* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; display: flex; align-items: center; justify-content: center;
  font: 15px/1.5 -apple-system, Segoe UI, Roboto, sans-serif;
  background: #f4f5f7; color: #1f2328;
}
.card { width: 340px; padding: 32px; background: #fff; border: 1px solid #e3e6ea; border-radius: 10px; }
h1 { margin: 0 0 4px; font-size: 20px; }
.sub { margin: 0 0 24px; color: #6b7280; font-size: 13px; }
label { display: block; margin-bottom: 14px; font-size: 13px; color: #374151; }
input { width: 100%; margin-top: 5px; padding: 9px 10px; border: 1px solid #d1d5db; border-radius: 6px; }
button { width: 100%; padding: 10px; border: 0; border-radius: 6px; background: #2563eb; color: #fff; cursor: pointer; }
.foot { margin: 22px 0 0; text-align: center; color: #9ca3af; font-size: 12px; }