body {
  min-height: 100vh;
}

.solution-index,
#solution-root {
  display: grid;
  gap: 20px;
  padding: clamp(18px, 4vw, 56px);
}

.back-link {
  display: inline-flex;
  width: fit-content;
  min-height: 38px;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--green);
  background: #171d22;
}

.solution-shell {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: 18px;
  align-items: stretch;
}

.solution-copy,
.solution-visual,
.solution-grid article,
.solution-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.solution-copy {
  display: grid;
  align-content: center;
  gap: 16px;
  padding: clamp(22px, 4vw, 40px);
}

.solution-copy h1,
.solution-list h1 {
  margin: 0;
  font-size: clamp(34px, 6vw, 72px);
  letter-spacing: 0;
}

.lead {
  margin: 0;
  color: #c7ced8;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.45;
}

.solution-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.solution-actions a,
.solution-list nav a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 0 13px;
  border: 1px solid #46515f;
  border-radius: 8px;
  color: var(--accent);
}

.solution-visual {
  padding: 16px;
  background: #10151b;
}

.solution-visual svg {
  width: 100%;
  height: 100%;
  min-height: 360px;
}

.solution-visual .title,
.solution-visual .lane-label,
.solution-visual .caption {
  fill: #dbe2eb;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.solution-visual .title {
  font-size: 21px;
  font-weight: 700;
}

.solution-visual .lane-label {
  font-size: 16px;
}

.solution-visual .caption {
  fill: #9aa6b5;
  font-size: 15px;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.solution-grid article {
  padding: 18px;
}

.solution-grid h2 {
  margin: 0 0 12px;
  font-size: 18px;
}

.solution-grid ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: #c7ced8;
}

.solution-grid p {
  margin: 0;
  color: #c7ced8;
  line-height: 1.45;
}

.solution-list {
  display: grid;
  gap: 20px;
  padding: clamp(24px, 4vw, 44px);
}

.solution-list nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 860px) {
  .solution-shell,
  .solution-grid {
    grid-template-columns: 1fr;
  }
}