.hero { padding-block: 56px 40px; }
.status-line { color: var(--muted); font-size: 14px; }

.cta {
  display: inline-block; margin-block: 8px 24px; padding: 12px 20px;
  background: var(--teal); color: var(--ink); font-weight: 600; text-decoration: none;
  border-radius: var(--radius);
}
.cta:focus-visible, .pick-card:focus-visible, .chip:focus-visible, .link:focus-visible {
  outline: 2px solid var(--signal); outline-offset: 2px;
}

.journey { margin-block-start: 8px; border-block-start: 1px solid var(--line); padding-block-start: 24px; }
.panel h2 { margin-block-end: 16px; }
.note { color: var(--muted); font-size: 14px; max-inline-size: 64ch; }
.row { display: flex; gap: 16px; flex-wrap: wrap; margin-block-start: 16px; }

.picker { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.pick-card {
  display: flex; flex-direction: column; gap: 4px; text-align: start; padding: 16px;
  background: var(--surface); color: var(--text); border: 1px solid var(--line);
  border-radius: var(--radius); font: inherit; cursor: pointer;
}
.pick-card span { color: var(--muted); font-size: 13px; }
.pick-card:hover { border-color: var(--teal); }

.chips { display: flex; gap: 10px; flex-wrap: wrap; }
.chip {
  padding: 10px 16px; background: var(--surface-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 999px; font: inherit; cursor: pointer;
}
.chip:hover { border-color: var(--signal); }
.link {
  background: none; border: 0; color: var(--signal); font: inherit; cursor: pointer;
  text-decoration: underline; padding: 12px 6px; min-block-size: 44px;
}

.summary-domain { color: var(--teal); font-weight: 600; margin-block-end: 8px; }
.summary-list { margin: 0 0 16px; padding-inline-start: 20px; }

.stage-root { margin-block-start: 24px; }

/* Isometric stage: tilted plane, tiles snap on from above. Decorative; the summary is the text. */
.iso {
  perspective: 1400px; overflow: hidden; min-block-size: 460px; padding: 24px 24px 56px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
}
.iso-plane {
  position: relative; inline-size: 640px; block-size: 340px; margin-inline: auto;
  transform-style: preserve-3d; transform: rotateX(48deg) rotateZ(-36deg) translateX(60px);
}
.iso-layer { position: absolute; inset-inline-start: 0; transform-style: preserve-3d; }
.iso-layer::before {
  content: attr(data-caption); position: absolute; top: -20px; font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint);
}
.iso-layer[data-layer="engines"] { top: 24px; }
.iso-layer[data-layer="modules"] { top: 140px; }
.iso-layer[data-layer="addons"] { top: 256px; }
.iso-tile {
  position: absolute; inline-size: 120px; block-size: 56px; padding: 8px;
  inset-inline-start: calc(var(--col) * 132px); top: calc(var(--row) * 64px);
  background: var(--surface-3); border: 1px solid var(--teal); border-radius: 8px;
  color: var(--text); font-size: 12px; line-height: 1.25; opacity: 0; transform: translateZ(160px);
  transition: opacity 0.5s ease, transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.iso-tile.is-in { opacity: 1; transform: translateZ(0); }
.iso-tile.is-ahead, .iso-tile.is-slot { border-style: dashed; border-color: var(--amber); }
.iso-layer[data-layer="addons"] .iso-tile { border-color: var(--signal); }
.iso-qual { display: block; color: var(--amber); font-size: 10px; }

.static-stage { padding: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.static-domain { color: var(--teal); }
.static-group h3 { font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }
.static-list { margin: 0 0 16px; padding-inline-start: 20px; }
.static-qual { color: var(--amber); font-size: 13px; }
.is-slot { color: var(--amber); }

.sr-only {
  position: absolute; inline-size: 1px; block-size: 1px; margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

@media (max-width: 700px) {
  .iso-plane { transform: rotateX(48deg) rotateZ(-36deg) scale(0.6); transform-origin: top left; margin-inline: 0; translate: 10px 70px; }
  .iso { min-block-size: 360px; padding-block-end: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  .iso-tile { transition: none; }
}