:root {
  --card-w: 84px;
  --card-h: 122px;
  --cascade: 26px;
  --felt: #0b5d3b;
  --felt-dark: #084a2f;
  --gold: #d9b45c;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: radial-gradient(ellipse at top, var(--felt), var(--felt-dark));
  color: #eee;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  overflow-x: hidden;
  user-select: none;
  -webkit-user-select: none;
}

#topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 20px;
  background: rgba(0,0,0,0.25);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-wrap: wrap;
}

#topbar h1 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.04em;
  color: var(--gold);
  margin-right: auto;
}

.stats {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: #cde;
  font-variant-numeric: tabular-nums;
}

.controls {
  display: flex;
  gap: 8px;
}

.controls button {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  color: #eee;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
}
.controls button:hover { background: rgba(255,255,255,0.18); }
.controls button:disabled { opacity: 0.4; cursor: default; }

#board {
  padding: 24px 28px 60px;
  max-width: 900px;
  margin: 0 auto;
}

#top-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 34px;
}

#stock-waste, #foundations, #tableau {
  display: flex;
  gap: 14px;
}

.pile {
  position: relative;
  width: var(--card-w);
  height: var(--card-h);
  border-radius: 8px;
  border: 1.5px solid rgba(255,255,255,0.18);
  background: rgba(0,0,0,0.12);
}

.foundation::before {
  content: attr(data-suit-glyph);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  color: rgba(255,255,255,0.12);
  pointer-events: none;
}

.column {
  min-height: 420px;
  border: none;
  background: rgba(0,0,0,0.10);
  border-radius: 8px;
}

#tableau { align-items: flex-start; }

.card {
  position: absolute;
  top: 0; left: 0;
  width: var(--card-w);
  height: var(--card-h);
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.4);
  transition: box-shadow 0.15s;
  cursor: grab;
}

.card.dragging {
  cursor: grabbing;
  box-shadow: 0 12px 24px rgba(0,0,0,0.55);
  z-index: 500;
}

.card img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 8px;
  pointer-events: none;
}

.card.face-up {
  background: #fbf7ee;
  border: 1px solid rgba(0,0,0,0.15);
}

.card.face-down {
  border: 1px solid rgba(0,0,0,0.25);
  cursor: default;
}

.card.not-draggable { cursor: default; }

.empty-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.35);
  font-size: 12px;
  pointer-events: none;
}

#drag-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
}

#win-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}
#win-overlay.hidden { display: none; }

#win-card {
  background: #133;
  border: 1px solid var(--gold);
  border-radius: 12px;
  padding: 32px 40px;
  text-align: center;
}
#win-card h2 { color: var(--gold); margin: 0 0 8px; }
#win-card button {
  margin-top: 16px;
  background: var(--gold);
  border: none;
  color: #222;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 6px;
  cursor: pointer;
}

@media (max-width: 720px) {
  :root { --card-w: 42px; --card-h: 60px; --cascade: 16px; }
  #board { padding: 12px; }
  .card-corner { font-size: 9px; width: 12px; }
  .card-corner .suit { font-size: 8px; }
  .card-center { font-size: 18px; }
  #top-row { margin-bottom: 20px; }
  .column { min-height: 260px; }
}