.site-header{position:sticky;top:0;z-index:var(--z-header);backdrop-filter:blur(var(--blur-glass));-webkit-backdrop-filter:blur(var(--blur-glass));background:linear-gradient(135deg,rgba(255,255,255,0.78),rgba(255,255,255,0.9));border-bottom:1px solid rgba(255,255,255,0.8);box-shadow:0 10px 30px rgba(15,23,42,0.06)}.site-header__inner{height:var(--header-height-mobile);display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.site-header__brand{display:flex;align-items:center;min-width:0}.site-header__logo-link{display:inline-flex;align-items:center;gap:0.7rem}.site-header__logo-mark{position:relative;width:2.25rem;height:2.25rem;border-radius:var(--radius-full);background:radial-gradient(circle at 30% 20%,var(--color-accent-pink),transparent 55%),radial-gradient(circle at 70% 80%,var(--color-accent-mint),transparent 55%),radial-gradient(circle at 70% 20%,var(--color-secondary),transparent 55%);box-shadow:0 12px 30px rgba(148,163,184,0.45);overflow:hidden}.site-header__logo-orbit{position:absolute;inset:18%;border-radius:999px;border:2px dashed rgba(248,250,252,0.6);opacity:0.8}.site-header__logo-dot{position:absolute;width:0.55rem;height:0.55rem;border-radius:999px;background:#fff;top:18%;right:20%;box-shadow:0 0 0 4px rgba(248,250,252,0.55)}.site-header__brand-text{display:flex;flex-direction:column}.site-header__title{font-family:var(--font-display);font-weight:700;font-size:1.1rem;letter-spacing:0.08em;text-transform:uppercase;color:var(--color-text)}.site-header__tagline{font-size:0.7rem;letter-spacing:0.16em;text-transform:uppercase;color:var(--color-text-muted);white-space:nowrap}.site-header__nav{position:fixed;inset:var(--header-height-mobile) var(--space-4) auto var(--space-4);border-radius:var(--radius-xl);background:linear-gradient(145deg,rgba(255,255,255,0.96),rgba(255,255,255,0.9));box-shadow:var(--shadow-glass);transform:translateY(-120%);opacity:0;visibility:hidden;transition:transform var(--transition-base),opacity var(--transition-base),visibility var(--transition-base);max-height:calc(100vh - var(--header-height-mobile) - 2*var(--space-4));overflow-y:auto}.site-header__nav-list{display:flex;flex-direction:column;gap:0.25rem;padding:var(--space-4)}.site-header__nav-link{display:block;padding:0.7rem 0.9rem;border-radius:var(--radius-lg);font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-soft);background:transparent}.site-header__nav-link:focus-visible{outline:none;box-shadow:var(--shadow-focus);background:rgba(148,163,184,0.08)}.site-header__nav-link:hover{background:rgba(148,163,184,0.08);color:var(--color-text)}.site-header__nav-item--cta .site-header__nav-link{margin-top:0.5rem;text-align:center;background:linear-gradient(135deg,var(--color-primary),var(--color-accent-pink));color:#fff;box-shadow:0 12px 28px rgba(59,130,246,0.45)}.site-header__nav-item--cta .site-header__nav-link:hover{filter:brightness(1.05)}.site-header__nav-link--cta{font-size:var(--font-size-sm);text-transform:uppercase;letter-spacing:0.12em}.site-header__toggle{display:inline-flex;flex-direction:column;justify-content:center;align-items:center;width:2.5rem;height:2.5rem;border-radius:999px;border:1px solid rgba(148,163,184,0.7);background:rgba(255,255,255,0.86);box-shadow:0 10px 25px rgba(148,163,184,0.4);gap:0.25rem;flex-shrink:0}.site-header__toggle:focus-visible{outline:none;box-shadow:var(--shadow-focus)}.site-header__toggle-bar{width:1.2rem;height:2px;border-radius:999px;background:var(--color-text);transition:transform var(--transition-base),opacity var(--transition-base),width var(--transition-base)}.site-header__toggle.is-active .site-header__toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg);width:1.4rem}.site-header__toggle.is-active .site-header__toggle-bar:nth-child(2){opacity:0}.site-header__toggle.is-active .site-header__toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg);width:1.4rem}.site-header__nav--open{transform:translateY(0);opacity:1;visibility:visible}.site-header__nav-backdrop{position:fixed;inset:0;z-index:calc(var(--z-header) - 1);background:radial-gradient(circle at 0 0,rgba(56,189,248,0.22),transparent 55%),radial-gradient(circle at 100% 0,rgba(244,114,182,0.22),transparent 55%),rgba(15,23,42,0.48);opacity:0;visibility:hidden;transition:opacity var(--transition-base),visibility var(--transition-base)}.site-header__nav-backdrop--visible{opacity:1;visibility:visible}.skip-link{position:absolute;left:50%;transform:translate(-50%,-150%);padding:0.6rem 1.1rem;border-radius:var(--radius-pill);background:var(--color-text);color:#ffffff;z-index:var(--z-overlay);transition:transform var(--transition-base)}.skip-link:focus{transform:translate(-50%,0.75rem)}@media(min-width:768px){.site-header__inner{height:var(--header-height-desktop)}.site-header__tagline{font-size:0.72rem}.site-header__nav{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;background:transparent;max-height:none;overflow:visible;inset:auto}.site-header__nav-list{flex-direction:row;align-items:center;gap:0.5rem;padding:0}.site-header__nav-link{padding:0.4rem 0.9rem;background:transparent;font-size:var(--font-size-sm)}.site-header__nav-item--cta .site-header__nav-link{margin-top:0;padding:0.55rem 1.2rem}.site-header__toggle{display:none}.site-header__nav-backdrop{display:none}}@media(min-width:1024px){.site-header__nav-list{gap:0.75rem}.site-header__title{font-size:1.15rem}.site-header__tagline{font-size:0.74rem}}