/* ===========================================
   Article & Project Pages - 0x1Ak4sh Portfolio
   Primary Color: #a4ff91 (Neon Green)
   Background: #0b1115 / Cards: #1d252c
   Font: Space Grotesk / Code: JetBrains Mono
   =========================================== */

/* ----- CSS Variables ----- */
:root {
    --accent: #a4ff91;
    --accent-rgb: 164, 255, 145;
    --bg-primary: #0b1115;
    --bg-card: #1d252c;
    --bg-code: #0d1117;
    --text-primary: rgba(255, 255, 255, 0.85);
    --text-secondary: rgba(255, 255, 255, 0.55);
    --text-muted: rgba(255, 255, 255, 0.35);
    --border-subtle: rgba(197, 202, 213, 0.12);
    --content-max: 850px;
    --toc-width: 280px;
    --font-main: 'Space Grotesk', sans-serif;
    --font-code: 'JetBrains Mono', 'Fira Code', monospace;
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body.article-page {
    margin: 0;
    padding: 0;
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    overflow-y: auto;
    height: auto;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
}

body.article-page ::selection {
    background: rgba(var(--accent-rgb), 0.3);
    color: #fff;
}

/* ----- Reading Progress Bar ----- */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), rgba(var(--accent-rgb), 0.6));
    z-index: 9999;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.5);
}

/* ----- Top Navigation Bar ----- */
.article-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(11, 17, 21, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    transition: var(--transition);
}

.article-nav.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-back {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-back:hover {
    color: var(--accent);
    background: rgba(var(--accent-rgb), 0.08);
}

.nav-back i {
    font-size: 0.85rem;
}

.nav-logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-share-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(var(--accent-rgb), 0.08);
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.nav-share-btn:hover {
    background: rgba(var(--accent-rgb), 0.15);
    color: var(--accent);
}

/* ----- Hero Section ----- */
.article-hero {
    position: relative;
    width: 100%;
    min-height: 420px;
    display: flex;
    align-items: flex-end;
    margin-top: 60px;
    overflow: visible;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(11, 17, 21, 0.3) 0%,
        rgba(11, 17, 21, 0.6) 50%,
        rgba(11, 17, 21, 0.95) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: min(calc(var(--content-max) + var(--toc-width) + 4rem), 100%);
    margin: 0 auto;
    padding: 3rem 2rem 2.5rem;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-category {
    background: rgba(var(--accent-rgb), 0.15);
    color: var(--accent);
    border: 1px solid rgba(var(--accent-rgb), 0.3);
}

.badge-difficulty {
    background: rgba(255, 171, 64, 0.12);
    color: #ffab40;
    border: 1px solid rgba(255, 171, 64, 0.3);
}

.badge-difficulty.easy {
    background: rgba(76, 175, 80, 0.12);
    color: #66bb6a;
    border-color: rgba(76, 175, 80, 0.3);
}

.badge-difficulty.medium {
    background: rgba(255, 171, 64, 0.12);
    color: #ffab40;
    border-color: rgba(255, 171, 64, 0.3);
}

.badge-difficulty.hard {
    background: rgba(244, 67, 54, 0.12);
    color: #ef5350;
    border-color: rgba(244, 67, 54, 0.3);
}

.badge-difficulty.insane {
    background: rgba(156, 39, 176, 0.12);
    color: #ab47bc;
    border-color: rgba(156, 39, 176, 0.3);
}

.hero-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
    margin: 0 0 1rem;
    letter-spacing: -0.5px;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.25rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.hero-meta i {
    color: var(--accent);
    font-size: 0.8rem;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.hero-tag {
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    background: rgba(var(--accent-rgb), 0.08);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.hero-tag:hover {
    background: rgba(var(--accent-rgb), 0.18);
}

/* ----- Main Layout: TOC + Content ----- */
.article-layout {
    display: grid;
    grid-template-columns: var(--toc-width) 1fr;
    gap: 3rem;
    max-width: min(calc(var(--content-max) + var(--toc-width) + 4rem), 100%);
    margin: 0 auto;
    padding: 3rem 2rem;
    overflow-x: hidden;
}

/* ----- Table of Contents (Sticky Sidebar) ----- */
.toc-sidebar {
    position: sticky;
    top: 80px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    padding-right: 1rem;
}

.toc-sidebar::-webkit-scrollbar {
    width: 3px;
}

.toc-sidebar::-webkit-scrollbar-thumb {
    background: rgba(var(--accent-rgb), 0.3);
    border-radius: 3px;
}

.toc-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-list li {
    margin-bottom: 0.25rem;
}

.toc-list a {
    display: block;
    padding: 0.4rem 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 400;
    border-left: 2px solid transparent;
    border-radius: 0 4px 4px 0;
    transition: var(--transition);
    line-height: 1.4;
}

.toc-list a:hover {
    color: var(--text-primary);
    background: rgba(var(--accent-rgb), 0.05);
}

.toc-list a.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background: rgba(var(--accent-rgb), 0.08);
    font-weight: 500;
}

.toc-list .toc-h3 {
    padding-left: 1.5rem;
    font-size: 0.78rem;
}

/* ----- Article Content ----- */
.article-content {
    max-width: var(--content-max);
    width: 100%;
    overflow-x: hidden;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.article-content h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #fff;
    margin: 2.5rem 0 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-subtle);
    letter-spacing: -0.3px;
}

.article-content h2:first-child {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin: 2rem 0 0.75rem;
}

.article-content h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    margin: 1.5rem 0 0.5rem;
}

.article-content p {
    margin: 0 0 1.25rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.article-content a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid rgba(var(--accent-rgb), 0.3);
    transition: var(--transition);
}

.article-content a:hover {
    border-bottom-color: var(--accent);
}

.article-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border-subtle);
    margin: 1.5rem 0;
    cursor: zoom-in;
}

.article-content figure {
    margin: 1.5rem 0;
}

.article-content figcaption {
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    font-style: italic;
}

/* ----- Command Blocks ----- */
.cmd-block {
    position: relative;
    background: var(--bg-code);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    margin: 1.25rem 0;
    overflow: hidden;
}

.cmd-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

.cmd-tool {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cmd-tool i {
    font-size: 0.7rem;
}

.cmd-copy {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    background: rgba(var(--accent-rgb), 0.08);
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    font-size: 0.72rem;
    font-family: var(--font-main);
    font-weight: 500;
    transition: var(--transition);
}

.cmd-copy:hover {
    background: rgba(var(--accent-rgb), 0.18);
    color: var(--accent);
}

.cmd-copy.copied {
    color: var(--accent);
}

.cmd-body {
    padding: 1rem 1.25rem;
    overflow-x: auto;
}

.cmd-body code {
    font-family: var(--font-code);
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-primary);
    white-space: pre;
}

.cmd-body .prompt {
    color: var(--accent);
    user-select: none;
}

/* ----- Collapsible Output ----- */
.cmd-output {
    border-top: 1px dashed var(--border-subtle);
}

.cmd-output-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.6rem 1.25rem;
    background: rgba(255, 255, 255, 0.02);
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-family: var(--font-main);
    font-size: 0.78rem;
    font-weight: 500;
    transition: var(--transition);
}

.cmd-output-toggle:hover {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
}

.cmd-output-toggle i {
    transition: transform 0.3s ease;
}

.cmd-output-toggle.expanded i {
    transform: rotate(90deg);
}

.cmd-output-content {
    display: none;
    padding: 0.75rem 1.25rem 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.cmd-output-content.show {
    display: block;
}

.cmd-output-content code {
    font-family: var(--font-code);
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-secondary);
    white-space: pre;
}

/* ----- Code Blocks with Syntax Highlighting ----- */
.code-block {
    position: relative;
    margin: 1.25rem 0;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.code-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid var(--border-subtle);
}

.code-lang {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.code-block pre {
    margin: 0;
    padding: 1.25rem;
    background: var(--bg-code);
    overflow-x: auto;
}

.code-block pre code {
    font-family: var(--font-code);
    font-size: 0.84rem;
    line-height: 1.6;
}

/* ----- Prompt/Callout Boxes ----- */
.prompt-box {
    position: relative;
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
    border-radius: var(--radius);
    border-left: 3px solid;
}

.prompt-box .prompt-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.prompt-box p {
    margin: 0;
    font-size: 0.9rem;
}

.prompt-tip {
    background: rgba(var(--accent-rgb), 0.06);
    border-color: var(--accent);
}

.prompt-tip .prompt-title {
    color: var(--accent);
}

.prompt-warning {
    background: rgba(255, 171, 64, 0.06);
    border-color: #ffab40;
}

.prompt-warning .prompt-title {
    color: #ffab40;
}

.prompt-danger {
    background: rgba(244, 67, 54, 0.06);
    border-color: #ef5350;
}

.prompt-danger .prompt-title {
    color: #ef5350;
}

.prompt-info {
    background: rgba(66, 165, 245, 0.06);
    border-color: #42a5f5;
}

.prompt-info .prompt-title {
    color: #42a5f5;
}

/* ----- Tables ----- */
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.88rem;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.article-content thead {
    background: rgba(var(--accent-rgb), 0.08);
}

.article-content th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--accent);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-content td {
    padding: 0.7rem 1rem;
    border-top: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

.article-content tbody tr:hover {
    background: rgba(var(--accent-rgb), 0.03);
}

.status-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
}

.status-badge.success {
    background: rgba(76, 175, 80, 0.15);
    color: #66bb6a;
}

.status-badge.warning {
    background: rgba(255, 171, 64, 0.15);
    color: #ffab40;
}

.status-badge.danger {
    background: rgba(244, 67, 54, 0.15);
    color: #ef5350;
}

/* ----- Blockquotes ----- */
.article-content blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    border-left: 3px solid var(--accent);
    background: rgba(var(--accent-rgb), 0.04);
    border-radius: 0 var(--radius) var(--radius) 0;
}

.article-content blockquote p {
    margin: 0;
    color: var(--text-primary);
    font-style: italic;
    font-size: 0.95rem;
}

/* ----- Checklists ----- */
.checklist {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.checklist li {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 0.4rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.checklist li::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--accent);
    font-size: 0.75rem;
    margin-top: 0.3rem;
    flex-shrink: 0;
}

.checklist li.unchecked::before {
    content: '\f111';
    font-family: 'Font Awesome 5 Free';
    font-weight: 400;
    color: var(--text-muted);
}

/* ----- Numbered Steps ----- */
.steps {
    counter-reset: step;
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.steps li {
    counter-increment: step;
    position: relative;
    padding: 1rem 0 1rem 3.5rem;
    border-left: 2px solid var(--border-subtle);
    margin-left: 1rem;
}

.steps li::before {
    content: counter(step);
    position: absolute;
    left: -14px;
    top: 1rem;
    width: 26px;
    height: 26px;
    background: var(--bg-card);
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
}

.steps li:last-child {
    border-left-color: transparent;
}

/* ----- Mermaid Diagrams ----- */
.mermaid-container {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--bg-code);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    overflow-x: auto;
    text-align: center;
}

/* ----- Author Bio Section ----- */
.author-section {
    margin-top: 4rem;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.author-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    border: 2px solid rgba(var(--accent-rgb), 0.3);
    flex-shrink: 0;
}

.author-info h4 {
    margin: 0 0 0.25rem;
    font-size: 1rem;
    color: #fff;
}

.author-info p {
    margin: 0 0 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.author-social {
    display: flex;
    gap: 0.6rem;
}

.author-social a {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(var(--accent-rgb), 0.08);
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-decoration: none;
    border: none;
    transition: var(--transition);
}

.author-social a:hover {
    background: rgba(var(--accent-rgb), 0.18);
    color: var(--accent);
}

/* ----- Share Menu ----- */
.share-section {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-subtle);
}

.share-section h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 0 1rem;
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    background: var(--bg-card);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    border: 1px solid var(--border-subtle);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-main);
}

.share-btn:hover {
    background: rgba(var(--accent-rgb), 0.08);
    border-color: rgba(var(--accent-rgb), 0.3);
    color: var(--accent);
}

/* ----- Previous/Next Navigation ----- */
.article-nav-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-subtle);
}

.nav-item {
    padding: 1.25rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-subtle);
    text-decoration: none;
    transition: var(--transition);
}

.nav-item:hover {
    border-color: rgba(var(--accent-rgb), 0.3);
    background: rgba(var(--accent-rgb), 0.04);
}

.nav-item .nav-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.nav-item .nav-title {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.4;
}

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

/* ----- Related Content Grid ----- */
.related-section {
    margin-top: 3rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border-subtle);
}

.related-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
    margin: 0 0 1.5rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.25rem;
}

.related-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-subtle);
    padding: 1.25rem;
    text-decoration: none;
    transition: var(--transition);
}

.related-card:hover {
    border-color: rgba(var(--accent-rgb), 0.3);
    transform: translateY(-2px);
}

.related-card .rc-badge {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--accent);
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.related-card .rc-title {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 0.4rem;
}

.related-card .rc-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ----- Back to Top Button ----- */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
    font-size: 0.9rem;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: rgba(var(--accent-rgb), 0.12);
    border-color: rgba(var(--accent-rgb), 0.4);
    color: var(--accent);
}

/* ----- Footer ----- */
.article-footer {
    margin-top: 4rem;
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-subtle);
}

.article-footer p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.article-footer a {
    color: var(--accent);
    text-decoration: none;
}

/* ===== PROJECT-SPECIFIC STYLES ===== */

/* ----- GitHub Stats ----- */
.project-stats {
    display: flex;
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.stat-item i {
    color: var(--accent);
}

/* ----- Action Buttons ----- */
.project-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    font-family: var(--font-main);
    border: none;
    cursor: pointer;
}

.action-btn.primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.action-btn.primary:hover {
    background: #b8ff9f;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.3);
}

.action-btn.secondary {
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
    border: 1px solid rgba(var(--accent-rgb), 0.3);
}

.action-btn.secondary:hover {
    background: rgba(var(--accent-rgb), 0.18);
}

/* ----- Tech Stack ----- */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 1.5rem 0;
}

.tech-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    background: var(--bg-code);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.tech-item i {
    color: var(--accent);
    font-size: 0.9rem;
}

/* ----- Feature Cards Grid ----- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.feature-card {
    padding: 1.25rem;
    background: var(--bg-code);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: rgba(var(--accent-rgb), 0.3);
}

.feature-card .fc-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.feature-card h4 {
    margin: 0 0 0.4rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.feature-card p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ----- Terminal Demo ----- */
.terminal-demo {
    margin: 2rem 0;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid var(--border-subtle);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
    margin-left: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-code);
}

.terminal-body {
    padding: 1.25rem;
    background: var(--bg-code);
    font-family: var(--font-code);
    font-size: 0.84rem;
    line-height: 1.7;
    color: var(--text-secondary);
    overflow-x: auto;
}

.terminal-body .t-prompt {
    color: var(--accent);
}

.terminal-body .t-command {
    color: var(--text-primary);
}

.terminal-body .t-output {
    color: var(--text-secondary);
}

.terminal-body .t-success {
    color: #66bb6a;
}

.terminal-body .t-error {
    color: #ef5350;
}

/* ----- Code Tabs ----- */
.code-tabs {
    margin: 1.5rem 0;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.code-tabs-header {
    display: flex;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

.code-tab-btn {
    padding: 0.6rem 1.25rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.code-tab-btn:hover {
    color: var(--text-primary);
    background: rgba(var(--accent-rgb), 0.03);
}

.code-tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
    background: rgba(var(--accent-rgb), 0.05);
}

.code-tab-content {
    display: none;
}

.code-tab-content.active {
    display: block;
}

.code-tab-content pre {
    margin: 0;
    padding: 1.25rem;
    background: var(--bg-code);
}

.code-tab-content pre code {
    font-family: var(--font-code);
    font-size: 0.84rem;
    line-height: 1.6;
}

/* ----- Changelog ----- */
.changelog {
    margin: 1.5rem 0;
}

.changelog-item {
    padding: 1.25rem;
    margin-bottom: 1rem;
    background: var(--bg-code);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
}

.changelog-version {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.changelog-version .version {
    font-weight: 700;
    color: var(--accent);
    font-size: 0.95rem;
}

.changelog-version .date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.changelog-item ul {
    margin: 0.5rem 0 0;
    padding-left: 1.25rem;
}

.changelog-item ul li {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
}

/* ===== HOMEPAGE CONTENT GRID ===== */

.content-grid-section {
    padding: 0;
}

.content-grid-section .content-cards {
    padding-top: 1.25rem;
}

.content-grid-section .section-header {
    margin-bottom: 2rem;
}

.content-grid-section .section-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    margin: 0 0 1.5rem;
}

/* Filter Tabs */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.filter-tab {
    padding: 0.4rem 1rem;
    border-radius: 20px;
    background: rgba(var(--accent-rgb), 0.06);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-main);
}

.filter-tab:hover {
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--text-primary);
}

.filter-tab.active {
    background: rgba(var(--accent-rgb), 0.15);
    color: var(--accent);
    border-color: rgba(var(--accent-rgb), 0.4);
}

/* Tag Filters */
.tag-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.tag-filter {
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    background: rgba(var(--accent-rgb), 0.04);
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    font-family: var(--font-main);
}

.tag-filter:hover {
    color: var(--accent);
    background: rgba(var(--accent-rgb), 0.08);
}

.tag-filter.active {
    color: var(--accent);
    background: rgba(var(--accent-rgb), 0.1);
    border-color: rgba(var(--accent-rgb), 0.3);
}

/* Content Cards */
.content-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
    gap: 1.25rem;
}

.content-card {
    background: var(--bg-code);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.content-card:hover {
    border-color: rgba(var(--accent-rgb), 0.4);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.content-card .card-image {
    width: 100%;
    height: 160px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.content-card .card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 50%, var(--bg-code) 100%);
}

.content-card .card-body {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.content-card .card-badge {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.content-card .card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.content-card .card-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 0.75rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.content-card .card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
}

.content-card .card-date {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.content-card .card-tags {
    display: flex;
    gap: 0.3rem;
}

.content-card .card-tag {
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
    background: rgba(var(--accent-rgb), 0.08);
    color: var(--accent);
    border-radius: 3px;
}

.content-card .card-meta-right {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* Scroll-triggered animations */
.content-card {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.4s ease, transform 0.4s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.content-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Fallback: ensure cards show if JS fails */
.content-card:nth-child(n+1) {
    animation: cardFallback 0s 2s forwards;
}

@keyframes cardFallback {
    to { opacity: 1; transform: translateY(0); }
}

/* Loading indicator */
.load-more {
    text-align: center;
    padding: 2rem 0;
}

.load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.5rem;
    background: rgba(var(--accent-rgb), 0.08);
    color: var(--accent);
    border: 1px solid rgba(var(--accent-rgb), 0.3);
    border-radius: var(--radius);
    font-family: var(--font-main);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.load-more-btn:hover {
    background: rgba(var(--accent-rgb), 0.15);
}

/* ===== HOMEPAGE CARD FONT OVERRIDE =====
   Ensures content cards on the homepage inherit site fonts properly */

.page .content-grid-section .content-cards,
.page .content-grid-section .content-card,
.page .content-grid-section .filter-tabs,
.page .content-grid-section .tag-filters {
    font-family: 'Space Grotesk', sans-serif;
}

.page .content-grid-section .content-card .card-title {
    color: rgba(255, 255, 255, 0.85);
}

.page .content-grid-section .content-card .card-desc {
    color: rgba(255, 255, 255, 0.55);
}

.page .content-grid-section .content-card .card-badge {
    color: #a4ff91;
}

.page .content-grid-section .content-card .card-date,
.page .content-grid-section .content-card .card-meta-right {
    color: rgba(255, 255, 255, 0.35);
}

/* ===== RESPONSIVE ===== */

/* Tablet */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
        gap: 0;
        padding: 2rem 1.5rem;
        max-width: 100%;
    }

    .article-content {
        max-width: 100%;
    }

    .hero-content {
        max-width: 100%;
        padding: 2.5rem 1.5rem 2rem;
    }

    .toc-sidebar {
        position: relative;
        top: 0;
        max-height: none;
        padding: 1.25rem;
        margin-bottom: 2rem;
        background: var(--bg-card);
        border-radius: var(--radius);
        border: 1px solid var(--border-subtle);
    }

    .toc-list {
        display: flex;
        flex-wrap: wrap;
        gap: 0.25rem;
    }

    .toc-list li {
        margin: 0;
    }

    .toc-list a {
        border-left: none;
        border-radius: var(--radius);
        padding: 0.35rem 0.7rem;
        font-size: 0.78rem;
    }

    .toc-list a.active {
        background: rgba(var(--accent-rgb), 0.12);
    }

    .toc-list .toc-h3 {
        padding-left: 0.7rem;
    }

    .project-stats {
        flex-wrap: wrap;
        gap: 1rem;
    }
}

/* Mobile landscape / small tablet */
@media (max-width: 768px) {
    body.article-page {
        font-size: 15px;
    }

    .article-hero {
        min-height: auto;
    }

    .article-hero .hero-bg::after {
        background: linear-gradient(
            to bottom,
            rgba(11, 17, 21, 0.55) 0%,
            rgba(11, 17, 21, 0.8) 40%,
            rgba(11, 17, 21, 0.97) 100%
        );
    }

    .hero-title {
        font-size: 1.4rem;
        line-height: 1.3;
    }

    .hero-content {
        padding: 1.75rem 1rem 1.5rem;
    }

    .hero-badges {
        gap: 0.4rem;
    }

    .badge {
        font-size: 0.68rem;
        padding: 0.25rem 0.6rem;
    }

    .article-layout {
        padding: 1.5rem 1rem;
    }

    .article-nav {
        padding: 0 0.75rem;
        height: 50px;
    }

    .article-hero {
        margin-top: 50px;
        min-height: auto;
    }

    .article-nav-bottom {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .nav-item.next {
        text-align: left;
    }

    .author-section {
        flex-direction: column;
        text-align: center;
        padding: 1.25rem;
        gap: 1rem;
    }

    .author-social {
        justify-content: center;
    }

    .content-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .project-actions {
        flex-direction: column;
    }

    .action-btn {
        justify-content: center;
        width: 100%;
        padding: 0.75rem 1.25rem;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }

    .article-content h2 {
        font-size: 1.3rem;
        margin: 2rem 0 0.75rem;
        padding-top: 1.25rem;
    }

    .article-content h3 {
        font-size: 1.05rem;
    }

    .article-content p {
        font-size: 0.93rem;
    }

    /* Full-bleed blocks on mobile for more space */
    .cmd-block,
    .code-block,
    .terminal-demo,
    .code-tabs {
        margin-left: 0;
        margin-right: 0;
        border-radius: var(--radius);
        max-width: 100%;
        overflow-x: auto;
    }

    .cmd-body {
        padding: 0.75rem 1rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .cmd-body code {
        font-size: 0.76rem;
        white-space: pre;
        display: block;
        min-width: fit-content;
    }

    .terminal-body {
        font-size: 0.74rem;
        padding: 1rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .code-tab-content pre {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .code-tab-content pre code {
        font-size: 0.76rem;
    }

    .article-content table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin-left: 0;
        margin-right: 0;
        width: 100%;
        max-width: 100%;
    }

    .article-content th,
    .article-content td {
        padding: 0.55rem 0.7rem;
        font-size: 0.78rem;
        white-space: nowrap;
    }

    .mermaid-container {
        margin-left: 0;
        margin-right: 0;
        border-radius: var(--radius);
        padding: 1rem 0.5rem;
        overflow-x: auto;
        max-width: 100%;
    }

    .prompt-box {
        margin: 1.25rem 0;
        padding: 0.85rem 1rem;
        font-size: 0.88rem;
    }

    .prompt-box .prompt-title {
        font-size: 0.85rem;
    }

    .share-buttons {
        flex-direction: column;
    }

    .share-btn {
        justify-content: center;
    }

    .steps li {
        padding: 0.75rem 0 0.75rem 2.5rem;
        margin-left: 0.75rem;
    }

    .steps li::before {
        left: -12px;
        width: 22px;
        height: 22px;
        font-size: 0.7rem;
    }

    .back-to-top {
        bottom: 1.25rem;
        right: 1.25rem;
        width: 38px;
        height: 38px;
    }

    .project-stats {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .stat-item {
        font-size: 0.8rem;
    }

    .tech-stack {
        gap: 0.5rem;
    }

    .tech-item {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }

    .hero-tags {
        gap: 0.35rem;
    }

    .hero-tag {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }

    .checklist li {
        font-size: 0.85rem;
    }

    .article-content blockquote {
        margin-left: 0;
        margin-right: 0;
        padding: 0.85rem 1rem;
    }

    .article-content blockquote p {
        font-size: 0.9rem;
    }
}

/* Mobile portrait */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.3rem;
    }

    .hero-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.4rem;
        font-size: 0.8rem;
    }

    .nav-back span {
        display: none;
    }

    .nav-logo {
        font-size: 1rem;
    }

    .article-content p {
        font-size: 0.92rem;
        line-height: 1.75;
    }

    .toc-sidebar {
        padding: 1rem;
    }

    .toc-list a {
        font-size: 0.72rem;
        padding: 0.3rem 0.55rem;
    }

    .code-tabs-header {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .code-tab-btn {
        padding: 0.5rem 0.9rem;
        font-size: 0.76rem;
        white-space: nowrap;
    }

    .changelog-item {
        padding: 1rem;
    }

    .changelog-version .version {
        font-size: 0.88rem;
    }

    .changelog-item ul li {
        font-size: 0.8rem;
    }

    .content-card .card-body {
        padding: 1rem;
    }

    .content-card .card-title {
        font-size: 0.92rem;
    }

    .content-card .card-image {
        height: 140px;
    }
}

/* Very small screens */
@media (max-width: 360px) {
    .article-layout {
        padding: 1.25rem 0.75rem;
    }

    .hero-content {
        padding: 1.5rem 0.75rem 1.25rem;
    }

    .hero-title {
        font-size: 1.2rem;
    }

    .article-content h2 {
        font-size: 1.2rem;
    }

    .article-content h3 {
        font-size: 1rem;
    }
}

/* ----- Prism.js Theme Override (Dark) ----- */
code[class*="language-"],
pre[class*="language-"] {
    color: #e6edf3;
    font-family: var(--font-code);
    font-size: 0.84rem;
    text-align: left;
    white-space: pre;
    word-spacing: normal;
    word-break: normal;
    word-wrap: normal;
    line-height: 1.6;
    tab-size: 4;
}

.token.comment,
.token.prolog,
.token.doctype,
.token.cdata { color: #8b949e; }

.token.punctuation { color: #c9d1d9; }

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted { color: #79c0ff; }

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted { color: #a5d6ff; }

.token.operator,
.token.entity,
.token.url { color: #c9d1d9; }

.token.atrule,
.token.attr-value,
.token.keyword { color: #ff7b72; }

.token.function,
.token.class-name { color: #d2a8ff; }

.token.regex,
.token.important,
.token.variable { color: #ffa657; }