.roadmap-trigger {
  flex: 0 0 auto;
  min-width: 112px;
  min-height: 44px;
  padding: 10px 20px;
  border: 1px solid var(--edge);
  border-radius: 4px;
  background: var(--surface);
  color: var(--ink);
  font: 500 14px/1.5 var(--font);
  cursor: pointer;
  transition: border-color 140ms ease, background 140ms ease;
}
.roadmap-trigger:hover { border-color: var(--accent); background: var(--accent-soft); }
.roadmap-trigger:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.roadmap-dialog {
  width: min(720px, calc(100% - 32px));
  padding: 0;
  overscroll-behavior: contain;
}
.roadmap-header {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 28px 32px 22px;
  border-bottom: 1px solid var(--edge);
  background: var(--surface);
}
.roadmap-heading { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.roadmap-heading .panel-title { margin: 0; }
.roadmap-heading .dialog-close { flex-shrink: 0; margin: 0 -8px 0 0; }
.roadmap-header .panel-intro { margin: 12px 0 0; }
.roadmap-body { padding: 0 32px 28px; }
.roadmap-list { margin: 0; padding: 0; list-style: none; }
.roadmap-milestone {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 24px;
  padding: 22px 0;
}
.roadmap-milestone + .roadmap-milestone { border-top: 1px solid var(--edge); }
.roadmap-period { display: grid; align-content: start; gap: 3px; margin: 1px 0 0; font-family: var(--mono); }
.roadmap-period span { color: var(--muted); font-size: 11px; line-height: 1.5; }
.roadmap-period strong { color: var(--accent); font-size: 20px; line-height: 1.3; font-weight: 400; }
.roadmap-milestone h3 { margin: 0 0 7px; font-size: 17px; line-height: 1.35; font-weight: 500; letter-spacing: -0.015em; }
.roadmap-milestone > div > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.roadmap-note { margin: 0; padding-top: 20px; border-top: 1px solid var(--edge); color: var(--muted); font-size: 12px; line-height: 1.6; }
@media (max-width: 639px) {
  .roadmap-header { padding: 22px 24px 20px; }
  .roadmap-body { padding: 0 24px 24px; }
  .roadmap-milestone { grid-template-columns: 48px minmax(0, 1fr); gap: 16px; padding-block: 20px; }
  .roadmap-milestone h3 { font-size: 16px; }
}
@media (max-width: 359px) {
  .roadmap-trigger { width: 100%; }
  .roadmap-header { padding-inline: 20px; }
  .roadmap-body { padding-inline: 20px; }
  .roadmap-milestone { grid-template-columns: 1fr; gap: 9px; }
  .roadmap-period { display: flex; align-items: baseline; gap: 8px; }
  .roadmap-period strong { font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  .roadmap-trigger { transition: none; }
}