.material-detail {
  background: #f3efe6;
  color: #0d2030;
}

.material-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(9rem, 16vw, 13rem) 0 clamp(4rem, 8vw, 7rem);
  background:
    radial-gradient(circle at 78% 18%, rgba(210, 142, 48, .22), transparent 34%),
    linear-gradient(135deg, #071b2a, #0d3c42);
  color: #fff;
}

.material-hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -7rem;
  height: 11rem;
  background: #f3efe6;
  transform: rotate(-2deg);
}

.material-hero .container { position: relative; z-index: 1; }
.material-back { display: inline-block; margin-bottom: 2.5rem; color: #e5a34c; }
.material-hero .eyebrow { color: #e5a34c; letter-spacing: .13em; text-transform: uppercase; }
.material-hero h1 { max-width: 950px; margin: .7rem 0 0; color: #fff; font-size: clamp(2.5rem, 6vw, 5.5rem); line-height: .98; }

.material-main { padding: clamp(5rem, 10vw, 9rem) 0; }
.material-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .72fr); gap: clamp(3rem, 8vw, 8rem); align-items: center; }
.material-lead { max-width: 720px; font-size: clamp(1.2rem, 2.1vw, 1.7rem); line-height: 1.65; }
.material-note { margin-top: 1.5rem; color: #50616a; font-size: .95rem; }
.material-copy .btn { margin-top: 1.5rem; }
.material-cover { margin: 0; }
.material-cover__mask { overflow: hidden; border-radius: 1.5rem; box-shadow: 0 2rem 5rem rgba(7, 27, 42, .18); background: #fff; }
.material-cover img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .7s ease; }
.material-cover:hover img { transform: scale(1.035); }
.material-cover figcaption { margin-top: 1rem; color: #6b706f; }
.material-more { padding: clamp(4rem, 8vw, 7rem) 0; background: #0d3c42; color: #fff; }
.material-more h2 { color: #fff; font-size: clamp(2rem, 4vw, 3.8rem); }
.material-more .eyebrow, .material-more a { color: #e5a34c; }

.archive-intro { max-width: 760px; color: rgba(255,255,255,.82); font-size: 1.25rem; line-height: 1.7; }
.archive-files { padding: clamp(5rem, 10vw, 9rem) 0; }
.archive-file-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.archive-file { display: flex; min-height: 240px; padding: 2rem; flex-direction: column; border-radius: 1.25rem; background: #fff; box-shadow: 0 1rem 3rem rgba(7,27,42,.08); }
.archive-file span { color: #c47a20; font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.archive-file h3 { margin: .8rem 0 2rem; font-size: 1.45rem; }
.archive-file a { margin-top: auto; color: #0038b8; font-weight: 700; }

.library-archive-link { padding: 5rem 0; background: #102f36; color: #fff; }
.library-archive-link h2 { color: #fff; }
.library-archive-link .eyebrow, .library-archive-link a { color: #e5a34c; }
.material-card h3 a { color: inherit; text-decoration: none; }
.material-card h3 a:hover { color: #c47a20; }

@media (max-width: 850px) {
  .material-layout, .archive-file-grid { grid-template-columns: 1fr; }
  .material-cover { order: -1; }
}