/* Neutral black/white UI */
:root{
  --bg:#0b0b0d;
  --card:#121218;
  --text:#f3f4f6;
  --muted:#a1a1aa;
  --line:#24242d;
  --accent:#ffffff;
  --danger:#ff4d4f;
  --ok:#22c55e;
  --warn:#f59e0b;
  --shadow: 0 10px 30px rgba(0,0,0,.45);
  --radius:16px;
  --radius2:22px;
  --pad:14px;
  --max:1100px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 700px at 20% 0%, #1a1a22 0%, var(--bg) 55%);
  color:var(--text);
}

a{color:var(--text); text-decoration:none;}
a:hover{opacity:.92;}

.topbar{
  position:sticky; top:0;
  backdrop-filter: blur(10px);
  background: rgba(10,10,14,.65);
  border-bottom:1px solid var(--line);
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 18px;
  z-index:10;
}

.brand{display:flex; align-items:center; gap:12px;}
.logo{
  width:38px; height:38px; border-radius:12px;
  display:grid; place-items:center;
  background:#0f0f14; border:1px solid var(--line);
  box-shadow: var(--shadow);
}
.title{font-weight:700; letter-spacing:.2px;}
.subtitle{font-size:12px; color:var(--muted); margin-top:2px;}

.nav{display:flex; align-items:center; gap:10px; flex-wrap:wrap;}
.navlink{
  padding:8px 10px;
  border-radius:12px;
  border:1px solid transparent;
  color:var(--muted);
}
.navlink:hover{border-color:var(--line); color:var(--text); background:rgba(255,255,255,.03);}

.container{
  max-width:var(--max);
  margin: 20px auto 60px;
  padding: 0 16px;
}

.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap:14px;
}
.col-12{grid-column: span 12;}
.col-8{grid-column: span 8;}
.col-6{grid-column: span 6;}
.col-4{grid-column: span 4;}
.col-3{grid-column: span 3;}

@media (max-width: 900px){
  .col-8,.col-6,.col-4,.col-3{grid-column: span 12;}
}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius: var(--radius2);
  padding: 16px;
  box-shadow: var(--shadow);
}
.card h2{margin:0 0 10px; font-size:18px;}
.card h3{margin:0 0 10px; font-size:16px; color:var(--muted); font-weight:600;}
.muted{color:var(--muted); font-size:13px;}
.kv{display:flex; justify-content:space-between; gap:10px; padding:8px 0; border-bottom:1px dashed rgba(255,255,255,.08);}
.kv:last-child{border-bottom:0;}
.k{color:var(--muted);}
.v{font-family:var(--mono);}

.btn{
  border:1px solid var(--line);
  background:#0f0f14;
  color:var(--text);
  padding:10px 12px;
  border-radius:14px;
  cursor:pointer;
  box-shadow: none;
}
.btn:hover{background: rgba(255,255,255,.04);}
.btn-primary{
  background: var(--accent);
  color:#050508;
  border-color: rgba(255,255,255,.6);
  font-weight:700;
}
.btn-primary:hover{filter:brightness(.95);}
.btn-danger{
  background: rgba(255,77,79,.12);
  border-color: rgba(255,77,79,.35);
  color: #ffd1d1;
}
.btn-ghost{
  background: transparent;
}
.row{display:flex; gap:10px; flex-wrap:wrap; align-items:center;}
.spacer{flex:1;}

.input, select{
  width:100%;
  background: rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:14px;
  color:var(--text);
  padding:10px 12px;
  outline:none;
}
.input:focus{border-color: rgba(255,255,255,.35);}
label{font-size:12px; color:var(--muted); display:block; margin: 10px 0 6px;}

.table{
  width:100%;
  border-collapse: collapse;
  overflow:hidden;
  border-radius: 14px;
}
.table th, .table td{
  text-align:left;
  padding:10px 10px;
  border-bottom:1px solid rgba(255,255,255,.08);
  font-size: 13px;
}
.table th{color:var(--muted); font-weight:600;}
.table tr:hover td{background: rgba(255,255,255,.02);}

.pill{
  display:inline-flex; align-items:center; gap:6px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  font-size:12px;
  color:var(--muted);
}
.pill.ok{border-color: rgba(34,197,94,.35); color:#bff5d0;}
.pill.warn{border-color: rgba(245,158,11,.35); color:#ffe5b8;}
.pill.bad{border-color: rgba(255,77,79,.35); color:#ffd1d1;}

.toast{
  position: sticky;
  top: 70px;
  margin: 0 auto 12px;
  padding: 10px 12px;
  border-radius: 14px;
  border:1px solid var(--line);
  background: rgba(10,10,14,.85);
  max-width: var(--max);
}

.footer{
  border-top: 1px solid var(--line);
  padding: 14px 18px;
  position: fixed;
  left:0; right:0; bottom:0;
  background: rgba(10,10,14,.75);
  backdrop-filter: blur(8px);
}