:root {
  --bg: #08090c;
  --panel: rgba(16, 18, 25, 0.95);
  --line: #232838;
  --text: #cfd6e6;
  --muted: #7b849c;
  --accent: #9cf;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font: 12px/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

#view {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
}

#hud {
  position: fixed;
  top: 14px;
  left: 14px;
  width: 224px;
  z-index: 10;
  padding: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  gap: 9px;
  user-select: none;
}

.title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  letter-spacing: 0.14em;
  font-size: 11px;
  color: #eaf0ff;
}
.title span { letter-spacing: 0.05em; font-size: 9px; color: var(--muted); }

.row { display: flex; align-items: center; gap: 8px; }
.row > span { width: 52px; flex: none; color: var(--muted); }
.row.check { color: var(--muted); }

.buttons button {
  flex: 1;
  padding: 5px 8px;
  color: var(--text);
  background: #171b26;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
.buttons button:hover { background: #1f2534; border-color: #33405c; }
.buttons button:active { background: #131722; }
.buttons button[aria-pressed='false'] { color: var(--accent); border-color: #2b3f66; }
.fps { margin-left: auto; color: var(--muted); font-variant-numeric: tabular-nums; }

select, input[type='range'] {
  flex: 1;
  min-width: 0;
  font: inherit;
  color: var(--text);
  background: #171b26;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 3px 5px;
}
input[type='range'] { padding: 0; accent-color: #6f8fbf; }
input[type='checkbox'] { accent-color: #6f8fbf; margin: 0; }
output {
  width: 40px;
  flex: none;
  text-align: right;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

#hud a { color: var(--accent); border-bottom: 1px dotted #446; text-decoration: none; }
.status {
  min-height: 1.45em;
  color: var(--muted);
  font-size: 11px;
  word-break: break-word;
}
.status.error { color: #ff9d9d; }
.status.ok { color: #9ec9a4; }