html,body{margin:0;padding:0;height:100%;width:100%;background:linear-gradient(135deg,#667eea,#764ba2);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;display:flex;justify-content:center;align-items:center}.container{background:#fffffff2;border-radius:20px;padding:40px;box-shadow:0 20px 40px #0000001a;max-width:500px;width:90%;text-align:center;backdrop-filter:blur(10px)}.title{font-size:2.5em;font-weight:700;color:#333;margin-bottom:10px;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subtitle{font-size:1.1em;color:#666;margin-bottom:40px}.upload-area{border:3px dashed #667eea;border-radius:15px;padding:40px 20px;margin-bottom:30px;cursor:pointer;transition:all .3s ease;background:#667eea0d}.upload-area:hover{border-color:#764ba2;background:#764ba21a;transform:translateY(-2px)}.upload-area.dragover{border-color:#764ba2;background:#764ba226;transform:scale(1.02)}.upload-icon{font-size:3em;color:#667eea;margin-bottom:15px}.upload-text{font-size:1.2em;color:#333;margin-bottom:10px;font-weight:500}.upload-hint{font-size:.9em;color:#666}.file-input{display:none}.button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:50px;padding:15px 30px;font-size:1.1em;font-weight:600;cursor:pointer;transition:all .3s ease;margin:10px;min-width:150px}.button:hover{transform:translateY(-2px);box-shadow:0 10px 20px #667eea4d}.button:disabled{background:#ccc;cursor:not-allowed;transform:none;box-shadow:none}.status{margin:20px 0;padding:15px;border-radius:10px;font-weight:500;transition:all .3s ease}.status.hidden{display:none}.status.info{background:#667eea1a;color:#667eea;border:1px solid rgba(102,126,234,.2)}.status.success{background:#4caf501a;color:#4caf50;border:1px solid rgba(76,175,80,.2)}.status.error{background:#f443361a;color:#f44336;border:1px solid rgba(244,67,54,.2)}.file-info{background:#667eea0d;border-radius:10px;padding:15px;margin:20px 0;text-align:left}.file-info.hidden{display:none}.file-info-title{font-weight:600;color:#333;margin-bottom:10px}.file-info-detail{color:#666;font-size:.9em;margin:5px 0}.progress-bar{width:100%;height:6px;background:#667eea1a;border-radius:3px;overflow:hidden;margin:20px 0}.progress-bar.hidden{display:none}.progress-fill{height:100%;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:3px;transition:width .3s ease;width:0%}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.processing{animation:pulse 1.5s infinite}