/* ============================================
   OFERTAS ONLINE - FUTURISTIC DESIGN SYSTEM
   ============================================ */

/* ========== CSS VARIABLES ========== */
:root {
    /* Color Palette - Futuristic */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F5F7FA;
    --color-bg-dark: #0D0F1A;
    --color-primary: #82358C;
    --color-primary-hover: #6B2A75;
    --color-secondary: #6B4CE6;
    --color-text-primary: #1A1D29;
    --color-text-secondary: #6B7280;
    --color-text-light: #9CA3AF;
    --color-border: #E5E7EB;
    --color-success: #10B981;
    --color-error: #EF4444;
    --color-warning: #F59E0B;
    
    /* Typography */
    --font-heading: 'Outfit', 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 20px rgba(130, 53, 140, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --color-bg-primary: #0D0F1A;
    --color-bg-secondary: #1A1D29;
    --color-text-primary: #F5F7FA;
    --color-text-secondary: #9CA3AF;
    --color-text-light: #6B7280;
    --color-border: #2D3748;
    --glass-bg: rgba(13, 15, 26, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* ========== TYPOGRAPHY ========== */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    font-size: clamp(0.875rem, 1.5vw, 1rem);
    line-height: 1.7;
    color: var(--color-text-secondary);
}

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

/* ========== GLASSMORPHISM UTILITIES ========== */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.glass-dark {
    background: rgba(13, 15, 26, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========== HEADER ========== */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-base);
}

.header-main {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--spacing-sm) 0;
    transition: var(--transition-base);
}

.header-main.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] .header-main.scrolled {
    background: rgba(13, 15, 26, 0.95);
}

.header-main .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    color: var(--color-primary);
    transition: var(--transition-base);
}

.logo:hover {
    transform: scale(1.02);
}

.logo-png {
    height: 40px;
    width: auto;
    transition: var(--transition-base);
}

.logo-text {
    background: linear-gradient(135deg, #82358C, #a739c0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.02em;
}

/* Search Bar */
.search-bar {
    flex: 1;
    max-width: 600px;
    position: relative;
}

.search-bar input {
    width: 100%;
    padding: 12px 50px 12px 20px;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    color: var(--color-text-primary);
    transition: var(--transition-base);
    outline: none;
}

.search-bar input:focus {
    border-color: var(--color-primary);
    background: var(--color-bg-primary);
    box-shadow: 0 0 0 4px rgba(130, 53, 140, 0.1);
}

.search-bar input::placeholder {
    color: var(--color-text-light);
}

.search-bar button {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.search-bar button:hover {
    background: var(--color-primary-hover);
    transform: translateY(-50%) scale(1.1);
}

/* Search Results Dropdown */
.search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-height: 400px;
    overflow-y: auto;
    z-index: 1000;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-results ul {
    list-style: none;
    padding: var(--spacing-xs);
}

.search-results li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
}

.search-results li:hover,
.search-results li.active {
    background: var(--color-bg-secondary);
}

.search-result-img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

.search-result-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.search-result-info {
    flex: 1;
    min-width: 0;
}

.search-result-name {
    display: block;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.search-result-price {
    font-size: 0.875rem;
    color: var(--color-primary);
    font-weight: 600;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-icon {
    position: relative;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: var(--transition-base);
    font-size: 1.125rem;
}

.btn-icon:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-icon .badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--color-error);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-bg-primary);
}

.btn-primary {
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    box-shadow: 0 4px 12px rgba(130, 53, 140, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Navigation */
nav {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    justify-content: center;
    align-items: center;
    gap: 0;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-menu li {
    position: relative;
}

.nav-menu li a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-text-primary);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition-base);
    position: relative;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: var(--transition-base);
    border-radius: var(--radius-full);
}

.nav-menu li:hover a::after,
.nav-menu li.active a::after {
    width: 80%;
}

.nav-menu li:hover a {
    color: var(--color-primary);
}

.nav-menu li a i {
    font-size: 1rem;
}

/* ========== HERO SECTION ========== */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: #e3e3e3;
    overflow: hidden;
    padding: var(--spacing-2xl) 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.hero-text h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, #82358C, #a739c0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
}

/* Trust Signals */
.trust-signals {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
}

.trust-signal {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex: 1;
}

.trust-signal i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.trust-signal span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

/* ========== PRODUCT CARDS ========== */
.product-card {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

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

.product-image {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 aspect ratio */
    overflow: hidden;
    background: var(--color-bg-secondary);
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.discount-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: 6px 12px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    z-index: 2;
}

.product-actions {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    opacity: 0;
    transform: translateX(10px);
    transition: var(--transition-base);
    z-index: 2;
}

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

.product-actions a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    transition: var(--transition-base);
}

.product-actions a:hover {
    background: var(--color-primary);
    color: white;
    transform: scale(1.1);
}

.product-info {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.current-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-heading);
}

.original-price {
    font-size: 1rem;
    color: var(--color-text-light);
    text-decoration: line-through;
}

.add-to-cart {
    width: 100%;
    padding: 12px;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.add-to-cart:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========== PRODUCT GRID ========== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

/* ========== CATEGORIES ========== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

.category-card {
    position: relative;
    height: 300px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-base);
}

.category-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(130, 53, 140, 0.7), rgba(107, 76, 230, 0.7));
    opacity: 0;
    transition: var(--transition-base);
    z-index: 1;
}

.category-card:hover::before {
    opacity: 1;
}

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

.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.category-card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-lg);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    z-index: 2;
}

.category-card-content h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

/* ========== FOOTER ========== */
footer {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    color: var(--color-text-primary);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-column h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.footer-column ul li a {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

.footer-column ul li a:hover {
    color: var(--color-primary);
    padding-left: 4px;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.social-links a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    transition: var(--transition-base);
}

.social-links a:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-4px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* ========== UTILITIES ========== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title h2 {
    margin-bottom: var(--spacing-sm);
}

.section-title p {
    max-width: 600px;
    margin: 0 auto;
}

/* ========== ANIMATIONS ========== */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple-effect:active::after {
    width: 300px;
    height: 300px;
    animation: ripple 0.6s ease-out;
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .trust-signals {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .header-main .container {
        flex-wrap: wrap;
    }
    
    .search-bar {
        order: 3;
        width: 100%;
        max-width: 100%;
    }
    
    .nav-menu {
        display: none;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: var(--spacing-md);
    }
    
    .category-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: 500px;
        padding: var(--spacing-xl) 0;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .trust-signals {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* ========== DARK MODE TOGGLE ========== */
.theme-toggle {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: var(--transition-base);
    font-size: 1.125rem;
}

.theme-toggle:hover {
    background: var(--color-primary);
    color: white;
    transform: rotate(180deg);
}

/* ========== LOADING SKELETONS ========== */
.skeleton {
    background: linear-gradient(90deg, var(--color-bg-secondary) 25%, rgba(255, 255, 255, 0.5) 50%, var(--color-bg-secondary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton-card {
    height: 400px;
    border-radius: var(--radius-xl);
}