.timeline { list-style: none; padding: 0; position: relative; display: grid; gap: 2rem; --meta-width: 180px; --rail: calc(var(--meta-width) + 1.5rem); }
.timeline::before {
  content: ''; position: absolute; left: var(--rail); top: 0.5rem; bottom: 0.5rem;
  width: 1px; background: var(--border);
}
.timeline-item { display: grid; grid-template-columns: var(--meta-width) minmax(0, 1fr); gap: 3rem; position: relative; }
.timeline-item::before {
  content: ''; position: absolute; left: calc(var(--rail) - 5px); top: 0.55rem;
  width: 11px; height: 11px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent);
}
.timeline-meta { text-align: right; padding-top: 0.15rem; }
.timeline-period { font-family: var(--font-mono); font-size: var(--step--1); color: var(--accent); }
.timeline-location { font-size: 0.8rem; color: var(--text-faint); margin-top: 0.25rem; }
.timeline-card {
  padding: 1.5rem 1.75rem; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); box-shadow: var(--shadow-soft);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.timeline-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow); }
.timeline-role { font-size: var(--step-1); }
.timeline-company { color: var(--accent); font-weight: 600; margin-top: 0.15rem; }
.timeline-bullets { margin-top: 0.85rem; padding-left: 1.1rem; display: grid; gap: 0.45rem; color: var(--text-muted); font-size: 0.95rem; }
.timeline-bullets li::marker { color: var(--accent); }

@media (max-width: 760px) {
  .timeline { --rail: 5px; }
  .timeline-item { grid-template-columns: 1fr; gap: 0.5rem; padding-left: 1.75rem; }
  .timeline-item::before { left: 0; }
  .timeline-meta { text-align: left; display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.25rem 0.75rem; }
  .timeline-location { margin-top: 0; }
}