/* =============================================================
   NIFIC — Landing de compra (comprar.html)
   Estilo editorial tipo Apple con la paleta y tipografías Nific.
   Se carga junto a styles.css (reutiliza tokens y campos de formulario).
   ============================================================= */
body.buy-page { background: var(--cream); }

/* ── Sub-nav del producto ── */
.buy-subnav {
  position: sticky; top: 0; z-index: 30;
  background: rgba(250,247,242,.9);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: flex-start;
  gap: 1.1rem; padding: .85rem var(--gutter);
}
.buy-subnav-name {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: 'Fraunces', serif; font-size: 1.15rem; font-weight: 400;
  font-style: italic; color: var(--ink); text-decoration: none;
}
.buy-subnav-name img { filter: brightness(0); display: block; }
.buy-subnav-links { display: flex; align-items: center; gap: clamp(1rem,3vw,2rem); }
.buy-subnav-links a {
  font-size: .85rem; color: var(--ink-mute); text-decoration: none;
  transition: color .25s var(--ease-out);
}
.buy-subnav-links a:hover { color: var(--wood-mid); }
.buy-subnav-back { color: var(--wood-mid) !important; }
/* Botón "Menú principal" en la barra (solo dentro de un producto) */
.buy-subnav-back[hidden] { display: none; }
.buy-subnav-back {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  display: inline-flex; align-items: center;
  padding: .5rem 1.1rem; border-radius: 100px; cursor: pointer;
  font-family: 'Inter', sans-serif; font-size: .82rem; font-weight: 600; letter-spacing: .02em;
  background: transparent; color: var(--wood-mid);
  border: 1.5px solid var(--wood-mid);
  transition: background .3s var(--ease-out), color .3s var(--ease-out);
}
.buy-subnav-back:hover { background: rgba(168,120,74,.12); color: var(--wood-mid); }
.buy-subnav-back:active { background: var(--wood-mid); color: var(--cream); }
@media (max-width: 600px) {
  .buy-subnav-name span { display: none; }
  .buy-subnav-links a:not(.buy-subnav-back) { display: none; }
  /* En móvil: el botón "Ver productos" a la derecha, sin solaparse con el logo */
  .buy-subnav-back {
    position: static; left: auto; top: auto; transform: none;
    margin-left: auto; flex-shrink: 0;
  }
  .buy-subnav-name { min-width: 0; }
}

/* ── Layout 2 columnas ── */
.buy-layout[hidden], .buy-chooser[hidden] { display: none !important; }
.buy-layout {
  max-width: 1240px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr;
  gap: clamp(2rem,5vw,4rem);
  padding: clamp(1.5rem,4vw,3rem) var(--gutter) clamp(3rem,7vw,5rem);
}
@media (min-width: 900px) {
  .buy-layout { grid-template-columns: 1.05fr .95fr; align-items: start; }
}

/* ── Móvil: texto arriba, luego foto, luego precio y formulario ── */
@media (max-width: 720px) {
  .buy-layout { display: flex; flex-direction: column; gap: 1.5rem; }
  .buy-panel { display: contents; }
  .buy-back     { order: 1; }
  .buy-head     { order: 2; }
  .buy-gallery  { order: 3; }
  .buy-price    { order: 4; }
  .buy-form     { order: 5; }
  .buy-pay      { order: 6; }
  /* el espaciado lo da el gap del flex; quitamos márgenes/bordes propios */
  .buy-head  { margin-bottom: 0; }
  .buy-price { margin: 0; padding-bottom: 0; border-bottom: none; }
  .buy-back  { margin-bottom: 0; }
}

/* ── Izquierda: imagen fija + ventajas ── */
.buy-gallery { position: relative; }
@media (min-width: 900px) {
  .buy-gallery { position: sticky; top: 100px; }
}
.buy-gallery-img {
  border-radius: 24px; overflow: hidden; background: #ffffff;
  aspect-ratio: 4/5; box-shadow: 0 30px 70px -25px rgba(30,16,9,.25);
}
.buy-gallery-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

.buy-perks {
  list-style: none; margin: 1.75rem 0 0; padding: 0;
  display: flex; justify-content: space-around; gap: 1rem; text-align: center;
}
.buy-perks li {
  display: flex; flex-direction: column; align-items: center; gap: .55rem;
  font-size: .76rem; color: var(--ink-mute); max-width: 9rem; line-height: 1.35;
}
.buy-perks svg { width: 26px; height: 26px; color: var(--wood-mid); }

/* ── Derecha: panel ── */
.buy-panel { max-width: 520px; }

/* ── Paso 1: rejilla de productos (estilo tienda) ── */
.buy-chooser {
  max-width: 1080px; margin: 0 auto;
  padding: clamp(2.5rem,6vw,4.5rem) var(--gutter) clamp(3rem,7vw,5rem);
}
.buy-chooser-head { text-align: center; margin-bottom: clamp(2rem,5vw,3.25rem); }
.buy-chooser-eyebrow {
  font-size: .8rem; font-weight: 600; letter-spacing: .04em;
  color: var(--wood-mid); margin-bottom: .85rem;
}
.buy-chooser-title {
  font-family: 'Fraunces', serif; font-weight: 300; line-height: 1.05;
  font-size: clamp(2.2rem,6vw,3.6rem); letter-spacing: -.025em; color: var(--ink);
  margin-bottom: .9rem;
}
.buy-chooser-title em { font-style: italic; color: var(--wood-mid); }
.buy-chooser-sub {
  font-size: 1rem; font-weight: 300; color: var(--ink-mute);
  max-width: 42ch; margin: 0 auto;
}
.buy-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem,2.5vw,1.75rem);
}
@media (max-width: 560px) { .buy-grid { grid-template-columns: 1fr; } }
.buy-card {
  display: flex; flex-direction: column; gap: 1.5rem;
  padding: clamp(1.75rem,3vw,2.5rem) clamp(1.5rem,2.5vw,2rem) clamp(1.5rem,2.5vw,2rem);
  background: #fff; border: 1px solid var(--line); border-radius: 22px;
  text-align: left; cursor: pointer; font: inherit; color: inherit;
  box-shadow: 0 18px 40px -28px rgba(30,16,9,.25);
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out);
}
.buy-card:hover { transform: translateY(-5px); box-shadow: 0 30px 60px -28px rgba(30,16,9,.32); }
.buy-card:active { transform: translateY(-2px); }
.buy-card-media {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 1/1; border-radius: 14px; overflow: hidden;
}
.buy-card-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.buy-card-info { display: flex; flex-direction: column; gap: .35rem; }
.buy-card-tag {
  font-size: .8rem; font-weight: 600; letter-spacing: .02em; color: var(--wood-mid);
}
.buy-card-name {
  font-family: 'Fraunces', serif; font-weight: 400; font-size: clamp(1.3rem,2.5vw,1.6rem);
  letter-spacing: -.01em; color: var(--ink); line-height: 1.15;
}
.buy-card-price { margin-top: .6rem; font-size: 1rem; color: var(--ink-mute); }

/* Botón volver al listado */
.buy-back {
  display: inline-flex; align-items: center; gap: .4rem;
  margin-bottom: 1.5rem; padding: 0; border: none; background: none; cursor: pointer;
  font-family: 'Inter', sans-serif; font-size: .85rem; font-weight: 500;
  color: var(--ink-mute); transition: color .25s var(--ease-out);
}
.buy-back:hover { color: var(--wood-mid); }
.buy-eyebrow {
  font-size: .8rem; font-weight: 600; letter-spacing: .04em;
  color: var(--wood-mid); margin-bottom: .85rem;
}
.buy-title {
  font-family: 'Fraunces', serif; font-weight: 300; line-height: 1.06;
  font-size: clamp(2.1rem,5.5vw,3.4rem); letter-spacing: -.025em;
  color: var(--ink); margin-bottom: 1.1rem;
}
.buy-title em { font-style: italic; color: var(--wood-mid); }
.buy-desc {
  font-size: 1rem; font-weight: 300; line-height: 1.7;
  color: var(--ink-mute); margin-bottom: 1.5rem;
}
.buy-price {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding-bottom: 2rem; margin-bottom: 2rem; border-bottom: 1px solid var(--line);
}
.buy-price-main { display: flex; align-items: baseline; gap: .25rem; flex-wrap: wrap; }
.buy-price-amount {
  font-family: 'Fraunces', serif; font-weight: 300; font-style: italic;
  font-size: clamp(2.4rem,6vw,3.4rem); color: var(--ink); line-height: 1;
}
.buy-price-cur { font-family: 'Fraunces', serif; font-size: 1.4rem; color: var(--ink); }
.buy-price-note { font-size: .8rem; color: var(--ink-mute); margin-left: .5rem; }

/* ── Secciones del formulario ── */
.buy-section { margin-bottom: 2.25rem; }
.buy-section-title {
  font-size: 1.05rem; font-weight: 600; letter-spacing: .01em;
  color: var(--ink); margin-bottom: 1rem;
}

/* Selector de cantidad */
.buy-qty {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
}
.buy-qty-stepper {
  display: inline-flex; align-items: center;
  border: 1.5px solid var(--line); border-radius: 100px;
  background: var(--cream); overflow: hidden;
}
.buy-qty-btn {
  width: 46px; height: 46px; border: none; background: none; cursor: pointer;
  font-size: 1.4rem; line-height: 1; color: var(--ink);
  display: flex; align-items: center; justify-content: center;
  transition: background .2s var(--ease-out), color .2s var(--ease-out);
}
.buy-qty-btn:hover { background: var(--wood-mid); color: var(--cream); }
.buy-qty-input {
  width: 48px; height: 46px; border: none; background: none; text-align: center;
  font-family: 'Fraunces', serif; font-size: 1.1rem; font-style: italic; color: var(--ink);
  -moz-appearance: textfield; appearance: textfield;
}
.buy-qty-input::-webkit-outer-spin-button,
.buy-qty-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.buy-qty-input:focus { outline: none; }
.buy-qty-total { display: flex; flex-direction: column; align-items: flex-end; gap: .15rem; }
.buy-qty-total-label { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-mute); }
.buy-qty-total-amount { font-family: 'Fraunces', serif; font-size: 1.6rem; font-style: italic; color: var(--ink); line-height: 1; }
.buy-qty-note { font-size: .78rem; color: var(--ink-mute); margin-top: .75rem; }

/* Tarjetas de opción (estilo Apple) */
.buy-options { display: flex; flex-direction: column; gap: .75rem; margin-bottom: 1.25rem; }
.buy-option {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.1rem 1.25rem; border-radius: 14px; cursor: pointer;
  border: 1.5px solid var(--line); background: var(--cream);
  transition: border-color .25s var(--ease-out), box-shadow .25s var(--ease-out);
}
.buy-option:hover { border-color: rgba(168,120,74,.5); }
.buy-option input { position: absolute; opacity: 0; width: 0; height: 0; }
.buy-option-main { flex: 1; display: flex; flex-direction: column; gap: .25rem; }
.buy-option-name { font-size: .95rem; font-weight: 500; color: var(--ink); }
.buy-option-desc { font-size: .82rem; font-weight: 300; line-height: 1.45; color: var(--ink-mute); }
.buy-option-tag { font-size: .82rem; font-weight: 500; color: var(--wood-mid); flex-shrink: 0; }
.buy-option:has(input:checked) {
  border-color: var(--wood-mid);
  box-shadow: 0 0 0 1px var(--wood-mid), 0 8px 24px -12px rgba(168,120,74,.5);
}

/* Campos de personalización (toggle) */
.buy-perso-fields {
  margin-top: 1.1rem; max-height: 600px; overflow: hidden;
  transition: max-height .4s var(--ease-out), opacity .3s var(--ease-out), margin .3s;
}
.buy-perso-fields.is-hidden { max-height: 0; opacity: 0; margin-top: 0; }

/* Subida de logo */
.buy-file { display: flex; flex-direction: column; gap: .5rem; }
.buy-file-label { font-size: .85rem; font-weight: 500; color: var(--ink); }
.buy-file-hint { font-weight: 300; color: var(--ink-mute); }
.buy-file-drop {
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
  padding: 1.75rem 1rem; text-align: center; cursor: pointer;
  border: 1.5px dashed rgba(168,120,74,.45); border-radius: 14px;
  background: rgba(168,120,74,.05); color: var(--wood-mid);
  transition: border-color .25s var(--ease-out), background .25s var(--ease-out);
}
.buy-file-drop:hover { border-color: var(--wood-mid); background: rgba(168,120,74,.1); }
.buy-file-text { font-size: .85rem; color: var(--ink-mute); }
.buy-file.has-file .buy-file-drop { border-style: solid; border-color: var(--wood-mid); background: rgba(168,120,74,.12); }
.buy-file.has-file .buy-file-text { color: var(--ink); font-weight: 500; }
.buy-file-input { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
.buy-file .form-error { max-height: 0; overflow: hidden; opacity: 0; transition: max-height .25s, opacity .25s; }
.buy-file.has-error .form-error { max-height: 2rem; opacity: 1; }
.buy-file.has-error .buy-file-drop { border-color: #C0624A; }

.buy-form .form-field { margin-bottom: 1.1rem; }

/* Botón enviar */
.buy-submit {
  width: 100%; display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  padding: 1.05rem 2rem; margin-top: .5rem;
  background: var(--ink); color: var(--cream);
  font-family: 'Inter', sans-serif; font-size: .95rem; font-weight: 600; letter-spacing: .03em;
  border: none; border-radius: 100px; cursor: pointer;
  transition: background .3s var(--ease-out), transform .2s var(--ease-out);
}
.buy-submit:hover { background: var(--wood-mid); }
.buy-submit:active { transform: scale(.98); }
.buy-submit.is-loading, .buy-submit:disabled { opacity: .6; pointer-events: none; }
.buy-form-note { font-size: .78rem; color: var(--ink-mute); text-align: center; margin-top: .9rem; }

/* Paso de pago */
.buy-pay { text-align: center; padding: 1rem 0; display: none; flex-direction: column; align-items: center; gap: .75rem; }
.buy-pay[aria-hidden="false"] { display: flex; }
.buy-pay-check { color: #6A9E6F; }
.buy-pay-title { font-family: 'Fraunces', serif; font-size: 1.6rem; font-style: italic; color: var(--ink); }
.buy-pay-text { font-size: .92rem; color: var(--ink-mute); max-width: 38ch; }
.buy-pay-btn {
  display: inline-flex; align-items: center; justify-content: center;
  margin-top: .75rem; padding: 1.05rem 3rem;
  background: var(--ink); color: var(--cream);
  font-size: 1rem; font-weight: 600; letter-spacing: .03em;
  border-radius: 100px; text-decoration: none;
  transition: background .3s var(--ease-out), transform .25s var(--ease-out);
}
.buy-pay-btn:hover { background: var(--wood-mid); transform: translateY(-2px); }
.buy-pay-small { font-size: .75rem; color: var(--ink-mute); }

/* Footer */
.buy-footer {
  max-width: 1240px; margin: 0 auto;
  padding: 2rem var(--gutter) 3rem; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; justify-content: space-between;
  font-size: .78rem; color: var(--ink-mute);
}
.buy-footer-links { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.buy-footer-links a { color: var(--ink-mute); text-decoration: none; transition: color .25s; }
.buy-footer-links a:hover { color: var(--wood-mid); }
@media (max-width: 719px) { .buy-footer { justify-content: center; text-align: center; } }