.cm3-scan {
  --blue: #4389E2;
  --pale: #E1EDFF;
  --ink: #1A365D;
  --black: #000000;
  --white: #FFFFFF;

  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 24px;
  font-family: 'Poppins', sans-serif;
  color: var(--ink);
  overflow: hidden;
  isolation: isolate;
}

.cm3-scan * {
  box-sizing: border-box;
}

.cm3-grid-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(circle, rgba(67,137,226,0.16) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 20%, #000 40%, transparent 100%);
          mask-image: radial-gradient(ellipse 80% 70% at 50% 20%, #000 40%, transparent 100%);
}

.cm3-axis {
  position: relative;
  display: flex;
  flex-direction: column;
}

.cm3-item {
  position: relative;
  display: grid;
  grid-template-columns: 88px 1fr;
  align-items: start;
  column-gap: 32px;
  padding-bottom: 56px;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.cm3-item.cm3-in {
  opacity: 1;
  transform: translateY(0);
}

.cm3-item:last-child {
  padding-bottom: 0;
}

.cm3-track {
  position: absolute;
  left: 44px;
  top: 88px;
  bottom: -56px;
  width: 2px;
  transform: translateX(-50%);
}

.cm3-item:last-child .cm3-track {
  display: none;
}

.cm3-item[data-seg="1"] .cm3-track { width: 2px;   background: linear-gradient(to bottom, #c7d9f5, #bcd0f2); }
.cm3-item[data-seg="2"] .cm3-track { width: 3px;   background: linear-gradient(to bottom, #bcd0f2, #9dbdec); }
.cm3-item[data-seg="3"] .cm3-track { width: 4px;   background: linear-gradient(to bottom, #9dbdec, #6fa1e4); }
.cm3-item[data-seg="4"] .cm3-track { width: 5.5px; background: linear-gradient(to bottom, #6fa1e4, #4389E2); }
.cm3-item[data-seg="5"] .cm3-track { width: 7px;   background: linear-gradient(to bottom, #4389E2, #2e64ac); }
.cm3-item[data-seg="6"] .cm3-track { width: 8.5px; background: linear-gradient(to bottom, #2e64ac, #1A365D); }

.cm3-node {
  position: relative;
  z-index: 2;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 0 0 4px var(--white), 0 0 0 5.5px var(--ring, var(--pale)), 0 10px 24px -8px rgba(26,54,93,0.35);
}

.cm3-node img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.cm3-item[data-seg="1"] .cm3-node { --ring: #bcd0f2; }
.cm3-item[data-seg="2"] .cm3-node { --ring: #9dbdec; }
.cm3-item[data-seg="3"] .cm3-node { --ring: #6fa1e4; }
.cm3-item[data-seg="4"] .cm3-node { --ring: #4389E2; }
.cm3-item[data-seg="5"] .cm3-node { --ring: #2e64ac; }
.cm3-item[data-seg="6"] .cm3-node { --ring: #1A365D; }

.cm3-card {
  background: var(--pale);
  border-radius: 18px;
  padding: 26px 30px;
  margin-top: 2px;
}

.cm3-phase {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 8px;
}

.cm3-time {
  font-family: 'Poppins', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 10px;
}

.cm3-card p {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  font-size: 15.5px;
  font-weight: 400;
  line-height: 1.65;
  color: #2c3a51;
}

@media (max-width: 640px) {
  .cm3-scan { padding: 24px 16px; }

  .cm3-item {
    grid-template-columns: 56px 1fr;
    column-gap: 16px;
    padding-bottom: 36px;
  }

  .cm3-track { left: 28px; top: 56px; bottom: -36px; }
  .cm3-node { width: 56px; height: 56px; }
  .cm3-card { padding: 16px 18px; border-radius: 14px; }
  .cm3-phase { font-size: 10.5px; }
  .cm3-time { font-size: 18px; }
  .cm3-card p { font-size: 14px; }
}

@media (max-width: 400px) {
  .cm3-item { grid-template-columns: 46px 1fr; column-gap: 12px; }
  .cm3-track { left: 23px; }
  .cm3-node { width: 46px; height: 46px; }
  .cm3-card { padding: 14px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .cm3-item { opacity: 1; transform: none; transition: none; }
}