/* ==========================================================================
   IBC — Acceso de miembros (login.html, suscripcion.html)
   Tarjeta centrada sobre fondo navy: mismo lenguaje visual que el resto del
   sitio, pero resuelto como formulario en vez de sección editorial.
   ========================================================================== */

.auth-section {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding-block: calc(var(--header-height) + var(--space-lg)) var(--space-lg);
  background-color: var(--color-navy-950);
}

.auth-card {
  width: 100%;
  max-width: 30rem;
  padding: var(--space-lg) var(--space-md);
  background-color: var(--color-bone-50);
  box-shadow: var(--shadow-raised);
}

/* La tarjeta de suscripción lleva más campos y el selector de plan: necesita
   más ancho que la de inicio de sesión para no apilar todo en una columna
   angosta. */
.auth-card--wide { max-width: 42rem; }

.auth-card__eyebrow {
  color: var(--color-brass-600);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
}

.auth-card__title {
  margin-top: var(--space-2xs);
  font-size: var(--text-h3);
}

.auth-card__lead {
  margin-top: var(--space-sm);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   Campos de formulario
   -------------------------------------------------------------------------- */
.form {
  margin-top: var(--space-lg);
}

.form-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-md);
}

.form-group + .form-group,
.form-row + .form-group,
.form-group + .form-row { margin-top: var(--space-md); }

.form-label {
  display: block;
  margin-bottom: var(--space-2xs);
  color: var(--color-ink);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem var(--space-sm);
  background-color: var(--color-bone-50);
  border: 1px solid var(--border-hairline);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.form-input::placeholder { color: var(--color-ink-muted); }

.form-input:focus-visible {
  outline: none;
  border-color: var(--color-brass-500);
}

.form-input:invalid[data-touched="true"] { border-color: #b3432f; }

.form-hint {
  margin-top: var(--space-2xs);
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   Selector de plan (suscripcion.html)

   Tarjetas de radio nativas: cada `input[type=radio]` queda visualmente
   oculto pero accesible; el estado marcado se expresa en `.plan-choice`
   mediante el hermano adyacente, sin JavaScript.
   -------------------------------------------------------------------------- */
.plan-choices {
  display: grid;
  gap: var(--space-sm);
}

.plan-choice {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-hairline);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.plan-choice__radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.plan-choice__name {
  display: block;
  font-family: var(--font-ui);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
}

.plan-choice__price {
  display: block;
  margin-top: 0.15rem;
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

.plan-choice__mark {
  flex-shrink: 0;
  width: 1.15rem;
  height: 1.15rem;
  border: 1px solid var(--color-ink-muted);
  border-radius: 50%;
}

.plan-choice:has(.plan-choice__radio:checked) {
  border-color: var(--color-brass-500);
  background-color: rgba(184, 150, 92, 0.08);
}

.plan-choice:has(.plan-choice__radio:checked) .plan-choice__mark {
  border-color: var(--color-brass-500);
  border-width: 5px;
}

.plan-choice:has(.plan-choice__radio:focus-visible) {
  outline: 2px solid var(--color-brass-400);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Casilla de aceptación de términos
   -------------------------------------------------------------------------- */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.form-check input { margin-top: 0.2rem; }

.form-check label {
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}

.form-check a { color: var(--color-brass-600); text-decoration: underline; }

/* --------------------------------------------------------------------------
   Acciones, notas y estado de éxito
   -------------------------------------------------------------------------- */
.form-actions { margin-top: var(--space-lg); }
.form-actions .btn { width: 100%; }

.form-note {
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
}

.form-note--error { color: #b3432f; }
.form-note--info { color: var(--color-ink-muted); }

.auth-switch {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-hairline);
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  text-align: center;
}

.auth-switch a { color: var(--color-brass-600); font-weight: 600; }

.auth-success {
  text-align: center;
}

.auth-success i {
  font-size: 2.5rem;
  color: var(--color-brass-500);
}

.auth-success__title {
  margin-top: var(--space-sm);
  font-size: var(--text-h3);
}

.auth-success__body {
  margin-top: var(--space-sm);
  color: var(--color-ink-soft);
}

@media (max-width: 640px) {
  .auth-card { padding: var(--space-lg) var(--space-sm); }
  .form-row { grid-template-columns: minmax(0, 1fr); }
}