/* Shared chrome: header/nav + footer. One source, stamped into every page. */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-4);
  z-index: 100;
  background: var(--accent);
  color: var(--bg);
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus {
  top: var(--sp-3);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 13, 20, 0.86);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}
.site-header__logo {
  display: block;
  width: 11.5rem;
  height: auto;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--sp-2);
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--fg);
  font-family: var(--font-display-condensed);
  font-size: var(--t-small);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  padding: 0.6rem 0.9rem;
  min-height: 44px;
  cursor: pointer;
}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  position: relative;
}
.nav-toggle__bars::before { position: absolute; top: -6px; }
.nav-toggle__bars::after { position: absolute; top: 6px; }

.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}
.primary-nav a {
  color: var(--fg-dim);
  text-decoration: none;
  font-size: var(--t-small);
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color var(--dur-fast) var(--ease);
  padding: 0.5rem 0.1rem;
}
.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--fg);
}
.primary-nav a:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}
.primary-nav__cta {
  color: var(--bg) !important;
  background: var(--accent);
  padding: 0.6rem 1.1rem !important;
  border-radius: var(--radius-pill);
  font-weight: 700 !important;
}
.primary-nav__cta:hover,
.primary-nav__cta:focus-visible {
  background: var(--accent-hover);
  color: var(--bg) !important;
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .primary-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-raised);
    border-bottom: 1px solid var(--line);
    padding: var(--sp-3) var(--gutter) var(--sp-5);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  }
  .primary-nav[data-open="true"] {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .primary-nav a {
    padding: var(--sp-3) 0;
    border-bottom: 1px solid var(--line);
    font-size: 1rem;
  }
  .primary-nav__cta {
    margin-top: var(--sp-3);
    text-align: center;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-raised);
  border-top: 1px solid var(--line);
}

.site-footer__inner {
  max-width: var(--page-max);
  margin-inline: auto;
  padding: var(--sp-8) var(--gutter) var(--sp-6);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--sp-7);
}

.site-footer__brand img {
  width: 9.5rem;
  height: auto;
  margin-bottom: var(--sp-4);
}
.site-footer__brand p {
  color: var(--fg-dim);
  font-size: var(--t-small);
  line-height: var(--lh-body);
  margin: 0;
}

.site-footer__nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-6);
}
.site-footer__nav-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.site-footer__nav-title {
  font-family: var(--font-display-condensed);
  font-size: var(--t-eyebrow);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: var(--sp-1);
}
.site-footer__nav-group a {
  color: var(--fg-dim);
  text-decoration: none;
  font-size: var(--t-small);
  line-height: 1.5;
}
.site-footer__nav-group a:hover,
.site-footer__nav-group a:focus-visible {
  color: var(--fg);
  text-decoration: underline;
}
.site-footer__nav-group a:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

.site-footer__base {
  border-top: 1px solid var(--line);
  max-width: var(--page-max);
  margin-inline: auto;
  padding: var(--sp-4) var(--gutter) var(--sp-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-6);
  justify-content: space-between;
  font-size: var(--t-small);
  color: var(--fg-dim);
}
.site-footer__base a {
  color: var(--fg-dim);
  text-decoration: none;
}
.site-footer__base a:hover,
.site-footer__base a:focus-visible {
  color: var(--accent);
}

@media (max-width: 640px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
}