.bn-header{position:sticky;top:0;z-index:40;background:linear-gradient(to bottom,rgba(2,6,23,0.96),rgba(2,6,23,0.94));backdrop-filter:blur(20px);border-bottom:1px solid rgba(30,41,59,0.95)}.bn-header-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:1.5rem}.bn-brand-wrap{display:flex;align-items:center;min-width:0}.bn-brand{display:inline-flex;align-items:center;gap:0.9rem}.bn-brand-mark{width:38px;height:38px;border-radius:999px;border:1px solid rgba(212,175,55,0.7);display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 30% 0,#1f2937 0,#020617 65%);box-shadow:0 0 0 1px rgba(15,23,42,1),0 14px 30px rgba(0,0,0,0.9)}.bn-brand-initial{font-family:var(--font-serif);font-size:1.2rem;color:var(--color-primary);letter-spacing:0.18em;text-transform:uppercase}.bn-brand-text{display:flex;flex-direction:column;gap:0.1rem}.bn-brand-name{font-family:var(--font-serif);font-size:1.05rem;letter-spacing:0.22em;text-transform:uppercase;color:var(--color-text)}.bn-brand-tagline{font-size:0.7rem;letter-spacing:0.18em;text-transform:uppercase;color:var(--color-muted)}.bn-nav{display:flex;align-items:center;margin-left:auto}.bn-nav-list{display:flex;align-items:center;gap:2rem;font-size:0.78rem;letter-spacing:0.2em;text-transform:uppercase}.bn-nav-link{position:relative;color:var(--color-text-soft);padding-block:0.5rem}.bn-nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,#d4af37,transparent);transform:scaleX(0);transform-origin:center;transition:transform var(--transition-base)}.bn-nav-link:hover,.bn-nav-link:focus-visible{color:var(--color-primary)}.bn-nav-link:hover::after,.bn-nav-link:focus-visible::after{transform:scaleX(1)}.bn-nav-cta-wrap{margin-left:0.5rem}.bn-nav-cta{padding:0.4rem 1.4rem;border-radius:999px;border:1px solid rgba(212,175,55,0.8);background:radial-gradient(circle at 0 0,rgba(212,175,55,0.16),transparent 60%),linear-gradient(135deg,#d4af37,#9a3412);color:#020617;font-weight:600;box-shadow:0 10px 28px rgba(0,0,0,0.8);transition:transform var(--transition-fast),box-shadow var(--transition-fast),filter var(--transition-fast)}.bn-nav-cta:hover,.bn-nav-cta:focus-visible{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 34px rgba(0,0,0,0.9)}.bn-nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:999px;border:1px solid var(--color-border-strong);background:radial-gradient(circle at 30% 0,#020617 0,#020617 60%);box-shadow:0 10px 25px rgba(0,0,0,0.8);padding:0.55rem 0.75rem;gap:0.25rem}.bn-nav-toggle-bar{width:100%;height:2px;border-radius:999px;background:var(--color-text);transition:transform var(--transition-base),opacity var(--transition-fast),background var(--transition-base)}.bn-nav-toggle:focus-visible{box-shadow:var(--shadow-focus)}.bn-nav-toggle[aria-expanded="true"] .bn-nav-toggle-bar:first-child{transform:translateY(4px) rotate(42deg);background:var(--color-primary)}.bn-nav-toggle[aria-expanded="true"] .bn-nav-toggle-bar:last-child{transform:translateY(-4px) rotate(-42deg);background:var(--color-primary)}@media (max-width:960px){.bn-nav-list{gap:1.4rem}}@media (max-width:768px){.bn-nav-toggle{display:flex}.bn-nav{position:fixed;inset-inline:0;top:64px;z-index:35;pointer-events:none}.bn-nav-list{position:relative;margin:0.75rem auto 0 auto;max-width:92%;flex-direction:column;align-items:flex-start;gap:0.4rem;padding:1rem 1rem 1.1rem 1rem;border-radius:var(--radius-xl);background:radial-gradient(circle at 0 0,#020617 0,#020617 60%);border:1px solid var(--color-border-subtle);box-shadow:0 22px 60px rgba(0,0,0,0.95);transform-origin:top center;transform:scaleY(0.9) translateY(-10px);opacity:0;transition:opacity var(--transition-base),transform var(--transition-base);pointer-events:auto}.bn-nav-open .bn-nav-list{opacity:1;transform:scaleY(1) translateY(0)}.bn-nav-item{width:100%}.bn-nav-link{display:block;width:100%;padding:0.65rem 0.1rem}.bn-nav-link::after{display:none}.bn-nav-cta-wrap{margin-left:0;margin-top:0.4rem;width:100%}.bn-nav-cta{display:flex;justify-content:center;width:100%;padding-block:0.65rem}}@media (max-width:480px){.bn-brand-name{font-size:0.98rem;letter-spacing:0.18em}.bn-brand-tagline{display:none}}

/* --- visual fix pass 2026-08-06 --- */
@media (max-width: 768px) {
  .bn-nav {
    background-color: #020617;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    max-height: 0;
    overflow: hidden;
  }
  .bn-header.bn-nav-open .bn-nav {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .bn-header.bn-nav-open .bn-nav-list {
    background-color: #020617;
    background-image: none;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }
  .bn-nav-link {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
}
@media (min-width: 769px) {
  .bn-nav.nav-menu {
    display: flex;
    visibility: visible;
    opacity: 1;
    position: static;
    max-height: none;
    overflow: visible;
    pointer-events: auto;
    background: transparent;
  }
  .bn-nav-toggle {
    display: none;
  }
}

.bn-brand-tagline {
  font-size: 12px;
}