/* ==========================================================================
   PORTAFOLIO DE ARTE & TIENDA - DIEGO BURGA ARTISTA VISUAL
   Estilos Premium (Vainilla CSS) - Paleta Dorado, Marfil, Negro Carbón
   ========================================================================== */

/* Importación de tipografías desde Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

/* Variables de Diseño (Tokens) */
:root {
  --color-carbon: #1A1A1A;
  --color-dark-gray: #3B3B3B;
  --color-gold: #C8A060;
  --color-gold-hover: #b0894b;
  --color-beige-light: #E7DFCF;
  --color-ivory: #F7F5F1;
  --color-paper-warm: #FBFAF7;
  --color-white: #FFFFFF;
  
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
  
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.2s ease-in-out;
  
  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.05);
  --shadow-medium: 0 10px 30px rgba(26, 26, 26, 0.08);
  --shadow-premium: 0 20px 50px rgba(26, 26, 26, 0.12);
  
  --header-height: 85px;
}

/* Reset y Estilos Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at 18% 10%, rgba(200, 160, 96, 0.16), transparent 28%),
    radial-gradient(circle at 82% 6%, rgba(26, 26, 26, 0.08), transparent 24%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.68), rgba(247, 245, 241, 0.9)),
    var(--color-ivory);
  color: var(--color-carbon);
  line-height: 1.6;
  overflow-x: hidden;
  min-width: 320px;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(rgba(26, 26, 26, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 26, 26, 0.028) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.7), rgba(0,0,0,0.2));
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.7), rgba(0,0,0,0.2));
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    linear-gradient(110deg, transparent 0 18%, rgba(200, 160, 96, 0.08) 18.2% 18.7%, transparent 18.9% 100%),
    linear-gradient(28deg, transparent 0 69%, rgba(26, 26, 26, 0.045) 69.2% 69.6%, transparent 69.8% 100%);
}

.site-intro {
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: grid;
  place-items: center;
  pointer-events: none;
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.82), rgba(247, 245, 241, 0.58) 46%, rgba(26, 26, 26, 0.08));
  backdrop-filter: blur(12px);
  animation: introLayerExit 1.75s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.site-intro-panel {
  width: min(420px, 72vw);
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(200, 160, 96, 0.35);
  box-shadow:
    0 28px 80px rgba(26, 26, 26, 0.18),
    inset 0 0 0 10px rgba(255, 255, 255, 0.36);
  animation: introLogoRise 1.35s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.site-intro-panel img {
  width: 76%;
  max-height: 76%;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 12px 22px rgba(26, 26, 26, 0.18));
}

@keyframes introLayerExit {
  0%, 58% {
    opacity: 1;
    visibility: visible;
  }
  100% {
    opacity: 0;
    visibility: hidden;
  }
}

@keyframes introLogoRise {
  0% {
    opacity: 0;
    transform: translateY(14px) scale(0.92);
  }
  45% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-10px) scale(1.04);
  }
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0.5px;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

button, input, textarea {
  font-family: inherit;
}

button, a {
  -webkit-tap-highlight-color: transparent;
}

/* Ocultar scroll cuando el modal está abierto */
.modal-open {
  overflow: hidden;
}

/* ==========================================================================
   NAVEGACIÓN (HEADER)
   ========================================================================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(200, 160, 96, 0.2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 max(5%, env(safe-area-inset-left)) 0 max(5%, env(safe-area-inset-right));
  z-index: 1000;
  transition: var(--transition-smooth);
}

header.scrolled {
  height: 75px;
  background-color: rgba(26, 26, 26, 0.98);
  border-bottom: 1px solid rgba(200, 160, 96, 0.4);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 17px;
  min-width: 0;
}

.logo-img-wrapper {
  width: 64px;
  height: 64px;
  flex: 0 0 64px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 35% 28%, rgba(255, 255, 255, 1), rgba(247, 245, 241, 0.94));
  border: 1px solid rgba(200, 160, 96, 0.45);
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.28),
    inset 0 0 0 4px rgba(255, 255, 255, 0.75);
  overflow: hidden;
  position: relative;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.logo-img-wrapper::after {
  content: '';
  position: absolute;
  inset: -34%;
  background: conic-gradient(from 0deg, transparent, rgba(200, 160, 96, 0.28), transparent 32%);
  animation: logoHaloSpin 7s linear infinite;
  opacity: 0.74;
}

.logo-img-wrapper a {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  position: relative;
  z-index: 1;
}

.logo-img-wrapper:hover {
  transform: translateY(-1px) scale(1.04);
  box-shadow:
    0 10px 28px rgba(0, 0, 0, 0.34),
    0 0 22px rgba(200, 160, 96, 0.24),
    inset 0 0 0 4px rgba(255, 255, 255, 0.82);
}

.logo-img-wrapper img {
  width: 84%;
  height: 84%;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.18));
}

@keyframes logoHaloSpin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-intro,
  .site-intro-panel,
  .logo-img-wrapper::after {
    animation: none;
  }

  .site-intro {
    display: none;
  }
}

.logo-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.logo-title {
  font-family: var(--font-serif);
  color: var(--color-white);
  font-size: 1.4rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 400;
  line-height: 1.1;
  white-space: nowrap;
}

.logo-subtitle {
  color: var(--color-gold);
  font-size: 0.75rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 500;
  margin-top: 2px;
  white-space: nowrap;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 30px;
  align-items: center;
}

nav ul li {
  position: relative;
}

nav ul li a {
  color: var(--color-beige-light);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 500;
  padding: 10px 0;
}

nav ul li a:hover,
nav ul li a.active {
  color: var(--color-gold);
}

/* Indicador de pestaña activa */
nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: var(--transition-fast);
}

nav ul li a:hover::after,
nav ul li a.active::after {
  width: 100%;
}

/* Menú Desplegable (Dropdown de Galería) */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background-color: var(--color-carbon);
  border: 1px solid rgba(200, 160, 96, 0.3);
  box-shadow: var(--shadow-premium);
  min-width: 160px;
  border-radius: 2px;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  padding: 10px 0;
  z-index: 1010;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
  padding: 10px 20px;
  font-size: 0.85rem;
  width: 100%;
  text-align: center;
  transition: var(--transition-fast);
}

.dropdown-menu a::after {
  display: none;
}

.dropdown-menu a:hover {
  background-color: var(--color-dark-gray);
  color: var(--color-gold);
}

/* Botón Carrito en Header */
.cart-header-btn {
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.25rem;
  cursor: pointer;
  position: relative;
  padding: 8px;
  transition: var(--transition-fast);
  min-width: 44px;
  min-height: 44px;
}

.cart-header-btn:hover {
  color: var(--color-gold);
  transform: scale(1.05);
}

.cart-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background-color: var(--color-gold);
  color: var(--color-carbon);
  font-size: 0.7rem;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 2px solid var(--color-carbon);
}

/* Menú hamburguesa móvil */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
}

/* ==========================================================================
   ESTRUCTURA DE SECCIONES
   ========================================================================== */
main {
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

.section {
  display: none;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  padding: 80px max(8%, env(safe-area-inset-left)) 80px max(8%, env(safe-area-inset-right));
  background-color: rgba(251, 250, 247, 0.58);
  backdrop-filter: blur(1.5px);
}

.section.active {
  display: block;
  opacity: 1;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-title {
  font-size: 3rem;
  color: var(--color-carbon);
  position: relative;
  display: inline-block;
  padding-bottom: 15px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 35%;
  width: 30%;
  height: 1.5px;
  background-color: var(--color-gold);
}

.section-subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--color-dark-gray);
  margin-top: 10px;
}

/* ==========================================================================
   SECCIÓN DE INICIO (HOME)
   ========================================================================== */
.hero-section {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
  padding: 40px 0;
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-tag {
  color: var(--color-gold);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  font-weight: 600;
  margin-bottom: 15px;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.1;
  color: var(--color-carbon);
  margin-bottom: 25px;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--color-dark-gray);
  margin-bottom: 30px;
}

.hero-bio p {
  margin-bottom: 15px;
}

.hero-bio strong {
  color: var(--color-carbon);
  font-weight: 600;
}

.hero-buttons {
  display: flex;
  gap: 20px;
}

.hero-image-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-wrapper {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 4/5;
  border-radius: 2px;
  overflow: hidden;
  box-shadow: var(--shadow-premium);
  position: relative;
  z-index: 2;
  border: 1px solid rgba(200, 160, 96, 0.3);
  background-color: var(--color-beige-light);
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.hero-image-wrapper:hover img {
  transform: scale(1.03);
}

.hero-image-deco {
  position: absolute;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 4/5;
  border: 1px solid var(--color-gold);
  top: 15px;
  left: 15px;
  z-index: 1;
}

/* Elementos de Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 30px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: 1px;
  transition: var(--transition-smooth);
  cursor: pointer;
  gap: 10px;
  min-height: 44px;
  text-align: center;
  line-height: 1.25;
}

.btn-primary {
  background-color: var(--color-carbon);
  color: var(--color-white);
  border: 1px solid var(--color-carbon);
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--color-carbon);
  border-color: var(--color-carbon);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-carbon);
  border: 1px solid var(--color-gold);
}

.btn-secondary:hover {
  background-color: var(--color-gold);
  color: var(--color-carbon);
}

.btn-whatsapp-hero {
  background-color: #25D366;
  color: white;
  border: 1px solid #25D366;
}

.btn-whatsapp-hero:hover {
  background-color: transparent;
  color: #25D366;
}

/* Obras Destacadas en Home */
.featured-works {
  margin-top: 80px;
  border-top: 1px solid var(--color-beige-light);
  padding-top: 60px;
  position: relative;
}

.featured-works::before {
  content: '';
  position: absolute;
  inset: 26px -4% auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(200, 160, 96, 0.55), transparent);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

/* ==========================================================================
   SECCIÓN DE GALERÍA (PINTURAS Y DIBUJOS)
   ========================================================================== */
.gallery-layout {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.gallery-filters {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 20px;
}

.gallery-filters-expanded {
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.filter-btn {
  background-color: var(--color-white);
  border: 1px solid var(--color-beige-light);
  color: var(--color-dark-gray);
  padding: 8px 25px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  min-height: 44px;
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--color-carbon);
  color: var(--color-white);
  border-color: var(--color-carbon);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 40px;
}

/* Tarjeta de Obra */
.work-card {
  background-color: var(--color-white);
  border: 1px solid rgba(231, 223, 207, 0.6);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.work-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-medium);
  border-color: var(--color-gold);
}

.work-img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  background-color: #EFEFEF;
  overflow: hidden;
  cursor: pointer;
}

.work-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.work-card:hover .work-img-wrapper img {
  transform: scale(1.05);
}

.work-status-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  padding: 4px 12px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  border-radius: 1px;
  z-index: 10;
}

.status-disponible {
  background-color: rgba(200, 160, 96, 0.9);
  color: var(--color-white);
}

.status-vendido {
  background-color: rgba(120, 120, 120, 0.8);
  color: var(--color-white);
}

.work-info {
  padding: 25px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.work-category {
  color: var(--color-gold);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  margin-bottom: 8px;
}

.work-title {
  font-size: 1.5rem;
  color: var(--color-carbon);
  margin-bottom: 5px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.work-title:hover {
  color: var(--color-gold);
}

.work-meta {
  font-size: 0.85rem;
  color: var(--color-dark-gray);
  font-style: italic;
  margin-bottom: 15px;
}

.work-price-buy {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 15px;
  border-top: 1px solid rgba(231, 223, 207, 0.5);
}

.work-price {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-carbon);
}

.btn-add-cart {
  background: none;
  border: 1px solid var(--color-carbon);
  color: var(--color-carbon);
  padding: 6px 12px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  min-height: 40px;
}

.btn-add-cart:hover {
  background-color: var(--color-carbon);
  color: var(--color-white);
}

.btn-sold-out {
  background-color: transparent;
  border: 1px solid #CCCCCC;
  color: #999999;
  padding: 6px 12px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  cursor: not-allowed;
}

/* Mensaje de galería vacía */
.empty-gallery {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
  color: var(--color-dark-gray);
  font-family: var(--font-serif);
  font-size: 1.5rem;
}

/* ==========================================================================
   CARRITO DE COMPRAS (SLIDE-IN SIDEBAR)
   ========================================================================== */
.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(26, 26, 26, 0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.cart-overlay.active {
  opacity: 1;
  visibility: visible;
}

.cart-sidebar {
  position: fixed;
  top: 0;
  right: -450px;
  width: 100%;
  max-width: 450px;
  height: 100%;
  height: 100dvh;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  background-color: var(--color-white);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.15);
  z-index: 2010;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.cart-overlay.active .cart-sidebar {
  right: 0;
}

.cart-header {
  flex: 0 0 auto;
  padding: max(25px, env(safe-area-inset-top)) 30px 25px;
  border-bottom: 1px solid var(--color-beige-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-header h2 {
  font-size: 1.6rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.cart-close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-dark-gray);
  transition: var(--transition-fast);
  min-width: 44px;
  min-height: 44px;
}

.cart-close-btn:hover {
  color: var(--color-gold);
}

.cart-items-list {
  flex: 0 0 auto;
  overflow: visible;
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.cart-empty-message {
  text-align: center;
  color: var(--color-dark-gray);
  margin-top: 40px;
  font-family: var(--font-serif);
  font-size: 1.25rem;
}

.cart-item {
  display: flex;
  gap: 15px;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(231, 223, 207, 0.4);
}

.cart-item-img {
  width: 70px;
  height: 70px;
  object-fit: cover;
  border-radius: 1px;
  background-color: #EFEFEF;
}

.cart-item-details {
  flex-grow: 1;
}

.cart-item-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-carbon);
}

.cart-item-meta {
  font-size: 0.75rem;
  color: var(--color-dark-gray);
  margin-top: 2px;
}

.cart-item-price {
  font-size: 0.95rem;
  font-weight: 600;
  margin-top: 5px;
}

.cart-item-remove {
  background: none;
  border: none;
  color: #CC3333;
  cursor: pointer;
  font-size: 0.8rem;
  padding: 5px;
  transition: var(--transition-fast);
}

.cart-item-remove:hover {
  transform: scale(1.1);
}

.cart-footer {
  flex: 0 0 auto;
  padding: 30px 30px max(30px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--color-beige-light);
  background-color: var(--color-ivory);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
}

.cart-total-label {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.cart-total-value {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--color-carbon);
}

.cart-checkout-actions {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.checkout-contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px;
  border: 1px solid rgba(231, 223, 207, 0.9);
  background-color: rgba(255, 255, 255, 0.72);
}

.checkout-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.checkout-contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--color-carbon);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.7px;
  text-transform: uppercase;
}

.checkout-contact-form input,
.checkout-contact-form textarea {
  width: 100%;
  border: 1px solid var(--color-beige-light);
  background-color: var(--color-white);
  color: var(--color-carbon);
  font: inherit;
  font-size: 0.9rem;
  letter-spacing: 0;
  line-height: 1.35;
  padding: 10px 12px;
  text-transform: none;
}

.checkout-contact-form textarea {
  min-height: 86px;
  resize: vertical;
}

.checkout-contact-form input:focus,
.checkout-contact-form textarea:focus {
  border-color: var(--color-gold);
  outline: 2px solid rgba(200, 160, 96, 0.2);
}

/* Contenedor del Botón de PayPal */
#paypal-button-container {
  width: 100%;
  min-height: 48px;
  overflow: visible;
}

#paypal-button-container iframe {
  max-width: 100%;
}

.btn-whatsapp-cart {
  background-color: #25D366;
  color: white;
  border: 1px solid #25D366;
  width: 100%;
}

.btn-whatsapp-cart:hover {
  background-color: #1ebe57;
  border-color: #1ebe57;
}

/* ==========================================================================
   MODAL DE DETALLE (LIGHTBOX)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  min-height: 100dvh;
  background-color: rgba(26, 26, 26, 0.8);
  backdrop-filter: blur(5px);
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: var(--transition-smooth);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: max(20px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.modal-wrapper {
  background-color: var(--color-white);
  width: 100%;
  max-width: 950px;
  max-height: 90vh;
  border-radius: 2px;
  overflow: hidden;
  box-shadow: var(--shadow-premium);
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  transition: var(--transition-smooth);
  transform: translateY(30px);
}

.modal-overlay.active .modal-wrapper {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background-color: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--color-beige-light);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 10;
  transition: var(--transition-fast);
  color: var(--color-carbon);
  min-width: 44px;
  min-height: 44px;
}

.modal-close-btn:hover {
  background-color: var(--color-carbon);
  color: var(--color-white);
  border-color: var(--color-carbon);
}

.modal-image-panel {
  background-color: #1A1A1A;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.modal-image-panel img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  max-height: 75vh;
}

.modal-info-panel {
  padding: 40px;
  overflow-y: auto;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-category {
  color: var(--color-gold);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  margin-bottom: 10px;
}

.modal-title {
  font-size: 2.2rem;
  color: var(--color-carbon);
  line-height: 1.2;
  margin-bottom: 5px;
}

.modal-technique {
  font-size: 0.95rem;
  color: var(--color-dark-gray);
  font-style: italic;
  margin-bottom: 25px;
}

.modal-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
  padding: 15px 0;
  border-top: 1px solid rgba(231, 223, 207, 0.6);
  border-bottom: 1px solid rgba(231, 223, 207, 0.6);
}

.detail-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: #888888;
  letter-spacing: 1px;
}

.detail-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-carbon);
  margin-top: 3px;
}

.modal-description {
  margin-bottom: 35px;
}

.modal-description h4 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--color-carbon);
}

.modal-description p {
  font-size: 0.95rem;
  color: var(--color-dark-gray);
  line-height: 1.6;
}

.modal-buy-section {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.modal-price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-price {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-carbon);
}

.modal-status {
  padding: 5px 15px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  border-radius: 1px;
}

/* ==========================================================================
   PAGINAS SEO / SERVICIOS / FAQ
   ========================================================================== */
.content-page {
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
  background-color: rgba(251, 250, 247, 0.64);
}

.page-hero {
  padding: 92px max(8%, env(safe-area-inset-left)) 68px max(8%, env(safe-area-inset-right));
  max-width: 1180px;
  margin: 0 auto;
}

.page-hero.compact {
  padding-bottom: 44px;
}

.page-hero h1 {
  max-width: 860px;
  font-size: 3.35rem;
  line-height: 1.06;
  margin-bottom: 22px;
  color: var(--color-carbon);
}

.page-hero p {
  max-width: 780px;
  font-size: 1.08rem;
  color: var(--color-dark-gray);
  margin-bottom: 30px;
}

.seo-section {
  padding: 54px max(8%, env(safe-area-inset-left)) 64px max(8%, env(safe-area-inset-right));
  max-width: 1280px;
  margin: 0 auto;
}

.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 38px;
  border-top: 1px solid rgba(200, 160, 96, 0.25);
}

.split-section h2,
.service-panel h2,
.faq-list h2,
.seo-cta h2 {
  font-size: 1.75rem;
  line-height: 1.18;
  margin-bottom: 12px;
  color: var(--color-carbon);
}

.split-section p,
.service-panel p,
.faq-list p,
.seo-cta p,
.process-list {
  color: var(--color-dark-gray);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.service-panel {
  background-color: var(--color-white);
  border: 1px solid rgba(231, 223, 207, 0.78);
  box-shadow: var(--shadow-subtle);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 310px;
}

.service-panel a {
  margin-top: auto;
  color: var(--color-gold);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.78rem;
}

.service-panel a:hover {
  color: var(--color-carbon);
}

.process-list {
  padding-left: 22px;
}

.process-list li {
  margin-bottom: 12px;
}

.keyword-cloud {
  font-style: italic;
}

.work-description {
  font-size: 0.9rem;
  color: var(--color-dark-gray);
  margin-bottom: 18px;
}

.service-examples {
  border-top: 1px solid rgba(200, 160, 96, 0.25);
}

.example-block {
  margin-top: 46px;
}

.example-block h3 {
  font-size: 1.65rem;
  margin-bottom: 20px;
  color: var(--color-carbon);
}

.compact-gallery {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.faq-list {
  padding: 24px max(8%, env(safe-area-inset-left)) 70px max(8%, env(safe-area-inset-right));
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.faq-list article {
  background-color: var(--color-white);
  border-left: 3px solid var(--color-gold);
  box-shadow: var(--shadow-subtle);
  padding: 24px 28px;
}

.seo-cta {
  margin: 0 auto 76px;
  max-width: 920px;
  padding: 42px max(28px, 5%);
  background-color: var(--color-carbon);
  color: var(--color-white);
  text-align: center;
}

.seo-cta h2,
.seo-cta p {
  color: var(--color-white);
}

.seo-cta p {
  max-width: 680px;
  margin: 0 auto 24px;
}

/* ==========================================================================
   PIE DE PÁGINA (FOOTER)
   ========================================================================== */
footer {
  background-color: var(--color-carbon);
  color: var(--color-white);
  padding: 60px max(8%, env(safe-area-inset-left)) max(30px, env(safe-area-inset-bottom)) max(8%, env(safe-area-inset-right));
  border-top: 2px solid var(--color-gold);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-column h3 {
  color: var(--color-gold);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 25px;
  position: relative;
  display: inline-block;
  padding-bottom: 8px;
}

.footer-column h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 1px;
  background-color: var(--color-gold);
}

.footer-column p {
  color: var(--color-beige-light);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 15px;
  color: var(--color-beige-light);
  font-size: 0.9rem;
}

.footer-contact-icon {
  color: var(--color-gold);
  font-size: 1rem;
}

.footer-social-links {
  display: flex;
  gap: 15px;
  margin-top: 10px;
}

.social-btn {
  background-color: var(--color-dark-gray);
  color: var(--color-white);
  width: 40px;
  height: 40px;
  border-radius: 1px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-fast);
  border: 1px solid transparent;
}

.social-btn:hover {
  background-color: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
  transform: translateY(-3px);
}

.social-icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(231, 223, 207, 0.1);
  font-size: 0.8rem;
  color: #888888;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom-links a {
  margin-left: 20px;
  transition: var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--color-gold);
}

/* ==========================================================================
   RESPONSIVO / DISEÑO ADAPTATIVO
   ========================================================================== */
@media (max-width: 992px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-image-container {
    order: -1;
  }
  
  .modal-wrapper {
    grid-template-columns: 1fr;
    max-height: 85vh;
  }
  
  .modal-image-panel {
    max-height: 300px;
  }
  
  .modal-image-panel img {
    max-height: 300px;
  }
  
  .modal-info-panel {
    max-height: 50vh;
    padding: 30px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .service-grid,
  .split-section,
  .compact-gallery {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 74px;
  }

  header {
    padding: 0 max(14px, env(safe-area-inset-left)) 0 max(10px, env(safe-area-inset-right));
    gap: 6px;
  }

  header.scrolled {
    height: var(--header-height);
  }

  .logo-container {
    gap: 11px;
    flex: 1;
  }

  .logo-img-wrapper {
    width: 50px;
    height: 50px;
    flex: 0 0 50px;
  }

  .logo-title {
    font-size: 0.98rem;
    letter-spacing: 1.2px;
  }

  .logo-subtitle {
    font-size: 0.62rem;
    letter-spacing: 1.7px;
  }

  .cart-header-btn {
    font-size: 1.1rem;
    padding: 4px;
  }
  
  .menu-toggle {
    display: block;
  }
  
  nav {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: min(84vw, 320px);
    max-width: calc(100vw - 48px);
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    background-color: var(--color-carbon);
    padding: 32px 26px max(32px, env(safe-area-inset-bottom));
    border-right: 1px solid rgba(200, 160, 96, 0.2);
    transition: var(--transition-smooth);
    z-index: 999;
  }
  
  nav.active {
    left: 0;
  }
  
  nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 25px;
    width: 100%;
  }

  nav ul li,
  nav ul li a {
    width: 100%;
  }
  
  nav ul li a {
    font-size: 1rem;
  }
  
  .dropdown-menu {
    position: static;
    transform: none;
    background-color: transparent;
    border: none;
    box-shadow: none;
    padding: 5px 0 0 15px;
    opacity: 1;
    visibility: visible;
    display: none;
    width: 100%;
  }
  
  .dropdown.active .dropdown-menu,
  .dropdown:focus-within .dropdown-menu {
    display: flex;
  }

  .section {
    padding: 48px max(18px, env(safe-area-inset-left)) 56px max(18px, env(safe-area-inset-right));
  }

  .page-hero {
    padding: 48px max(18px, env(safe-area-inset-left)) 36px max(18px, env(safe-area-inset-right));
  }

  .page-hero h1 {
    font-size: 2.35rem;
  }

  .page-hero p {
    font-size: 1rem;
  }

  .seo-section,
  .faq-list {
    padding-left: max(18px, env(safe-area-inset-left));
    padding-right: max(18px, env(safe-area-inset-right));
  }

  .service-grid,
  .split-section,
  .compact-gallery {
    grid-template-columns: 1fr;
  }

  .service-panel {
    min-height: auto;
    padding: 24px;
  }

  .faq-list article {
    padding: 22px;
  }

  .section-header {
    margin-bottom: 36px;
  }
  
  .section-title {
    font-size: 2.2rem;
  }

  .section-subtitle {
    font-size: 1.05rem;
  }

  .hero-section {
    gap: 28px;
    padding: 24px 0;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-tag {
    font-size: 0.75rem;
    letter-spacing: 2.5px;
  }

  .hero-bio {
    font-size: 0.98rem;
    text-align: left;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .hero-buttons .btn,
  .featured-works .btn {
    width: 100%;
  }

  .hero-image-wrapper,
  .hero-image-deco {
    max-width: min(330px, 88vw);
  }

  .hero-image-deco {
    top: 10px;
    left: 10px;
  }

  .featured-works {
    margin-top: 48px;
    padding-top: 42px;
  }

  .featured-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .gallery-filters {
    justify-content: flex-start;
    gap: 10px;
    margin: 0 -18px 12px;
    padding: 0 18px 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .filter-btn {
    flex: 0 0 auto;
    padding: 8px 18px;
  }

  .checkout-form-grid {
    grid-template-columns: 1fr;
  }

  .work-info {
    padding: 20px;
  }

  .work-price-buy {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .btn-add-cart,
  .btn-sold-out {
    width: 100%;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
  }

  .cart-sidebar {
    right: -100%;
    max-width: none;
    width: 100%;
  }

  .cart-header,
  .cart-items-list,
  .cart-footer {
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
  }

  .cart-item {
    align-items: flex-start;
  }

  .modal-overlay {
    align-items: flex-start;
    overflow-y: auto;
  }

  .modal-wrapper {
    max-height: none;
    min-height: auto;
  }

  .modal-close-btn {
    top: 12px;
    right: 12px;
  }

  .modal-image-panel {
    height: min(62vh, 390px);
    max-height: none;
  }

  .modal-image-panel img {
    max-height: 100%;
  }

  .modal-info-panel {
    max-height: none;
    padding: 26px 22px 28px;
  }

  .modal-details-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .modal-title {
    font-size: 1.9rem;
    padding-right: 44px;
  }

  footer {
    padding-top: 46px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
  
  .footer-bottom-links a {
    margin: 0 10px;
  }
}

@media (max-width: 390px) {
  .logo-title {
    font-size: 0.88rem;
    letter-spacing: 0.9px;
  }

  .logo-subtitle {
    font-size: 0.56rem;
    letter-spacing: 1.2px;
  }

  .logo-img-wrapper {
    width: 46px;
    height: 46px;
    flex-basis: 46px;
  }

  .menu-toggle,
  .cart-header-btn {
    min-width: 40px;
  }

  .hero-title {
    font-size: 2.15rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .btn {
    padding-left: 18px;
    padding-right: 18px;
    letter-spacing: 1.3px;
  }
}