.site-header{position:sticky;top:0;z-index:40;background:rgba(245,247,251,0.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(148,163,184,0.4)}.header-container{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:10px}.header-brand{display:inline-flex;align-items:center;gap:10px}.header-brand-mark{width:30px;height:30px;border-radius:12px;background:conic-gradient(from 210deg,var(--color-primary),var(--color-accent-blue),var(--color-accent-purple),var(--color-accent-coral),var(--color-accent-yellow),var(--color-primary));box-shadow:0 0 0 1px rgba(148,163,184,0.85)}.header-brand-text{display:flex;flex-direction:column}.header-brand-title{font-family:var(--font-heading);font-size:0.95rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--gray-900)}.header-brand-subtitle{font-size:0.75rem;color:var(--color-text-muted)}.header-nav{position:absolute;inset-inline:0;top:100%;background:rgba(245,247,251,0.98);border-bottom:1px solid rgba(148,163,184,0.4);transform-origin:top;transform:scaleY(0.9);opacity:0;visibility:hidden;transition:opacity var(--transition-base),transform var(--transition-base),visibility var(--transition-base)}.header-nav-list{display:flex;flex-direction:column;gap:4px;padding:8px 16px 12px}.header-nav-item{width:100%}.header-nav-link{display:block;padding:8px 10px;border-radius:999px;font-size:0.9rem;color:var(--color-text-soft)}.header-nav-link:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.header-nav-link:hover{background:rgba(255,255,255,0.8);color:var(--color-primary)}.header-nav-item--highlight .header-nav-link{font-weight:600;color:var(--color-primary-strong)}.header-cta-wrapper{display:none}.header-toggle{display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;width:40px;height:40px;border-radius:999px;border:1px solid rgba(148,163,184,0.8);background:rgba(248,250,252,0.9);cursor:pointer;transition:background var(--transition-base),border-color var(--transition-base),transform var(--transition-base)}.header-toggle-bar{width:18px;height:2px;border-radius:999px;background:var(--gray-800);transition:transform var(--transition-base),opacity var(--transition-base),background var(--transition-base)}.header-toggle:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.site-header--nav-open .header-nav{opacity:1;visibility:visible;transform:scaleY(1)}.site-header--nav-open .header-toggle{background:#0b1120;border-color:rgba(148,163,184,0.9)}.site-header--nav-open .header-toggle-bar{background:#e5e7eb}.site-header--nav-open .header-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg)}.site-header--nav-open .header-toggle-bar:nth-child(2){opacity:0}.site-header--nav-open .header-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}@media (min-width:768px){.header-container{padding-block:12px}.header-nav{position:static;opacity:1;visibility:visible;transform:none;background:transparent;border-bottom:none}.header-nav-list{flex-direction:row;align-items:center;gap:18px;padding:0}.header-nav-link{padding:6px 0;font-size:0.88rem;border-radius:0;position:relative}.header-nav-link::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;border-radius:999px;background:linear-gradient(90deg,var(--color-primary),var(--color-accent-blue));transition:width var(--transition-base)}.header-nav-link:hover::after{width:100%}.header-nav-item--highlight .header-nav-link{padding-inline:10px;border-radius:999px;background:rgba(4,201,215,0.08);border:1px solid rgba(4,201,215,0.4)}.header-nav-item--highlight .header-nav-link::after{display:none}.header-toggle{display:none}.header-cta-wrapper{display:flex}.header-cta{font-size:0.8rem;box-shadow:0 14px 35px rgba(15,23,42,0.35)}.header-cta .btn-google-play-label span:first-child{font-size:0.62rem}.header-cta .btn-google-play-label span:last-child{font-size:0.9rem}}@media (min-width:1024px){.header-brand-title{font-size:1rem}.header-brand-subtitle{font-size:0.8rem}.header-nav-link{font-size:0.9rem}}