:root {
  --felt: #35654d; --dim: rgba(255,255,255,0.6); --accent: #ffd166;
  --slot: rgba(255,255,255,0.18);
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100dvh; background: var(--felt);
  color: #fff; font: 15px/1.4 system-ui, -apple-system, sans-serif;
  -webkit-text-size-adjust: 100%;
}
.page { padding: 8px clamp(6px, 2vw, 14px) 24px; max-width: 720px; margin: 0 auto; }
.page__head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 6px; }
.page__head h1 { font-size: 17px; margin: 0; }
.page__note { font-size: 11px; color: var(--dim); }

#controls { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 10px; }
#controls button {
  font: inherit; font-size: 13px; padding: 5px 10px; border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.25); background: rgba(255,255,255,0.08); color: #fff; cursor: pointer;
}
#controls button:active { background: rgba(255,255,255,0.2); }
.k-ctl-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--dim); margin-left: 6px; }

.k-top { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 14px; align-items: flex-start; }
.k-stockwaste, .k-foundations { display: flex; gap: 5px; align-items: flex-start; }
.k-waste { display: flex; align-items: flex-start; }
.k-waste .card + .card { margin-left: calc(var(--card-w) * -0.62); }
.k-pile { display: flex; flex-direction: column; align-items: center; }
.k-label { font-size: 10px; color: var(--dim); margin-top: 2px; }

.k-slot { border: 1.5px dashed var(--slot); border-radius: 8px; }

.k-tableau { display: flex; justify-content: center; gap: 5px; align-items: flex-start; }
.k-col { display: flex; flex-direction: column; align-items: center; }

/* Compare mode: force the covered face-up label back to the vertical corner. */
.labels-v .card--peek-strip .card__strip { display: none; }
.labels-v .card--peek-strip .idx--tl { display: flex; }

/* ---- interactive game states ------------------------------------------ */
.k-controls { display: flex; gap: 6px; }
.k-controls button {
  font: inherit; font-size: 13px; padding: 5px 11px; border-radius: 8px; cursor: pointer;
  border: 1px solid rgba(255,255,255,0.25); background: rgba(255,255,255,0.08); color: #fff;
}
.k-controls button.primary { background: var(--accent); color: #1a1a1a; border-color: transparent; font-weight: 700; }
.k-controls button:active { transform: translateY(1px); }

.k-stock { cursor: pointer; }
.k-found { position: relative; }
.k-slot { display: flex; align-items: center; justify-content: center; font-size: 20px; color: var(--slot); }

.k-draggable { cursor: grab; touch-action: none; }
.k-dragging { cursor: grabbing; position: relative; z-index: 100; box-shadow: 0 8px 22px rgba(0,0,0,0.5); }
.k-target { outline: 3px solid var(--accent); outline-offset: 1px; border-radius: 9px; }
.k-col.k-target { outline-offset: -1px; }

.k-win { text-align: center; font-size: 22px; font-weight: 800; color: var(--accent); margin-top: 16px; }
.klondike--won .k-tableau { opacity: 0.85; }

/* ---- hint --------------------------------------------------------------- */
.k-hint { outline: 3px solid var(--accent); outline-offset: 1px; border-radius: 8px; z-index: 40; position: relative; animation: kHintPulse 0.85s ease-in-out 2; }
.k-hint-target { outline: 3px dashed var(--accent); outline-offset: 1px; border-radius: 9px; }
@keyframes kHintPulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(255,209,102,0); } 50% { box-shadow: 0 0 0 7px rgba(255,209,102,0.4); } }
.k-nomoves { animation: kShake 0.42s ease; }
@keyframes kShake { 20% { transform: translateX(-4px); } 60% { transform: translateX(4px); } 100% { transform: translateX(0); } }
@media (prefers-reduced-motion: reduce) { .k-hint, .k-nomoves { animation: none; } }

/* ---- auto-complete ----------------------------------------------------- */
.k-auto {
  display: block; margin: 16px auto 0; padding: 10px 22px; border-radius: 10px;
  font: inherit; font-size: 15px; font-weight: 700; cursor: pointer;
  background: var(--accent); color: #1a1a1a; border: none;
  box-shadow: 0 3px 12px rgba(0,0,0,0.35);
  animation: kHintPulse 1.2s ease-in-out infinite;
}
.k-auto:active { transform: translateY(1px); }
@media (prefers-reduced-motion: reduce) { .k-auto { animation: none; } }

.k-controls .gear { font-size: 16px; padding: 4px 9px; line-height: 1; }