*{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}.converter-container{max-width:900px;margin:0 auto;padding:2rem}.header{text-align:center;margin-bottom:3rem}.header h1{font-size:2.5rem;margin-bottom:.5rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header p{color:#666;font-size:1.1rem}.upload-section{margin-bottom:2rem}.upload-label{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem;border:2px dashed #667eea;border-radius:12px;cursor:pointer;transition:all .3s ease;background:linear-gradient(135deg,#667eea0d,#764ba20d)}.upload-label:hover{border-color:#764ba2;background:linear-gradient(135deg,#667eea1a,#764ba21a);transform:translateY(-2px)}.upload-label svg{color:#667eea;margin-bottom:1rem}.upload-text{font-size:1.2rem;font-weight:600;color:#333;margin-bottom:.5rem}.upload-subtext{font-size:.9rem;color:#666}.file-input{display:none}.preview-section{margin-bottom:2rem;animation:fadeIn .5s ease}.preview-section h2{font-size:1.5rem;margin-bottom:1rem;color:#333}.preview-container{border:2px solid #e0e0e0;border-radius:12px;padding:1rem;background:#f9f9f9;display:flex;justify-content:center;align-items:center;min-height:200px}.preview-image{max-width:100%;max-height:400px;border-radius:8px;box-shadow:0 4px 6px #0000001a}.output-section{margin-top:2rem;animation:fadeIn .5s ease}.output-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;flex-wrap:wrap;gap:1rem}.output-header h2{font-size:1.5rem;color:#333}.button-group{display:flex;gap:.5rem}.copy-button,.reset-button{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.copy-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.copy-button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.copy-button.copied{background:linear-gradient(135deg,#48bb78,#38a169)}.reset-button{background:#f0f0f0;color:#333}.reset-button:hover{background:#e0e0e0;transform:translateY(-2px)}.output-container{margin-bottom:1rem}.output-textarea{width:100%;padding:1rem;border:2px solid #e0e0e0;border-radius:8px;font-family:Courier New,monospace;font-size:.9rem;resize:vertical;min-height:150px;background:#f9f9f9;color:#333;line-height:1.5}.output-textarea:focus{outline:none;border-color:#667eea}.output-info{color:#666;font-size:.9rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.converter-container{padding:1rem}.header h1{font-size:2rem}.upload-label{padding:2rem 1rem}.output-header{flex-direction:column;align-items:flex-start}.button-group{width:100%;flex-direction:column}.copy-button,.reset-button{width:100%;justify-content:center}}.app{min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}