/* ======================================
   Krajewski Cloud - Dark Theme CSS
   Domain: krajewski.cloud
   ====================================== */

/* --- CSS Variables --- */
:root {
    --bg-primary: #0d1117;
    --bg-card: #161b22;
    --bg-secondary: #1c2129;
    --bg-hover: #21262d;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-blue: #0078d4;
    --accent-blue-hover: #1f8fff;
    --accent-blue-10: rgba(0, 120, 212, 0.1);
    --accent-blue-20: rgba(0, 120, 212, 0.2);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    --radius: 8px;
    --max-width: 1152px;
    --transition: 150ms ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: inherit;
    text-decoration: none;
}

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

.hidden { display: none !important; }

/* --- Container --- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 16px;
}

/* --- Header --- */
.site-header {
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-card);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.site-logo:hover .site-title {
    color: var(--accent-blue);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    background-color: var(--accent-blue);
    color: #fff;
    flex-shrink: 0;
}

.logo-icon-small {
    width: 32px;
    height: 32px;
}

.logo-image {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    object-fit: contain;
}

.site-title-wrap {
    display: flex;
    flex-direction: column;
}

.site-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    transition: color var(--transition);
}

.site-subtitle {
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

/* --- Navigation --- */
.main-nav {
    display: none;
    align-items: center;
    gap: 4px;
}

.nav-link {
    display: block;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background-color var(--transition), color var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color var(--transition), color var(--transition);
}

.mobile-menu-toggle:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.mobile-nav {
    border-top: 1px solid var(--border-color);
    padding: 8px 0 16px;
}

.mobile-nav-link {
    display: block;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background-color var(--transition), color var(--transition);
}

.mobile-nav-link:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

@media (min-width: 768px) {
    .main-nav { display: flex; }
    .mobile-menu-toggle { display: none; }
}

/* --- Main Content --- */
.site-main {
    flex: 1;
}

.site-main > .container {
    padding-top: 32px;
    padding-bottom: 32px;
}

/* --- Blog Layout (content + sidebar) --- */
.blog-layout {
    display: grid;
    gap: 32px;
}

@media (min-width: 1024px) {
    .blog-layout {
        grid-template-columns: 1fr 280px;
    }
}

.sidebar-wrap {
    display: none;
}

@media (min-width: 1024px) {
    .sidebar-wrap {
        display: block;
    }
    .sidebar-wrap > .sidebar {
        position: sticky;
        top: 32px;
    }
}

/* --- Featured Post --- */
.featured-section {
    margin-bottom: 40px;
}

.featured-post {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--bg-card);
    overflow: hidden;
    transition: border-color var(--transition);
}

.featured-post:hover {
    border-color: var(--accent-blue-20);
}

.featured-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.featured-grid {
    display: grid;
}

@media (min-width: 768px) {
    .featured-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.featured-image-wrap {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

@media (min-width: 768px) {
    .featured-image-wrap {
        aspect-ratio: auto;
        min-height: 320px;
    }
}

.featured-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 500ms ease;
}

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

.featured-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background-color: var(--bg-secondary);
    color: var(--text-muted);
}

.featured-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to left, rgba(22, 27, 34, 0.6), transparent, transparent);
}

@media (max-width: 767px) {
    .featured-image-overlay {
        background: linear-gradient(to right, rgba(22, 27, 34, 0.6), transparent, transparent);
    }
}

.featured-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 24px;
}

@media (min-width: 768px) {
    .featured-content {
        padding: 32px;
    }
}

.featured-meta-top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.category-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    background-color: var(--accent-blue-10);
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-blue);
    text-decoration: none;
    transition: background-color var(--transition);
}

.category-badge:hover {
    background-color: var(--accent-blue-20);
}

.featured-label {
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent-blue);
}

.featured-title {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-wrap: balance;
    transition: color var(--transition);
}

@media (min-width: 768px) {
    .featured-title {
        font-size: 30px;
    }
}

.featured-post:hover .featured-title {
    color: var(--accent-blue);
}

.featured-excerpt {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* --- Post Meta --- */
.post-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
}

.meta-date,
.meta-readtime,
.meta-author {
    display: flex;
    align-items: center;
    gap: 6px;
}

.read-more {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--accent-blue);
}

.read-more svg {
    transition: transform var(--transition);
}

.featured-post:hover .read-more svg {
    transform: translateX(4px);
}

/* --- Blog List Section --- */
.section-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.section-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* --- Blog List Item --- */
.blog-list-item {
    border-bottom: 1px solid var(--border-color);
    padding: 24px 0;
}

.blog-list-item:last-child {
    border-bottom: none;
}

.blog-list-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.blog-list-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.category-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    background-color: var(--bg-secondary);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background-color var(--transition), color var(--transition);
}

.blog-list-link:hover .category-tag {
    background-color: var(--accent-blue-10);
    color: var(--accent-blue);
}

.blog-list-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.35;
    color: var(--text-primary);
    margin-bottom: 6px;
    transition: color var(--transition);
}

.blog-list-link:hover .blog-list-title {
    color: var(--accent-blue);
}

.blog-list-excerpt {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* --- Pagination --- */
.pagination {
    display: flex;
    justify-content: center;
    gap: 16px;
    padding-top: 32px;
    padding-bottom: 16px;
}

.pagination-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--bg-card);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition);
}

.pagination-link:hover {
    border-color: var(--accent-blue-20);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.pagination-link svg {
    transition: transform var(--transition);
}

.pagination-older:hover svg {
    transform: translateX(4px);
}

.pagination-newer:hover svg {
    transform: translateX(-4px);
}

/* --- Sidebar --- */
.sidebar-wrap-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--bg-card);
    padding: 20px;
}

.sidebar-heading {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

/* --- Sidebar Search --- */
.search-input-wrap {
    position: relative;
}

.search-input {
    width: 100%;
    padding: 8px 36px 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-sans);
    transition: border-color var(--transition);
}

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

.search-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 1px var(--accent-blue);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    padding: 2px;
    transition: color var(--transition);
}

.search-btn:hover {
    color: var(--accent-blue);
}

/* --- Tags Cloud --- */
.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-pill {
    display: inline-block;
    padding: 4px 12px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition);
}

.tag-pill:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background-color: var(--accent-blue-10);
}

/* --- Sponsored Links --- */
.sponsored-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sponsored-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: background-color var(--transition), color var(--transition);
}

.sponsored-link:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.sponsored-icon {
    color: var(--accent-blue);
    flex-shrink: 0;
}

.sponsored-disclaimer {
    margin-top: 12px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    opacity: 0.5;
}

.category-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.category-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: background-color var(--transition), color var(--transition);
}

.category-link:hover,
.category-link.active {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.category-icon {
    color: var(--accent-blue);
    display: flex;
    align-items: center;
}

/* --- Blog Post (single article) --- */
.blog-post {
    max-width: 100%;
}

.post-header {
    margin-bottom: 24px;
}

.post-header-meta {
    margin-bottom: 12px;
}

.post-title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-wrap: balance;
}

@media (min-width: 768px) {
    .post-title {
        font-size: 36px;
    }
}

.post-featured-image {
    margin-bottom: 32px;
    border-radius: var(--radius);
    overflow: hidden;
}

.post-featured-image img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

/* --- Post Content Styling --- */
.post-content {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
}

.post-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.post-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.post-content p {
    margin-bottom: 16px;
}

.post-content a {
    color: var(--accent-blue);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.post-content a:hover {
    color: var(--accent-blue-hover);
}

.post-content ul,
.post-content ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.post-content li {
    margin-bottom: 8px;
}

.post-content blockquote {
    border-left: 3px solid var(--accent-blue);
    padding: 12px 20px;
    margin: 24px 0;
    background-color: var(--bg-secondary);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--text-secondary);
    font-style: italic;
}

.post-content pre {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin: 24px 0;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.5;
}

.post-content code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background-color: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--accent-blue);
}

.post-content pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    color: inherit;
}

.post-content img {
    border-radius: var(--radius);
    margin: 24px 0;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
}

.post-content th,
.post-content td {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    text-align: left;
    font-size: 14px;
}

.post-content th {
    background-color: var(--bg-secondary);
    font-weight: 600;
}

/* --- Post Tags --- */
.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.tag-link {
    display: inline-block;
    padding: 4px 12px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition);
}

.tag-link:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background-color: var(--accent-blue-10);
}

/* --- Post Navigation --- */
.post-navigation {
    display: grid;
    gap: 16px;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

@media (min-width: 768px) {
    .post-navigation {
        grid-template-columns: 1fr 1fr;
    }
}

.post-nav-link {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    text-decoration: none;
    transition: border-color var(--transition), background-color var(--transition);
}

.post-nav-link:hover {
    border-color: var(--accent-blue-20);
    background-color: var(--bg-card);
}

.post-nav-next {
    text-align: right;
}

.post-nav-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
}

.post-nav-next .post-nav-label {
    justify-content: flex-end;
}

.post-nav-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    transition: color var(--transition);
}

.post-nav-link:hover .post-nav-title {
    color: var(--accent-blue);
}

/* --- Footer --- */
.site-footer {
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-card);
}

.site-footer > .container {
    padding-top: 48px;
    padding-bottom: 48px;
}

.footer-grid {
    display: grid;
    gap: 32px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    margin-bottom: 16px;
}

.footer-logo-image {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    object-fit: contain;
}

.footer-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-description {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.footer-heading {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--accent-blue);
}

.footer-bottom {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-muted);
}

/* --- Error Page --- */
.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
}

.error-code {
    font-size: 72px;
    font-weight: 700;
    color: var(--accent-blue);
    line-height: 1;
    margin-bottom: 8px;
}

.error-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.error-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.error-home-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition);
}

.error-home-link:hover {
    border-color: var(--accent-blue);
    background-color: var(--accent-blue-10);
    color: var(--accent-blue);
}

/* --- No Posts Message --- */
.no-posts {
    padding: 40px 20px;
    text-align: center;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.no-posts p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* --- Tag Title Icon --- */
.tag-title-icon {
    display: inline-block;
    vertical-align: middle;
    margin-right: 8px;
    color: var(--accent-blue);
}

/* --- Selection --- */
::selection {
    background-color: var(--accent-blue);
    color: #fff;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}