:root{--bg:#f8fafc;--bg-sidebar:#1e293b;--bg-card:#fff;--color-primary:#2563eb;--color-accent:#f97316;--color-success:#16a34a;--color-warning:#d97706;--color-danger:#dc2626;--color-cyan:#0891b2;--color-text:#1e293b;--color-muted:#64748b;--color-border:#e2e8f0;--font-body:"Open Sans",system-ui,sans-serif;--font-heading:"Poppins","Open Sans",system-ui,sans-serif;--radius:6px;--shadow:0 1px 3px #00000014,0 1px 2px #0000000a;--shadow-md:0 4px 6px #00000012,0 2px 4px #0000000a;--transition:.15s ease}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-body);background:var(--bg);color:var(--color-text);-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;font:inherit;background:0 0;border:none}input,select,textarea{font:inherit;color:inherit;border:1px solid var(--color-border);border-radius:var(--radius);transition:border-color var(--transition),box-shadow var(--transition);background:#fff;outline:none;padding:8px 12px;font-size:13px}input:focus,select:focus,textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb14}table{border-collapse:collapse;width:100%}th,td{text-align:left}.app-shell{height:100vh;display:flex;overflow:hidden}.main-content{background:var(--bg);flex:1;overflow-y:auto}.page-body{padding:32px 40px}.sidebar{background:var(--bg-sidebar);flex-direction:column;width:224px;min-width:224px;height:100vh;display:flex;position:sticky;top:0}.sidebar-logo{border-bottom:1px solid #ffffff14;align-items:center;gap:10px;padding:20px 20px 16px;display:flex}.logo-mark{background:linear-gradient(135deg,var(--color-accent),var(--color-primary));color:#fff;width:36px;height:36px;font-size:14px;font-weight:800;font-family:var(--font-heading);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.logo-text{flex-direction:column;display:flex}.logo-name{color:#fff;letter-spacing:.04em;font-size:11px;font-weight:700;line-height:1.2;font-family:var(--font-heading)}.logo-sub{color:#ffffff73;letter-spacing:.06em;text-transform:uppercase;font-size:9px}.sidebar-nav{flex:1;padding:12px 0;overflow-y:auto}.nav-section-label{color:#ffffff4d;letter-spacing:.1em;text-transform:uppercase;padding:12px 20px 6px;font-size:9px;font-weight:700}.nav-link{color:#ffffffa6;transition:all var(--transition);border-left:2px solid #0000;align-items:center;gap:10px;padding:8px 20px;font-size:13px;font-weight:500;text-decoration:none;display:flex}.nav-link:hover{color:#fff;background:#ffffff0d}.nav-link.active{color:#fff;border-left-color:var(--color-accent);background:#ffffff14}.nav-link svg{opacity:.7;flex-shrink:0}.nav-link.active svg{opacity:1}.sidebar-footer{border-top:1px solid #ffffff14;padding:12px 20px 16px}.sidebar-footer .org{color:#ffffff59;letter-spacing:.06em;text-transform:uppercase;font-size:10px;font-weight:700}.sidebar-footer .ver{color:#fff3;margin-top:2px;font-size:10px}.page-header{margin-bottom:28px}.page-header h1{font-family:var(--font-heading);color:var(--color-text);font-size:22px;font-weight:700}.page-header p{color:var(--color-muted);margin-top:3px;font-size:13px}.page-header-row{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.card{background:var(--bg-card);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;padding:14px 20px;display:flex}.card-header h2{font-size:14px;font-weight:600;font-family:var(--font-heading)}.card-body{padding:20px}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:28px;display:grid}.stat-card{background:var(--bg-card);border:1px solid var(--color-border);border-radius:var(--radius);border-left:4px solid var(--color-primary);box-shadow:var(--shadow);padding:18px 20px}.stat-label{color:var(--color-muted);text-transform:uppercase;letter-spacing:.07em;margin-bottom:6px;font-size:10px;font-weight:700}.stat-value{font-family:var(--font-heading);color:var(--color-text);font-size:26px;font-weight:700;line-height:1}.stat-sub{color:var(--color-muted);margin-top:4px;font-size:11px}.table-container{overflow-x:auto}.data-table{border-collapse:collapse;width:100%}.data-table thead tr{background:#f8fafc}.data-table th{color:var(--color-muted);text-transform:uppercase;letter-spacing:.07em;border-bottom:1px solid var(--color-border);white-space:nowrap;padding:9px 16px;font-size:10px;font-weight:700}.data-table td{border-bottom:1px solid var(--color-border);vertical-align:middle;padding:11px 16px;font-size:13px}.data-table tr:last-child td{border-bottom:none}.data-table tbody tr:hover{background:#f8fafc}.table-footer{color:var(--color-muted);border-top:1px solid var(--color-border);padding:10px 16px;font-size:12px}.empty-state{text-align:center;color:var(--color-muted);padding:48px 20px}.empty-state svg{opacity:.3;margin-bottom:12px}.empty-state p{font-size:14px}.btn{border-radius:var(--radius);transition:all var(--transition);cursor:pointer;white-space:nowrap;border:none;align-items:center;gap:6px;padding:8px 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9px;font-size:11px;font-weight:600;display:inline-block}.badge-paid{color:#16a34a;background:#dcfce7}.badge-sent{color:#d97706;background:#fef3c7}.badge-draft{color:#64748b;background:#f1f5f9}.badge-overdue{color:#dc2626;background:#fee2e2}.search-bar{align-items:center;gap:8px;margin-bottom:16px;display:flex}.search-bar input{width:280px;padding-left:32px}.search-wrap{position:relative}.search-wrap svg{color:var(--color-muted);pointer-events:none;position:absolute;top:50%;left:9px;transform:translateY(-50%)}.modal-backdrop{z-index:1000;background:#00000059;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:#fff;border-radius:8px;width:100%;max-width:560px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 40px #00000026}.modal-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;padding:18px 24px;display:flex}.modal-header h3{font-size:16px;font-weight:600;font-family:var(--font-heading)}.modal-body{padding:20px 24px}.modal-footer{border-top:1px solid var(--color-border);justify-content:flex-end;gap:10px;padding:14px 24px;display:flex}.form-group{margin-bottom:16px}.form-label{color:var(--color-text);margin-bottom:5px;font-size:12px;font-weight:600;display:block}.form-label span{color:var(--color-danger);margin-left:2px}.form-row{grid-template-columns:1fr 1fr;gap:14px;display:grid}.form-full{grid-column:1/-1}.alert{border-radius:var(--radius);margin-bottom:16px;padding:10px 14px;font-size:13px}.alert-error{color:#991b1b;background:#fee2e2;border:1px solid #fecaca}.alert-success{color:#166534;background:#dcfce7;border:1px solid #bbf7d0}.alert-info{color:#1e40af;background:#dbeafe;border:1px solid #bfdbfe}.login-shell{background:linear-gradient(135deg,#1e293b 0%,#0f172a 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.card-header{border-bottom:2px solid #1e293b;margin-bottom:12px}.btn{display:none!important}.stat-card{break-inside:avoid}body{font-size:11px}}