:root{
  --green:#1f7a3d; --green-d:#155c2c; --green-l:#e8f3ec;
  --ink:#1c2421; --muted:#6b7670; --line:#e2e6e3; --bg:#f4f6f4;
  --amber:#b46b00; --red:#b42318; --blue:#1f5fa8;
  --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5}
a{color:inherit;text-decoration:none}
.layout{display:flex;min-height:100vh}

.sidebar{width:240px;background:var(--green-d);color:#fff;display:flex;flex-direction:column;padding:18px 0;position:sticky;top:0;height:100vh}
.brand{font-size:18px;font-weight:600;padding:0 20px 6px;display:flex;align-items:center;gap:8px}
.role-tag{font-size:12px;opacity:.7;padding:0 20px 18px;text-transform:uppercase;letter-spacing:.06em}
.sidebar nav{flex:1}
.nav-link{display:flex;align-items:center;gap:10px;padding:11px 20px;font-size:14px;color:#e6f0e9;opacity:.85}
.nav-link:hover{background:rgba(255,255,255,.08);opacity:1}
.nav-link.active{background:var(--green);opacity:1;border-left:3px solid #fff}
.nav-link i{font-size:18px}
.nav-link.logout{margin-top:auto;opacity:.8}

.content{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:16px 28px;display:flex;justify-content:space-between;align-items:center}
.topbar h1{font-size:20px;font-weight:600}
.who{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:6px}
.page{padding:24px 28px;max-width:1100px}

.flash{background:var(--green-l);color:var(--green-d);border:1px solid #bfe0cb;padding:12px 16px;border-radius:var(--radius);margin-bottom:18px;font-size:14px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.card .label{font-size:13px;color:var(--muted)}
.card .value{font-size:26px;font-weight:600;margin-top:4px}

.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:22px}
.panel h2{font-size:16px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px}

table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line)}
th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:600}
tr:last-child td{border-bottom:none}
td.right,th.right{text-align:right}

.badge{display:inline-block;font-size:12px;padding:3px 10px;border-radius:20px;font-weight:600}
.b-green{background:var(--green-l);color:var(--green-d)}
.b-amber{background:#fbedd6;color:var(--amber)}
.b-red{background:#fbe4e2;color:var(--red)}
.b-blue{background:#e3eefb;color:var(--blue)}
.b-gray{background:#eef1ef;color:var(--muted)}

label.field{display:block;margin-bottom:14px;font-size:14px}
label.field span{display:block;color:var(--muted);font-size:13px;margin-bottom:5px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--green)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}

.btn{display:inline-flex;align-items:center;gap:6px;background:var(--green);color:#fff;border:none;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer}
.btn:hover{background:var(--green-d)}
.btn.sm{padding:6px 12px;font-size:13px}
.btn.gray{background:#eef1ef;color:var(--ink)}
.btn.red{background:var(--red)}
.btn.blue{background:var(--blue)}

.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--green-d)}
.login-box{background:#fff;border-radius:16px;padding:34px;width:360px;max-width:92vw}
.login-box .brand{color:var(--green-d);justify-content:center;font-size:22px;padding-bottom:4px}
.login-box .sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:22px}
.login-box .err{background:#fbe4e2;color:var(--red);padding:10px;border-radius:8px;font-size:13px;margin-bottom:14px;text-align:center}
.muted{color:var(--muted);font-size:13px}
.flex-between{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.stock-low{color:var(--red);font-weight:600}
.stock-ok{color:var(--green-d);font-weight:600}
.thumb{width:42px;height:42px;border-radius:8px;object-fit:cover;background:var(--bg);border:1px solid var(--line)}