/* ============================================
   ARTE RENACER - ESTILOS PRINCIPALES
   ============================================ */

:root {
    /* Colors */
    --primary: #b45309;
    --primary-light: #d97706;
    --primary-dark: #92400e;
    --secondary: #f59e0b;
    --accent: #fbbf24;
    
    --stone-50: #fafaf9;
    --stone-100: #f5f5f4;
    --stone-200: #e7e5e4;
    --stone-300: #d6d3d1;
    --stone-400: #a8a29e;
    --stone-500: #78716c;
    --stone-600: #57534e;
    --stone-700: #44403c;
    --stone-800: #292524;
    --stone-900: #1c1917;
    
    --success: #22c55e;
    --error: #ef4444;
    --warning: #f59e0b;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', system-ui, sans-serif;
    
    /* Spacing */
    --container: 1280px;
    --nav-height: 80px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.25);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ============================================
   RESET & BASE
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--stone-800);
    background: var(--stone-50);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.nav-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.5rem;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--stone-600);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.cart-btn {
    position: relative;
    width: 48px;
    height: 48px;
    background: #fef3c7;
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.cart-btn:hover {
    background: #fde68a;
}

.cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 22px;
    height: 22px;
    background: var(--primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    color: var(--stone-700);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        box-shadow: var(--shadow-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-link {
        padding: 1rem;
        border-radius: 0.5rem;
    }
    
    .nav-link:hover {
        background: var(--stone-100);
    }
    
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 9999px;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
}

.btn-whatsapp {
    background: #25d366;
    color: white;
    font-size: 1.125rem;
    padding: 1.25rem 2.5rem;
}

.btn-whatsapp:hover {
    background: #128c7e;
    transform: scale(1.05);
}

.btn-full {
    width: 100%;
}

.whatsapp-icon {
    width: 24px;
    height: 24px;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #78350f 0%, #c2410c 50%, #9f1239 100%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 2rem;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    margin-bottom: 2rem;
    border: 1px solid rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.9);
    font-size: 0.875rem;
    font-weight: 500;
}

.hero-badge svg {
    width: 16px;
    height: 16px;
    color: #fde047;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 10vw, 7rem);
    font-weight: 800;
    color: white;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.hero-title span {
    display: block;
}

.gradient-text {
    background: linear-gradient(90deg, #fde047, #fdba74, #fda4af);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.8);
    max-width: 600px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255,255,255,0.5);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 12px;
    background: rgba(255,255,255,0.7);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes scroll {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(8px); }
}

/* ============================================
   SECTIONS
   ============================================ */

.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--stone-800);
    margin-bottom: 1rem;
}

.section-title.light {
    color: white;
}

.section-subtitle {
    color: var(--stone-500);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-footer {
    text-align: center;
    margin-top: 3rem;
}

/* Featured Section */
.featured-section {
    background: linear-gradient(180deg, var(--stone-100) 0%, white 100%);
}

/* Products Section */
.products-section {
    background: var(--stone-50);
}

/* ============================================
   PRODUCTS GRID
   ============================================ */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    height: 280px;
    background: linear-gradient(135deg, #fef3c7, #ffedd5);
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: #f43f5e;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
}

.product-actions {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-actions {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.add-to-cart-btn {
    background: white;
    color: var(--primary);
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.add-to-cart-btn:hover {
    background: #fef3c7;
}

.add-to-cart-btn svg {
    width: 18px;
    height: 18px;
}

.product-info {
    padding: 1.5rem;
}

.product-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--primary);
    background: #fef3c7;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    margin-bottom: 0.5rem;
}

.product-name {
    font-weight: 700;
    color: var(--stone-800);
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.product-description {
    color: var(--stone-500);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.product-rating {
    display: flex;
    gap: 2px;
    color: #facc15;
}

.product-rating svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* Out of stock */
.product-card.out-of-stock .product-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
}

.product-card.out-of-stock .product-badge {
    background: var(--stone-800);
}

.product-card.out-of-stock .add-to-cart-btn {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   FILTERS
   ============================================ */

.filters-bar {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-box svg {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--stone-400);
}

.search-box input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    background: var(--stone-100);
    border: 2px solid transparent;
    border-radius: 9999px;
    outline: none;
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--primary);
    background: white;
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-weight: 500;
    color: var(--stone-600);
    background: var(--stone-100);
    transition: var(--transition);
}

.filter-btn:hover {
    background: var(--stone-200);
}

.filter-btn.active {
    background: var(--primary);
    color: white;
}

.no-products {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--stone-400);
}

.no-products svg {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
}

.no-products h3 {
    font-size: 1.25rem;
    color: var(--stone-600);
    margin-bottom: 0.5rem;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-section {
    background: var(--stone-900);
    color: white;
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

@media (max-width: 968px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

.about-content {
    position: relative;
    z-index: 10;
}

.about-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--stone-300);
    margin-bottom: 1.5rem;
}

.about-text.secondary {
    color: var(--stone-400);
}

.about-stats {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
}

.stat {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--secondary);
}

.stat-label {
    color: var(--stone-400);
    font-size: 0.875rem;
}

.about-gallery {
    position: relative;
}

.gallery-frame {
    position: relative;
    background: var(--stone-800);
    border-radius: 1.5rem;
    padding: 2rem;
}

.gallery-frame::before {
    content: '';
    position: absolute;
    inset: -8px;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    border-radius: 1.75rem;
    z-index: -1;
    transform: rotate(3deg);
}

.gallery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.gallery-grid img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 1rem;
    transition: transform 0.5s ease;
}

.gallery-grid img:hover {
    transform: scale(1.05);
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--secondary), var(--primary-light), #f43f5e);
}

.cta-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 2rem 0;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.cta-subtitle {
    color: rgba(255,255,255,0.9);
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--stone-900);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-desc {
    color: var(--stone-400);
    margin-bottom: 1.5rem;
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--stone-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-links h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--secondary);
}

.footer-links ul li {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--stone-400);
}

.footer-links ul li svg {
    width: 16px;
    height: 16px;
}

.footer-links a {
    color: var(--stone-400);
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid var(--stone-800);
    margin-top: 3rem;
    padding-top: 2rem;
    text-align: center;
    color: var(--stone-500);
    font-size: 0.875rem;
}

/* ============================================
   CART SIDEBAR
   ============================================ */

.cart-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1100;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.cart-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 420px;
    height: 100vh;
    background: white;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-xl);
}

.cart-sidebar.active {
    transform: translateX(0);
}

.cart-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--stone-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cart-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
}

.close-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--stone-500);
    transition: var(--transition);
}

.close-btn:hover {
    background: var(--stone-100);
}

.cart-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.cart-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--stone-400);
}

.cart-empty svg {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    color: var(--stone-300);
}

.cart-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--stone-50);
    border-radius: 1rem;
    margin-bottom: 1rem;
}

.cart-item-image {
    width: 80px;
    height: 80px;
    border-radius: 0.75rem;
    overflow: hidden;
    flex-shrink: 0;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    color: var(--stone-800);
    margin-bottom: 0.25rem;
}

.cart-item-price {
    color: var(--primary);
    font-weight: 600;
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.qty-btn {
    width: 32px;
    height: 32px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.qty-btn:hover {
    background: var(--stone-100);
}

.qty-btn svg {
    width: 16px;
    height: 16px;
}

.cart-item-qty {
    font-weight: 700;
    min-width: 24px;
    text-align: center;
}

.remove-btn {
    margin-left: auto;
    color: #ef4444;
    transition: var(--transition);
}

.remove-btn:hover {
    color: #dc2626;
}

.remove-btn svg {
    width: 20px;
    height: 20px;
}

.cart-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--stone-200);
    background: white;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.cart-total span:first-child {
    color: var(--stone-600);
}

.total-amount {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

/* Checkout Form */
.checkout-form {
    padding: 1.5rem;
    flex: 1;
    overflow-y: auto;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--stone-600);
    font-weight: 500;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.back-btn:hover {
    color: var(--stone-800);
}

.back-btn svg {
    width: 20px;
    height: 20px;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--stone-700);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--stone-100);
    border: 2px solid transparent;
    border-radius: 0.75rem;
    outline: none;
    transition: var(--transition);
    resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background: white;
}

.order-summary {
    background: #fef3c7;
    border-radius: 1rem;
    padding: 1rem;
    margin: 1.5rem 0;
}

.order-summary h4 {
    font-weight: 700;
    color: var(--stone-800);
    margin-bottom: 0.75rem;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    padding: 0.5rem 0;
    color: var(--stone-600);
}

.summary-item span:last-child {
    font-weight: 500;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid #fde68a;
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    font-weight: 700;
}

.summary-total span:last-child {
    color: var(--primary);
}

/* ============================================
   NOTIFICATIONS
   ============================================ */

.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--success);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-xl);
    z-index: 2000;
    transform: translateY(150%);
    opacity: 0;
    transition: var(--transition);
}

.notification.active {
    transform: translateY(0);
    opacity: 1;
}

.notification.error {
    background: var(--error);
}

.notification svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   WHATSAPP FLOAT
   ============================================ */

.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background: #128c7e;
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
}

/* ============================================
   LOADING
   ============================================ */

.loading-spinner {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--stone-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: spin 1s linear infinite;
}

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

/* ============================================
   UTILITIES
   ============================================ */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

@media (max-width: 640px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .about-stats {
        flex-wrap: wrap;
        gap: 2rem;
    }
    
    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        max-width: none;
    }
    
    .category-filters {
        justify-content: center;
    }
}