* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: #0f1115;
  color: #e8e8e8;
}
.card {
  width: 100%;
  max-width: 360px;
  padding: 32px;
  background: #1a1d24;
  border: 1px solid #2a2f3a;
  border-radius: 12px;
}
h1 { font-size: 1.25rem; margin: 0 0 20px; }
label { display: block; margin-bottom: 14px; font-size: .85rem; color: #a8b0bd; }
input {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  background: #0f1115;
  border: 1px solid #2a2f3a;
  border-radius: 8px;
  color: #e8e8e8;
  font-size: 1rem;
}
button {
  width: 100%;
  margin-top: 8px;
  padding: 11px;
  background: #3b82f6;
  border: 0;
  border-radius: 8px;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
}
button:hover { background: #2f6fe0; }
.msg { padding: 10px 12px; border-radius: 8px; font-size: .85rem; }
.err { background: #3a1618; color: #ffb4b4; }
.ok  { background: #16341f; color: #a7f3c0; }
a { color: #7aa7ff; }