.sidebar{width:260px;background:linear-gradient(180deg,#1a73e8 0%,#1557b0 100%);color:#fff;display:flex;flex-direction:column;box-shadow:2px 0 10px #0000001a}.sidebar-header{padding:24px 20px;border-bottom:1px solid rgba(255,255,255,.1)}.sidebar-title{font-size:24px;font-weight:600;margin:0 0 4px}.sidebar-subtitle{font-size:12px;opacity:.8;margin:0}.sidebar-nav{flex:1;padding:16px 8px;overflow-y:auto}.nav-item{width:100%;display:flex;align-items:center;gap:12px;padding:12px 16px;background:none;border:none;color:#fffc;cursor:pointer;border-radius:8px;transition:all .2s;margin-bottom:4px;font-size:15px;text-align:left}.nav-item:hover{background:rgba(255,255,255,.1);color:#fff}.nav-item.active{background:rgba(255,255,255,.2);color:#fff;font-weight:500}.nav-icon{font-size:20px;width:24px;text-align:center}.nav-label{flex:1}.dark-mode-toggle{background:rgba(255,255,255,.1);border:none;color:#fff;padding:8px;border-radius:8px;cursor:pointer;transition:all .2s}.dark-mode-toggle:hover{background:rgba(255,255,255,.2)}.intro-view{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}.intro-hero{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:60px 24px;text-align:center}.intro-hero h1{font-size:48px;margin:0 0 16px}.intro-subtitle{font-size:24px;margin:0 0 16px;opacity:.95}.intro-description{font-size:16px;max-width:700px;margin:0 auto;opacity:.9;line-height:1.6}.view-content{background:#f8f9fa;padding:40px 24px}.features-title{text-align:center;font-size:32px;margin-bottom:40px;color:#1a1a1a}.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;margin-bottom:60px}.feature-card{background:white;border-radius:12px;padding:24px;box-shadow:0 2px 8px #0000001a;transition:transform .2s}.feature-card:hover{transform:translateY(-4px);box-shadow:0 4px 16px #00000026}.feature-icon{font-size:48px;margin-bottom:16px}.feature-card h3{font-size:20px;margin:0 0 12px;color:#1a1a1a}.feature-description{color:#666;font-size:14px;line-height:1.6;margin-bottom:16px}.feature-details{list-style:none;padding:0;margin:0}.feature-details li{font-size:13px;color:#555;padding:4px 0}.quick-start{background:white;border-radius:12px;padding:40px;margin-bottom:40px}.quick-start h2{text-align:center;font-size:28px;margin-bottom:32px}.quick-start-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}.step{text-align:center}.step-number{width:50px;height:50px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;margin:0 auto 16px}.step h4{font-size:18px;margin:0 0 8px}.step p{font-size:14px;color:#666;margin:0}.use-cases{background:white;border-radius:12px;padding:40px}.use-cases h2{text-align:center;font-size:28px;margin-bottom:32px}.use-cases-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}.use-case{padding:20px;border:2px solid #f0f0f0;border-radius:8px;transition:border-color .2s}.use-case:hover{border-color:#667eea}.use-case h4{font-size:16px;margin:0 0 8px;color:#1a1a1a}.use-case p{font-size:14px;color:#666;margin:0;line-height:1.5}.documents-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}.documents-list{display:flex;flex-direction:column;gap:12px}.document-card{background:white;border-radius:12px;padding:20px;cursor:pointer;transition:all .2s;box-shadow:0 1px 3px #0000001a;position:relative}.document-card:hover{box-shadow:0 4px 12px #00000026;transform:translateY(-2px)}.doc-icon{font-size:48px;margin-bottom:12px}.doc-info h3{font-size:16px;font-weight:500;margin:0 0 8px;color:#1a1a1a}.doc-meta{font-size:13px;color:#666;margin:0 0 4px}.doc-date{font-size:12px;color:#999;margin:0}.star{position:absolute;top:16px;right:16px;font-size:20px}.modal-large{max-width:900px;width:95%}.document-preview{margin:20px 0}.projects-view .project-card{background:white;border-radius:8px;padding:20px;box-shadow:0 1px 3px #0000001a}.project-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.project-header h3{margin:0;font-size:18px}.project-description{color:#666;font-size:14px;margin-bottom:16px}.project-stats{display:flex;justify-content:space-between;font-size:13px;color:#666;margin-bottom:16px;padding-top:12px;border-top:1px solid #f0f0f0}.project-actions{display:flex;gap:8px}.btn-sm{padding:6px 12px;font-size:13px}.customer-card{background:white;border-radius:8px;padding:20px;box-shadow:0 1px 3px #0000001a}.customer-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.customer-header h3{margin:0;font-size:18px}.company-badge{background:#f0f0f0;padding:4px 12px;border-radius:12px;font-size:12px;font-weight:600}.customer-info{margin-bottom:12px}.customer-info p{margin:6px 0;font-size:14px;color:#666}.customer-notes{font-size:13px;color:#666;font-style:italic;margin-bottom:12px;padding:8px;background:#f8f9fa;border-radius:4px}.customer-stats{font-size:13px;color:#666;margin-bottom:12px;padding-top:12px;border-top:1px solid #f0f0f0}.customer-actions{display:flex;gap:8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:#f5f5f5;overflow:hidden}.app{display:flex;height:100vh;width:100%}.main-content{flex:1;overflow-y:auto;background:#f8f9fa}.view{height:100%;display:flex;flex-direction:column}.view-header{background:white;padding:24px;border-bottom:1px solid #e0e0e0;display:flex;justify-content:space-between;align-items:center}.view-header h1{font-size:28px;font-weight:600;color:#1a1a1a;margin:0}.view-content{flex:1;padding:24px;overflow-y:auto}.btn{padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:8px}.btn-primary{background:#1a73e8;color:#fff}.btn-primary:hover{background:#1557b0}.btn-secondary{background:#f0f0f0;color:#333}.btn-secondary:hover{background:#e0e0e0}.btn-danger{background:#dc3545;color:#fff}.btn-danger:hover{background:#c82333}.card{background:white;border-radius:12px;padding:20px;box-shadow:0 1px 3px #0000001a}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}.grid-4{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:#333}.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;font-family:inherit}.form-group textarea{min-height:100px;resize:vertical}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:white;border-radius:12px;padding:24px;max-width:600px;width:90%;max-height:90vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.modal-header h2{font-size:24px;margin:0}.modal-close{background:none;border:none;font-size:24px;cursor:pointer;color:#666}.modal-footer{display:flex;gap:12px;justify-content:flex-end;margin-top:24px}.loading{display:flex;align-items:center;justify-content:center;padding:40px;color:#666}.empty-state{text-align:center;padding:60px 20px;color:#666}.empty-state-icon{font-size:64px;margin-bottom:16px;opacity:.5}.empty-state h3{font-size:20px;margin-bottom:8px;color:#333}.empty-state p{font-size:14px;margin-bottom:24px}body.dark-mode{background:#1a1a1a;color:#e0e0e0}.dark-mode .main-content{background:#1a1a1a}.dark-mode .view-header{background:#2d2d2d;border-bottom-color:#404040}.dark-mode .view-header h1{color:#fff}.dark-mode .card{background:#2d2d2d;box-shadow:0 1px 3px #0000004d}.dark-mode .btn-secondary{background:#404040;color:#e0e0e0}.dark-mode .btn-secondary:hover{background:#505050}.dark-mode .form-group input,.dark-mode .form-group textarea,.dark-mode .form-group select{background:#2d2d2d;border-color:#404040;color:#e0e0e0}.dark-mode .modal{background:#2d2d2d}.dark-mode .modal-header h2{color:#fff}.dark-mode .modal-close{color:#e0e0e0}.dark-mode .empty-state{color:#a0a0a0}.dark-mode .empty-state h3{color:#e0e0e0}.dark-mode .filters-bar{background:#2d2d2d;border-bottom-color:#404040}.dark-mode .search-input,.dark-mode .filter-select{background:#1a1a1a;border-color:#404040;color:#e0e0e0}.dark-mode .document-card,.dark-mode .project-card,.dark-mode .customer-card{background:#2d2d2d}.dark-mode .document-card:hover,.dark-mode .project-card:hover,.dark-mode .customer-card:hover{background:#353535}.dark-mode .doc-info h3,.dark-mode .project-header h3,.dark-mode .customer-header h3{color:#fff}.dark-mode .doc-meta,.dark-mode .doc-date,.dark-mode .project-description,.dark-mode .customer-info p{color:#a0a0a0}.dark-mode .sidebar{background:linear-gradient(180deg,#1557b0 0%,#0d3a7a 100%)}