/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --text-color: #1f2937;
    --text-dark: #111827;
    --text-light: #6b7280;
    --text-lighter: #9ca3af;
    --bg-color: #ffffff;
    --bg-light: #f9fafb;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bg-gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.2);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    line-height: 1.7;
    background-color: var(--bg-color);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--border-light);
    padding: 1.25rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px) saturate(180%);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--bg-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.nav {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

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

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

.nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    background: var(--bg-gradient);
    color: white;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 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='0.05'%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");
    opacity: 0.3;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.35rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.7;
    font-weight: 400;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    color: var(--primary-color);
    padding: 1.125rem 2.75rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    transition: var(--transition);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--primary-color);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: 0;
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

.cta-button span {
    position: relative;
    z-index: 1;
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    color: white;
}

/* Trust Indicators Section */
.trust-section {
    padding: 4rem 0;
    background: white;
    border-bottom: 1px solid var(--border-light);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.trust-item {
    padding: 1.5rem;
}

.trust-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.trust-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.trust-label {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Guide Section */
.guide-section {
    padding: 6rem 0;
    background: var(--bg-light);
    position: relative;
}

.section-title {
    font-size: 2.75rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 4rem;
    font-size: 1.2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.guide-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
    align-items: start;
}

.guide-text {
    font-size: 1.15rem;
    line-height: 1.9;
    color: var(--text-color);
}

.guide-text p {
    margin-bottom: 1.75rem;
}

.guide-text strong {
    color: var(--text-dark);
    font-weight: 600;
}

.guide-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.feature-item {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.feature-item:hover::before {
    transform: scaleY(1);
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.feature-item h3::before {
    content: '✓';
    background: var(--primary-color);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
}

.feature-item p {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.6;
}

/* Products Section */
.products-section {
    padding: 6rem 0;
    background: white;
}

/* Category Tabs */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    background: var(--bg-light);
    padding: 0.5rem;
    border-radius: var(--radius-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.tab-btn {
    padding: 0.875rem 1.75rem;
    border: none;
    background: transparent;
    color: var(--text-color);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

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

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-light);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--bg-gradient);
    transform: scaleX(0);
    transition: var(--transition);
    z-index: 1;
}

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

.product-card:hover::before {
    transform: scaleX(1);
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--secondary-color);
    color: white;
    padding: 0.375rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    z-index: 2;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow);
}

.product-badge.best-seller {
    background: var(--accent-color);
}

.product-badge.new {
    background: var(--primary-color);
}

.product-image-link {
    display: block;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.product-image-wrapper {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: var(--bg-light);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image-wrapper::after {
    content: '🔍 Click to View';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: white;
    padding: 1rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-image-wrapper::after {
    opacity: 1;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

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

.product-info {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.product-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-dark);
    line-height: 1.4;
    min-height: 3.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price-wrapper {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.product-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin: 0;
}

.product-price-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.product-description {
    font-size: 0.95rem;
    color: var(--text-color);
    margin: 0;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.6;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.product-stars {
    color: var(--accent-color);
    font-size: 1rem;
}

.product-reviews {
    font-size: 0.875rem;
    color: var(--text-light);
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.product-tag {
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.product-card:hover .product-tag {
    background: rgba(37, 99, 235, 0.1);
    border-color: var(--primary-color);
}

.product-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-align: center;
    background: var(--bg-gradient);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: var(--transition);
    width: 100%;
    position: relative;
    overflow: hidden;
    margin-top: auto;
}

.product-link::before {
    content: '→';
    font-size: 1.2rem;
    transition: var(--transition);
}

.product-link:hover::before {
    transform: translateX(5px);
}

.product-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.product-link:active {
    transform: translateY(0);
}

.loading, .no-products {
    text-align: center;
    padding: 4rem;
    color: var(--text-light);
    font-size: 1.1rem;
    grid-column: 1 / -1;
}

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.loading::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Testimonials Section */
.testimonials-section {
    padding: 6rem 0;
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 6rem;
    color: var(--primary-color);
    opacity: 0.1;
    font-weight: 700;
    line-height: 1;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}

.testimonial-info h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.testimonial-info p {
    font-size: 0.875rem;
    color: var(--text-light);
    margin: 0;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 2rem;
    text-align: center;
}

.footer .container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: left;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    line-height: 2;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer p {
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-note {
    font-size: 0.85rem;
    opacity: 0.7;
    font-style: italic;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .guide-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .guide-features {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .category-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0.375rem;
        margin-bottom: 2rem;
    }
    
    .tab-btn {
        flex-shrink: 0;
        padding: 0.75rem 1.25rem;
        font-size: 0.875rem;
    }
    
    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .product-info {
        padding: 1.5rem;
    }
    
    .nav {
        gap: 1.5rem;
    }
    
    .nav a {
        font-size: 0.875rem;
    }
}