:root {
  --bg: #111111;
  --panel: #171717;
  --border: #2a2a2a;
  --text: #ececec;
  --muted: #8a8a8a;
  --hover: #202020;
  --active: #262626;
  --grid: #1d1d1d;
  --dot: #cfcfcf;
  --dot-self: #ffffff;
  --warn: #d6a24a;
  --danger: #d9625a;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme='dark']) {
    --bg: #f4f4f4;
    --panel: #ffffff;
    --border: #dcdcdc;
    --text: #1b1b1b;
    --muted: #6d6d6d;
    --hover: #f0f0f0;
    --active: #e8e8e8;
    --grid: #e6e6e6;
    --dot: #4a4a4a;
    --dot-self: #000000;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font: 13px/1.4 system-ui, -apple-system, 'Segoe UI', sans-serif;
}

.app {
  display: grid;
  grid-template-columns: 260px 1fr 300px;
  height: 100%;
}

aside {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
}

aside.alerts {
  border-right: 0;
  border-left: 1px solid var(--border);
}

aside header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 14px 16px 8px;
}

h1 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
}

.status {
  color: var(--muted);
  font-size: 12px;
}

.status.on {
  color: var(--text);
}

#filter {
  margin: 0 12px 8px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  outline: none;
}

#filter:focus {
  border-color: var(--muted);
}

ul {
  flex: 1;
  margin: 0;
  padding: 0 8px 8px;
  overflow-y: auto;
  list-style: none;
}

#player-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 8px;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
}

#player-list li:hover {
  background: var(--hover);
}

#player-list li.selected {
  background: var(--active);
}

.name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
}

.meta {
  color: var(--muted);
  font-size: 12px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.sub {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 12px;
}

.flag {
  color: var(--warn);
}

#alert-list li {
  padding: 9px 10px;
  border-radius: 8px;
  cursor: pointer;
}

#alert-list li:hover {
  background: var(--hover);
}

#alert-list .head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

#alert-list .type {
  color: var(--warn);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.04em;
}

#alert-list .when {
  color: var(--muted);
  font-size: 12px;
}

.stage {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

#map,
#gl {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

#map[hidden],
#gl[hidden],
.labels[hidden] {
  display: none;
}

.labels {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.tag {
  position: absolute;
  left: 0;
  top: 0;
  padding: 1px 6px;
  border-radius: 6px;
  background: rgba(17, 17, 17, 0.72);
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
  will-change: transform;
}

.tag.chosen {
  color: var(--text);
}

.tag.alert {
  color: var(--warn);
}

.modebar {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  backdrop-filter: blur(6px);
}

.modebar button,
.tabs button {
  padding: 5px 11px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
}

.modebar button:hover,
.tabs button:hover {
  color: var(--text);
  background: var(--hover);
}

.modebar button.on,
.tabs button.on {
  color: var(--text);
  background: var(--active);
}

.distance {
  position: absolute;
  top: 12px;
  right: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px 4px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  color: var(--muted);
  font-size: 12px;
}

.distance[hidden] {
  display: none;
}

.distance select {
  border: 0;
  border-radius: 6px;
  background: var(--active);
  color: var(--text);
  font: inherit;
  padding: 3px 6px;
}

.offline {
  position: absolute;
  top: 58px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 14px;
  border: 1px solid var(--danger);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  color: var(--danger);
  font-weight: 500;
  white-space: nowrap;
}

.offline[hidden] {
  display: none;
}

.stage.down #gl,
.stage.down #map {
  filter: grayscale(0.85) brightness(0.55);
}

#gl,
#map {
  transition: filter 0.4s;
}

.notice {
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  color: var(--muted);
}

.notice[hidden] {
  display: none;
}

.tabs {
  display: flex;
  gap: 2px;
}

#alert-list .plain {
  color: var(--text);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.04em;
}

.readout {
  position: absolute;
  left: 14px;
  bottom: 12px;
  max-width: calc(100% - 28px);
  padding: 3px 9px;
  border-radius: 7px;
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

.readout:empty {
  display: none;
}

.gate {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  background: var(--bg);
}

.gate[hidden] {
  display: none;
}

.gate form {
  display: flex;
  gap: 8px;
}

.gate input,
.gate button {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
}

.gate button {
  cursor: pointer;
}

@media (max-width: 900px) {
  .app {
    grid-template-columns: 200px 1fr;
  }
  .modebar {
    left: 8px;
    transform: none;
  }
  aside.alerts {
    display: none;
  }
}