/* style.css - Biomeditech Blog Frontend */
:root {
    /* Cores principais */
    --primary-dark: #0A2647;
    --primary-medium: #1B4F8B;
    --primary-light: #2C7DA0;
    --primary-gradient: linear-gradient(135deg, #0A2647 0%, #2C7DA0 100%);
    
    /* Cores neutras */
    --white: #FFFFFF;
    --gray-50: #F8F9FA;
    --gray-100: #F1F3F5;
    --gray-200: #E9ECEF;
    --gray-300: #DEE2E6;
    --gray-400: #CED4DA;
    --gray-500: #ADB5BD;
    --gray-600: #6C757D;
    --gray-700: #495057;
    --gray-800: #343A40;
    --gray-900: #212529;
    
    /* Cores de apoio */
    --success: #28A745;
    --danger: #DC3545;
    --warning: #FFC107;
    --info: #17A2B8;
    
    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    
    /* Tipografia */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    
    /* Sombras */
    --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);
    
    /* Bordas */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-secondary);
    color: var(--gray-800);
    line-height: 1.6;
    background-color: var(--white);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* 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; }

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

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

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--gray-200);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-img {
    height: 40px;
    width: auto;
}

.main-nav ul {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.main-nav a {
    color: var(--gray-700);
    font-weight: 500;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: var(--primary-medium);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: var(--primary-gradient);
    color: var(--white);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--white);
}

.hero p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.hero-search {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    gap: var(--spacing-xs);
}

.hero-search input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 1rem;
}

.hero-search button {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--white);
    color: var(--primary-dark);
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.hero-search button:hover {
    transform: translateY(-2px);
}

/* Section Title */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-sm);
}

/* Featured Posts */
.featured-posts {
    padding: var(--spacing-2xl) 0;
    background: var(--gray-50);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.featured-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.featured-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.featured-image {
    height: 220px;
    overflow: hidden;
}

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

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

.featured-content {
    padding: var(--spacing-md);
}

.post-category {
    display: inline-block;
    background: var(--primary-gradient);
    color: var(--white);
    padding: 4px 12px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.featured-content h3 {
    margin-bottom: var(--spacing-xs);
}

.featured-content h3 a {
    color: var(--gray-800);
}

.featured-content h3 a:hover {
    color: var(--primary-medium);
}

/* Main Content */
.main-content {
    padding: var(--spacing-2xl) 0;
}

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

/* Posts List */
.posts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.post-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-md);
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.post-item:hover {
    transform: translateX(4px);
}

.post-thumbnail {
    height: 150px;
    overflow: hidden;
    border-radius: var(--border-radius-md);
}

.post-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-meta-top {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.post-date {
    color: var(--gray-600);
    font-size: 0.875rem;
}

.post-excerpt h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.post-excerpt h2 a {
    color: var(--gray-800);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-medium);
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

.read-more i {
    transition: transform 0.3s ease;
}

.read-more:hover i {
    transform: translateX(4px);
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.sidebar-widget {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}

.sidebar-widget h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--gray-200);
}

.categories-list {
    list-style: none;
}

.categories-list li {
    margin-bottom: var(--spacing-xs);
}

.categories-list a {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    color: var(--gray-700);
}

.categories-list a:hover {
    color: var(--primary-medium);
    padding-left: var(--spacing-xs);
}

.categories-list span {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.recent-posts {
    list-style: none;
}

.recent-posts li {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.recent-posts li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.recent-posts h4 {
    font-size: 0.875rem;
    margin-bottom: 4px;
}

.recent-posts .post-date {
    font-size: 0.75rem;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.newsletter-form input {
    padding: var(--spacing-sm);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
}

.newsletter-form button {
    padding: var(--spacing-sm);
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
}

.btn-outline {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px solid var(--primary-medium);
    border-radius: var(--border-radius-md);
    color: var(--primary-medium);
    font-weight: 600;
    text-align: center;
    margin-top: var(--spacing-sm);
}

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

/* Single Post */
.single-post {
    padding: var(--spacing-xl) 0;
}

.post-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.post-header h1 {
    font-size: 2.5rem;
    margin: var(--spacing-sm) 0;
}

.post-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    color: var(--gray-600);
    font-size: 0.875rem;
}

.post-meta i {
    margin-right: 4px;
}

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

.post-featured-image img {
    width: 100%;
    height: auto;
}

.post-content-wrapper {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.post-content {
    font-size: 1.125rem;
    line-height: 1.8;
}

.post-content h2 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.post-content h3 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.post-content p {
    margin-bottom: var(--spacing-md);
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-md);
    margin: var(--spacing-md) 0;
}

.post-content blockquote {
    border-left: 4px solid var(--primary-medium);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    font-style: italic;
    color: var(--gray-600);
}

.post-content ul, .post-content ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gray-100);
    color: var(--gray-700);
    transition: all 0.3s ease;
}

.share-btn.facebook:hover { background: #1877f2; color: white; }
.share-btn.twitter:hover { background: #1da1f2; color: white; }
.share-btn.linkedin:hover { background: #0077b5; color: white; }
.share-btn.whatsapp:hover { background: #25d366; color: white; }

/* Related Posts */
.related-posts {
    padding: var(--spacing-xl) 0;
    background: var(--gray-50);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.related-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.related-image {
    height: 160px;
    overflow: hidden;
}

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

.related-content {
    padding: var(--spacing-md);
}

.related-content h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xl);
}

.page-link {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-md);
    color: var(--gray-700);
    transition: all 0.3s ease;
}

.page-link:hover,
.page-link.active {
    background: var(--primary-gradient);
    color: var(--white);
    border-color: transparent;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-info h3 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

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

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    transition: all 0.3s ease;
}

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

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

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

.footer-links a {
    color: var(--gray-400);
}

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

.footer-contact i {
    width: 24px;
    margin-right: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
    }
    
    .main-nav.active {
        display: block;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-search {
        flex-direction: column;
    }
    
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .post-item {
        grid-template-columns: 1fr;
    }
    
    .post-thumbnail {
        height: 200px;
    }
    
    .post-content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    .post-header h1 {
        font-size: 1.75rem;
    }
    
    .post-meta {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero h1 {
        font-size: 1.5rem;
    }
}