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

:root {
  --bg: #1a1a1a;
  --bg2: #242424;
  --bg3: #2e2e2e;
  --border: #3a3a3a;
  --text: #d0d0d0;
  --text-muted: #888;
  --accent: #4a9a4a;
  --accent2: #6abf6a;
  --control-h: 64px;
  --event-h: 160px;
  --info-w: 220px;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Courier New', monospace;
  font-size: 13px;
  overflow: hidden;
}

/* ─── Loading / Error screens ───────────────────────────────────────────── */

#loading, #error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  gap: 16px;
}

#error { display: none; color: #e06060; }

.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

#download-progress {
  display: none;
  width: 260px;
  height: 6px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 3px;
  overflow: hidden;
}

#download-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.1s ease;
}

#download-progress-bar.indeterminate {
  width: 40%;
  animation: progress-slide 1.2s ease-in-out infinite;
}

@keyframes progress-slide {
  0%   { margin-left: 0%; }
  50%  { margin-left: 60%; }
  100% { margin-left: 0%; }
}

#download-bytes {
  display: none;
  color: var(--text-muted);
  font-size: 12px;
}

/* ─── Main app layout ────────────────────────────────────────────────────── */

#app {
  display: none;
  height: 100vh;
  grid-template-rows: auto 1fr auto var(--event-h);
  grid-template-columns: var(--info-w) 1fr var(--info-w);
  grid-template-areas:
    "header  header  header"
    "players canvas  item"
    "players controls item"
    "events  events  events";
}

/* ─── Header / game info bar ─────────────────────────────────────────────── */

#game-info {
  grid-area: header;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 6px 12px;
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
  min-height: 36px;
}

#game-info .info-item { color: var(--text-muted); }
#game-info .info-item span { color: var(--text); }

/* ─── Canvas viewport ────────────────────────────────────────────────────── */

#canvas-wrap {
  grid-area: canvas;
  background: #000;
  overflow: hidden;
}

#game-canvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  cursor: crosshair;
  display: block;
  width: 100%;
  height: 100%;
}

/* ─── Side panels ────────────────────────────────────────────────────────── */

#player-list {
  grid-area: players;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 8px;
}

#item-info {
  grid-area: item;
  background: var(--bg2);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 8px;
}

.panel-title {
  color: var(--accent2);
  font-weight: bold;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.player-entry {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 0;
  cursor: pointer;
}

.player-entry:hover { color: var(--accent2); }
.player-entry.player-active { color: var(--accent2); background: rgba(74, 154, 74, 0.12); border-radius: 3px; }

.player-colour {
  width: 10px; height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
  background: #888;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.15);
}

.player-colour:hover { border-color: var(--accent2); }

.player-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.info-row { display: flex; justify-content: space-between; padding: 2px 0; }
.info-row .label { color: var(--text-muted); }

/* ─── Playback controls ──────────────────────────────────────────────────── */

#controls {
  grid-area: controls;
  background: var(--bg3);
  border-top: 1px solid var(--border);
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  justify-content: center;
}

.controls-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

button {
  background: var(--bg2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 4px 10px;
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  border-radius: 3px;
}

button:hover { border-color: var(--accent); color: var(--accent2); }
button:active { background: var(--bg3); }

#seek-bar {
  flex: 1;
  accent-color: var(--accent);
  cursor: pointer;
}

#speed-slider { width: 80px; accent-color: var(--accent); }

#time-display {
  color: var(--accent2);
  min-width: 120px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.controls-label { color: var(--text-muted); }

/* ─── Event log ──────────────────────────────────────────────────────────── */

#events-panel {
  grid-area: events;
  background: var(--bg);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

#events-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 10px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}

#event-log {
  flex: 1;
  overflow-y: auto;
  padding: 4px 10px;
}

.event-entry {
  padding: 2px 0;
  border-bottom: 1px solid #1e1e1e;
  color: var(--text-muted);
}

.event-entry:last-child { color: var(--text); }

/* ─── Item info panel ────────────────────────────────────────────────────── */

.item-none {
  color: var(--text-muted);
  font-style: italic;
  padding: 4px 0;
}

.item-type {
  font-weight: bold;
  color: var(--accent2);
  margin-bottom: 6px;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
}

.item-row {
  display: flex;
  justify-content: space-between;
  padding: 2px 0;
  border-bottom: 1px solid #222;
  font-size: 12px;
}

.item-row span:first-child { color: var(--text-muted); }
.item-row span:last-child  { color: var(--text); font-family: monospace; }

/* ─── Scrollbars ─────────────────────────────────────────────────────────── */

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

/* ─── Version tag ────────────────────────────────────────────────────────── */

#version-tag {
  position: fixed;
  bottom: 4px;
  right: 6px;
  font-size: 10px;
  color: var(--text-muted);
  opacity: 0.5;
  pointer-events: none;
  z-index: 9999;
  font-family: 'Courier New', monospace;
}


#beta-tag {
  background: #e8a020;
  color: #000;
  font-size: 8px;
  font-weight: bold;
  padding: 1px 3px;
  border-radius: 2px;
  text-transform: uppercase;
  vertical-align: middle;
  opacity: 0.85;
  letter-spacing: 0.5px;
}