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#64748b;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--transition: all .2s ease}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--color-bg);color:var(--color-text);line-height:1.6}#root{min-height:100vh}.app-container{display:flex;min-height:100vh}.main-content{flex:1;display:flex;flex-direction:column}.header{background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);padding:var(--spacing-md) var(--spacing-lg);display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow-sm)}.header-title{font-size:1.5rem;font-weight:700;color:var(--color-text)}.header-subtitle{font-size:.875rem;color:var(--color-text-light);margin-left:var(--spacing-sm)}.sidebar{width:260px;background:var(--color-bg-secondary);border-right:1px solid var(--color-border);padding:var(--spacing-lg) 0;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}.sidebar-brand{padding:0 var(--spacing-md);margin-bottom:var(--spacing-lg)}.sidebar-brand h1{font-size:1.5rem;font-weight:700;color:var(--color-primary)}.sidebar-nav{list-style:none}.sidebar-nav-item{padding:var(--spacing-sm) var(--spacing-md);cursor:pointer;transition:var(--transition);color:var(--color-text);font-weight:500;border-left:3px solid transparent}.sidebar-nav-item:hover{background:var(--color-bg);border-left-color:var(--color-primary)}.sidebar-nav-item.active{background:var(--color-bg);border-left-color:var(--color-primary);color:var(--color-primary)}.content{flex:1;padding:var(--spacing-lg);overflow-y:auto}.content-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:var(--spacing-lg);margin-bottom:var(--spacing-lg)}@media(max-width:1200px){.content-grid{grid-template-columns:1fr}}.card{background:var(--color-bg-secondary);border-radius:var(--radius-lg);padding:var(--spacing-md);box-shadow:var(--shadow-md);border:1px solid var(--color-border);transition:var(--transition)}.card:hover{box-shadow:var(--shadow-lg)}.card-header{margin-bottom:var(--spacing-md)}.card-title{font-size:1.125rem;font-weight:600;color:var(--color-text)}.card-subtitle{font-size:.875rem;color:var(--color-text-light);margin-top:var(--spacing-xs)}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md);margin-bottom:var(--spacing-lg)}.metric-card{background:var(--color-bg-secondary);border-radius:var(--radius-md);padding:var(--spacing-md);box-shadow:var(--shadow-md);border:1px solid var(--color-border);transition:var(--transition)}.metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.metric-label{font-size:.875rem;color:var(--color-text-light);font-weight:500;margin-bottom:var(--spacing-xs);text-transform:uppercase;letter-spacing:.5px}.metric-value{font-size:2rem;font-weight:700;color:var(--color-text);margin-bottom:var(--spacing-xs)}.metric-subvalue{font-size:.875rem;color:var(--color-text-light)}.metric-trend{display:inline-block;padding:.25rem .5rem;border-radius:var(--radius-sm);font-size:.75rem;font-weight:600;margin-top:var(--spacing-xs)}.metric-trend.up{background:#d1fae5;color:#065f46}.metric-trend.down{background:#fee2e2;color:#991b1b}.ai-chat{display:flex;flex-direction:column;height:100%;max-height:500px}.chat-messages{flex:1;overflow-y:auto;padding:.5rem;margin-bottom:.4rem;background:var(--color-bg);border-radius:var(--radius-md);min-height:0}.chat-message{margin-bottom:.6rem;padding:.6rem;border-radius:var(--radius-md);max-width:90%;font-size:.85rem}.chat-message.user{background:var(--color-primary);color:#fff;margin-left:auto;text-align:right}.chat-message.ai{background:var(--color-bg-secondary);border:1px solid var(--color-border);color:var(--color-text)}.chat-message.ai pre{white-space:pre-wrap;word-wrap:break-word;font-family:inherit}.chat-message-label{font-size:.7rem;font-weight:600;margin-bottom:.4rem;opacity:.8}.chat-input-container{display:flex;gap:.5rem;align-items:flex-end}.chat-input{flex:1;padding:.6rem .75rem;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:.9rem;font-family:inherit;resize:none;min-height:38px;max-height:120px;transition:var(--transition)}.chat-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb1a}.btn{padding:var(--spacing-sm) var(--spacing-md);border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-xs)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--color-secondary);color:#fff}.btn-secondary:hover:not(:disabled){background:#475569}.loading{display:flex;align-items:center;justify-content:center;padding:var(--spacing-xl);color:var(--color-text-light)}.loading-spinner{border:3px solid var(--color-border);border-top:3px solid var(--color-primary);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin-right:var(--spacing-sm)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-md)}.text-muted{color:var(--color-text-light)}.text-center{text-align:center}.mb-0{margin-bottom:0}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}