:root{
  --bg:#0f1419; --panel:#161d26; --panel2:#1d2632; --line:#27313d;
  --text:#e6edf3; --muted:#8b98a5; --accent:#2ea3ff; --pos:#3fb950; --neg:#f85149;
  --warn:#d29922; --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.55;font-size:15px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:24px;margin:0 0 16px}
h2{font-size:19px;margin:24px 0 12px}
h3{font-size:16px;margin:16px 0 8px}
code{background:var(--panel2);padding:2px 6px;border-radius:4px;font-size:.9em}

.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;
  background:var(--panel);border-bottom:1px solid var(--line);padding:12px 20px;flex-wrap:wrap}
.brand{font-weight:600;font-size:17px;color:var(--text)}
.topbar nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.topbar nav a{color:var(--muted)}
.topbar nav a:hover{color:var(--text)}
.inline{display:inline}
button.link{background:none;border:none;color:var(--muted);cursor:pointer;font:inherit;padding:0}
button.link:hover{color:var(--text);text-decoration:underline}

.wrap{max-width:1100px;margin:0 auto;padding:24px 20px;min-height:60vh}
.foot{max-width:1100px;margin:0 auto;padding:16px 20px;color:var(--muted);font-size:12px;
  display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;border-top:1px solid var(--line)}
.foot-contact a{color:var(--muted);border-bottom:1px solid transparent}
.foot-contact a:hover{color:var(--accent);border-bottom-color:currentColor}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;margin-bottom:16px}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.stat{text-align:center}
.stat .num{font-size:28px;font-weight:600}
.stat .lbl{color:var(--muted);font-size:13px}

.flash{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:14px}
.flash-error{background:#3d1418;border:1px solid #5c1e24;color:#ff9c9c}
.flash-success{background:#0f2d17;border:1px solid #1d4d2a;color:#7ee787}
.flash-info{background:#0d2333;border:1px solid #1a3d55;color:#8ecdf7}

label{display:block;margin:12px 0 4px;font-size:14px;color:var(--muted)}
input[type=text],input[type=email],input[type=password],input[type=number],select,textarea{
  width:100%;padding:10px 12px;background:var(--panel2);border:1px solid var(--line);
  border-radius:8px;color:var(--text);font:inherit;font-size:14px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}

.btn{display:inline-block;padding:10px 18px;background:var(--accent);color:#052434;
  border:none;border-radius:8px;font:inherit;font-weight:600;cursor:pointer;font-size:14px}
.btn:hover{filter:brightness(1.1);text-decoration:none}
.btn-sm{padding:6px 12px;font-size:13px}
.btn-danger{background:var(--neg);color:#fff}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text)}

table{width:100%;border-collapse:collapse;margin:12px 0}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}
th{color:var(--muted);font-weight:500;font-size:13px}
tr:hover td{background:var(--panel2)}

.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:500}
.badge-on{background:#0f2d17;color:#7ee787}
.badge-off{background:#3d1418;color:#ff9c9c}
.badge-wait{background:#33280a;color:#e3b341}

.muted{color:var(--muted)}
.mt{margin-top:16px}
.center{text-align:center}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spread{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}

/* Auth */
.auth-body{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.auth-box{width:100%;max-width:380px}
.auth-box .card{padding:28px}