/* ============================================================================
   MercadoRD — Componentes de las mejoras (reutilizables por todas las fases)
   Chips de filtro · barra de contacto fija · skeletons · modal · lightbox
   Usa los tokens de tokens.css (--border, --surface, --ink, --muted, --nav…).
   ========================================================================== */

/* --- Chips (filtros activos, respuestas rápidas, categorías) --- */
.mr-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.mr-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--ink); font-size: 13px; font-weight: 600;
  transition: background .15s, border-color .15s, color .15s;
}
.mr-chip:hover { border-color: var(--nav); }
.mr-chip.on { background: var(--nav); border-color: var(--nav); color: #fff; }
.mr-chip .x { opacity: .7; font-weight: 700; }

/* --- Barra de contacto fija (detalle del anuncio, móvil) --- */
.mr-sticky-contact {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; background: var(--surface);
  border-top: 1px solid var(--border);
  box-shadow: 0 -6px 20px rgba(0,0,0,.10);
}
.mr-sticky-contact .price { font-family: var(--font-head, inherit); font-weight: 800; font-size: 18px; color: var(--ink); white-space: nowrap; }
.mr-sticky-contact .actions { display: flex; gap: 8px; margin-left: auto; }
@media (min-width: 900px) { .mr-sticky-contact { display: none; } } /* en desktop se usa tarjeta sticky */
.mr-sticky-side { position: sticky; top: 90px; }
/* En escritorio, el panel de contacto del detalle se queda fijo al hacer scroll. */
@media (min-width: 901px) { .detail-panel { position: sticky; top: 86px; align-self: start; } }
/* En móvil, deja espacio al pie para que la barra fija no tape el contenido. */
@media (max-width: 899px) { body { padding-bottom: 78px; } }

/* --- Ficha técnica agrupada (detalle) --- */
.mr-ficha { position: relative; }
.mr-ficha-group { font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin: 14px 0 4px; }
.mr-ficha-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 26px; }
@media (max-width: 640px) { .mr-ficha-grid { grid-template-columns: 1fr; } }
.mr-ficha-row { display: flex; align-items: center; gap: 9px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.mr-ficha-row i { width: 17px; height: 17px; color: var(--muted); flex-shrink: 0; }
.mr-ficha-row .k { color: var(--muted); }
.mr-ficha-row .v { margin-left: auto; font-weight: 600; color: var(--ink); text-align: right; }
.mr-ficha.collapsed .mr-ficha-inner { max-height: 300px; overflow: hidden; -webkit-mask-image: linear-gradient(#000 72%, transparent); mask-image: linear-gradient(#000 72%, transparent); }
.mr-ficha-more { margin-top: 12px; background: none; border: 1px solid var(--border); border-radius: 8px; padding: 9px 16px; font-weight: 700; font-size: 13px; color: var(--ink); cursor: pointer; }
.mr-ficha-more:hover { background: var(--surface-2); border-color: var(--nav); }

/* --- Toggle de vista grid/lista (Fase 14) --- */
.mr-viewtoggle { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.mr-viewtoggle button { background: var(--surface); border: 0; padding: 8px 10px; cursor: pointer; color: var(--muted); display: flex; align-items: center; }
.mr-viewtoggle button.on { background: var(--nav); color: #fff; }
.mr-list { display: flex; flex-direction: column; gap: 12px; }
.mr-list .prod { display: grid; grid-template-columns: 160px 1fr; align-items: stretch; }
.mr-list .prod .prod-img { height: 100%; min-height: 130px; }
.mr-list .prod .prod-body { padding: 12px 16px; }
@media (max-width: 520px) { .mr-list .prod { grid-template-columns: 110px 1fr; } .mr-list .prod .prod-img { min-height: 110px; } }

/* --- Selector de categoría "Todo" del buscador --- */
.mr-catdrop { display: none; position: absolute; top: calc(100% + 8px); left: 0; min-width: 210px; max-height: 360px; overflow: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; box-shadow: var(--shadow-lg); z-index: 60; }
.mr-catdrop.open { display: block; }
.mr-catdrop a { display: block; padding: 10px 14px; color: var(--ink); text-decoration: none; font-size: 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.mr-catdrop a:last-child { border-bottom: 0; }
.mr-catdrop a:hover { background: var(--surface-2); }

/* --- Menú lateral izquierdo de categorías (drawer) --- */
.mr-drawer-overlay { position: fixed; inset: 0; background: rgba(11,17,27,.5); opacity: 0; visibility: hidden; transition: opacity .2s; z-index: 1200; }
.mr-drawer-overlay.open { opacity: 1; visibility: visible; }
.mr-drawer { position: fixed; top: 0; left: 0; bottom: 0; width: 300px; max-width: 85vw; background: var(--surface); transform: translateX(-100%); transition: transform .25s ease; z-index: 1201; display: flex; flex-direction: column; box-shadow: 0 0 40px rgba(0,0,0,.3); }
.mr-drawer.open { transform: translateX(0); }
.mr-drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--border); font-weight: 800; font-size: 16px; color: var(--ink); }
.mr-drawer-head button { background: none; border: 0; font-size: 26px; line-height: 1; cursor: pointer; color: var(--muted); }
.mr-drawer-body { overflow: auto; padding: 8px 0 24px; }
.mr-drawer-link { display: flex; align-items: center; gap: 10px; padding: 11px 18px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 14px; }
.mr-drawer-link:hover { background: var(--surface-2); }
.mr-drawer-sub { display: block; padding: 8px 18px 8px 46px; color: var(--muted); text-decoration: none; font-size: 13px; }
.mr-drawer-sub:hover { background: var(--surface-2); color: var(--ink); }

/* --- Mega-menú de categorías (Fase 16) --- */
.mr-mega { position: fixed; z-index: 1100; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow-lg); display: none; overflow: hidden; }
.mr-mega.open { display: flex; }
.mr-mega-nav { width: 244px; flex: 0 0 244px; background: var(--surface-2); border-right: 1px solid var(--border); padding: 8px 0; max-height: 72vh; overflow: auto; }
.mr-mega-cat { display: flex; align-items: center; gap: 10px; padding: 9px 16px; color: var(--ink); text-decoration: none; font-size: 14px; font-weight: 600; border-left: 3px solid transparent; }
.mr-mega-cat .mm-ic { width: 22px; display: flex; justify-content: center; color: var(--muted); }
.mr-mega-cat:hover, .mr-mega-cat.active { background: var(--surface); border-left-color: var(--cta); }
.mr-mega-cat.active .mm-ic { color: var(--cta-600); }
.mr-mega-panels { flex: 1; padding: 18px 22px; max-height: 72vh; overflow: auto; min-width: 0; }
.mr-mega-panel { display: none; }
.mr-mega-panel.active { display: block; }
.mr-mega-panel .mm-head { display: flex; align-items: center; gap: 11px; margin-bottom: 14px; }
.mr-mega-panel .mm-head .mm-dot { width: 34px; height: 34px; border-radius: 9px; display: flex; align-items: center; justify-content: center; color: #fff; flex: 0 0 34px; }
.mr-mega-panel .mm-head a { font-weight: 800; font-size: 16px; color: var(--ink); text-decoration: none; }
.mr-mega-panel .mm-head a:hover { color: var(--cta-600); }
.mr-mega-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 2px 18px; }
.mr-mega-grid a { display: block; padding: 7px 8px; border-radius: 6px; color: var(--muted); text-decoration: none; font-size: 13.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mr-mega-grid a:hover { background: var(--surface-2); color: var(--cta-600); }
.mr-mega-empty { color: var(--muted); font-size: 13px; padding: 6px 0; }
@media (max-width: 900px) { .mr-mega { display: none !important; } }

/* --- Chat: respuestas rápidas (Fase 29) --- */
.mr-qchip { display: inline-flex; align-items: center; gap: 5px; padding: 7px 13px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--ink); font-size: 13px; font-weight: 600; cursor: pointer; text-decoration: none; }
.mr-qchip:hover { border-color: var(--cta); text-decoration: none; }

/* --- Perfil de vendedor / tienda (Fase 26) --- */
.mr-store-head { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; margin: 8px 0 16px; }
.mr-store-banner { height: 150px; background: linear-gradient(120deg, var(--nav) 0%, var(--nav-3) 100%); background-size: cover; background-position: center; }
.mr-store-info { display: flex; align-items: flex-end; gap: 16px; flex-wrap: wrap; padding: 0 20px 18px; margin-top: -34px; }
.mr-store-logo { width: 84px; height: 84px; border-radius: 16px; border: 3px solid var(--surface); background: var(--nav); color: var(--cta); display: flex; align-items: center; justify-content: center; font-family: var(--font-head); font-weight: 800; font-size: 34px; overflow: hidden; flex: 0 0 84px; box-shadow: var(--shadow); }
.mr-store-logo img { width: 100%; height: 100%; object-fit: cover; }
.mr-store-info > div:nth-child(2) { padding-bottom: 4px; }
.mr-store-stats { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 6px; color: var(--muted); font-size: 13.5px; }
.mr-store-stats b { color: var(--ink); }
.mr-badge { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .03em; padding: 3px 9px; border-radius: 5px; }
.mr-badge-ok { background: rgba(18,122,75,.14); color: var(--ok); }
.mr-badge-info { background: rgba(14,90,167,.14); color: var(--info); }
.mr-badge-nav { background: var(--nav); color: var(--cta); }
.mr-badge-warn { background: rgba(245,168,44,.18); color: var(--cta-600); }
.mr-tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 18px; }
.mr-tab { background: none; border: 0; border-bottom: 2px solid transparent; margin-bottom: -2px; padding: 10px 16px; font-size: 15px; font-weight: 700; color: var(--muted); cursor: pointer; }
.mr-tab.active { color: var(--ink); border-bottom-color: var(--cta); }
.mr-tabpane { display: none; }
.mr-tabpane.active { display: block; }

/* --- Colecciones: pestañas (Fase 24) --- */
.mr-coltabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.mr-coltab { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--ink); text-decoration: none; font-weight: 700; font-size: 14px; cursor: pointer; }
.mr-coltab:hover { border-color: var(--cta); text-decoration: none; }
.mr-coltab.active { background: var(--nav); color: #fff; border-color: var(--nav); }
.mr-coltab-n { font-size: 11px; font-weight: 800; background: rgba(0,0,0,.12); padding: 1px 7px; border-radius: 999px; }
.mr-coltab.active .mr-coltab-n { background: rgba(255,255,255,.25); }
.mr-coltab-add { color: var(--cta-600); border-style: dashed; }

/* --- Badge de bajada de precio (Fase 22) --- */
.prod-drop { position: absolute; left: 9px; bottom: 9px; display: inline-flex; align-items: center; gap: 4px; background: var(--danger); color: #fff; font-size: 11px; font-weight: 800; padding: 3px 8px; border-radius: 5px; box-shadow: 0 2px 6px rgba(0,0,0,.2); }
.prod-oldprice { font-size: 12.5px; font-weight: 600; color: var(--muted); text-decoration: line-through; margin-left: 6px; }

/* --- Botón escanear en el buscador (Fase 17) --- */
.searchbar .mr-scanbtn { width: 44px; background: #fff; color: var(--muted); border-right: 1px solid var(--line); }
.searchbar .mr-scanbtn:hover { color: var(--nav); background: #f2f4f6; }

/* --- Búsqueda por voz (Fase 18) --- */
.mr-voice-pulse { width: 76px; height: 76px; margin: 6px auto 0; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; background: var(--cta-600); box-shadow: 0 0 0 0 rgba(232,153,14,.55); animation: mrVoicePulse 1.4s infinite; }
@keyframes mrVoicePulse { 0% { box-shadow: 0 0 0 0 rgba(232,153,14,.55); } 70% { box-shadow: 0 0 0 18px rgba(232,153,14,0); } 100% { box-shadow: 0 0 0 0 rgba(232,153,14,0); } }

/* --- Categorías destacadas en portada (Fase 16) --- */
.mr-destcats { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin: 12px 0 8px; }
.mr-destcat { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 12px; display: flex; flex-direction: column; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); transition: box-shadow .15s, transform .15s; }
.mr-destcat:hover { box-shadow: var(--shadow); transform: translateY(-2px); text-decoration: none; }
.mr-destcat .dic { width: 54px; height: 54px; border-radius: 15px; display: flex; align-items: center; justify-content: center; color: #fff; }
.mr-destcat .dname { font-size: 13px; font-weight: 700; text-align: center; line-height: 1.2; }
.mr-destcat .dcount { font-size: 11px; color: var(--muted); font-weight: 600; }
@media (max-width: 900px) { .mr-destcats { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .mr-destcats { grid-template-columns: repeat(2, 1fr); } }

/* --- Filtros: toggle en móvil + sidebar colapsable (Fase 13) --- */
.mr-filter-toggle { display: none; }
@media (max-width: 900px) {
  .mr-filter-toggle { display: inline-flex !important; }
  .cat-sidebar { display: none; }
  .cat-sidebar.open { display: block; margin-bottom: 16px; }
}

/* --- Carrusel horizontal de relacionados (detalle) --- */
.mr-carousel { display: flex; gap: 14px; overflow-x: auto; padding: 2px 2px 12px; scroll-snap-type: x proximity; -webkit-overflow-scrolling: touch; }
.mr-carousel > .prod { flex: 0 0 210px; scroll-snap-align: start; }
@media (max-width: 640px) { .mr-carousel > .prod { flex-basis: 165px; } }
.mr-carousel::-webkit-scrollbar { height: 8px; }
.mr-carousel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.mr-carousel::-webkit-scrollbar-track { background: transparent; }

/* --- Skeletons (placeholders de carga) --- */
.mr-skel { position: relative; overflow: hidden; background: var(--surface-2, #eceff3); border-radius: 8px; }
.mr-skel::after {
  content: ""; position: absolute; inset: 0; transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.55), transparent);
  animation: mr-shimmer 1.2s infinite;
}
@keyframes mr-shimmer { 100% { transform: translateX(100%); } }

/* --- Modal / overlay genérico --- */
.mr-modal-backdrop {
  position: fixed; inset: 0; z-index: 1000; display: flex;
  align-items: center; justify-content: center; padding: 20px;
  background: rgba(11,17,27,.55); backdrop-filter: blur(2px);
  opacity: 0; transition: opacity .18s;
}
.mr-modal-backdrop.show { opacity: 1; }
.mr-modal-card {
  background: var(--surface); color: var(--ink); border-radius: 14px;
  max-width: 520px; width: 100%; max-height: 88vh; overflow: auto;
  box-shadow: 0 24px 60px rgba(0,0,0,.35); transform: translateY(8px); transition: transform .18s;
}
.mr-modal-backdrop.show .mr-modal-card { transform: translateY(0); }
.mr-modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.mr-modal-head h3 { margin: 0; font-size: 16px; font-weight: 800; }
.mr-modal-body { padding: 18px; }
.mr-modal-x { background: none; border: 0; cursor: pointer; font-size: 22px; line-height: 1; color: var(--muted); }

/* --- Galería del detalle: abrir a pantalla completa --- */
.gallery-main { position: relative; cursor: zoom-in; }
.gal-zoom {
  position: absolute; top: 10px; right: 10px; display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 8px; background: rgba(11,17,27,.55); color: #fff;
  pointer-events: none; opacity: .85; transition: opacity .15s;
}
.gallery-main:hover .gal-zoom { opacity: 1; }

/* --- Lightbox (galería a pantalla completa con zoom) --- */
.mr-lightbox {
  position: fixed; inset: 0; z-index: 1100; display: flex; flex-direction: column;
  background: rgba(6,10,16,.96); opacity: 0; transition: opacity .18s;
}
.mr-lightbox.show { opacity: 1; }
.mr-lightbox__top { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; color: #fff; }
.mr-lightbox__count { font-size: 14px; font-weight: 700; opacity: .9; }
.mr-lightbox__x { background: none; border: 0; color: #fff; font-size: 30px; cursor: pointer; line-height: 1; }
.mr-lightbox__stage { flex: 1; display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.mr-lightbox__img { max-width: 94vw; max-height: 76vh; object-fit: contain; cursor: zoom-in; transition: transform .2s; user-select: none; -webkit-user-drag: none; }
.mr-lightbox__img.zoom { cursor: zoom-out; transform: scale(2); }
.mr-lightbox__nav { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,.14); border: 0; color: #fff; width: 46px; height: 46px; border-radius: 50%; font-size: 24px; cursor: pointer; }
.mr-lightbox__nav:hover { background: rgba(255,255,255,.28); }
.mr-lightbox__nav.prev { left: 14px; } .mr-lightbox__nav.next { right: 14px; }
.mr-lightbox__thumbs { display: flex; gap: 8px; padding: 12px 18px; overflow-x: auto; justify-content: center; }
.mr-lightbox__thumbs img { width: 54px; height: 54px; object-fit: cover; border-radius: 8px; opacity: .5; cursor: pointer; border: 2px solid transparent; }
.mr-lightbox__thumbs img.on { opacity: 1; border-color: #fff; }
body.mr-noscroll { overflow: hidden; }