.platform-sidebar{background:linear-gradient(180deg,#1e1b4b,#312e81 60%,#1e1b4b);box-shadow:4px 0 24px rgba(30,27,75,.22)}.platform-sidebar-link{display:flex;align-items:center;gap:.75rem;padding:.625rem .75rem;border-radius:.5rem;font-size:.875rem;font-weight:500;color:hsla(0,0%,100%,.55);transition:all .15s ease}.platform-sidebar-link:hover{background:hsla(0,0%,100%,.08);color:hsla(0,0%,100%,.9);transform:translateX(2px)}.platform-sidebar-link.active{background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;box-shadow:0 2px 8px rgba(99,102,241,.45)}.platform-page{max-width:80rem;animation:platformFadeIn .25s ease-out}@keyframes platformFadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.platform-sidebar ::-webkit-scrollbar{width:4px}.platform-sidebar ::-webkit-scrollbar-track{background:transparent}.platform-sidebar ::-webkit-scrollbar-thumb{background:hsla(0,0%,100%,.15);border-radius:4px}