:root{--bg-primary: #0a0a0f;--bg-secondary: #0e0e15;--bg-card: #111118;--text-primary: #e5e5e5;--text-secondary: #8b8b9e;--accent: #3b82f6;--accent-hover: #5b9bf7;--danger: #ef4444;--warning: #f59e0b;--success: #22c55e;--border: #1e1e2e;--border-hover: #2a2a3e}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh}.app-layout{display:flex;min-height:100vh}.sidebar{width:230px;background:var(--bg-secondary);border-right:1px solid var(--border);padding:0;display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{padding:20px;border-bottom:1px solid var(--border)}.sidebar-header h2{font-size:17px;color:var(--accent);font-weight:700;letter-spacing:-.3px}.sidebar-header p{font-size:11px;color:var(--text-secondary);margin-top:3px}.sidebar-nav{flex:1;padding:8px 0}.sidebar-nav button{display:flex;align-items:center;gap:10px;width:100%;padding:11px 20px;background:none;border:none;color:var(--text-secondary);text-align:left;cursor:pointer;font-size:13px;transition:all .15s;border-left:3px solid transparent}.sidebar-nav button:hover{background:var(--bg-card);color:var(--text-primary)}.sidebar-nav button.active{background:var(--bg-card);color:var(--accent);border-left-color:var(--accent)}.sidebar-nav button svg{width:16px;height:16px;flex-shrink:0}.sidebar-footer{padding:12px;border-top:1px solid var(--border)}.sidebar-footer button{display:flex;align-items:center;gap:8px;width:100%;padding:10px 12px;background:none;border:none;color:var(--danger);cursor:pointer;font-size:13px;border-radius:6px;transition:background .15s}.sidebar-footer button:hover{background:#ef44441a}.main-content{flex:1;padding:28px 32px;overflow-y:auto;max-height:100vh}.main-content h1{font-size:22px;font-weight:700;margin-bottom:20px;letter-spacing:-.3px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:16px}.card h3{font-size:14px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:14px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-bottom:24px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:18px 20px}.stat-card .stat-label{font-size:11px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}.stat-card .stat-value{font-size:26px;font-weight:700;color:var(--text-primary);line-height:1}.stat-card .stat-value.accent{color:var(--accent)}.stat-card .stat-value.danger{color:var(--danger)}.stat-card .stat-value.success{color:var(--success)}.stat-card .stat-value.warning{color:var(--warning)}.btn{padding:9px 18px;border:none;border-radius:6px;cursor:pointer;font-size:13px;font-weight:600;transition:all .15s;display:inline-flex;align-items:center;gap:6px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-secondary{background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--border-hover)}.btn-sm{padding:5px 10px;font-size:11px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn+.btn{margin-left:8px}input,select,textarea{width:100%;padding:9px 13px;background:var(--bg-primary);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);font-size:13px;margin-bottom:10px;transition:border-color .15s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}textarea{min-height:70px;resize:vertical}label.form-label{display:block;font-size:11px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.3px;margin-bottom:4px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.form-row{display:flex;gap:12px;margin-bottom:12px}table{width:100%;border-collapse:collapse}th{text-align:left;padding:10px 12px;color:var(--text-secondary);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border)}td{padding:10px 12px;border-bottom:1px solid var(--border);font-size:13px}tr:hover td{background:#ffffff04}.badge{display:inline-block;padding:3px 10px;border-radius:12px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.3px}.badge-open{background:#3b82f626;color:var(--accent)}.badge-paid{background:#22c55e26;color:var(--success)}.badge-overdue{background:#ef444426;color:var(--danger)}.badge-partial{background:#f59e0b26;color:var(--warning)}.badge-disputed{background:#a855f726;color:#a855f7}.badge-pending{background:#f59e0b26;color:var(--warning)}.badge-success{background:#22c55e26;color:var(--success)}.badge-danger{background:#ef444426;color:var(--danger)}.badge-warning{background:#f59e0b26;color:var(--warning)}.badge-info{background:#3b82f626;color:var(--accent)}.badge-hold{background:#ef444426;color:var(--danger)}.badge-active{background:#3b82f626;color:var(--accent)}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:var(--bg-primary)}.login-box{background:var(--bg-card);padding:40px;border-radius:12px;width:400px;border:1px solid var(--border)}.login-box h1{text-align:center;margin-bottom:6px;color:var(--accent);font-size:22px}.login-box p{text-align:center;color:var(--text-secondary);margin-bottom:28px;font-size:13px}.error-msg{color:var(--danger);font-size:13px;margin-bottom:12px;padding:8px 12px;background:#ef44441a;border-radius:6px}.aging-row{display:grid;grid-template-columns:2fr repeat(5,1fr) 1fr;gap:8px;padding:10px 0;border-bottom:1px solid var(--border);align-items:center;font-size:13px}.aging-row.header{font-size:11px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.3px;font-weight:600;border-bottom:2px solid var(--border)}.aging-row .amount{text-align:right;font-variant-numeric:tabular-nums}.aging-row .amount.overdue{color:var(--danger)}.approval-card{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:16px 20px;margin-bottom:12px}.approval-card .approval-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.approval-card .approval-detail{font-size:12px;color:var(--text-secondary);margin-bottom:12px}.empty-state{text-align:center;padding:40px 20px;color:var(--text-secondary)}.empty-state svg{margin-bottom:12px;opacity:.4}.empty-state p{font-size:14px}.tab-row{display:flex;gap:4px;margin-bottom:20px;border-bottom:1px solid var(--border)}.tab-row button{padding:10px 16px;background:none;border:none;border-bottom:2px solid transparent;color:var(--text-secondary);cursor:pointer;font-size:13px;transition:all .15s}.tab-row button:hover{color:var(--text-primary)}.tab-row button.active{color:var(--accent);border-bottom-color:var(--accent)}.chart-wrapper{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:16px}.loading{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--text-secondary);font-size:14px}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}