body {
  background: #fff;
  min-height: 100vh;
  user-select: none;
}

.main-content {
  max-width: 1300px;
  margin: 0 auto;
  padding: 32px 32px 60px;
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.game-header h1 { font-size: 38px; font-weight: 400; margin: 0; }
.game-controls {
  display: flex; 
  gap: 10px; 
  flex-wrap: wrap; 
  align-items: center; 
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
}

.btn {
  border: 1px solid #818181;
  background: #fff;
  color: #000;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.8px;
  border-radius: 6px;
  transition: background 0.15s, opacity 0.15s;
  font-family: inherit;
}
.btn:hover { background: #f5f5f5; }
.btn:active { opacity: 0.7; }

#scoreDisplay { font-size: 13px; color: #555; letter-spacing: 0.5px; }

.top-row { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 20px; flex-wrap: wrap; }
.spacer { flex: 1; }
.foundations { display: flex; gap: 14px; }

.card-slot {
  width: 190px;
  height: 266px;
  border-radius: 8px;
  border: 1px dashed #ccc;
  background: transparent;
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-slot .suit-hint { font-size: 36px; color: rgba(0,0,0,0.12); pointer-events: none; }
.card-slot:has(.card) { border-color: transparent; }

.tableau { display: flex; gap: 14px; align-items: flex-start; }
.tableau-col { width: 190px; flex-shrink: 0; min-height: 280px; position: relative; }

.card {
  width: 190px;
  height: 266px;
  border-radius: 8px;
  overflow: hidden;
  position: absolute;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  transition: box-shadow 0.12s, transform 0.12s;
  flex-shrink: 0;
  z-index: 1;
}
.card img { width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; border-radius: 8px; }
.card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.14); }
.card.selected { box-shadow: 0 0 0 1.5px #000, 0 2px 8px rgba(0,0,0,0.12); transform: translateY(-5px); }

#dragGhost { position: fixed; pointer-events: none; z-index: 9999; display: none; }
#dragGhost .card { position: relative; left: 0 !important; top: 0 !important; }

.drop-target-active { outline: 1px solid rgba(0,0,0,0.25); outline-offset: 2px; border-radius: 8px; }

#winOverlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.88);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 24px;
}
#winOverlay.show { display: flex; }
#winOverlay h2 { font-size: 52px; font-weight: 400; }
#winOverlay p { font-size: 16px; color: #555; }

#toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #111;
  color: #fff;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 9998;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Tablet */
@media (max-width: 1300px) {
  .card, .card-slot { width: 144px; height: 202px; }
  .tableau-col { width: 144px; }
  .top-row, .tableau { gap: 10px; }
  .foundations { gap: 10px; }
}

/* Phone: fluid — fit 6 cols */
@media (max-width: 700px) {
  .main-content { padding: 14px 8px 40px; }
  .game-header { margin-bottom: 16px; }
  .game-header h1 { font-size: 26px; }
  .top-row { gap: 4px; margin-bottom: 10px; }
  .foundations { gap: 4px; }
  .tableau { gap: 4px; }
  .card, .card-slot {
    width: calc((100vw - 36px) / 6);
    height: calc((100vw - 36px) / 6 * 1.4);
    border-radius: 5px;
  }
  .card-slot .suit-hint { font-size: 16px; }
  .tableau-col {
    width: calc((100vw - 36px) / 6);
    min-height: calc((100vw - 36px) / 6 * 1.6);
  }
}