.boundary-hero {
  background:
    radial-gradient(circle at 76% 29%, rgba(226, 153, 57, .34), transparent 22rem),
    linear-gradient(122deg, rgba(7, 15, 26, .14), rgba(6, 10, 18, .88)),
    linear-gradient(148deg, #05080d, #132536 58%, #70411e);
}
.boundary-hero h1 { max-width: 1120px; font-size: clamp(2.85rem, 5.9vw, 5.9rem); }
.boundary-hero .subtitle { max-width: 900px; color: #d8e8ef; }
.boundary-hero .deck { color: #f0bd72; }
.boundary-figure { background: radial-gradient(circle at 50% 38%, rgba(221, 151, 53, .24), transparent 27rem), #070b10; }
.boundary-figure img { width: min(610px, 88vw); max-height: 880px; object-fit: contain; }
.original-prose > p { margin: 0 0 1.18rem; }
.evidence-note {
  margin: 2.5rem 0;
  padding: 1.25rem 1.4rem;
  background: #e9eef0;
  border: 1px solid #b8c6cc;
  border-left: 5px solid #4f6f7f;
  font-family: var(--sans);
  font-size: .87rem;
}
.frame-note { background: #f2ecdf; border-color: #d1c29e; border-left-color: #8b713b; }
.emergence-note { background: #e9eee8; border-color: #b8c4b5; border-left-color: #557151; }
.literary-note { background: #ede9f1; border-color: #c2b8ca; border-left-color: #6b5878; }
.analogy-note { background: #f2e6df; border-color: #d1b8aa; border-left-color: #985b3d; }
.evidence-note h3 {
  margin: 0 0 .55rem;
  color: #466675;
  border: 0;
  font: 800 .72rem var(--sans);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.frame-note h3 { color: #7e6533; }
.emergence-note h3 { color: #4f684b; }
.literary-note h3 { color: #63516f; }
.analogy-note h3 { color: #8c5035; }
.evidence-note p:last-child { margin-bottom: 0; }
.proposed-abstract { border-left-color: #b1782d; }
.research h2 small { display: block; margin-top: .45rem; color: #806d52; font: 700 .7rem var(--sans); letter-spacing: .1em; text-transform: uppercase; }
.research ol { padding-left: 1.4rem; font-family: var(--sans); font-size: .84rem; line-height: 1.62; }
.research li { margin-bottom: 1.1rem; }
.book-panel { margin: 4rem 0 0; padding: 1.7rem; color: #fff; background: linear-gradient(120deg, rgba(197, 129, 38, .28), transparent 48%), #07111a; border-top: 5px solid #d49b4b; font-family: var(--sans); }
.book-panel h2 { margin: .35rem 0 .8rem; padding: 0; color: #fff; border: 0; font-size: clamp(1.6rem, 3vw, 2.35rem); }
.book-panel p { color: #d8e1e5; }
.book-panel .eyebrow { color: #efbc73; }
.book-button { display: inline-block; padding: .78rem 1rem; color: #111922; background: #e1ad61; border-radius: .2rem; font-weight: 800; text-decoration: none; }
.book-button:hover,.book-button:focus-visible { background: #f6dfbd; }
@media (max-width: 820px) { .boundary-hero h1 { font-size: 2.45rem; } }