:root { --red: #c44a3a; --ink: #222; --line: #e4ddd4; }
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; display: flex; align-items: center; justify-content: center;
  font-family: -apple-system, "Helvetica Neue", Arial, sans-serif; color: var(--ink);
  background: #faf7f2;
}
.card { width: min(420px, 92vw); background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 2rem; }
.brand { font-size: 1.4rem; font-weight: 800; }
.brand span { color: var(--red); }
.tagline { color: #777; margin: 0.2rem 0 1.4rem; font-size: 0.9rem; }
h1 { font-size: 1.15rem; margin: 0 0 0.8rem; }
label { display: block; margin: 0.8rem 0; font-size: 0.9rem; }
input { display: block; width: 100%; margin-top: 0.3rem; padding: 0.55rem 0.7rem; border: 1px solid var(--line); border-radius: 8px; font-size: 1rem; }
button { width: 100%; margin-top: 1rem; padding: 0.65rem; background: var(--red); color: #fff; border: 0; border-radius: 8px; font-size: 1rem; cursor: pointer; }
.error { color: #a33; background: #fdf0ee; border: 1px solid #f0cfc9; padding: 0.5rem 0.8rem; border-radius: 8px; font-size: 0.9rem; }
.ok { color: #2c6e31; background: #eef7ee; border: 1px solid #cfe6cf; padding: 0.5rem 0.8rem; border-radius: 8px; font-size: 0.9rem; }
.links { font-size: 0.85rem; margin-top: 1.2rem; }
.links a { color: var(--red); }