/* Duotone Dark Theme Variables */
:root {
    --primary-dark: #0f0f23;
    --primary-light: #1a1a3a;
    --secondary: #6366f1;
    --secondary-light: #818cf8;
    --secondary-dark: #4f46e5;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-accent: var(--secondary-light);
    --border: #2d2d4a;
    --background: var(--primary-dark);
    --surface: var(--primary-light);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header Styles */
.header {
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo a {
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.2s ease;
}

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

.logo-icon {
    font-size: 1.75rem;
    color: var(--secondary);
}

/* Search Styles */
.search-container {
    flex: 1;
    max-width: 300px;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--background);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

/* Main Content */
.main {
    flex: 1;
    padding: 3rem 0;
}

/* Blog Posts */
.blog-posts {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.post-item {
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
    transition: all 0.2s ease;
}

.post-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.post-item:hover {
    transform: translateY(-2px);
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.post-category {
    background-color: var(--secondary);
    color: var(--primary-dark);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.post-title {
    margin-bottom: 1rem;
}

.post-title a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
    transition: color 0.2s ease;
}

.post-title a:hover {
    color: var(--secondary-light);
}

.post-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1rem;
    line-height: 1.7;
}

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

.tag {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--secondary-light);
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* No Results */
.no-results {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Footer */
.footer {
    background-color: var(--surface);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    margin-top: auto;
}

.footer p {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .search-container {
        max-width: 100%;
    }

    .post-title a {
        font-size: 1.25rem;
    }

    .post-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .main {
        padding: 2rem 0;
    }

    .blog-posts {
        gap: 2rem;
    }
}

/* Focus and Accessibility */
a:focus-visible,
input:focus-visible {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

/* Animation for search results */
.post-item.hidden {
    display: none;
}

.post-item.show {
    animation: fadeIn 0.3s ease-in-out;
}

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

/* Pagination Styles */
.pagination {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.pagination-info {
    text-align: center;
    margin-bottom: 2rem;
}

.pagination-stats {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.pagination-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.pagination-link {
    padding: 0.75rem 1.25rem;
    color: var(--secondary-light);
    text-decoration: none;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    background-color: var(--surface);
    transition: all 0.2s ease;
    font-weight: 500;
    white-space: nowrap;
}

.pagination-link:hover:not(.disabled) {
    background-color: var(--secondary);
    border-color: var(--secondary);
    color: var(--primary-dark);
    transform: translateY(-1px);
}

.pagination-link.disabled {
    color: var(--text-secondary);
    cursor: not-allowed;
    opacity: 0.5;
}

.pagination-numbers {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin: 0 1rem;
}

.pagination-number {
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: 0.375rem;
    background-color: var(--surface);
    transition: all 0.2s ease;
    min-width: 2.5rem;
    text-align: center;
    font-weight: 500;
}

.pagination-number:hover {
    background-color: var(--secondary);
    border-color: var(--secondary);
    color: var(--primary-dark);
}

.pagination-number.current {
    background-color: var(--secondary);
    color: var(--primary-dark);
    border-color: var(--secondary);
    font-weight: 600;
}

.pagination-ellipsis {
    color: var(--text-secondary);
    padding: 0.5rem 0.25rem;
    font-weight: 500;
}

/* Responsive Pagination */
@media (max-width: 768px) {
    .pagination-links {
        flex-direction: column;
        gap: 1rem;
    }
    
    .pagination-numbers {
        margin: 0;
        justify-content: center;
    }
    
    .pagination-link {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    .pagination-number {
        padding: 0.375rem 0.625rem;
        font-size: 0.875rem;
        min-width: 2.25rem;
    }
}