.cl { --rail: 68px; --node: 40px; --goal: 50px; --route: rgba(92,106,128,.78); max-width: 880px; padding-top: clamp(46px, 6vw, 84px); padding-bottom: clamp(72px, 9vw, 120px); }

.cl-head h1 { font-size: clamp(2.3rem, 4.6vw, 3.4rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.05; }
.cl-lede { margin-top: 16px; font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: var(--ink-soft); line-height: 1.55; max-width: 56ch; }
.cl-meta { margin-top: 14px; font-size: 13px; color: var(--ink-faint); }
.cl-meta b { color: var(--ink); font-weight: 600; }
.cl-meta span { white-space: nowrap; }

.route { margin: clamp(40px, 5vw, 60px) 0 0; padding: 0; list-style: none; }

.rel { position: relative; padding: 0 0 clamp(46px, 5vw, 66px) var(--rail); scroll-margin-top: 100px; }
.rel::before {
  content: "";
  position: absolute;
  left: calc(var(--node) / 2 - 1px);
  top: calc(var(--node) + 8px);
  bottom: 8px;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--route) 0 7px, transparent 7px 14px);
  animation: cl-travel 3s cubic-bezier(.16,1,.3,1) both;
}
.rel-start { padding-bottom: 0; }
.rel-start::before { display: none; }

.node {
  position: absolute;
  left: 0;
  top: 0;
  width: var(--node);
  height: var(--node);
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--panel);
  border: 2px solid var(--route);
  color: var(--ink-faint);
}
.node svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.rel-start .node circle { fill: currentColor; stroke: none; }

.rel-goal { --pad: 28px; }
.rel-goal::before { top: calc(var(--pad) + 20px + var(--goal) / 2 + 8px); background-image: repeating-linear-gradient(to bottom, var(--accent) 0 7px, transparent 7px 14px); }
.rel-goal .node {
  left: calc((var(--node) - var(--goal)) / 2);
  top: calc(var(--pad) + 20px - var(--goal) / 2);
  width: var(--goal);
  height: var(--goal);
  border: 0;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 7px var(--accent-wash), 0 8px 18px rgba(31,106,230,.28);
  animation: cl-arrive 900ms cubic-bezier(.16,1,.3,1) 1.4s backwards;
}
.rel-goal .node svg { width: 22px; height: 22px; stroke-width: 2.1; }
.rel-goal .rel-body { background: var(--panel); border-radius: var(--r); box-shadow: var(--sh-1); padding: var(--pad) 30px 22px; }

.rel-head { display: flex; flex-wrap: wrap; align-items: center; column-gap: 14px; row-gap: 6px; min-height: 40px; }
.rel-v { font-size: 1.45rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; color: var(--ink); }
.rel-goal .rel-v { font-size: 2rem; letter-spacing: -0.03em; }
.rel-date { font-size: 13px; color: var(--ink-faint); }

.rel-tag, .rel-you {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 6px;
  padding: 3px 9px;
  white-space: nowrap;
}
.rel-tag { color: var(--accent-deep); background: var(--accent-wash); border: 1px solid var(--accent-line); }
.rel-tag.quiet { color: var(--ink-soft); background: var(--tint); border-color: var(--line-strong); }
.rel-you { display: none; color: #fff; background: var(--accent); border: 1px solid var(--accent); }
.rel:target .rel-you { display: inline-flex; }
.rel:target:not(.rel-goal) .node { border-color: var(--accent); color: var(--accent); box-shadow: 0 0 0 6px var(--accent-wash); }

.grp { margin-top: 22px; }
.grp-h { display: flex; align-items: center; gap: 9px; font-size: 11.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); }
.grp-h::before { content: ""; width: 8px; height: 8px; border-radius: 50%; box-sizing: border-box; }
.grp-h[data-kind="new"]::before { background: var(--accent); }
.grp-h[data-kind="improved"]::before { border: 2px solid var(--accent); }
.grp-h[data-kind="fixed"]::before { background: var(--route); }

.grp-list { margin-top: 6px; }
.rel-start .grp-list { margin-top: 12px; }
.grp-list li { padding: 11px 0; font-size: 1rem; line-height: 1.55; color: var(--ink-soft); max-width: 68ch; }
.grp-list li + li { border-top: 1px solid var(--line); }
.rel-goal .grp-list li { color: var(--ink); }

.pro {
  display: inline-block;
  margin-left: 2px;
  padding: 0 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 18px;
  text-transform: uppercase;
  vertical-align: 1px;
  white-space: nowrap;
  color: var(--ink-soft);
  background: var(--tint);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
}

.rel-note { margin-top: 10px; font-size: 14px; color: var(--ink-faint); }

@keyframes cl-travel { from { background-position: 0 140px; } to { background-position: 0 0; } }
@keyframes cl-arrive {
  from { box-shadow: 0 0 0 0 var(--accent-wash), 0 4px 10px rgba(31,106,230,.2); transform: scale(.92); }
  to { box-shadow: 0 0 0 7px var(--accent-wash), 0 8px 18px rgba(31,106,230,.28); transform: none; }
}

@media (max-width: 620px) {
  .cl { --rail: 46px; --node: 32px; --goal: 38px; }
  .node svg { width: 16px; height: 16px; }
  .rel-goal { --pad: 20px; }
  .rel-goal .node svg { width: 18px; height: 18px; }
  .rel-goal .rel-body { padding: var(--pad) 18px 14px; }
  .rel-head { min-height: 32px; column-gap: 10px; }
  .rel-goal .rel-head { min-height: 40px; }
  .rel-v { font-size: 1.25rem; }
  .rel-goal .rel-v { font-size: 1.6rem; }
  .grp-list li { font-size: 0.97rem; }
}

@media (prefers-reduced-motion: reduce) {
  .rel::before, .rel-goal .node { animation: none; }
}