* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #f4f5f7;
  color: #1f2430;
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px 16px;
}

.tarjeta {
  background: #fff;
  width: 100%;
  max-width: 480px;
  border-radius: 16px;
  padding: 28px 24px;
  box-shadow: 0 4px 24px rgba(0,0,0,.08);
}

h1 { font-size: 1.5rem; margin-bottom: 6px; }
.subtitulo { font-size: .9rem; color: #667; margin-bottom: 22px; }

label {
  display: block;
  font-size: .88rem;
  font-weight: 600;
  margin-bottom: 16px;
}

input, select, textarea {
  width: 100%;
  margin-top: 6px;
  padding: 11px 12px;
  border: 1px solid #d3d7de;
  border-radius: 9px;
  font-size: 1rem;
  font-family: inherit;
  font-weight: 400;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: #2f6bff;
  box-shadow: 0 0 0 3px rgba(47,107,255,.15);
}

textarea { resize: vertical; }

button {
  width: 100%;
  padding: 13px;
  background: #2f6bff;
  color: #fff;
  border: none;
  border-radius: 9px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 4px;
}

button:disabled { opacity: .6; cursor: not-allowed; }

.mensaje {
  margin-top: 18px;
  padding: 13px;
  border-radius: 9px;
  font-size: .92rem;
  text-align: center;
}
.mensaje.ok    { background: #e6f7ed; color: #1a7a43; }
.mensaje.error { background: #fdeaea; color: #c0392b; }
.oculto { display: none; }

.checkbox-politica {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-weight: 400;
  font-size: .82rem;
  color: #555;
  line-height: 1.4;
  margin-bottom: 20px;
}
.checkbox-politica input {
  width: auto;
  margin-top: 3px;
  flex-shrink: 0;
}