:root{--bg: #f5f6f8;--surface: #ffffff;--border: #e2e4e9;--text: #1a1d23;--text-muted: #6b7280;--primary: #4a1d1d;--primary-light: #6b2c2c;--accent: #b8860b;--success: #1a7f37;--warning: #b45309;--danger: #c0362c;--radius: 10px;font-family:Segoe UI,Tahoma,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:14px}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--primary);color:#fff;padding:20px 14px;display:flex;flex-direction:column;gap:6px;flex-shrink:0}.sidebar h1{font-size:16px;margin:0 0 18px;font-weight:700}.sidebar a{color:#f0e6e6;text-decoration:none;padding:9px 12px;border-radius:var(--radius);font-size:14px}.sidebar a.active,.sidebar a:hover{background:var(--primary-light);color:#fff}.sidebar .spacer{flex:1}.sidebar .user-box{font-size:12px;color:#e6d5d5;border-top:1px solid rgba(255,255,255,.15);padding-top:12px}.sidebar .logout-btn{background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;padding:6px 10px;border-radius:var(--radius);margin-top:8px;font-size:12px;width:100%}.main{flex:1;padding:28px 32px;max-width:1200px}.page-title{font-size:20px;font-weight:700;margin:0 0 20px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.toolbar{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap;align-items:center}.toolbar select,.toolbar input{padding:7px 10px;border:1px solid var(--border);border-radius:8px;background:#fff}.btn{background:var(--primary);color:#fff;border:none;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:600}.btn:hover{background:var(--primary-light)}.btn.secondary{background:#fff;color:var(--primary);border:1px solid var(--primary)}.board{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.board-col{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px;min-height:200px}.board-col h3{font-size:13px;margin:0 0 10px;color:var(--text-muted);text-transform:none;display:flex;justify-content:space-between}.task-card{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:10px;margin-bottom:8px;font-size:13px;cursor:pointer}.task-card:hover{border-color:var(--primary)}.task-card .t-title{font-weight:600;margin-bottom:4px}.task-card .t-meta{color:var(--text-muted);font-size:12px}.badge{display:inline-block;padding:2px 8px;border-radius:100px;font-size:11px;font-weight:600}.badge.pending{background:#eef0f4;color:#4b5563}.badge.in_progress{background:#e0edff;color:#1d4ed8}.badge.awaiting_approval{background:#fef3c7;color:var(--warning)}.badge.done{background:#dcfce7;color:var(--success)}.badge.overdue{background:#fee2e2;color:var(--danger)}.badge.returned{background:#fde7e0;color:#c2410c}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:right;padding:9px 10px;border-bottom:1px solid var(--border)}th{color:var(--text-muted);font-weight:600;font-size:12px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--primary)}.login-box{background:#fff;border-radius:var(--radius);padding:32px;width:320px}.login-box h1{font-size:18px;margin:0 0 4px}.login-box p{color:var(--text-muted);font-size:13px;margin:0 0 20px}.login-box label{display:block;font-size:13px;margin-bottom:6px;font-weight:600}.login-box input{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:8px;margin-bottom:14px}.login-box .btn{width:100%;padding:10px}.error-text{color:var(--danger);font-size:13px;margin-bottom:10px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-bottom:24px}.stat-card h4{margin:0 0 6px;font-size:13px;color:var(--text-muted);font-weight:600}.stat-card .big{font-size:26px;font-weight:700}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:#fff;border-radius:var(--radius);padding:22px;width:380px;max-height:85vh;overflow-y:auto}.modal h2{font-size:16px;margin:0 0 16px}.field{margin-bottom:12px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}.field input,.field select,.field textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px}.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}