:root{--primary-color: #4a6fa5;--secondary-color: #166088;--accent-color: #4fc3f7;--text-color: #333;--light-gray: #f5f5f5;--white: #ffffff;--success-color: #4caf50;--error-color: #f44336}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--light-gray);padding:20px}.app-container{max-width:1000px;margin:0 auto;padding:20px}.report-downloader{background-color:var(--white);border-radius:10px;box-shadow:0 4px 12px #0000001a;padding:30px;text-align:center}h1{color:var(--primary-color);margin-bottom:20px;font-size:2rem}.description{margin-bottom:30px;color:#555;font-size:1.1rem}.download-btn{background-color:var(--primary-color);color:#fff;border:none;padding:12px 24px;font-size:1rem;border-radius:5px;cursor:pointer;transition:all .3s ease;margin-bottom:20px;display:inline-flex;align-items:center;justify-content:center;min-width:200px}.download-btn:hover{background-color:var(--secondary-color);transform:translateY(-2px);box-shadow:0 4px 8px #0000001a}.download-btn:disabled{background-color:#ccc;cursor:not-allowed;transform:none;box-shadow:none}.spinner{display:inline-block;width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:var(--white);animation:spin 1s ease-in-out infinite;margin-right:10px}@keyframes spin{to{transform:rotate(360deg)}}.message{margin:15px 0;padding:10px;border-radius:5px;opacity:0;transition:opacity .3s ease}.message.show{opacity:1}.message.success{background-color:#4caf5033;color:var(--success-color)}.message.error{background-color:#f4433633;color:var(--error-color)}.report-info{margin-top:30px;text-align:left;background-color:var(--light-gray);padding:20px;border-radius:8px}.report-info h2{color:var(--secondary-color);margin-bottom:15px;font-size:1.5rem}.report-info ul{list-style-type:none}.report-info li{margin-bottom:10px;padding-left:20px;position:relative}.report-info li:before{content:"•";color:var(--accent-color);font-size:1.5rem;position:absolute;left:0;top:-3px}@media (max-width: 768px){body{padding:10px}.report-downloader{padding:20px}h1{font-size:1.5rem}.description{font-size:1rem}.download-btn{padding:10px 20px;font-size:.9rem;min-width:180px}.report-info{padding:15px}.report-info h2{font-size:1.3rem}}@media (max-width: 480px){.app-container{padding:10px}.report-downloader{padding:15px}h1{font-size:1.3rem}.download-btn{width:100%}}