/* ===========================================================
   SOSELIN.CL — REDISEÑO COMPLETO 2025
   Inspirado en Pernopolis.cl (Shopify Athens Theme)
   Colores institucionales: Rojo #CC0000 y Negro #0a0a0a
   =========================================================== */

/* === 1. VARIABLES & RESET === */
:root {
  --color-primary: #CC0000;
  --color-primary-dark: #990000;
  --color-primary-light: #E60000;
  --color-accent: #004FC7;
  --color-accent-light: #287DFF;
  --color-dark: #0a0a0a;
  --color-dark-2: #1a1a1a;
  --color-dark-3: #232323;
  --color-text: #555555;
  --color-text-light: #888888;
  --color-text-dark: #111111;
  --color-border: #dfdfdf;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f8f8;
  --color-bg-dark: #f0f0f0;
  --color-white: #ffffff;
  --color-star: #ffc700;
  --color-sale-bg: #f1cdcd;
  --color-success: #0b6cff;
  --font-body: 'Roboto', Arial, sans-serif;
  --font-heading: 'Roboto', Arial, sans-serif;
  --page-width: 146rem;
  --radius: 2px;
  --radius-sm: 4px;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-xl: 0 8px 40px rgba(0,0,0,0.12);
  --transition: all 0.25s ease;
  --grid-gap: 20px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 62.5%; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 1.5rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100%;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
input, button, textarea, select { font-family: inherit; font-size: inherit; }

.container { width: 100%; max-width: var(--page-width); margin: 0 auto; padding: 0 2rem; }

/* === 2. TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); color: var(--color-text-dark); font-weight: 500; }
h1 { font-size: 3.6rem; }
h2 { font-size: 2.8rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.6rem; }

/* === 3. BOTONES === */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 1.2rem 3rem; font-size: 1.5rem; font-weight: 500;
  border: 1px solid transparent; cursor: pointer; border-radius: var(--radius);
  transition: var(--transition); text-transform: none; line-height: 1;
  gap: 0.8rem; min-height: 4.4rem;
}
.btn-primary { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.btn-secondary { background: var(--color-dark); color: var(--color-white); }
.btn-secondary:hover { background: #222; }
.btn-outline { background: transparent; border: 1px solid var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); }
.btn-white { background: var(--color-white); color: var(--color-primary); }
.btn-white:hover { background: rgba(255,255,255,0.9); }
.btn-block { width: 100%; }
.btn-lg { padding: 1.4rem 4rem; font-size: 1.6rem; min-height: 5rem; }
.btn-sm { padding: 0.8rem 1.5rem; font-size: 1.3rem; min-height: 3.4rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* === 4. TOP BAR === */
.top-bar {
  background: var(--color-dark);
  color: rgba(255,255,255,0.85);
  font-size: 1.25rem;
  padding: 0.6rem 0;
  text-align: center;
  border-bottom: 2px solid var(--color-primary);
  letter-spacing: 0.3px;
}

/* === 5. HEADER === */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 1000;
}
.header-inner {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  max-width: var(--page-width); margin: 0 auto; gap: 2rem;
}
.logo { flex-shrink: 0; }
.logo img { display: block; height: 40px; width: auto; }

.search-bar { flex: 1; max-width: 50rem; position: relative; }
.search-bar input {
  width: 100%; padding: 0.8rem 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1.4rem; outline: none; transition: var(--transition);
  background: var(--color-bg-alt);
}
.search-bar input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(204,0,0,0.08);
  background: var(--color-white);
}
.search-bar button {
  position: absolute; right: 1px; top: 1px; bottom: 1px;
  padding: 0 1.5rem; background: transparent;
  color: var(--color-text-light); border: none; cursor: pointer; font-size: 1.6rem;
  transition: var(--transition);
}
.search-bar button:hover { color: var(--color-primary); }

.header-actions { display: flex; align-items: center; gap: 2rem; }
.header-action {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 1.3rem; color: var(--color-text-dark);
  cursor: pointer; transition: var(--transition);
}
.header-action:hover { color: var(--color-primary); }
.header-action .icon { font-size: 2rem; }
.header-action .label { font-size: 1.3rem; }
.cart-icon { position: relative; }
.cart-count {
  position: absolute; top: -8px; right: -10px;
  background: var(--color-primary); color: var(--color-white);
  font-size: 1rem; width: 1.8rem; height: 1.8rem;
  border-radius: 50%; display: flex; align-items: center;
  justify-content: center; font-weight: 700;
}

/* === 6. NAVEGACIÓN === */
.main-nav { background: var(--color-dark); border-bottom: 2px solid var(--color-primary); }
.main-nav .nav-inner {
  display: flex; align-items: center; justify-content: center;
  max-width: var(--page-width); margin: 0 auto; padding: 0 2rem;
}
.main-nav a {
  display: block; padding: 1.2rem 2rem;
  font-size: 1.4rem; font-weight: 500;
  color: rgba(255,255,255,0.85);
  transition: var(--transition); letter-spacing: 0.2px;
  position: relative;
}
.main-nav a::after {
  content: ''; display: block; position: absolute;
  bottom: 0; left: 2rem; right: 2rem; height: 2px;
  background: var(--color-primary); transform: scaleX(0);
  transition: transform 0.25s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after { transform: scaleX(1); }
.main-nav a:hover, .main-nav a.active { color: #ffffff; }

.hamburger {
  display: none; flex-direction: column; cursor: pointer;
  gap: 5px; background: none; border: none; padding: 0.5rem;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--color-text-dark); transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* === 7. HERO SLIDER === */
.hero-slider { position: relative; overflow: hidden; }
.slides-container { display: flex; transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.slide {
  min-width: 100%; display: flex; align-items: center;
  justify-content: center; padding: 8rem 2rem; min-height: 50rem;
  position: relative;
}
.slide-content { text-align: center; max-width: 65rem; position: relative; z-index: 2; }
.slide-content h2 {
  font-size: 4.2rem; font-weight: 900; color: var(--color-dark);
  margin-bottom: 1.5rem; line-height: 1.1; letter-spacing: -0.5px;
}
.slide-content p {
  font-size: 1.8rem; margin-bottom: 3rem; color: var(--color-text);
  line-height: 1.5;
}
.slide-bg-1 { background: linear-gradient(135deg, #f8f8f8 0%, #e8e8e8 50%, #f0f0f0 100%); }
.slide-bg-2 { background: linear-gradient(135deg, #fff5f5 0%, #fce8e8 50%, #fff0f0 100%); }
.slide-bg-3 { background: linear-gradient(135deg, #fafafa 0%, #e0e0e0 50%, #f5f5f5 100%); }

.slider-controls {
  position: absolute; bottom: 2.5rem; left: 50%;
  transform: translateX(-50%); display: flex; gap: 1.2rem;
}
.slider-dot {
  width: 1.2rem; height: 1.2rem; border-radius: 50%;
  background: rgba(0,0,0,0.15); cursor: pointer; border: none;
  transition: var(--transition); padding: 0;
}
.slider-dot.active { background: var(--color-primary); transform: scale(1.3); }
.slider-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: var(--color-white); border: 1px solid var(--color-border);
  width: 4.5rem; height: 4.5rem; border-radius: 50%; cursor: pointer;
  font-size: 2rem; display: flex; align-items: center; justify-content: center;
  transition: var(--transition); z-index: 5; box-shadow: var(--shadow);
}
.slider-btn:hover {
  background: var(--color-primary); color: var(--color-white);
  border-color: var(--color-primary); box-shadow: var(--shadow-lg);
}
.slider-prev { left: 2rem; }
.slider-next { right: 2rem; }

/* === 8. SECCIONES === */
.section { padding: 6rem 0; }
.section-title { text-align: center; margin-bottom: 4rem; }
.section-title h2 {
  font-size: 3rem; font-weight: 600; color: var(--color-dark);
  margin-bottom: 1rem; position: relative; display: inline-block;
}
.section-title h2::after {
  content: ''; display: block; width: 60px; height: 3px;
  background: var(--color-primary); margin: 1.2rem auto 0;
  border-radius: 2px;
}
.section-title p { font-size: 1.6rem; color: var(--color-text-light); }

/* === 9. CATEGORÍAS === */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(26rem, 1fr));
  gap: var(--grid-gap);
}
.category-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 3.5rem 2.5rem; text-align: center;
  transition: var(--transition); cursor: pointer;
}
.category-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
  transform: translateY(-3px);
}
.category-icon { font-size: 4.5rem; margin-bottom: 1.5rem; display: block; }
.category-card h3 {
  font-size: 1.8rem; font-weight: 600;
  color: var(--color-text-dark); margin-bottom: 0.8rem;
}
.category-card p { font-size: 1.3rem; color: var(--color-text-light); }

/* === 10. PRODUCTOS === */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(22rem, 1fr));
  gap: var(--grid-gap);
}
.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden; transition: var(--transition);
  position: relative; display: flex; flex-direction: column;
}
.product-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.product-image {
  position: relative; padding-top: 100%;
  background: var(--color-bg-alt); overflow: hidden;
}
.product-image img {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%; object-fit: contain;
  padding: 2rem; transition: transform 0.4s ease;
}
.product-card:hover .product-image img { transform: scale(1.08); }
.product-badge {
  position: absolute; top: 1rem; left: 1rem;
  padding: 0.3rem 1rem; font-size: 1.1rem; font-weight: 700;
  text-transform: uppercase; border-radius: var(--radius);
  z-index: 2; letter-spacing: 0.5px;
}
.badge-sale { background: var(--color-primary); color: var(--color-white); }
.badge-new { background: var(--color-dark-3); color: var(--color-white); }
.product-info { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.product-vendor {
  font-size: 1.2rem; margin-bottom: 0.3rem;
  color: var(--color-text-light); text-transform: uppercase;
  letter-spacing: 0.5px;
}
.product-title {
  font-size: 1.5rem; font-weight: 500;
  color: var(--color-text-dark); margin-bottom: 0.8rem; line-height: 1.3;
}
.product-rating { display: flex; align-items: center; gap: 0.2rem; margin-bottom: 0.8rem; }
.star { color: var(--color-star); font-size: 1.2rem; }
.product-price {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 1.5rem; margin-top: auto;
}
.price-current { font-size: 1.8rem; font-weight: 700; color: var(--color-primary); }
.price-compare {
  font-size: 1.4rem; text-decoration: line-through;
  color: var(--color-text-light);
}
.product-card .btn { width: 100%; }

/* === 11. BANNER === */
.banner-section {
  background: linear-gradient(135deg, #CC0000 0%, #0a0a0a 100%);
  color: var(--color-white); padding: 6rem 2rem; text-align: center;
}
.banner-section h2 {
  font-size: 3.2rem; font-weight: 700; margin-bottom: 1rem;
  color: var(--color-white);
}
.banner-section p { font-size: 1.8rem; margin-bottom: 2.5rem; opacity: 0.9; }
.banner-section .btn {
  background: var(--color-white); color: var(--color-primary);
  font-weight: 700;
}
.banner-section .btn:hover {
  background: rgba(255,255,255,0.9);
  transform: translateY(-2px);
}

/* === 12. MARCAS === */
.brands-grid {
  display: flex; align-items: center; justify-content: center;
  gap: 4rem; flex-wrap: wrap; padding: 2rem 0;
}
.brand-item {
  font-size: 1.8rem; font-weight: 700;
  opacity: 0.35; letter-spacing: 1.5px; text-transform: uppercase;
  transition: var(--transition); color: var(--color-dark);
  padding: 0.5rem 1rem; border-radius: var(--radius);
}
.brand-item:hover {
  opacity: 1; color: var(--color-primary);
  background: rgba(204,0,0,0.04);
}

/* === 13. NEWSLETTER === */
.newsletter {
  background: var(--color-bg-alt);
  padding: 5rem 2rem; text-align: center;
  border-top: 3px solid var(--color-primary);
  border-bottom: 1px solid var(--color-border);
}
.newsletter h3 {
  font-size: 2.4rem; font-weight: 600;
  color: var(--color-text-dark); margin-bottom: 0.8rem;
}
.newsletter p { margin-bottom: 2rem; color: var(--color-text-light); }
.newsletter-form {
  display: flex; max-width: 50rem; margin: 0 auto;
}
.newsletter-form input {
  flex: 1; padding: 1.2rem 1.5rem;
  border: 1px solid var(--color-border);
  border-right: none; border-radius: var(--radius) 0 0 var(--radius);
  font-size: 1.4rem; outline: none; transition: var(--transition);
}
.newsletter-form input:focus { border-color: var(--color-primary); }
.newsletter-form button {
  padding: 1.2rem 2.5rem;
  background: var(--color-primary); color: var(--color-white);
  border: none; border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer; font-weight: 600; font-size: 1.4rem;
  transition: var(--transition); white-space: nowrap;
}
.newsletter-form button:hover { background: var(--color-primary-dark); }

/* === 14. FOOTER === */
.site-footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 5rem 0 0;
  border-top: 3px solid var(--color-primary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 4rem; max-width: var(--page-width);
  margin: 0 auto; padding: 0 2rem;
}
.footer-col h4 {
  font-size: 1.6rem; font-weight: 600;
  margin-bottom: 1.5rem; color: #fff;
  position: relative; padding-bottom: 0.8rem;
}
.footer-col h4::after {
  content: ''; display: block; width: 30px; height: 2px;
  background: var(--color-primary); position: absolute; bottom: 0; left: 0;
}
.footer-col p, .footer-col li {
  font-size: 1.3rem; color: rgba(255,255,255,0.6);
  line-height: 2;
}
.footer-col ul li { margin-bottom: 0.3rem; }
.footer-col ul li a { color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--color-primary); }

.footer-social { display: flex; gap: 1rem; margin-top: 1.5rem; }
.footer-social a {
  display: flex; align-items: center; justify-content: center;
  width: 3.6rem; height: 3.6rem; border-radius: 50%;
  background: rgba(255,255,255,0.08);
  font-size: 1.4rem; transition: var(--transition);
  color: rgba(255,255,255,0.6);
}
.footer-social a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 4rem; padding: 2rem;
  text-align: center; font-size: 1.3rem;
  color: rgba(255,255,255,0.4);
}

/* === 15. BREADCRUMB === */
.breadcrumb { padding: 1.5rem 0; font-size: 1.3rem; display: none; }
.breadcrumb a { color: var(--color-primary); }
.breadcrumb a:hover { text-decoration: underline; }
@media (min-width: 990px) { .breadcrumb { display: block; } }

/* === 16. PAGINACIÓN === */
.pagination {
  display: flex; justify-content: center; gap: 0.5rem;
  margin-top: 4rem;
}
.pagination a, .pagination span {
  display: flex; align-items: center; justify-content: center;
  width: 3.6rem; height: 3.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius); font-size: 1.4rem;
  transition: var(--transition);
}
.pagination a:hover,
.pagination .active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* === 17. CARRITO DRAWER === */
.cart-drawer {
  position: fixed; top: 0; right: 0; height: 100vh;
  width: 85vw; max-width: 40rem;
  background: var(--color-white);
  box-shadow: -4px 0 30px rgba(0,0,0,0.12);
  z-index: 2000;
  transform: translateX(105%);
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  padding: 2rem;
  display: flex; flex-direction: column;
}
.cart-drawer.open { transform: translateX(0); }
.cart-drawer-header {
  display: flex; justify-content: space-between;
  align-items: center; padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}
.cart-drawer-header h3 { font-size: 1.8rem; color: var(--color-text-dark); }
.cart-close {
  background: none; border: none; font-size: 2.4rem;
  cursor: pointer; color: var(--color-text); padding: 0.5rem;
  transition: var(--transition);
}
.cart-close:hover { color: var(--color-primary); }
.cart-drawer-items { flex: 1; overflow-y: auto; padding: 2rem 0; }
.cart-drawer-empty { text-align: center; padding: 4rem 0; color: var(--color-text-light); }
.cart-drawer-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
}
.cart-total {
  display: flex; justify-content: space-between;
  font-size: 1.8rem; font-weight: 700;
  color: var(--color-text-dark); margin-bottom: 1.5rem;
}
.cart-overlay {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 1999; opacity: 0; pointer-events: none;
  transition: opacity 0.35s ease;
}
.cart-overlay.open { opacity: 1; pointer-events: all; }

/* === 18. DETALLE PRODUCTO === */
.product-detail {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; padding: 4rem 0;
}
.product-gallery .main-image {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 3rem; display: flex;
  align-items: center; justify-content: center;
  min-height: 40rem;
}
.product-gallery .main-image img { max-height: 35rem; object-fit: contain; }
.product-detail-info h1 {
  font-size: 2.8rem; font-weight: 600;
  color: var(--color-text-dark); margin-bottom: 1rem;
}
.product-detail-info .vendor {
  font-size: 1.4rem; margin-bottom: 1rem;
  color: var(--color-text-light); text-transform: uppercase;
  letter-spacing: 0.5px;
}
.product-detail-info .description { margin: 2rem 0; line-height: 1.8; }
.product-detail-info .actions { display: flex; gap: 1.5rem; margin-top: 2rem; flex-wrap: wrap; }

/* === 19. CONTACTO === */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: start;
}
.contact-info h3 {
  font-size: 2rem; color: var(--color-text-dark);
  margin-bottom: 1.5rem;
}
.contact-info p {
  margin-bottom: 1rem; display: flex; align-items: center;
  gap: 1rem; font-size: 1.5rem;
}
.contact-info p strong { color: var(--color-text-dark); }
.contact-form label {
  display: block; margin-bottom: 0.5rem;
  font-weight: 600; color: var(--color-text-dark); font-size: 1.3rem;
}
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%; padding: 1rem 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius); font-size: 1.4rem;
  margin-bottom: 1.5rem; outline: none;
  transition: var(--transition); background: var(--color-white);
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(204,0,0,0.1);
}
.contact-form textarea { min-height: 15rem; resize: vertical; }

/* === 20. ALERTAS === */
.alert {
  padding: 1.5rem 2rem; border-radius: var(--radius);
  margin-bottom: 2rem; font-size: 1.4rem;
  display: flex; align-items: center; gap: 1rem;
}
.alert-success {
  background: #e8f5e9; color: #2e7d32;
  border: 1px solid #c8e6c9;
}
.alert-error {
  background: #ffebee; color: #c62828;
  border: 1px solid #ffcdd2;
}
.alert ul { margin: 0; padding-left: 2rem; }
.alert ul li { margin-bottom: 0.3rem; }

/* === 21. RESPONSIVE === */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .main-nav {
    display: none;
    position: absolute; top: 100%; left: 0; width: 100%;
    background: var(--color-dark);
    border-bottom: 2px solid var(--color-primary);
    box-shadow: var(--shadow-lg); z-index: 999;
  }
  .main-nav.open { display: block; }
  .main-nav .nav-inner { flex-direction: column; padding: 0; }
  .main-nav a {
    padding: 1.2rem 2rem; width: 100%;
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }
  .main-nav a::after { display: none; }

  .header-inner { flex-wrap: wrap; padding: 1rem; }
  .search-bar { order: 3; max-width: 100%; flex: 0 0 100%; margin-top: 0.8rem; }
  .logo img { height: 30px !important; }
  .header-actions { gap: 1.5rem; }
  .header-action .label { display: none; }

  .slide { min-height: 35rem; padding: 4rem 2rem; }
  .slide-content h2 { font-size: 2.8rem; }
  .slide-content p { font-size: 1.6rem; }
  .slider-btn { display: none; }

  .section { padding: 4rem 0; }
  .section-title h2 { font-size: 2.4rem; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
  .banner-section { padding: 4rem 2rem; }
  .banner-section h2 { font-size: 2.4rem; }

  .product-detail { grid-template-columns: 1fr; gap: 2rem; padding: 2rem 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 480px) {
  .categories-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
  .newsletter-form input {
    border-right: 1px solid var(--color-border);
    border-radius: var(--radius); margin-bottom: 1rem;
  }
  .newsletter-form button { border-radius: var(--radius); }
  .slide { min-height: 30rem; padding: 3rem 2rem; }
  .slide-content h2 { font-size: 2.2rem; }
  .slide-content p { font-size: 1.4rem; }
  h1 { font-size: 2.4rem; }
  h2 { font-size: 2rem; }
  .product-card .product-title { font-size: 1.3rem; }
  .price-current { font-size: 1.5rem; }
}

/* === 22. UTILIDADES === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mt-4 { margin-top: 4rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mb-4 { margin-bottom: 4rem; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 1rem; }
.gap-2 { gap: 2rem; }

/* === 23. TOAST NOTIFICATION === */
.toast {
  position: fixed; bottom: 2rem; right: 2rem;
  background: var(--color-dark); color: var(--color-white);
  padding: 1.5rem 2rem; border-radius: var(--radius);
  font-size: 1.4rem; z-index: 9999;
  transform: translateY(120%); opacity: 0;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  box-shadow: var(--shadow-xl);
  max-width: 35rem;
  border-left: 3px solid var(--color-primary);
}
.toast.show { transform: translateY(0); opacity: 1; }

/* === 24. WHATSAPP FIXED === */
.whatsapp-btn {
  position: fixed; bottom: 2rem; left: 2rem;
  background: #25D366; color: var(--color-white);
  width: 5.5rem; height: 5.5rem; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.8rem; box-shadow: 0 4px 16px rgba(37,211,102,0.35);
  z-index: 999; transition: var(--transition);
  border: none; cursor: pointer;
}
.whatsapp-btn:hover { transform: scale(1.1); box-shadow: 0 6px 24px rgba(37,211,102,0.5); }

/* === FIN DEL CSS === */