* {box-sizing: border-box; margin: 0; padding: 0;}
.slider {
  position: relative;
  width: 100%;
  max-width: 1600px;
  height: 700px;
  margin: auto;
  overflow: hidden;
}
.slides {
  display: flex;
  transition: transform 0.8s ease-in-out;
  width: 400%;
}
.slide {
  min-width: 100%;
  height: 700px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2.5rem;
  font-weight: bold;
  color: white;
  position: relative;
  text-align: center;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0; left: 0;
  z-index: -1;
}
.arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  color: white;
  border: none;
  font-size: 2rem;
  padding: 10px;
  cursor: pointer;
  border-radius: 50%;
  z-index: 10;
}
.arrow.left { left: 20px; }
.arrow.right { right: 20px; }
.dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
}
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.6);
  cursor: pointer;
}
.dot.active { background: white; }