/* StackFill — component styles.
 *
 * Imported by base.css. Covers the visual primitives the build templates
 * compose: nav, hero, bands, buttons, footer. Restrained, type-led, with
 * navy + sage as the only accent colors per the design tokens.
 */

@import url('./base.css');

/* ---------- site nav ---------- */
.site-nav {
  border-bottom: 1px solid var(--c-border);
  background: var(--c-page);
  position: sticky; top: 0; z-index: 50;
}
.site-nav__row {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.site-nav__brand {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-family: var(--font-display); font-weight: 600; font-size: var(--fs-18);
  color: var(--c-ink); text-decoration: none;
}
.site-nav__brand:hover { color: var(--c-navy); }
.site-nav__mark { flex-shrink: 0; }
.site-nav__links {
  display: flex; align-items: center; gap: var(--s-5);
  font-size: var(--fs-14); font-weight: 500;
}
.site-nav__links a { color: var(--c-muted); text-decoration: none; }
.site-nav__links a:hover { color: var(--c-ink); }
.site-nav__cta {
  background: var(--c-navy); color: var(--c-page) !important;
  padding: 0.55rem 1rem; border-radius: var(--r-md);
  font-weight: 600;
}
.site-nav__cta:hover { background: var(--c-link-hover); }

@media (max-width: 640px) {
  .site-nav__links a:not(.site-nav__cta) { display: none; }
}

/* ---------- hero ---------- */
.hero {
  padding: clamp(var(--s-8), 8vw, var(--s-12)) 0;
  background: var(--c-page);
}
.eyebrow {
  text-transform: uppercase; letter-spacing: 0.08em;
  font-size: var(--fs-12); font-weight: 600;
}
.hero h1 {
  max-width: 18ch;
  margin-top: var(--s-3);
}
.hero__lead {
  max-width: 60ch;
  font-size: var(--fs-20);
  color: var(--c-muted);
  line-height: var(--lh-snug);
  margin-bottom: var(--s-6);
}
.hero__cta {
  display: flex; flex-wrap: wrap; gap: var(--s-3);
  margin-bottom: var(--s-5);
}
.hero__fineprint { font-size: var(--fs-14); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.85rem 1.4rem;
  border-radius: var(--r-md);
  font-family: inherit; font-weight: 600; font-size: var(--fs-16);
  text-decoration: none; cursor: pointer; border: 1px solid transparent;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.btn--primary {
  background: var(--c-navy); color: var(--c-page);
}
.btn--primary:hover { background: var(--c-link-hover); color: var(--c-page); }
.btn--ghost {
  background: transparent; color: var(--c-ink);
  border-color: var(--c-border-strong);
}
.btn--ghost:hover {
  background: var(--c-surface); color: var(--c-ink);
  border-color: var(--c-ink);
}

/* ---------- bands (page sections) ---------- */
.band {
  padding: clamp(var(--s-8), 8vw, var(--s-10)) 0;
  border-top: 1px solid var(--c-border);
}
.band--soft { background: var(--c-surface); border-top-color: transparent; }
.band__grid {
  display: grid; gap: var(--s-6);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.band__grid h3 { font-size: var(--fs-20); }
.band__grid p { font-size: var(--fs-16); }

.band__split {
  display: grid; gap: var(--s-6);
  grid-template-columns: 1fr;
}
@media (min-width: 800px) {
  .band__split { grid-template-columns: 1.4fr 1fr; gap: var(--s-8); }
}
.band__aside {
  background: var(--c-page);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--s-5);
}
.band__aside h4 { margin-bottom: var(--s-3); }

.checklist {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: var(--s-3);
}
.checklist li {
  position: relative; padding-left: 1.5rem;
  color: var(--c-muted); font-size: var(--fs-14);
}
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 0.45em;
  width: 8px; height: 8px; border-radius: 2px;
  background: var(--c-sage);
}

/* ---------- footer ---------- */
.site-footer {
  background: var(--c-ink); color: rgba(255,255,255,0.85);
  padding: var(--s-10) 0 var(--s-6);
  margin-top: var(--s-10);
}
.site-footer a { color: rgba(255,255,255,0.85); text-decoration: none; }
.site-footer a:hover { color: var(--c-sage); }
.site-footer h4 {
  color: var(--c-page);
  font-size: var(--fs-14);
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: var(--s-3);
}
.site-footer__brand { margin-bottom: var(--s-6); max-width: 56ch; }
.site-footer__brand .muted { color: rgba(255,255,255,0.6); }
.site-footer__cols {
  display: grid; gap: var(--s-5);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  font-size: var(--fs-14);
}
.site-footer__cols div { display: flex; flex-direction: column; gap: var(--s-2); }
.site-footer__legal {
  margin-top: var(--s-8); padding-top: var(--s-5);
  border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.55);
  font-size: var(--fs-12);
}