:root {
  --fondo: #141210;
  --oro: #c6a36a;
  --texto: #f6f1ea;
  --suave: #b7aa9c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100dvh;
  font-family: "DM Sans", system-ui, sans-serif;
  color: var(--texto);
  background:
    radial-gradient(ellipse 80% 50% at 80% 0%, rgba(198, 163, 106, 0.18), transparent 50%),
    var(--fondo);
}
.back {
  position: fixed;
  top: 1rem;
  left: 1rem;
  color: var(--suave);
  text-decoration: none;
}
main {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 4.5rem 1rem 2rem;
}
.card {
  width: min(880px, 100%);
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #1c1916;
  border: 1px solid rgba(198, 163, 106, 0.28);
  border-radius: 22px;
  overflow: hidden;
}
.hero {
  padding: 2.5rem 2rem;
  background:
    linear-gradient(160deg, rgba(198, 163, 106, 0.2), transparent 55%),
    #221e1a;
}
.hero p {
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--oro);
}
.hero h1 {
  margin: 0.4rem 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 2.6rem;
  font-weight: 600;
  line-height: 1;
}
.hero span { color: var(--suave); }
.panel { padding: 2rem 1.6rem 2.2rem; }
.panel h2, .panel h3 { margin: 0 0 0.4rem; font-family: "Cormorant Garamond", Georgia, serif; }
.lead { margin: 0 0 1rem; color: var(--suave); font-size: 0.92rem; }
label { display: block; margin: 0.75rem 0 0.3rem; font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; }
input {
  width: 100%;
  border: 0;
  border-bottom: 1px solid rgba(246, 241, 234, 0.25);
  background: transparent;
  color: var(--texto);
  padding: 0.45rem 0;
}
button {
  width: 100%;
  margin-top: 1.2rem;
  border: 0;
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: var(--oro);
  color: #1c1408;
  font-weight: 700;
  cursor: pointer;
}
button.secondary { background: transparent; color: var(--oro); border: 1px solid var(--oro); }
.alert { margin: 0.6rem 0; padding: 0.55rem 0.7rem; border-radius: 8px; font-size: 0.88rem; }
.alert.err { background: rgba(160, 50, 50, 0.25); }
.alert.ok { background: rgba(50, 120, 70, 0.28); }
hr { border: 0; border-top: 1px solid rgba(255,255,255,0.08); margin: 1.4rem 0; }
@media (max-width: 760px) {
  .card { grid-template-columns: 1fr; }
}