.bb-header{position:sticky;top:0;z-index:40;background:radial-gradient(circle at top,#181b22 0,#050608 55%,#020204 100%);backdrop-filter:blur(18px);border-bottom:1px solid rgba(199,165,106,0.18);box-shadow:0 18px 45px rgba(0,0,0,0.65)}.bb-header__inner{display:flex;align-items:center;justify-content:space-between;min-height:4.25rem;padding-top:var(--space-3);padding-bottom:var(--space-3);gap:var(--space-4)}.bb-header__brand{display:inline-flex;align-items:center;gap:var(--space-3);text-decoration:none;color:var(--gray-50)}.bb-header__logo-mark{display:inline-flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border-radius:999px;border:1px solid rgba(199,165,106,0.6);background:radial-gradient(circle at 30% 0,rgba(199,165,106,0.3),rgba(5,6,8,0.95));font-family:var(--font-serif);font-size:var(--text-base);letter-spacing:0.24em;text-transform:uppercase;color:var(--gray-50);box-shadow:0 0 0 1px rgba(0,0,0,0.7),0 10px 30px rgba(0,0,0,0.7)}.bb-header__brand-text{display:flex;flex-direction:column;gap:0.1rem}.bb-header__brand-name{font-family:var(--font-serif);font-size:1.15rem;letter-spacing:0.3em;text-transform:uppercase;color:var(--gray-50)}.bb-header__brand-tagline{font-size:0.7rem;letter-spacing:0.2em;text-transform:uppercase;color:var(--color-text-muted)}.bb-header__nav{display:flex;align-items:center}.bb-header__nav-list{display:flex;align-items:center;gap:var(--space-4);font-size:var(--text-sm);letter-spacing:0.16em;text-transform:uppercase}.bb-header__nav-link{position:relative;padding-block:0.2rem;color:var(--gray-100)}.bb-header__nav-link::after{content:"";position:absolute;left:0;bottom:-0.35rem;width:0;height:1px;background:linear-gradient(90deg,var(--color-brass),var(--color-primary));opacity:0;transition:width var(--duration-normal) var(--easing-standard),opacity var(--duration-normal) var(--easing-standard)}.bb-header__nav-link:hover{color:var(--gray-50)}.bb-header__nav-link:hover::after{width:100%;opacity:1}.bb-header__nav-item--highlight .bb-header__nav-link--cta{padding:0.45rem 1.1rem;border-radius:999px;border:1px solid rgba(199,165,106,0.7);background:radial-gradient(circle at top,rgba(11,122,99,0.18),rgba(5,6,8,1));box-shadow:0 0 0 1px rgba(0,0,0,0.6),0 14px 35px rgba(0,0,0,0.8);color:var(--gray-50)}.bb-header__nav-item--highlight .bb-header__nav-link--cta::after{display:none}.bb-header__nav-item--highlight .bb-header__nav-link--cta:hover{border-color:rgba(199,165,106,1);background:radial-gradient(circle at top,rgba(11,122,99,0.42),rgba(5,6,8,1))}.bb-header__toggle{display:none;align-items:center;gap:0.6rem;padding:0.35rem 0.6rem;border-radius:999px;border:1px solid rgba(199,165,106,0.4);color:var(--gray-100);cursor:pointer;transition:background var(--duration-normal) var(--easing-standard),border-color var(--duration-normal) var(--easing-standard),transform var(--duration-fast) var(--easing-standard)}.bb-header__toggle:focus-visible{outline:none;box-shadow:var(--shadow-focus)}.bb-header__toggle:hover{border-color:rgba(199,165,106,0.8);background:rgba(199,165,106,0.08);transform:translateY(-1px)}.bb-header__toggle-box{position:relative;width:1.45rem;height:1.2rem;display:flex;flex-direction:column;justify-content:space-between}.bb-header__toggle-line{height:1px;width:100%;border-radius:999px;background:linear-gradient(90deg,var(--color-brass),var(--color-primary));transition:transform var(--duration-normal) var(--easing-standard),opacity var(--duration-normal) var(--easing-standard),top var(--duration-normal) var(--easing-standard),bottom var(--duration-normal) var(--easing-standard)}.bb-header__toggle-text{font-size:0.7rem;letter-spacing:0.18em;text-transform:uppercase}.bb-header__toggle[aria-expanded=true] .bb-header__toggle-line:first-child{transform:translateY(0.4rem) rotate(45deg)}.bb-header__toggle[aria-expanded=true] .bb-header__toggle-line:last-child{transform:translateY(-0.4rem) rotate(-45deg)}.bb-header__toggle[aria-expanded=true] .bb-header__toggle-line:nth-child(2){opacity:0}@media (max-width:960px){.bb-header__nav-list{position:fixed;inset-inline:0;top:4.2rem;max-height:0;overflow:hidden;flex-direction:column;align-items:flex-start;padding-inline:var(--space-4);padding-bottom:0;background:radial-gradient(circle at top,#181b22 0,#050608 55%,#020204 100%);border-bottom:1px solid rgba(199,165,106,0.22);gap:0;transition:max-height var(--duration-normal) var(--easing-standard),padding-bottom var(--duration-normal) var(--easing-standard);pointer-events:none;opacity:0}.bb-header__nav-item{width:100%;border-top:1px solid rgba(255,255,255,0.04)}.bb-header__nav-link{display:block;width:100%;padding-block:0.9rem}.bb-header__nav-item--highlight .bb-header__nav-link--cta{margin-block:0.6rem}.bb-header__toggle{display:inline-flex}.bb-header__nav-list.is-open{max-height:22rem;padding-bottom:var(--space-4);pointer-events:auto;opacity:1}}@media (max-width:520px){.bb-header__brand-tagline{display:none}.bb-header__brand-name{font-size:1.02rem;letter-spacing:0.26em}.bb-header__logo-mark{width:2.3rem;height:2.3rem}}