/* Shared navigation styles for all slide decks */

.back-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.3s, transform 0.2s;
  font-family: inherit;
}

.back-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

.slide-dots {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  gap: 8px;
}

.slide-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
  padding: 0;
}

.slide-dots .dot.active {
  background: rgba(255, 255, 255, 0.9);
  transform: scale(1.3);
}

.slide-dots .dot:hover {
  background: rgba(255, 255, 255, 0.6);
}

/* Arrow hints */
.arrow-hint {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  font-size: 36px;
  color: rgba(255, 255, 255, 0.3);
  pointer-events: none;
  transition: opacity 0.5s;
}

.arrow-hint.left { left: 20px; }
.arrow-hint.right { right: 20px; }

.arrow-hint.hidden { opacity: 0; }

/* Click zones */
.click-zone {
  position: fixed;
  top: 0;
  width: 30%;
  height: 100%;
  z-index: 100;
  cursor: pointer;
}

.click-zone.left { left: 0; }
.click-zone.right { right: 0; }

/* Slide counter */
.slide-counter {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
  font-family: inherit;
}