/* =========================================================
   NEKTAR BAMBÚ — estilos
   Calcado de la maqueta aprobada (PDF). Una sola familia
   tipográfica (Montserrat) jugando con peso/itálica para
   la jerarquía, sin introducir una dirección de diseño propia.

   Paleta (tomada del isotipo Nektar):
     tinta        #242320   texto principal
     fondo        #ffffff   fondo general
     modulo       #eeeeec   fondo de módulos (interactivo, footer)
     tarjeta      #f2f2f0   fondo de tarjetas de producto
     borde        #dcdcd8   bordes neutros
     verde-oscuro #3f5c34   footer, texto de precio/acento fuerte
     verde-medio  #6b8f4e   bordes activos, filtros seleccionados
     verde-claro  #c7d96a   outline de selección múltiple (como el PDF)
     acento       #d9691f   badge de carrito, detalles cálidos
   ========================================================= */

:root {
  --tinta: #242320;
  --fondo: #ffffff;
  --modulo: #eeeeec;
  --tarjeta: #f2f2f0;
  --borde: #dcdcd8;
  --verde-oscuro: #3f5c34;
  --verde-medio: #6b8f4e;
  --verde-claro: #c7d96a;
  --acento: #d9691f;
  --verde-wa: #1E8449;   /* verde estilo WhatsApp con contraste suficiente para letra blanca (4.7:1) */

  --font: "Montserrat", sans-serif;

  --radio: 10px;
  --radio-chico: 6px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--fondo);
  color: var(--tinta);
  font-family: var(--font);
  line-height: 1.5;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

a { color: inherit; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--acento); outline-offset: 2px; }

/* ---------- 1. ENCABEZADO ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(16px, 4vw, 48px);
  background: var(--fondo);
  border-bottom: 1px solid var(--borde);
  position: sticky;
  top: 0;
  z-index: 40;
}

.logo { display: flex; align-items: center; text-decoration: none; }
.logo-img { height: clamp(22px, 3.2vw, 30px); width: auto; display: block; }

.cart-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--fondo);
  border: 1.5px solid var(--verde-medio);
  border-radius: 999px;
  padding: 7px 16px;
  color: var(--tinta);
  transition: background 0.15s ease;
}
.cart-pill:hover { background: var(--modulo); }
.cart-icon { width: 19px; height: 19px; }
.cart-count {
  background: var(--acento);
  color: var(--fondo);
  font-size: 0.7rem;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}
.cart-subtotal {
  font-weight: 700;
  font-style: italic;
  font-size: 0.95rem;
  color: var(--verde-medio);
}

/* ---------- 2. MÓDULO INTERACTIVO ---------- */
.interactive {
  scroll-margin-top: 72px;
  padding: clamp(20px, 4vw, 40px) clamp(16px, 4vw, 48px);
  background: var(--modulo);
  border-bottom: 1px solid var(--borde);
}
.interactive-inner { max-width: 1200px; margin: 0 auto; }

/* -- bienvenida -- */
.bienvenida {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
}
@media (max-width: 760px) { .bienvenida { grid-template-columns: 1fr; } }

.bienvenida h1 {
  font-weight: 500;
  font-style: italic;
  font-size: clamp(1.3rem, 2.8vw, 1.9rem);
  line-height: 1.3;
  margin: 0 0 14px;
  max-width: 26ch;
}
.bienvenida p {
  font-style: italic;
  max-width: 58ch;
  color: color-mix(in srgb, var(--tinta) 78%, transparent);
  margin: 0 0 22px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--fondo);
  border: 1.5px solid var(--borde);
  border-radius: 999px;
  padding: 12px 20px;
  max-width: 480px;
}
.search-box svg { flex-shrink: 0; color: var(--verde-medio); width: 20px; height: 20px; }
.search-box input {
  border: none; background: transparent;
  font-family: inherit; font-size: 1rem; color: var(--tinta); width: 100%;
}
.search-box input:focus { outline: none; }
.search-box input::placeholder { color: color-mix(in srgb, var(--tinta) 45%, transparent); }

.bienvenida-badge {
  width: clamp(120px, 18vw, 190px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bienvenida-badge img { width: 100%; height: auto; display: block; }

/* -- pedido (panel + chat) -- */
.pedido {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 4vw, 40px);
}
@media (max-width: 760px) { .pedido { grid-template-columns: 1fr; } }

.pedido-panel h2, .chat-panel h2 {
  font-weight: 700;
  font-size: 1.2rem;
  margin: 0 0 14px;
}

.pedido-lista { list-style: none; margin: 0 0 18px; padding: 0; }
.pedido-lista li {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 8px 0; border-bottom: 1px dashed var(--borde);
  font-style: italic;
}
.pedido-lista .item-qty-controls { display: flex; align-items: center; gap: 8px; font-style: normal; }
.qty-btn {
  width: 24px; height: 24px; border-radius: 50%;
  border: 1px solid var(--verde-medio); background: var(--fondo);
  color: var(--verde-oscuro); line-height: 1; font-weight: 700;
}

.pedido-vacio { font-style: italic; color: color-mix(in srgb, var(--tinta) 55%, transparent); }

.opciones-grupo { margin-bottom: 16px; }
.opciones-grupo-titulo { font-weight: 700; font-size: 0.95rem; margin-bottom: 8px; }
.opcion-radio { display: flex; align-items: flex-start; gap: 8px; padding: 4px 0; cursor: pointer; }
.opcion-radio input { margin-top: 4px; accent-color: var(--acento); }
.opcion-radio .opcion-texto { font-style: italic; }
.opcion-radio small { display: block; font-style: normal; opacity: 0.65; }

.pedido-subtotal {
  display: flex; justify-content: space-between; align-items: baseline;
  font-weight: 700; font-size: 1.1rem;
  margin-top: 14px; padding-top: 12px; border-top: 1.5px solid var(--tinta);
}

.envio-gratis-aviso {
  font-size: 0.85rem; margin-top: 8px; padding: 8px 12px;
  border-radius: var(--radio-chico);
  background: color-mix(in srgb, var(--verde-claro) 45%, transparent);
}
.envio-gratis-aviso.cumplido { background: color-mix(in srgb, var(--verde-medio) 35%, transparent); font-weight: 700; }

.chat-panel {
  background: var(--fondo);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 20px;
  display: flex;
  flex-direction: column;
}
.chat-textarea {
  flex: 1; min-height: 140px; border: none; background: transparent;
  font-family: inherit; font-style: italic; font-size: 1rem; color: var(--tinta);
  resize: vertical; margin-bottom: 12px;
}
.chat-textarea:focus { outline: none; }

.enviar-btn {
  align-self: flex-end;
  width: 46px; height: 46px; border-radius: 50%; border: none;
  background: transparent; padding: 0;
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.15s ease;
}
.enviar-btn:hover { transform: scale(1.06); }
.enviar-btn img { width: 100%; height: 100%; display: block; }

/* -- información (detalle de ítem) -- */
.info-detalle {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(20px, 4vw, 40px);
  align-items: start;
}
@media (max-width: 760px) { .info-detalle { grid-template-columns: 1fr; } }

.info-galeria {
  position: relative;
  background: var(--tarjeta);
  border-radius: var(--radio);
  overflow: hidden;
  height: clamp(220px, 32vw, 320px);
  display: flex; align-items: center; justify-content: center;
}
.info-galeria img, .info-galeria svg { height: 100%; width: auto; max-width: 100%; object-fit: contain; mix-blend-mode: multiply; border-radius: 10px; }
.info-galeria-dots {
  position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 6px;
}
.info-galeria-dots span { width: 7px; height: 7px; border-radius: 50%; background: color-mix(in srgb, var(--tinta) 25%, transparent); }
.info-galeria-dots span.activo { background: var(--tinta); }
.info-galeria-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: color-mix(in srgb, var(--tinta) 55%, transparent);
  color: var(--fondo); border: none; width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.info-galeria-nav.prev { left: 10px; }
.info-galeria-nav.next { right: 10px; }

.info-contenido h2 { font-weight: 700; font-size: 1.4rem; margin: 0 0 4px; }
.info-contenido .info-spec { color: var(--verde-oscuro); font-weight: 700; font-style: italic; margin: 0 0 12px; }
.info-contenido p { margin: 0 0 16px; }

.info-audio {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--borde); border-radius: 999px; padding: 8px 16px;
  width: fit-content; background: var(--fondo);
}
.info-audio button {
  background: var(--verde-oscuro); color: var(--fondo); border: none;
  border-radius: 50%; width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
}
.info-cerrar {
  margin-top: 18px; background: none; border: none; text-decoration: underline;
  color: var(--verde-oscuro); font-size: 0.9rem; padding: 0; font-weight: 600;
}

/* ---------- 3. ÍTEMS ---------- */
.catalog {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 28px;
  padding: clamp(24px, 4vw, 40px) clamp(16px, 4vw, 48px);
  max-width: 1400px;
  margin: 0 auto;
}
@media (max-width: 760px) {
  .catalog { grid-template-columns: 1fr; }
  .filters { order: -1; }
}

.filters-label {
  display: block; font-weight: 800; font-size: 1.05rem;
  margin-bottom: 14px; letter-spacing: 0.01em;
}
.filters-list { display: flex; flex-direction: column; gap: 2px; }
@media (max-width: 760px) { .filters-list { flex-direction: row; flex-wrap: wrap; gap: 8px; } }

.filtro-btn {
  text-align: left; background: none; border: none; padding: 8px 10px;
  border-radius: var(--radio-chico);
  color: color-mix(in srgb, var(--tinta) 78%, transparent);
  font-size: 0.92rem; font-weight: 500;
}
.filtro-btn:hover { background: var(--modulo); }
.filtro-btn.activo { background: var(--modulo); color: var(--tinta); font-weight: 700; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 16px;
}

.card {
  background: var(--tarjeta);
  border: 2px solid transparent;
  border-radius: var(--radio);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  transition: border-color 0.15s ease;
  cursor: pointer;
}
.card.seleccionado { border-color: var(--verde-claro); }
.card.activo { border-color: var(--verde-oscuro); }

.card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  justify-content: center;
}

.card-sin-stock {
  display: block;
  width: 100%;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.15;
  color: var(--fondo);
  background: color-mix(in srgb, var(--tinta) 72%, transparent);
  padding: 10px;
  border-radius: 999px;
}

.card-top { display: flex; justify-content: space-between; align-items: flex-start; }
.card-titulo { font-weight: 700; font-size: 1rem; margin: 0; font-style: italic; }
.card-subtitulo {
  display: block; font-style: italic; font-weight: 500; font-size: 0.85rem;
  color: color-mix(in srgb, var(--tinta) 65%, transparent);
}
.card-info-btn {
  background: none; border: 1px solid var(--borde); border-radius: 50%;
  width: 20px; height: 20px; font-size: 0.72rem; line-height: 1;
  color: var(--verde-oscuro); flex-shrink: 0; font-weight: 700;
}

.card-imagen { width: 100%; aspect-ratio: 1 / 1; display: flex; align-items: center; justify-content: center; }
/* multiply: el fondo blanco de las fotos JPG se funde con el gris de la tarjeta */
.card-imagen img, .card-imagen svg { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; border-radius: 10px; }

.card-audio-btn {
  background: color-mix(in srgb, var(--tinta) 78%, transparent);
  color: var(--fondo); border: none; border-radius: 999px;
  padding: 4px 10px; font-size: 0.72rem;
  display: flex; align-items: center; gap: 4px;
  align-self: flex-start;
}

.card-spec { font-size: 0.74rem; font-weight: 700; font-style: italic; color: var(--verde-oscuro); margin: 0; }
.card-desc { font-size: 0.8rem; color: color-mix(in srgb, var(--tinta) 68%, transparent); margin: 0; flex-grow: 1; }

.card-footer { display: flex; flex-direction: column; gap: 8px; }
.card-qty { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.card-precio {
  display: block;
  font-weight: 800; font-size: 1.15rem;
  background: var(--fondo); border: 1px solid var(--borde); border-radius: var(--radio-chico);
  padding: 10px; width: 100%; text-align: center;
}
.card-envio-gratis {
  font-size: 0.72rem; font-weight: 700; color: var(--verde-oscuro);
  background: color-mix(in srgb, var(--verde-claro) 55%, transparent);
  padding: 4px 12px; border-radius: 999px;
}

.grid-vacio {
  grid-column: 1 / -1; padding: 40px 20px; text-align: center;
  font-style: italic; color: color-mix(in srgb, var(--tinta) 55%, transparent);
}

/* ---------- 4. TEXTO INFORMATIVO ---------- */
.showroom-text {
  max-width: 900px; margin: 0 auto;
  padding: clamp(20px, 4vw, 40px) clamp(16px, 4vw, 48px) clamp(40px, 6vw, 70px);
}
.showroom-text h2 {
  font-weight: 500; font-style: italic;
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
  color: color-mix(in srgb, var(--tinta) 55%, transparent);
  margin: 0 0 18px;
}
.showroom-body p {
  font-style: italic;
  color: color-mix(in srgb, var(--tinta) 65%, transparent);
  font-size: 0.9rem;
}

/* ---------- 5. FOOTER ---------- */
.site-footer {
  background: var(--modulo);
  color: var(--tinta);
  padding: 20px clamp(16px, 4vw, 48px);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px;
  border-top: 1px solid var(--borde);
}
.footer-envios { margin: 0; font-size: 0.88rem; font-style: italic; font-weight: 500; }
.footer-links { display: flex; gap: 14px; }
.footer-links a { display: flex; color: var(--verde-oscuro); }
.footer-links a:hover { color: var(--acento); }

/* ---------- BOTÓN "AGREGAR AL CARRITO" (verde estilo WhatsApp) ---------- */
.btn-agregar {
  display: block;
  width: 100%;
  background: var(--verde-wa);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.78rem;
  line-height: 1.15;
  text-align: center;
  padding: 10px 10px;
  transition: filter 0.15s ease, transform 0.15s ease;
}
.btn-agregar:hover { filter: brightness(1.1); }
.btn-agregar:active { transform: scale(0.98); }
.btn-agregar-grande { width: auto; font-size: 1rem; padding: 13px 32px; margin: 4px 0; }

.info-precio { font-weight: 800; font-size: 1.6rem; margin: 4px 0 10px; }
.info-en-pedido { font-size: 0.85rem; font-style: italic; color: var(--verde-oscuro); margin: 8px 0 18px; }
.info-sin-stock {
  display: inline-block;
  font-weight: 700; font-size: 0.85rem; color: var(--fondo);
  background: color-mix(in srgb, var(--tinta) 70%, transparent);
  padding: 6px 16px; border-radius: 999px; margin: 4px 0 16px;
}

/* barra de avance del audio en la ficha */
.info-audio-barra { width: 90px; height: 4px; background: var(--borde); border-radius: 2px; overflow: hidden; }
.info-audio-barra span { display: block; height: 100%; width: 0; background: var(--verde-oscuro); }
.info-audio { margin: 4px 0 16px; }

/* texto de bienvenida: línea de envío gratis */
.bienvenida .bienvenida-envio { font-weight: 700; font-style: normal; color: var(--verde-oscuro); }

/* guía rápida de compra (pie de la página) */
.guia-titulo { font-weight: 800; font-size: 1rem; letter-spacing: 0.03em; margin: 0 0 6px; font-style: normal; }
.guia-seccion h4 { font-weight: 700; font-size: 0.92rem; letter-spacing: 0.02em; margin: 22px 0 6px; }
.guia-seccion ul { margin: 0; padding-left: 20px; }
.guia-seccion li {
  font-style: italic;
  color: color-mix(in srgb, var(--tinta) 70%, transparent);
  font-size: 0.9rem;
  margin: 3px 0;
}
.guia-seccion a { color: var(--verde-oscuro); font-weight: 600; text-decoration: underline; }