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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%);
    --aurora-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 20%, #f093fb 40%, #4facfe 60%, #00f2fe 80%, #667eea 100%);
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --bg-light: rgba(255, 255, 255, 0.8);
    --bg-transparent: rgba(255, 255, 255, 0.1);
    --border-color: rgba(255, 255, 255, 0.2);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 300;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #e0f2fe 0%, #f0e6ff 25%, #ffe6f0 50%, #e0f7fa 75%, #f0f9ff 100%);
    background-attachment: fixed;
    min-height: 100vh;
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-primary);
    background: transparent;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.logo::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--aurora-gradient);
    background-size: 200% 200%;
    transition: left 0.4s ease;
    z-index: -1;
    opacity: 0;
}

.logo:hover::before {
    left: 0;
    opacity: 1;
    animation: aurora-shift 3s ease infinite;
}

.logo:hover {
    color: white;
    transform: translateY(-2px);
}

@keyframes aurora-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-weight: 400;
    background: transparent;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

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

.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    padding: 0.5rem 2.5rem 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    color: var(--text-primary);
    outline: none;
    transition: all 0.3s ease;
    width: 200px;
}

.search-input:focus {
    width: 250px;
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(102, 126, 234, 0.5);
}

.search-icon {
    position: absolute;
    right: 0.75rem;
    color: var(--text-secondary);
    pointer-events: none;
}

.social-icons {
    display: flex;
    gap: 0.5rem;
}

.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.social-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--aurora-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 50%;
}

.social-icon:hover::before {
    opacity: 1;
}

.social-icon:hover {
    transform: translateY(-3px) scale(1.1);
    color: white;
}

.social-icon svg {
    position: relative;
    z-index: 1;
}

/* Main Content */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.hero-section {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4rem;
    border-radius: 24px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 25%, rgba(240, 147, 251, 0.1) 50%, rgba(79, 172, 254, 0.1) 75%, rgba(0, 242, 254, 0.1) 100%);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--aurora-gradient);
    background-size: 200% 200%;
    opacity: 0.15;
    animation: aurora-shift 8s ease infinite;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 4rem 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 300;
    background: var(--aurora-gradient);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: aurora-shift 5s ease infinite;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--text-secondary);
    font-weight: 300;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

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

.hero-btn {
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.hero-btn.primary {
    background: var(--aurora-gradient);
    background-size: 200% 200%;
    color: white;
    animation: aurora-shift 5s ease infinite;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.hero-btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.hero-btn.secondary {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    border: 2px solid rgba(102, 126, 234, 0.3);
}

.hero-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(102, 126, 234, 0.5);
    transform: translateY(-3px);
}

/* Articles Section */
.articles-section {
    margin-top: 2rem;
}

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

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.article-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
    background: rgba(255, 255, 255, 0.8);
}

.article-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: linear-gradient(135deg, #e0f2fe 0%, #f0e6ff 100%);
}

.article-content {
    padding: 1.5rem;
}

.article-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.article-title {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.article-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.pagination button {
    padding: 0.6rem 1.2rem;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 400;
}

.pagination button:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    transform: translateY(-2px);
}

.pagination button.active {
    background: var(--aurora-gradient);
    color: white;
    border: none;
    font-weight: 500;
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Category Page */
.category-header {
    text-align: center;
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.category-title {
    font-size: 3rem;
    font-weight: 300;
    background: var(--aurora-gradient);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: aurora-shift 5s ease infinite;
    margin-bottom: 0.5rem;
}

.category-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Article Detail Page */
.article-detail {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    border: 1px solid var(--border-color);
}

.article-header {
    margin-bottom: 2rem;
}

.article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.article-category {
    padding: 0.4rem 1rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: 1rem;
    background: var(--aurora-gradient);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: aurora-shift 5s ease infinite;
}

.article-excerpt {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.6;
}

.article-image-container {
    margin: 2rem 0;
    border-radius: 16px;
    overflow: hidden;
}

.article-featured-image {
    width: 100%;
    height: auto;
    display: block;
    background: linear-gradient(135deg, #e0f2fe 0%, #f0e6ff 100%);
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin-top: 2rem;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content h2 {
    font-size: 1.8rem;
    font-weight: 500;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.article-content h3 {
    font-size: 1.4rem;
    font-weight: 500;
    margin: 1.5rem 0 1rem;
    color: var(--text-primary);
}

.article-content img {
    width: 100%;
    border-radius: 12px;
    margin: 2rem 0;
}

/* Recommended Products */
.recommended-products {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.section-title {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-align: center;
}

.product-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.1);
}

.product-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #e0f2fe 0%, #f0e6ff 100%);
}

.product-name {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.product-price {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.product-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: 0.5rem;
    font-weight: 300;
}

/* Footer */
.footer {
    margin-top: 5rem;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1.5rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.footer-section h3 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-section p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

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

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

.footer-section ul li a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--text-primary);
}

.footer-social {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.footer-social-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(102, 126, 234, 0.1);
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social-icon:hover {
    background: var(--aurora-gradient);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        justify-content: center;
        width: 100%;
    }

    .nav-right {
        width: 100%;
        justify-content: center;
    }

    .search-input {
        width: 100%;
    }

    .hero-section {
        min-height: 50vh;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-btn {
        padding: 0.8rem 2rem;
        font-size: 0.9rem;
    }

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

    .article-detail {
        padding: 2rem 1.5rem;
    }

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

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