/* ===== CSS VARIABLES & THEMES ===== */
:root {
    /* Light Theme Colors */
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --secondary-color: #6c757d;
    --accent-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --success-color: #28a745;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --bg-overlay: rgba(0, 0, 0, 0.1);
    
    /* Text Colors */
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #868e96;
    --text-inverse: #ffffff;
    
    /* Border & Shadow */
    --border-color: #dee2e6;
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Grid */
    --container-max-width: 1200px;
    --grid-gap: 1.5rem;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #1a1d23;
    --bg-secondary: #242930;
    --bg-tertiary: #2f3439;
    --bg-overlay: rgba(255, 255, 255, 0.1);
    
    --text-primary: #ffffff;
    --text-secondary: #adb5bd;
    --text-muted: #6c757d;
    --text-inverse: #212529;
    
    --border-color: #495057;
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

a:hover {
    color: var(--primary-hover);
}

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

.hidden {
    display: none !important;
}

.mobile-only {
    display: none;
}

@media (max-width: 768px) {
    .mobile-only {
        display: block;
    }
    .desktop-only {
        display: none;
    }
}

/* ===== HEADER & NAVIGATION ===== */
.main-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.navbar {
    padding: var(--spacing-md) 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand .brand-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.navbar-brand i {
    color: var(--primary-color);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

.navbar-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Language Switcher */
.language-switcher {
    position: relative;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.language-toggle:hover {
    background-color: var(--bg-secondary);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-sm);
    min-width: 120px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.language-switcher:hover .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.language-option:hover,
.language-option.active {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
}

/* Theme Toggle */
.theme-toggle {
    position: relative;
    width: 40px;
    height: 40px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--bg-secondary);
}

.theme-toggle .fa-moon {
    display: block;
}

.theme-toggle .fa-sun {
    display: none;
}

[data-theme="dark"] .theme-toggle .fa-moon {
    display: none;
}

[data-theme="dark"] .theme-toggle .fa-sun {
    display: block;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-fast);
}

/* ===== HERO SECTION ===== */
.hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.hero-content h1 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Search Filter Bar */
.search-filter-bar {
    max-width: 600px;
    margin: 0 auto;
}

.search-input-group {
    display: flex;
    gap: var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
}

.search-input {
    flex: 1;
    border: none;
    background: none;
    padding: var(--spacing-sm);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    outline: none;
}

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

.category-select {
    border: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    outline: none;
}

.search-btn {
    background: var(--primary-color);
    color: var(--text-inverse);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-btn:hover {
    background: var(--primary-hover);
}

/* ===== DEALS SECTION ===== */
.deals-section {
    padding: var(--spacing-2xl) 0;
}

.deals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--grid-gap);
    margin-bottom: var(--spacing-xl);
}

/* Deal Cards */
.deal-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.deal-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.deal-image-container {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.deal-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.deal-card:hover .deal-image {
    transform: scale(1.05);
}

.discount-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--danger-color);
    color: var(--text-inverse);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.deal-content {
    padding: var(--spacing-lg);
}

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

.deal-description {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.deal-price {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.original-price {
    text-decoration: line-through;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.current-price {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--accent-color);
}

.deal-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.deal-category {
    background: var(--bg-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

.deal-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md);
    background: var(--primary-color);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.deal-button:hover {
    background: var(--primary-hover);
    color: var(--text-inverse);
    transform: translateY(-1px);
}

/* No Deals Found */
.no-deals {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.no-deals i {
    margin-bottom: var(--spacing-lg);
    color: var(--text-muted);
}

/* ===== PAGINATION ===== */
.pagination {
    margin-top: var(--spacing-xl);
}

.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
}

.pagination-btn,
.pagination-number {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination-btn:hover,
.pagination-number:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.pagination-number.active {
    background: var(--primary-color);
    color: var(--text-inverse);
    border-color: var(--primary-color);
}

/* ===== DISCLAIMER SECTION ===== */
.disclaimer-section {
    background: var(--bg-secondary);
    padding: var(--spacing-lg) 0;
}

.disclaimer-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.disclaimer-box i {
    color: var(--warning-color);
}

/* ===== FOOTER ===== */
.main-footer {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--text-inverse);
    border-color: var(--primary-color);
}

/* Newsletter */
.newsletter-input-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.newsletter-input {
    flex: 1;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
}

.newsletter-btn {
    background: var(--primary-color);
    color: var(--text-inverse);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.newsletter-btn:hover {
    background: var(--primary-hover);
}

.newsletter-privacy {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-legal {
    margin-bottom: var(--spacing-md);
}

.copyright {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.legal-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.legal-link {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.legal-link:hover {
    color: var(--primary-color);
}

.cookie-settings-link {
    text-decoration: underline;
    font-weight: 600;
}

.affiliate-disclaimer {
    margin-bottom: var(--spacing-md);
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

.footer-meta {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--text-inverse);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: var(--font-size-3xl);
    }
    
    .search-input-group {
        flex-direction: column;
    }
    
    .deals-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .legal-nav {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .pagination-container {
        flex-wrap: wrap;
    }
    
    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .deals-section {
        padding: var(--spacing-xl) 0;
    }
    
    .deal-card {
        margin: 0 var(--spacing-sm);
    }
}

/* ===== LOADING STATES ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

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

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */
@media print {
    .main-header,
    .main-footer,
    .back-to-top,
    .cookie-consent {
        display: none !important;
    }
    
    .deal-card {
        break-inside: avoid;
        border: 1px solid #000;
        margin-bottom: 1rem;
    }
}