*{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}#root{width:100%;min-height:100vh}.logo{height:64px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;font-weight:700;border-bottom:1px solid rgba(255,255,255,.1)}.logo h2{margin:0;color:#fff}.header-content{display:flex;justify-content:space-between;align-items:center;height:100%}.header-right{padding-right:24px}.user-info{display:flex;align-items:center;gap:12px;cursor:pointer;padding:8px 12px;border-radius:4px;transition:background-color .3s}.user-info:hover{background-color:#0000000a}.user-name{font-weight:500}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.login-card{width:100%;max-width:400px;box-shadow:0 8px 24px #00000026;border-radius:8px}.login-header{text-align:center;margin-bottom:8px}.login-header h2{margin:0;color:#1890ff;font-size:24px;font-weight:600}.login-header p{margin:8px 0 0;color:#8c8c8c;font-size:14px}.dashboard{padding:16px;background:#f0f2f5;min-height:100vh}.dashboard-title{margin-bottom:24px!important;font-size:28px;font-weight:600}.stat-card{border-radius:12px;box-shadow:0 4px 12px #00000008;border:none;transition:transform .3s ease,box-shadow .3s ease}.stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 16px #00000014}.chart-card{border-radius:12px;box-shadow:0 4px 12px #0000000d;border:none;overflow:hidden}.recharts-wrapper{margin:0 auto}.dashboard-loading,.dashboard-error{display:flex;flex-direction:column;justify-content:center;align-items:center;height:60vh;font-size:18px}.loading-spinner{border:4px solid rgba(0,0,0,.1);width:36px;height:36px;border-radius:50%;border-left-color:#1890ff;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.App{width:100%;min-height:100vh}