/* Layout utama */
.about-wrapper {
  display: flex;
  gap: 50px;
  padding: 60px 40px;
  align-items: flex-start;
  justify-content: center;
  margin: 0 auto;
  font-family: "Content-Bold", Helvetica;
}

/* KIRI */
.about-menu {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-menu,
.about-content,
.vision-mission {
  padding: 10px 0;
}

.menu-btn {
  width: 180px;
  padding: 15px;
  border: none;
  background-color: #c49f12;
  color: #fff;
  cursor: pointer;
  transition: 0.3s;
  opacity: 0.7;
  font-weight: bold;
}

.menu-btn:hover {
  background-color: #a8860f;
  color: #fff;
  opacity: 0.9;
}

.menu-btn.active {
  background-color: #a8860f;
  color: #fff;
  opacity: 1;
}

/* KONTEN kanan + tengah */
.about-main {
  flex: 3;
}

/* Setiap group = 2 kolom */
.content-group {
  display: none;
  gap: 30px;
  justify-content: center;
}

.content-group.active {
  display: flex;
  align-items: flex-start;
}

.about-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  max-width: 1200px;
  flex: 3;
  line-height: 1.5;
}

.vision-mission {
  display: flex;
  flex-direction: column;
  align-self: flex-start;
  gap: 12px;
  flex: 1;
  line-height: 1.5;
}

/*Milestone*/
.timeline {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin-top: 20px;
}
/*Garis_tengah*/
.timeline::after {
  content: "";
  position: absolute;
  width: 4px;
  background-color: #c49f12;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 0;
}

.timeline-title {
  position: relative;
  text-align: center;
  margin-bottom: 40px;
  font-size: 20px;
  font-weight: bold;
  background: #fff;
  display: inline-block;
  padding: 6px 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.timeline-item {
  padding: 20px 40px;
  position: relative;
  width: 50%;
}

.timeline-item.left {
  left: 0;
  text-align: right;
}

.timeline-item.right {
  left: 50%;
}

.timeline-item::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  background-color: #c49f12;
  border: 4px solid #c49f12;
  top: 25px;
  border-radius: 50%;
  z-index: 1;
}

.timeline-item.left::after {
  right: -8px;
}

.timeline-item.right::after {
  left: -8px;
}

.timeline-item .content {
  text-align: center;
  display: flex;
  flex-direction: column;
  max-width: 500px;
  background: #fff;
  padding: 15px 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .about-wrapper {
    flex-direction: column;
    align-items: center;
  }

  .content-group.active {
    flex-direction: column;
    align-items: center;
  }

  .about-menu {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }

  /*Milestone*/
  .timeline::after {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 50px;
    padding-right: 20px;
  }

  .timeline-item.left,
  .timeline-item.right {
    left: 0;
    text-align: left;
  }

  .timeline-item::after {
    left: 12px;
  }
}