:root{--bg:#f5f7fb;--panel:#fff;--text:#14213d;--muted:#6b7280;--line:#e5e7eb;--nav:#102038;--blue:#2563eb;--green:#16a34a;--red:#dc2626}
*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}.app{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.sidebar{background:var(--nav);color:#fff;padding:24px 16px}.logo{font-size:32px;font-weight:800;letter-spacing:2px;margin:4px 10px 28px}
.nav a{display:block;padding:12px 14px;border-radius:9px;margin:5px 0;color:#dce7f7}.nav a.active,.nav a:hover{background:var(--blue);color:#fff}
.main{padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.topbar h1{margin:0}
.btn{display:inline-block;border:0;border-radius:9px;padding:10px 13px;font-weight:600;cursor:pointer}.btn-primary{background:var(--blue);color:white}.btn-success{background:var(--green);color:white}.btn-danger{background:var(--red);color:white}.btn-light{background:white;border:1px solid var(--line)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}.stat,.card{background:white;border:1px solid var(--line);border-radius:13px}.stat{padding:14px}.stat strong{font-size:24px;display:block}.stat span{color:var(--muted);font-size:12px}
.layout{display:grid;grid-template-columns:300px 1fr;gap:18px}.filters{padding:16px;align-self:start}.field{margin-bottom:13px}.field label{display:block;font-weight:700;font-size:13px;margin-bottom:6px}
.input,.select{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;background:#fff}.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;min-width:1100px}th,td{padding:11px 9px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{font-size:12px;background:#fafafa}td{font-size:13px}
.thumb{width:58px;height:58px;object-fit:contain;border:1px solid var(--line);border-radius:8px}.barcode{width:120px;height:42px;object-fit:contain}.code{font-family:Consolas,monospace}
.badge{display:inline-block;padding:5px 8px;border-radius:999px;font-size:11px;font-weight:700}.green{background:#e8f8ee;color:#17743a}.gray{background:#eef2f7;color:#475569}.blue{background:#e8f0ff;color:#1d4ed8}
.row-actions{display:flex;gap:6px}.pagination{display:flex;gap:6px;justify-content:center;padding:14px}.pagination a{padding:8px 10px;background:white;border:1px solid var(--line);border-radius:7px}.pagination .active{background:var(--blue);color:white}
.form-card{padding:18px;max-width:950px;margin:auto}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:1000px){.app{grid-template-columns:1fr}.layout{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}}