body {
  font-family: Arial, sans-serif;
  background: #000000; /* black background */
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0;
  padding-top: 40px;
}

.summary {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 20px;
  font-weight: bold;
  font-size: 16px;
  color: white;
}

.summary .advances { color: #00ff33; }  /* green */
.summary .declines { color: #ff3333; }  /* red */
.summary .unchanged { color: #d2b48c; } /* brown */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 15px;
  max-width: 1000px;
}

.cube {
  border-radius: 15px;
  width: 120px;
  height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white; /* always white for text */
  cursor: pointer;
  padding: 10px;
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
  transition: transform 0.2s, box-shadow 0.2s;
  text-align: center;
  position: relative; /* required for ripple positioning */
  overflow: hidden;   /* hides ripple overflow */
}

.cube:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(255, 255, 255, 0.3);
}

.symbol {
  font-weight: bold;
  font-size: 18px;
}

.pchange {
  font-size: 14px;
  margin-top: 5px;
}

.turnover {
  font-size: 12px;
  margin-top: 3px;
}

.ripple {
  position: absolute;
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  transform: scale(0);
  animation: rippleAnim 0.35s linear;
  pointer-events: none; /* don’t block clicks */
}

@keyframes rippleAnim {
  to {
    transform: scale(8);
    opacity: 0;
  }
}