:root { --dur: 4s; }

.story {
  width: min(320px, 80vw);
  aspect-ratio: 9/16;
  margin: 2rem auto;
  position: relative;
  border: 0px solid #ccc;
  border-radius: 24px;
  overflow: hidden;
  background: #000;
}

.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: translateX(var(--tx,0%));
  transition: transform .35s ease;
  pointer-events: none;
}

.progress {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  gap: 4px;
  height: 3px;
  z-index: 20;
}

.bar {
  flex: 1;
  background: rgba(255,255,255,.3);
  overflow: hidden;
  border-radius: 999px;
}

.fill {
  display: block;
  height: 100%;
  width: 100%;
  background: #fff;
  border-radius: 999px;
  transform: scaleX(0);
  transform-origin: left;
  animation: grow var(--dur) linear paused;
  will-change: transform;
}

@keyframes grow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.bar.done .fill {
  transform: scaleX(1);
  animation: none;
}

.tap {
  position: absolute;
  inset: 0;
  width: 50%;
  cursor: pointer;
  z-index: 30;
}
.tap.right { left: 50%; }

.story button {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 100px;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
    z-index: 30;
  }
  
  .story button:hover {
    background-color: white;
    color: black;
  }
  
 
  

.toast {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  background: #333;
  color: #fff;
  padding: .5rem 1rem;
  border-radius: 8px;
  font-size: .875rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}

.toast.show { opacity: 1; }

#loader {
  margin: 3rem auto;
  font-size: 1rem;
  color: #666;
}