/* ==========================================================================
   THE RELIGION OF AI // V3.5 (MASTER STYLESHEET)
   ========================================================================== */

/* 
   FONTS:
   - Space Grotesk: Brutalist, calculating brand headers
   - Inter: Clean, neutral UI and feed navigation
   - JetBrains Mono: Clinical, technical meta-data
   - Crimson Pro: Highly readable, elegant editorial body text
*/
@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:ital,wght@0,300;0,400;0,600;1,400&family=Inter:wght@300;400;500&family=JetBrains+Mono:wght@400;700&family=Space+Grotesk:wght@500;700&display=swap');

:root {
    --bg-color: #F7F7F6;
    --text-primary: #0A0A0A;
    --text-secondary: #555555; 
    --text-tertiary: #888888;
    --border-color: #D6D6D5;
    --border-heavy: #0A0A0A;
    
    --font-brand: 'Space Grotesk', sans-serif;
    --font-sans: 'Inter', sans-serif; 
    --font-mono: 'JetBrains Mono', monospace;
    --font-serif: 'Crimson Pro', Georgia, "Times New Roman", serif;

    --max-width: 1200px;
    --reading-width: 65ch;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* --------------------------------------------------
   HEADER & DUAL-TIER NAVIGATION
   -------------------------------------------------- */
.site-header {
    padding: 2.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-bottom: 1px solid var(--border-heavy);
    margin-bottom: 3rem;
    position: relative;
}

.brand-title {
    font-family: var(--font-brand);
    font-size: 2.5rem; 
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: -0.04em;
    text-transform: uppercase;
}

.mobile-menu-toggle { display: none; }
.mobile-menu-btn {
    display: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    border: 1px solid var(--border-heavy);
    padding: 0.5rem 1rem;
    text-transform: uppercase;
}

.site-nav {
    display: flex;
    gap: 3rem;
}

.nav-item {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: transparent;
    transition: background-color 0.2s ease;
}

.nav-item:hover::after, .nav-item.active::after {
    background-color: var(--text-primary);
}

.nav-title {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-sub {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-tertiary);
}

/* --------------------------------------------------
   PAGE TYPOGRAPHY (General)
   -------------------------------------------------- */
.page-header {
    margin-bottom: 2rem;
}

.page-title {
    font-family: var(--font-brand);
    font-size: 2rem; 
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.page-description {
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: var(--reading-width);
}

/* --------------------------------------------------
   HIGH-DENSITY DIAGNOSTIC FEED
   -------------------------------------------------- */
.feed-day-group { margin-bottom: 3rem; }

.feed-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-primary);
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.feed-list { list-style: none; }

.feed-item {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding: 0.4rem 0; 
}

.item-number {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-tertiary);
    min-width: 2.5rem;
    text-align: right;
}

.item-title {
    font-family: var(--font-sans);
    font-size: 1.05rem; 
    color: var(--text-primary);
    text-decoration: none;
}

.item-title:hover {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
}

.item-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-left: auto; /* Pushes the date cleanly to the right edge */
    padding-left: 1rem;
    white-space: nowrap;
}

/* Shared Pagination / Archive Links */
.archive-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    border-top: 1px solid var(--border-heavy);
    padding-top: 2rem;
    margin-top: 4rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.archive-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.archive-links a:hover, .archive-links a.active {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 4px;
}

/* --------------------------------------------------
   ARTICLE VIEW / LONG-FORM READING
   -------------------------------------------------- */
.article-container {
    max-width: var(--reading-width);
    margin: 0 auto 5rem auto;
}

.article-back {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-decoration: none;
    margin-bottom: 2rem;
}

.article-back:hover { color: var(--text-primary); }

.article-meta {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.article-body h1 {
    font-family: var(--font-brand);
    font-size: 2.75rem;
    line-height: 1.1;
    margin-bottom: 2.5rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.article-body h2, .article-body h3 {
    font-family: var(--font-brand);
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.article-body p {
    font-family: var(--font-serif);
    font-size: 1.15rem;       
    line-height: 1.75;        
    margin-bottom: 1.75rem;   
    color: #1A1A1A;           
}

.mantra-heading {
    font-family: var(--font-brand);
    margin-top: 4rem;
    color: var(--text-primary);
    font-size: 1.5rem;
    letter-spacing: -0.01em;
}

/* --------------------------------------------------
   DOCUMENTATION GRID (docs.html)
   -------------------------------------------------- */
.docs-layout {
    display: grid;
    grid-template-columns: 300px minmax(auto, var(--reading-width));
    gap: 5rem;
    align-items: start;
    margin-top: 2rem;
    padding-bottom: 5rem;
    justify-content: center; 
}

.toc-sidebar {
    position: sticky;
    top: 2rem;
    max-height: calc(100vh - 4rem);
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
    padding-right: 2rem;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.toc-sidebar::-webkit-scrollbar { width: 4px; }
.toc-sidebar::-webkit-scrollbar-thumb { background-color: var(--border-color); }

.toc-header {
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-heavy);
    padding-bottom: 0.5rem;
}

.toc-title {
    font-family: var(--font-brand);
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.toc-nav ul { list-style: none; padding: 0; margin: 0; }
.toc-nav > ul > li { margin-top: 1.5rem; }
.toc-nav ul ul { margin-top: 0.5rem; margin-left: 1rem; border-left: 1px solid var(--border-color); padding-left: 1rem; }
.toc-nav li { margin-bottom: 0.75rem; }

.toc-nav a {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    text-decoration: none;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.4;
    transition: color 0.2s ease;
}

.toc-nav a:hover { color: var(--text-primary); }
.toc-nav a span:first-child { flex: 1; padding-right: 1rem; }
.toc-page-num { color: var(--text-tertiary); }
.toc-page-num::before { content: '['; }
.toc-page-num::after { content: ']'; }

.ebook-container { max-width: var(--reading-width); }

.cover-page {
    margin-bottom: 6rem;
    border-bottom: 1px solid var(--border-heavy);
    padding-bottom: 4rem;
}

.ebook-title {
    font-family: var(--font-brand);
    font-size: 4rem;
    line-height: 1;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.ebook-subtitle {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.ebook-author {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.chapter { margin-bottom: 6rem; }

.chapter-main-title {
    font-family: var(--font-brand);
    font-size: 2.5rem;
    border-bottom: 2px solid var(--border-heavy);
    padding-bottom: 1rem;
    margin-bottom: 2.5rem;
}

.chapter-content h3 {
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 500;
    margin-top: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.chapter-content p {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    line-height: 1.75;
    margin-bottom: 1.75rem;
    color: #1A1A1A;
}

.toc-mobile-toggle { display: none; }

/* --------------------------------------------------
   HVE REGISTRY (Vulnerabilities)
   -------------------------------------------------- */
.hve-container {
    max-width: var(--reading-width);
    margin: 0 auto 5rem auto;
}

.hve-list {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.hve-card {
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    background-color: #FFFFFF;
}

.hve-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-heavy);
    padding-bottom: 0.75rem;
}

.hve-id {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: 0.05em;
}

.hve-card h2 {
    font-family: var(--font-brand);
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hve-desc {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hve-mitigation {
    background-color: var(--bg-color);
    padding: 1.5rem;
    border-left: 3px solid var(--text-primary);
}

.hve-mitigation-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 0.75rem;
    letter-spacing: 0.05em;
}

.hve-mitigation p {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 0;
}

/* --------------------------------------------------
   RESPONSIVE DESIGN (Mobile)
   -------------------------------------------------- */
@media (max-width: 1000px) {
    .site-header { align-items: center; }
    .mobile-menu-btn { display: block; }
    .site-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-color);
        flex-direction: column;
        gap: 0;
        border-bottom: 1px solid var(--border-heavy);
        z-index: 10;
    }
    .mobile-menu-toggle:checked ~ .site-nav { display: flex; }
    .nav-item { padding: 1.5rem; border-top: 1px solid var(--border-color); }
    
    .docs-layout { grid-template-columns: 1fr; gap: 2rem; }
    .toc-sidebar {
        position: static;
        max-height: none;
        border-right: none;
        padding-right: 0;
        border-bottom: 1px solid var(--border-heavy);
        padding-bottom: 2rem;
        margin-bottom: 2rem;
    }
    .ebook-title { font-size: 3rem; }
    .hve-card { padding: 1.5rem; }
}