:root {
  --ff-primary: #0f766e;
  --ff-primary-dark: #0b5c56;
  --ff-bg: #f7faf9;
  --ff-card: #ffffff;
  --ff-border: #e2e8e6;
  --ff-text: #1f2937;
  --ff-muted: #6b7280;
  --ff-danger: #b91c1c;
  --ff-radius: 12px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ff-bg);
  color: var(--ff-text);
}

.ff-app {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.ff-header h1 {
  font-size: 1.6rem;
  margin: 0 0 6px;
}
.ff-header p {
  margin: 0 0 24px;
  color: var(--ff-muted);
}

.ff-form {
  background: var(--ff-card);
  border: 1px solid var(--ff-border);
  border-radius: var(--ff-radius);
  padding: 20px;
  display: grid;
  gap: 16px;
}

.ff-field { display: grid; gap: 6px; }
.ff-field label { font-size: 0.9rem; font-weight: 600; }
.ff-field input {
  padding: 10px 12px;
  border: 1px solid var(--ff-border);
  border-radius: 8px;
  font-size: 1rem;
}
.ff-field input:focus { outline: 2px solid var(--ff-primary); }

#ff-submit {
  background: var(--ff-primary);
  color: white;
  border: none;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
#ff-submit:hover { background: var(--ff-primary-dark); }
#ff-submit:disabled { opacity: 0.6; cursor: not-allowed; }

.ff-note {
  font-size: 0.85rem;
  color: var(--ff-muted);
  margin: 12px 2px;
}

.ff-status {
  margin: 16px 0;
  font-size: 0.95rem;
}
.ff-status.error { color: var(--ff-danger); }

.ff-results {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.ff-card {
  background: var(--ff-card);
  border: 1px solid var(--ff-border);
  border-radius: var(--ff-radius);
  padding: 16px 18px;
}
.ff-card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.ff-card dl {
  margin: 0;
  display: grid;
  grid-template-columns: 90px 1fr;
  row-gap: 4px;
  font-size: 0.92rem;
}
.ff-card dt { color: var(--ff-muted); }
.ff-card dd { margin: 0; }

.ff-missing {
  color: var(--ff-danger);
}

/* Celda opcional dentro de la tarjeta: nada de modal, no bloquea la página,
   no es obligatorio rellenarla. */
.ff-lead-cell {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--ff-border);
}
.ff-lead-text {
  margin: 0 0 8px;
  font-size: 0.85rem;
  color: var(--ff-muted);
}
.ff-lead-form {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.ff-lead-email {
  flex: 1 1 200px;
  padding: 8px 10px;
  border: 1px solid var(--ff-border);
  border-radius: 6px;
  font-size: 0.9rem;
}
.ff-lead-submit {
  background: none;
  border: 1px solid var(--ff-primary);
  color: var(--ff-primary);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.ff-lead-submit:hover { background: var(--ff-primary); color: white; }
.ff-lead-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.ff-lead-status {
  margin: 6px 0 0;
  font-size: 0.82rem;
  color: var(--ff-muted);
}