/* ================================================================
   DevDocs — Consolidated Blue + Red Theme
   Based on original red theme by Ashari Abidin
   Enhanced with blue accents & unified styling
   ================================================================ */

/* --- CSS Variables / Color Palette --- */
:root {
    --primary-red: #c72a3f;
    --red-dark: #9b1d2c;
    --red-light: #fff5f5;
    --red-bg-subtle: rgba(199, 42, 63, 0.08);

    --primary-blue: #1a56db;
    --blue-dark: #1e40af;
    --blue-light: #eff6ff;
    --blue-bg-subtle: rgba(26, 86, 219, 0.08);

    --hero-gradient: linear-gradient(135deg, #1a56db, #c72a3f);
    --hero-gradient-reverse: linear-gradient(135deg, #c72a3f, #1a56db);

    --bg-body: linear-gradient(145deg, #f5f8ff 0%, #fff5f7 100%);
    --text-primary: #1a1e2b;
    --text-secondary: #4a4e5e;
    --text-muted: #7a7e8e;
    --border-light: #e2e8f0;
    --border-red: #ffccd1;
    --border-blue: #bfdbfe;
    --card-bg: #ffffff;
    --sidebar-bg: #ffffff;
    --sidebar-border: var(--border-blue);
    --footer-text: #8a8e9e;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg-body);
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover {
    color: var(--blue-dark);
}

/* --- App Layout --- */
.app-wrapper {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* --- Top Actions --- */
.top-actions {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 300;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-switch {
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 40px;
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    transition: 0.2s;
}
.lang-switch:hover {
    background: var(--blue-dark);
}

.admin-quick-link {
    background: var(--primary-red);
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    transition: 0.2s;
}
.admin-quick-link:hover {
    background: var(--red-dark);
    color: white;
    transform: rotate(30deg);
}

/* --- Sidebar --- */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    box-shadow: 2px 0 12px rgba(26, 86, 219, 0.05);
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease;
    z-index: 100;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar.collapsed {
    width: 70px;
}
.sidebar.collapsed .sidebar-text,
.sidebar.collapsed .group-text,
.sidebar.collapsed .link-text,
.sidebar.collapsed .menu-items li a span:not(.link-text),
.sidebar.collapsed .group-title span .group-text,
.sidebar.collapsed .sidebar-search,
.sidebar.collapsed .sidebar-footer .sidebar-text {
    display: none;
}
.sidebar.collapsed .group-title {
    justify-content: center;
    padding: 0.6rem 0;
}
.sidebar.collapsed .group-title i:first-child {
    margin-right: 0;
}
.sidebar.collapsed .toggle-icon {
    display: none;
}
.sidebar.collapsed .menu-items li a {
    justify-content: center;
    padding: 0.5rem 0;
}
.sidebar.collapsed .menu-items li a i {
    margin-right: 0;
}
.sidebar.collapsed .sidebar-header {
    justify-content: center;
}
.sidebar.collapsed .sidebar-header h3 {
    justify-content: center;
}
.sidebar.collapsed .sidebar-header .sidebar-collapse-btn {
    display: none;
}
.sidebar.collapsed .sidebar-header-mini {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    padding: 0.8rem 0;
    gap: 0.8rem;
}

.sidebar-header-mini {
    display: none;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0.8rem;
    border-bottom: 2px solid var(--border-blue);
}
.sidebar-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--blue-dark);
    display: flex;
    align-items: center;
    gap: 6px;
}

.sidebar-collapse-btn, .sidebar-expand-btn {
    background: transparent;
    border: none;
    color: var(--primary-blue);
    font-size: 0.9rem;
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    border-radius: 0.5rem;
    transition: 0.1s;
}
.sidebar-collapse-btn:hover, .sidebar-expand-btn:hover {
    background: var(--blue-light);
}

.sidebar-search {
    padding: 0.6rem 0.7rem;
    border-bottom: 1px solid var(--border-blue);
}
.search-input-wrap {
    display: flex;
    align-items: center;
    background: var(--blue-light);
    border-radius: 2rem;
    padding: 0.3rem 0.8rem;
    gap: 6px;
}
.search-input-wrap i {
    color: var(--primary-blue);
    font-size: 0.75rem;
}
.search-input-wrap input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 0.75rem;
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    width: 100%;
}
.search-input-wrap input::placeholder {
    color: var(--text-muted);
}

/* Mobile Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 200;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.mobile-menu-toggle:hover {
    background: var(--blue-dark);
}

/* Menu Groups */
.menu-group {
    margin: 0.25rem 0;
    border-bottom: 1px solid var(--border-blue);
}
.group-title {
    padding: 0.45rem 0.8rem;
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--blue-dark);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #fafcff;
}
.group-title:hover {
    background: var(--blue-light);
}
.group-title i:first-child {
    margin-right: 8px;
    width: 1.2rem;
    color: var(--primary-blue);
    font-size: 0.75rem;
}
.toggle-icon {
    font-size: 0.65rem;
    transition: transform 0.2s;
    color: var(--primary-blue);
}
.menu-items {
    list-style: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: #fafcff;
}
.menu-items.open {
    max-height: 800px;
    transition: max-height 0.4s ease-in;
}
.menu-items li a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0.35rem 0.8rem 0.35rem 1.8rem;
    text-decoration: none;
    font-size: 0.68rem;
    color: var(--text-secondary);
    border-left: 2px solid transparent;
    line-height: 1.3;
}
.menu-items li a i {
    width: 0.9rem;
    color: var(--primary-blue);
    font-size: 0.65rem;
}
.menu-items li a:hover {
    background: var(--blue-light);
    border-left-color: var(--primary-blue);
    color: var(--blue-dark);
}

/* Sidebar Footer */
.sidebar-footer {
    margin-top: auto;
    padding: 0.6rem 0.8rem;
    border-top: 1px solid var(--border-blue);
}
.sidebar-login-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    padding: 0.3rem 0.5rem;
    border-radius: 0.5rem;
    transition: 0.2s;
}
.sidebar-login-link:hover {
    background: var(--blue-light);
    color: var(--primary-blue);
}

/* --- Main Content --- */
.main-content {
    flex: 1;
    padding: 2rem 1.5rem;
    overflow-x: auto;
}

.docs-container {
    max-width: 1600px;
    margin: 0 auto;
}

/* Hero Section */
.hero-section {
    text-align: center;
    margin-bottom: 2.5rem;
}
.hero-section h1 {
    font-size: 2.4rem;
    font-weight: 800;
    background: var(--hero-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.02em;
}
.hero-section .badge-location {
    background: var(--blue-bg-subtle);
    border-radius: 60px;
    padding: 0.3rem 1rem;
    display: inline-flex;
    gap: 8px;
    margin-top: 0.8rem;
    font-size: 0.8rem;
    color: var(--blue-dark);
}
.developer-tag {
    display: inline-block;
    background: var(--red-bg-subtle);
    border-radius: 40px;
    padding: 0.2rem 0.8rem;
    font-size: 0.7rem;
    margin-top: 0.5rem;
    color: var(--red-dark);
}
.article-count {
    margin-top: 0.75rem;
    font-size: 0.75rem;
    color: var(--red-dark);
    background: var(--red-bg-subtle);
    display: inline-block;
    padding: 0.25rem 1rem;
    border-radius: 30px;
    font-weight: 500;
}
.article-count i {
    margin-right: 6px;
    color: var(--primary-red);
}

/* Card Grid */
.card-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.8rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.doc-card {
    background: var(--card-bg);
    border-radius: 1.8rem;
    box-shadow: 0 20px 35px -12px rgba(26, 86, 219, 0.12);
    flex: 1;
    min-width: 270px;
    max-width: 320px;
    transition: all 0.25s ease;
    border: 1px solid rgba(26, 86, 219, 0.15);
    position: relative;
}
.doc-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 40px -12px rgba(199, 42, 63, 0.18);
    border-color: rgba(199, 42, 63, 0.25);
}

.card-header {
    padding: 1.2rem 1.2rem 0.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-blue);
}
.card-header i {
    font-size: 1.6rem;
    background: var(--blue-light);
    padding: 0.5rem;
    border-radius: 1rem;
    color: var(--primary-blue);
}
.card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--blue-dark);
}

.card-body {
    padding: 1rem 1.2rem 1.2rem;
}
.file-path {
    background: var(--blue-light);
    border-radius: 0.8rem;
    padding: 0.3rem 0.6rem;
    font-family: monospace;
    font-size: 0.6rem;
    color: var(--blue-dark);
    margin-bottom: 0.8rem;
}
.description {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0.5rem 0 1rem;
}

.btn-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--hero-gradient);
    color: white;
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    transition: 0.2s;
    border: none;
    cursor: pointer;
}
.btn-link:hover {
    background: var(--hero-gradient-reverse);
    color: white;
    transform: scale(1.02);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1.5px solid var(--primary-blue);
    color: var(--primary-blue);
    background: transparent;
    font-weight: 600;
    padding: 0.4rem 1rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    transition: 0.2s;
    text-decoration: none;
    cursor: pointer;
}
.btn-outline:hover {
    background: var(--blue-light);
    color: var(--blue-dark);
}

.btn-danger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-red);
    color: white;
    border: none;
    font-weight: 600;
    padding: 0.4rem 1rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    cursor: pointer;
    transition: 0.2s;
    text-decoration: none;
}
.btn-danger:hover {
    background: var(--red-dark);
}

.badge-new {
    position: absolute;
    top: 0.7rem;
    right: 1rem;
    background: var(--red-light);
    padding: 0.2rem 0.5rem;
    border-radius: 30px;
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--red-dark);
}

/* Info Panel */
.info-panel {
    background: rgba(245, 248, 255, 0.9);
    border: 1px solid var(--border-blue);
    border-radius: 1.5rem;
    padding: 1rem 1.5rem;
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.8rem;
}
.domain-badge {
    font-family: monospace;
    background: var(--hero-gradient);
    color: #fff;
    border-radius: 2rem;
    padding: 0.3rem 1rem;
    font-size: 0.8rem;
}
.timestamp {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.7rem;
    color: var(--footer-text);
    padding: 1rem 0;
}

/* --- Article Content Page --- */
.article-wrapper {
    max-width: 960px;
    margin: 0 auto;
}

.article-brand-bar {
    background: var(--hero-gradient);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.article-brand-bar i {
    font-size: 1rem;
}
.article-header {
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-blue);
    padding-bottom: 1.2rem;
}
.article-header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.article-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}
.article-meta .badge {
    background: var(--red-bg-subtle);
    color: var(--red-dark);
    padding: 0.2rem 0.8rem;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.7rem;
}
.article-category {
    background: var(--blue-bg-subtle);
    color: var(--blue-dark);
    padding: 0.2rem 0.8rem;
    border-radius: 30px;
    font-weight: 500;
    font-size: 0.7rem;
}

.article-content {
    background: var(--card-bg);
    border-radius: 1.5rem;
    padding: 2rem;
    border: 1px solid var(--border-light);
    line-height: 1.7;
    font-size: 0.95rem;
}
.article-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 1.5rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-red);
    color: var(--text-primary);
}
.article-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 1.2rem 0 0.8rem;
    color: var(--primary-red);
}
.article-content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}
.article-content pre {
    background: #1a1e2b;
    color: #e2e8f0;
    border-radius: 1rem;
    padding: 1.2rem;
    overflow-x: auto;
    font-size: 0.82rem;
    margin: 1rem 0;
    border-left: 3px solid var(--primary-red);
}
.article-content code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85em;
}
.article-content :not(pre) > code {
    background: var(--red-light);
    color: var(--red-dark);
    padding: 0.15rem 0.4rem;
    border-radius: 0.4rem;
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid var(--border-light);
}
.article-content th {
    background: var(--primary-blue);
    color: white;
    font-weight: 600;
    padding: 0.7rem 1rem;
    text-align: left;
    font-size: 0.8rem;
}
.article-content td {
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.88rem;
}
.article-content tr:hover td {
    background: var(--blue-light);
}
.article-content ul, .article-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}
.article-content li {
    margin-bottom: 0.3rem;
    color: var(--text-secondary);
}
.article-content img {
    max-width: 100%;
    border-radius: 1rem;
    margin: 1rem 0;
}
.article-content blockquote {
    border-left: 4px solid var(--primary-blue);
    background: var(--blue-light);
    padding: 1rem 1.2rem;
    border-radius: 0 1rem 1rem 0;
    margin: 1rem 0;
    color: var(--text-secondary);
}

.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    gap: 1rem;
}
.article-nav a {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--primary-blue);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    background: var(--blue-light);
    transition: 0.2s;
}
.article-nav a:hover {
    background: var(--primary-blue);
    color: white;
}

/* --- Article Content Legacy Styles --- */
/* These provide styling for HTML classes used in imported article content */

.article-content .container {
    max-width: 100%;
}
.article-content .hero {
    text-align: center;
    padding: 1rem 0;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-blue);
}
.article-content .hero h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}
.article-content .hero .badge-accuracy,
.article-content .badge-accuracy,
.article-content .badge-red,
.article-content .badge-step {
    display: inline-block;
    background: var(--red-bg-subtle);
    color: var(--red-dark);
    padding: 0.3rem 1rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 0.5rem;
}
.article-content .hero .lang-toggle,
.article-content .lang-toggle {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}
.article-content .lang-btn,
.article-content .toggle-btn {
    padding: 0.4rem 1.2rem;
    border: 1.5px solid var(--border-blue);
    border-radius: 2rem;
    background: transparent;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    transition: 0.2s;
    color: var(--text-secondary);
}
.article-content .lang-btn.active,
.article-content .lang-btn:hover,
.article-content .toggle-btn:hover {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}
.article-content .hidden-lang {
    display: none !important;
}
.article-content .title-section {
    margin-bottom: 0.5rem;
}
.article-content .hero-sub,
.article-content .lead,
.article-content .desc-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Card Grids */
.article-content .card-grid,
.article-content .mini-grid,
.article-content .two-col-grid,
.article-content .use-cases-grid,
.article-content .tips-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1rem 0;
}
.article-content .card-grid > *,
.article-content .info-card,
.article-content .card,
.article-content .section-card,
.article-content .step-card {
    flex: 1;
    min-width: 240px;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 1.2rem;
    padding: 1.2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    transition: 0.2s;
}
.article-content .info-card:hover,
.article-content .card:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 4px 12px rgba(26,86,219,0.08);
}
.article-content .info-card h3,
.article-content .card h3,
.article-content .card-title,
.article-content .section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--blue-dark);
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 6px;
}
.article-content .card-number,
.article-content .step-num,
.article-content .step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--primary-red);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    margin-right: 6px;
}

/* Step blocks */
.article-content .steps-container,
.article-content .steps-grid {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin: 1rem 0;
}
.article-content .step-block,
.article-content .step-card {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}
.article-content .step-icon {
    flex-shrink: 0;
    font-size: 1.5rem;
    color: var(--primary-blue);
}
.article-content .step-body {
    flex: 1;
}
.article-content .step-title,
.article-content .step-header {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}
.article-content .step-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* Feature lists */
.article-content .feature-list,
.article-content .bullet-list,
.article-content .priority-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.article-content .feature-list li,
.article-content .bullet-list li,
.article-content .priority-list li {
    padding: 0.35rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}
.article-content .feature-list li::before,
.article-content .bullet-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: 700;
}
.article-content .priority-list li::before {
    content: '★';
    position: absolute;
    left: 0;
    color: var(--primary-red);
}
.article-content .feature-list li:last-child,
.article-content .bullet-list li:last-child {
    border-bottom: none;
}

/* Code / Cmd blocks */
.article-content .cmd-block,
.article-content .cmd,
.article-content .code-block,
.article-content .prompt-block {
    background: #1a1e2b;
    color: #e2e8f0;
    border-radius: 1rem;
    padding: 1rem 1.2rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.82rem;
    margin: 0.8rem 0;
    overflow-x: auto;
    border-left: 3px solid var(--primary-red);
}
.article-content .cmd-header {
    font-size: 0.7rem;
    color: #94a3b8;
    margin-bottom: 0.5rem;
}
.article-content .cmd-inline,
.article-content .inline-code {
    background: var(--red-light);
    color: var(--red-dark);
    padding: 0.15rem 0.4rem;
    border-radius: 0.3rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
}
.article-content .copy-btn {
    float: right;
    background: rgba(255,255,255,0.1);
    color: #94a3b8;
    border: none;
    border-radius: 0.5rem;
    padding: 0.2rem 0.6rem;
    cursor: pointer;
    font-size: 0.7rem;
    transition: 0.2s;
}
.article-content .copy-btn:hover {
    background: rgba(255,255,255,0.2);
    color: white;
}

/* Notes, tips, alerts */
.article-content .info-box,
.article-content .info-note,
.article-content .tip-box,
.article-content .focus-note,
.article-content .alert-note {
    border-left: 4px solid var(--primary-blue);
    background: var(--blue-light);
    padding: 1rem 1.2rem;
    border-radius: 0 1rem 1rem 0;
    margin: 1rem 0;
    color: var(--text-secondary);
    font-size: 0.88rem;
}
.article-content .tip-box {
    border-left-color: #059669;
    background: #f0fdf4;
}
.article-content .warning-badge {
    border-left-color: #d97706;
    background: #fffbeb;
}
.article-content .caution-list {
    border-left-color: var(--primary-red);
    background: var(--red-light);
}

/* Stats, banners */
.article-content .stats-banner {
    background: var(--hero-gradient);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 1.5rem;
    margin: 1rem 0;
    font-weight: 600;
    text-align: center;
}
.article-content .prompt-block {
    background: #1a1e2b;
    color: #e2e8f0;
    border-left: 3px solid var(--primary-blue);
    font-style: italic;
}
.article-content .priority-box {
    background: var(--red-light);
    border: 1px solid var(--border-red);
    border-radius: 1.2rem;
    padding: 1rem 1.5rem;
    margin: 1rem 0;
}
.article-content .subnote,
.article-content .footnote,
.article-content .footer-tips {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

/* Tables specific to legacy content */
.article-content .table-wrapper,
.article-content .summary-table-wrapper {
    overflow-x: auto;
    margin: 1rem 0;
}
.article-content .table-wrapper table,
.article-content .styled-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid var(--border-light);
}
.article-content .table-wrapper th,
.article-content .styled-table th {
    background: var(--primary-blue);
    color: white;
    font-weight: 600;
    padding: 0.7rem 1rem;
    text-align: left;
    font-size: 0.8rem;
}
.article-content .table-wrapper td,
.article-content .styled-table td {
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.85rem;
}
.article-content .table-wrapper tr:hover td,
.article-content .styled-table tr:hover td {
    background: var(--blue-light);
}

/* Misc legacy helpers */
.article-content .tag,
.article-content .tag-red {
    display: inline-block;
    background: var(--red-bg-subtle);
    color: var(--red-dark);
    padding: 0.15rem 0.6rem;
    border-radius: 0.5rem;
    font-size: 0.7rem;
    font-weight: 600;
}
.article-content .badge-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}
.article-content .status-ok {
    color: #059669;
    font-weight: 600;
}
.article-content .arch-diagram {
    background: var(--blue-light);
    border: 1px solid var(--border-blue);
    border-radius: 1rem;
    padding: 1rem;
    text-align: center;
    font-family: monospace;
    font-size: 0.85rem;
    margin: 1rem 0;
    color: var(--text-secondary);
}
.article-content .flow-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
    margin: 0.8rem 0;
}
.article-content .flow-node {
    background: var(--card-bg);
    border: 1px solid var(--border-blue);
    border-radius: 0.8rem;
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    color: var(--blue-dark);
    font-weight: 500;
}
.article-content .flow-arrow {
    color: var(--primary-red);
    font-weight: 700;
}
.article-content .flex-cmd {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.article-content .driver-list {
    list-style: none;
    padding: 0;
}
.article-content .driver-list li {
    padding: 0.25rem 0;
    font-size: 0.85rem;
}
.article-content .notes-section {
    margin-top: 1.5rem;
}
.article-content .summary-table-wrapper table td:first-child {
    font-weight: 600;
    color: var(--text-primary);
}

/* --- Engagement Section (Like, Share, Comments) --- */
.engagement-section {
    margin: 2rem 0;
    background: var(--card-bg);
    border-radius: 1.5rem;
    border: 1px solid var(--border-light);
    overflow: hidden;
}
.engagement-bar {
    display: flex;
    gap: 0.5rem;
    padding: 1rem 1.2rem;
    border-bottom: 1px solid var(--border-light);
    flex-wrap: wrap;
}
.eng-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0.5rem 1rem;
    border: 1.5px solid var(--border-light);
    border-radius: 2rem;
    background: transparent;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: 0.2s;
}
.eng-btn:hover {
    border-color: var(--primary-blue);
    background: var(--blue-light);
    color: var(--primary-blue);
}
.eng-btn .eng-count {
    background: var(--blue-bg-subtle);
    color: var(--primary-blue);
    padding: 0.1rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 1.5rem;
    text-align: center;
}
.eng-btn.liked {
    border-color: var(--primary-red);
    background: var(--red-light);
    color: var(--primary-red);
}
.eng-btn.liked .eng-count {
    background: var(--red-bg-subtle);
    color: var(--red-dark);
}
.comments-section {
    padding: 1.2rem;
}
.comments-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 1rem;
}
.comments-header h3 i { color: var(--primary-blue); }
.comment-form {
    margin-bottom: 1.5rem;
    background: #f8fafc;
    padding: 1rem;
    border-radius: 1.2rem;
    border: 1px solid var(--border-light);
}
.comment-form-row {
    margin-bottom: 0.6rem;
}
.comment-form-row input,
.comment-form-row textarea {
    width: 100%;
    padding: 0.6rem 1rem;
    border: 1.5px solid var(--border-light);
    border-radius: 0.8rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    outline: none;
    transition: 0.2s;
    background: white;
}
.comment-form-row input:focus,
.comment-form-row textarea:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px var(--blue-bg-subtle);
}
.comment-form-row textarea {
    resize: vertical;
    min-height: 60px;
}
.comments-list {
    max-height: 500px;
    overflow-y: auto;
}
.comment-placeholder {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.comment-placeholder i {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}
.comment-item {
    display: flex;
    gap: 10px;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-light);
}
.comment-item:last-child { border-bottom: none; }
.comment-avatar {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--blue-light);
    border-radius: 50%;
    color: var(--primary-blue);
    font-size: 1.5rem;
}
.comment-body {
    flex: 1;
    min-width: 0;
}
.comment-author {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}
.comment-text {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin: 0.2rem 0 0.3rem;
    line-height: 1.4;
}
.comment-time {
    font-size: 0.7rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .engagement-bar { justify-content: center; }
    .eng-btn { font-size: 0.78rem; padding: 0.4rem 0.8rem; }
}

/* --- Flash Messages --- */
.flash-container {
    position: fixed;
    top: 4.5rem;
    right: 1rem;
    z-index: 500;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 400px;
}
.flash-message {
    padding: 0.7rem 1rem;
    border-radius: 1rem;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    animation: slideIn 0.3s ease;
}
@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}
.flash-success { background: #d1fae5; color: #065f46; border-left: 4px solid #059669; }
.flash-danger  { background: #fee2e2; color: #991b1b; border-left: 4px solid #dc2626; }
.flash-info    { background: #dbeafe; color: #1e40af; border-left: 4px solid #2563eb; }
.flash-warning { background: #fef3c7; color: #92400e; border-left: 4px solid #d97706; }
.flash-close {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
    line-height: 1;
}
.flash-close:hover { opacity: 1; }

/* --- Login Page --- */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
}
.login-card {
    background: var(--card-bg);
    border-radius: 2rem;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 40px -12px rgba(26, 86, 219, 0.15);
    border: 1px solid var(--border-blue);
}
.login-card h1 {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--hero-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 0.5rem;
}
.login-card .subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}
.form-group {
    margin-bottom: 1.2rem;
}
.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 1.5px solid var(--border-light);
    border-radius: 1rem;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    transition: 0.2s;
    background: #fafcff;
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px var(--blue-bg-subtle);
    background: white;
}
.form-group textarea {
    min-height: 120px;
    resize: vertical;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.82rem;
}
.form-group .helper {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

.btn-primary {
    width: 100%;
    padding: 0.7rem;
    background: var(--hero-gradient);
    color: white;
    border: none;
    border-radius: 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
}
.btn-primary:hover {
    background: var(--hero-gradient-reverse);
    transform: scale(1.01);
}

/* --- Admin Dashboard --- */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}
.admin-sidebar {
    width: 220px;
    background: #1a1e2b;
    color: white;
    padding: 1.5rem 0;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.admin-sidebar h2 {
    font-size: 1rem;
    font-weight: 700;
    padding: 0 1.2rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.admin-sidebar h2 i { color: var(--primary-red); }
.admin-nav {
    list-style: none;
}
.admin-nav li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.6rem 1.2rem;
    color: #a0aec0;
    font-size: 0.85rem;
    transition: 0.2s;
    text-decoration: none;
}
.admin-nav li a:hover,
.admin-nav li a.active {
    background: rgba(255,255,255,0.08);
    color: white;
}
.admin-nav li a i {
    width: 1.2rem;
}
.admin-nav li a.active {
    border-left: 3px solid var(--primary-red);
}
.admin-nav-footer {
    margin-top: auto;
    padding: 1.2rem;
    border-top: 1px solid #2d3748;
}
.admin-nav-footer a {
    color: #a0aec0;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}
.admin-nav-footer a:hover { color: white; }

.admin-content {
    flex: 1;
    padding: 2rem;
    background: #f8fafc;
    min-height: 100vh;
}
.admin-content h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}
.admin-content h1 i {
    color: var(--primary-red);
    margin-right: 8px;
}

/* Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.stat-card {
    background: white;
    border-radius: 1.2rem;
    padding: 1.2rem;
    border: 1px solid var(--border-light);
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
    transition: 0.2s;
}
.stat-card:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 4px 12px rgba(26, 86, 219, 0.08);
}
.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: var(--hero-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}
.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

/* Admin Table */
.admin-table {
    width: 100%;
    background: white;
    border-radius: 1.2rem;
    overflow: hidden;
    border: 1px solid var(--border-light);
}
.admin-table th {
    background: #f8fafc;
    padding: 0.8rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border-light);
}
.admin-table td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.85rem;
    vertical-align: middle;
}
.admin-table tr:hover td {
    background: #f8fafc;
}
.admin-table .actions {
    display: flex;
    gap: 6px;
}
.admin-table .btn-sm {
    padding: 0.3rem 0.7rem;
    font-size: 0.75rem;
    border-radius: 0.6rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: 0.2s;
}
.btn-sm-edit { background: var(--blue-light); color: var(--primary-blue); }
.btn-sm-edit:hover { background: var(--primary-blue); color: white; }
.btn-sm-delete { background: #fee2e2; color: #dc2626; }
.btn-sm-delete:hover { background: #dc2626; color: white; }
.btn-sm-view { background: #f0fdf4; color: #16a34a; }
.btn-sm-view:hover { background: #16a34a; color: white; }
.btn-sm-restore { background: #fef3c7; color: #d97706; }
.btn-sm-restore:hover { background: #d97706; color: white; }
.btn-sm-toggle { background: var(--blue-light); color: var(--primary-blue); }
.btn-sm-toggle:hover { background: var(--primary-blue); color: white; }

.toolbar {
    display: flex;
    gap: 0.8rem;
    align-items: center;
    margin-bottom: 1.2rem;
    flex-wrap: wrap;
}
.toolbar .btn-primary {
    width: auto;
    padding: 0.5rem 1.2rem;
    font-size: 0.85rem;
}
.search-bar {
    display: flex;
    align-items: center;
    background: white;
    border-radius: 2rem;
    padding: 0.4rem 1rem;
    border: 1px solid var(--border-light);
    flex: 1;
    max-width: 300px;
}
.search-bar i {
    color: var(--text-muted);
    margin-right: 8px;
}
.search-bar input {
    border: none;
    outline: none;
    background: transparent;
    font-size: 0.85rem;
    font-family: 'Inter', sans-serif;
    width: 100%;
}

/* Admin Edit Page */
.edit-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}
.edit-layout .full-width {
    grid-column: 1 / -1;
}
.form-card {
    background: white;
    border-radius: 1.2rem;
    padding: 1.5rem;
    border: 1px solid var(--border-light);
    margin-bottom: 1.2rem;
}
.form-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.form-card h3 i { color: var(--primary-blue); }

.admin-content-editor {
    min-height: 400px;
    width: 100%;
    padding: 1rem;
    border: 1.5px solid var(--border-light);
    border-radius: 1rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.82rem;
    line-height: 1.6;
    resize: vertical;
}

.version-list {
    max-height: 300px;
    overflow-y: auto;
}
.version-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.8rem;
}
.version-item:last-child { border-bottom: none; }

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 1rem;
}
.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-red);
}

/* Tags / Badge Editor */
.tag-input-group {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* Category page */
.category-list {
    display: grid;
    gap: 0.8rem;
}
.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: white;
    padding: 0.8rem 1rem;
    border-radius: 1rem;
    border: 1px solid var(--border-light);
}
.category-item .cat-info {
    display: flex;
    align-items: center;
    gap: 12px;
}
.category-item .cat-info i {
    font-size: 1.2rem;
    color: var(--primary-blue);
    width: 2rem;
    text-align: center;
}
.category-item .cat-info .cat-name {
    font-weight: 600;
    font-size: 0.9rem;
}
.category-item .cat-info .cat-key {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        height: 100vh;
        z-index: 150;
        transition: left 0.3s ease;
    }
    .sidebar.open { left: 0; }
    .sidebar.collapsed { width: 70px; left: -70px; }
    .sidebar.collapsed.open { left: 0; }

    .mobile-menu-toggle { display: flex; align-items: center; justify-content: center; }

    .main-content { padding: 1.2rem; }
    .hero-section h1 { font-size: 1.8rem; }

    .article-wrapper { padding: 0; }
    .article-header h1 { font-size: 1.6rem; }
    .article-content { padding: 1.2rem; }

    .admin-sidebar { display: none; }
    .admin-content { padding: 1rem; }
    .edit-layout { grid-template-columns: 1fr; }

    .top-actions { top: 0.6rem; right: 0.6rem; }
    .lang-switch { font-size: 0.7rem; padding: 0.3rem 0.8rem; }
    .flash-container { top: 3.5rem; right: 0.6rem; max-width: 90vw; }
}

@media (max-width: 480px) {
    .hero-section h1 { font-size: 1.4rem; }
    .card-grid { gap: 1rem; }
    .doc-card { min-width: 100%; max-width: 100%; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* Scrollbar */
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: var(--blue-light); }
.sidebar::-webkit-scrollbar-thumb { background: var(--primary-blue); border-radius: 5px; }