:root { color-scheme: light; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: #f6f7fb;
  margin: 0;
  padding: 0;
}
.container {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.card {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border: 1px solid #e6e8f0;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,.08);
  padding: 22px;
}
h1 {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 700;
}
label { display:block; font-size: 13px; margin: 12px 0 6px; color:#2b2f3a; }
input[type="email"], input[type="password"], input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d7dbe7;
  border-radius: 10px;
  outline: none;
}
input:focus { border-color: #7b8cff; box-shadow: 0 0 0 4px rgba(123,140,255,.15); }
.row { display:flex; justify-content: space-between; align-items:center; gap: 12px; margin-top: 12px; }
.small { font-size: 13px; color:#4a5162; }
a { color:#3b5bfd; text-decoration:none; }
a:hover { text-decoration:underline; }
.btn {
  background: #111827;
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
}
.btn:hover { filter: brightness(1.05); }