*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f0f2f5;--sidebar:#1a1d2e;--sidebar-active:#2d3154;--accent:#5b5fcf;--accent-light:#eeeffe;--white:#fff;--text:#1a1d2e;--text-muted:#6b7280;--border:#e5e7eb;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--radius:10px;--shadow:0 1px 4px #00000014}body{background:var(--bg);color:var(--text);font-family:Inter,Segoe UI,sans-serif;font-size:14px;line-height:1.5}.layout{min-height:100vh;display:flex}.main-content{flex-direction:column;flex:1;display:flex;overflow:hidden}.page{flex:1;padding:28px 32px;overflow-y:auto}.sidebar{background:var(--sidebar);flex-direction:column;flex-shrink:0;width:230px;padding:20px 0;display:flex}.sidebar-brand{border-bottom:1px solid #ffffff12;align-items:center;gap:10px;margin-bottom:12px;padding:0 20px 24px;display:flex}.sidebar-brand .brand-icon{background:var(--accent);border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.sidebar-brand .brand-icon span{color:#fff;font-size:15px;font-weight:700}.sidebar-brand h1{color:#fff;font-size:15px;font-weight:600}.sidebar-brand p{color:#fff6;font-size:11px}.nav-section-label{letter-spacing:.08em;color:#ffffff4d;text-transform:uppercase;padding:12px 20px 6px;font-size:10px;font-weight:600}.nav-link{color:#ffffff8c;border-radius:7px;align-items:center;gap:10px;margin:1px 8px;padding:9px 20px;font-size:13.5px;text-decoration:none;transition:background .15s,color .15s;display:flex}.nav-link:hover{color:#ffffffd9;background:#ffffff12}.nav-link.active{background:var(--sidebar-active);color:#fff}.nav-link .nav-icon{opacity:.8;font-size:15px}.topbar{background:var(--white);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px 32px;display:flex}.topbar h2{font-size:17px;font-weight:600}.topbar-right{align-items:center;gap:12px;display:flex}.avatar{background:var(--accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;font-size:13px;font-weight:600;display:flex}.card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border)}.card-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:18px 22px;display:flex}.card-header h3{font-size:15px;font-weight:600}.card-body{padding:22px}.stats-row{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px;display:grid}.stat-card{background:var(--white);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);align-items:center;gap:16px;padding:20px 22px;display:flex}.stat-icon{border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:20px;display:flex}.stat-card .label{color:var(--text-muted);margin-bottom:3px;font-size:12px}.stat-card .value{font-size:22px;font-weight:700}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%}thead th{text-align:left;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);padding:10px 16px;font-size:12px;font-weight:600}tbody tr{border-bottom:1px solid var(--border);transition:background .1s}tbody tr:last-child{border-bottom:none}tbody tr:hover{background:#fafafa}tbody td{padding:12px 16px;font-size:13.5px}.badge{border-radius:20px;padding:3px 9px;font-size:11.5px;font-weight:500;display:inline-block}.badge-success{color:#065f46;background:#d1fae5}.badge-warning{color:#92400e;background:#fef3c7}.badge-info{background:var(--accent-light);color:var(--accent)}.form-group{margin-bottom:16px}.form-group label{margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-control{border:1px solid var(--border);width:100%;color:var(--text);background:#fff;border-radius:7px;outline:none;padding:9px 12px;font-size:13.5px;transition:border .15s}.form-control:focus{border-color:var(--accent)}.form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}.checkbox-row{align-items:center;gap:8px;display:flex}.checkbox-row input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent)}.btn{cursor:pointer;border:none;border-radius:7px;align-items:center;gap:6px;padding:9px 18px;font-size:13.5px;font-weight:500;transition:opacity .15s;display:inline-flex}.btn:hover{opacity:.85}.btn-primary{background:var(--accent);color:#fff}.btn-outline{border:1px solid var(--border);color:var(--text);background:0 0}.btn-sm{padding:6px 12px;font-size:12.5px}.btn-danger{background:var(--danger);color:#fff}.page-header{justify-content:space-between;align-items:center;margin-bottom:22px;display:flex}.page-header h2{font-size:20px;font-weight:700}.page-header p{color:var(--text-muted);margin-top:2px;font-size:13px}.alert{border-radius:7px;margin-bottom:16px;padding:12px 16px;font-size:13px}.alert-success{color:#065f46;background:#d1fae5}.alert-error{color:#991b1b;background:#fee2e2}.items-select-table{border-collapse:collapse;width:100%}.items-select-table th,.items-select-table td{text-align:left;border-bottom:1px solid var(--border);padding:10px 12px;font-size:13px}.items-select-table th{color:var(--text-muted);font-size:12px;font-weight:600}.qty-input{border:1px solid var(--border);border-radius:5px;width:70px;padding:5px 8px;font-size:13px}.summary-box{background:var(--bg);border-radius:var(--radius);border:1px solid var(--border);padding:20px}.summary-row{justify-content:space-between;padding:6px 0;font-size:13.5px;display:flex}.summary-row.total{border-top:1px solid var(--border);margin-top:8px;padding-top:12px;font-size:15px;font-weight:700}.invoice-detail{max-width:760px}.invoice-meta{justify-content:space-between;align-items:flex-start;margin-bottom:28px;display:flex}.invoice-meta h1{color:var(--accent);font-size:26px;font-weight:800}.search-bar{gap:10px;margin-bottom:20px;display:flex}.search-bar .form-control{max-width:320px}.empty-state{text-align:center;color:var(--text-muted);padding:48px 20px}.empty-state .empty-icon{margin-bottom:12px;font-size:40px}.empty-state p{font-size:14px}.loader{text-align:center;color:var(--text-muted);padding:40px;font-size:13px}.two-col{grid-template-columns:1fr 360px;align-items:flex-start;gap:20px;display:grid}@media (width<=900px){.stats-row{grid-template-columns:repeat(2,1fr)}.two-col,.form-row{grid-template-columns:1fr}}.card-grid{grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px;display:grid}.item-card{background:var(--white);border:1px solid 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label{color:var(--text);font-size:14px;font-weight:600}.form-field input,.form-field select,.form-field textarea{color:var(--text);background:#c4c6c9;border:none;border-radius:6px;outline:none;width:100%;padding:12px 14px;font-size:14px}.form-field input:focus,.form-field select:focus{background:#c4c6c9}.form-field select{appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23333' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat}.form-actions{gap:14px;margin-top:36px;display:flex}.btn-cancel{border:2px solid var(--danger);color:var(--danger);cursor:pointer;background:0 0;border-radius:6px;padding:10px 24px;font-size:14px;font-weight:500}.btn-cancel:hover{background:#fee2e2}.btn-create{color:#fff;cursor:pointer;background:#1a1d2e;border:none;border-radius:6px;padding:10px 28px;font-size:14px;font-weight:600}.btn-create:hover{opacity:.85}.empty-add-state{flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:64px 20px;display:flex}.empty-add-state p{color:var(--text-muted);font-size:15px}@media (width<=768px){.card-grid{grid-template-columns:repeat(2,1fr)}.form-field-group{grid-template-columns:1fr}}