.fullscreen-menu{align-items:center;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:var(--menu-bg);display:flex;flex-direction:column;height:100dvh;top:0;right:0;bottom:0;left:0;justify-content:center;opacity:0;overflow:hidden;padding:1rem;position:fixed;transition:opacity .3s ease,visibility 0s linear .3s;visibility:hidden;width:100%;z-index:890}.fullscreen-menu.is-open{opacity:1;transition:opacity .3s ease,visibility 0s;visibility:visible}.fullscreen-menu nav{align-items:center;display:flex;flex-direction:column;gap:.5rem}.fullscreen-menu nav a{align-items:center;color:var(--text);display:flex;font-size:clamp(2rem,8vw,3.5rem);font-weight:700;min-height:44px;opacity:0;padding:.1em 0;position:relative;transform:translateY(30px);transition:opacity .4s ease,transform .4s ease,color .2s}.fullscreen-menu.is-open nav a{opacity:1;transform:translateY(0)}.fullscreen-menu.is-open nav a:first-child{transition-delay:.2s}.fullscreen-menu.is-open nav a:nth-child(2){transition-delay:.3s}.fullscreen-menu.is-open nav a:nth-child(3){transition-delay:.4s}.fullscreen-menu.is-open nav a:nth-child(4){transition-delay:.5s}.fullscreen-menu nav a:after{background:var(--accent);bottom:0;content:"";height:2px;left:0;position:absolute;transition:width .3s cubic-bezier(.4,0,.2,1);width:0}.fullscreen-menu nav a:hover{color:var(--accent)}.fullscreen-menu nav a:hover:after{width:100%}.fullscreen-menu-social{display:flex;gap:1.5rem;margin-top:1.5rem;opacity:0;transform:translateY(10px);transition:opacity .4s ease .6s,transform .4s ease .6s}.fullscreen-menu.is-open .fullscreen-menu-social{opacity:1;transform:translateY(0)}.fullscreen-menu-social a{align-items:center;color:var(--text-secondary);display:flex;font-size:.85rem;font-weight:500;letter-spacing:.06em;min-height:44px;text-transform:uppercase;transition:color .2s}.fullscreen-menu-social a:hover{color:var(--accent)}