/* Landing del libro en papel (IFHA Sitekit 3.14.0). Sólo se carga con [ifha_libro]. */
.ifl {
	--ifl-azul: #22395a;
	--ifl-azul-2: #1a2c46;
	--ifl-verde: #92d050;
	--ifl-verde-2: #7fbf3a;
	--ifl-verde-tinta: #2a3d14;
	--ifl-tinta: #1f2a37;
	--ifl-gris: #5b6675;
	--ifl-linea: #dfe5ec;
	--ifl-fondo: #f5f7fa;
	--ifl-error: #b42318;
	--ifl-radio: 14px;
	font-family: Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	color: var(--ifl-tinta);
	font-size: 17px;
	line-height: 1.55;
	-webkit-font-smoothing: antialiased;
}
.ifl *, .ifl *::before, .ifl *::after { box-sizing: border-box; }
/* 3.14.1: lo oculto queda oculto aunque su clase le dé display (el aviso de stock salía siempre). */
.ifl [hidden] { display: none !important; }
.ifl img { max-width: 100%; height: auto; display: block; }
.ifl p { margin: 0 0 12px; }
.ifl a { color: var(--ifl-azul); }
.ifl-ancho { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

.ifl-h1 { font-size: clamp(30px, 6.4vw, 46px); line-height: 1.12; letter-spacing: -.02em; font-weight: 800; color: var(--ifl-azul); margin: 6px 0 14px; }
.ifl-h2 { font-size: clamp(24px, 4.6vw, 32px); line-height: 1.2; letter-spacing: -.01em; font-weight: 800; color: var(--ifl-azul); margin: 0 0 10px; }
.ifl-sub { color: var(--ifl-gris); max-width: 640px; margin-bottom: 24px; }
.ifl-eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #4a7a1d; margin: 0; }
.ifl-lead { font-size: 18px; color: #3a4553; max-width: 560px; }

/* Botón */
.ifl-btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 8px;
	min-height: 52px; padding: 0 28px; border: 0; border-radius: 999px;
	background: var(--ifl-verde); color: var(--ifl-verde-tinta) !important;
	font: 700 17px/1 Roboto, sans-serif; text-decoration: none !important; cursor: pointer;
	box-shadow: 0 6px 18px rgba(127, 191, 58, .35); transition: background .15s, transform .15s;
}
.ifl-btn:hover { background: var(--ifl-verde-2); transform: translateY(-1px); }
.ifl-btn:focus-visible { outline: 3px solid var(--ifl-azul); outline-offset: 3px; }
.ifl-btn[disabled] { opacity: .6; cursor: progress; transform: none; }
.ifl-btn--ancho { width: 100%; }

/* Hero */
.ifl-hero {
	max-width: 1120px; margin: 0 auto; padding: 24px 16px 40px;
	display: grid; gap: 28px; align-items: center;
}
.ifl-hero__tapa { display: flex; justify-content: center; }
.ifl-hero__tapa img {
	width: min(62vw, 300px); border-radius: 4px 10px 10px 4px;
	box-shadow: 0 2px 4px rgba(0,0,0,.12), 0 24px 48px -12px rgba(34, 57, 90, .45);
	transform: rotate(-2deg);
}
.ifl-precio { margin: 18px 0 22px; padding: 16px 18px; background: var(--ifl-fondo); border-radius: var(--ifl-radio); border-left: 4px solid var(--ifl-verde); }
.ifl-precio p { margin: 0; }
.ifl-precio__usd { font-size: 32px; font-weight: 800; color: var(--ifl-azul); line-height: 1.1; }
.ifl-precio__usd span { font-size: 15px; font-weight: 500; color: var(--ifl-gris); }
.ifl-precio__ars { font-size: 16px; color: #3a4553; margin-top: 4px !important; }
.ifl-precio__ars strong { color: var(--ifl-tinta); }
.ifl-precio__envio { font-size: 14px; color: var(--ifl-gris); margin-top: 6px !important; }
.ifl-claves { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 8px; font-size: 15px; color: #3a4553; }
.ifl-claves li { position: relative; padding-left: 26px; }
.ifl-claves li::before { content: ""; position: absolute; left: 0; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--ifl-verde) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.2l2.6 2.6L12 5.4' fill='none' stroke='%232a3d14' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat; }

/* Banda: qué trae */
.ifl-banda { background: var(--ifl-fondo); padding: 48px 0; }
.ifl-bloques { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.ifl-bloques li { background: #fff; border: 1px solid var(--ifl-linea); border-radius: var(--ifl-radio); padding: 20px; }
.ifl-bloques h3 { font-size: 19px; color: var(--ifl-azul); margin: 6px 0 6px; }
.ifl-bloques p { margin: 0; color: #3a4553; font-size: 16px; }
.ifl-num { font-size: 13px; font-weight: 800; color: #4a7a1d; letter-spacing: .06em; }
.ifl-extra { margin: 20px 0 0 !important; display: flex; gap: 14px; align-items: center; background: var(--ifl-azul); color: #fff; border-radius: var(--ifl-radio); padding: 18px 20px; font-size: 16px; }
.ifl-extra strong { font-size: 40px; line-height: 1; color: var(--ifl-verde); }

/* Pasos */
.ifl-pasos { padding-top: 48px; padding-bottom: 16px; }
.ifl-pasos__lista { counter-reset: p; list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 16px; }
.ifl-pasos__lista li { counter-increment: p; position: relative; padding-left: 52px; color: #3a4553; }
.ifl-pasos__lista li::before { content: counter(p); position: absolute; left: 0; top: -2px; width: 36px; height: 36px; border-radius: 50%; background: var(--ifl-azul); color: #fff; font-weight: 800; display: grid; place-items: center; }
.ifl-pasos__lista strong { color: var(--ifl-tinta); }

/* Compra */
.ifl-compra { padding: 40px 0 48px; scroll-margin-top: 80px; }
.ifl-compra__grilla { display: grid; gap: 24px; }
.ifl-compra__titulo { margin-bottom: 20px; }
.ifl-grupo { border: 0; padding: 0; margin: 0 0 22px; min-width: 0; }
.ifl-grupo legend { font-size: 15px; font-weight: 800; color: var(--ifl-azul); text-transform: uppercase; letter-spacing: .05em; padding: 0; margin-bottom: 12px; }
.ifl-fila { display: grid; gap: 0 14px; }
.ifl-campo { margin-bottom: 14px; min-width: 0; }
.ifl-label { display: block; font-size: 15px; font-weight: 600; margin-bottom: 6px; color: var(--ifl-tinta); }
.ifl input[type="text"], .ifl input[type="email"], .ifl input[type="tel"], .ifl select, .ifl textarea {
	width: 100%; min-height: 50px; padding: 12px 14px; font: 400 17px/1.3 Roboto, sans-serif; color: var(--ifl-tinta);
	background: #fff; border: 1.5px solid #b9c4d0; border-radius: 10px; transition: border-color .15s, box-shadow .15s;
}
.ifl textarea { min-height: 72px; resize: vertical; }
.ifl input:focus, .ifl select:focus, .ifl textarea:focus { outline: none; border-color: var(--ifl-azul); box-shadow: 0 0 0 3px rgba(34, 57, 90, .15); }
.ifl [aria-invalid="true"] { border-color: var(--ifl-error) !important; }
.ifl-ayuda { font-size: 14px; color: var(--ifl-gris); margin: 6px 0 0 !important; }
.ifl-error { font-size: 14px; color: var(--ifl-error); margin: 6px 0 0 !important; font-weight: 500; }
.ifl-error--general { background: #fef3f2; border: 1px solid #fecdca; border-radius: 10px; padding: 12px 14px; margin: 0 0 14px !important; }

.ifl-seg { display: inline-flex; border: 1.5px solid #b9c4d0; border-radius: 999px; padding: 4px; gap: 4px; }
.ifl-seg label { position: relative; cursor: pointer; }
.ifl-seg input { position: absolute; opacity: 0; inset: 0; }
.ifl-seg span { display: grid; place-items: center; min-width: 56px; height: 42px; border-radius: 999px; font-weight: 700; color: var(--ifl-gris); }
.ifl-seg input:checked + span { background: var(--ifl-azul); color: #fff; }
.ifl-seg input:focus-visible + span { outline: 3px solid var(--ifl-verde); outline-offset: 2px; }

.ifl-opciones { display: grid; gap: 10px; }
.ifl-opcion { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border: 1.5px solid #b9c4d0; border-radius: 12px; cursor: pointer; transition: border-color .15s, background .15s; }
.ifl-opcion input { width: 20px; height: 20px; accent-color: var(--ifl-azul); flex: none; margin: 0; }
.ifl-opcion__txt { flex: 1; min-width: 0; }
.ifl-opcion__txt small { display: block; color: var(--ifl-gris); font-size: 14px; }
.ifl-opcion__precio { font-weight: 700; color: var(--ifl-azul); white-space: nowrap; }
.ifl-opcion:has(input:checked) { border-color: var(--ifl-azul); background: #f2f6fb; }

.ifl-stock { display: inline-block; margin: -8px 0 16px !important; font-size: 14px; font-weight: 700; color: #8a4b00; background: #fff4e5; border-radius: 999px; padding: 6px 14px; }
.ifl-agotado { background: #fff4e5; border: 1px solid #f5c98a; color: #6b3a00; border-radius: 10px; padding: 12px 14px; margin: 0 0 14px !important; font-weight: 500; }
.ifl-seg input:disabled + span { opacity: .35; cursor: not-allowed; }
.ifl-trampa { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.ifl-legal { font-size: 13px; color: var(--ifl-gris); margin-top: 12px !important; text-align: center; }

/* Resumen */
.ifl-resumen__caja { background: var(--ifl-fondo); border: 1px solid var(--ifl-linea); border-radius: 18px; padding: 20px; }
.ifl-resumen__titulo { font-size: 20px; color: var(--ifl-azul); margin: 0 0 14px; font-weight: 800; }
.ifl-resumen__libro { display: flex; gap: 14px; align-items: center; margin-bottom: 14px; }
.ifl-resumen__libro img { width: 52px; border-radius: 2px 5px 5px 2px; box-shadow: 0 6px 14px rgba(34, 57, 90, .3); }
.ifl-resumen__libro p { margin: 0; font-size: 15px; line-height: 1.35; }
.ifl-resumen__libro span { color: var(--ifl-gris); font-size: 14px; }
.ifl-resumen__filas { margin: 0; border-top: 1px solid var(--ifl-linea); }
.ifl-resumen__filas > div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--ifl-linea); font-size: 16px; }
.ifl-resumen__filas dt { color: #3a4553; margin: 0; }
.ifl-resumen__filas dd { margin: 0; font-weight: 600; text-align: right; }
.ifl-resumen__total { font-size: 19px !important; }
.ifl-resumen__total dt, .ifl-resumen__total dd { color: var(--ifl-azul) !important; font-weight: 800 !important; }
.ifl-resumen__usd { font-size: 14px; color: #3a4553; margin: 10px 0 0 !important; }
.ifl-resumen__nota { font-size: 13px; color: var(--ifl-gris); margin: 10px 0 0 !important; }
.ifl-medios { list-style: none; margin: 14px 0 0; padding: 14px 0 0; border-top: 1px solid var(--ifl-linea); display: grid; gap: 6px; font-size: 14px; color: #3a4553; }
.ifl-medios li::before { content: "✓ "; color: #4a7a1d; font-weight: 800; }

/* Autores */
.ifl-autores { display: grid; gap: 22px; padding-top: 24px; padding-bottom: 40px; align-items: center; }
.ifl-autores img { border-radius: 18px; width: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.ifl-autores p { color: #3a4553; }

/* FAQ */
.ifl-faq { padding-bottom: 56px; }
.ifl-faq details { border-bottom: 1px solid var(--ifl-linea); }
.ifl-faq summary { cursor: pointer; list-style: none; padding: 18px 36px 18px 0; position: relative; font-weight: 700; color: var(--ifl-tinta); font-size: 17px; }
.ifl-faq summary::-webkit-details-marker { display: none; }
.ifl-faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 24px; font-weight: 400; color: var(--ifl-azul); }
.ifl-faq details[open] summary::after { content: "–"; }
.ifl-faq details p { color: #3a4553; padding-bottom: 6px; }
.ifl-afiliado { display: block; margin-top: 8px; color: var(--ifl-gris); font-size: 13px; }
.ifl-faq__cierre { text-align: center; margin-top: 28px !important; }

@media (min-width: 640px) {
	.ifl-fila { grid-template-columns: 1fr 1fr; }
	.ifl-fila--calle { grid-template-columns: 2fr 1fr; }
	.ifl-bloques { grid-template-columns: 1fr 1fr; }
	.ifl-opciones { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 900px) {
	.ifl-hero { grid-template-columns: 5fr 7fr; gap: 56px; padding: 48px 16px 64px; }
	.ifl-hero__tapa img { width: 100%; max-width: 380px; }
	.ifl-bloques { grid-template-columns: repeat(4, 1fr); }
	.ifl-pasos__lista { grid-template-columns: repeat(3, 1fr); gap: 28px; }
	.ifl-pasos__lista li { padding-left: 0; padding-top: 50px; }
	.ifl-compra__grilla { grid-template-columns: minmax(0, 1fr) 360px; gap: 48px; align-items: start; }
	.ifl-resumen { position: sticky; top: 96px; order: 2; }
	.ifl-autores { grid-template-columns: 5fr 7fr; gap: 48px; }
}
@media (max-width: 899px) {
	/* En el celular el resumen va arriba del formulario, compacto. */
	.ifl-resumen { order: -1; }
	.ifl-resumen__libro, .ifl-medios { display: none; }
}
@media (prefers-reduced-motion: reduce) {
	.ifl-btn, .ifl-opcion { transition: none; }
	.ifl-hero__tapa img { transform: none; }
}

/* 3.14.2: para quién, opinión y barra fija de compra en el celular. */
.ifl-quien { padding-top: 48px; }
.ifl-quien__lista { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 12px; }
.ifl-quien__lista li { background: #fff; border: 1px solid var(--ifl-linea); border-left: 4px solid var(--ifl-verde); border-radius: 12px; padding: 14px 16px; color: #3a4553; font-size: 16px; }
.ifl-quien__lista strong { color: var(--ifl-azul); }
.ifl-opinion { margin: 24px 0 0; padding: 22px 22px 18px; background: var(--ifl-azul); color: #fff; border-radius: var(--ifl-radio); }
.ifl-opinion__estrellas { color: var(--ifl-verde); font-size: 20px; letter-spacing: 3px; margin: 0 0 6px !important; }
.ifl-opinion blockquote { margin: 0; padding: 0; border: 0; }
.ifl-opinion blockquote p { font-size: 20px; line-height: 1.4; font-weight: 700; margin: 0 0 8px; color: #fff; }
.ifl-opinion figcaption { font-size: 14px; color: #c9d4e3; }
.ifl-btn--chico { min-height: 44px; padding: 0 22px; font-size: 16px; box-shadow: none; }
.ifl-barra { position: fixed; left: 0; right: 0; bottom: 0; z-index: 9990; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: #fff; border-top: 1px solid var(--ifl-linea); box-shadow: 0 -6px 20px rgba(34, 57, 90, .12); }
.ifl-barra__txt { margin: 0 !important; font-size: 15px; color: var(--ifl-gris); }
.ifl-barra__txt strong { font-size: 20px; color: var(--ifl-azul); margin-right: 4px; }
@media (min-width: 640px) { .ifl-quien__lista { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .ifl-barra { display: none !important; } }