:root{
  --black:#0A0A0A; --gold:#C9A84C; --gold-light:#F7F1E0; --white:#FFFFFF;
  --grey:#595959; --grey-light:#F7F7F7; --border:#E3E3E3;
  --red:#B00020; --red-bg:#FBE4E7; --green:#2E7D32; --green-bg:#E6F4EA;
  --amber:#B26A00; --amber-bg:#FFF3E0;
}
*{box-sizing:border-box;}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--grey-light);color:#262626;}
a{color:inherit;text-decoration:none;}
input,select,textarea,button{font-family:inherit;font-size:15px;}

/* ---------- Auth pages (login/install) ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;}
.auth-card{background:#fff;border-radius:10px;box-shadow:0 10px 40px rgba(0,0,0,.12);width:100%;max-width:400px;overflow:hidden;}
.auth-card .head{background:var(--black);color:#fff;padding:26px 28px 20px;text-align:center;}
.auth-card .head h1{margin:0 0 4px;font-size:18px;}
.auth-card .head p{margin:0;color:var(--gold);font-size:12px;font-style:italic;}
.auth-card .body{padding:26px 28px 30px;}
.auth-card label{display:block;font-size:12.5px;font-weight:700;color:var(--grey);margin:14px 0 6px;}
.auth-card label:first-child{margin-top:0;}
.auth-card input{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:6px;}
.auth-card button{width:100%;margin-top:20px;background:var(--gold);color:var(--black);border:none;padding:12px;border-radius:6px;font-weight:700;font-size:14px;cursor:pointer;}
.auth-card button:hover{background:#b8974a;}
.auth-error{background:var(--red-bg);color:var(--red);padding:10px 12px;border-radius:6px;font-size:13px;margin-top:14px;}
.auth-hint{text-align:center;font-size:12px;color:#999;margin-top:16px;}

/* ---------- App shell ---------- */
#topbar{
  background:var(--black);color:#fff;display:flex;align-items:center;gap:14px;
  padding:0 16px;height:56px;position:sticky;top:0;z-index:100;
}
#menuToggle{background:none;border:none;color:#fff;font-size:20px;cursor:pointer;display:none;padding:6px;}
.topbar-brand{font-weight:700;font-size:14px;flex:1;}
.topbar-brand span{color:var(--gold);font-weight:400;font-style:italic;font-size:12px;margin-left:6px;}
.topbar-user{font-size:12.5px;color:#ddd;display:flex;align-items:center;gap:8px;}
.role-chip{background:#1c1c1c;border:1px solid #333;color:var(--gold);padding:2px 8px;border-radius:12px;font-size:11px;}

#shell{display:flex;min-height:calc(100vh - 56px);}
#sidenav{
  width:210px;flex-shrink:0;background:#111;padding:14px 0;
}
#sidenav a{display:block;padding:11px 22px;color:#cfcfcf;font-size:13.5px;border-left:3px solid transparent;}
#sidenav a:hover{background:#1a1a1a;color:#fff;}
#sidenav a.active{background:#1a1a1a;color:#fff;border-left-color:var(--gold);font-weight:700;}
.nav-divider{border-top:1px solid #2a2a2a;margin:10px 0;}

#content{flex:1;min-width:0;padding:24px 28px 60px;}

@media (max-width: 820px){
  #menuToggle{display:block;}
  #sidenav{
    position:fixed;top:56px;left:0;bottom:0;transform:translateX(-100%);
    transition:transform .2s ease;z-index:99;box-shadow:4px 0 20px rgba(0,0,0,.2);
  }
  #sidenav.open{transform:translateX(0);}
  #content{padding:18px 16px 50px;}
  .topbar-user span.role-chip{display:none;}
}

/* ---------- Page structure ---------- */
.pagehead{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:18px;flex-wrap:wrap;gap:10px;}
.pagehead h2{margin:0 0 4px;font-size:20px;color:var(--black);}
.pagehead p{margin:0;color:var(--grey);font-size:13px;}

.btn{background:var(--black);color:#fff;border:none;border-radius:5px;padding:10px 16px;font-size:13px;font-weight:700;display:inline-flex;align-items:center;gap:6px;cursor:pointer;}
.btn:hover{background:#222;}
.btn.gold{background:var(--gold);color:var(--black);}
.btn.gold:hover{background:#b8974a;}
.btn.outline{background:transparent;color:var(--black);border:1px solid var(--border);}
.btn.outline:hover{background:var(--grey-light);}
.btn.sm{padding:6px 11px;font-size:12px;border-radius:4px;}
.btn.danger{background:var(--red-bg);color:var(--red);}

.flash{padding:12px 16px;border-radius:6px;margin-bottom:16px;font-size:13.5px;border-left:4px solid var(--green);background:var(--green-bg);color:#1c5c28;}
.flash-error{border-left-color:var(--red);background:var(--red-bg);color:var(--red);}

.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:24px;}
.kpi{background:#fff;border:1px solid var(--border);border-radius:8px;padding:16px 18px;border-left:3px solid var(--gold);}
.kpi .label{font-size:11px;color:var(--grey);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;}
.kpi .value{font-size:22px;font-weight:700;color:var(--black);}
.kpi.accent{border-left-color:var(--gold);}
.kpi.warn .value{color:var(--amber);}
.kpi.warn{border-left-color:var(--amber);}
.kpi.good .value{color:var(--green);}
.kpi.good{border-left-color:var(--green);}

.chart-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:16px;margin-bottom:20px;}
@media(max-width:900px){.chart-grid{grid-template-columns:1fr;}}
.panel{background:#fff;border:1px solid var(--border);border-radius:8px;padding:18px 20px;}
.panel h3{margin:0 0 14px;font-size:14px;color:var(--black);}
.panel .chart-wrap{position:relative;height:260px;}

.table-wrap{background:#fff;border:1px solid var(--border);border-radius:8px;overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:13.5px;}
thead th{background:var(--black);color:#fff;text-align:left;padding:10px 14px;font-size:11px;text-transform:uppercase;white-space:nowrap;}
tbody td{padding:10px 14px;border-bottom:1px solid var(--border);vertical-align:middle;}
tbody tr:last-child td{border-bottom:none;}
tbody tr:hover{background:#FAFAF8;}
.empty-row td{text-align:center;color:#aaa;padding:36px 14px;font-style:italic;}
.rowactions{display:flex;gap:6px;flex-wrap:wrap;}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:700;}
.badge.green{background:var(--green-bg);color:var(--green);}
.badge.grey{background:#EFEFEF;color:#777;}
.badge.gold{background:var(--gold-light);color:#8A6D1F;}
.badge.blue{background:#E3F0FC;color:#1565C0;}
.badge.red{background:var(--red-bg);color:var(--red);}
.badge.amber{background:var(--amber-bg);color:var(--amber);}

/* ---------- Forms ---------- */
.form-card{background:#fff;border:1px solid var(--border);border-radius:8px;padding:22px;max-width:640px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media(max-width:600px){.form-grid{grid-template-columns:1fr;}}
.field.full{grid-column:1/-1;}
.field label{display:block;font-size:12px;font-weight:700;color:var(--grey);margin-bottom:5px;}
.field input,.field select,.field textarea{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:5px;}
.field textarea{min-height:60px;resize:vertical;}
.form-actions{display:flex;gap:8px;margin-top:18px;}