:root{--color-primary: #1a73e8;--color-primary-light: #e8f0fe;--color-primary-dark: #1557b0;--color-success: #0d9488;--color-success-light: #ccfbf1;--color-warning: #f59e0b;--color-warning-light: #fef3c7;--color-danger: #dc2626;--color-danger-light: #fee2e2;--color-text: #1f2937;--color-text-secondary: #6b7280;--color-text-muted: #9ca3af;--color-bg: #f9fafb;--color-bg-white: #ffffff;--color-border: #e5e7eb;--color-border-light: #f3f4f6;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.1);--shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;--sidebar-width: 240px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.6}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-success{background:var(--color-success);color:#fff}.btn-danger{background:var(--color-danger);color:#fff}.btn-outline{background:transparent;border:1px solid var(--color-border);color:var(--color-text)}.btn-outline:hover:not(:disabled){background:var(--color-border-light)}.btn-sm{padding:4px 10px;font-size:12px}.btn-lg{padding:12px 24px;font-size:16px}.card{background:var(--color-bg-white);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);padding:20px}.card-header{font-size:16px;font-weight:600;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--color-border-light)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--color-bg-white);border-radius:var(--radius-md);padding:20px;border:1px solid var(--color-border)}.stat-card .stat-label{font-size:13px;color:var(--color-text-secondary);margin-bottom:4px}.stat-card .stat-value{font-size:28px;font-weight:700;color:var(--color-text)}.form-group{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:500;color:var(--color-text-secondary);margin-bottom:4px}.form-input,.form-select,.form-textarea{width:100%;padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:14px;color:var(--color-text);background:var(--color-bg-white);transition:border-color .15s}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.form-textarea{min-height:80px;resize:vertical}.form-row{display:flex;gap:12px}.form-row>*{flex:1}.table-wrapper{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:14px}th{text-align:left;padding:10px 12px;background:var(--color-border-light);font-weight:600;font-size:13px;color:var(--color-text-secondary);border-bottom:1px solid var(--color-border)}td{padding:10px 12px;border-bottom:1px solid var(--color-border-light)}tr:hover td{background:#f8fafc}.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;font-weight:500}.badge-success{background:var(--color-success-light);color:var(--color-success)}.badge-warning{background:var(--color-warning-light);color:#92400e}.badge-danger{background:var(--color-danger-light);color:var(--color-danger)}.badge-info{background:var(--color-primary-light);color:var(--color-primary)}.badge-muted{background:var(--color-border-light);color:var(--color-text-muted)}.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px}.pagination button{padding:6px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-white);cursor:pointer;font-size:13px}.pagination button:disabled{opacity:.4;cursor:not-allowed}.pagination .page-info{font-size:13px;color:var(--color-text-secondary)}.tabs{display:flex;gap:0;border-bottom:2px solid var(--color-border);margin-bottom:20px}.tab{padding:10px 20px;font-size:14px;font-weight:500;color:var(--color-text-secondary);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s}.tab:hover{color:var(--color-text)}.tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.empty-state{text-align:center;padding:40px 20px;color:var(--color-text-muted)}.empty-state .empty-icon{font-size:48px;margin-bottom:12px}.empty-state .empty-text{font-size:14px}.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{padding:12px 20px;border-radius:var(--radius-sm);color:#fff;font-size:14px;box-shadow:var(--shadow-lg);animation:slideIn .3s ease}.toast-success{background:var(--color-success)}.toast-error{background:var(--color-danger)}.toast-warning{background:var(--color-warning)}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.loading{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--color-text-muted)}.spinner{width:24px;height:24px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .6s linear infinite;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--color-bg-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);max-width:640px;width:90%;max-height:80vh;overflow-y:auto;padding:24px}.modal-header{font-size:18px;font-weight:600;margin-bottom:16px}.modal-footer{display:flex;justify-content:flex-end;gap:8px;margin-top:20px;padding-top:16px;border-top:1px solid var(--color-border-light)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2)}.login-card{background:var(--color-bg-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:40px;width:400px;max-width:90%}.login-title{font-size:24px;font-weight:700;text-align:center;margin-bottom:8px}.login-subtitle{font-size:14px;color:var(--color-text-secondary);text-align:center;margin-bottom:24px}.login-error{background:var(--color-danger-light);color:var(--color-danger);padding:8px 12px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:16px}@media(max-width:768px){.stat-grid{grid-template-columns:repeat(2,1fr);gap:12px}.stat-card{padding:16px}.stat-card .stat-value{font-size:22px}.form-row{flex-direction:column}.form-row>*{flex:none;width:100%}.table-wrapper{-webkit-overflow-scrolling:touch}table{font-size:13px}th,td{padding:8px 10px}.modal-overlay{align-items:flex-end}.modal{width:100%;max-width:100%;max-height:90vh;border-radius:var(--radius-lg) var(--radius-lg) 0 0}.btn{min-height:40px}.btn-sm{min-height:32px;padding:6px 12px}.card{padding:16px}.card-header{font-size:15px;margin-bottom:12px;padding-bottom:10px}.pagination{gap:4px}.pagination button{padding:6px 10px;font-size:12px}.tabs{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tab{padding:8px 16px;font-size:13px;white-space:nowrap}.toast-container{top:12px;right:12px;left:12px}.login-card{padding:24px}}@media(max-width:480px){.stat-grid{grid-template-columns:1fr}}