:root {
  --bg: var(--tg-theme-bg-color, #17212b);
  --text: var(--tg-theme-text-color, #f5f5f7);
  --hint: var(--tg-theme-hint-color, #8a9aa6);
  --section: var(--tg-theme-secondary-bg-color, #232e3c);
  --section-2: rgba(255,255,255,0.04);
  --button-bg: var(--tg-theme-button-color, #5288c1);
  --button-text: var(--tg-theme-button-text-color, #ffffff);
  --link: var(--tg-theme-link-color, #62bcf9);
  --danger: #cf3a3a;
  --warn: #d68a3c;
  --good: #43a047;
  --tab-h: 56px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

body {
  padding: calc(var(--tab-h) + 12px) 12px max(12px, env(safe-area-inset-bottom));
}

section[data-tab] { display: block; }
section[data-tab][hidden] { display: none; }

h2 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--hint);
  margin: 14px 4px 8px;
}

.card {
  background: var(--section);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
}

#active-room, #mower-name {
  font-weight: 600;
  font-size: 17px;
}
#now-playing, .device-sub, #mower-meta {
  color: var(--hint);
  font-size: 13px;
  margin-top: 2px;
  overflow: hidden;
}
.np-title, .np-album {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.np-album { font-size: 12px; opacity: 0.7; margin-top: 1px; }

.transport {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}
.transport button {
  appearance: none;
  background: var(--section);
  color: var(--text);
  border: 0;
  border-radius: 14px;
  padding: 18px 0;
  font-size: 26px;
  cursor: pointer;
  transition: transform .05s ease, background .15s ease;
}
.transport button:active { transform: scale(0.96); background: var(--button-bg); }
#playpause.is-playing { background: var(--button-bg); color: var(--button-text); }

.volume {
  display: flex;
  align-items: center;
  gap: 12px;
}
.volume input {
  flex: 1;
  appearance: none;
  height: 4px;
  background: rgba(255,255,255,0.18);
  border-radius: 4px;
}
.volume input::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--button-bg);
  border-radius: 50%;
}
#vol-value {
  font-variant-numeric: tabular-nums;
  width: 30px;
  text-align: right;
  color: var(--hint);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.grid button {
  appearance: none;
  background: var(--section);
  color: var(--text);
  border: 0;
  border-radius: 12px;
  padding: 14px 6px;
  font-size: 14px;
  cursor: pointer;
  transition: background .15s ease, transform .05s ease;
}
.grid button:active { transform: scale(0.97); }
.grid button.active { background: var(--button-bg); color: var(--button-text); }
.grid button.unavailable { opacity: 0.35; pointer-events: none; }

button.warn {
  appearance: none;
  background: var(--warn);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
  cursor: pointer;
}
button.confirming {
  background: var(--danger);
  color: #fff;
}

/* Device cards */
.device {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}
.device-meta { min-width: 0; }
.device-label { font-weight: 600; }
.device-state {
  font-size: 13px;
  color: var(--hint);
  text-transform: capitalize;
  margin-top: 2px;
}
.device-state.open, .device-state.unlocked, .device-state.opening { color: var(--warn); }
.device-state.closed, .device-state.locked { color: var(--good); }
.device-state.error, .device-state.unavailable { color: var(--danger); }
.device-actions { display: flex; gap: 6px; }

/* Light tiles */
#lights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.light-tile {
  background: var(--section);
  border-radius: 14px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.light-tile button.toggle {
  appearance: none;
  background: var(--section-2);
  color: var(--text);
  border: 0;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.light-tile.on button.toggle {
  background: var(--button-bg);
  color: var(--button-text);
}
.light-tile input[type=range] {
  appearance: none;
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,0.18);
  border-radius: 4px;
}
.light-tile input[type=range]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--button-bg);
  border-radius: 50%;
}
.light-tile.unavailable { opacity: 0.35; pointer-events: none; }

/* Mower telemetry + Energy rows share the same shape */
#mower-telemetry .row,
#e-battery-card .row,
#e-grid-card .row,
#e-solar-card .row,
#e-ev-card .row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 14px;
}
#mower-telemetry .row + .row,
#e-battery-card .row + .row,
#e-grid-card .row + .row,
#e-solar-card .row + .row,
#e-ev-card .row + .row { border-top: 1px solid rgba(255,255,255,0.04); }
#mower-telemetry .row .v,
.card .row .v { color: var(--hint); font-variant-numeric: tabular-nums; }

/* Home dashboard — status grid */
.home-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 4px;
}
.home-tile {
  background: rgba(255,255,255,0.03);
  border-radius: 10px;
  padding: 10px 8px;
  text-align: center;
}
.home-tile-icon { font-size: 18px; margin-bottom: 2px; }
.home-tile-label {
  font-size: 11px;
  color: var(--hint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.home-tile-state {
  font-size: 13px;
  font-weight: 600;
  margin-top: 2px;
  text-transform: capitalize;
}
.home-tile-state.good { color: var(--good); }
.home-tile-state.warn { color: var(--warn); }

/* Energy snapshot — 2x2 big tiles */
.energy-snapshot .row.big {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 8px;
}
.energy-snapshot .row.big:last-child { margin-bottom: 0; }
.energy-snapshot .row.big > div {
  background: rgba(255,255,255,0.03);
  border-radius: 10px;
  padding: 10px 12px;
}
.energy-snapshot .lbl {
  font-size: 11px;
  color: var(--hint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.energy-snapshot .v {
  font-size: 20px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  margin-top: 2px;
  color: var(--text);
}

/* Top tab bar — horizontal scroll, single row */
nav.tabs {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--tab-h);
  background: var(--section);
  padding-top: env(safe-area-inset-top);
  z-index: 5;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
nav.tabs::-webkit-scrollbar { display: none; }
nav.tabs button {
  background: none;
  border: 0;
  color: var(--hint);
  padding: 6px 18px 4px;
  font-size: 11px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  cursor: pointer;
  position: relative;
  height: 100%;
  flex: 0 0 auto;
}
nav.tabs button span { font-size: 11px; }
nav.tabs button.active { color: var(--text); }
nav.tabs button.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--button-bg);
  border-radius: 2px 2px 0 0;
}