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

:root {
    /* Color Palette - Warm & Neutral Tones */
    --color-primary: #2c3e50;
    --color-secondary: #34495e;
    --color-accent: #e67e22;
    --color-accent-hover: #d35400;
    
    --color-text: #2c3e50;
    --color-text-light: #7f8c8d;
    --color-text-lighter: #95a5a6;
    
    --color-bg: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-bg-lighter: #ecf0f1;
    
    --color-border: #e0e6e8;
    --color-shadow: rgba(0, 0, 0, 0.08);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px var(--color-shadow);
    --shadow-md: 0 4px 12px var(--color-shadow);
    --shadow-lg: 0 8px 24px var(--color-shadow);
}

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

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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);
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--color-text-light);
    line-height: 1.8;
}

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

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

/* ===================================
   Layout & Containers
   =================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-small {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.98);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand .logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.nav-brand .logo:hover {
    color: var(--color-accent);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

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

.nav-link {
    font-weight: 500;
    color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent);
    background-color: rgba(230, 126, 34, 0.1);
}

.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: none;
    border: 1px solid var(--color-border);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 500;
}

.language-switcher:hover {
    border-color: var(--color-accent);
    background-color: var(--color-bg-light);
}

.lang-option {
    color: var(--color-text-lighter);
    transition: color var(--transition-fast);
}

.lang-option.active {
    color: var(--color-accent);
}

.lang-divider {
    color: var(--color-border);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    transition: all var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ecf0f1 100%);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-accent);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: white;
}

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

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

.btn-block {
    display: block;
    width: 100%;
}

/* ===================================
   Sections
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
}

.featured-posts,
.blog-posts {
    padding: var(--spacing-xxl) 0;
}

.page-header {
    padding: var(--spacing-xxl) 0 var(--spacing-xl) 0;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ecf0f1 100%);
}

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

.page-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
}

/* ===================================
   Blog Posts Grid
   =================================== */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.post-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.post-card-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

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

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

.post-card-category {
    color: var(--color-accent);
    font-weight: 500;
}

.post-card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.post-card-excerpt {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.post-card-link {
    color: var(--color-accent);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===================================
   Blog Filter
   =================================== */
.blog-filter {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-bg-light);
}

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

.filter-tab {
    padding: 0.75rem 1.5rem;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.filter-tab.active {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

/* ===================================
   Post Article
   =================================== */
.post-article {
    padding: var(--spacing-xl) 0;
}

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

.post-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.post-category {
    color: var(--color-accent);
    font-weight: 600;
}

.post-divider {
    color: var(--color-text-lighter);
}

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

.post-author {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.author-name {
    font-weight: 500;
    color: var(--color-text);
}

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

.post-image {
    width: 100%;
    height: auto;
    display: block;
}

.post-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-xxl);
}

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

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

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

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

.post-body blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    color: var(--color-text-light);
}

.post-footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
    margin-bottom: var(--spacing-xl);
}

.post-share h3 {
    margin-bottom: var(--spacing-md);
}

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

.share-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text);
}

.share-btn:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
    transform: translateY(-2px);
}

/* ===================================
   Comments Section
   =================================== */
.comments-section {
    margin-top: var(--spacing-xxl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

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

.comment-form {
    background-color: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.comment {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-light);
    border-radius: var(--radius-lg);
}

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

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

.comment-text {
    color: var(--color-text);
}

/* ===================================
   Forms
   =================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background-color: white;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.1);
}

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

/* ===================================
   About Section
   =================================== */
.about-preview {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-bg-light);
}

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

.about-preview-text h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.about-preview-text p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.about-preview-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-section {
    padding: var(--spacing-xxl) 0;
}

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

.about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-text h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.about-story,
.about-interests,
.about-connect {
    margin-bottom: var(--spacing-xxl);
}

.interests-list {
    list-style: none;
    display: grid;
    gap: var(--spacing-sm);
}

.interests-list li {
    padding-left: var(--spacing-lg);
    position: relative;
}

.interests-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* ===================================
   Contact Section
   =================================== */
.contact-section {
    padding: var(--spacing-xxl) 0;
}

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

.contact-info h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.contact-details {
    margin-top: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.contact-item svg {
    flex-shrink: 0;
    color: var(--color-accent);
    margin-top: 4px;
}

.contact-item h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--color-primary);
}

.contact-item a {
    font-size: 1rem;
    color: var(--color-text-light);
}

.contact-form-wrapper {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.form-success {
    text-align: center;
    padding: var(--spacing-xl);
}

.form-success svg {
    color: #27ae60;
    margin-bottom: var(--spacing-md);
}

.form-success h3 {
    color: #27ae60;
    margin-bottom: var(--spacing-sm);
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-primary);
    color: white;
    margin-top: var(--spacing-xxl);
}

.footer-content {
    text-align: center;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-accent);
    transform: translateY(-2px);
    color: white;
}

.footer-text {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}