:root {
  --ink: #2b2118; --paper: #efe6d0; --rust: #a23b2a; --night: #1d1812; --cream: #e8d9b0;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body.login {
  display: grid; place-items: center; padding: 24px;
  background:
    radial-gradient(1200px 600px at 20% 10%, rgba(196, 85, 59, .12), transparent 60%),
    radial-gradient(900px 500px at 90% 90%, rgba(232, 217, 176, .08), transparent 60%),
    var(--night);
  color: var(--cream);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.card {
  width: min(420px, 100%); text-align: center; padding: 36px 32px 28px;
  background: #251f18; border: 1px solid #4a3f31; border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .45);
}
.crest { width: 64px; height: 64px; color: var(--cream); margin-bottom: 6px; }
h1 { margin: 0; font: 600 30px/1.2 "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif; letter-spacing: .02em; }
.sub { margin: 4px 0 22px; color: #b5a789; }
.btn {
  display: block; width: 100%; margin: 10px 0 0; padding: 12px 16px; border: 0; border-radius: 9px;
  background: var(--rust); color: #fff; font: 600 16px system-ui, sans-serif; text-decoration: none; cursor: pointer;
}
.btn:hover { filter: brightness(1.1); }
.btn:focus-visible { outline: 3px solid var(--cream); outline-offset: 2px; }
.btn.ghost { background: transparent; border: 1px solid #5b4d3b; color: var(--cream); }
.error { background: rgba(196, 85, 59, .16); border: 1px solid rgba(196, 85, 59, .5); color: #ffd9cf; padding: 10px 12px; border-radius: 8px; margin: 0 0 14px; font-size: 14.5px; }
.fine { margin: 20px 0 0; font-size: 13px; color: #8d806a; }
.stack { display: grid; gap: 12px; text-align: left; margin-top: 12px; }
label { display: grid; gap: 4px; font-size: 14px; color: #b5a789; }
input, select { padding: 10px 12px; border-radius: 8px; border: 1px solid #5b4d3b; background: #1a1510; color: var(--cream); font: inherit; }