:root {
  color-scheme: dark;
  --bg: #0f172a;
  --panel: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
}

.card {
  background: var(--panel);
  border-radius: 16px;
  padding: 2.5rem;
  width: min(90vw, 380px);
  text-align: center;
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.4);
}

h1 { margin: 0 0 0.5rem; font-size: 1.4rem; }
p.sub { color: var(--muted); margin: 0 0 1.5rem; font-size: 0.9rem; }

.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin-bottom: 1rem;
  object-fit: cover;
}

button, a.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  justify-content: center;
  width: 100%;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s;
}

a.btn.google {
  background: #fff;
  color: #1f1f1f;
}

button.logout {
  background: transparent;
  color: var(--muted);
  border: 1px solid #334155;
  margin-top: 0.75rem;
}

button:hover, a.btn:hover { opacity: 0.9; }

.hidden { display: none !important; }