:root{
  --bg:#0b1220;
  --surface:#0f1a33;
  --card:#0e1a30;
  --text:#e7eefc;
  --muted:#b7c3e3;
  --line:rgba(255,255,255,.10);
  --primary:#0d6efd;
  --primary-2:#2b8cff;
  --shadow: 0 12px 30px rgba(0,0,0,.25);
  --radius: 16px;
  --radius2: 22px;
  --max: 1100px;
}

*{ 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(900px 500px at 15% 15%, rgba(13,110,253,.25), transparent 55%),
              radial-gradient(700px 420px at 85% 25%, rgba(43,140,255,.18), transparent 55%),
              var(--bg);
  color:var(--text);
}

a{ color:inherit; text-decoration:none; }
.container{ width:min(var(--max), 92%); margin:0 auto; }

.nav{
  position:sticky; top:0;
  backdrop-filter: blur(10px);
  background: rgba(11,18,32,.55);
  border-bottom:1px solid var(--line);
  z-index:10;
}
.nav__inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 0;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-weight:800; letter-spacing:.2px;
}
.brand__dot{
  width:12px; height:12px; border-radius:999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 0 0 4px rgba(13,110,253,.15);
}
.nav__right{ display:flex; align-items:center; gap:10px; }

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px;
  padding:10px 14px;
  border-radius: 12px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  color:var(--text);
  cursor:pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.18); }
.btn--primary{
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
}
.btn--primary:hover{ filter: brightness(1.05); }

.main{ padding: 30px 0 50px; }

.card{
  background: rgba(14,26,48,.85);
  border:1px solid var(--line);
  border-radius: var(--radius2);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.card__header{
  padding: 16px 18px;
  border-bottom:1px solid var(--line);
  display:flex; justify-content:space-between; align-items:center;
}
.card__body{ padding: 18px; }
.card__title{ font-weight:800; }
.card__muted{ color:var(--muted); font-size:.95rem; }

.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 900px){
  .grid{ grid-template-columns: 1.1fr .9fr; }
  .grid--3{ grid-template-columns: 1fr 1fr 1fr; }
}

.kv{
  display:grid;
  grid-template-columns: 160px 1fr;
  gap:10px 14px;
  align-items:center;
}
.kv div{ padding: 8px 0; border-bottom:1px dashed rgba(255,255,255,.10); }
.kv div:nth-last-child(-n+2){ border-bottom:none; }

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 7px 10px;
  border-radius: 999px;
  font-weight:700;
  font-size:.85rem;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
}
.badge--ok{ border-color: rgba(0,255,160,.25); background: rgba(0,255,160,.08); }
.badge--warn{ border-color: rgba(255,200,0,.25); background: rgba(255,200,0,.10); }
.badge--danger{ border-color: rgba(255,80,80,.25); background: rgba(255,80,80,.10); }

.form{
  display:grid;
  gap: 12px;
}
.input{
  width:100%;
  padding: 12px 12px;
  border-radius: 12px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.22);
  color: var(--text);
  outline:none;
}
.input:focus{ border-color: rgba(13,110,253,.55); box-shadow: 0 0 0 4px rgba(13,110,253,.15); }

.alert{
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,80,80,.25);
  background: rgba(255,80,80,.10);
  color: var(--text);
}

.small{ font-size:.92rem; color: var(--muted); }
.footer-note{ margin-top: 12px; color: var(--muted); font-size:.9rem; }