/* 
   Vitalidade Natural Blog - Main Stylesheet
   Author: Manus AI
   Date: June 2025
*/

/* ===== VARIABLES ===== */
:root {
    /* Colors based on Protein Plus palette */
    --primary-color: #4CAF50;
    --secondary-color: #388E3C;
    --accent-color: #8BC34A;
    --light-color: #F1F8E9;
    --dark-color: #1B5E20;
    --text-color: #333333;
    --text-light: #666666;
    --white: #FFFFFF;
    --black: #000000;
    --gray-light: #F5F5F5;
    --gray-medium: #E0E0E0;
    --gray-dark: #9E9E9E;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    /* Box Shadow */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1rem;
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

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

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

a:hover {
    color: var(--secondary-color);
}

ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, .btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

button:hover, .btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--accent-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

/* ===== LAYOUT ===== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col {
    padding: 0 15px;
    flex: 1;
    min-width: 0;
}

/* Column widths */
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* Spacing utilities */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.py-2 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-3 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-4 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-5 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.px-1 { padding-left: var(--spacing-xs); padding-right: var(--spacing-xs); }
.px-2 { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-3 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-4 { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.px-5 { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }

/* ===== HEADER ===== */
.site-header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

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

.site-logo img {
    height: 40px;
    margin-right: var(--spacing-sm);
}

.site-logo h1 {
    font-size: 1.5rem;
    margin-bottom: 0;
    color: var(--primary-color);
}

.main-navigation ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-navigation li {
    margin-left: var(--spacing-lg);
    position: relative;
}

.main-navigation a {
    color: var(--text-color);
    font-weight: 500;
    font-family: var(--font-primary);
    position: relative;
}

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

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-normal);
}

.main-navigation a:hover::after,
.main-navigation a.active::after {
    width: 100%;
}

.header-search {
    position: relative;
    margin-left: var(--spacing-lg);
}

.search-form {
    display: flex;
    align-items: center;
}

.search-input {
    padding: 0.5rem 1rem;
    border: 1px solid var(--gray-medium);
    border-radius: var(--border-radius-md);
    font-family: var(--font-secondary);
    width: 200px;
    transition: all var(--transition-normal);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
    width: 250px;
}

.search-button {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem;
    margin-left: -40px;
}

.search-button:hover {
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle:hover {
    color: var(--primary-color);
}

.social-icons {
    display: flex;
    align-items: center;
}

.social-icons a {
    color: var(--text-color);
    margin-left: var(--spacing-md);
    font-size: 1.2rem;
    transition: all var(--transition-normal);
}

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

/* ===== HERO SECTION ===== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 8rem 0 5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

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

.hero-description {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.hero-image {
    margin-top: var(--spacing-xl);
    position: relative;
}

.hero-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    margin: 0 auto;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/pattern.svg');
    background-size: cover;
    opacity: 0.1;
    z-index: 1;
}

/* ===== CATEGORIES SECTION ===== */
.categories-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--light-color);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title h2 {
    position: relative;
    display: inline-block;
    padding-bottom: var(--spacing-sm);
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

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

.category-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-color);
    color: var(--primary-color);
    font-size: 3rem;
}

.category-content {
    padding: var(--spacing-lg);
    text-align: center;
}

.category-title {
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.category-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

/* ===== RECENT POSTS SECTION ===== */
.recent-posts-section {
    padding: var(--spacing-xxl) 0;
}

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

.post-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

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

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

.post-content {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.post-meta {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-light);
}

.post-category {
    background-color: var(--light-color);
    color: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    margin-right: var(--spacing-sm);
    font-weight: 500;
}

.post-date {
    display: flex;
    align-items: center;
}

.post-date i {
    margin-right: 0.25rem;
}

.post-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.post-excerpt {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.post-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.read-more {
    font-weight: 500;
    display: flex;
    align-items: center;
}

.read-more i {
    margin-left: 0.25rem;
    transition: transform var(--transition-fast);
}

.read-more:hover i {
    transform: translateX(3px);
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.post-tag {
    font-size: 0.75rem;
    color: var(--text-light);
    background-color: var(--gray-light);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.post-tag:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* ===== SIDEBAR ===== */
.sidebar {
    position: sticky;
    top: 100px;
}

.widget {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.widget-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--light-color);
    position: relative;
}

.widget-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.widget-popular-posts .post-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--gray-light);
}

.widget-popular-posts .post-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.widget-popular-posts .post-thumb {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

.widget-popular-posts .post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.widget-popular-posts .post-info {
    flex-grow: 1;
}

.widget-popular-posts .post-title {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.widget-popular-posts .post-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

.widget-categories ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.widget-categories li {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-light);
}

.widget-categories li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.widget-categories a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-color);
    transition: all var(--transition-fast);
}

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

.widget-categories .category-count {
    background-color: var(--light-color);
    color: var(--primary-color);
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.widget-categories a:hover .category-count {
    background-color: var(--primary-color);
    color: var(--white);
}

.widget-tags .tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.widget-tags .tag {
    font-size: 0.875rem;
    color: var(--text-light);
    background-color: var(--gray-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.widget-tags .tag:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* ===== SINGLE POST ===== */
.single-post {
    padding: 8rem 0 var(--spacing-xxl);
}

.post-header {
    margin-bottom: var(--spacing-xl);
}

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

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

.post-header .post-meta {
    margin-bottom: var(--spacing-md);
}

.post-header .post-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

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

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

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

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

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

.post-content li {
    margin-bottom: var(--spacing-xs);
}

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

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

.post-content blockquote p:last-child {
    margin-bottom: 0;
}

.post-content code {
    background-color: var(--gray-light);
    padding: 0.2rem 0.4rem;
    border-radius: var(--border-radius-sm);
    font-family: monospace;
}

.post-content pre {
    background-color: var(--gray-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
}

.post-content pre code {
    background-color: transparent;
    padding: 0;
}

.post-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-medium);
}

.post-tags {
    margin-bottom: var(--spacing-lg);
}

.post-tags-title {
    font-weight: 600;
    margin-right: var(--spacing-sm);
}

.post-share {
    margin-top: var(--spacing-lg);
}

.post-share-title {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

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

.share-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.2rem;
    transition: all var(--transition-normal);
}

.share-button:hover {
    transform: translateY(-3px);
}

.share-facebook {
    background-color: #3b5998;
}

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

.share-pinterest {
    background-color: #bd081c;
}

.share-whatsapp {
    background-color: #25d366;
}

/* ===== COMMENTS SECTION ===== */
.comments-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-medium);
}

.comments-title {
    margin-bottom: var(--spacing-lg);
}

.comment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comment {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-light);
}

.comment:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.comment-body {
    display: flex;
}

.comment-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

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

.comment-content {
    flex-grow: 1;
}

.comment-meta {
    margin-bottom: var(--spacing-sm);
}

.comment-author {
    font-weight: 600;
    margin-right: var(--spacing-sm);
}

.comment-date {
    font-size: 0.875rem;
    color: var(--text-light);
}

.comment-text {
    margin-bottom: var(--spacing-sm);
}

.comment-reply {
    font-weight: 500;
    color: var(--primary-color);
    cursor: pointer;
}

.comment-form {
    margin-top: var(--spacing-xl);
}

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

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-medium);
    border-radius: var(--border-radius-md);
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* ===== RELATED POSTS ===== */
.related-posts {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-medium);
}

.related-posts-title {
    margin-bottom: var(--spacing-lg);
}

/* ===== CATEGORY PAGE ===== */
.category-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 8rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.category-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.category-description {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    opacity: 0.9;
}

.category-filter {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    margin-top: -2rem;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 2;
}

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

.filter-item {
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-item:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.filter-item.active {
    background-color: var(--primary-color);
    color: var(--white);
}

/* ===== FOOTER ===== */
.site-footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.footer-logo img {
    height: 40px;
    margin-right: var(--spacing-sm);
}

.footer-logo h2 {
    font-size: 1.5rem;
    margin-bottom: 0;
    color: var(--white);
}

.footer-description {
    opacity: 0.8;
    margin-bottom: var(--spacing-md);
}

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

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1.2rem;
    transition: all var(--transition-normal);
}

.footer-social a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-widget-title {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.footer-widget-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
}

.footer-links a:hover {
    color: var(--white);
    padding-left: var(--spacing-xs);
}

.footer-links a i {
    margin-right: var(--spacing-xs);
    color: var(--primary-color);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.footer-contact-icon {
    color: var(--primary-color);
    margin-right: var(--spacing-sm);
    margin-top: 0.25rem;
}

.footer-contact-text {
    opacity: 0.8;
}

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

.footer-copyright {
    opacity: 0.8;
    font-size: 0.875rem;
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 1200px) {
    html {
        font-size: 15px;
    }
    
    .container {
        max-width: 960px;
    }
}

@media (max-width: 992px) {
    html {
        font-size: 14px;
    }
    
    .container {
        max-width: 720px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    
    .sidebar {
        margin-top: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    .header-container {
        position: relative;
    }
    
    .main-navigation {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: var(--shadow-md);
        padding: var(--spacing-md);
        display: none;
    }
    
    .main-navigation.active {
        display: block;
    }
    
    .main-navigation ul {
        flex-direction: column;
    }
    
    .main-navigation li {
        margin: 0 0 var(--spacing-sm) 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .header-search {
        margin-left: 0;
    }
    
    .search-input {
        width: 150px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
    .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
    
    .posts-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .post-header .post-title {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .posts-grid {
        grid-template-columns: 1fr;
    }
    
    .col-xs-12 { flex: 0 0 100%; max-width: 100%; }
    
    .comment-body {
        flex-direction: column;
    }
    
    .comment-avatar {
        margin-bottom: var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}