/* ════════════════════════════════════════════════════════════════════════════
   Página de aplicación al programa 1:1. Reusa las variables/botones/capas de
   landing.css; acá van solo los estilos del formulario. Calmo y enfocado.
   ════════════════════════════════════════════════════════════════════════════ */
.pg-body {
  min-height: 100vh;
  min-height: 100svh;
}

/* Barra superior. */
.pg-top {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--pad-x);
}
.pg-back {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--paper-dim);
  transition: color 0.2s ease;
}
.pg-back:hover {
  color: var(--red-hi);
}

.pg-main {
  position: relative;
  z-index: 3;
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(24px, 5vh, 60px) var(--pad-x) 100px;
}

/* ── Intro / posicionamiento ─────────────────────────────────────────────── */
.pg-intro {
  margin-bottom: clamp(36px, 6vh, 64px);
}
.pg-title {
  font-family: var(--display);
  font-optical-sizing: auto;
  font-weight: 400;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 26px;
}
.pg-title em {
  color: var(--red);
  font-weight: 300;
}
.pg-note {
  border-left: 2px solid var(--red);
  padding: 4px 0 4px 22px;
  display: grid;
  gap: 14px;
  max-width: 60ch;
}
.pg-note p {
  color: var(--paper-dim);
  font-size: 1.05rem;
  line-height: 1.6;
  margin: 0;
}
.pg-note b {
  color: var(--paper);
  font-weight: 600;
}
.pg-note i {
  font-style: italic;
}

/* ── Formulario ──────────────────────────────────────────────────────────── */
.pg-form {
  display: grid;
  gap: clamp(28px, 4vh, 42px);
}
.pg-group {
  border: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.pg-legend {
  font-family: var(--display);
  font-optical-sizing: auto;
  font-weight: 500;
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
  padding: 0;
  margin-bottom: 2px;
  text-wrap: balance;
}

.pg-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.pg-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pg-field--full {
  grid-column: 1 / -1;
}
.pg-field label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}
.pg-input {
  width: 100%;
  background: var(--ink-2);
  border: 1px solid var(--hair-2);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  padding: 14px 16px;
  border-radius: 12px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.pg-input::placeholder {
  color: var(--faint);
}
.pg-input:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(216, 52, 42, 0.15);
}
.pg-textarea {
  resize: vertical;
  line-height: 1.55;
  min-height: 70px;
}

/* ── Opciones tipo radio (a/b/c/d) ───────────────────────────────────────── */
.pg-options {
  display: grid;
  gap: 10px;
}
.pg-opt {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  border: 1px solid var(--hair-2);
  border-radius: 13px;
  cursor: pointer;
  background: rgba(16, 14, 12, 0.5);
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.12s ease;
}
.pg-opt:hover {
  border-color: var(--paper-dim);
}
.pg-opt:active {
  transform: translateY(1px);
}
.pg-opt input {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border: 1.5px solid var(--muted);
  border-radius: 50%;
  flex: none;
  position: relative;
  cursor: pointer;
  transition: border-color 0.2s ease;
}
.pg-opt input:checked {
  border-color: var(--red);
}
.pg-opt input:checked::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--red-hi);
}
.pg-opt span {
  font-size: 1rem;
  color: var(--paper-dim);
  transition: color 0.2s ease;
}
.pg-opt:has(input:checked) {
  border-color: var(--red);
  background: rgba(216, 52, 42, 0.09);
}
.pg-opt:has(input:checked) span {
  color: var(--paper);
}
/* Marca el grupo como "sin responder" tras un intento fallido. */
.pg-options.pg-invalid {
  outline: 1px solid rgba(255, 78, 64, 0.5);
  outline-offset: 6px;
  border-radius: 14px;
}

.pg-submit {
  margin-top: 6px;
  font-size: 14px;
  padding: 17px 26px;
}
.pg-err {
  font-family: var(--mono);
  font-size: 13px;
  color: #ff8a7a;
  min-height: 1em;
  margin: 4px 0 0;
  text-align: center;
}
.pg-fine {
  text-align: center;
  color: var(--faint);
  font-size: 13px;
  margin: 2px 0 0;
}

/* Marca de campo requerido no completado. */
.pg-input.pg-invalid {
  border-color: rgba(255, 78, 64, 0.7);
}

/* ── Estado de éxito ─────────────────────────────────────────────────────── */
.pg-done {
  text-align: center;
  padding: clamp(30px, 8vh, 70px) 0;
  display: grid;
  place-items: center;
  gap: 18px;
}
.pg-done-mark {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 26px;
  color: #fff;
  background: var(--red);
  box-shadow: 0 12px 44px -14px rgba(216, 52, 42, 0.8);
}
.pg-done-title {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.02em;
  margin: 0;
}
.pg-done-sub {
  color: var(--paper-dim);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 46ch;
  margin: 0 0 10px;
}

@media (max-width: 620px) {
  .pg-grid {
    grid-template-columns: 1fr;
  }
}