.krav-header{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(88,120,88,0.8)}.krav-header__inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;padding-top:var(--space-5);padding-bottom:var(--space-5);gap:var(--space-7)}.krav-header__brand{display:flex;align-items:center;gap:var(--space-4);text-transform:uppercase;letter-spacing:0.18em;font-family:var(--font-display);font-size:var(--font-size-xs)}.krav-header__logo-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;background:radial-gradient(circle at 0 0,rgba(85,239,124,0.32),transparent 60%),var(--color-surface);box-shadow:var(--shadow-soft);border:1px solid rgba(85,239,124,0.6);font-family:var(--font-mono);font-size:0.72rem;color:var(--color-primary)}.krav-header__brand-text{display:flex;flex-direction:column;gap:2px}.krav-header__brand-name{font-weight:600;color:var(--color-text);font-size:0.85rem}.krav-header__brand-tag{font-family:var(--font-mono);font-size:0.65rem;color:var(--color-text-muted);text-transform:none;letter-spacing:0.12em}.krav-header__nav{position:absolute;inset-inline:0;top:100%;transform-origin:top center;background:radial-gradient(circle at 0 0,rgba(85,239,124,0.1),transparent 60%),var(--color-bg);border-bottom:1px solid rgba(88,120,88,0.8);max-height:0;overflow:hidden;opacity:0;visibility:hidden;transition:max-height var(--transition-base),opacity var(--transition-base),visibility var(--transition-base)}.krav-header__nav--open{opacity:1;visibility:visible;max-height:320px}.krav-header__nav-list{display:flex;flex-direction:column;padding:var(--space-5) 0;gap:var(--space-3)}.krav-header__nav-item{display:block}.krav-header__nav-link{display:inline-flex;align-items:center;width:100%;padding:var(--space-4) var(--space-1);font-family:var(--font-mono);font-size:var(--font-size-xs);letter-spacing:0.16em;text-transform:uppercase;color:var(--color-text-muted);border-bottom:1px solid transparent}.krav-header__nav-link:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.krav-header__nav-link:hover{color:var(--color-primary)}.krav-header__nav-item--cta{padding-top:var(--space-3)}.krav-header__cta{width:100%;justify-content:center}.nav-toggle{margin-left:auto}@media (min-width:768px){.nav-toggle{display:none}.krav-header__nav{position:static;opacity:1;visibility:visible;max-height:none;border-bottom:none;background:transparent;transform:none}.krav-header__nav-list{flex-direction:row;align-items:center;gap:var(--space-7);padding:0}.krav-header__nav-link{width:auto;padding:0;font-size:0.72rem;border-bottom:1px solid transparent}.krav-header__nav-link:hover{border-bottom-color:rgba(85,239,124,0.8)}.krav-header__nav-item--cta{padding-top:0}.krav-header__cta{width:auto}}@media (min-width:1024px){.krav-header__brand-name{font-size:0.95rem}.krav-header__brand-tag{font-size:0.7rem}}