/* Zig-zag timeline — straight lines, fixed row heights, number+heading same size */
.zz {
  position: relative;
  margin: 64px auto 0;
  max-width: 1040px;
  padding: 0;
}
.zz-path {
  position: absolute;
  left: 0; top: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: visible;
}
.zz-flow-stroke {
  stroke-dasharray: 180 10000;
  stroke-dashoffset: 180;
  filter: drop-shadow(0 0 8px rgba(19,43,60,0.35));
  opacity: 0.95;
}
/* 6 rows × 260px = 1560px; card centers-y: 130, 390, 650, 910, 1170, 1430 */
.zz-row {
  position: relative;
  z-index: 2;
  height: 260px;
  display: flex;
  align-items: center;
}
.zz-row.zz-right { justify-content: flex-end; }
.zz-row.zz-left  { justify-content: flex-start; }

.zz-bg {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 22px;
  z-index: 5;
  pointer-events: none;
  user-select: none;
  padding: 0;
}
.zz-row.zz-right .zz-bg { left: 0; }
.zz-row.zz-left  .zz-bg { right: 0; }

.zz-bn, .zz-bh {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 96px;
  line-height: 0.9;
  letter-spacing: -0.035em;
  position: relative;
  z-index: 6;
}
.zz-bn {
  color: transparent;
  -webkit-text-stroke: 2px var(--text-heading);
}
.zz-bh { color: var(--text-heading); }

.zz-card {
  width: 46%;
  background: var(--primary-800);
  color: #fff;
  border-radius: 18px;
  padding: 26px 28px;
  box-shadow: 0 24px 60px -20px rgba(19,43,60,0.45), 0 1px 0 rgba(255,255,255,0.06) inset;
  border: 1px solid rgba(255,255,255,0.08);
  position: relative;
  z-index: 3;
  opacity: 0;
  transform: translateY(12px);
  animation: zz-rise .7s var(--e-out) forwards;
}
.zz-row:nth-child(2) .zz-card { animation-delay: 0.05s; }
.zz-row:nth-child(3) .zz-card { animation-delay: 0.15s; }
.zz-row:nth-child(4) .zz-card { animation-delay: 0.25s; }
.zz-row:nth-child(5) .zz-card { animation-delay: 0.35s; }
.zz-row:nth-child(6) .zz-card { animation-delay: 0.45s; }
.zz-row:nth-child(7) .zz-card { animation-delay: 0.55s; }
@keyframes zz-rise { to { opacity: 1; transform: translateY(0); } }

.zz-card::before {
  content: "";
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--primary-800);
  border: 3px solid #fff;
  box-shadow: 0 0 0 3px rgba(19,43,60,0.18);
  z-index: 4;
}
.zz-row.zz-right .zz-card::before { left: -6px; }
.zz-row.zz-left  .zz-card::before { right: -6px; }

.zz-card h4 {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 24px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: #fff;
  margin: 0 0 14px;
}
.zz-card p {
  font-size: 15px;
  line-height: 1.55;
  color: rgba(255,255,255,0.65);
  margin: 0 0 4px;
}
.zz-card p:last-child { margin-bottom: 0; }

@media (max-width: 900px) {
  .zz { max-width: 100%; }
  .zz-path { display: none; }
  .zz-row {
    height: auto;
    padding: 0 0 28px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start !important;
  }
  .zz-bg {
    position: static;
    transform: none;
    width: auto;
    margin-bottom: 12px;
    justify-content: flex-start !important;
    gap: 14px;
  }
  .zz-bn, .zz-bh { font-size: 48px; }
  .zz-bg { background: transparent; padding: 0 !important; }
  .zz-card { width: 100%; }
  .zz-card::before { display: none; }
}