/* ============================================
   AudioLibros MX — Hoja de Estilos Principal
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --negro:     #0d0d0d;
  --oscuro:    #141414;
  --panel:     #1c1c1c;
  --borde:     #2a2a2a;
  --texto:     #e8e2d9;
  --texto-2:   #9e9589;
  --oro:       #c9a84c;
  --oro-claro: #e6c87a;
  --oro-dark:  #a07830;
  --acento:    #e05a2b;
  --verde:     #3db87a;
  --radio:     12px;
  --radio-lg:  20px;
  --sombra:    0 8px 32px rgba(0,0,0,0.5);
  --trans:     all 0.25s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--negro);
  color: var(--texto);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--oscuro); }
::-webkit-scrollbar-thumb { background: var(--oro-dark); border-radius: 3px; }

/* =====================
   HEADER / NAV
   ===================== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,13,13,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--borde);
  padding: 0 1.5rem;
}

.nav {
  max-width: 1280px;
  margin: 0 auto;
  height: 70px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--oro), var(--oro-dark));
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
}
.logo-text {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--oro-claro);
  line-height: 1;
}
.logo-sub {
  font-size: 0.6rem;
  color: var(--texto-2);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Búsqueda */
.buscador-wrap {
  flex: 1;
  max-width: 480px;
  position: relative;
}
.buscador-input {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: 50px;
  padding: 0.6rem 3rem 0.6rem 1.2rem;
  color: var(--texto);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  transition: var(--trans);
}
.buscador-input:focus {
  outline: none;
  border-color: var(--oro);
  background: var(--oscuro);
}
.buscador-input::placeholder { color: var(--texto-2); }
.buscador-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--texto-2);
  cursor: pointer;
  font-size: 1rem;
  transition: var(--trans);
}
.buscador-btn:hover { color: var(--oro); }

/* Resultados búsqueda */
.buscar-resultados {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  overflow: hidden;
  display: none;
  box-shadow: var(--sombra);
  z-index: 999;
}
.buscar-resultados.visible { display: block; }
.buscar-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: var(--trans);
  border-bottom: 1px solid var(--borde);
}
.buscar-item:last-child { border-bottom: none; }
.buscar-item:hover { background: var(--oscuro); }
.buscar-item-img {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--borde);
}
.buscar-item-titulo { font-size: 0.85rem; font-weight: 500; }
.buscar-item-autor { font-size: 0.75rem; color: var(--texto-2); }
.buscar-item-precio { font-size: 0.85rem; color: var(--oro); font-weight: 600; margin-left: auto; white-space: nowrap; }

/* Nav acciones */
.nav-acciones {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

.btn-carrito {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: 50px;
  padding: 0.55rem 1.1rem;
  color: var(--texto);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--trans);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}
.btn-carrito:hover {
  border-color: var(--oro);
  color: var(--oro);
}
.carrito-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--acento);
  color: #fff;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 700;
  display: grid;
  place-items: center;
  display: none;
}
.carrito-badge.visible { display: grid; }

/* Menu hamburguesa */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--texto);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.3rem;
}

/* =====================
   HERO
   ===================== */
.hero {
  background: linear-gradient(135deg, #0d0d0d 0%, #1a1208 50%, #0d0d0d 100%);
  padding: 5rem 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 50%, rgba(201,168,76,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(201,168,76,0.12);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: 50px;
  padding: 0.3rem 0.9rem;
  font-size: 0.8rem;
  color: var(--oro-claro);
  margin-bottom: 1.25rem;
}
.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}
.hero h1 em {
  font-style: italic;
  color: var(--oro-claro);
}
.hero-desc {
  font-size: 1.05rem;
  color: var(--texto-2);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 440px;
}
.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2.5rem;
}
.stat-item { text-align: center; }
.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--oro-claro);
}
.stat-lbl { font-size: 0.75rem; color: var(--texto-2); text-transform: uppercase; letter-spacing: 1px; }

/* Hero portadas flotantes */
.hero-visual {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-portada {
  position: absolute;
  width: 140px;
  height: 200px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  transition: transform 0.4s ease;
}
.hero-portada img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-portada:nth-child(1) { left: 10%;  top: 10%;  transform: rotate(-8deg); z-index: 1; }
.hero-portada:nth-child(2) { left: 28%;  top: 5%;   transform: rotate(3deg);  z-index: 3; width: 160px; height: 220px; }
.hero-portada:nth-child(3) { right: 20%; top: 15%;  transform: rotate(-4deg); z-index: 2; }
.hero-portada:nth-child(4) { left: 15%;  bottom: 10%; transform: rotate(6deg); z-index: 2; }
.hero-portada:nth-child(5) { right: 10%; bottom: 8%; transform: rotate(-10deg); z-index: 1; }
.hero-portada:hover { transform: rotate(0deg) scale(1.05) !important; z-index: 10; }

/* =====================
   BOTONES
   ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: 50px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  border: none;
  transition: var(--trans);
  white-space: nowrap;
}
.btn-oro {
  background: linear-gradient(135deg, var(--oro), var(--oro-dark));
  color: #0d0d0d;
}
.btn-oro:hover {
  background: linear-gradient(135deg, var(--oro-claro), var(--oro));
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,168,76,0.35);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--borde);
  color: var(--texto);
}
.btn-outline:hover {
  border-color: var(--oro);
  color: var(--oro);
  transform: translateY(-2px);
}
.btn-acento {
  background: var(--acento);
  color: #fff;
}
.btn-acento:hover {
  background: #c84820;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(224,90,43,0.35);
}
.btn-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--texto);
  border: 1px solid var(--borde);
}
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-sm { padding: 0.45rem 1rem; font-size: 0.82rem; }
.btn-block { width: 100%; justify-content: center; }

/* =====================
   SECCIONES
   ===================== */
.seccion {
  padding: 4rem 1.5rem;
  max-width: 1280px;
  margin: 0 auto;
}
.seccion-titulo {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1rem;
  flex-wrap: wrap;
}
.seccion-titulo h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}
.seccion-titulo h2 span { color: var(--oro-claro); }

/* =====================
   FILTROS
   ===================== */
.filtros-bar {
  background: var(--oscuro);
  border-bottom: 1px solid var(--borde);
  padding: 0 1.5rem;
  position: sticky;
  top: 70px;
  z-index: 100;
}
.filtros-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  overflow-x: auto;
  padding: 1rem 0;
  scrollbar-width: none;
}
.filtros-inner::-webkit-scrollbar { display: none; }

.filtro-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  border-radius: 50px;
  background: var(--panel);
  border: 1px solid var(--borde);
  color: var(--texto-2);
  font-size: 0.82rem;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--trans);
}
.filtro-chip:hover, .filtro-chip.activo {
  background: rgba(201,168,76,0.12);
  border-color: var(--oro);
  color: var(--oro-claro);
}

.orden-select {
  margin-left: auto;
  background: var(--panel);
  border: 1px solid var(--borde);
  color: var(--texto);
  border-radius: 50px;
  padding: 0.45rem 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
  cursor: pointer;
  flex-shrink: 0;
}
.orden-select:focus { outline: none; border-color: var(--oro); }

/* =====================
   GRID DE LIBROS
   ===================== */
.libros-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
}

.libro-card {
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: var(--radio-lg);
  overflow: hidden;
  transition: var(--trans);
  cursor: pointer;
  position: relative;
}
.libro-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,168,76,0.4);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}

.libro-portada {
  aspect-ratio: 3/4;
  overflow: hidden;
  position: relative;
  background: var(--borde);
}
.libro-portada img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.libro-card:hover .libro-portada img { transform: scale(1.06); }

.libro-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--acento);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.libro-badge-oro {
  background: linear-gradient(135deg, var(--oro), var(--oro-dark));
  color: #0d0d0d;
}

.libro-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 60%);
  opacity: 0;
  transition: var(--trans);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}
.libro-card:hover .libro-overlay { opacity: 1; }

.libro-info {
  padding: 1rem;
}
.libro-titulo {
  font-family: 'Playfair Display', serif;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.3rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.libro-autor {
  font-size: 0.78rem;
  color: var(--texto-2);
  margin-bottom: 0.5rem;
}
.libro-rating {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-bottom: 0.75rem;
}
.estrellas { color: var(--oro); font-size: 0.75rem; letter-spacing: 1px; }
.rating-num { font-size: 0.75rem; color: var(--texto-2); }

.libro-precios {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.libro-precio {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--oro-claro);
}
.libro-precio-original {
  font-size: 0.8rem;
  color: var(--texto-2);
  text-decoration: line-through;
}
.libro-duracion {
  font-size: 0.72rem;
  color: var(--texto-2);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.3rem;
}

/* Placeholder portada sin imagen */
.portada-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e1a14, #2a2210);
  color: var(--oro-dark);
  padding: 1rem;
  text-align: center;
  gap: 0.5rem;
}
.portada-placeholder .pp-icon { font-size: 2rem; }
.portada-placeholder .pp-titulo {
  font-family: 'Playfair Display', serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--oro-claro);
  line-height: 1.3;
}
.portada-placeholder .pp-autor { font-size: 0.68rem; color: var(--texto-2); }

/* Skeleton loader */
.skeleton {
  background: linear-gradient(90deg, var(--panel) 25%, var(--borde) 50%, var(--panel) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* =====================
   MODAL LIBRO
   ===================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 2000;
  display: none;
  place-items: center;
  padding: 1rem;
  backdrop-filter: blur(4px);
}
.modal-overlay.visible { display: grid; }

.modal {
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: var(--radio-lg);
  max-width: 820px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--borde);
  border: none;
  color: var(--texto);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: var(--trans);
  z-index: 10;
}
.modal-close:hover { background: var(--acento); }

.modal-body {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2rem;
  padding: 2rem;
}
.modal-portada {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 3/4;
  flex-shrink: 0;
}
.modal-portada img { width: 100%; height: 100%; object-fit: cover; }
.modal-info { display: flex; flex-direction: column; gap: 0.75rem; }
.modal-categoria {
  font-size: 0.75rem;
  color: var(--oro);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
}
.modal-titulo {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}
.modal-autor { color: var(--texto-2); font-size: 0.9rem; }
.modal-desc {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--texto-2);
  max-height: 120px;
  overflow-y: auto;
}
.modal-meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.modal-meta span {
  font-size: 0.78rem;
  background: var(--oscuro);
  padding: 0.3rem 0.7rem;
  border-radius: 50px;
  border: 1px solid var(--borde);
  color: var(--texto-2);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.modal-precio {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--oro-claro);
}
.modal-precio small {
  font-size: 1rem;
  color: var(--texto-2);
  text-decoration: line-through;
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
}
.modal-ctas { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* =====================
   CARRITO LATERAL
   ===================== */
.carrito-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 3000;
  display: none;
  backdrop-filter: blur(4px);
}
.carrito-overlay.visible { display: block; }

.carrito-panel {
  position: fixed;
  right: -440px;
  top: 0;
  width: min(440px, 100vw);
  height: 100vh;
  background: var(--panel);
  border-left: 1px solid var(--borde);
  z-index: 3001;
  display: flex;
  flex-direction: column;
  transition: right 0.35s cubic-bezier(0.4,0,0.2,1);
}
.carrito-panel.visible { right: 0; }

.carrito-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--borde);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.carrito-header h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
}
.carrito-cerrar {
  background: var(--borde);
  border: none;
  color: var(--texto);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: var(--trans);
}
.carrito-cerrar:hover { background: var(--acento); }

.carrito-items {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.carrito-item {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem;
  background: var(--oscuro);
  border-radius: var(--radio);
  border: 1px solid var(--borde);
}
.carrito-item-img {
  width: 60px;
  height: 80px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--borde);
}
.carrito-item-titulo {
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.25rem;
}
.carrito-item-autor { font-size: 0.75rem; color: var(--texto-2); }
.carrito-item-precio { font-size: 0.95rem; font-weight: 700; color: var(--oro-claro); margin-top: 0.4rem; }
.btn-eliminar {
  background: none;
  border: none;
  color: var(--texto-2);
  cursor: pointer;
  font-size: 1rem;
  padding: 0.25rem;
  transition: var(--trans);
  align-self: flex-start;
}
.btn-eliminar:hover { color: var(--acento); }

.carrito-vacio {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--texto-2);
  display: none;
}
.carrito-vacio.visible { display: block; }
.carrito-vacio .cv-icon { font-size: 3rem; margin-bottom: 1rem; }

.carrito-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--borde);
}
.carrito-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.carrito-total span { color: var(--texto-2); }
.carrito-total strong {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  color: var(--oro-claro);
}

/* =====================
   CHECKOUT / MODAL
   ===================== */
.checkout-modal {
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: var(--radio-lg);
  max-width: 520px;
  width: 100%;
  padding: 2rem;
  position: relative;
}
.checkout-modal h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
}

.form-grupo {
  margin-bottom: 1.25rem;
}
.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--texto-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.4rem;
}
.form-input {
  width: 100%;
  background: var(--oscuro);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 0.75rem 1rem;
  color: var(--texto);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  transition: var(--trans);
}
.form-input:focus {
  outline: none;
  border-color: var(--oro);
  background: #0d0d0d;
}
.form-input::placeholder { color: #4a4640; }

.pago-opciones {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.pago-opcion {
  padding: 0.75rem;
  background: var(--oscuro);
  border: 2px solid var(--borde);
  border-radius: var(--radio);
  cursor: pointer;
  transition: var(--trans);
  text-align: center;
  font-size: 0.82rem;
}
.pago-opcion:hover, .pago-opcion.activo {
  border-color: var(--oro);
  background: rgba(201,168,76,0.08);
  color: var(--oro-claro);
}
.pago-opcion .po-icon { font-size: 1.4rem; display: block; margin-bottom: 0.25rem; }

.resumen-orden {
  background: var(--oscuro);
  border-radius: var(--radio);
  padding: 1rem;
  margin-bottom: 1.25rem;
}
.resumen-fila {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 0.3rem 0;
  color: var(--texto-2);
}
.resumen-total {
  border-top: 1px solid var(--borde);
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  color: var(--texto);
  font-weight: 700;
  font-size: 1rem;
}

/* Confirmación */
.confirmacion {
  text-align: center;
  padding: 1rem 0;
}
.conf-icono { font-size: 3.5rem; margin-bottom: 1rem; }
.conf-titulo {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  color: var(--verde);
  margin-bottom: 0.5rem;
}
.conf-codigo {
  background: var(--oscuro);
  border: 1px dashed var(--oro);
  border-radius: var(--radio);
  padding: 0.75rem;
  font-family: monospace;
  font-size: 1.2rem;
  letter-spacing: 2px;
  color: var(--oro-claro);
  margin: 1rem 0;
}
.conf-desc { font-size: 0.85rem; color: var(--texto-2); line-height: 1.6; }

/* =====================
   TOAST / NOTIFICACIONES
   ===================== */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.toast {
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 0.85rem 1.2rem;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: var(--sombra);
  animation: slideIn 0.3s ease, fadeOut 0.4s ease 2.6s forwards;
  min-width: 260px;
}
.toast-verde { border-left: 3px solid var(--verde); }
.toast-oro   { border-left: 3px solid var(--oro); }
.toast-rojo  { border-left: 3px solid var(--acento); }
@keyframes slideIn  { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut  { from { opacity: 1; } to { opacity: 0; pointer-events: none; } }

/* =====================
   FOOTER
   ===================== */
.footer {
  background: var(--oscuro);
  border-top: 1px solid var(--borde);
  padding: 3rem 1.5rem 2rem;
  margin-top: 4rem;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
}
.footer-brand p {
  font-size: 0.85rem;
  color: var(--texto-2);
  line-height: 1.6;
  margin-top: 0.75rem;
  max-width: 260px;
}
.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--oro);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--texto-2);
  text-decoration: none;
  transition: var(--trans);
}
.footer-col ul li a:hover { color: var(--oro-claro); }
.footer-bottom {
  max-width: 1280px;
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--borde);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--texto-2);
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* =====================
   CARGANDO
   ===================== */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(201,168,76,0.2);
  border-top-color: var(--oro);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.cargando-libros {
  text-align: center;
  padding: 4rem;
  color: var(--texto-2);
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* =====================
   RESPONSIVE MÓVIL
   ===================== */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-visual { display: none; }
  .hero-desc { margin: 0 auto 2rem; }
  .hero-ctas { justify-content: center; }
  .hero-stats { justify-content: center; }

  .buscador-wrap { display: none; }
  .buscador-wrap.movil-visible {
    display: block;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    padding: 1rem;
    background: var(--oscuro);
    border-bottom: 1px solid var(--borde);
    max-width: 100%;
    z-index: 999;
  }

  .menu-toggle { display: block; }
  .nav-acciones .btn-outline { display: none; }

  .modal-body { grid-template-columns: 1fr; }
  .modal-portada { max-width: 160px; margin: 0 auto; }

  .libros-grid { grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); gap: 1rem; }

  .footer-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-col:not(:first-child) { display: none; }

  .pago-opciones { grid-template-columns: 1fr; }

  .toast-container { left: 1rem; right: 1rem; bottom: 1rem; }
  .toast { min-width: unset; }
}

@media (max-width: 480px) {
  .hero { padding: 3rem 1rem 2.5rem; }
  .libros-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .libro-info { padding: 0.75rem; }
  .libro-titulo { font-size: 0.82rem; }
}