.btn-secondary{background:linear-gradient(135deg,#667eea,#764ba2);border:2px solid transparent;color:#fff;transition:all .3s ease}.btn-secondary:hover{background:linear-gradient(135deg,#5a67d8,#6b46c1);box-shadow:0 4px 20px #667eea4d;transform:translateY(-2px)}@keyframes shimmer{0%{background-position:-200px 0}to{background-position:calc(200px + 100%) 0}}.skeleton-shimmer{animation:shimmer 1.5s infinite;background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0,#f0f0f0 75%);background-size:200px 100%}.fade-enter-active,.fade-leave-active{transition:opacity .3s ease}.fade-enter-from,.fade-leave-to{opacity:0}