:root{--bg:#f5f6f8;--surface:#fff;--text:#18202a;--muted:#667085;--border:#e4e7ec;--accent:#263238;--ok:#137a50;--warn:#9a6700;--danger:#b42318}*{box-sizing:border-box}html{background:var(--bg)}body{color:var(--text);background:var(--bg);margin:0;font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.shell{max-width:1080px;min-height:100vh;margin:0 auto;padding:0 18px 48px}.header{justify-content:space-between;align-items:center;gap:16px;padding:22px 0 16px;display:flex}.brand{letter-spacing:-.02em;font-size:21px;font-weight:800}.brand span{color:var(--muted);font-weight:500}.nav{flex-wrap:wrap;gap:8px;display:flex}.nav a{color:var(--muted);border-radius:10px;padding:10px 12px}.nav a:hover{background:var(--surface);color:var(--text)}.page-title{letter-spacing:-.04em;margin:16px 0 6px;font-size:clamp(28px,5vw,42px)}.subtitle{color:var(--muted);max-width:720px;margin:0 0 24px;line-height:1.55}.grid{gap:14px;display:grid}.metrics{grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:18px}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px}.metric-label{color:var(--muted);margin-bottom:8px;font-size:13px}.metric-value{letter-spacing:-.04em;font-size:28px;font-weight:800}.toolbar{justify-content:space-between;align-items:center;gap:12px;margin:18px 0 12px;display:flex}.button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:10px;justify-content:center;align-items:center;padding:11px 14px;font-weight:700;display:inline-flex}.button.secondary{color:var(--text);border:1px solid var(--border);background:#fff}.button:disabled{opacity:.55;cursor:not-allowed}.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:16px;overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:680px}th,td{text-align:left;border-bottom:1px solid var(--border);padding:14px 16px}th{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:12px}tr:last-child td{border-bottom:0}.product-name{font-weight:700}.muted{color:var(--muted);font-size:13px}.badge{border-radius:999px;padding:5px 8px;font-size:12px;font-weight:700;display:inline-block}.badge.ok{color:var(--ok);background:#e9f7f0}.badge.low{color:var(--warn);background:#fff4d6}.badge.out{color:var(--danger);background:#feeceb}.form{max-width:720px}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.field{gap:7px;display:grid}.field.full{grid-column:1/-1}label{font-size:13px;font-weight:700}input,select,textarea{width:100%;color:var(--text);background:#fff;border:1px solid #cfd4dc;border-radius:10px;padding:11px 12px}input:focus,select:focus,textarea:focus{border-color:#7c8792;outline:2px solid #d5dce1}.help{color:var(--muted);font-size:12px}.form-actions{gap:10px;margin-top:18px;display:flex}.error{color:var(--danger);background:#feeceb;border-radius:10px;margin:12px 0;padding:11px 12px}.success{color:var(--ok);background:#e9f7f0;border-radius:10px;margin:12px 0;padding:11px 12px}.empty{color:var(--muted);text-align:center;padding:34px}@media (max-width:700px){.header{flex-direction:column;align-items:flex-start}.metrics,.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.toolbar{flex-direction:column;align-items:stretch}.button{width:100%}}.filters{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.chip{border:1px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer;border-radius:999px;padding:8px 13px;font-size:13px;font-weight:700}.chip.active{background:var(--accent);border-color:var(--accent);color:#fff}.chip-count{opacity:.65;margin-left:3px;font-weight:500}.login-main{max-width:420px;margin:40px auto 0}.login-card{gap:14px;display:grid}.link-button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:10px;padding:10px 12px;font-weight:400}.link-button:hover{background:var(--surface);color:var(--text)}.actions{flex-wrap:wrap;gap:8px;display:flex}.button.danger{color:var(--danger);background:#fff;border:1px solid #f0b9b4}.link-button.inline{padding:4px 0;font-size:13px}.quick-add{grid-template-columns:1fr auto auto;align-items:center;gap:8px;margin-top:8px;display:grid}.quick-add .error{grid-column:1/-1;margin:0}.notice{color:var(--warn);background:#fff4d6;border-radius:10px;margin-bottom:14px;padding:11px 12px}.page-title .badge{vertical-align:middle;margin-left:8px;font-size:13px}@media (max-width:700px){.quick-add{grid-template-columns:1fr}.actions .button{width:100%}}