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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

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

/* ===== Header & Navigation ===== */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

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

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

.btn-secondary:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
}

.btn-small {
    padding: 8px 20px;
    font-size: 0.9rem;
}

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
}

/* ===== Sections ===== */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* ===== Categories Section ===== */
.categories-section {
    padding: 80px 0;
    background: var(--bg-white);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.category-card {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-dark);
    transition: var(--transition);
}

.category-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.category-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.category-card p {
    color: var(--text-light);
}

/* ===== Products Grid ===== */
.featured-section,
.products-section,
.category-section {
    padding: 80px 0;
}

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

.product-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.product-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

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

.product-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.product-badge.free {
    background: var(--secondary-color);
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.product-category {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

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

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

/* ===== Filter Section ===== */
.filter-section {
    padding: 40px 0;
    background: var(--bg-white);
}

.filter-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

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

/* ===== Product Details ===== */
.product-details-section {
    padding: 60px 0;
}

.product-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.product-gallery {
    position: sticky;
    top: 100px;
}

.main-image {
    width: 100%;
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1rem;
    background: var(--bg-light);
}

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

.thumbnail-images {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.thumbnail {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.thumbnail:hover,
.thumbnail.active {
    border-color: var(--primary-color);
}

.product-badge-large {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.product-details-info h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.stars {
    color: #fbbf24;
    font-size: 1.2rem;
}

.rating-text {
    color: var(--text-light);
}

.product-price-large {
    margin-bottom: 2rem;
}

.product-price-large .price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
}

.price-note {
    color: var(--text-light);
    font-size: 0.9rem;
}

.product-description,
.product-features,
.product-tech {
    margin-bottom: 2rem;
}

.product-description h3,
.product-features h3,
.product-tech h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.product-features ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.product-features li {
    padding: 0.5rem 0;
    color: var(--text-dark);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: var(--bg-light);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.product-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.product-guarantee {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
}

.product-guarantee p {
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
    font-weight: 600;
}

/* ===== Product Tabs ===== */
.product-tabs {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.tab-buttons {
    display: flex;
    gap: 1rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 2rem;
}

.tab-btn {
    padding: 1rem 2rem;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-light);
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.tab-content h4 {
    font-size: 1.2rem;
    margin: 1.5rem 0 0.5rem;
}

.tab-content ul {
    margin-left: 1.5rem;
}

.tab-content li {
    margin-bottom: 0.5rem;
}

.changelog-item {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

/* ===== Features Section ===== */
.why-section {
    padding: 80px 0;
    background: var(--bg-light);
}

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

.feature-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-light);
}

/* ===== Testimonials ===== */
.testimonials-section {
    padding: 80px 0;
    background: var(--bg-white);
}

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

.testimonial-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.testimonial-stars {
    color: #fbbf24;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.testimonial-author strong {
    display: block;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.testimonial-author span {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== Category Sections ===== */
.category-section {
    background: var(--bg-white);
}

.category-section:nth-child(even) {
    background: var(--bg-light);
}

.category-header {
    text-align: center;
    margin-bottom: 3rem;
}

.category-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.category-header p {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* ===== About Page ===== */
.about-content {
    padding: 60px 0;
}

.about-intro {
    max-width: 800px;
    margin: 0 auto 4rem;
    text-align: center;
}

.about-intro h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.about-intro p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.mission-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.mission-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.mission-card p {
    font-size: 1.1rem;
    line-height: 1.8;
}

.values-section {
    margin-bottom: 4rem;
}

.values-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.value-item {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.value-item h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    background: var(--bg-light);
    padding: 3rem;
    border-radius: 12px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* ===== Contact Page ===== */
.contact-section {
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
}

.contact-form-wrapper h2,
.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-item {
    margin-bottom: 2rem;
}

.contact-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.contact-item p,
.contact-item a {
    color: var(--text-light);
    text-decoration: none;
}

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

.social-links-large {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.social-links-large a {
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== Legal Pages ===== */
.legal-content {
    padding: 60px 0;
}

.legal-text {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.legal-text h2 {
    font-size: 1.8rem;
    margin: 2rem 0 1rem;
    color: var(--primary-color);
}

.legal-text h2:first-child {
    margin-top: 0;
}

.legal-text p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.legal-text ul {
    margin: 1rem 0 1rem 2rem;
}

.legal-text li {
    margin-bottom: 0.5rem;
}

.legal-text a {
    color: var(--primary-color);
    text-decoration: none;
}

.legal-text a:hover {
    text-decoration: underline;
}

/* ===== Free Templates & CTA ===== */
.free-templates-section {
    padding: 60px 0;
}

.cta-section {
    text-align: center;
    margin-top: 4rem;
    padding: 3rem;
    background: var(--bg-light);
    border-radius: 12px;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* ===== Related Products ===== */
.related-products {
    padding: 80px 0;
    background: var(--bg-light);
}

/* ===== Footer ===== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

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

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    font-size: 1.5rem;
}

.social-links a {
    transition: var(--transition);
}

.social-links a:hover {
    transform: scale(1.2);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .product-details-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-gallery {
        position: static;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-features ul {
        grid-template-columns: 1fr;
    }

    .product-actions {
        flex-direction: column;
    }

    .tab-buttons {
        flex-wrap: wrap;
    }

    .tab-btn {
        padding: 0.75rem 1rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }
}