/**
 * Business Finance Blog - Main Stylesheet
 * Professional Business Finance Theme
 * Mobile-First Responsive Design
 */

/* ========================================
   CSS Variables
   ======================================== */
:root {
    /* Colors - Professional Business Finance Palette */
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary: #059669;
    --secondary-dark: #047857;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --background: #f8fafc;
    --background-alt: #f1f5f9;
    --text: #1e293b;
    --text-secondary: #475569;
    --text-light: #64748b;
    --white: #ffffff;
    --border: #e2e8f0;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Typography */
    --font-heading: 'Inter', 'Segoe UI', system-ui, sans-serif;
    --font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;
    --font-h1: 2.75rem;
    --font-h2: 2.25rem;
    --font-h3: 1.875rem;
    --font-h4: 1.5rem;
    --font-h5: 1.25rem;
    --font-body: 1rem;
    --font-small: 0.875rem;
    --font-xs: 0.75rem;
    --line-height: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Layout */
    --container-width: 1280px;
    --container-narrow: 900px;
    --header-height: 72px;
    
    /* Effects */
    --border-radius-sm: 6px;
    --border-radius: 10px;
    --border-radius-lg: 16px;
    --transition-fast: all 0.2s ease;
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Responsive Typography */
@media (max-width: 768px) {
    :root {
        --font-h1: 2rem;
        --font-h2: 1.75rem;
        --font-h3: 1.5rem;
        --font-h4: 1.25rem;
        --font-h5: 1.125rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--font-body);
    line-height: var(--line-height);
    color: var(--text);
    background: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

button {
    font-family: inherit;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--text);
    letter-spacing: -0.02em;
}

h1 { font-size: var(--font-h1); }
h2 { font-size: var(--font-h2); }
h3 { font-size: var(--font-h3); font-weight: 600; }
h4 { font-size: var(--font-h4); font-weight: 600; }
h5 { font-size: var(--font-h5); font-weight: 600; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

strong {
    font-weight: 600;
    color: var(--text);
}

/* ========================================
   Layout
   ======================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

.main-content {
    min-height: calc(100vh - 200px);
}

/* ========================================
   Header
   ======================================== */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

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

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

.logo-image {
    height: 40px;
    width: auto;
    display: block;
    transition: var(--transition-fast);
}

.logo-image:hover {
    opacity: 0.85;
}

.logo h1 {
    font-size: 1.5rem;
    margin: 0;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (max-width: 768px) {
    .logo-image {
        height: 36px;
    }
    
    .logo h1 {
        font-size: 1.25rem;
    }
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    align-items: center;
}

.main-nav a {
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-small);
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.main-nav a:hover,
.main-nav a.active {
    background: var(--background-alt);
    color: var(--primary);
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.main-nav .dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--white);
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius);
    min-width: 220px;
    padding: var(--spacing-xs);
    z-index: 100;
    border: 1px solid var(--border);
}

@media (min-width: 969px) {
    .dropdown:hover .dropdown-menu {
        display: block;
        animation: dropdownFadeIn 0.2s ease;
    }
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-menu li {
    display: block;
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
}

.dropdown-menu a:hover {
    background: var(--background-alt);
}

/* Header Actions */
.header-actions {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.search-toggle,
.mobile-menu-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
}

.search-toggle:hover,
.mobile-menu-toggle:hover {
    background: var(--background-alt);
    color: var(--primary);
}

.mobile-menu-toggle {
    display: none;
}

/* Search Bar */
.search-bar {
    display: none;
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border);
    animation: searchSlideDown 0.3s ease;
}

@keyframes searchSlideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-bar.active {
    display: block;
}

.search-bar form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 600px;
    margin: 0 auto;
}

.search-bar input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
}

.search-bar button {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-fast);
}

.search-bar button:hover {
    background: var(--primary-dark);
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--border);
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

@media (max-width: 968px) {
    .hero-section {
        padding: var(--spacing-xl) 0;
        margin-bottom: var(--spacing-xl);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-image {
        order: 1;
    }
    
    .hero-text {
        order: 2;
    }
    
    .hero-image img {
        max-height: 380px;
    }
}

.hero-image {
    order: 2;
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    /*box-shadow: var(--shadow-lg);*/
}

.hero-image img {
    border-radius: var(--border-radius-lg);
    width: 100%;
    height: 100%;
    max-height: 450px;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: var(--transition);
}

.hero-image:hover img {
    transform: scale(1.03);
}

.hero-text {
    order: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: var(--font-small);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
}

.hero-text h1 {
    margin-bottom: var(--spacing-md);
    line-height: 1.15;
}

.hero-text p {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0 var(--spacing-lg);
    color: var(--text-light);
    font-size: var(--font-small);
}

.hero-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.hero-meta i {
    color: var(--primary);
}

@media (max-width: 768px) {
    .hero-text p {
        font-size: 1rem;
    }
    
    .hero-meta {
        gap: var(--spacing-sm);
        font-size: var(--font-xs);
    }
    
    .hero-image img {
        max-height: 320px;
    }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 13px 28px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
    cursor: pointer;
    border: none;
    font-size: var(--font-body);
    line-height: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(30, 64, 175, 0.4);
    color: var(--white);
}

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

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

@media (max-width: 768px) {
    .btn {
        padding: 11px 22px;
        font-size: var(--font-small);
    }
}

/* ========================================
   Posts Grid (Listicle Layout)
   ======================================== */
.posts-section {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

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

/* Listicle Grid - Featured First */
.posts-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Three Column Grid for Homepage */
.posts-grid-three-col {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 1024px) {
    .posts-grid-three-col {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .posts-grid-three-col {
        grid-template-columns: 1fr;
    }
}

/* Post Card - Modern Magazine Style */
.post-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
}

.posts-grid-three-col .post-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    gap: 0;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.post-image {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 200px;
}

.posts-grid-three-col .post-image {
    height: 220px;
    border-radius: 0;
}

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

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

.post-category {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: var(--font-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(30, 64, 175, 0.3);
}

.posts-grid-three-col .post-content {
    padding: var(--spacing-md);
    flex: 1;
}

.post-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 0;
}

.post-content h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
    line-height: 1.3;
}

.posts-grid-three-col .post-content h3 {
    font-size: 1.25rem;
}

.post-content h3 a {
    color: var(--text);
    transition: var(--transition-fast);
}

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

.post-content > p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-small);
    color: var(--text-light);
}

.posts-grid-three-col .post-meta {
    gap: var(--spacing-sm);
    font-size: var(--font-xs);
}

.post-meta > div {
    display: flex;
    align-items: center;
    gap: 6px;
}

.post-meta i {
    color: var(--primary);
    font-size: 0.875rem;
}

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

.read-more:hover {
    color: var(--primary-dark);
    gap: var(--spacing-sm);
}

.read-more i {
    font-size: 0.875rem;
}

/* Mobile Responsive - Vertical Cards */
@media (max-width: 768px) {
    .post-card {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: 0;
        border-radius: var(--border-radius);
    }
    
    .post-image {
        height: 200px;
        border-radius: 0;
    }
    
    .post-content {
        padding: var(--spacing-md);
    }
    
    .post-content h3 {
        font-size: 1.25rem;
    }
    
    .post-meta {
        gap: var(--spacing-sm);
        font-size: var(--font-xs);
    }
}

/* ========================================
   Related Posts Carousel
   ======================================== */
.related-posts-section {
    padding: var(--spacing-2xl) 0;
    background: var(--background);
    border-top: 1px solid var(--border);
}

.section-header-with-nav {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--spacing-lg);
}

.section-header-with-nav h2 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.875rem;
}

.section-header-with-nav p {
    color: var(--text-light);
    font-size: 1rem;
}

.carousel-nav-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.carousel-btn {
    width: 44px;
    height: 44px;
    border: 2px solid var(--border);
    background: var(--white);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    color: var(--text-secondary);
}

.carousel-btn:hover:not(:disabled) {
    border-color: var(--primary);
    background: var(--primary);
    color: var(--white);
}

.carousel-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    border-color: var(--border);
}

.related-posts-carousel-wrapper {
    position: relative;
    overflow: hidden;
}

.related-posts-carousel {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: var(--spacing-sm);
}

.related-posts-carousel::-webkit-scrollbar {
    display: none;
}

.related-post-card {
    flex: 0 0 calc(33.333% - var(--spacing-lg));
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.related-post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.related-post-image {
    display: block;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

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

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

.related-post-content h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.related-post-content h3 a {
    color: var(--text);
    transition: var(--transition-fast);
}

.related-post-content h3 a:hover {
    color: var(--primary);
}

.related-post-content p {
    color: var(--text-secondary);
    font-size: var(--font-small);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    flex: 1;
}

.related-post-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-xs);
    color: var(--text-light);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border);
}

.related-post-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.related-post-meta i {
    color: var(--primary);
}

@media (max-width: 1024px) {
    .related-post-card {
        flex: 0 0 calc(50% - var(--spacing-lg));
    }
}

@media (max-width: 640px) {
    .section-header-with-nav {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .related-post-card {
        flex: 0 0 calc(85% - var(--spacing-lg));
    }
}

/* ========================================
   Categories Section
   ======================================== */
.categories-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.categories-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--spacing-2xl);
}

.categories-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.categories-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.6;
}

.categories-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.category-showcase-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.category-showcase-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--text-light);
    transform: translateY(-2px);
}

.category-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.category-visual {
    position: relative;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    min-height: 100px;
}

.category-icon-wrapper {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: var(--white);
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.category-stats {
    display: flex;
    gap: var(--spacing-md);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-top: 0.25rem;
}

.category-info {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.category-header-card {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.category-header-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.3;
    letter-spacing: -0.01em;
    margin: 0;
}

.category-arrow {
    font-size: 1rem;
    color: var(--text-light);
    transition: var(--transition-fast);
    flex-shrink: 0;
    margin-left: 0.5rem;
}

.category-showcase-card:hover .category-arrow {
    color: var(--primary);
    transform: translateX(4px);
}

.category-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.category-meta {
    margin-top: auto;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--background-alt);
}

.explore-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: none;
    letter-spacing: -0.01em;
    transition: var(--transition-fast);
}

.category-showcase-card:hover .explore-link {
    gap: 0.75rem;
}

.explore-link i {
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

@media (max-width: 768px) {
    .categories-header h2 {
        font-size: 1.75rem;
    }
    
    .categories-header p {
        font-size: 1rem;
    }
    
    .categories-showcase {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 640px) {
    .categories-section {
        padding: var(--spacing-2xl) 0;
    }
    
    .category-visual {
        padding: var(--spacing-md);
        min-height: 80px;
    }
    
    .category-icon-wrapper {
        width: 44px;
        height: 44px;
        font-size: 1.25rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
}

/* ========================================
   Newsletter Section
   ======================================== */
.newsletter-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.newsletter-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.newsletter-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.newsletter-text h2 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.newsletter-text p {
    font-size: 1.125rem;
    opacity: 0.95;
    color: var(--white);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 550px;
    margin: var(--spacing-lg) auto 0;
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.newsletter-form input:focus {
    outline: none;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.newsletter-form .btn-primary {
    background: var(--white);
    color: var(--primary);
    padding: var(--spacing-md) var(--spacing-xl);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.newsletter-form .btn-primary:hover {
    background: var(--background);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
    .newsletter-section {
        padding: var(--spacing-xl) 0;
    }
    
    .newsletter-text p {
        font-size: 1rem;
    }
    
    .newsletter-form {
        flex-direction: column;
        max-width: 100%;
    }
    
    .newsletter-form .btn-primary {
        padding: var(--spacing-md);
    }
}

/* ========================================
   Pagination
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-2xl) 0;
    flex-wrap: wrap;
}

.pagination-btn,
.pagination-numbers a {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--white);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    font-weight: 500;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    min-width: 40px;
    justify-content: center;
}

.pagination-numbers {
    display: flex;
    gap: var(--spacing-xs);
}

.pagination-numbers a.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.pagination-numbers a:hover,
.pagination-btn:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.pagination-btn i {
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .pagination {
        gap: var(--spacing-xs);
    }
    
    .pagination-btn,
    .pagination-numbers a {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-small);
        min-width: 36px;
    }
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background: linear-gradient(180deg, #0f172a 0%, #020617 100%);
    color: #cbd5e1;
    padding: var(--spacing-3xl) 0 0;
    margin-top: var(--spacing-3xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
}

.footer-about {
    padding-right: var(--spacing-lg);
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo img {
    height: 45px;
    width: auto;
    opacity: 1;
}

.footer-column h3,
.footer-column h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
}

.footer-column p {
    color: #94a3b8;
    line-height: 1.7;
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: 0.875rem !important;
    color: #64748b !important;
    font-style: italic;
    margin-top: var(--spacing-xs) !important;
}

.footer-column ul {
    list-style: none;
}

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

.footer-column a {
    color: #cbd5e1;
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--white);
    padding-left: 4px;
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    color: #cbd5e1;
    font-size: 1rem;
    transition: var(--transition-fast);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-newsletter {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.footer-newsletter input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    border-radius: var(--border-radius);
}

.footer-newsletter input::placeholder {
    color: #94a3b8;
}

.footer-newsletter input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
}

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

.footer-newsletter button:hover {
    background: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--spacing-lg) 0;
    background: rgba(0, 0, 0, 0.2);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #64748b;
    font-size: 0.875rem;
}

.footer-bottom-content .copyright {
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-bottom-links a {
    color: #94a3b8;
    transition: var(--transition-fast);
}

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

@media (max-width: 968px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
    
    .footer-about {
        grid-column: 1 / -1;
        padding-right: 0;
    }
}

@media (max-width: 768px) {
    .site-footer {
        padding: var(--spacing-2xl) 0 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-about {
        text-align: center;
    }
    
    .footer-logo {
        display: flex;
        justify-content: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-newsletter {
        flex-direction: column;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-bottom-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
}

/* ========================================
   Back to Top Button
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(30, 64, 175, 0.3);
    transition: var(--transition);
    z-index: 999;
    font-size: 1.25rem;
}

.back-to-top:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(30, 64, 175, 0.4);
}

.back-to-top.show {
    display: flex;
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 48px;
        height: 48px;
    }
}

/* ========================================
   Responsive Design
   ======================================== */

/* Mobile Menu Overlay */
@media (max-width: 968px) {
    .main-nav  .dropdown-menu {
    position: static;
    width: 100%;
        
    }
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-md) 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
        max-height: calc(100vh - var(--header-height));
        overflow-y: auto;
    }
    
    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0;
        padding: 0 var(--spacing-md);
    }
    
    .main-nav li {
        width: 100%;
        border-bottom: 1px solid var(--border);
    }
    
    .main-nav li:last-child {
        border-bottom: none;
    }
    
    .main-nav a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: var(--spacing-md) var(--spacing-sm);
        width: 100%;
        font-size: 1rem;
        color: var(--text);
    }
    
    .dropdown > a {
        font-weight: 600;
    }
    
    .dropdown-menu {
        position: static;
        display: none;
        box-shadow: none;
        border: none;
        background: var(--background-alt);
        margin: 0;
        padding: var(--spacing-xs) 0;
        border-radius: var(--border-radius-sm);
        animation: mobileDropdownSlide 0.3s ease;
    }
    
    @keyframes mobileDropdownSlide {
        from {
            opacity: 0;
            max-height: 0;
        }
        to {
            opacity: 1;
            max-height: 500px;
        }
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
    }
    
    .dropdown-menu li {
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .dropdown-menu li:last-child {
        border-bottom: none;
    }
    
    .dropdown-menu a {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-small);
        color: var(--text-secondary);
        font-weight: 500;
        background: transparent;
    }
    
    .dropdown-menu a:hover {
        background: rgba(30, 64, 175, 0.05);
        color: var(--primary);
    }
    
    .dropdown > a i {
        transition: transform 0.3s ease;
        font-size: 0.875rem;
        color: var(--text-light);
    }
    
    .dropdown.active > a i {
        transform: rotate(180deg);
        color: var(--primary);
    }
    
    .dropdown.active > a {
        color: var(--primary);
        background: var(--background-alt);
    }
    
    .mobile-menu-toggle {
        display: block;
    }
}

/* Smooth Animations */
@media (prefers-reduced-motion: no-preference) {
    * {
        scroll-behavior: smooth;
    }
}

/* Focus States for Accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Loading State */
.loading {
    opacity: 0.6;
    pointer-events: none;
    filter: grayscale(0.5);
}