/* ==============================================
   Hdev Timeline (dọc, vòng số tự đánh)
   ============================================== */

.hdev-timeline {
  --tl-dot: 44px;
  position: relative;
  margin: 0 auto;
  counter-reset: hdev-tl;
}

.hdev-timeline__item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 22px;
  padding-bottom: 22px;
  counter-increment: hdev-tl;
}

.hdev-timeline__item:last-child {
  padding-bottom: 0;
}

/* Đường nối giữa các vòng số */
.hdev-timeline__item::before {
  content: "";
  position: absolute;
  top: var(--tl-dot);
  bottom: 0;
  left: calc(var(--tl-dot) / 2 - 1px);
  width: 2px;
  background-color: var(--hdev-orange-line);
}

.hdev-timeline__item:last-child::before {
  display: none;
}

/* Vòng số */
.hdev-timeline__dot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: var(--tl-dot);
  height: var(--tl-dot);
  border: 2px solid var(--hdev-orange);
  border-radius: 50%;
  background-color: #fff;
  color: var(--hdev-orange);
  font-size: 17px;
  font-weight: 700;
}

.hdev-timeline__dot::before {
  content: counter(hdev-tl);
}

.hdev-timeline--first-active .hdev-timeline__item:first-child .hdev-timeline__dot,
.hdev-timeline__item.is-active .hdev-timeline__dot {
  background-color: var(--hdev-orange);
  color: #fff;
}

/* Nội dung mốc */
.hdev-timeline__body {
  flex: 1;
  min-width: 0;
}

.hdev-timeline--card .hdev-timeline__body {
  padding: 16px 22px;
  border: 1px solid var(--hdev-orange-line);
  border-radius: var(--hdev-radius);
  background-color: #fff;
}

.hdev-timeline--plain .hdev-timeline__body {
  padding-top: 2px;
}

.hdev-timeline__period {
  margin-bottom: 4px;
  color: var(--hdev-orange-dark);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.hdev-timeline__title {
  margin: 0 0 4px;
  color: var(--hdev-text);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.hdev-timeline__sub {
  color: var(--hdev-muted);
  font-size: 14px;
  line-height: 1.5;
}

@media (max-width: 549px) {
  .hdev-timeline {
    --tl-dot: 36px;
  }

  .hdev-timeline__item {
    gap: 14px;
    padding-bottom: 16px;
  }

  .hdev-timeline__dot {
    font-size: 15px;
  }

  .hdev-timeline--card .hdev-timeline__body {
    padding: 14px 16px;
  }

  .hdev-timeline__title {
    font-size: 16px;
  }
}