:root{
  --bg:#0b0f19;
  --card:#121a2b;
  --text:#e8eefc;
  --muted:#9fb0d0;
  --accent:#7bdff6;
  --danger:#ff5c7a;
  --success:#42f5b6;
  --border: rgba(255,255,255,0.10);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: radial-gradient(1200px 800px at 10% 10%, rgba(123,223,246,0.12), transparent 60%),
              radial-gradient(900px 700px at 90% 0%, rgba(255,92,122,0.10), transparent 55%),
              var(--bg);
  color: var(--text);
}
.container{max-width:980px;margin:0 auto;padding:24px}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;border-bottom:1px solid var(--border);
  background: rgba(18,26,43,0.70); backdrop-filter: blur(10px);
  position: sticky; top:0; z-index:50;
}
.brand{font-weight:800;letter-spacing:0.5px}
.brand span{color:var(--accent)}
.nav a{color:var(--text);text-decoration:none;margin-right:14px;opacity:.9}
.nav a:hover{opacity:1}
.card{
  background: rgba(18,26,43,0.8);
  border:1px solid var(--border);
  border-radius:18px;
  padding:18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}
.grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width: 900px){
  .grid-2{grid-template-columns: 1fr 1fr}
}
.h1{font-size:28px;margin:0 0 6px 0}
.p{color:var(--muted);margin:0 0 16px 0;line-height:1.5}
.label{display:block;font-size:13px;color:var(--muted);margin:10px 0 6px}
.input, .textarea{
  width:100%;padding:12px 12px;border-radius:12px;
  border:1px solid var(--border);
  background: rgba(11,15,25,0.65);
  color: var(--text);
  outline:none;
}
.textarea{min-height:110px;resize:vertical}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;border-radius:12px;
  border:1px solid var(--border);
  background: rgba(123,223,246,0.10);
  color: var(--text);
  text-decoration:none;
  cursor:pointer;
}
.btn:hover{background: rgba(123,223,246,0.16)}
.btn-danger{background: rgba(255,92,122,0.12)}
.btn-danger:hover{background: rgba(255,92,122,0.18)}
.badge{
  font-size:12px;padding:5px 10px;border-radius:999px;
  border:1px solid var(--border);
  color: var(--muted);
}
.flash{
  padding:12px 14px;border-radius:14px;border:1px solid var(--border);
  margin: 0 0 16px 0;
}
.flash.error{border-color: rgba(255,92,122,0.35); background: rgba(255,92,122,0.10)}
.flash.success{border-color: rgba(66,245,182,0.35); background: rgba(66,245,182,0.10)}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px 10px;border-bottom:1px solid var(--border);text-align:left}
.small{font-size:12px;color:var(--muted)}
.kv{display:grid;grid-template-columns: 220px 1fr;gap:10px;align-items:start}
.kv div{padding:10px 0;border-bottom:1px dashed rgba(255,255,255,0.10)}
.kv .k{color:var(--muted)}
.footer{padding:18px 24px;color:rgba(159,176,208,0.8);text-align:center}
.code{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  background: rgba(11,15,25,0.6); border:1px solid var(--border);
  border-radius:12px;padding:12px;overflow:auto;}