:root{
  --bg:#0d1117;
  --panel:#161b22;
  --panel-2:#1c232d;
  --line:#2b333d;
  --txt:#e6edf3;
  --muted:#8b98a5;
  --accent:#ff5d2e;      /* hi-vis orange */
  --accent-2:#3fb950;    /* success green */
  --qr:#58a6ff;          /* location blue */
  --danger:#f85149;
  --radius:16px;
  --mono:"JetBrains Mono",ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  font-family:"Space Grotesk",system-ui,sans-serif;
  background:
    radial-gradient(120% 80% at 50% -10%, #1b2330 0%, var(--bg) 55%);
  color:var(--txt);
  min-height:100dvh;
  display:flex;flex-direction:column;
  overscroll-behavior:none;
}

/* ---------- topbar ---------- */
.topbar{
  position:sticky;top:0;z-index:20;
  padding:14px 16px 0;
  background:linear-gradient(var(--bg),rgba(13,17,23,.85));
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.brand-mark{
  font-family:var(--mono);font-weight:700;letter-spacing:-2px;
  color:var(--accent);font-size:20px;
}
.brand h1{font-size:18px;font-weight:700;letter-spacing:-.3px}
.tabs{display:flex;gap:4px}
.tab{
  flex:1;padding:11px;border:none;background:transparent;color:var(--muted);
  font:600 14px "Space Grotesk";cursor:pointer;border-radius:10px 10px 0 0;
  border-bottom:2px solid transparent;transition:.15s;
}
.tab.active{color:var(--txt);border-bottom-color:var(--accent)}

main{flex:1;display:flex;flex-direction:column;max-width:560px;width:100%;margin:0 auto;padding:16px}
.view{display:none;flex-direction:column;gap:16px;animation:fade .25s}
.view.active{display:flex}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- mode switch ---------- */
.mode-switch{
  display:flex;background:var(--panel);border:1px solid var(--line);
  border-radius:12px;padding:4px;gap:4px;
}
.mode{
  flex:1;padding:10px;border:none;background:transparent;color:var(--muted);
  font:600 14px "Space Grotesk";border-radius:9px;cursor:pointer;transition:.15s;
}
.mode.active{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(255,93,46,.35)}

/* ---------- scanner ---------- */
.scanner-wrap{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:#000;aspect-ratio:4/3;border:1px solid var(--line);
  box-shadow:0 12px 40px rgba(0,0,0,.5);
}
#reader{width:100%;height:100%}
#reader video{width:100%!important;height:100%!important;object-fit:cover}
/* hide html5-qrcode default chrome */
#reader img[alt="Info icon"],#reader__dashboard_section_csr span{display:none!important}
#reader__scan_region{background:transparent!important}
.reader-overlay{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;gap:6px;
  background:repeating-linear-gradient(45deg,#11161d,#11161d 12px,#141a22 12px,#141a22 24px);
  cursor:pointer;
}
.reader-overlay[hidden]{display:none}
.overlay-title{font-weight:700;font-size:16px}
.overlay-sub{color:var(--muted);font-size:13px}
.scan-line{
  position:absolute;left:8%;right:8%;height:3px;top:0;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
  box-shadow:0 0 16px 2px var(--accent);opacity:0;border-radius:3px;
}
.scanner-wrap.live .scan-line{opacity:1;animation:sweep 2.4s ease-in-out infinite}
@keyframes sweep{0%{top:12%}50%{top:88%}100%{top:12%}}

.cam-controls{display:flex;gap:10px}

/* ---------- buttons ---------- */
.btn{
  border:none;border-radius:12px;padding:13px 16px;font:600 15px "Space Grotesk";
  cursor:pointer;transition:.15s;flex:1;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:var(--panel-2);color:var(--txt);border:1px solid var(--line)}
.btn.live{background:var(--danger)}

/* ---------- flow ---------- */
.flow-panel{display:flex;flex-direction:column;gap:12px}

/* active location card */
.active-loc{
  border-radius:16px;padding:16px;transition:.2s;
  background:linear-gradient(135deg,rgba(88,166,255,.16),rgba(88,166,255,.04));
  border:1px solid var(--qr);
}
.active-loc.empty{
  background:var(--panel);border:1px dashed var(--line);
}
.al-top{display:flex;align-items:center;justify-content:space-between}
.al-label{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--qr)}
.active-loc.empty .al-label{color:var(--muted)}
.al-value{
  font-family:var(--mono);font-weight:700;font-size:26px;margin-top:6px;word-break:break-all;color:var(--txt);
}
.active-loc.empty .al-value{font-size:15px;font-weight:500;color:var(--muted)}
.al-count{margin-top:8px;font-size:13px;color:var(--muted);font-weight:600}

/* session list */
.session-list{display:flex;flex-direction:column;gap:6px}
.session-list:empty{display:none}
.srow{
  display:flex;align-items:center;gap:10px;background:var(--panel);
  border:1px solid var(--line);border-radius:11px;padding:11px 13px;
  animation:slideIn .25s;
}
@keyframes slideIn{from{opacity:0;transform:translateX(-8px)}to{opacity:1;transform:none}}
.srow-no{
  display:grid;place-items:center;min-width:24px;height:24px;border-radius:7px;
  background:var(--accent-2);color:#06210d;font-family:var(--mono);font-weight:700;font-size:12px;
}
.srow-bc{font-family:var(--mono);font-weight:600;font-size:14px;word-break:break-all}

/* manual */
.manual-wrap{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.manual-wrap summary{
  padding:13px 15px;cursor:pointer;font-weight:600;font-size:14px;color:var(--muted);list-style:none;
}
.manual-wrap summary::-webkit-details-marker{display:none}
.manual-wrap[open] summary{border-bottom:1px solid var(--line)}
.manual{display:flex;flex-direction:column;gap:8px;padding:13px}
.manual input,.searchbar input{
  width:100%;padding:13px;border-radius:11px;border:1px solid var(--line);
  background:var(--panel);color:var(--txt);font:500 15px var(--mono);
}
.manual input:focus,.searchbar input:focus{outline:none;border-color:var(--accent)}

.hint{color:var(--muted);font-size:14px;line-height:1.5}

/* ---------- status ---------- */
.status{
  border-radius:12px;padding:13px 15px;font-weight:600;font-size:14px;
  border:1px solid var(--line);background:var(--panel);transition:.2s;
}
.status.idle{color:var(--muted)}
.status.armed{color:var(--accent);border-color:var(--accent)}
.status.ok{color:var(--accent-2);border-color:var(--accent-2);background:rgba(63,185,80,.08)}
.status.err{color:var(--danger);border-color:var(--danger);background:rgba(248,81,73,.08)}

/* ---------- lookup result ---------- */
#lookup-result:empty{display:none}
.result-card{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px;
  display:flex;flex-direction:column;gap:6px;
}
.result-card .big{font-family:var(--mono);font-size:22px;font-weight:700}
.result-card .loc{color:var(--qr);font-family:var(--mono);font-weight:700;font-size:18px}
.result-card .sub{color:var(--muted);font-size:13px}
.loc-items{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.loc-items .li{font-family:var(--mono);font-size:14px;padding:8px 10px;background:var(--panel-2);border-radius:9px}

/* ---------- list ---------- */
.searchbar{display:flex;align-items:center;gap:10px}
.searchbar input{flex:1}
.count{
  font-family:var(--mono);font-weight:700;background:var(--panel);border:1px solid var(--line);
  padding:9px 13px;border-radius:11px;color:var(--muted);min-width:42px;text-align:center;
}
.list{display:flex;flex-direction:column;gap:10px}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px;
  display:grid;grid-template-columns:1fr auto;gap:6px 12px;align-items:center;
}
.card .name{font-weight:700;font-size:15px}
.card .name.unnamed{color:var(--muted);font-weight:500;font-style:italic}
.card .bc{font-family:var(--mono);font-size:12px;color:var(--muted)}
.card .pill{
  grid-row:1/3;align-self:center;justify-self:end;
  font-family:var(--mono);font-weight:700;font-size:14px;color:#06243f;
  background:var(--qr);padding:8px 12px;border-radius:10px;white-space:nowrap;
}
.card .meta{font-size:11px;color:var(--muted);font-family:var(--mono)}
.card-actions{grid-column:1/3;display:flex;gap:8px;margin-top:4px;border-top:1px solid var(--line);padding-top:10px}
.mini{
  border:1px solid var(--line);background:var(--panel-2);color:var(--muted);
  border-radius:9px;padding:7px 11px;font:600 12px "Space Grotesk";cursor:pointer;
}
.mini.danger{color:var(--danger)}
.empty-state{text-align:center;color:var(--muted);padding:48px 16px;font-size:14px}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:24px;transform:translate(-50%,260%);opacity:0;
  background:var(--accent-2);color:#06210d;font-weight:700;padding:13px 20px;
  border-radius:12px;z-index:50;transition:transform .3s cubic-bezier(.2,1.3,.4,1);
  box-shadow:0 10px 30px rgba(0,0,0,.4);max-width:90vw;text-align:center;
}
.toast.show{transform:translate(-50%,0);opacity:1}
.toast.err{background:var(--danger);color:#fff}

/* ---------- modal ---------- */
.modal{
  position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:20px;
  background:rgba(0,0,0,.6);backdrop-filter:blur(3px);animation:fade .2s;
}
.modal[hidden]{display:none}
.modal-card{
  background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px;
  width:100%;max-width:380px;display:flex;flex-direction:column;gap:12px;
  box-shadow:0 20px 60px rgba(0,0,0,.6);
}
.modal-title{font-weight:700;font-size:17px}
.modal-sub{font-family:var(--mono);font-size:13px;color:var(--muted);word-break:break-all}
.modal-card input{
  width:100%;padding:13px;border-radius:11px;border:1px solid var(--line);
  background:var(--panel-2);color:var(--txt);font:500 15px "Space Grotesk";
}
.modal-card input:focus{outline:none;border-color:var(--accent)}
.modal-actions{display:flex;gap:10px}