.configurable-line-section {
  overflow: hidden;
}

.configurable-line-shell {
  display: grid;
  gap: clamp(24px, 3vw, 32px);
}

.configurable-line-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: end;
}

.configurable-line-heading h2 {
  max-width: 680px;
  margin: 10px 0 0;
}

.configurable-line-heading > p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.15vw, 1.12rem);
  line-height: 1.75;
}

.configuration-map {
  display: grid;
  grid-template-columns: minmax(230px, 0.7fr) minmax(0, 2fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.configuration-map-inline {
  margin-top: 32px;
}

.configuration-input {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 256px;
  padding: clamp(24px, 3vw, 48px);
  color: #fff;
  background: #08382b;
}

.configuration-input .configuration-label {
  margin-bottom: 16px;
  color: #79e0bc;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.configuration-input h3 {
  margin: 0 0 16px;
  color: #fff;
  font-size: clamp(1.45rem, 2.2vw, 2.05rem);
  line-height: 1.12;
}

.configuration-input p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.65;
}

.configuration-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.configuration-rail li {
  position: relative;
  min-width: 0;
  padding: clamp(24px, 3vw, 32px) clamp(16px, 2.2vw, 24px);
  border-left: 1px solid var(--line);
}

.configuration-rail li::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--green);
  content: "";
  opacity: 0.68;
}

.configuration-step {
  display: block;
  margin-bottom: 24px;
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.configuration-rail h3 {
  margin: 0 0 12px;
  font-size: clamp(1.08rem, 1.35vw, 1.28rem);
  line-height: 1.25;
}

.configuration-rail p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.6;
}

.configuration-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.configuration-summary p {
  margin: 0;
  padding: 16px 0;
  color: var(--muted);
  line-height: 1.6;
}

.configuration-summary p + p {
  padding-left: clamp(24px, 3vw, 48px);
  border-left: 1px solid var(--line);
}

.configuration-summary p:first-child {
  padding-right: clamp(24px, 3vw, 48px);
}

.configuration-summary strong {
  color: var(--ink);
}

@media (max-width: 1040px) {
  .configuration-map {
    grid-template-columns: 1fr;
  }

  .configuration-input {
    min-height: auto;
  }

  .configuration-rail li:first-child {
    border-left: 0;
  }
}

@media (max-width: 760px) {
  .configurable-line-heading,
  .configuration-summary {
    grid-template-columns: 1fr;
  }

  .configuration-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .configuration-rail li:nth-child(3) {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .configuration-rail li:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .configuration-summary p + p {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .configuration-summary p:first-child {
    padding-right: 0;
  }
}

@media (max-width: 520px) {
  .configuration-rail {
    grid-template-columns: 1fr;
  }

  .configuration-rail li {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .configuration-rail li:first-child {
    border-top: 0;
  }

  .configuration-step {
    margin-bottom: 20px;
  }
}