/* ---- Canvas ---- */
#canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  background: #0a0a14;
}

/* ---- Controls overlay ---- */
.controls-card {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20, 18, 30, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 12px 20px;
  z-index: 10;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.controls-card .row {
  gap: 14px;
}

.controls-card .btn {
  padding: 8px 14px;
  font-size: 1.1rem;
  border-radius: 10px;
  min-width: 42px;
}

.controls-card .btn.secondary {
  border-color: rgba(255, 255, 255, 0.25);
  color: #ccc;
}

#speedSlider {
  width: 100px;
  accent-color: #c98a5e;
  cursor: pointer;
}

.speed-label {
  color: #ddd;
  font-weight: 600;
  font-size: 0.95rem;
  min-width: 36px;
  text-align: center;
}

/* ---- Tooltip / Info card ---- */
.tooltip {
  position: fixed;
  z-index: 20;
  background: rgba(20, 18, 30, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  padding: 20px 24px;
  max-width: 300px;
  color: #eee;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  animation: tooltipIn 0.25s ease-out;
}

@keyframes tooltipIn {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.tooltip-close {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: none;
  color: #999;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  border-radius: 6px;
  transition: color 0.15s;
}
.tooltip-close:hover {
  color: #fff;
}

.tooltip-emoji {
  font-size: 2.4rem;
  margin-bottom: 4px;
}

.tooltip-name {
  margin: 0 0 8px;
  font-size: 1.3rem;
  color: #fff;
}

.tooltip-fact {
  margin: 0;
  font-size: 0.9rem;
  color: #bbb;
  line-height: 1.5;
}

/* ---- Responsive ---- */
@media (max-width: 500px) {
  .controls-card {
    left: 8px;
    right: 8px;
    transform: none;
    border-radius: 14px;
    padding: 10px 14px;
  }
  .controls-card .row {
    gap: 8px;
    justify-content: center;
  }
  #speedSlider {
    width: 70px;
  }
  .tooltip {
    max-width: 260px;
    padding: 16px 18px;
  }
}