:root{--bg:#eef4f4;--panel:#fff;--text:#17343d;--muted:#70848a;--line:#d8e4e6;--brand:#13886d;--brand-dark:#0d6b56;--dark:#123a43;--danger:#a33a3a}
.hidden{display:none!important}*{box-sizing:border-box}
body{margin:0;background:var(--bg);font-family:Arial,sans-serif;color:var(--text)}
button,input,select,textarea{font:inherit}button{border:0;border-radius:10px;padding:10px 13px;cursor:pointer;font-weight:700}
button:disabled{cursor:wait;opacity:.65}input,select,textarea{width:100%;padding:11px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text)}
header{position:sticky;top:0;z-index:10;background:var(--dark);color:#fff;padding:13px 16px;box-shadow:0 2px 12px #0002}
.head,.wrap{max-width:1280px;margin:auto}.head{display:flex;justify-content:space-between;align-items:center;gap:12px}
.brand{font-weight:800;font-size:19px}.subtitle{color:#c6d9dd;font-size:12px}.account{display:flex;align-items:center;gap:9px;font-size:13px}.header-button{background:#ffffff18;color:#fff;padding:8px 10px}
.wrap{padding:16px}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:15px;box-shadow:0 4px 18px #123a4309}
.login-card{width:min(100%,420px);margin:9vh auto}.login-card h1{margin-top:0}.login-card form{display:grid;gap:13px}.full{width:100%}
.muted,small{color:var(--muted);font-size:12px}.notice{padding:12px;border-radius:10px;margin-bottom:14px;background:#fff3ce;color:#6b4f00}.notice.ok{background:#dff4e8;color:#1f6140}.notice.bad,.errorbox{background:#fde5e5;color:#7d2525}.errorbox{padding:10px;border-radius:9px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}.metric b{font-size:27px;display:block}
.toolbar,.row{display:flex;gap:9px;flex-wrap:wrap;align-items:center}.toolbar{margin-bottom:14px}.search{flex:1;min-width:230px}.status-filter{width:220px}
.primary{background:var(--brand);color:#fff}.primary:hover{background:var(--brand-dark)}.secondary{background:#e5eeee;color:var(--text)}.danger-soft{background:#f8e5e5;color:var(--danger)}.danger{background:var(--danger);color:#fff}
.layout{display:grid;grid-template-columns:380px 1fr;gap:14px}.list{display:flex;flex-direction:column;gap:8px;max-height:72vh;overflow:auto}
.device{padding:12px;border:1px solid var(--line);border-radius:12px;cursor:pointer;background:#fff}.device:hover{border-color:#9dc8bf}.device.active{border:2px solid var(--brand)}
.device-title{margin:5px 0}.top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.top h2,.top h3{margin-top:0}.badge{background:#edf3f4;padding:5px 9px;border-radius:999px;font-size:12px;white-space:nowrap}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.wide{grid-column:1/-1}.section{margin-top:18px}.block{display:block}label{font-size:13px;color:var(--muted)}label input,label select,label textarea{margin-top:5px}.empty{padding:45px;text-align:center}
.entry{border-left:4px solid var(--brand);background:#f7fbfa;padding:11px;border-radius:9px;margin-bottom:8px}.entry-head{font-size:12px;color:var(--muted);margin-bottom:6px}.entry-text{white-space:pre-wrap}.history-note{margin-top:-6px}
.qrgrid{display:grid;grid-template-columns:170px 1fr;gap:16px;align-items:center}.qr-frame{padding:8px;background:#fff;border:1px solid var(--line);border-radius:12px;width:170px;height:170px}.qr-frame img{width:100%;height:100%}
dialog{border:0;border-radius:16px;width:min(94%,660px);padding:0;color:var(--text)}dialog::backdrop{background:#0008}.dialog{padding:18px}.dialog h2{margin-top:0}.actions{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}
#scannerVideo{width:100%;max-height:55vh;background:#0b1e23;border-radius:12px}.users-list{display:grid;gap:7px;margin-bottom:20px}.user-row{display:flex;justify-content:space-between;padding:10px;background:#f4f8f8;border-radius:9px}
@media(max-width:880px){.layout{grid-template-columns:1fr}.metrics{grid-template-columns:repeat(2,1fr)}.grid{grid-template-columns:1fr}.wide{grid-column:auto}.qrgrid{grid-template-columns:1fr}.list{max-height:none}.account span{display:none}}
@media print{header,.toolbar,.metrics,.row button{display:none!important}.wrap{padding:0}.card{box-shadow:none;border:0}.layout{display:block}.layout>section:first-child{display:none}}