:root {
  --bg: #0f172a;
  --card: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --error: #f87171;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.card {
  background: var(--card);
  padding: 2.5rem;
  border-radius: 14px;
  width: min(420px, 92vw);
  box-shadow: 0 10px 40px rgba(0,0,0,.4);
  text-align: center;
  margin: 1.5rem;
}
h1 { margin: 0 0 .5rem; }
h2 { font-size: 1rem; margin: 1.4rem 0 .5rem; color: var(--accent); }
.muted { color: var(--muted); font-size: .95rem; }
.error { color: var(--error); font-size: .95rem; }
.entities { list-style: none; padding: 0; margin: 0; text-align: left; display: inline-block; }
.entities li {
  padding: .55rem .8rem;
  margin: .35rem 0;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
}
.btn-google {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-top: 1.4rem;
  padding: .7rem 1.2rem;
  background: #fff;
  color: #1f2937;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}
.btn-google:hover { background: #f1f5f9; }
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .8rem 1.2rem;
  background: var(--card);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.brand { font-weight: 700; color: var(--accent); }
.user { display: flex; align-items: center; gap: .6rem; font-size: .9rem; color: var(--muted); }
.user img { width: 28px; height: 28px; border-radius: 50%; }
.btn-logout {
  background: transparent;
  border: 1px solid var(--muted);
  color: var(--text);
  border-radius: 6px;
  padding: .3rem .7rem;
  cursor: pointer;
  font-size: .85rem;
}
.btn-logout:hover { border-color: var(--accent); color: var(--accent); }