:root{--bg: #f5f6f8;--surface: #ffffff;--border: #dde1e6;--text-primary: #1a1d23;--text-secondary: #5b6270;--text-muted: #8b909c;--accent: #1d6fa5;--accent-hover: #185f8f;--success: #1d9e75;--success-bg: #e1f5ee;--warning: #e0a020;--warning-bg: #faeeda;--danger: #d33;--danger-bg: #fcebeb;--radius: 8px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text-primary);font-size:14px}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--surface);border-right:1px solid var(--border);padding:20px 0;display:flex;flex-direction:column}.sidebar-header{padding:0 20px 20px;font-size:16px;font-weight:600;border-bottom:1px solid var(--border);margin-bottom:12px}.sidebar-link{display:block;padding:10px 20px;color:var(--text-secondary);text-decoration:none;font-weight:500}.sidebar-link:hover{background:var(--bg)}.sidebar-link.active{color:var(--accent);background:#eaf2f8}.sidebar-footer{margin-top:auto;padding:16px 20px;border-top:1px solid var(--border)}.main-content{flex:1;padding:28px 36px;max-width:1200px}h1{font-size:22px;font-weight:600;margin:0 0 4px}h2{font-size:17px;font-weight:600;margin:0 0 12px}.subtitle{color:var(--text-secondary);margin:0 0 24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px 24px;margin-bottom:20px}.toolbar{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;margin-bottom:16px}.field{display:flex;flex-direction:column;gap:4px}.field label{font-size:12px;color:var(--text-secondary);font-weight:500}input,select{border:1px solid var(--border);border-radius:var(--radius);padding:8px 10px;font-size:14px;background:var(--surface);color:var(--text-primary)}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px}button{border:none;border-radius:var(--radius);padding:9px 16px;font-size:14px;font-weight:500;cursor:pointer;background:var(--accent);color:#fff}button:hover{background:var(--accent-hover)}button:disabled{background:var(--text-muted);cursor:not-allowed}button.secondary{background:var(--surface);color:var(--text-primary);border:1px solid var(--border)}button.secondary:hover{background:var(--bg)}button.danger{background:var(--danger)}button.small{padding:5px 10px;font-size:12px}table{width:100%;border-collapse:collapse}th{text-align:left;font-size:12px;color:var(--text-secondary);font-weight:600;text-transform:uppercase;letter-spacing:.03em;padding:8px 10px;border-bottom:1px solid var(--border)}td{padding:10px;border-bottom:1px solid var(--border);font-size:14px}tr:last-child td{border-bottom:none}.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:500}.badge-success{background:var(--success-bg);color:#085041}.badge-warning{background:var(--warning-bg);color:#633806}.badge-danger{background:var(--danger-bg);color:#791f1f}.badge-neutral{background:var(--bg);color:var(--text-secondary)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:36px;width:340px}.login-card h1{text-align:center;margin-bottom:24px}.login-card form{display:flex;flex-direction:column;gap:14px}.error-text{color:var(--danger);font-size:13px;margin-top:8px}.empty-state{text-align:center;color:var(--text-muted);padding:40px 0}