:root {
  --bg: #f7f4ec;
  --card: #ffffff;
  --ink: #211d16;
  --ink-soft: #5b5445;
  --line: #ddd4be;
  --primary: #1f6e4a;
  --primary-ink: #143f2b;
  --accent: #b6431f;
  --accent-soft: #f5e2d8;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  margin: 0;
  line-height: 1.5;
}

.cabecera {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
}
.marca { font-weight: 700; font-size: 1.1rem; color: var(--ink); text-decoration: none; }
.principal { display: flex; gap: 1rem; align-items: center; }
.principal a, .principal .enlace {
  color: var(--ink-soft); text-decoration: none; font: inherit; background: none; border: none; cursor: pointer;
}

main { max-width: 480px; margin: 0 auto; padding: 2.5rem 1.5rem; }

.tarjeta {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.2rem;
  box-shadow: 0 1px 2px rgba(33, 29, 22, 0.06);
}

h1 { font-size: 1.4rem; margin: 0 0 .3rem; }
.muted { color: var(--ink-soft); font-size: .92rem; margin: 0; }

label { display: block; font-size: .85rem; color: var(--ink-soft); margin: 1rem 0 .3rem; }
input {
  width: 100%; padding: .55rem .7rem; border: 1px solid var(--line); border-radius: 8px;
  font-size: 1rem; background: var(--bg);
}

.fila-acciones { margin-top: 1.3rem; }
button[type="submit"] {
  background: var(--primary); color: #fff; border: none; border-radius: 8px;
  padding: .6rem 1.1rem; font-size: .95rem; font-weight: 600; cursor: pointer;
}
button[type="submit"]:hover { opacity: .92; }

.error, .aviso {
  max-width: 480px; margin: 0 auto 1rem; padding: .7rem 1rem; border-radius: 8px; font-size: .9rem;
}
.error { background: var(--accent-soft); color: var(--accent); }
.aviso { background: #e3ede6; color: var(--primary-ink); }

.pie { text-align: center; color: var(--ink-soft); font-size: .8rem; padding: 2rem 0; }
a { color: var(--primary-ink); }