.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:200px;background:#161b22;border-right:1px solid #30363d;display:flex;flex-direction:column;padding:16px 0;flex-shrink:0}.logo-row{padding:0 16px 16px;border-bottom:1px solid #30363d;margin-bottom:8px}.logo{font-size:14px;font-weight:700;color:#58a6ff;margin-bottom:10px}.logout-button{width:100%;height:30px;border-radius:6px;border:1px solid #30363d;background:#21262d;color:#8b949e;cursor:pointer;font-size:12px}.logout-button:hover{background:#30363d;color:#e6edf3}.nav-item{display:block;padding:10px 16px;color:#8b949e;text-decoration:none;font-size:14px;transition:all .15s;border-left:3px solid transparent}.nav-item:hover{color:#e6edf3;background:#1f2937}.nav-item.active{color:#58a6ff;background:#1f2937;border-left-color:#58a6ff}.main-content{flex:1;overflow-y:auto;padding:24px}.card{background:#161b22;border:1px solid #30363d;border-radius:8px;padding:20px;margin-bottom:16px}.card-title{font-size:16px;font-weight:600;color:#e6edf3;margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid #30363d}.btn{padding:8px 20px;border-radius:6px;border:none;cursor:pointer;font-size:14px;font-weight:500;transition:all .15s}.btn-primary{background:#238636;color:#fff}.btn-primary:hover{background:#2ea043}.btn-primary:disabled{background:#2d333b;color:#8b949e;cursor:not-allowed}.btn-danger{background:#da3633;color:#fff}.btn-danger:hover{background:#f85149}.btn-secondary{background:#21262d;color:#e6edf3;border:1px solid #30363d}.btn-secondary:hover{background:#30363d}.input{background:#0d1117;border:1px solid #30363d;border-radius:6px;color:#e6edf3;padding:8px 12px;font-size:14px;width:100%}.input:focus{outline:none;border-color:#58a6ff}label{font-size:13px;color:#8b949e;display:block;margin-bottom:4px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}.metric-box{background:#0d1117;border:1px solid #30363d;border-radius:6px;padding:12px 16px;text-align:center}.metric-value{font-size:24px;font-weight:700;color:#58a6ff}.metric-label{font-size:12px;color:#8b949e;margin-top:4px}.positive{color:#3fb950}.negative{color:#f85149}.neutral{color:#8b949e}.tag{display:inline-block;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600}.tag-green{background:#1a3a1a;color:#3fb950;border:1px solid #3fb950}.tag-red{background:#3a1a1a;color:#f85149;border:1px solid #f85149}.tag-gray{background:#21262d;color:#8b949e;border:1px solid #30363d}.loading{color:#8b949e;font-size:14px;padding:40px;text-align:center}.auth-shell{min-height:100vh;background:#0d1117;display:flex;align-items:center;justify-content:center;padding:24px}.login-panel{width:100%;max-width:360px;background:#161b22;border:1px solid #30363d;border-radius:8px;padding:24px}.login-title{color:#58a6ff;font-size:20px;font-weight:700;margin-bottom:4px}.login-subtitle{color:#8b949e;font-size:13px;margin-bottom:24px}.login-panel .input{margin-bottom:14px}.login-error{color:#f85149;font-size:13px;margin:0 0 14px}.login-button{width:100%;margin-top:4px}