:root{--bg:#f6f7f9;--surface:#fff;--border:#e2e5ea;--text:#1a1d23;--text-muted:#6b7280;--primary:#4f46e5;--primary-hover:#4338ca;--danger:#dc2626;--danger-bg:#fee2e2;--success:#16a34a;--success-bg:#dcfce7;--warning:#d97706;--warning-bg:#fef3c7;--neutral-bg:#f1f2f4;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}h1,h2,h3{margin:0;font-weight:600}p{margin:0}a{color:inherit}button,input,select,textarea{font-family:inherit;font-size:.95rem}.app-shell{min-height:100vh;display:flex}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;gap:24px;width:220px;padding:24px 16px;display:flex}.sidebar-brand{padding:0 8px;font-size:1.1rem;font-weight:700}.sidebar-nav{flex-direction:column;gap:4px;display:flex}.sidebar-nav a{color:var(--text-muted);border-radius:8px;padding:10px 12px;font-weight:500;text-decoration:none;display:block}.sidebar-nav a:hover{background:var(--neutral-bg);color:var(--text)}.sidebar-nav a.active{background:var(--primary);color:#fff}.main{flex:1;max-width:1100px;padding:32px 40px}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;display:flex}.page-header h1{font-size:1.6rem}.muted{color:var(--text-muted)}.btn{cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:8px;align-items:center;gap:6px;padding:9px 16px;font-weight:600;text-decoration:none;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--surface);border-color:var(--border);color:var(--text)}.btn-secondary:hover{background:var(--neutral-bg)}.btn-sm{padding:6px 12px;font-size:.85rem}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:32px;display:grid}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px}.stat-card .stat-label{color:var(--text-muted);font-size:.85rem;font-weight:500}.stat-card .stat-value{margin-top:4px;font-size:1.7rem;font-weight:700}.stat-card.stat-danger .stat-value{color:var(--danger)}.stat-card.stat-warning .stat-value{color:var(--warning)}.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--border);padding:12px 16px;font-size:.92rem}th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;background:var(--neutral-bg);font-size:.8rem;font-weight:600}tbody tr:last-child td{border-bottom:none}tbody tr.row-overdue{background:var(--danger-bg)}.table-actions{justify-content:flex-end;gap:8px;display:flex}.empty-state{text-align:center;color:var(--text-muted);padding:48px 16px}.badge{border-radius:999px;align-items:center;padding:3px 10px;font-size:.78rem;font-weight:600;display:inline-flex}.badge-open{background:var(--neutral-bg);color:var(--text-muted)}.badge-partiallypaid{background:var(--warning-bg);color:var(--warning)}.badge-paid{background:var(--success-bg);color:var(--success)}.badge-overdue{background:var(--danger-bg);color:var(--danger)}.badge-cancelled{background:var(--neutral-bg);color:var(--text-muted);text-decoration:line-through}.form{flex-direction:column;gap:16px;max-width:520px;display:flex}.form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}.field{flex-direction:column;gap:6px;display:flex}.field label{color:var(--text-muted);font-size:.85rem;font-weight:600}.field input,.field select,.field textarea{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:8px;padding:9px 12px}.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}.form-actions{gap:12px;margin-top:8px;display:flex}.error-banner{background:var(--danger-bg);color:var(--danger);border-radius:8px;padding:10px 14px;font-size:.9rem}.modal-overlay{z-index:50;background:#0006;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border-radius:12px;flex-direction:column;gap:16px;width:100%;max-width:420px;padding:24px;display:flex}.filter-bar{flex-wrap:wrap;gap:12px;margin-bottom:20px;display:flex}.filter-bar input,.filter-bar select{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:8px;padding:8px 12px}