: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 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.5rem;font-size:1.1rem}.file-label{display:inline-block;padding:.75rem 1.5rem;background:#667eea;color:#fff;border-radius:8px;cursor:pointer;font-weight:500;transition:background .3s ease;margin:.5rem 0}.file-label:hover{background:#5568d3}.file-types{color:#a0aec0;font-size:.875rem;margin:.5rem 0 0}.file-info{display:flex;align-items:center;gap:1rem;padding:1rem;background:#fff;border-radius:8px}.file-icon{font-size:2.5rem}.file-details{flex:1;text-align:left}.file-name{margin:0;font-weight:600;color:#2d3748;word-break:break-all}.file-size{margin:.25rem 0 0;color:#718096;font-size:.875rem}.change-file-btn{padding:.5rem 1rem;background:#e2e8f0;color:#4a5568;border:none;border-radius:6px;cursor:pointer;font-weight:500;transition:background .3s ease}.change-file-btn:hover{background:#cbd5e0}.change-file-btn:disabled{opacity:.5;cursor:not-allowed}.credential-input-container{margin-top:1.5rem;text-align:left}.credential-label{display:block;font-weight:600;color:#2d3748;margin-bottom:.5rem;font-size:1rem}.credential-label .required{color:#e53e3e;margin-left:.25rem}.credential-input{width:100%;padding:.75rem 1rem;border:2px solid #cbd5e0;border-radius:8px;font-size:1rem;transition:border-color .3s ease;box-sizing:border-box}.credential-input:focus{outline:none;border-color:#667eea}.credential-input.error{border-color:#e53e3e}.credential-input:disabled{background:#edf2f7;cursor:not-allowed}.credential-error{color:#e53e3e;font-size:.875rem;margin:.5rem 0 0}.credential-hint{color:#718096;font-size:.875rem;margin:.5rem 0 0}.upload-btn{width:100%;padding:1rem 2rem;margin-top:1.5rem;background:#48bb78;color:#fff;border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:background .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem}.upload-btn:hover{background:#38a169}.upload-btn:disabled{background:#a0aec0;cursor:not-allowed}.status-container{text-align:center;padding:2rem 0}.status-container h2{font-size:1.75rem;margin:1rem 0 .5rem;color:#1a202c}.status-container p{color:#718096;font-size:1rem;margin:0}.status-container.error .error-icon{font-size:4rem;margin-bottom:1rem}.status-container.success .success-icon{font-size:4rem;color:#48bb78;font-weight:700;margin-bottom:1rem;display:flex;align-items:center;justify-content:center;width:80px;height:80px;margin:0 auto 1rem;background:#f0fff4;border-radius:50%}.spinner{width:48px;height:48px;border:4px solid #e2e8f0;border-top-color:#667eea;border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 1rem}.spinner.small{width:20px;height:20px;border-width:3px;margin:0}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:640px){.container{padding:2rem 1.5rem}.upload-container h1{font-size:1.5rem}.dropzone{padding:2rem 1rem}}@media(prefers-color-scheme:dark){.container{background:#2d3748;color:#e2e8f0}.upload-container h1,.status-container h2{color:#f7fafc}.subtitle,.status-container p{color:#cbd5e0}.dropzone{background:#1a202c;border-color:#4a5568}.dropzone:hover{background:#2d3748;border-color:#667eea}.dropzone.active{background:#2c5282}.dropzone.has-file{border-color:#48bb78;background:#22543d}.file-info{background:#1a202c}.file-name{color:#e2e8f0}.change-file-btn{background:#4a5568;color:#e2e8f0}.change-file-btn:hover{background:#718096}}