Content Hub — AI Knowledge Base (300+ Articles)

:root {
–bg: #0a0a0f;
–surface: #12121a;
–surface2: #1a1a28;
–border: #2a2a3a;
–text: #e4e4ef;
–text-dim: #8888a0;
–accent: #6366f1;
–accent2: #818cf8;
–success: #34d399;
–warning: #fbbf24;
–danger: #f87171;
–radius: 12px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
font-family: -apple-system, BlinkMacSystemFont, ‚Segoe UI‘, system-ui, sans-serif;
background: var(–bg);
color: var(–text);
line-height: 1.6;
-webkit-font-smoothing: antialiased;
}
a { color: var(–accent2); text-decoration: none; }
a:hover { text-decoration: underline; }
#top { position: relative; }

/* Header */
.header {
background: linear-gradient(135deg, #0f0f1a 0%, #1a1040 50%, #0f1a2e 100%);
padding: 3rem 1.5rem 2rem;
text-align: center;
border-bottom: 1px solid var(–border);
}
.header h1 {
font-size: 2rem;
font-weight: 800;
background: linear-gradient(135deg, #818cf8, #6366f1, #a78bfa);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
margin-bottom: 0.5rem;
}
.header p {
color: var(–text-dim);
font-size: 1.1rem;
max-width: 600px;
margin: 0 auto;
}

/* Search */
.search-container {
max-width: 640px;
margin: 1.5rem auto 0;
}
#search-input {
width: 100%;
padding: 0.85rem 1.25rem;
border: 2px solid var(–border);
border-radius: 50px;
background: var(–surface);
color: var(–text);
font-size: 1rem;
outline: none;
transition: border-color 0.2s;
}
#search-input:focus { border-color: var(–accent); }
#search-input::placeholder { color: var(–text-dim); }

/* Stats bar */
.stats-bar {
display: flex;
justify-content: center;
gap: 2rem;
padding: 1.5rem;
background: var(–surface);
border-bottom: 1px solid var(–border);
flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-number {
display: block;
font-size: 1.5rem;
font-weight: 700;
color: var(–accent2);
}
.stat-label {
font-size: 0.8rem;
color: var(–text-dim);
text-transform: uppercase;
letter-spacing: 0.05em;
}

/* Category nav */
.category-nav {
display: flex;
flex-wrap: wrap;
gap: 0.5rem;
padding: 1rem 1.5rem;
justify-content: center;
background: var(–surface2);
border-bottom: 1px solid var(–border);
position: sticky;
top: 0;
z-index: 100;
}
.cat-pill {
display: inline-flex;
align-items: center;
gap: 0.35rem;
padding: 0.4rem 0.85rem;
background: var(–surface);
border: 1px solid var(–border);
border-radius: 50px;
color: var(–text);
font-size: 0.85rem;
text-decoration: none;
transition: all 0.2s;
white-space: nowrap;
}
.cat-pill:hover {
background: var(–accent);
border-color: var(–accent);
text-decoration: none;
}
.cat-pill .count {
background: var(–border);
padding: 0.1rem 0.45rem;
border-radius: 50px;
font-size: 0.75rem;
color: var(–text-dim);
}

/* Main content */
.main {
max-width: 1200px;
margin: 0 auto;
padding: 2rem 1.5rem;
}

/* Category cards grid */
.cat-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
gap: 1.25rem;
margin-bottom: 3rem;
}
.cat-card {
background: var(–surface);
border: 1px solid var(–border);
border-radius: var(–radius);
padding: 1.25rem;
transition: border-color 0.2s, transform 0.2s;
}
.cat-card:hover {
border-color: var(–accent);
transform: translateY(-2px);
}
.cat-card-header {
display: flex;
align-items: center;
gap: 0.5rem;
margin-bottom: 0.5rem;
}
.cat-emoji { font-size: 1.4rem; }
.cat-card-header h3 {
font-size: 1rem;
font-weight: 600;
flex: 1;
}
.cat-card-header h3 a { color: var(–text); text-decoration: none; }
.cat-count {
font-size: 0.75rem;
color: var(–text-dim);
background: var(–surface2);
padding: 0.2rem 0.5rem;
border-radius: 50px;
}
.cat-desc {
font-size: 0.85rem;
color: var(–text-dim);
margin-bottom: 0.75rem;
}
.post-list {
list-style: none;
}
.post-list li {
padding: 0.35rem 0;
border-bottom: 1px solid var(–border);
font-size: 0.85rem;
}
.post-list li:last-child { border-bottom: none; }
.post-list li a {
display: -webkit-box;
-webkit-line-clamp: 1;
-webkit-box-orient: vertical;
overflow: hidden;
}
.post-date {
color: var(–text-dim);
font-size: 0.75rem;
float: right;
margin-left: 0.5rem;
}
.more-link { font-style: italic; }

/* Full category sections */
.cat-section {
margin-bottom: 3rem;
padding-top: 2rem;
}
.cat-section h2 {
font-size: 1.35rem;
margin-bottom: 0.35rem;
padding-bottom: 0.5rem;
border-bottom: 2px solid var(–border);
}
.section-count {
font-weight: 400;
color: var(–text-dim);
font-size: 0.9em;
}
.section-desc {
color: var(–text-dim);
font-size: 0.9rem;
margin-bottom: 1rem;
}
.full-post-list {
list-style: none;
columns: 2;
column-gap: 2rem;
}
.full-post-list li {
padding: 0.4rem 0;
border-bottom: 1px solid var(–border);
font-size: 0.88rem;
break-inside: avoid;
}
.full-post-list li a {
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
overflow: hidden;
}
.back-to-top {
display: inline-block;
margin-top: 1rem;
font-size: 0.8rem;
color: var(–text-dim);
}

/* Footer */
.footer {
text-align: center;
padding: 2rem;
border-top: 1px solid var(–border);
color: var(–text-dim);
font-size: 0.85rem;
}
.footer a { color: var(–accent2); }

/* Responsive */
@media (max-width: 768px) {
.header h1 { font-size: 1.5rem; }
.cat-grid { grid-template-columns: 1fr; }
.full-post-list { columns: 1; }
.stats-bar { gap: 1rem; }
.category-nav { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; }
}

function filterPosts() {
var query = document.getElementById(’search-input‘).value.toLowerCase();
var cards = document.querySelectorAll(‚.cat-card‘);
var sections = document.querySelectorAll(‚.cat-section‘);
var totalVisible = 0;

// Filter category cards
cards.forEach(function(card) {
var text = card.textContent.toLowerCase();
var match = text.includes(query);
card.style.display = match ? “ : ’none‘;
if (match) totalVisible += card.querySelectorAll(‚.post-list li:not(.more-link)‘).length;
});

// Filter full sections
sections.forEach(function(section) {
var text = section.textContent.toLowerCase();
var match = text.includes(query);
section.style.display = match ? “ : ’none‘;
});

// If query is empty, show all
if (query === “) {
cards.forEach(function(c) { c.style.display = “; });
sections.forEach(function(s) { s.style.display = “; });
}
}