:root{
  --bg:#0A0F1A;--bg-2:#0E1626;--panel:#121C2E;--panel-2:#17233A;
  --line:#22304A;--line-2:#2C3E5C;--txt:#E7EEF7;--txt-2:#93A4BE;--txt-dim:#5F7391;
  --live:#25D6A4;--grid:#4FA9FF;--pv:#F5B72E;--batt:#25D6A4;--dg:#FF8A48;
  --warn:#F5A524;--crit:#F0384B;--radius:10px;--radius-sm:7px;
  --shadow:0 1px 0 rgba(255,255,255,.03),0 8px 24px rgba(0,0,0,.35);
  --mono:'IBM Plex Mono',ui-monospace,Menlo,Consolas,monospace;
  --sans:'IBM Plex Sans',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:var(--sans);color:var(--txt);font-size:14px;line-height:1.45;overflow:hidden;
  -webkit-font-smoothing:antialiased;
  background:radial-gradient(1200px 600px at 80% -10%,rgba(37,214,164,.06),transparent 60%),
    radial-gradient(1000px 500px at 0% 110%,rgba(79,169,255,.05),transparent 60%),var(--bg);}
::-webkit-scrollbar{width:9px;height:9px}::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:6px}::-webkit-scrollbar-track{background:transparent}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
input,select,button{font-family:var(--sans)}

.app{display:grid;grid-template-columns:236px 1fr;grid-template-rows:56px 1fr;height:100vh}
.brand{grid-column:1;grid-row:1;display:flex;align-items:center;gap:11px;padding:0 18px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);background:var(--bg-2)}
.brand .logo{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--live),#12907a);display:grid;place-items:center;flex:0 0 auto;box-shadow:0 0 0 1px rgba(37,214,164,.35),0 0 14px rgba(37,214,164,.25)}
.brand .logo svg{width:15px;height:15px}
.brand b{font-weight:600;letter-spacing:.3px;font-size:14px}
.brand span{display:block;font-size:10px;color:var(--txt-2);letter-spacing:1.5px;font-weight:500;margin-top:-1px}

.topbar{grid-column:2;grid-row:1;display:flex;align-items:center;gap:16px;padding:0 20px;border-bottom:1px solid var(--line);background:var(--bg-2)}
.crumb{font-size:13px;color:var(--txt-2)}.crumb b{color:var(--txt);font-weight:600}
.spacer{flex:1}
.pill{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-size:11.5px;padding:5px 11px;border:1px solid var(--line);border-radius:100px;color:var(--txt-2);background:var(--panel)}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--live);box-shadow:0 0 9px var(--live);animation:pulse 2s infinite}
.pill.down .dot{background:var(--crit);box-shadow:0 0 9px var(--crit)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.clock{font-family:var(--mono);font-size:12.5px;letter-spacing:.5px}
.iconbtn{position:relative;width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:var(--panel);color:var(--txt-2);display:grid;place-items:center;cursor:pointer}
.iconbtn:hover{color:var(--txt);border-color:var(--line-2)}
.iconbtn .badge{position:absolute;top:-6px;right:-6px;min-width:17px;height:17px;padding:0 4px;border-radius:9px;background:var(--crit);color:#fff;font-size:10px;font-weight:700;display:grid;place-items:center;font-family:var(--mono)}
.user{display:flex;align-items:center;gap:9px;padding-left:4px}
.avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,#3a557d,#22304a);display:grid;place-items:center;font-size:12px;font-weight:600}
.user .u-name{font-size:12.5px;font-weight:600;line-height:1.1}.user .u-role{font-size:10.5px;color:var(--txt-2)}

.side{grid-column:1;grid-row:2;border-right:1px solid var(--line);background:var(--bg-2);padding:14px 12px;overflow-y:auto;display:flex;flex-direction:column}
.nav-label{font-size:10px;letter-spacing:1.4px;color:var(--txt-dim);font-weight:600;padding:14px 10px 7px}
.nav-item{display:flex;align-items:center;gap:11px;padding:9px 11px;border-radius:8px;color:var(--txt-2);cursor:pointer;font-size:13px;font-weight:500;position:relative;user-select:none}
.nav-item svg{width:17px;height:17px;flex:0 0 auto;opacity:.9}
.nav-item:hover{background:var(--panel);color:var(--txt)}
.nav-item.active{background:linear-gradient(90deg,rgba(37,214,164,.14),rgba(37,214,164,.02));color:var(--txt)}
.nav-item.active::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--live);box-shadow:0 0 10px var(--live)}
.nav-item .n-badge{margin-left:auto;font-family:var(--mono);font-size:10.5px;background:var(--crit);color:#fff;border-radius:20px;padding:1px 7px;font-weight:600}
.nav-item .n-badge.zero{background:var(--panel-2);color:var(--txt-2)}
.side-foot{margin-top:auto;padding:12px 10px 4px;border-top:1px solid var(--line);font-size:10.5px;color:var(--txt-dim);line-height:1.6}
.side-foot .mono{color:var(--txt-2)}

.main{grid-column:2;grid-row:2;overflow-y:auto;padding:20px 22px 40px}
.view{display:none;animation:fade .25s ease}.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.panel-h{display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--line)}
.panel-h h3{font-size:13px;font-weight:600}.panel-h .sub{font-size:11px;color:var(--txt-2);font-family:var(--mono)}
.panel-b{padding:16px}
.sec-head{display:flex;align-items:baseline;gap:12px;margin:4px 2px 16px;flex-wrap:wrap}
.sec-head h1{font-size:19px;font-weight:600}.sec-head p{font-size:12.5px;color:var(--txt-2)}

.kpis{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-bottom:18px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 15px;position:relative;overflow:hidden}
.kpi .k-top{display:flex;align-items:center;gap:8px;color:var(--txt-2);font-size:11px;font-weight:500;letter-spacing:.3px;text-transform:uppercase}
.kpi .k-top svg{width:14px;height:14px}
.kpi .k-val{font-family:var(--mono);font-size:25px;font-weight:600;margin-top:9px;letter-spacing:-.5px;line-height:1}
.kpi .k-val small{font-size:13px;color:var(--txt-2);font-weight:400;margin-left:3px}
.kpi .k-sub{font-size:11px;color:var(--txt-2);margin-top:6px;font-family:var(--mono)}
.kpi .k-accent{position:absolute;left:0;top:0;bottom:0;width:3px}
.up{color:var(--live)}.down{color:var(--crit)}.amber{color:var(--warn)}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.site-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:15px;cursor:pointer;transition:border-color .15s,transform .15s}
.site-card:hover{border-color:var(--line-2);transform:translateY(-2px)}
.site-card .sc-head{display:flex;align-items:center;gap:9px;margin-bottom:13px}
.sc-name{font-weight:600;font-size:14px}.sc-loc{font-size:11px;color:var(--txt-2);font-family:var(--mono)}
.stat-dot{width:9px;height:9px;border-radius:50%;flex:0 0 auto}
.stat-dot.online{background:var(--live);box-shadow:0 0 8px var(--live)}
.stat-dot.warning{background:var(--warn);box-shadow:0 0 8px var(--warn)}
.stat-dot.critical{background:var(--crit);box-shadow:0 0 8px var(--crit);animation:pulse 1.2s infinite}
.stat-dot.offline,.stat-dot.provisioning{background:var(--txt-dim)}
.chip{font-size:10px;font-family:var(--mono);padding:2px 8px;border-radius:20px;border:1px solid var(--line);color:var(--txt-2);text-transform:uppercase;letter-spacing:.4px}
.chip.online{color:var(--live);border-color:rgba(37,214,164,.4);background:rgba(37,214,164,.08)}
.chip.warning{color:var(--warn);border-color:rgba(245,165,36,.4);background:rgba(245,165,36,.08)}
.chip.critical{color:var(--crit);border-color:rgba(240,56,75,.4);background:rgba(240,56,75,.08)}
.chip.offline,.chip.provisioning{color:var(--txt-2)}
.sc-metrics{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.sc-metric .m-l{font-size:10px;color:var(--txt-2);text-transform:uppercase;letter-spacing:.4px}
.sc-metric .m-v{font-family:var(--mono);font-size:15px;font-weight:600;margin-top:2px}
.sc-metric .m-v small{font-size:10px;color:var(--txt-2);font-weight:400}
.sc-bars{display:flex;gap:5px;margin-top:13px}
.sc-bar{flex:1;height:4px;border-radius:3px;background:var(--panel-2);overflow:hidden}
.mix{display:flex;gap:12px;margin-top:11px;font-size:10.5px;color:var(--txt-2);font-family:var(--mono);flex-wrap:wrap}
.mix i{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px;vertical-align:middle}
.tariff-tag{margin-left:auto;font-family:var(--mono);font-size:10.5px;color:var(--pv)}

.alarm-row{display:flex;align-items:flex-start;gap:11px;padding:11px 16px;border-bottom:1px solid var(--line);font-size:12.5px}
.alarm-row:last-child{border-bottom:none}
.a-sev{width:8px;height:8px;border-radius:50%;margin-top:5px;flex:0 0 auto}
.a-sev.critical{background:var(--crit);box-shadow:0 0 7px var(--crit)}
.a-sev.warning{background:var(--warn);box-shadow:0 0 7px var(--warn)}
.a-sev.info{background:var(--grid)}
.a-body{flex:1;min-width:0}.a-msg{color:var(--txt);font-weight:500}
.a-meta{font-size:11px;color:var(--txt-2);font-family:var(--mono);margin-top:2px}
.a-time{font-family:var(--mono);font-size:11px;color:var(--txt-2);white-space:nowrap}
.alarm-row.unack{background:linear-gradient(90deg,rgba(240,56,75,.05),transparent)}

table.tbl{width:100%;border-collapse:collapse;font-size:12.5px}
table.tbl th{text-align:left;font-size:10.5px;letter-spacing:.5px;text-transform:uppercase;color:var(--txt-2);font-weight:600;padding:10px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
table.tbl td{padding:11px 14px;border-bottom:1px solid var(--line)}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tbody tr:hover td{background:var(--panel-2)}
table.tbl .mono{font-size:12px}

.btn{font-size:12.5px;font-weight:500;padding:8px 14px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--txt);cursor:pointer}
.btn:hover{border-color:var(--line-2)}.btn.ghost{background:transparent}.btn.sm{padding:4px 10px;font-size:11.5px}
.btn.primary{background:linear-gradient(135deg,var(--live),#159c81);border-color:transparent;color:#04140f;font-weight:600}
.btn.primary:hover{filter:brightness(1.05)}
.btn.danger{color:var(--crit);border-color:rgba(240,56,75,.35)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--panel)}
.seg button{border:none;background:transparent;color:var(--txt-2);font-family:var(--mono);font-size:11.5px;padding:6px 12px;cursor:pointer}
.seg button.on{background:var(--panel-2);color:var(--txt)}

.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.metric{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-sm);padding:12px 13px}
.metric .m-lab{font-size:10.5px;color:var(--txt-2);text-transform:uppercase;letter-spacing:.4px;display:flex;align-items:center;gap:6px}
.metric .m-lab i{width:7px;height:7px;border-radius:2px;display:inline-block}
.metric .m-num{font-family:var(--mono);font-size:20px;font-weight:600;margin-top:8px;letter-spacing:-.4px}
.metric .m-num small{font-size:11px;color:var(--txt-2);font-weight:400;margin-left:2px}
.metric .m-bar{height:5px;border-radius:4px;background:var(--panel);margin-top:9px;overflow:hidden}
.metric .m-bar i{display:block;height:100%;border-radius:4px}
.ring-wrap{display:flex;align-items:center;gap:16px}
.ring{position:relative;width:104px;height:104px;flex:0 0 auto}.ring svg{transform:rotate(-90deg)}
.ring .ring-c{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
.ring .ring-c b{font-family:var(--mono);font-size:22px;font-weight:600;display:block}
.ring .ring-c span{font-size:10px;color:var(--txt-2);text-transform:uppercase;letter-spacing:.5px}

.flow-svg{width:100%;height:auto;display:block}
.spark{width:100%;height:40px;display:block}
.legend{display:flex;flex-wrap:wrap;gap:16px;font-size:11.5px;color:var(--txt-2);font-family:var(--mono)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:middle}
.tag{font-family:var(--mono);font-size:10px;padding:2px 7px;border-radius:5px;background:var(--panel-2);color:var(--txt-2);border:1px solid var(--line)}
.notice{font-size:12px;color:var(--txt-2);background:var(--panel-2);border:1px dashed var(--line-2);border-radius:8px;padding:12px 14px;line-height:1.55}
.notice b{color:var(--txt)}
.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--txt-2);font-size:12.5px;cursor:pointer;margin-bottom:6px}
.back-link:hover{color:var(--txt)}
.muted{color:var(--txt-2)}.mt16{margin-top:16px}.mt12{margin-top:12px}

/* cameras */
.cam-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.cam{background:#05080F;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative}
.cam .cam-view{aspect-ratio:16/9;position:relative;overflow:hidden;background:repeating-linear-gradient(45deg,#0a0f18,#0a0f18 12px,#0c1220 12px,#0c1220 24px)}
.cam .scan{position:absolute;left:0;right:0;height:52px;background:linear-gradient(180deg,transparent,rgba(37,214,164,.10),transparent);animation:scan 4.2s linear infinite}
@keyframes scan{0%{top:-52px}100%{top:100%}}
.cam .cam-grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(79,169,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(79,169,255,.05) 1px,transparent 1px);background-size:34px 34px}
.cam .cam-off{position:absolute;inset:0;display:grid;place-items:center;color:var(--txt-dim);font-family:var(--mono);font-size:12px;background:#05080f}
.cam .cam-ov{position:absolute;inset:0;padding:10px 11px;display:flex;flex-direction:column;justify-content:space-between;pointer-events:none}
.cam .cam-top{display:flex;justify-content:space-between;align-items:center}
.cam .rec{display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:10px;color:#fff;background:rgba(0,0,0,.45);padding:3px 7px;border-radius:5px}
.cam .rec i{width:7px;height:7px;border-radius:50%;background:var(--crit);animation:pulse 1.4s infinite}
.cam .cam-ts{font-family:var(--mono);font-size:10px;color:#cfe0f5;background:rgba(0,0,0,.45);padding:3px 7px;border-radius:5px}
.cam .cam-name{font-size:12.5px;font-weight:600;color:#fff;text-shadow:0 1px 3px #000}
.cam .cam-sub{font-family:var(--mono);font-size:10px;color:#b9c9e0}
.cam .cam-foot{display:flex;justify-content:space-between;align-items:flex-end}
.cam-badge{position:absolute;top:10px;right:11px;font-family:var(--mono);font-size:9.5px;padding:2px 7px;border-radius:20px;color:#fff}

.report-item{display:flex;align-items:center;gap:13px;padding:13px 16px;border-bottom:1px solid var(--line)}
.report-item:last-child{border-bottom:none}
.report-item .r-ic{width:36px;height:36px;border-radius:9px;background:var(--panel-2);display:grid;place-items:center;color:var(--live)}
.report-item .r-t{font-weight:600;font-size:13px}.report-item .r-d{font-size:11px;color:var(--txt-2);font-family:var(--mono)}

/* empty state */
.empty{display:grid;place-items:center;text-align:center;padding:70px 20px;color:var(--txt-2)}
.empty .e-ic{width:56px;height:56px;border-radius:14px;background:var(--panel);border:1px solid var(--line);display:grid;place-items:center;color:var(--live);margin-bottom:16px}
.empty h2{color:var(--txt);font-size:17px;margin-bottom:6px}
.empty p{max-width:420px;margin-bottom:18px;line-height:1.6}

/* ---------- modal / provisioning wizard ---------- */
.modal-back{position:fixed;inset:0;background:rgba(5,8,15,.66);backdrop-filter:blur(3px);display:none;place-items:center;z-index:50;padding:24px}
.modal-back.open{display:grid}
.modal{width:min(680px,100%);max-height:88vh;overflow-y:auto;background:var(--bg-2);border:1px solid var(--line-2);border-radius:14px;box-shadow:0 24px 70px rgba(0,0,0,.6)}
.modal-h{display:flex;align-items:center;gap:12px;padding:18px 22px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg-2);z-index:1}
.modal-h h2{font-size:16px;font-weight:600}.modal-h p{font-size:12px;color:var(--txt-2)}
.modal-h .x{margin-left:auto;cursor:pointer;color:var(--txt-2);width:30px;height:30px;display:grid;place-items:center;border-radius:8px}
.modal-h .x:hover{background:var(--panel);color:var(--txt)}
.modal-b{padding:22px}
.steps{display:flex;gap:8px;padding:0 22px 16px}
.step{flex:1;display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--txt-dim)}
.step .num{width:22px;height:22px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;font-family:var(--mono);font-size:11px;flex:0 0 auto}
.step.on{color:var(--txt)}.step.on .num{background:var(--live);border-color:var(--live);color:#04140f;font-weight:600}
.step.done .num{background:var(--panel-2);border-color:var(--live);color:var(--live)}
.fld{margin-bottom:15px}
.fld label{display:block;font-size:11.5px;color:var(--txt-2);margin-bottom:6px;font-weight:500}
.fld label .req{color:var(--crit)}
.fld input,.fld select{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:8px;color:var(--txt);padding:10px 12px;font-size:13px;font-family:var(--mono)}
.fld input:focus,.fld select:focus{outline:none;border-color:var(--live);box-shadow:0 0 0 3px rgba(37,214,164,.12)}
.fld .hint{font-size:10.5px;color:var(--txt-dim);margin-top:5px}
.fld-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fld-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.wizard-foot{display:flex;gap:10px;padding:16px 22px;border-top:1px solid var(--line);position:sticky;bottom:0;background:var(--bg-2)}
.wizard-page{display:none}.wizard-page.on{display:block}
.cost-preview{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin-top:6px}
.cost-preview .cp-row{display:flex;justify-content:space-between;font-family:var(--mono);font-size:12.5px;padding:4px 0;color:var(--txt-2)}
.cost-preview .cp-row b{color:var(--txt)}
.meter-add{display:flex;gap:10px;align-items:flex-end;margin-bottom:10px}
.meter-list{display:flex;flex-direction:column;gap:8px;margin-top:8px}
.meter-chip{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:9px 12px;font-size:12px}
.meter-chip .mc-x{margin-left:auto;color:var(--txt-2);cursor:pointer}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--panel);border:1px solid var(--live);color:var(--txt);padding:12px 18px;border-radius:10px;font-size:13px;box-shadow:var(--shadow);z-index:80;display:none}
.toast.show{display:block;animation:fade .2s ease}

@media(max-width:1180px){.kpis{grid-template-columns:repeat(3,1fr)}.grid-3{grid-template-columns:1fr 1fr}.cam-grid{grid-template-columns:1fr 1fr}}
@media(max-width:820px){.app{grid-template-columns:1fr}.side,.brand{display:none}.topbar{grid-column:1}.main{grid-column:1}
  .kpis{grid-template-columns:1fr 1fr}.grid-2,.grid-3,.grid-4,.cam-grid,.metric-grid,.fld-row,.fld-row-3{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{animation:none!important}}

/* ===================== AUTH + USERS (added) ===================== */
/* login / first-run gate */
.auth-gate{position:fixed;inset:0;z-index:100;display:none;place-items:center;padding:24px;
  background:radial-gradient(1000px 500px at 70% -10%,rgba(37,214,164,.10),transparent 60%),
  radial-gradient(900px 500px at 0% 110%,rgba(79,169,255,.08),transparent 60%),var(--bg)}
.auth-gate.show{display:grid}
.auth-card{width:min(400px,100%);background:var(--bg-2);border:1px solid var(--line-2);border-radius:16px;padding:30px 28px;box-shadow:0 30px 80px rgba(0,0,0,.55)}
.auth-brand{display:flex;align-items:center;gap:11px;margin-bottom:22px}
.auth-brand .logo{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--live),#12907a);display:grid;place-items:center;box-shadow:0 0 0 1px rgba(37,214,164,.35),0 0 16px rgba(37,214,164,.3)}
.auth-brand .logo svg{width:18px;height:18px}
.auth-brand b{font-weight:600;font-size:15px;letter-spacing:.3px}
.auth-brand span{display:block;font-size:9.5px;color:var(--txt-2);letter-spacing:1.6px;margin-top:-1px}
.auth-card h1{font-size:20px;font-weight:600;margin-bottom:4px}
.auth-sub{font-size:12.5px;color:var(--txt-2);margin-bottom:20px}
.auth-msg{font-size:12px;color:var(--crit);min-height:16px;margin:2px 0 8px;font-family:var(--mono)}
.auth-msg.ok{color:var(--live)}
.auth-hint{font-size:11.5px;color:var(--txt-dim);text-align:center;margin-top:16px;line-height:1.5}

/* toggle switch (suspend/activate) */
.switch{position:relative;display:inline-block;width:42px;height:23px;flex:0 0 auto;cursor:pointer;vertical-align:middle}
.switch input{opacity:0;width:0;height:0}
.switch .track{position:absolute;inset:0;background:var(--panel-2);border:1px solid var(--line-2);border-radius:20px;transition:.2s}
.switch .knob{position:absolute;left:3px;top:2.5px;width:17px;height:17px;border-radius:50%;background:var(--txt-2);transition:.2s}
.switch input:checked + .track{background:rgba(37,214,164,.22);border-color:var(--live)}
.switch input:checked + .track .knob{transform:translateX(19px);background:var(--live);box-shadow:0 0 8px var(--live)}
.switch.disabled{opacity:.4;cursor:not-allowed;pointer-events:none}

/* role badges + status pills */
.role-badge{font-family:var(--mono);font-size:10px;padding:2px 9px;border-radius:20px;text-transform:uppercase;letter-spacing:.4px;border:1px solid var(--line)}
.role-badge.administrator{color:var(--pv);border-color:rgba(245,183,46,.4);background:rgba(245,183,46,.08)}
.role-badge.manager{color:var(--grid);border-color:rgba(79,169,255,.4);background:rgba(79,169,255,.08)}
.role-badge.operator{color:var(--live);border-color:rgba(37,214,164,.4);background:rgba(37,214,164,.08)}
.status-pill{font-family:var(--mono);font-size:11px;display:inline-flex;align-items:center;gap:6px}
.status-pill i{width:7px;height:7px;border-radius:50%}
.status-pill.active i{background:var(--live);box-shadow:0 0 7px var(--live)}
.status-pill.suspended i{background:var(--txt-dim)}
.status-pill.suspended{color:var(--txt-2)}
.usr-role-sel{background:var(--panel);border:1px solid var(--line);border-radius:7px;color:var(--txt);padding:5px 8px;font-size:11.5px;font-family:var(--mono)}
.self-tag{font-family:var(--mono);font-size:9.5px;color:var(--txt-dim);border:1px solid var(--line);border-radius:5px;padding:1px 6px;margin-left:6px}

/* topbar user menu */
.user{cursor:pointer;position:relative}
.user-menu{position:absolute;top:44px;right:0;min-width:180px;background:var(--bg-2);border:1px solid var(--line-2);border-radius:10px;box-shadow:0 16px 40px rgba(0,0,0,.5);padding:6px;display:none;z-index:20}
.user-menu.show{display:block}
.user-menu .um-head{padding:9px 11px;border-bottom:1px solid var(--line);margin-bottom:4px}
.user-menu .um-head b{font-size:12.5px}.user-menu .um-head span{font-size:10.5px;color:var(--txt-2);font-family:var(--mono)}
.user-menu button{width:100%;text-align:left;background:transparent;border:none;color:var(--txt);padding:9px 11px;border-radius:7px;font-size:12.5px;cursor:pointer}
.user-menu button:hover{background:var(--panel)}

/* permission-based visibility */
body:not(.role-administrator) .admin-only{display:none !important}
body.role-operator .provision-only{display:none !important}

/* ===================== SERIAL / QR (added) ===================== */
.grp-label{display:block;font-size:11px;color:var(--txt-2);font-weight:600;letter-spacing:.4px;text-transform:uppercase;margin:2px 0 8px}
.serial-row{display:flex;gap:8px;align-items:stretch}
.serial-row input{flex:1}
.scan-btn{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.scan-btn svg{width:15px;height:15px}
.meter-add{flex-wrap:wrap}

/* meter chip serial */
.meter-chip .mc-sn{font-family:var(--mono);font-size:10.5px;color:var(--live);margin-left:6px}

/* device serial cell */
.sn-cell{font-family:var(--mono);font-size:11.5px;color:var(--txt)}
.sn-none{color:var(--txt-dim)}

/* scanner */
.scanner{position:relative;width:100%;aspect-ratio:4/3;background:#05080f;border:1px solid var(--line-2);border-radius:12px;overflow:hidden}
.scanner video{width:100%;height:100%;object-fit:cover;display:block}
.scan-reticle{position:absolute;inset:0;pointer-events:none;
  background:
   linear-gradient(var(--live),var(--live)) left top,
   linear-gradient(var(--live),var(--live)) left top,
   linear-gradient(var(--live),var(--live)) right top,
   linear-gradient(var(--live),var(--live)) right top,
   linear-gradient(var(--live),var(--live)) left bottom,
   linear-gradient(var(--live),var(--live)) left bottom,
   linear-gradient(var(--live),var(--live)) right bottom,
   linear-gradient(var(--live),var(--live)) right bottom;
  background-repeat:no-repeat;background-size:22px 3px,3px 22px;
  margin:22%;filter:drop-shadow(0 0 6px var(--live))}