:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:#343a40;background-color:#f8f9fa;--blue: #007bff;--blue-hover: #0056b3;--green: #28a745;--card-bg: #ffffff;--border-color: #dee2e6;--shadow: 0 4px 12px rgba(0, 0, 0, .04);--text-dark: #212529;--text-light: #6c757d;--text-green: #28a745;--bg-green-light: #e9f7ec;--bg-green-dark: #208538;--bg-blue-light: #e6f2ff;--bg-purple-light: #f3e8ff;--chip-bg: #e7f1ff;--chip-text: #0056b3;--chip-gray-bg: #f1f3f5;--chip-gray-text: #495057;--bar-bg: #e9ecef}body{margin:0;background-color:var(--app-bg)}#root{display:flex;flex-direction:column;min-height:100vh}.app-wrapper{display:flex;flex:1}.app-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;background-color:var(--card-bg);border-bottom:1px solid var(--border-color);height:65px;box-sizing:border-box}.header-title{font-size:1.25rem;font-weight:600;color:var(--text-dark)}.btn{padding:.6rem 1rem;font-size:.9rem;font-weight:600;border:none;border-radius:8px;cursor:pointer;transition:background-color .2s ease;display:inline-flex;align-items:center;gap:.5rem}.btn-primary{background-color:var(--blue);color:#fff}.btn-primary:hover{background-color:var(--blue-hover)}.app-sidebar{width:280px;background-color:var(--card-bg);border-right:1px solid var(--border-color);padding:1.5rem;height:calc(100vh - 65px);box-sizing:border-box}.sidebar-title{font-size:1.1rem;font-weight:600;padding-bottom:1rem;margin:0 0 1rem}.form-group{margin-bottom:1.25rem}.form-group label{display:block;font-weight:500;margin-bottom:.5rem;font-size:.9rem;color:var(--text-light)}.form-input{width:100%;padding:10px 12px;font-size:.9rem;border:1px solid #ced4da;border-radius:8px;box-sizing:border-box}.main-content{flex:1;padding:2rem;overflow-y:auto;height:calc(100vh - 117px)}.workflow-footer{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;background-color:var(--card-bg);border-top:1px solid var(--border-color);height:52px;box-sizing:border-box}.workflow-node{background:var(--card-bg);border:1px solid var(--border-color);box-shadow:var(--shadow);border-radius:12px;margin-bottom:1.5rem}.node-header{display:flex;align-items:center;padding:1rem 1.25rem;border-bottom:1px solid var(--border-color);cursor:pointer}.node-icon{font-size:1.25rem;margin-right:1rem;background-color:var(--bg-green-light);color:var(--bg-green-dark);border-radius:8px;width:38px;height:38px;display:flex;align-items:center;justify-content:center}.node-title{font-size:1.15rem;font-weight:600;color:var(--text-dark);margin:0}.node-status{margin-left:.5rem;font-size:.8rem;font-weight:600;color:var(--text-green);background-color:var(--bg-green-light);padding:.25rem .5rem;border-radius:6px}.node-toggle{margin-left:auto;color:var(--text-light);font-size:1.5rem}.node-body{padding:1.5rem}.node-body h3{font-size:1rem;font-weight:600;color:var(--text-light);margin:0 0 .75rem;text-transform:uppercase;letter-spacing:.5px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-bottom:2rem}.stat-card{background:var(--app-bg);border:1px solid var(--border-color);padding:1rem;border-radius:8px}.stat-card-title{font-size:.9rem;color:var(--text-light);margin:0 0 .5rem}.stat-card-value{font-size:1.75rem;font-weight:600;color:var(--text-dark)}.keyword-category{margin-bottom:1.5rem}.keyword-chip{display:inline-block;padding:.5rem .75rem;margin:.25rem;border-radius:20px;font-size:.85rem;font-weight:500}.chip-blue{background-color:var(--chip-bg);color:var(--chip-text)}.chip-gray{background-color:var(--chip-gray-bg);color:var(--chip-gray-text)}.content-rewrite-card{background-color:var(--app-bg);border:1px solid var(--border-color);border-radius:8px;padding:1.5rem}.content-rewrite-card h2{font-size:1.25rem;margin:0 0 .5rem;color:var(--text-dark)}.content-rewrite-card p{margin:0 0 1rem}.content-rewrite-card ul{padding-left:20px;margin:0}.content-footer{display:flex;justify-content:space-between;align-items:center;margin-top:1.5rem}.seo-score{font-weight:600;color:var(--text-dark)}.metadata-card{background-color:var(--app-bg);border:1px solid var(--border-color);border-radius:8px;padding:1.5rem;margin-bottom:1rem}.metadata-card h3{margin:0 0 .75rem}.metadata-card p{font-size:1rem;color:var(--text-dark);margin:0}.qa-table{width:100%;border-collapse:collapse}.qa-table th,.qa-table td{text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--border-color)}.qa-table th{font-weight:600;font-size:.9rem;color:var(--text-light)}.status-pass{color:var(--text-green);font-weight:600}.scores-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}.score-card{background:var(--app-bg);border:1px solid var(--border-color);border-radius:8px;padding:1.5rem}.score-card-title{font-size:1rem;font-weight:600;color:var(--text-light);margin:0 0 .5rem}.score-card-value{font-size:2.5rem;font-weight:700;color:var(--text-dark)}.score-card-bar{height:8px;border-radius:4px;background-color:var(--bar-bg);margin-top:1rem;overflow:hidden}.bar-inner{height:100%;border-radius:4px}.bar-blue{background-color:var(--blue)}.bar-green{background-color:var(--green)}.bar-purple{background-color:#6f42c1}.loading-container{padding:2rem;text-align:center}.loading-spinner{border:4px solid #f3f3f3;border-top:4px solid var(--blue);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:1rem auto}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-message{color:#721c24;background-color:#f8d7da;border:1px solid #f5c6cb;border-radius:8px;padding:1rem}