* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: #1f2328;
  color: #e6e6e6;
}

header { padding: 12px 24px; border-bottom: 1px solid #333a42; }
h1 { margin: 0; font-size: 20px; font-weight: 600; }
h2 { margin: 0 0 8px; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: #9aa4ae; }

main {
  display: flex;
  gap: 24px;
  padding: 20px 24px;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
}

.board-wrap { position: relative; width: min(92vw, 78vh, 820px); }
#board { width: 100%; height: auto; display: block; user-select: none; -webkit-user-select: none; touch-action: manipulation; -webkit-tap-highlight-color: transparent; }

.cell { cursor: pointer; stroke: #0003; stroke-width: .25; }
.cell.light { fill: #ecd8b6; }
.cell.dark { fill: #b08763; }
.cell.last.light { fill: #e6d77a; }
.cell.last.dark { fill: #c2a94a; }
.cell.selected { fill: #7fb35a !important; }
.cell.check { fill: #e05050 !important; }

.piece {
  font-family: "Segoe UI Symbol", "Noto Sans Symbols 2", "DejaVu Sans", "Apple Symbols", sans-serif;
  text-anchor: middle;
  dominant-baseline: central;
  paint-order: stroke;
  stroke-linejoin: round;
  pointer-events: none;
}

.hint { pointer-events: none; fill: #1d3b1180; }
.hint-capture { pointer-events: none; fill: none; stroke: #1d3b11a0; }
.label { font-size: 4.2px; text-anchor: middle; dominant-baseline: central; pointer-events: none; }
.edge { stroke-width: 1.6; stroke-linecap: round; }

aside { width: 300px; display: flex; flex-direction: column; gap: 18px; }

.status {
  font-size: 18px;
  font-weight: 600;
  padding: 12px 14px;
  border-radius: 8px;
  background: #2b3138;
  border-left: 6px solid var(--player, #888);
}

.player-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 6px;
}
.player-row.to-move { background: #2b3138; }
.player-row.out .name { text-decoration: line-through; color: #777; }
.swatch { width: 16px; height: 16px; border-radius: 50%; border: 1px solid #888; flex: none; }
.player-row .name { flex: 1; }
.player-row .tag { font-size: 12px; color: #9aa4ae; }

select, button {
  font: inherit;
  font-size: 14px;
  background: #2b3138;
  color: inherit;
  border: 1px solid #444c55;
  border-radius: 6px;
  padding: 5px 10px;
}
button { cursor: pointer; }
button:hover { background: #353c44; }

.controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.controls label { display: flex; gap: 8px; align-items: center; font-size: 14px; color: #9aa4ae; width: 100%; }

#log {
  margin: 0;
  padding-left: 40px;
  max-height: 260px;
  overflow-y: auto;
  font-size: 13px;
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
}
#log li.sys { list-style: none; margin-left: -40px; color: #f0c674; font-weight: 600; }

details { font-size: 14px; color: #c4ccd4; }
details summary { cursor: pointer; color: #9aa4ae; }
details ul { padding-left: 18px; line-height: 1.5; }

.promo {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #0008;
}
.promo button { font-size: 40px; width: 64px; height: 64px; padding: 0; line-height: 1; }
.hidden { display: none; }

#online { display: flex; flex-direction: column; gap: 8px; font-size: 14px; color: #c4ccd4; }
#online .share { display: flex; gap: 6px; }
#online input { flex: 1; min-width: 0; font: inherit; font-size: 13px; background: #15181c; color: inherit; border: 1px solid #444c55; border-radius: 6px; padding: 5px 8px; }
#online .muted { color: #9aa4ae; font-size: 13px; }
.player-row .who { font-size: 13px; color: #9aa4ae; }

@media (max-width: 700px) {
  header { padding: 10px 16px; }
  main { padding: 8px 0 24px; gap: 12px; }
  .board-wrap { width: 100vw; }
  aside { width: 100%; padding: 0 16px; }
}