nav{position:fixed;top:0;width:100%;padding:1rem 6%;background:rgba(15,15,35,.95);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);z-index:1000}.nav-container{display:flex;justify-content:space-between;align-items:center;max-width:1400px;margin:0 auto}.logo{font-size:clamp(1.5rem,4vw,1.75rem);font-weight:800;color:var(--primary-purple);text-decoration:none}.nav-links{display:flex;gap:2rem;list-style:none}.nav-links a{color:var(--text-secondary);text-decoration:none;font-weight:500;padding:.5rem 1rem;border-radius:.375rem;transition:all .2s ease}.nav-links a:focus,.nav-links a:hover{color:var(--text-primary);background-color:rgba(124,58,237,.1)}.mobile-menu-btn{display:none;background:none;border:none;color:var(--text-primary);font-size:1.5rem;cursor:pointer;padding:.5rem}.has-submenu,.nav-links li{position:relative}.has-submenu:after{content:"";position:absolute;top:100%;left:0;right:0;height:.5rem;background:transparent}.has-submenu>.submenu{position:absolute;top:calc(100% + .5rem);left:0;min-width:250px;background:rgba(20,20,40,.98);border:1px solid var(--border-color);border-radius:.5rem;padding:.5rem 0;display:none;z-index:1100;box-shadow:0 10px 30px rgba(0,0,0,.35)}.has-submenu:focus-within>.submenu,.has-submenu:hover>.submenu{display:block}.submenu li{list-style:none}.submenu a{display:block;color:var(--text-secondary);text-decoration:none;padding:.75rem 1.25rem;border-radius:.375rem;transition:all .2s ease}.submenu a:focus,.submenu a:hover{color:var(--text-primary);background-color:rgba(124,58,237,.15)}.has-submenu:focus-within>a,.has-submenu:hover>a{color:var(--text-primary);background-color:rgba(124,58,237,.1)}@media (max-width:768px){.has-submenu:after{display:none}.has-submenu>.submenu{position:static;border:none;box-shadow:none;background:transparent;padding:0;margin-top:.25rem}.submenu a{padding-left:1.25rem}}.signin-btn{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:linear-gradient(135deg,#8e3bed,#00d4ff);border:none;border-radius:.5rem;color:#fff;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s}.signin-btn:hover{opacity:.9;transform:translateY(-1px)}.nav-user-menu{position:relative}.user-menu-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:#27272a;border:1px solid #27272a;border-radius:50%;cursor:pointer;transition:all .2s;padding:0}.user-menu-btn:hover{border-color:#8e3bed}.user-avatar{width:100%;height:100%;border-radius:50%;object-fit:cover}.user-dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:#0e0e11;border:1px solid #27272a;border-radius:.5rem;min-width:200px;box-shadow:0 4px 12px rgba(0,0,0,.3);z-index:1000;animation:slideDown .2s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.user-info{padding:1rem;border-bottom:1px solid #27272a}.user-name{font-size:.9rem;font-weight:600;color:#fafafa;margin:0 0 .25rem}.user-email{font-size:.8rem;color:#a1a1aa;margin:0}.signout-btn{width:100%;display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;background:transparent;border:none;color:#fafafa;font-size:.9rem;cursor:pointer;transition:all .2s}.signout-btn:hover{background:#27272a}.nav-auth-loading{color:#a1a1aa;font-size:.9rem}