:root {
  --bg: #fbf6e9;
  --panel: #f2e9d4;
  --table: #ece1c6;
  --ink: #2f2a24;
  --muted: #6b6255;
  --pink: #c2185b;
  --teal: #0f7f76;
  --line: #ddd0b3;
  --btn: #ffffff;
  --red: #c62828;
  --black: #1f2328;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body {
  font: 15px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
}
#app { max-width: 900px; margin: 0 auto; padding: 12px 16px 32px; }

header { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
h1 { margin: 0; font-size: 24px; letter-spacing: .5px; color: var(--pink); }
.stats { display: flex; gap: 14px; }
.stat { text-align: center; min-width: 48px; }
.lbl { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .8px; color: var(--muted); }
.stat b { font-size: 18px; font-variant-numeric: tabular-nums; }

#controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 10px 0 6px; }
button {
  font: inherit; font-weight: 600; color: var(--ink);
  background: var(--btn); border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 12px; cursor: pointer;
}
button:hover { border-color: var(--teal); }
button:disabled { opacity: .45; cursor: default; border-color: var(--line); }
button.primary { background: var(--teal); border-color: var(--teal); color: #fff; }
button.primary.on { background: var(--pink); border-color: var(--pink); }
button.pulse { animation: pulse .5s ease 3; }
@keyframes pulse { 50% { box-shadow: 0 0 0 5px rgba(194, 24, 91, .35); } }
.speed { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
select, input {
  font: inherit; color: var(--ink); background: var(--btn);
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px;
}
#msg { min-height: 22px; font-size: 14px; color: var(--muted); margin-bottom: 6px; }

#boardWrap { position: relative; }
#board {
  position: relative; width: 100%;
  background: var(--table); border: 1px solid var(--line); border-radius: 14px;
  overflow: hidden; user-select: none; -webkit-user-select: none;
}
.slot {
  position: absolute; left: 0; top: 0; width: var(--cw); height: var(--ch);
  border: 2px dashed #cdbd98; border-radius: calc(var(--cw) * .1);
  display: flex; align-items: center; justify-content: center;
  font-size: calc(var(--cw) * .5); color: #cdbd98;
}
.slot.home { border-style: solid; background: rgba(255, 255, 255, .35); }
.slot.home.red { color: #e3b1a6; }
.slot.col { border-color: transparent; }
.slot.col.open { border-color: #cdbd98; }

.card {
  position: absolute; left: 0; top: 0; width: var(--cw); height: var(--ch);
  background: #fffdf8; border: 1px solid #a99c7e; border-radius: calc(var(--cw) * .1);
  box-shadow: 0 1px 2px rgba(60, 45, 20, .18);
  font-size: calc(var(--cw) * .3); line-height: 1; font-weight: 700;
  color: var(--black); cursor: pointer; touch-action: none;
  transition: transform .2s ease;
  will-change: transform;
}
.card.red { color: var(--red); }
.card .idx { position: absolute; top: 5%; left: 7%; white-space: nowrap; letter-spacing: -.5px; }
.card .pip { position: absolute; right: 8%; bottom: 5%; font-size: 1.9em; font-weight: 400; }
.card.drag, .noanim .card { transition: none; }
.card.drag { box-shadow: 0 6px 14px rgba(60, 45, 20, .35); cursor: grabbing; }
.card.sel { background: #fff3b8; border-color: #b8860b; }
.card.hint { background: #c9f1ec; border-color: var(--teal); animation: glowT .8s ease infinite; }
.card.hintTo, .slot.hintTo { border-color: var(--pink); animation: glowP .8s ease infinite; }
.card.hintTo { background: #fde0ec; }
.card.nope { animation: nope .3s ease; }
@keyframes glowT { 50% { box-shadow: 0 0 0 4px rgba(15, 127, 118, .45); } }
@keyframes glowP { 50% { box-shadow: 0 0 0 4px rgba(194, 24, 91, .4); } }
@keyframes nope { 50% { background: #f8c9c4; } }

#win {
  position: absolute; left: 50%; top: 42%; transform: translate(-50%, -50%);
  background: #fffdf8; border: 2px solid var(--teal); border-radius: 16px;
  padding: 18px 26px; text-align: center; z-index: 2000;
  box-shadow: 0 8px 24px rgba(60, 45, 20, .25);
}
#win h2 { margin: 0 0 4px; color: var(--pink); }
#win p { margin: 0 0 12px; }
.hidden { display: none; }

#more { margin-top: 14px; }
#pick { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 14px; margin-bottom: 10px; }
#pick input { width: 120px; }
details { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; }
summary { cursor: pointer; font-weight: 600; }
details ul { margin: 8px 0 4px; padding-left: 20px; }
details li { margin: 4px 0; }

@media (max-width: 520px) {
  #app { padding: 8px 8px 24px; }
  h1 { font-size: 20px; }
  .stats { gap: 8px; }
  .stat b { font-size: 15px; }
  button { padding: 7px 9px; font-size: 14px; }
  .card .pip { font-size: 1.6em; }
}