/* ==========================================================================
   /engage — five alternating full-bleed bands.
   ========================================================================== */

.engage-hero {
  padding-block: clamp(var(--s-6), 7vw, var(--s-8)) var(--s-5);
  border-bottom: 1px solid var(--border);
}
.engage-hero__h1 {
  font-size: clamp(2.5rem, 7vw, 5rem);
  letter-spacing: -0.04em;
  line-height: 1.0;
  margin: var(--s-3) 0 var(--s-4);
}
.engage-hero__sub {
  font-family: var(--font-serif);
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  color: var(--ink-secondary);
  max-width: 70ch;
  margin: 0 0 var(--s-5);
}
.engage-hero__nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.engage-hero__nav a {
  color: var(--ink-secondary);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  transition: border-color var(--t-fast) var(--ease-out),
              color var(--t-fast) var(--ease-out);
}
.engage-hero__nav a:hover { color: var(--ink-primary); border-color: var(--ink-primary); }

/* ----- Band base ----- */
/* One symmetric vertical pad per band (no seam-specific overrides — those
   applied unevenly across inverse vs base and first/last neighbors). */
.engage-band {
  padding-block: clamp(var(--s-4), 4vw, var(--s-6));
  scroll-margin-top: calc(var(--header-h));
  position: relative;
  overflow: hidden;
}
.engage-band--base {
  background: var(--surface-base);
  color: var(--ink-primary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.engage-band--inverse {
  background: var(--surface-inverse);
  color: var(--ink-on-inverse);
}
/* Prose links only — do not override .btn / .btn--inverse (dark mode inverse band
   is a light surface; ink-on-inverse matches btn fill and hides label text). */
.engage-band--inverse a:not(.btn) {
  color: var(--ink-on-inverse);
}
.engage-band--inverse a:not(.btn):hover {
  text-decoration-color: var(--ink-on-inverse);
}
.engage-band--inverse::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(255,255,255,0.025) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(255,255,255,0.025) 39px 40px);
}

.engage-band__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
  max-width: 1180px;
}
.engage-band__route {
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  /* --ink-muted adapts: dark-tinted in light mode, light-tinted in dark mode,
     so the route label reads on both .engage-band--base body surfaces. */
  color: var(--ink-muted);
  margin: 0;
}
.engage-band--inverse .engage-band__route { color: var(--ink-on-inverse-muted); }

.engage-band__h {
  font-size: clamp(2.25rem, 6vw, 4.25rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin: 0;
  font-weight: var(--weight-bold);
  text-wrap: balance;
  /* slide-in initial state — JS toggles when in view (amplitude dialed back) */
  transform: translateX(-18px);
  opacity: 0.2;
  transition: transform 600ms var(--ease-out), opacity 600ms var(--ease-out);
}
/* base.css gives h1..h6 a fixed color: var(--ink-primary), which wins
   against the band's inherited color via element-selector specificity.
   Without this override the inverse-band heading renders --ink-primary —
   correct in light mode (near-white text vs dark band) but inverted in
   dark mode (near-white text on the light-slate inverse band). Track the
   inverse token instead. */
.engage-band--inverse .engage-band__h { color: var(--ink-on-inverse); }
.engage-band__h.is-in { transform: none; opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .engage-band__h { transform: none; opacity: 1; transition: none; }
}

.engage-band__lead {
  font-family: var(--font-serif);
  font-size: clamp(1.125rem, 1.8vw, 1.5rem);
  line-height: 1.45;
  color: inherit;
  opacity: 0.85;
  max-width: 56ch;
  margin: 0;
}

.engage-band__body {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  max-width: 70ch;
}
.engage-band__body p {
  font-size: 1.0625rem;
  line-height: 1.65;
  margin: 0;
  color: inherit;
  opacity: 0.95;
}

.engage-band__targets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: none;
}
.engage-band__targets li {
  padding-left: 1.25rem;
  position: relative;
  opacity: 0.8;
}
.engage-band__targets li::before {
  content: "·";
  position: absolute;
  left: 0;
}

/* ----- NDA pathway ----- */
.engage-nda {
  padding-block: clamp(var(--s-5), 5vw, var(--s-8));
  border-top: 1px solid var(--border);
  background: var(--surface-elevated);
  scroll-margin-top: var(--header-h);
}
.engage-nda__h {
  font-family: var(--font-serif);
  font-size: clamp(1.625rem, 3vw, 2.5rem);
  font-weight: var(--weight-regular);
  line-height: 1.3;
  letter-spacing: -0.012em;
  margin: var(--s-3) 0 var(--s-4);
  max-width: 56ch;
}
.engage-nda__body {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--ink-secondary);
  max-width: 70ch;
  margin: 0 0 var(--s-7);
}
.engage-nda__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
  margin-bottom: var(--s-7);
  counter-reset: ndastep;
}
@media (min-width: 768px) { .engage-nda__steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1280px) { .engage-nda__steps { grid-template-columns: repeat(4, 1fr); } }
.engage-nda__steps > div {
  border-top: 2px solid var(--ink-primary);
  padding-top: var(--s-3);
}
.engage-nda__step-no {
  font-size: var(--fs-micro);
  letter-spacing: 0.18em;
  color: var(--ink-muted);
  text-transform: uppercase;
  margin: 0;
}
.engage-nda__step-h {
  font-size: 1.125rem;
  margin: var(--s-2) 0 var(--s-2);
  letter-spacing: -0.012em;
  font-weight: var(--weight-semibold);
}
.engage-nda__steps p {
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--ink-secondary);
  margin: 0;
}

.engage-nda__rt {
  display: inline-block;
  padding: 0.6rem 0.9rem;
  font-size: 0.8125rem;
  border: 1px solid var(--ink-primary);
  border-radius: 999px;
  letter-spacing: 0.04em;
  text-transform: none;
  background: var(--surface-base);
}