; }

.mode-toggle-switch {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--surface-container);
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.2s;
  border: 1px solid var(--outline-variant);
}

.mode-toggle-switch.active { background: var(--secondary-container); border-color: var(--secondary); }

.mode-toggle-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--on-surface-variant);
  transition: transform 0.2s, background 0.2s;
}

.mode-toggle-switch.active::after {
  transform: translateX(20px);
  background: var(--secondary);
}

.mode-toggle-label { font-weight: 500; }
.mode-toggle-label.active { color: var(--secondary); }

/* ── Controls disabled indicator ── */

.controls-indicator {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--on-surface-variant);
  padding: 2px 24px;
}

.controls-indicator.visible { display: flex; }

/* ── Device Config View ── */

.device-config-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.device-config-label {
  font-family: 'Manrope', sans-serif;
  font-size: 14px;
  color: var(--on-surface);
}

.device-toggle {
  width: 44px;
  height: 24px;
  background: var(--surface-container);
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.2s;
  border: 1px solid var(--outline-variant);
  position: relative;
  flex-shrink: 0;
}

.device-toggle::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--on-surface-variant);
  transition: transform 0.2s, background 0.2s;
}

.device-toggle.active {
  background: var(--secondary-container);
  border-color: var(--secondary);
}

.device-toggle.active::after {
  transform: translateX(20px);
  background: var(--secondary);
}

.device-select {
  background: var(--surface-container);
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  padding: 8px 12px;
  font-family: 'Manrope', sans-serif;
  font-size: 13px;
  cursor: pointer;
  max-width: 60%;
  min-width: 0;
}

.device-select:focus { outline: 1px solid var(--secondary); }

.device-config-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.device-check {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Manrope', sans-serif;
  font-size: 13px;
  color: var(--on-surface);
  cursor: pointer;
}

.device-check input[type="checkbox"] {
  accent-color: var(--secondary);
  width: 16px;
  height: 16px;
}

/* ── Relay Toggle Board ── */

.relay-board {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

@media (min-width: 768px) {
  .relay-board {
    grid-template-columns: repeat(5, 1fr);
  }
}

.relay-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  min-width: 64px;
  padding: 10px 6px;
  border: 2px solid var(--outline-variant);
  border-radius: 10px;
  background: var(--surface-container-low);
  color: var(--on-surface-variant);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
  font-family: 'Manrope', sans-serif;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.relay-btn:active:not(:disabled) {
  transform: scale(0.95);
}

.relay-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

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

.relay-btn--pending {
  opacity: 0.7;
}

.relay-btn--error {
  animation: relay-shake 0.3s ease-in-out;
  border-color: var(--error) !important;
}

@keyframes relay-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

.relay-label {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
}

.relay-id {
  font-size: 10px;
  opacity: 0.6;
  margin-top: 2px;
  font-family: monospace;
}

.ttl-btn {
  padding: 4px 12px;
  border: 1px solid var(--outline-variant);
  border-radius: 6px;
  background: var(--surface-container-low);
  color: var(--on-surface-variant);
  font-size: 12px;
  font-family: 'Manrope', sans-serif;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.ttl-btn.active {
  background: var(--secondary-container);
  border-color: var(--secondary);
  color: var(--secondary);
}

/* ── Sensors View ── */

.sensor-roles { display: flex; flex-direction: column; gap: 12px; }

.sensor-role-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 10px 12px;
  background: var(--surface-container-low);
  border-radius: 8px;
  border-left: 3px solid transparent;
}
.sensor-role-row[data-required="true"] {
  border-left-color: var(--primary);
}

.role-info { display: flex; flex-direction: column; gap: 2px; min-width: 160px; }
.role-info strong { font-size: 14px; color: var(--on-surface); display: inline-flex; align-items: center; gap: 8px; }
.role-required-badge {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(233, 195, 73, 0.1);
  border: 1px solid rgba(233, 195, 73, 0.3);
  border-radius: 4px;
  padding: 1px 6px;
}
.role-location { font-size: 12px; color: var(--on-surface-variant); }

.role-assignment { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.sensor-select {
  background: var(--surface-container); color: var(--on-surface);
  border: 1px solid var(--outline-variant); border-radius: 6px;
  padding: 6px 8px; font-size: 13px; font-family: var(--font-body);
  min-width: 240px; max-width: 400px;
}
.sensor-select:focus { border-color: var(--primary); outline: none; }

.sensor-temp { font-size: 14px; color: var(--secondary); font-weight: 500; }
.sensor-warning { font-size: 12px; color: var(--error); }

.host-group { margin-bottom: 16px; }
.host-group h4 { font-family: var(--font-heading); font-size: 15px; margin-bottom: 8px; }
.host-ip { font-weight: 400; color: var(--on-surface-variant); font-size: 13px; }
.host-error { color: var(--error); font-size: 13px; }

.sensor-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.sensor-table th { text-align: left; padding: 6px 10px; color: var(--on-surface-variant); border-bottom: 1px solid var(--outline-variant); }
.sensor-table td { padding: 6px 10px; }
.sensor-table .addr { font-family: monospace; font-size: 12px; }
.sensor-table tr.assigned { background: var(--surface-container-low); }

.status-badge {
  display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px;
}
.status-badge.assigned { background: var(--secondary); color: var(--on-secondary); }
.status-badge.available { background: var(--surface-container); color: var(--on-surface-variant); }

.sensor-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.scan-spinner {
  display: inline-block; width: 14px; height: 14px; margin-right: 6px;
  border: 2px solid var(--on-surface-variant); border-top-color: transparent;
  border-radius: 50%; animation: scan-spin 0.8s linear infinite; vertical-align: middle;
}
button.scanning { opacity: 0.7; cursor: wait; }
@keyframes scan-spin { to { transform: rotate(360deg); } }

.apply-results-grid { display: flex; flex-direction: column; gap: 6px; }
.apply-result { padding: 6px 10px; border-radius: 6px; font-size: 13px; }
.apply-result.success { background: rgba(118, 255, 3, 0.1); color: #76ff03; }
.apply-result.error { background: rgba(239, 83, 80, 0.1); color: var(--error); }
.retry-btn {
  background: var(--surface-container); color: var(--on-surface);
  border: 1px solid var(--outline-variant); border-radius: 4px;
  padding: 2px 8px; font-size: 12px; cursor: pointer; margin-left: 8px;
}

@media (max-width: 767px) {
  .sensor-role-row { flex-direction: column; align-items: stretch; }
  .sensor-select { min-width: unset; width: 100%; }
}

/* ── Settings view (PWA install + notifications + account) ── */

.settings-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 640px;
}

.settings-card h3 {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 20px;
  color: var(--on-surface);
  text-transform: none;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.settings-desc {
  color: var(--on-surface-variant);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.settings-btn {
  width: 100%;
  max-width: 280px;
  justify-content: flex-start;
}

.settings-btn-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.notif-unavailable {
  font-size: 12px;
  color: var(--on-surface-variant);
  padding: 8px 0 0;
  line-height: 1.5;
}

.notif-categories {
  margin-top: 16px;
  padding: 12px 0 0;
  border-top: 1px solid var(--outline-variant);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.notif-cat-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.notif-cat-row .notif-cat-label {
  flex: 1;
  min-width: 0;
}

.notif-test-btn {
  background: none;
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-surface-variant);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 4px;
  transition: color 0.2s, background 0.2s, border-color 0.2s, transform 0.15s;
  font-family: inherit;
}

.notif-test-btn:hover {
  color: var(--secondary);
  border-color: var(--secondary);
  background: rgba(67, 174, 164, 0.08);
}

.notif-test-btn:active {
  transform: scale(0.94);
}

.notif-test-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.notif-test-btn[data-testing="sent"] {
  color: var(--secondary);
  background: rgba(67, 174, 164, 0.18);
  border-color: var(--secondary);
}

.notif-test-btn[data-testing="error"] {
  color: var(--error);
  background: rgba(238, 125, 119, 0.12);
  border-color: var(--error);
}

.notif-test-btn .material-symbols-outlined {
  font-size: 18px;
}

.notif-test-hint {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--outline-variant);
  font-size: 11px;
  color: var(--on-surface-variant);
  line-height: 1.5;
}

.notif-cat-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--on-surface-variant);
  cursor: pointer;
  padding: 6px 0;
  line-height: 1.4;
}

.notif-cat-label strong {
  color: var(--on-surface);
  font-weight: 600;
}

.notif-cat-label input[type="checkbox"] {
  accent-color: var(--secondary);
  width: 16px;
  height: 16px;
  cursor: pointer;
  margin-top: 2px;
  flex-shrink: 0;
}

.notif-cat-label span {
  user-select: none;
}

/* Shared button label helper — lets us toggle text visibility in responsive
   contexts without destroying the icon span via textContent updates. */
.auth-btn-label {
  display: inline-block;
}

#notif-toggle-btn.notif-active {
  color: var(--secondary);
  background: rgba(67, 174, 164, 0.08);
  border-color: rgba(67, 174, 164, 0.35);
}

#notif-toggle-btn.notif-active:hover {
  background: rgba(67, 174, 164, 0.14);
  border-color: var(--secondary);
}

#notif-toggle-btn.notif-disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Auth actions ──
   The #auth-actions element is now the Account card inside the Settings
   view. auth.js sets `.hidden = false` when the user is authenticated.
   We keep a display-visible declaration on the class for backwards
   compatibility. */
.auth-actions[hidden] { display: none !important; }

.auth-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--outline-variant);
  background: var(--surface-container);
  color: var(--on-surface-variant);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  cursor: pointer;
  font-family: inherit;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.auth-btn:hover {
  color: var(--on-surface);
  background: var(--surface-container-high);
  border-color: var(--outline);
}
.auth-btn .material-symbols-outlined { font-size: 18px; }

.auth-btn-primary {
  color: var(--primary);
  background: rgba(233, 195, 73, 0.08);
  border-color: rgba(233, 195, 73, 0.35);
}
.auth-btn-primary:hover {
  background: rgba(233, 195, 73, 0.14);
  border-color: var(--primary);
  color: var(--primary);
}

@media (max-width: 768px) {
  /* Settings view: stack cards full-width on mobile */
  .settings-grid { max-width: none; }
  .settings-btn { max-width: none; }
}

/* ── Invitation modal ── */
.invite-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.invite-modal[hidden] { display: none; }
.invite-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.invite-modal-content {
  position: relative;
  background: var(--surface-container-high);
  border-radius: 1rem;
  padding: 32px;
  max-width: 380px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.invite-code {
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 10px;
  color: var(--primary);
  padding: 14px;
  background: var(--surface-container-low);
  border-radius: 12px;
  margin-bottom: 16px;
}

/* ── Invitation form (admin → user) ── */
.invite-field-label {
  display: block;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--on-surface-variant);
  margin: 12px 0 6px;
}
.invite-text-input,
.invite-select {
  width: 100%;
  padding: 12px 14px;
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: 10px;
  color: var(--on-surface);
  font-family: 'Manrope', sans-serif;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
.invite-text-input:focus,
.invite-select:focus {
  border-color: var(--secondary);
}
.invite-select {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--on-surface-variant) 50%),
                    linear-gradient(135deg, var(--on-surface-variant) 50%, transparent 50%);
  background-position: calc(100% - 18px) center, calc(100% - 13px) center;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 32px;
}

/* ── User management list ── */
.users-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.users-header h3 {
  margin-bottom: 0;
}
.users-refresh-btn {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  padding: 0;
  justify-content: center;
}
.users-refresh-btn .material-symbols-outlined {
  font-size: 18px;
}
#users-card .settings-btn-stack {
  margin-bottom: 16px;
}
.users-feedback {
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  border: 1px solid var(--outline-variant);
  background: rgba(67, 174, 164, 0.08);
  color: var(--secondary);
}
.users-feedback.users-feedback-error {
  color: var(--error);
  background: rgba(238, 125, 119, 0.08);
  border-color: rgba(238, 125, 119, 0.3);
}
.users-inline-editor {
  margin-bottom: 12px;
  padding: 12px;
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}
.users-inline-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.users-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--on-surface-variant);
}
.users-inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.users-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.users-loading,
.users-empty,
.users-error {
  font-size: 13px;
  color: var(--on-surface-variant);
  padding: 8px 0;
}
.users-error { color: var(--error); }
.user-card {
  border: 1px solid var(--outline-variant);
  border-radius: 14px;
  background: var(--surface-container);
  overflow: hidden;
}
.user-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
}
.user-info {
  flex: 1;
  min-width: 0;
}
.user-name {
  font-family: 'Manrope', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--on-surface);
}
.user-meta {
  font-size: 11px;
  color: var(--on-surface-variant);
  margin-top: 2px;
}
.user-role-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 4px 10px;
  border-radius: 999px;
}
.user-role-admin {
  color: var(--primary);
  background: rgba(233, 195, 73, 0.12);
  border: 1px solid rgba(233, 195, 73, 0.35);
}
.user-role-readonly {
  color: var(--secondary);
  background: rgba(67, 174, 164, 0.10);
  border: 1px solid rgba(67, 174, 164, 0.35);
}
.user-edit-btn,
.user-delete-btn {
  background: none;
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-surface-variant);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.user-edit-btn:hover {
  color: var(--secondary);
  border-color: var(--secondary);
  background: rgba(67, 174, 164, 0.08);
}
.user-delete-btn:hover {
  color: var(--error);
  border-color: var(--error);
  background: rgba(238, 125, 119, 0.08);
}
.user-edit-btn .material-symbols-outlined,
.user-delete-btn .material-symbols-outlined {
  font-size: 16px;
}
.user-role-clickable {
  cursor: pointer;
  transition: filter 0.2s;
}
.user-role-clickable:hover {
  filter: brightness(1.15);
}
.user-devices {
  padding: 0 14px 14px;
}
.user-devices .passkey-row + .passkey-row {
  margin-top: 10px;
}
.user-devices-header {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--on-surface-variant);
  margin: 2px 0 10px;
}
.user-inline-editor {
  margin: 0 14px 14px;
}
.inline-danger-row {
  margin: 0 14px 14px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(238, 125, 119, 0.3);
  background: rgba(238, 125, 119, 0.08);
}
.inline-danger-row p {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--on-surface);
}
.passkey-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  column-gap: 12px;
  padding: 12px;
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  background: rgba(12, 14, 18, 0.26);
}
.passkey-label {
  grid-column: 1;
  grid-row: 1;
  font-size: 14px;
  font-weight: 600;
  color: var(--on-surface);
}
.passkey-subtitle {
  grid-column: 1;
  grid-row: 2;
  margin-top: 4px;
  font-size: 12px;
  color: var(--on-surface-variant);
}
.passkey-meta {
  grid-column: 1 / -1;
  grid-row: 3;
  margin-top: 4px;
  font-size: 12px;
  color: var(--on-surface-variant);
}
.passkey-actions {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: start;
  display: flex;
  gap: 8px;
}
.passkey-empty {
  font-size: 12px;
  color: var(--on-surface-variant);
  padding: 4px 0 0;
}
.inline-passkey-editor {
  margin-top: 8px;
}
.user-edit-btn:disabled,
.user-delete-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

@media (max-width: 768px) {
  .users-inline-grid {
    grid-template-columns: 1fr;
  }
  .user-row {
    flex-wrap: wrap;
  }
}

/* Hide admin-only elements when the body is in read-only mode. The
   data-role attribute is set by js/auth.js after fetching /auth/status. */
body[data-role="readonly"] [data-admin-only] {
  display: none !important;
}
.invite-qr {
  display: block;
  margin: 0 auto 12px;
  max-width: 200px;
  max-height: 200px;
  border-radius: 8px;
  background: #fff;
}
.invite-timer {
  font-size: 12px;
  font-weight: 700;
  color: var(--on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}
.invite-timer.expiring { color: var(--error); }
.invite-error {
  margin-top: 16px;
  padding: 10px 12px;
  background: rgba(238, 125, 119, 0.1);
  border: 1px solid rgba(238, 125, 119, 0.35);
  border-radius: 8px;
  color: var(--error);
  font-size: 13px;
}
.invite-error[hidden] { display: none; }

/* ── Login page invitation input (login.html) ── */
.invite-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  color: var(--on-surface-variant);
  cursor: pointer;
  border: none;
  background: none;
  text-decoration: underline;
}
.invite-link:hover { color: var(--primary); }

.invite-section {
  display: none;
  margin-top: 16px;
}
.invite-section.visible { display: block; }

.invite-input {
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 6px;
  text-align: center;
  width: 100%;
  padding: 10px;
  border: 2px solid var(--outline-variant);
  border-radius: 8px;
  background: var(--surface-container-low);
  color: var(--on-surface);
  margin-bottom: 12px;
}
.invite-input:focus {
  outline: none;
  border-color: var(--primary);
}

/* 023-limit-valve-operations: staged-transition observability */
.staged-valve-indicator {
  margin-top: 10px;
  padding: 8px 12px;
  background: var(--surface-container-low);
  border-radius: 8px;
  font-family: 'Manrope', sans-serif;
  font-size: 13px;
  color: var(--on-surface-variant);
}
.staged-valve-list {
  margin-top: 8px;
}
.staged-valve-list:empty {
  display: none;
}
.staged-valve-list-label {
  font-family: 'Manrope', sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--on-surface-variant);
  margin-bottom: 6px;
  margin-top: 10px;
}
.staged-valve-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px;
  margin-bottom: 4px;
  border-radius: 6px;
  background: var(--surface-container-low);
  font-family: 'Manrope', sans-serif;
  font-size: 13px;
}
.staged-valve-name {
  font-weight: 500;
  color: var(--on-surface);
}
.staged-valve-countdown {
  font-variant-numeric: tabular-nums;
  color: var(--on-surface-variant);
}
.staged-valve-opening .staged-valve-name { color: var(--primary); }
.staged-valve-queued .staged-valve-name { color: var(--on-surface-variant); }
.staged-valve-pending-close .staged-valve-name { color: var(--secondary); }

/* ── Watchdog pending banner ── */
.watchdog-banner {
  border: 2px solid #e67e22;
  background: rgba(230, 126, 34, 0.12);
  border-radius: 12px;
  padding: 16px;
  margin: 12px 0 16px;
}
.watchdog-banner-header {
  display: flex;
  align-items: center;
  gap: 8px;
}
.watchdog-banner-header .material-symbols-outlined {
  color: #e67e22;
  font-size: 24px;
}
.watchdog-banner-header h3 {
  margin: 0;
  font-size: 18px;
  color: var(--on-surface);
}
.watchdog-banner-reason {
  font-size: 14px;
  margin: 8px 0;
  color: var(--on-surface-variant);
}
.watchdog-banner-countdown {
  font-size: 14px;
  font-weight: 600;
  margin: 8px 0 12px 0;
  color: var(--on-surface);
  font-variant-numeric: tabular-nums;
}
.watchdog-banner-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.watchdog-banner-form input {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--outline, #444);
  background: var(--surface, #1a1f28);
  color: var(--on-surface, #e7eaf0);
  font-family: inherit;
  font-size: 14px;
}
.watchdog-banner-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.auth-btn-danger {
  background: #c0392b;
  color: white;
}
.auth-btn-danger:hover { background: #e74c3c; }
.auth-btn-danger:disabled { opacity: 0.5; cursor: not-allowed; }

.watchdog-cooloff-indicator {
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(230, 126, 34, 0.1);
  color: #e67e22;
  font-size: 13px;
  margin: 12px 0;
}

/* ── Mode enablement card ── */
.mode-enablement-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--outline-variant, rgba(255,255,255,0.08));
}
.mode-enablement-row:last-child { border-bottom: none; }
.mode-enablement-label {
  flex: 1;
  font-weight: 600;
  font-family: monospace;
  font-size: 13px;
  color: var(--on-surface);
}
.mode-enablement-status {
  font-size: 13px;
  margin-right: 12px;
}
.mode-allowed { color: #27ae60; }
.mode-disabled { color: var(--on-surface-variant); }
.mode-cooloff { color: #e67e22; }
.mode-enablement-action {
  padding: 4px 12px;
  font-size: 12px;
  border-radius: 6px;
  border: 1px solid var(--outline, #444);
  background: transparent;
  color: var(--on-surface, #e7eaf0);
  cursor: pointer;
}
.mode-enablement-action:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* ── Anomaly watchdogs settings card ── */
.watchdog-row {
  padding: 10px 0;
  border-bottom: 1px solid var(--outline-variant, rgba(255,255,255,0.08));
}
.watchdog-row:last-child { border-bottom: none; }
.watchdog-row-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}
.watchdog-row-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}
.watchdog-snooze-info {
  font-size: 12px;
  color: var(--on-surface-variant);
  margin-top: 4px;
  margin-left: 28px;
}
.watchdog-clear-snooze {
  margin-top: 4px;
  margin-left: 28px;
  padding: 2px 8px;
  font-size: 11px;
  border-radius: 4px;
  border: 1px solid var(--outline, #444);
  background: transparent;
  color: var(--on-surface-variant);
  cursor: pointer;
}
.watchdog-history {
  margin-top: 12px;
}
.watchdog-history summary {
  cursor: pointer;
  color: var(--on-surface-variant);
  font-size: 13px;
  padding: 6px 0;
}
.watchdog-history-row {
  padding: 8px 0;
  border-bottom: 1px solid var(--outline-variant, rgba(255,255,255,0.08));
  font-size: 12px;
}
.watchdog-history-row:last-child { border-bottom: none; }
.history-row-top {
  font-weight: 600;
  color: var(--on-surface);
}
.history-row-reason {
  color: var(--on-surface-variant);
  margin-top: 2px;
}
.history-row-snooze {
  color: #27ae60;
  margin-top: 2px;
  font-style: italic;
}
.empty-state {
  color: var(--on-surface-variant);
  font-size: 13px;
  padding: 8px 0;
  font-style: italic;
}