.solutions-hero {
  padding: 64px 48px;
  border-bottom: var(--rule);
  background: var(--bg);
  text-align: center;
}

.solutions-hero > div {
  max-width: 960px;
  margin: 0 auto;
}

.solutions-hero h1 {
  margin-bottom: 24px;
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.08;
}

.solutions-hero p {
  max-width: 820px;
  margin: 0 auto;
  color: #555;
  font-size: 16px;
  line-height: 1.65;
}

.solutions-section {
  padding: 64px 48px;
  border-bottom: var(--rule);
}

.solutions-section-muted {
  background: #f3f3ef;
}

.solutions-heading {
  max-width: 820px;
  margin: 0 auto 40px;
  text-align: center;
}

.solutions-heading p {
  margin-top: 14px;
  color: #555;
  font-size: 17px;
}

.value-case-flow {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) 44px minmax(170px, 1.12fr) 44px minmax(170px, 1.12fr) 44px minmax(170px, 1.12fr) 44px minmax(150px, 1fr);
  align-items: stretch;
  max-width: 1380px;
  margin: 0 auto;
}

.value-case-node {
  position: relative;
  z-index: 2;
  min-width: 0;
  padding: 24px 20px;
  border: 3px solid #111;
  background: #fff;
  box-shadow: 6px 6px 0 #111;
}

.value-case-node.is-core {
  background: var(--green);
  color: #fff;
}

.value-case-node h3 {
  margin-bottom: 10px;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.25;
}

.value-case-node.is-core h3,
.value-case-node.is-core p,
.value-case-node.is-core li {
  color: #fff;
}

.value-case-node p,
.value-case-node li {
  font-size: 13px;
  line-height: 1.55;
}

.value-case-node ul {
  margin: 14px 0 0;
  padding-left: 18px;
}

.value-case-arrow {
  position: relative;
  align-self: center;
  height: 3px;
  background: #111;
}

.value-case-arrow::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -1px;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 11px solid #111;
  transform: translateY(-50%);
}

.solution-persona-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 1280px;
  margin: 0 auto;
  border-top: var(--rule);
  border-left: var(--rule);
}

.solution-persona-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 28px 24px;
  border-right: var(--rule);
  border-bottom: var(--rule);
  background: #fff;
  color: #111;
  text-decoration: none;
}

.solution-persona-card:hover {
  background: var(--yellow);
}

.solution-persona-card h3 {
  margin-bottom: 12px;
  color: var(--green);
  font-size: 18px;
  font-weight: 800;
}

.solution-persona-card p {
  flex: 1;
  font-size: 14px;
}

.solution-persona-card span {
  margin-top: 20px;
  font-size: 13px;
  font-weight: 800;
}

.solutions-principles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 1180px;
  margin: 0 auto;
  border-top: var(--rule);
  border-left: var(--rule);
}

.solutions-principles article {
  padding: 30px 26px;
  border-right: var(--rule);
  border-bottom: var(--rule);
  background: #fff;
}

.solutions-principles h3 {
  margin-bottom: 10px;
  color: var(--green);
  font-size: 18px;
}

@media (max-width: 1120px) {
  .value-case-flow {
    grid-template-columns: 1fr;
    max-width: 720px;
  }

  .value-case-arrow {
    width: 3px;
    height: 42px;
    margin: 0 auto;
  }

  .value-case-arrow::after {
    top: auto;
    right: auto;
    bottom: -1px;
    left: 50%;
    border-top: 11px solid #111;
    border-right: 7px solid transparent;
    border-bottom: 0;
    border-left: 7px solid transparent;
    transform: translateX(-50%);
  }

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

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

@media (max-width: 680px) {
  .solutions-hero,
  .solutions-section {
    padding: 40px 24px;
  }

  .solution-persona-grid,
  .solutions-principles {
    grid-template-columns: 1fr;
  }

  .value-case-node {
    padding: 22px 20px;
  }
}