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

:root {
    /* Colors */
    --primary-color: #10B981;
    --primary-light: #34D399;
    --primary-dark: #059669;
    --secondary-color: #F5F5DC;
    --secondary-light: #FEFDFB;
    --secondary-dark: #E8E6D4;
    --accent-color: #0F172A;
    --accent-light: #1E293B;
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --text-light: #94A3B8;
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --success: #22C55E;
    --warning: #F59E0B;
    --error: #EF4444;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Lora', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

.lead {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 1rem;
    gap: var(--spacing-xs);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-primary);
    border: 2px solid var(--secondary-dark);
}

.btn-secondary:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--text-primary);
}

.logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.brand-text {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-color);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    font-family: var(--font-primary);
    font-weight: 500;
    text-decoration: none;
    color: var(--text-primary);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xs);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    list-style: none;
    z-index: 100;
}

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

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.dropdown-menu a:hover {
    background: var(--gray-50);
    color: var(--primary-color);
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--secondary-color) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.pexels.com/photos/1571460/pexels-photo-1571460.jpeg?auto=compress&cs=tinysrgb&w=1920') center/cover;
    opacity: 0.1;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Featured Section */
.featured-section {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.article-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
}

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

.article-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

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

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

.article-category {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-category.eco-living {
    background: var(--primary-color);
    color: var(--white);
}

.article-category.organic-food {
    background: var(--success);
    color: var(--white);
}

.article-category.sustainable-fashion {
    background: var(--warning);
    color: var(--white);
}

.article-category.wellness {
    background: #8B5CF6;
    color: var(--white);
}

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

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

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

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

.article-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-light);
    font-family: var(--font-primary);
}

.article-meta span {
    position: relative;
}

.article-meta span:not(:last-child)::after {
    content: '•';
    margin-left: var(--spacing-sm);
    color: var(--gray-300);
}

/* Newsletter Section */
.newsletter-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    padding: var(--spacing-3xl) 0;
    margin: var(--spacing-3xl) 0;
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-title {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.newsletter-text {
    color: var(--white);
    opacity: 0.95;
    margin-bottom: var(--spacing-xl);
    font-size: 1.125rem;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: 0 auto;
}

.newsletter-input {
    flex: 1;
    padding: 0.875rem 1rem;
    border: 2px solid var(--white);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: var(--white);
    color: var(--text-primary);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Footer */
.footer {
    background: var(--accent-color);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    max-width: 350px;
}

.footer-logo {
    width: 50px;
    height: 50px;
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
}

.footer-description {
    color: var(--gray-300);
    line-height: 1.6;
}

.footer-links h4,
.footer-social h4 {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

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

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

.footer-links a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid var(--accent-light);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--gray-300);
}

/* Article Page Styles */
.article-page {
    padding-top: 90px;
    min-height: 100vh;
}

.article-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.breadcrumb {
    font-family: var(--font-primary);
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.breadcrumb a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.article-header .article-title {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.article-meta-detail {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-xl);
    font-family: var(--font-primary);
    font-size: 0.875rem;
}

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

.article-featured-image {
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.article-featured-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.article-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.article-body h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.article-body h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.article-conclusion {
    background: var(--gray-50);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    margin-top: var(--spacing-xl);
}

.article-conclusion p {
    font-style: italic;
    color: var(--text-primary);
    margin: 0;
}

/* Author Box */
.author-box {
    background: var(--white);
    border: 2px solid var(--gray-100);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.author-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.author-name {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.author-bio {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

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

.author-social a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    font-family: var(--font-primary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.author-social a:hover {
    color: var(--primary-dark);
}

/* Related Articles */
.related-articles {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--gray-100);
}

.related-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.article-card.small .article-image {
    height: 180px;
}

.article-card.small .article-content {
    padding: var(--spacing-md);
}

.article-card.small .article-title {
    font-size: 1.125rem;
}

/* Category Page Styles */
.category-hero {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    padding: 120px 0 var(--spacing-2xl);
    text-align: center;
}

.category-title {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.category-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.category-filter {
    background: var(--white);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--gray-100);
    color: var(--text-secondary);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.articles-section {
    padding: var(--spacing-2xl) 0;
}

/* About Page Styles */
.about-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    padding: 120px 0 var(--spacing-2xl);
    text-align: center;
    color: var(--white);
}

.about-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.about-subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
}

.about-main {
    padding: var(--spacing-3xl) 0;
}

.about-section {
    margin-bottom: var(--spacing-3xl);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.mission-section {
    background: var(--gray-50);
    padding: var(--spacing-3xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-3xl);
}

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

.mission-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.mission-card:hover {
    transform: translateY(-4px);
}

.mission-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.mission-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.mission-card p {
    color: var(--text-secondary);
}

.values-section {
    margin-bottom: var(--spacing-3xl);
}

.values-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    margin-top: var(--spacing-xl);
}

.value-item {
    margin-bottom: var(--spacing-lg);
}

.value-item h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.values-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.team-section {
    background: var(--gray-50);
    padding: var(--spacing-3xl);
    border-radius: var(--radius-xl);
}

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

.team-member {
    text-align: center;
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.team-member:hover {
    transform: translateY(-4px);
}

.team-member img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: var(--spacing-md);
    border: 4px solid var(--primary-light);
}

.team-member h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.team-member p:first-of-type {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

/* Contact Page Styles */
.contact-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    padding: 120px 0 var(--spacing-2xl);
    text-align: center;
    color: var(--white);
}

.contact-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.contact-subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
}

.contact-main {
    padding: var(--spacing-3xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-form {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-info {
    background: var(--gray-50);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    height: fit-content;
}

.contact-info h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    align-items: start;
}

.contact-icon {
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.contact-item h4 {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.contact-item p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-cta {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-lg);
    border: 2px solid var(--primary-light);
}

.contact-cta h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--transition-normal);
    margin-right: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

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

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

[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .articles-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .about-grid,
    .values-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        padding: var(--spacing-lg);
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--gray-50);
        margin-top: var(--spacing-xs);
        border-radius: var(--radius-md);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .article-header .article-title {
        font-size: 2rem;
    }
    
    .article-meta-detail {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .author-box {
        flex-direction: column;
        text-align: center;
    }
    
    .filter-tabs {
        gap: var(--spacing-xs);
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .about-title,
    .contact-title {
        font-size: 2.5rem;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .mission-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .article-featured-image img {
        height: 250px;
    }
    
    .about-title,
    .contact-title {
        font-size: 2rem;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Success/Error Messages */
.message {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-primary);
    font-weight: 500;
}

.message.success {
    background: #DCFCE7;
    color: #166534;
    border: 1px solid #BBF7D0;
}

.message.error {
    background: #FEE2E2;
    color: #991B1B;
    border: 1px solid #FECACA;
}

/* Smooth scroll offset for fixed header */
section {
    scroll-margin-top: 80px;
}

/* Focus styles for accessibility */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer,
    .newsletter-section {
        display: none;
    }
    
    .article-page {
        padding-top: 0;
    }
    
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
    }
}