/* Shared Prompted Lines masthead, primary navigation, and page hero. */
.site-head { border-bottom: 1px solid var(--line); background: var(--surface); }
.masthead {
  max-width: 72rem; min-height: 4.1rem; margin: 0 auto; padding: 0.75rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.brand { display: inline-flex; flex-direction: column; color: var(--ink); text-decoration: none; line-height: 1.1; }
.brand:hover { color: var(--ink); }
.brand-name {
  font-family: "Charter", "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em;
}
.brand-tag {
  margin-top: 0.28rem; color: var(--ink-faint); font-size: 0.66rem;
  font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
}
.head-actions { display: flex; gap: 0.6rem; align-items: center; flex: 0 0 auto; }
.head-actions button {
  font: inherit; font-size: 1rem; line-height: 1; color: var(--accent-ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: 999px; width: 2.25rem; height: 2.25rem; cursor: pointer;
}
.head-actions button:hover { background: var(--surface-2); }

.site-nav { border-top: 1px solid var(--line); background: var(--surface-2); }
.site-nav-inner {
  max-width: 72rem; margin: 0 auto; padding: 0.38rem 1.5rem;
  display: flex; align-items: center; gap: 0.35rem; flex-wrap: nowrap; font-size: 0.84rem;
}
.site-nav a, .nav-menu summary {
  color: var(--ink-soft); text-decoration: none; cursor: pointer;
  padding: 0.38rem 0.72rem; border-radius: 6px; font-weight: 600; white-space: nowrap;
}
.site-nav a:hover, .nav-menu summary:hover { background: var(--surface); color: var(--ink); }
.site-nav a[aria-current="page"], .nav-menu summary.active { background: var(--accent-wash); color: var(--accent-ink); }
.nav-menu { position: relative; }
.nav-menu summary { list-style: none; }
.nav-menu summary::-webkit-details-marker { display: none; }
.nav-menu summary::after { content: "▾"; margin-left: 0.4rem; color: var(--ink-faint); font-size: 0.72rem; }
.nav-menu-items {
  display: none; position: absolute; z-index: 40; top: calc(100% + 0.42rem); left: 0;
  min-width: 13rem; padding: 0.4rem; background: var(--surface); border: 1px solid var(--line);
  border-radius: 8px; box-shadow: 0 8px 24px rgba(28, 43, 47, 0.14);
}
.nav-menu[open] .nav-menu-items { display: flex; flex-direction: column; }
.nav-menu-items a { padding: 0.5rem 0.65rem; font-weight: 500; }
.nav-menu:last-child .nav-menu-items { right: 0; left: auto; }

.page-hero { max-width: 72rem; margin: 0 auto; padding: 2.5rem 1.5rem 1.75rem; }
.home-hero { max-width: 62rem; display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; }
.page-hero .eyebrow {
  text-transform: uppercase; letter-spacing: 0.09em; font-size: 0.72rem;
  font-weight: 600; color: var(--accent); margin: 0 0 0.6rem;
}
.page-hero h1.site-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem); line-height: 1.12; font-weight: 700;
  margin: 0 0 0.65rem; text-wrap: balance; letter-spacing: -0.02em;
}
.page-hero .site-sub { color: var(--ink-soft); max-width: 50rem; margin: 0; font-size: 1.04rem; }
.page-hero + main { padding-top: 0; }

@media (max-width: 48rem) {
  .masthead { min-height: 3.7rem; }
  .brand-tag { display: none; }
  .site-nav-inner { padding-inline: 1rem; gap: 0.1rem; }
  .nav-menu:nth-of-type(n+2) .nav-menu-items { right: 0; left: auto; }
  .page-hero { padding-top: 1.8rem; }
}