.bd-header{position:sticky;top:0;z-index:50;background:linear-gradient(to bottom,rgba(11,13,18,0.98),rgba(11,13,18,0.92),rgba(11,13,18,0.85));backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(212,175,55,0.18)}.bd-header__inner{display:flex;align-items:center;justify-content:space-between;height:72px}.bd-header__brand{display:flex;align-items:center;gap:12px}.bd-header__mark{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:999px;background:radial-gradient(circle at 20% 0,#D4AF37,#9E1B32);color:#0B0D12;font-family:var(--font-serif);font-weight:600;font-size:0.98rem;letter-spacing:0.08em;text-transform:uppercase;box-shadow:var(--shadow-soft)}.bd-header__text{display:flex;flex-direction:column}.bd-header__title{font-family:var(--font-serif);font-size:1.05rem;letter-spacing:0.12em;text-transform:uppercase}.bd-header__subtitle{font-size:0.7rem;letter-spacing:0.16em;text-transform:uppercase;color:var(--color-text-muted)}.bd-header__nav{display:flex;align-items:center;gap:32px}.bd-header__nav-list{display:flex;align-items:center;gap:20px;list-style:none;margin:0;padding:0}.bd-header__nav-link{position:relative;font-size:0.8rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--color-text-muted);padding-bottom:4px}.bd-header__nav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:linear-gradient(90deg,#D4AF37,#F3E5AB);transition:width var(--transition-normal)}.bd-header__nav-link:focus-visible::after,.bd-header__nav-link:hover::after{width:100%}.bd-header__nav-link:hover{color:var(--color-primary-champagne)}.bd-header__cta-group{display:flex;align-items:center;gap:12px}.bd-header__cta{font-size:0.7rem;padding-inline:1.3rem;padding-block:0.55rem}.bd-header__cta--primary{font-weight:600}.bd-header__toggle{display:none;flex-direction:column;justify-content:center;align-items:center;width:42px;height:42px;border-radius:999px;border:1px solid rgba(212,175,55,0.4);background:rgba(11,13,18,0.95);box-shadow:var(--shadow-subtle);transition:background-color var(--transition-normal),transform var(--transition-fast),border-color var(--transition-normal)}.bd-header__toggle:focus-visible,.bd-header__toggle:hover{border-color:rgba(243,229,171,0.85);background:rgba(11,13,18,0.98);transform:translateY(-1px)}.bd-header__toggle-bar{width:18px;height:2px;border-radius:999px;background:var(--color-primary-champagne);transition:transform var(--transition-normal),opacity var(--transition-normal),translate var(--transition-normal)}.bd-header__toggle-bar+.bd-header__toggle-bar{margin-top:4px}.bd-header__toggle--open .bd-header__toggle-bar:first-child{transform:rotate(45deg) translate(3px,3px)}.bd-header__toggle--open .bd-header__toggle-bar:last-child{transform:rotate(-45deg) translate(3px,-3px)}@media (max-width:900px){.bd-header__nav{position:fixed;inset:72px 0 auto 0;max-height:0;overflow:hidden;flex-direction:column;align-items:stretch;gap:0;background:linear-gradient(to bottom,rgba(11,13,18,0.98),rgba(11,13,18,0.98),rgba(11,13,18,0.96));border-bottom:1px solid rgba(212,175,55,0.14);transition:max-height var(--transition-slow)}.bd-header__nav--open{max-height:360px}.bd-header__nav-list{flex-direction:column;align-items:flex-start;padding:8px 16px 4px}.bd-header__nav-item{width:100%}.bd-header__nav-link{display:block;width:100%;padding:10px 0}.bd-header__cta-group{padding:8px 16px 16px;justify-content:flex-start}.bd-header__cta{width:100%;justify-content:center}.bd-header__toggle{display:inline-flex}}@media (max-width:480px){.bd-header__subtitle{display:none}.bd-header__brand{gap:8px}.bd-header__inner{height:64px}}