:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e7ecf3;
  --muted: #8b9bb4;
  --accent: #3d8bfd;
  --ok: #3dd68c;
  --warn: #f5a524;
  --err: #f31260;
  --border: #2a3548;
  font-family: "IBM Plex Sans", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.top {
  padding: 1.5rem 2rem 0.5rem;
  border-bottom: 1px solid var(--border);
}
.top h1 { margin: 0; font-size: 1.4rem; letter-spacing: 0.02em; }
.sub { color: var(--muted); margin: 0.25rem 0 0.75rem; font-size: 0.95rem; }
.user-bar { font-size: 0.9rem; color: var(--muted); }
.user-bar a { color: var(--accent); }
main { padding: 1.5rem 2rem 3rem; max-width: 720px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}
label { display: block; font-size: 0.85rem; color: var(--muted); margin: 0.75rem 0 0.3rem; }
input, select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #0d1218;
  color: var(--text);
  font-size: 0.95rem;
}
.row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1rem; }
button, .btn {
  appearance: none;
  border: none;
  border-radius: 6px;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  display: inline-block;
}
button.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge.ok { background: rgba(61,214,140,0.15); color: var(--ok); }
.badge.warn { background: rgba(245,165,36,0.15); color: var(--warn); }
.msg { margin-top: 0.75rem; font-size: 0.9rem; }
.msg.err { color: var(--err); }
.msg.ok { color: var(--ok); }
.install-list { list-style: none; padding: 0; margin: 0; }
.install-list li {
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.install-list a { color: var(--accent); text-decoration: none; }
.hint { color: var(--muted); font-size: 0.85rem; margin-top: 0.35rem; }