/* Base Styles */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #6366f1;
    --accent: #3b82f6;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --background: #f8fafc;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 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);
    --badge-bg: #2563eb;
    --badge-text: #ffffff;
    --bg-light: #f8fafc;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Top Navigation */
.top-nav {
    background: var(--card-bg);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-left .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-container {
    display: flex;
    align-items: center;
    background: var(--background);
    border-radius: 0.5rem;
    padding: 0.5rem;
    border: 1px solid var(--border);
}

.search-container input {
    border: none;
    background: none;
    padding: 0.5rem;
    width: 200px;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.search-container input:focus {
    outline: none;
}

.search-btn {
    background: none;
    border: none;
    color: var(--secondary);
    cursor: pointer;
    padding: 0.5rem;
}

.view-toggle {
    display: flex;
    gap: 0.5rem;
}

.view-toggle button {
    background: none;
    border: 1px solid var(--border);
    color: var(--secondary);
    padding: 0.5rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
}

.view-toggle button.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Blog Hero Section */
.blog-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.1));
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.blog-hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 3rem;
    opacity: 0.95;
}

.category-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
    background: white;
    color: var(--primary);
}

/* Blog Section */
.blog-section {
    padding: 4rem 0;
}

.blog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.header-left h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.header-left p {
    color: var(--text-secondary);
}

.sort-options select {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    background: var(--card-bg);
    cursor: pointer;
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

.blog-card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 320px;
    background-color: var(--card-bg);
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    overflow: hidden;
    padding-top: 0.5rem;
    height: 100%;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0.5rem;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 0.5rem 0.5rem 0 0;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.2);
}

.blog-badge {
    position: absolute;
    top: 1rem;
    right: 1.75rem;
    background-color: var(--badge-bg);
    color: var(--badge-text);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    border-radius: 2rem;
    box-shadow: var(--shadow-sm);
    z-index: 1;
}

.blog-content {
    padding: 2.5rem 1.75rem 1.75rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    position: relative;
}

.blog-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.4;
    transition: color 0.3s ease;
    padding-right: 3rem;
}

.blog-card:hover .blog-title {
    color: var(--primary);
}

.blog-excerpt {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    line-clamp: 4;
    -webkit-box-orient: vertical;
    box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
}

.blog-card-icon {
    font-size: 1.25rem;
    color: var(--primary);
    margin-right: 0.75rem;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.blog-card:hover .blog-card-icon {
    opacity: 1;
}

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

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    padding-bottom: 0.25rem;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.read-more::after {
    content: '\f061';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.75rem;
    transition: transform 0.3s ease;
}

.read-more:hover {
    color: var(--primary-dark);
    border-bottom-color: var(--primary-dark);
}

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

.blog-meta {
    display: flex;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.blog-date,
.blog-read-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* List View */
.blog-grid.list-view {
    grid-template-columns: 1fr;
}

.blog-grid.list-view .blog-card {
    flex-direction: row;
    padding-top: 0;
    align-items: stretch;
}

.blog-grid.list-view .blog-card::before {
    width: 0.5rem;
    height: auto;
    top: 0;
    bottom: 0;
    right: auto;
    border-radius: 0.5rem 0 0 0.5rem;
}

.blog-grid.list-view .blog-content {
    padding: 1.75rem;
    flex: 1;
}

.blog-grid.list-view .blog-badge {
    top: 1.25rem;
    right: 1.25rem;
}

/* Pagination Styles */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
    padding: 1rem 0;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.page-link:hover {
    color: var(--primary);
    border-color: var(--primary);
    background-color: rgba(37, 99, 235, 0.05);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.page-link.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    pointer-events: none;
}

.page-dots {
    color: var(--text-secondary);
    padding: 0 0.5rem;
    user-select: none;
}

.page-link.next {
    padding: 0;
    width: 2.5rem;
    font-size: 0.75rem;
}

.page-link.next:hover {
    transform: translateY(-1px) translateX(2px);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
        gap: 2rem;
    }
}

@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .blog-hero h1 {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-right {
        width: 100%;
        justify-content: space-between;
    }
    
    .search-container {
        flex: 1;
        margin-right: 1rem;
    }
    
    .search-container input {
        width: 100%;
    }
    
    .blog-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1.5rem;
    }
    
    .blog-title {
        padding-right: 0;
        margin-top: 1.5rem;
    }
    
    .blog-badge {
        top: 1rem;
        right: 1rem;
    }
    
    .blog-grid.list-view .blog-card {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .blog-hero {
        padding: 4rem 1rem;
    }
    
    .blog-hero h1 {
        font-size: 2.5rem;
    }
    
    .category-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
    }
    
    .pagination {
        gap: 0.25rem;
    }
    
    .page-link {
        min-width: 2.25rem;
        height: 2.25rem;
        padding: 0 0.5rem;
        font-size: 0.8125rem;
    }
}