.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; }
.site-header .nav { height: var(--header-height); max-width: 1180px; margin: 12px auto; padding: 0 20px; display: flex; align-items: center; gap: 24px; background: rgba(255,255,255,0.75); backdrop-filter: blur(10px); border-radius: 999px; box-shadow: 0 10px 24px rgba(0,0,0,0.15); }
.site-header .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; letter-spacing: 0.2px; }
.site-header .brand-logo { display: inline-block; height: auto; max-height: 52px; width: auto; }
.site-header .nav-links { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.site-header .nav-links a { color: #4b5563; font-weight: 600; }
.site-header .nav-links a:hover { color: #111; }
.site-header .cta { margin-left: 8px; padding: 10px 18px; border-radius: 999px; color: #fff; font-weight: 700; background: linear-gradient(135deg, #ff6b6b 0%, #e63946 100%); box-shadow: 0 6px 14px rgba(230,57,70,0.35); }
.site-header .cta:hover { filter: brightness(1.05); }