/* Home-only visuals that signal “research” without changing core layout elsewhere */

/* --- Serif accent for research labels (title stays sans in band) */
body.dm-page-home {
  --dm-research-serif: "Source Serif 4", ui-serif, Georgia, "Times New Roman", serif;
}

/* --- Research dark band: subtle “graph paper” + journal masthead */
body.dm-page-home .dm-research-roots--visual {
  position: relative;
}

body.dm-page-home .dm-research-roots--visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    rgba(255, 255, 255, 0.06) 1px,
    transparent 1px
  );
  background-size: 16px 16px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0.1) 45%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

body.dm-page-home .dm-research-roots--visual .container {
  position: relative;
  z-index: 1;
}

body.dm-page-home .dm-research-roots--visual .dm-research-roots__kicker {
  font-family: var(--dm-research-serif);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.65rem;
  font-weight: 700;
  color: #bfdbfe;
  border-bottom: 1px solid rgba(147, 197, 253, 0.25);
  display: inline-block;
  padding-bottom: 0.35rem;
  margin-bottom: 0.65rem;
}

body.dm-page-home .dm-research-roots--visual .dm-research-roots__title {
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Paper-style cards: top “binding” + figure number */
body.dm-page-home .dm-research-roots__card--paper {
  position: relative;
  border-top: 2px double rgba(147, 197, 253, 0.35);
  padding-top: 1.1rem;
}

body.dm-page-home .dm-research-roots__card--paper::before {
  content: attr(data-figure);
  position: absolute;
  top: 0.4rem;
  right: 0.65rem;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #64748b;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  opacity: 0.85;
}

/* --- Catalog: thin left “reading list” mark on home course cards */
body.dm-page-home .dm-page-home--catalog-mark .dm-course-card-popular {
  position: relative;
  border-left: 3px solid rgba(47, 87, 239, 0.15);
  border-radius: 0.75rem;
  margin-left: 0.15rem;
}

body.dm-page-home .dm-page-home--catalog-mark .dm-course-card-popular:hover {
  border-left-color: rgba(47, 87, 239, 0.45);
}