:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e7ecf3;
  --muted: #8b9bb4;
  --accent: #3d9cf0;
  --ok: #3ecf8e;
  --err: #f07178;
  --border: #2a3548;
  --radius: 12px;
  font-family: "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 10% -10%, #1a2a40, var(--bg));
  color: var(--text);
  min-height: 100vh;
}
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; gap: .75rem; align-items: center; }
.logo { font-size: 1.6rem; }
.tag { font-size: .75rem; color: var(--muted); }
.nav button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: .4rem .8rem;
  border-radius: 8px;
  margin-left: .35rem;
  cursor: pointer;
}
.nav button.ghost { border-color: transparent; color: var(--muted); }
main { max-width: 720px; margin: 1.5rem auto; padding: 0 1rem 3rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}
h1 { margin: 0 0 .5rem; font-size: 1.4rem; }
h2 { margin: 1.25rem 0 .5rem; font-size: 1.05rem; color: var(--muted); font-weight: 600; }
.muted { color: var(--muted); font-size: .9rem; }
.error { color: var(--err); min-height: 1.2em; }
label { display: block; margin: .75rem 0; font-size: .85rem; color: var(--muted); }
input {
  display: block;
  width: 100%;
  margin-top: .35rem;
  padding: .6rem .7rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0d121a;
  color: var(--text);
}
button.primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: .65rem 1.1rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  margin-top: .5rem;
}
.tabs { display: flex; gap: .5rem; margin: 1rem 0; }
.tab {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: .35rem .9rem;
  border-radius: 999px;
  cursor: pointer;
}
.tab.active { border-color: var(--accent); color: var(--text); }
.list { display: flex; flex-direction: column; gap: .65rem; }
.item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .85rem 1rem;
  background: #121a26;
}
.item strong { display: block; margin-bottom: .25rem; }
.item code, .mono {
  font-family: ui-monospace, monospace;
  font-size: .75rem;
  word-break: break-all;
  color: #b7c5d9;
}
.row { display: flex; flex-wrap: wrap; gap: .5rem; margin: .75rem 0; }
.badge {
  display: inline-block;
  font-size: .7rem;
  padding: .15rem .45rem;
  border-radius: 6px;
  background: #243044;
  color: var(--ok);
}
.hidden { display: none !important; }
.foot { text-align: center; padding: 1rem; font-size: .8rem; }
a { color: var(--accent); }