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label{font-size:14px;font-weight:600;color:#4a5568;margin-bottom:4px}.text-input{width:100%;padding:14px 18px;border:2px solid #e2e8f0;border-radius:12px;font-size:16px;transition:all .2s ease;outline:none;background:#fff;color:#2d3748}.text-input:hover{border-color:#cbd5e0}.text-input:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a;background:#fff}.file-input{width:100%;padding:14px 18px;border:2px dashed #cbd5e0;border-radius:12px;font-size:16px;cursor:pointer;transition:all .2s ease;outline:none;background:#f7fafc;color:#2d3748}.file-input:hover{border-color:#667eea;background:#edf2f7;border-style:solid}.file-input:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a;border-style:solid}.file-name{margin-top:10px;font-size:14px;color:#667eea;font-weight:600;padding:8px 12px;background:#667eea1a;border-radius:8px;display:inline-block}.convert-button{width:100%;padding:16px 24px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-size:17px;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea4d;letter-spacing:.3px;position:relative;overflow:hidden}.convert-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}.convert-button:hover:before{left:100%}.convert-button:hover{transform:translateY(-3px);box-shadow:0 8px 25px #667eea80;background:linear-gradient(135deg,#7c8ef0,#8a5db8)}.convert-button:active{transform:translateY(-1px);box-shadow:0 4px 15px #667eea66}.convert-button:disabled{opacity:.65;cursor:not-allowed;transform:none;background:linear-gradient(135deg,#a0aec0,#cbd5e0)}.convert-button:disabled:hover{transform:none;box-shadow:0 4px 15px #a0aec04d;background:linear-gradient(135deg,#a0aec0,#cbd5e0)}.convert-button:disabled:before{display:none}.popup-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:center;z-index:1000;opacity:0;animation:fadeIn .3s ease forwards}@keyframes fadeIn{to{opacity:1}}.popup{background:#fff;border-radius:16px;padding:32px;max-width:400px;width:90%;box-shadow:0 20px 60px #0000004d;position:relative;animation:slideUp .3s ease forwards;transform:translateY(20px)}@keyframes slideUp{to{transform:translateY(0)}}.popup-close{position:absolute;top:12px;right:12px;background:none;border:none;font-size:28px;color:#9ca3af;cursor:pointer;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:8px;transition:all .2s ease}.popup-close:hover{background:#f3f4f6;color:#4b5563}.popup-icon{display:flex;justify-content:center;margin-bottom:16px}.popup-message{text-align:center;font-size:16px;color:#374151;font-weight:500;line-height:1.5;margin:0}.popup.success{border-top:4px solid #10b981}.popup.error{border-top:4px solid #ef4444}.popup.info{border-top:4px solid #667eea}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);min-height:100vh;display:flex;justify-content:center;align-items:center;padding:20px;position:relative;overflow-x:hidden}body:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 30%,rgba(102,126,234,.08) 0%,transparent 50%),radial-gradient(circle at 80% 70%,rgba(118,75,162,.08) 0%,transparent 50%);pointer-events:none}#root{width:100%;max-width:600px}