/* =========================================================================
   Layout — site chrome (top bar, mobile nav drawer, footer, hero, page shell).
   ========================================================================= */

/* ---------- Top bar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-divider);
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  height: var(--topbar-h);
}

/* ---- Brand (real VAC lockup) ----
   .brand wraps a logo lockup or logomark. On the desktop top bar we use the
   horizontal logomark with the wordmark to its right (a hand-built
   alternative to the not-yet-delivered "horizontal lockup" variant —
   see brand-asset-reference §1, gap #2). */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  color: var(--color-text);
  text-decoration: none;
  font-family: var(--font-serif);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
}
.brand:hover { text-decoration: none; }

/* The logomark image. Aspect ratio ~2.12:1, sized for top-bar use. */
.brand__mark {
  display: inline-block;
  width: 56px;
  height: 26px;
  background-image: url('../assets/logos/Value-A-Company-Logomark-Color.svg');
  background-repeat: no-repeat;
  background-position: left center;
  background-size: contain;
  flex-shrink: 0;
}
.brand--white .brand__mark {
  background-image: url('../assets/logos/Value-A-Company-Logomark-White.svg');
}
.brand--white { color: var(--color-text-inverse); }

.brand__wordmark {
  font-size: var(--fs-18);
  color: inherit;
}
.brand__suffix {
  color: var(--color-text-subtle);
  font-family: var(--font-sans);
  font-weight: var(--fw-regular);
  font-size: var(--fs-14);
  letter-spacing: 0;
}

/* Full vertical lockup, for hero / brand moments / footer */
.brand-lockup {
  display: inline-block;
  width: 200px;
  height: auto;
  aspect-ratio: 1500 / 693.84;
  background-image: url('../assets/logos/Value-A-Company-Logo-Lockup-Color.svg');
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}
.brand-lockup--white {
  background-image: url('../assets/logos/Value-A-Company-Logo-Lockup-White.svg');
}
.brand-lockup--color-white {
  background-image: url('../assets/logos/Value-A-Company-Logo-Lockup-Color-White.svg');
}

/* ---- Navigation ---- */

.nav { display: flex; gap: var(--sp-1); align-items: center; }
.nav a {
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--fs-14);
  font-weight: var(--fw-medium);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-family: var(--font-sans);
}
.nav a:hover { background: var(--color-bg-muted); color: var(--color-text); text-decoration: none; }
.nav a.is-active { color: var(--color-text); }
.nav a.is-active::after {
  content: ""; display: block; height: 2px; margin-top: 4px;
  background: var(--color-accent); border-radius: 2px;
}
.nav__cta { margin-left: var(--sp-3); }

/* ---- Mobile nav toggle + drawer ---- */

.nav-toggle {
  display: none;
  align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  background: transparent;
}
.nav-toggle:hover { background: var(--color-bg-muted); }
.nav-toggle svg { width: 24px; height: 24px; }

.nav-drawer {
  position: fixed;
  inset: var(--topbar-h) 0 0 0;
  background: var(--color-bg);
  z-index: var(--z-nav-drawer);
  padding: var(--sp-5) var(--sp-5) var(--sp-7);
  display: none;
  flex-direction: column;
  gap: var(--sp-1);
  border-top: 1px solid var(--color-divider);
  overflow-y: auto;
}
.nav-drawer a {
  display: block;
  padding: var(--sp-4) var(--sp-3);
  font-size: var(--fs-18);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-divider);
  font-family: var(--font-sans);
}
.nav-drawer a:last-child { border-bottom: 0; }
.nav-drawer a:hover { color: var(--color-primary); text-decoration: none; }
.nav-drawer.is-open { display: flex; }

@media (max-width: 820px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* ---------- Hero ---------- */

.hero {
  padding-block: var(--sp-9) var(--sp-7);
  background:
    radial-gradient(120% 80% at 80% 0%, rgba(16, 116, 111, 0.06), transparent 60%),
    linear-gradient(180deg, var(--color-bg-subtle), var(--color-bg));
  position: relative;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: var(--sp-8);
  align-items: start;
}
.hero__copy { padding-top: var(--sp-3); }
.hero__copy p.lead { max-width: 50ch; }
.hero__bullets {
  margin-top: var(--sp-5);
  display: grid;
  gap: var(--sp-3);
  font-size: var(--fs-14);
  color: var(--color-text-muted);
}
.hero__bullets li { padding-left: var(--sp-5); position: relative; list-style: none; font-family: var(--font-sans); }
.hero__bullets li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 8px; height: 8px;
  background: var(--gradient-brand);
  border-radius: 50%;
}

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: var(--sp-6); }
  .hero { padding-block: var(--sp-7); }
}

/* ---------- Page header (non-home) ---------- */

.page-header {
  padding-block: var(--sp-8) var(--sp-6);
  border-bottom: 1px solid var(--color-divider);
  background: linear-gradient(180deg, var(--color-bg-subtle), var(--color-bg));
}
.page-header h1 { margin-bottom: var(--sp-3); }
.page-header p.lead { max-width: 60ch; }

@media (max-width: 600px) {
  .page-header { padding-block: var(--sp-6) var(--sp-5); }
}

/* ---------- Footer ----------
   Dark, deep-navy footer with the white-lockup variant — uses the brand
   reverse pairing that's explicitly approved for dark backgrounds. */

.footer {
  background: #0b1224;             /* darker than --color-primary for contrast */
  color: rgba(226, 232, 240, 0.86);
  padding-block: var(--sp-8) var(--sp-5);
  font-size: var(--fs-14);
  font-family: var(--font-sans);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--sp-6);
  margin-bottom: var(--sp-7);
}
.footer__brand { max-width: 38ch; }
.footer__brand p { color: rgba(226, 232, 240, 0.66); margin-top: var(--sp-4); }
.footer__heading {
  font-family: var(--font-sans);
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: rgba(226, 232, 240, 0.55);
  margin-bottom: var(--sp-3);
  font-weight: var(--fw-semibold);
}
.footer__list { list-style: none; padding: 0; margin: 0; }
.footer__list li + li { margin-top: var(--sp-2); }
.footer__list a { color: rgba(226, 232, 240, 0.86); }
.footer__list a:hover { color: var(--color-text-inverse); text-decoration: none; }
.footer__legal {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--sp-5);
  display: flex; flex-wrap: wrap; gap: var(--sp-4);
  justify-content: space-between;
  font-size: var(--fs-12);
  color: rgba(226, 232, 240, 0.55);
}

@media (max-width: 800px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .footer__grid { grid-template-columns: 1fr; gap: var(--sp-5); }
}

/* ---------- Mockup banner ---------- */

.mockup-banner {
  background: var(--gradient-brand-h);
  color: #ffffff;
  font-size: var(--fs-12);
  padding: var(--sp-2) var(--sp-5);
  text-align: center;
  letter-spacing: var(--tracking-wide);
  font-family: var(--font-sans);
}
.mockup-banner a { color: #ffffff; text-decoration: underline; text-underline-offset: 2px; }