/* ==== Reset ==== */
* { margin: 0; padding: 0; box-sizing: border-box; }


/* ==== Layout chính ==== */
.ranger-box {
  max-width: 1200px;
  margin: auto;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  padding: 30px;
}
.ranger-head { text-align: center; margin-bottom: 20px; }
.ranger-main-title { font-size: 32px; color: #1e3e6c; margin-bottom: 10px; }
.ranger-sub-title { font-size: 18px; color: #444; }

/* ==== Slider ==== */
.ranger-slider {
  position: relative;
  max-width: 100%;
  height: 400px;
  overflow: hidden;
  margin-bottom: 30px;
  border-radius: 10px;
}
.slides { display: flex; transition: transform 0.5s ease-in-out; }
.slide { min-width: 100%; height: 400px; }
.slide img {
  width: 100%; height: 100%; object-fit: cover;
}
.prev, .next {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(0,0,0,0.5); color: #fff; border: none;
  padding: 10px; cursor: pointer; border-radius: 50%;
}
.prev { left: 15px; }
.next { right: 15px; }
.dots {
  position: absolute; bottom: 15px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px;
}
.dots button {
  width: 12px; height: 12px; border-radius: 50%;
  border: none; background: #bbb; cursor: pointer;
}
.dots button.active { background: #c62828; }

/* ==== Nội dung ==== */
.ranger-content { margin-top: 20px; }
.ranger-sec { margin-bottom: 25px; }
.ranger-sec h3 {
  font-size: 22px;
  margin-bottom: 10px;
  color: #c62828;
  border-left: 4px solid #c62828;
  padding-left: 10px;
}
.ranger-sec p { text-align: justify; margin-bottom: 10px; }
.ranger-sec ul { margin-left: 20px; list-style: disc; }
.ranger-sec ul li { margin-bottom: 8px; }

/* ==== CTA ==== */
.ranger-cta {
  background: #f4f4f4;
  padding: 20px;
  border-radius: 10px;
  text-align: center;
}
.ranger-cta h3 { margin-bottom: 10px; color: #1e3e6c; }
.ranger-cta p { margin-bottom: 15px; }
.ranger-btn {
  display: inline-block; background: #c62828; color: #fff;
  padding: 12px 25px; border-radius: 8px; text-decoration: none;
  font-weight: bold; transition: background 0.3s ease;
}
.ranger-btn:hover { background: #a91d1d; }

/* ==== Responsive ==== */
@media (max-width: 768px) {
  .ranger-main-title { font-size: 24px; }
  .ranger-slider { height: 250px; }
  .slide { height: 250px; }
}