/* Main Styles for Vision Wellness Institute */
body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
}

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

/* Header Styles */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

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

.logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    margin-left: 10px;
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #006064;
    margin: 0;
}

.logo-text p {
    font-size: 0.8rem;
    color: #607D8B;
    margin: 0;
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav ul li {
    margin-left: 25px;
}

nav ul li:first-child {
    margin-left: 0;
}

nav ul li a {
    text-decoration: none;
    color: #455A64;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #006064;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #455A64;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background-color: #E0F7FA;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    color: #006064;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    color: #455A64;
    max-width: 800px;
    margin: 0 auto 30px;
}

.cta-button {
    display: inline-block;
    background-color: #006064;
    color: white;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: #00838F;
}

/* Featured Articles Section */
.featured-articles {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2rem;
    color: #006064;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: #607D8B;
    max-width: 700px;
    margin: 0 auto;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.article-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.article-image {
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.article-content {
    padding: 25px;
}

.article-category {
    display: inline-block;
    background-color: #E0F7FA;
    color: #006064;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 3px;
    margin-bottom: 15px;
}

.article-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #263238;
    margin-bottom: 10px;
}

.article-excerpt {
    font-size: 0.95rem;
    color: #607D8B;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: #90A4AE;
}

.article-author {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 10px;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.read-more {
    color: #006064;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #00838F;
}

/* Topics Section */
.topics-section {
    padding: 80px 0;
    background-color: #f2f2f2;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.topic-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.topic-icon {
    width: 60px;
    height: 60px;
    background-color: #E0F7FA;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.topic-icon svg {
    width: 30px;
    height: 30px;
    fill: #006064;
}

.topic-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #263238;
    margin-bottom: 15px;
}

.topic-description {
    font-size: 0.95rem;
    color: #607D8B;
    margin-bottom: 20px;
}

.topic-link {
    color: #006064;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.topic-link:hover {
    color: #00838F;
}

/* Experts Section */
.experts-section {
    padding: 80px 0;
}

.experts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.expert-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.expert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.expert-image {
    height: 250px;
    overflow: hidden;
}

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

.expert-content {
    padding: 25px;
    text-align: center;
}

.expert-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: #263238;
    margin-bottom: 5px;
}

.expert-title {
    font-size: 0.9rem;
    color: #006064;
    margin-bottom: 15px;
}

.expert-bio {
    font-size: 0.95rem;
    color: #607D8B;
    margin-bottom: 20px;
}

.expert-social {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-icon {
    width: 35px;
    height: 35px;
    background-color: #E0F7FA;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.social-icon:hover {
    background-color: #B2EBF2;
}

.social-icon svg {
    width: 18px;
    height: 18px;
    fill: #006064;
}

/* Newsletter Section */
.newsletter-section {
    padding: 80px 0;
    background-color: #E0F7FA;
    text-align: center;
}

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

.newsletter-content h2 {
    font-size: 2rem;
    color: #006064;
    margin-bottom: 15px;
}

.newsletter-content p {
    font-size: 1.1rem;
    color: #455A64;
    margin-bottom: 30px;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 15px;
    border: none;
    border-radius: 5px 0 0 5px;
    font-size: 1rem;
}

.newsletter-form button {
    background-color: #006064;
    color: white;
    border: none;
    padding: 0 25px;
    border-radius: 0 5px 5px 0;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.newsletter-form button:hover {
    background-color: #00838F;
}

/* Footer */
footer {
    background-color: #263238;
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #B2EBF2;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: #B0BEC5;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #37474F;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-bottom p {
    color: #78909C;
    font-size: 0.9rem;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: #B0BEC5;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

/* Responsive Styles */
@media (max-width: 992px) {
    .articles-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    nav.active {
        max-height: 300px;
    }
    
    nav ul {
        flex-direction: column;
        padding: 20px;
    }
    
    nav ul li {
        margin: 10px 0;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .articles-grid,
    .topics-grid,
    .experts-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input {
        border-radius: 5px;
        margin-bottom: 10px;
    }
    
    .newsletter-form button {
        border-radius: 5px;
        padding: 15px;
    }
}