.line-clamp-2{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.line-clamp-3{-webkit-line-clamp:3;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.file-item:hover{background-color:#f8fafc;border-color:#e2e8f0;transition:all .2s ease-in-out;transform:translateY(-1px)}.download-btn{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;transition:all .3s}.download-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px #00000026}.filter-section{background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%);border-radius:12px;margin-bottom:2rem;padding:1.5rem}.loading-spinner{border:4px solid #f3f3f3;border-top-color:#3498db;border-radius:50%;width:40px;height:40px;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}