* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #040404;
  font-family: Helvetica, Arial, sans-serif;
  color: #eee;
}

.card {
  width: 320px;
  padding: 40px;
  border: 1px solid #2a2a2a;
  border-radius: 12px;
  background: #161616;
  text-align: center;
}

.logo { width: 56px; height: 56px; }

h1 { font-size: 1.6rem; font-weight: 400; margin: 12px 0 28px; }

.btn {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #3a3a3a;
  border-radius: 8px;
  background: #fff;
  color: #111;
  font-size: 1rem;
  cursor: pointer;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn.google .g { font-weight: 700; color: #4285f4; margin-right: 6px; }

form { display: flex; gap: 8px; }

#email {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid #3a3a3a;
  border-radius: 8px;
  background: #0d0d0d;
  color: #eee;
}

form .btn { width: auto; }

.hint { font-size: 0.75rem; color: #888; margin: 10px 0 0; }

.error { color: #e5476d; font-size: 0.85rem; min-height: 1em; margin: 16px 0 0; }