:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--primary: #4f46e5;--primary-hover: #4338ca;--bg-gradient-start: #f3f4f6;--bg-gradient-end: #e5e7eb;--text-main: #1f2937;--text-muted: #6b7280;--card-bg: #ffffff;--border-color: #e5e7eb}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background:linear-gradient(to bottom,var(--bg-gradient-start),var(--bg-gradient-end));color:var(--text-main);min-height:100vh;display:flex;flex-direction:column}#root{flex:1;display:flex;flex-direction:column}.app-container{max-width:1280px;width:100%;margin:0 auto;padding:40px 20px;display:flex;flex-direction:column;min-height:100vh;box-sizing:border-box}.header{text-align:center;margin-bottom:40px}.header .logo{display:flex;align-items:center;justify-content:center;gap:12px;color:var(--primary)}.header h1{margin:0;font-size:2.5rem;font-weight:800}.header p{color:var(--text-muted);font-size:1.1rem;margin-top:10px}.user-guide-box{background:#fff;border-radius:12px;padding:20px 30px;margin-bottom:30px;width:100%;max-width:1100px;box-shadow:0 4px 6px -1px #0000000d;text-align:center;border:1px solid rgba(229,231,235,.5);box-sizing:border-box}.user-guide-box h3{margin:0 0 20px;color:var(--primary);font-size:1.1rem;display:flex;align-items:center;justify-content:center;gap:8px}.guide-steps{display:flex;align-items:center;justify-content:center;gap:15px;margin-bottom:20px}.guide-step{display:flex;flex-direction:column;align-items:center;gap:8px}.step-num{background:#e0e7ff;color:var(--primary);width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}.guide-step p{margin:0;font-size:.95rem;font-weight:500;color:var(--text-main)}.guide-line{height:2px;width:40px;background:#e5e7eb;margin-top:-16px}.guide-note{display:flex;align-items:center;justify-content:center;gap:6px;font-size:.85rem;color:var(--text-muted);background:#f9fafb;padding:8px 16px;border-radius:20px;display:inline-flex}.main-content{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;width:100%}.card{background:var(--card-bg);border-radius:16px;box-shadow:0 10px 25px -5px #0000001a,0 8px 10px -6px #0000001a;display:flex;flex-direction:row;overflow:hidden;padding:0;width:100%;max-width:1100px;margin:0 auto}.step-column{flex:1;padding:40px;border-right:1px solid var(--border-color);display:flex;flex-direction:column;min-width:0}.step-column:last-child{border-right:none}.step-column h2{font-size:1.25rem;display:flex;align-items:center;justify-content:center;gap:10px;margin-top:0;margin-bottom:25px;color:var(--text-main);white-space:nowrap}.action-column{background-color:#fafafa}.action-wrapper{display:flex;flex-direction:column;justify-content:center;flex:1;gap:20px}.file-input-wrapper{flex:1;display:flex;flex-direction:column}.file-input{display:none}.file-label{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;border:2px dashed var(--border-color);border-radius:12px;padding:20px;text-align:center;cursor:pointer;transition:all .2s;background-color:#f9fafb}.file-label:hover{border-color:var(--primary);background-color:#f5f3ff}.file-label.drag-active{border-color:var(--primary);background-color:#e0e7ff;transform:scale(1.02)}.file-placeholder,.file-selected{display:flex;flex-direction:column;align-items:center;gap:15px;color:var(--text-muted);width:100%}.file-selected{color:var(--primary);font-weight:600;position:relative}.file-selected .file-icon{width:48px;height:48px}.file-selected .file-name{word-break:break-all;max-width:100%;padding:0 20px}.remove-file-full-btn{margin-top:15px;width:100%;padding:12px;background-color:#fef2f2;color:#ef4444;border:1px solid #fee2e2;border-radius:8px;font-size:.95rem;font-weight:500;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s}.remove-file-full-btn:hover{background-color:#fee2e2;border-color:#fecaca;color:#dc2626}.input-group{display:flex;flex-direction:column;gap:8px;margin-bottom:15px;flex:1}.row{display:flex;gap:15px}.input-group label{font-weight:500;font-size:.9rem}.text-input{padding:10px 12px;border:1px solid var(--border-color);border-radius:8px;font-size:.95rem;transition:border-color .2s;width:100%;box-sizing:border-box}.text-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}.primary-button{width:100%;padding:18px;background-color:var(--primary);color:#fff;border:none;border-radius:12px;font-size:1.1rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:all .2s;box-shadow:0 4px 6px -1px #4f46e533}.primary-button:hover:not(:disabled){background-color:var(--primary-hover);transform:translateY(-1px);box-shadow:0 6px 8px -1px #4f46e54d}.primary-button:disabled{opacity:.7;cursor:not-allowed;transform:none;box-shadow:none}.animate-spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.success-message{text-align:center;background-color:#ecfdf5;border-radius:12px;padding:20px;border:1px solid #d1fae5;animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.success-message h3{color:#047857;margin-top:0;margin-bottom:15px}.download-button{display:flex;align-items:center;justify-content:center;gap:10px;background-color:#10b981;color:#fff;padding:15px;border-radius:8px;text-decoration:none;font-weight:600;transition:background-color .2s;width:100%;box-sizing:border-box}.download-button:hover{background-color:#059669;color:#fff}.error-message{background-color:#fef2f2;color:#b91c1c;padding:12px;border-radius:8px;font-size:.9rem;text-align:center}.footer{margin-top:auto;text-align:center;color:var(--text-muted);font-size:.9rem;padding-top:40px}.progress-container{width:100%;height:8px;background-color:#e5e7eb;border-radius:4px;overflow:hidden;margin-top:10px}.progress-bar{height:100%;background-color:var(--primary);transition:width .3s ease-out}.button-content{display:flex;align-items:center;justify-content:center;gap:10px}@media(max-width:900px){.card{flex-direction:column}.step-column{border-right:none;border-bottom:1px solid var(--border-color);padding:30px}.step-column:last-child{border-bottom:none}.user-guide-box{display:none}}