.navigation{background-color:#262730;padding:1rem 0;margin-bottom:2rem}.nav-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.nav-title{font-size:1.75rem;margin:0;color:#fff}.nav-user{display:flex;align-items:center;color:#b4b4c8;font-weight:500}.nav-tabs{display:flex;gap:.5rem;margin-bottom:1rem}.nav-tab{padding:.75rem 1.5rem;background-color:#1e1e2e;border:none;color:#b4b4c8;border-radius:.5rem;cursor:pointer;font-weight:600;transition:all .2s}.nav-tab.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.nav-content{display:flex;gap:.5rem;flex-wrap:wrap}.nav-btn{padding:.75rem 1.5rem;background-color:#1e1e2e;color:#fafafa;text-decoration:none;border-radius:.5rem;font-weight:500;transition:all .2s}.nav-btn:hover{background:linear-gradient(135deg,#667eea,#764ba2);transform:translateY(-2px)}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:#0e1117}.login-card{width:100%;max-width:450px;background-color:#262730;border-radius:1rem;box-shadow:0 10px 40px #0000004d}.auth-tabs{display:flex;gap:1rem;margin-bottom:2rem}.tab{flex:1;padding:.75rem;border:none;background-color:#1e1e2e;color:#b4b4c8;border-radius:.5rem;cursor:pointer;font-weight:600;transition:all .2s}.tab.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.form-group{margin-bottom:1.5rem}.error-message{background-color:#dc354520;border:1px solid #dc3545;color:#ff6b6b;padding:.75rem;border-radius:.5rem;margin-top:1rem}.strategy-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}.chart-container{width:100%;margin:2rem 0}*{margin:0;padding:0;box-sizing:border-box}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:#0e1117;color:#fafafa}#root{min-height:100vh}.container{max-width:1400px;margin:0 auto;padding:0 2rem}.purple-gradient{background:linear-gradient(135deg,#667eea,#764ba2)}.btn{padding:.75rem 1.5rem;border-radius:.5rem;border:none;cursor:pointer;font-weight:600;transition:all .2s}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 20px #667eea4d}.card{background-color:#262730;border-radius:1rem;padding:1.5rem;box-shadow:0 4px 6px #0000001a}input,select{background-color:#1e1e2e;border:1px solid #4a4a5e;color:#fafafa;padding:.75rem;border-radius:.5rem;width:100%;font-size:1rem}input:focus,select:focus{outline:none;border-color:#667eea}label{display:block;margin-bottom:.5rem;font-weight:500;color:#b4b4c8}h1,h2,h3,h4{color:#fafafa}.metric{background-color:#1e1e2e;padding:1rem;border-radius:.5rem;text-align:center}.metric-label{font-size:.875rem;color:#b4b4c8;margin-bottom:.5rem}.metric-value{font-size:1.5rem;font-weight:700;color:#fafafa}