:root{--font-size-sm: .875rem;--error-bg: #f8d7da;--error-border: #f5c6cb;--error-text: #721c24;--danger: #dc3545;--danger-hover: #c82333;font-family:Inter,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;min-width:320px;min-height:100vh}h1{font-size:3rem;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1rem;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}}.document-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.document-item{border:1px solid #ddd;border-radius:8px;padding:15px;background-color:#f9f9f9;transition:box-shadow .2s;position:relative}.document-item:hover{box-shadow:0 4px 8px #0000001a}.document-link{text-decoration:none;color:inherit;display:block}.document-link h3{margin-bottom:10px;color:#333}.document-preview{color:#666;font-size:var(--font-size-sm);line-height:1.4}.delete-document-icon{position:absolute;top:10px;right:10px;background-color:transparent;color:#999;border:none;border-radius:4px;padding:6px 8px;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s,color .2s}.document-item:hover .delete-document-icon{opacity:1}.delete-document-icon:hover{color:var(--danger)}.document-detail-page{padding:20px;margin:0 auto}.document-header{margin-bottom:30px}.back-link{display:inline-flex;align-items:center;gap:8px;color:#007bff;text-decoration:none;margin-bottom:20px}.back-link:hover{text-decoration:underline}.document-header h1{margin-bottom:20px;color:#333}.prompt-selector{margin-bottom:20px}.prompt-selector label{display:block;margin-bottom:10px;font-weight:700}.prompt-selector select{padding:8px;border:1px solid #ddd;border-radius:4px;font-size:var(--font-size-sm);min-width:200px}.document-content{background-color:#f9f9f9;padding:20px;border-radius:8px;border:1px solid #ddd}.line-container{margin-bottom:20px;border-bottom:1px solid #eee;padding-bottom:20px}.line-container:last-child{border-bottom:none;margin-bottom:0}.line-content{display:flex;align-items:flex-start;gap:15px;margin-bottom:10px}.line-text{flex:1;margin:0;padding:10px;background-color:#fff;border:1px solid #ddd;border-radius:4px;font-size:1rem;line-height:1.5}.explain-button{padding:8px 16px;background-color:#28a745;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:var(--font-size-sm);white-space:nowrap}.explain-button:hover{background-color:#218838}.explain-button:disabled{background-color:#6c757d;cursor:not-allowed}.explanations-container{margin-top:15px}.explanations-container h4{margin-bottom:10px;color:#333;font-size:1rem}.explanation-box{background-color:#fff;border:1px solid #ddd;border-radius:4px;padding:15px;margin-bottom:10px;position:relative}.delete-explanation-button{position:absolute;top:10px;right:10px;background-color:transparent;color:#999;border:none;border-radius:4px;padding:6px 8px;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s,color .2s}.explanation-box:hover .delete-explanation-button{opacity:1}.delete-explanation-button:hover{color:var(--danger)}.explanation-error{background-color:var(--error-bg);border:1px solid var(--error-border);color:var(--error-text);padding:10px 15px;border-radius:4px;margin-top:10px;display:flex;align-items:center;gap:10px}.retry-button{padding:4px 12px;background-color:var(--danger);color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.8125rem}.retry-button:hover{background-color:var(--danger-hover)}.document-uploader-container{max-width:600px;margin:0 auto;padding:20px}.form-group{margin-bottom:10px}.form-label{display:block;font-weight:700}.form-input,.form-textarea{width:100%;padding:8px}.upload-button{padding:10px 20px;background-color:#007bff;color:#fff;border:none;cursor:pointer;font-weight:700}.upload-button:disabled{background-color:#ccc;cursor:not-allowed}.message{margin-top:10px;color:green;font-weight:700}.register-form{max-width:400px;margin:2rem auto;padding:2rem;border:1px solid #ddd;border-radius:8px;background:#fff;box-shadow:0 2px 4px #0000001a}.register-form h2{margin:0 0 1.5rem;color:#333;text-align:center}.login-form{max-width:400px;margin:2rem auto;padding:2rem;border:1px solid #ddd;border-radius:8px;background:#fff;box-shadow:0 2px 4px #0000001a}.login-form h2{margin:0 0 1.5rem;color:#333;text-align:center}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.25rem;font-weight:500;color:#555}.form-group input{width:100%;padding:.5rem;border:1px solid #ccc;border-radius:4px;font-size:1rem;transition:border-color .3s}.form-group input:focus{outline:none;border-color:#1976d2}button[type=submit]{width:100%;padding:.75rem;background:#1976d2;color:#fff;border:none;border-radius:4px;font-size:1rem;font-weight:500;cursor:pointer;transition:background-color .3s}button[type=submit]:hover:not(:disabled){background:#1565c0}.auth-link{text-align:center;margin-top:1rem;color:#666}.auth-link a{color:#1976d2;text-decoration:none}.auth-link a:hover{text-decoration:underline}.form-error{margin:0 0 1rem;padding:.75rem;border-radius:4px;background:var(--error-bg);color:var(--error-text);border:1px solid var(--error-border)}.logout-button{padding:.5rem 1rem;background:#d32f2f;color:#fff;border:none;border-radius:4px;font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:background-color .3s}.logout-button:hover{background:#b71c1c}.logout-button:focus{outline:2px solid #d32f2f;outline-offset:2px}.layout{min-height:100vh;display:flex;flex-direction:column}.layout-header{background:#f8f9fa;border-bottom:1px solid #dee2e6;padding:0 20px}.header-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;height:64px}.header-content h1{margin:0;color:#333;font-size:1.5rem}.header-nav{display:flex;align-items:center;gap:20px}.nav-link{text-decoration:none;color:#666;font-weight:500;padding:8px 16px;border-radius:4px;transition:background-color .2s}.nav-link:hover{background-color:#e9ecef;color:#333}.nav-link.active{background-color:#007bff;color:#fff}.layout-main{flex:1;padding:20px;max-width:1200px;margin:0 auto;width:100%;box-sizing:border-box}.app{min-height:100vh;background-color:#f5f5f5;width:100%}