.tff-header{position:sticky;top:0;z-index:40;background:linear-gradient(to bottom,rgba(2,5,4,0.96),rgba(2,5,4,0.9));backdrop-filter:blur(16px);border-bottom:1px solid var(--color-border-subtle)}.tff-header-inner{display:flex;align-items:center;justify-content:space-between;padding-top:var(--space-4);padding-bottom:var(--space-4);gap:var(--space-4)}.tff-brand-link{display:inline-flex;align-items:center;gap:var(--space-3);color:var(--color-text-primary)}.tff-brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--radius-full);border:1px solid rgba(16,185,129,0.7);background:radial-gradient(circle at 30% 0,rgba(16,185,129,0.4),rgba(2,5,4,0.98));font-family:var(--font-display);font-size:0.9rem;letter-spacing:0.18em;text-transform:uppercase}.tff-brand-text{display:flex;flex-direction:column;gap:2px}.tff-brand-name{font-family:var(--font-display);font-size:1.1rem;letter-spacing:0.22em;text-transform:uppercase}.tff-brand-tagline{font-size:0.7rem;letter-spacing:0.2em;text-transform:uppercase;color:var(--color-text-soft)}.tff-nav{display:flex;align-items:center}.tff-nav-list{display:flex;align-items:center;gap:var(--space-4)}.tff-nav-link{position:relative;display:inline-flex;align-items:center;justify-content:center;padding:6px 0;font-size:0.78rem;letter-spacing:0.18em;text-transform:uppercase;color:var(--color-text-soft)}.tff-nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:linear-gradient(90deg,transparent,var(--color-accent-emerald),transparent);opacity:0;transform:scaleX(0.3);transform-origin:center;transition:opacity var(--transition-base),transform var(--transition-base)}.tff-nav-link:hover,.tff-nav-link:focus-visible{color:var(--color-text-primary)}.tff-nav-link:hover::after,.tff-nav-link:focus-visible::after{opacity:1;transform:scaleX(1)}.tff-nav-cta-item{margin-left:var(--space-2)}.tff-nav-cta{padding:8px 18px;border-radius:999px;border:1px solid rgba(16,185,129,0.7);background:rgba(4,23,19,0.96);color:var(--color-accent-emerald);box-shadow:0 0 0 1px rgba(0,0,0,0.9);transition:background var(--transition-base),color var(--transition-base),border-color var(--transition-base),transform var(--transition-fast),box-shadow var(--transition-fast)}.tff-nav-cta::after{display:none}.tff-nav-cta:hover,.tff-nav-cta:focus-visible{background:var(--color-accent-emerald);color:#020504;border-color:var(--color-accent-emerald);box-shadow:var(--shadow-subtle);transform:translateY(-1px)}.tff-nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:999px;border:1px solid var(--color-border-subtle);background:rgba(4,23,19,0.98);padding:0;gap:5px}.tff-nav-toggle-bar{width:18px;height:1.5px;background:var(--color-text-primary);border-radius:999px;transition:transform var(--transition-base),opacity var(--transition-base),background var(--transition-base)}.tff-header-menu-open .tff-nav-toggle-bar:first-child{transform:translateY(3px) rotate(45deg)}.tff-header-menu-open .tff-nav-toggle-bar:last-child{transform:translateY(-3px) rotate(-45deg)}.tff-header-menu-open .tff-nav-toggle-bar:nth-child(2){opacity:0}@media (max-width:767.98px){.tff-nav-toggle{display:inline-flex}.tff-nav{position:fixed;inset:56px 0 auto 0;z-index:30;pointer-events:none}.tff-nav-list{position:absolute;right:var(--space-4);left:var(--space-4);top:var(--space-3);flex-direction:column;align-items:stretch;padding:var(--space-4);gap:var(--space-3);border-radius:var(--radius-lg);background:radial-gradient(circle at top,rgba(16,185,129,0.16),transparent 55%),rgba(2,5,4,0.98);border:1px solid var(--color-border-subtle);box-shadow:var(--shadow-soft);opacity:0;transform:translateY(-10px);transition:opacity var(--transition-base),transform var(--transition-base),visibility var(--transition-base);visibility:hidden}.tff-header-menu-open .tff-nav{pointer-events:auto}.tff-header-menu-open .tff-nav-list{opacity:1;transform:translateY(0);visibility:visible}.tff-nav-link{justify-content:flex-start;padding:8px 4px;border-radius:var(--radius-sm)}.tff-nav-link::after{display:none}.tff-nav-cta-item{margin-left:0;margin-top:var(--space-2)}.tff-nav-cta{width:100%;justify-content:center}}@media (min-width:768px){.tff-nav-list{margin-left:var(--space-6)}}.tff-nav-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}