/* Header Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 31, 33, 0.85);
  border-bottom: 1px solid var(--border-soft);
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  backdrop-filter: blur(0.5rem);
  -webkit-backdrop-filter: blur(0.5rem);
  z-index: -1;
  pointer-events: none;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-sm);
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.logo-mark {
  width: 1.4em;
  height: 1.4em;
  flex-shrink: 0;
  display: block;
}
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.32rem;
  width: 2.6rem;
  height: 2.6rem;
  padding: 0.5rem;
}
.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 0.13rem;
  background: var(--white);
  border-radius: 1rem;
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(0.45rem) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-0.45rem) rotate(-45deg); }

.logo,
.nav-toggle {
  position: relative;
  z-index: 2;
}

.primary-nav {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: var(--space);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
  padding-top: 4.2rem;
}
.primary-nav.is-open { transform: translateX(0); }
.primary-nav ul {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg) var(--space-md);
  gap: var(--space-sm);
}
.primary-nav a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
}
.primary-nav a:hover { color: var(--flame); }
.nav-cta {
  display: inline-block;
  margin-top: var(--space-sm);
  padding: 0.6em 1.2em;
  background: var(--sun);
  color: var(--space);
  border-radius: var(--radius-pill);
  font-size: 1.1rem !important;
}
#contact-nav a:hover { color: var(--white) !important; }

@media (min-width: 56em) {
  .nav-toggle { display: none; }
  .primary-nav {
    position: static;
    inset: auto;
    transform: none;
    background: transparent;
    overflow: visible;
    padding-top: 0;
  }
  .primary-nav ul {
    flex-direction: row;
    align-items: center;
    padding: 0;
  }
  .primary-nav a { font-size: 0.95rem; font-family: var(--font-body); font-weight: 500; }
  .nav-cta {
    margin-top: 0;
    padding: 0.5em 1.1em;
    font-size: 0.95rem !important;
  }
}