*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR",Roboto,sans-serif;background:#0f172a;color:#e5e7eb;line-height:1.55}
.wrap{max-width:720px;margin:0 auto;padding:16px}
header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
h1{font-size:1.6rem;margin:.2em 0 .1em;color:#fff}
h2{font-size:1.15rem;margin:0 0 .5em;color:#fff}
.tag{color:#cbd5e1;margin:.2em 0 1em}
.lang{color:#93c5fd;border:1px solid #334155;border-radius:8px;padding:6px 10px;text-decoration:none;white-space:nowrap}
section{background:#1e293b;border-radius:14px;padding:16px;margin:14px 0}
.safety{background:#3b1d1d;border:1px solid #b91c1c}
.safety h2{color:#fecaca}
.muted{color:#94a3b8;font-size:.92rem}
.btn{background:#2563eb;color:#fff;border:0;border-radius:10px;padding:12px 16px;font-size:1rem;font-weight:600;cursor:pointer}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.small{padding:8px 12px;font-size:.9rem}
.btn.danger{background:#7f1d1d}
.btn.ghost{background:#334155}
.btn.big{padding:18px 24px;font-size:1.25rem;background:#16a34a}
.row{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0}
.person{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid #334155}
.person img{width:56px;height:56px;object-fit:cover;border-radius:50%;background:#334155}
.pinfo{flex:1;display:flex;flex-direction:column}
label{display:block;margin:10px 0 4px;font-weight:600}
input[type=text]{width:100%;padding:10px;border-radius:8px;border:1px solid #475569;background:#0f172a;color:#fff;font-size:1rem}
input[type=range]{width:100%}
select{padding:10px;border-radius:8px;background:#0f172a;color:#fff;border:1px solid #475569;font-size:1rem}
.prev{width:96px;height:96px;object-fit:cover;border-radius:12px;display:block;margin:8px 0}
.setting{margin:12px 0}
.setting .v{float:right;color:#93c5fd}
.check{display:flex;gap:10px;align-items:center;font-weight:500}
.check input{width:20px;height:20px}
.camwrap{position:relative;background:#000;border-radius:12px;overflow:hidden;display:none}
body.running .camwrap{display:block}
video{width:100%;display:block;transform:scaleX(-1);max-height:300px;object-fit:cover}
.status{margin:12px 0;padding:14px;border-radius:12px;font-size:1.2rem;font-weight:700;text-align:center;background:#334155}
.status.good{background:#14532d;color:#bbf7d0}
.status.warn{background:#78350f;color:#fde68a}
.status.calib{background:#1e3a8a;color:#bfdbfe}
.metrics{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.metrics div{background:#0f172a;border-radius:10px;padding:10px;text-align:center}
.good{color:#86efac}.bad{color:#fca5a5}
#alarm{position:fixed;inset:0;z-index:1000;background:#b91c1c;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;animation:flash .5s infinite alternate}
#alarm[hidden]{display:none}
@keyframes flash{from{background:#b91c1c}to{background:#f59e0b}}
#alarmPhoto{max-width:80vw;max-height:48vh;border-radius:20px;border:6px solid #fff;object-fit:cover}
#alarmName{font-size:3rem;font-weight:900;margin:12px 0 0}
#alarmText{font-size:2.2rem;font-weight:900;margin:6px 0}
#alarmReason{font-size:1.2rem;opacity:.95}
#alarmClose{margin-top:20px}
.warnbar{background:#7c2d12;color:#fed7aa;padding:10px;border-radius:10px;margin:10px 0}
body.dim{background:#000}
body.dim section,body.dim .status{background:#050505}
body.dim .camwrap{display:none}
body.dim .status.good{background:#052e16}
ul{padding-left:1.2em;margin:.4em 0}
footer{text-align:center;color:#64748b;padding:20px 0 40px}