:root{
  --bg:#f5f7f6;--panel:#ffffff;--panel2:#f0f3f2;--line:#e3e8e6;--text:#12201b;--muted:#64756e;
  --acc:#0f9d6b;--acc2:#0b7d55;--acc-soft:#e3f5ee;--warn:#b7791f;--warn-soft:#fdf3e1;--bad:#c2413a;--bad-soft:#fde9e7;
  --off:#7b8a84;--off-soft:#eef1f0;--shadow:0 1px 2px rgba(16,32,27,.05),0 4px 16px rgba(16,32,27,.04);
  --r:12px;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0d1412;--panel:#131d1a;--panel2:#18241f;--line:#22312c;--text:#e4ece9;--muted:#8fa29a;
  --acc:#2bc48a;--acc2:#53d6a3;--acc-soft:#123428;--warn:#e0a84a;--warn-soft:#33270f;--bad:#f07a71;--bad-soft:#3a1a17;
  --off:#8a9993;--off-soft:#1d2925;--shadow:none;
}}
*{box-sizing:border-box}
html,body{margin:0}
body{font:15px/1.5 Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:var(--acc2);text-decoration:none}
a:hover{text-decoration:underline}
.ic{width:18px;height:18px;flex:none}
h1,h2,h3{margin:0;font-weight:650;letter-spacing:-.01em}
h2{font-size:17px}
h3{font-size:15px}
code,.mono{font-family:var(--mono);font-size:13px}
small,.muted{color:var(--muted)}

/* shell */
.shell{display:flex;min-height:100vh}
.side{width:244px;flex:none;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:18px 12px;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--text);padding:4px 10px 18px}
.brand:hover{text-decoration:none}
.logo{width:32px;height:32px;border-radius:9px;background:var(--acc);color:#fff;display:grid;place-items:center}
.logo .ic{width:18px;height:18px}
.side nav{display:flex;flex-direction:column;gap:2px;flex:1}
.side a:not(.brand){display:flex;align-items:center;gap:11px;padding:9px 10px;border-radius:9px;color:var(--muted);font-weight:500}
.side a:not(.brand):hover{background:var(--panel2);color:var(--text);text-decoration:none}
.side a.on{background:var(--acc-soft);color:var(--acc2)}
.side a small{display:block;font-size:12px;font-weight:400}
.side-foot{border-top:1px solid var(--line);padding-top:10px;display:flex;flex-direction:column;gap:2px}
.main{flex:1;min-width:0;padding:22px 28px 60px;max-width:1240px}
.top{display:flex;align-items:center;gap:12px;margin-bottom:20px;min-height:40px}
.top h1{font-size:22px;flex:1}
.menu{display:none}
.scrim{display:none}
.imp{background:var(--warn-soft);color:var(--warn);text-align:center;padding:8px;font-size:14px;border-bottom:1px solid var(--line)}

/* elements */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px 20px;margin-bottom:18px}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.grid{display:grid;gap:14px}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:var(--shadow)}
.stat .k{color:var(--muted);font-size:13px}
.stat .v{font-size:26px;font-weight:700;margin-top:4px;font-variant-numeric:tabular-nums}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line);background:var(--panel);color:var(--text);padding:8px 14px;border-radius:9px;font:inherit;font-weight:550;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--panel2);text-decoration:none}
.btn.pri{background:var(--acc);border-color:var(--acc);color:#fff}
.btn.pri:hover{background:var(--acc2);border-color:var(--acc2)}
.btn.danger{color:var(--bad)}
.btn.danger:hover{background:var(--bad-soft)}
.btn.sm{padding:5px 10px;font-size:13px}
.btn:disabled{opacity:.55;cursor:default}
.iconbtn{border:1px solid var(--line);background:var(--panel);color:var(--text);width:38px;height:38px;border-radius:9px;display:grid;place-items:center;cursor:pointer}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.right{margin-left:auto}
.inline{display:inline}

form .f{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}
label{font-weight:550;font-size:14px}
.hint{font-size:13px;color:var(--muted);font-weight:400}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=url],input[type=file],select,textarea{
  width:100%;font:inherit;color:var(--text);background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:9px 12px}
textarea{min-height:96px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--acc-soft);border-color:var(--acc)}

.tbl-wrap{overflow-x:auto;margin:0 -20px;padding:0 20px}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em;padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:11px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:0}
td.wrap{max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.empty{text-align:center;color:var(--muted);padding:34px 10px}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;padding:3px 9px;border-radius:99px;white-space:nowrap}
.badge i{width:7px;height:7px;border-radius:50%;background:currentColor}
.badge.ok{background:var(--acc-soft);color:var(--acc2)}
.badge.warn{background:var(--warn-soft);color:var(--warn)}
.badge.bad{background:var(--bad-soft);color:var(--bad)}
.badge.off{background:var(--off-soft);color:var(--off)}
.tag{font-size:12px;padding:2px 8px;border-radius:6px;background:var(--panel2);color:var(--muted);font-weight:600}

.flash{padding:11px 14px;border-radius:10px;margin-bottom:16px;border:1px solid var(--line);background:var(--panel)}
.flash.ok{background:var(--acc-soft);color:var(--acc2);border-color:transparent}
.flash.err{background:var(--bad-soft);color:var(--bad);border-color:transparent}

.keybox{display:flex;gap:8px;align-items:center;background:var(--panel2);border:1px solid var(--line);border-radius:9px;padding:6px 6px 6px 12px}
.keybox code{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
pre{background:#0f1a16;color:#d6e6df;border-radius:10px;padding:14px 16px;overflow-x:auto;font:13px/1.55 var(--mono);margin:8px 0 0}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:6px}
.tabs button{border:1px solid var(--line);background:var(--panel);color:var(--muted);padding:5px 11px;border-radius:8px;cursor:pointer;font:inherit;font-size:13px;font-weight:600}
.tabs button.on{background:var(--acc-soft);color:var(--acc2);border-color:transparent}

.qr-box{display:flex;gap:26px;align-items:flex-start;flex-wrap:wrap}
.qr{width:276px;height:276px;border-radius:14px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;flex:none;overflow:hidden}
.qr img{width:264px;height:264px}
.steps{margin:0;padding-left:20px;color:var(--muted)}
.steps li{margin-bottom:6px}
.pair{font:700 28px/1 var(--mono);letter-spacing:.18em;color:var(--acc2);background:var(--acc-soft);padding:14px 18px;border-radius:12px;display:inline-block}
.spin{width:28px;height:28px;border:3px solid var(--line);border-top-color:var(--acc);border-radius:50%;animation:sp 0.9s linear infinite}
@keyframes sp{to{transform:rotate(1turn)}}
.dl{display:grid;grid-template-columns:150px 1fr;gap:8px 14px;font-size:14px}
.dl dt{color:var(--muted)}
.dl dd{margin:0;min-width:0;overflow-wrap:anywhere}

/* auth */
body.auth{display:grid;place-items:center;min-height:100vh;padding:20px}
.auth-card{width:100%;max-width:390px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:var(--shadow)}
.brand.big{padding:0 0 20px;font-size:18px}
.auth-card .btn{width:100%;padding:11px}

@media (max-width:960px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:1fr}}
@media (max-width:760px){
  .side{position:fixed;left:0;top:0;z-index:30;transform:translateX(-100%);transition:transform .2s}
  body.nav-open .side{transform:none}
  body.nav-open .scrim{display:block;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:20}
  .menu{display:grid}
  .main{padding:14px 16px 50px}
  .g2{grid-template-columns:1fr}
  .top h1{font-size:19px}
  .dl{grid-template-columns:1fr;gap:2px}.dl dd{margin-bottom:8px}
  .qr{width:100%;max-width:300px;height:auto;aspect-ratio:1}
}