/* ============================================================
   page-banners.css — variants of the .page-banner primitive.

   The base .page-banner lives in main.css. Adding any visual variant
   for a project class (research-paper landing, hero, etc.) should go
   here so consumers don't have to override layout primitives.

   Conventions:
     - Always use theme tokens (var(--herman-color-brass), var(--text-3))
     - Use a parent-class modifier only (no extra class on .page-banner)
     - Keep responsive @media at the bottom of each variant

   Add a new variant:
     .page-banner--<name> { ... }
   consumer opts in by adding the modifier class.
   ============================================================ */

/* ---------- Research / Paper landing --------------------------- */
.page-banner--research {
  padding: 56px 0 56px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
  background:
    radial-gradient(ellipse 60% 80% at 80% 0%,
      rgba(200, 165, 95, .06),
      transparent 60%),
    radial-gradient(ellipse 50% 60% at 0% 50%,
      color-mix(in srgb, var(--herman-color-danger) 4%, transparent),
      transparent 70%);
}
.page-banner--research .page-banner-inner {
  max-width: 1100px;
}
.page-banner--research .page-banner-eyebrow {
  color: var(--herman-color-brass);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.page-banner--research .page-banner-title {
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin-top: 16px;
  margin-bottom: 18px;
}
.page-banner--research .page-banner-title .accent {
  color: var(--herman-color-brass);
  font-style: italic;
}
.page-banner--research .page-banner-title .warm {
  color: var(--herman-color-warning);
}
.page-banner--research .page-banner-title .red {
  color: var(--herman-color-danger);
}
.page-banner--research .page-banner-lede {
  font-size: 18px;
  line-height: 1.6;
  max-width: 640px;
}
.page-banner--research .page-banner-cta {
  margin-top: 28px;
}

/* ---------- Research hero with image --------------------------- */
.page-banner--hero-image {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
  padding: 72px 0 96px;
}
.page-banner--hero-image .page-banner-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1240px;
}
.page-banner--hero-image .page-banner-figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: #000;
}
.page-banner--hero-image .page-banner-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (max-width: 880px) {
  .page-banner--hero-image { padding: 40px 0; }
  .page-banner--hero-image .page-banner-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .page-banner--hero-image .page-banner-figure { max-height: 320px; }
}

/* ---------- Centered compact (404, error pages) ----------------- */
.page-banner--centered {
  text-align: center;
  padding: 96px 0;
}
.page-banner--centered .page-banner-eyebrow { color: var(--text-3); }
.page-banner--centered .page-banner-title { max-width: 720px; margin: 0 auto 16px; }

/* ---------- universal responsive nudges ----------------------- */
@media (max-width: 640px) {
  .page-banner--research { padding: 32px 0 28px; }
  .page-banner--research .page-banner-title { font-size: 36px; }
  .page-banner--research .page-banner-lede { font-size: 16px; }
}