/* Main Styles for Reference Book - Health Website */

:root {
    --primary-green: #28a745;
    --primary-green-dark: #218838;
    --light-green: #d4edda;
    --accent-orange: #fd7e14;
    --accent-orange-dark: #e8590c;
    --text-dark: #333333;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --white: #ffffff;
}

/* Global Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    background-color: var(--white);
}

a {
    color: var(--primary-green);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-green-dark);
    text-decoration: none;
}

/* Navigation */
.navbar-brand {
    font-size: 1.5rem;
}

.navbar-brand .text-primary {
    color: var(--primary-green) !important;
}

.navbar-light .navbar-nav .nav-link {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--light-green) 0%, var(--white) 100%);
    padding: 4rem 0;
}

.min-vh-60 {
    min-height: 60vh;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-green);
    border-color: var(--primary-green);
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--primary-green-dark);
    border-color: var(--primary-green-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.btn-outline-primary {
    color: var(--primary-green);
    border-color: var(--primary-green);
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background-color: var(--primary-green);
    border-color: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
}

/* Cards */
.article-card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
    overflow: hidden;
}

.article-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.article-card img {
    height: 200px;
    object-fit: cover;
    width: 100%;
}

.article-card .card-title a {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 1.1rem;
}

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

/* Badges */
.badge-primary {
    background-color: var(--primary-green);
    padding: 0.4rem 0.8rem;
    font-weight: 500;
    font-size: 0.75rem;
}

.badge-secondary {
    background-color: var(--accent-orange);
    padding: 0.4rem 0.8rem;
    font-weight: 500;
    font-size: 0.75rem;
}

/* Newsletter Section */
.newsletter-section {
    background: linear-gradient(135deg, var(--primary-green) 0%, #20c997 100%);
    color: var(--white);
}

.newsletter-section h2 {
    color: var(--white);
}

.newsletter-section .lead {
    color: rgba(255, 255, 255, 0.9);
}

.newsletter-form .form-control {
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.newsletter-form .btn-primary {
    background-color: var(--accent-orange);
    border-color: var(--accent-orange);
}

.newsletter-form .btn-primary:hover {
    background-color: var(--accent-orange-dark);
    border-color: var(--accent-orange-dark);
}

/* Trust Section */
.trust-icon {
    font-size: 3rem;
    color: var(--primary-green);
}

/* Article Content */
.article-hero {
    height: 400px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    margin-bottom: 2rem;
    border-radius: 8px;
    overflow: hidden;
}

.article-hero-overlay {
    background: rgba(0, 0, 0, 0.4);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-content h2 {
    color: var(--text-dark);
    font-weight: 700;
    margin-top: 2rem;
}

.article-content h3 {
    color: var(--text-dark);
    font-weight: 600;
}

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

/* Social Share Buttons */
.social-share {
    display: flex;
    gap: 0.75rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.social-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    color: var(--white);
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    color: var(--white);
}

.social-share-btn.facebook {
    background-color: #1877f2;
}

.social-share-btn.twitter {
    background-color: #1da1f2;
}

.social-share-btn.linkedin {
    background-color: #0a66c2;
}

.social-share-btn.email {
    background-color: #6c757d;
}

/* Related Articles */
.related-articles .card {
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.related-articles .card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.related-articles .card-title a {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 1rem;
}

.related-articles .card-title a:hover {
    color: var(--primary-green);
}

/* Health Disclaimer Box */
.health-disclaimer {
    background-color: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 1.25rem;
    margin: 2rem 0;
    border-radius: 4px;
}

.health-disclaimer strong {
    color: #856404;
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: rgba(255, 255, 255, 0.8);
}

footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--primary-green) !important;
}

footer .text-primary {
    color: var(--primary-green) !important;
}

/* Contact Form */
.form-control:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

/* Articles List Page */
.articles-grid .card {
    margin-bottom: 2rem;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--light-green) 0%, var(--white) 100%);
}

/* Image Placeholders */
img[onerror] {
    background-color: var(--light-green);
    min-height: 200px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 2rem 0;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .article-content {
        font-size: 1rem;
    }
    
    .btn-lg {
        padding: 0.5rem 1.5rem;
        font-size: 1rem;
    }

    .article-hero {
        height: 250px;
    }

    .social-share {
        flex-direction: column;
    }

    .social-share-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Print Styles */
@media print {
    .navbar,
    footer,
    .btn,
    .related-articles,
    .social-share,
    .newsletter-section {
        display: none;
    }
    
    .article-content {
        font-size: 12pt;
    }
}