/* TIMELINE SCROLL CONTAINER */
  .timeline-scroll-wrap {
    overflow-x: auto;
    overflow-y: visible;
    padding: 0 0 40px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: #3aaa6b #e0ebe6;
  }
 
  .timeline-scroll-wrap::-webkit-scrollbar {
    height: 4px;
  }
  .timeline-scroll-wrap::-webkit-scrollbar-track { background: #e0ebe6; border-radius: 4px; }
  .timeline-scroll-wrap::-webkit-scrollbar-thumb { background: #3aaa6b; border-radius: 4px; }
 
  .timeline-track {
    display: flex;
    /* align-items: flex-end; */
    min-width: max-content;
    /* padding: 0 40px; */
    gap: 0;
    position: relative;
  }
 
  /* HORIZONTAL LINE */
  .timeline-track::after {
    content: '';
    position: absolute;
    bottom: 44px;
    left: 40px;
    right: 40px;
    height: 4px;
    /* background: linear-gradient(90deg,
      #f87171 0%,
      #fb923c 14%,
      #facc15 28%,
      #4ade80 42%,
      #22d3ee 56%,
      #818cf8 70%,
      #f472b6 84%,
      #3aaa6b 100%
    ); */
    background: rgba(255, 255, 255, 0.18);
    border-radius: 4px;
    z-index: 0;
  }
 
  /* ARROW AT END */
  .timeline-track::before {
    content: '';
    position: absolute;
    bottom: 38px;
    right: 32px;
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 16px solid rgba(255, 255, 255, 0.5);
    z-index: 1;
  }
 
  /* MILESTONE ITEM */
  .milestone {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 265px;
    padding-top: 3rem;
    flex-shrink: 0;
    position: relative;
    cursor: pointer;
  }
 
  /* CARD (pentagon/shield shape via clip-path) */
  .milestone-card {
    position: relative;
    background: #fff;
    width: 210px;
    min-height: 282px;
    padding: 3rem 14px 24px;
    border-radius: 12px 12px 0 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    box-shadow: 0 4px 18px rgba(0,0,0,0.07);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    margin-bottom: 0;
  }
 
  /* Pentagon bottom notch */
  .milestone-card::after {
    content: '';
    position: absolute;
    bottom: -19px;
    left: 56%;
    transform: translateX(-56%);
    width: 0;
    height: 0;
    border-left: 105px solid transparent;
    border-right: 105px solid transparent;
    border-top: 20px solid #fff;
    filter: drop-shadow(0 4px 3px rgba(0, 0, 0, 0.04));
    z-index: 2;
  }
 
  .milestone:hover .milestone-card {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.13);
  }
 
  /* ICON CIRCLE */
  .milestone-icon {
    position: absolute;
    top: -20px; /* half the icon height, so it straddles the border */
    left: 50%;
    transform: translateX(-50%);
    width: 58px;
    height: 58px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--green-light);
  }

  .milestone-icon svg {
    width: 36px;
    height: 36px;
  }
 
  .milestone-desc {
    font-size: 0.875rem;
    color: #6b8b7a;
    line-height: 1.55;
    font-weight: 400;
    flex: 1;
  }
 
  /* CONNECTOR: vertical line from card to dot */
  .milestone-connector {
    width: 2px;
    height: 28px;
    margin-top: 20px;
    position: relative;
    z-index: 1;
  }
 
  /* DOT ON LINE */
  .milestone-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px currentColor;
    position: relative;
    z-index: 2;
    margin-bottom: 10px;
    transition: transform 0.2s ease;
    z-index: 4;
  }
 
  .milestone:hover .milestone-dot {
    transform: scale(1.3);
    color: var(--green-vivid);
    background: var(--green-vivid);
  }
 
  /* YEAR LABEL */
  .milestone-year {
    font-size: 16px;
    font-weight: 900;
    letter-spacing: -0.3px;
    margin-top: 2px;
    color: var(--green-vivid)
  }
 
  /* COLOR THEMES */
  /* .m1 .milestone-icon { background: rgba(248,113,113,0.12); }
  .m1 .milestone-order { color: #f87171; }
  .m1 .milestone-connector { background: #f87171; }
  .m1 .milestone-dot { color: #f87171; background: #f87171; }
 
  .m2 .milestone-icon { background: rgba(251,146,60,0.12); }
  .m2 .milestone-order { color: #fb923c; }
  .m2 .milestone-connector { background: #fb923c; }
  .m2 .milestone-dot { color: #fb923c; background: #fb923c; }
 
  .m3 .milestone-icon { background: rgba(250,204,21,0.14); }
  .m3 .milestone-order { color: #d97706; }
  .m3 .milestone-connector { background: #facc15; }
  .m3 .milestone-dot { color: #facc15; background: #facc15; }
 
  .m4 .milestone-icon { background: rgba(74,222,128,0.13); }
  .m4 .milestone-order { color: #16a34a; }
  .m4 .milestone-connector { background: #4ade80; }
  .m4 .milestone-dot { color: #4ade80; background: #4ade80; }
 
  .m5 .milestone-icon { background: rgba(34,211,238,0.13); }
  .m5 .milestone-order { color: #0891b2; }
  .m5 .milestone-connector { background: #22d3ee; }
  .m5 .milestone-dot { color: #22d3ee; background: #22d3ee; }
 
  .m6 .milestone-icon { background: rgba(129,140,248,0.13); }
  .m6 .milestone-order { color: #6366f1; }
  .m6 .milestone-connector { background: #818cf8; }
  .m6 .milestone-dot { color: #818cf8; background: #818cf8; }
 
  .m7 .milestone-icon { background: rgba(244,114,182,0.13); }
  .m7 .milestone-order { color: #db2777; }
  .m7 .milestone-connector { background: #f472b6; }
  .m7 .milestone-dot { color: #f472b6; background: #f472b6; }
 
  .m8 .milestone-icon { background: rgba(58,170,107,0.13); }
  .m8 .milestone-order { color: #3aaa6b; }
  .m8 .milestone-connector { background: #3aaa6b; }
  .m8 .milestone-dot { color: #3aaa6b; background: #3aaa6b; }
 
  .m9 .milestone-icon { background: rgba(96,165,250,0.13); }
  .m9 .milestone-order { color: #2563eb; }
  .m9 .milestone-connector { background: #60a5fa; }
  .m9 .milestone-dot { color: #60a5fa; background: #60a5fa; }
 
  .m10 .milestone-icon { background: rgba(248,113,113,0.12); }
  .m10 .milestone-order { color: #e11d48; }
  .m10 .milestone-connector { background: #f87171; }
  .m10 .milestone-dot { color: #f87171; background: #f87171; }
 
  .m11 .milestone-icon { background: rgba(251,146,60,0.12); }
  .m11 .milestone-order { color: #c2410c; }
  .m11 .milestone-connector { background: #fb923c; }
  .m11 .milestone-dot { color: #fb923c; background: #fb923c; }
 
  .m12 .milestone-icon { background: rgba(74,222,128,0.13); }
  .m12 .milestone-order { color: #15803d; }
  .m12 .milestone-connector { background: #4ade80; }
  .m12 .milestone-dot { color: #4ade80; background: #4ade80; }
 
  .m13 .milestone-icon { background: rgba(129,140,248,0.13); }
  .m13 .milestone-order { color: #4f46e5; }
  .m13 .milestone-connector { background: #818cf8; }
  .m13 .milestone-dot { color: #818cf8; background: #818cf8; }
 
  .m14 .milestone-icon { background: rgba(244,114,182,0.13); }
  .m14 .milestone-order { color: #9d174d; }
  .m14 .milestone-connector { background: #f472b6; }
  .m14 .milestone-dot { color: #f472b6; background: #f472b6; }
 
  .m15 .milestone-icon { background: rgba(58,170,107,0.15); }
  .m15 .milestone-order { color: #166534; }
  .m15 .milestone-connector { background: #3aaa6b; }
  .m15 .milestone-dot { color: #3aaa6b; background: #3aaa6b; }
  .m15 .milestone-year { color: #166534; } */
 
  /* FADE-IN */
  @keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
  }
 
  .milestone {
    animation: slideUp 0.5s ease both;
  }
  .milestone:nth-child(1)  { animation-delay: 0.05s; }
  .milestone:nth-child(2)  { animation-delay: 0.10s; }
  .milestone:nth-child(3)  { animation-delay: 0.15s; }
  .milestone:nth-child(4)  { animation-delay: 0.20s; }
  .milestone:nth-child(5)  { animation-delay: 0.25s; }
  .milestone:nth-child(6)  { animation-delay: 0.30s; }
  .milestone:nth-child(7)  { animation-delay: 0.35s; }
  .milestone:nth-child(8)  { animation-delay: 0.40s; }
  .milestone:nth-child(9)  { animation-delay: 0.45s; }
  .milestone:nth-child(10) { animation-delay: 0.50s; }
  .milestone:nth-child(11) { animation-delay: 0.55s; }
  .milestone:nth-child(12) { animation-delay: 0.60s; }
  .milestone:nth-child(13) { animation-delay: 0.65s; }
  .milestone:nth-child(14) { animation-delay: 0.70s; }
  .milestone:nth-child(15) { animation-delay: 0.75s; }