:root {
            /* Authentic Fa Chai Brand Color Palette */
            --brand-gold: #E5A93B;
            --brand-red: #C8102E;
            --brand-red-hover: #A60D25;
            --bg-ivory: #FCFBF7;
            --surface-white: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-muted: #555555;
            --border-color: #1A1A1A; /* Sharp zero-border concept relies on high contrast thin borders */
            
            /* Typography Scale (Space Grotesk System) */
            --font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            
            /* Layout & Spacing */
            --container-width: 1200px;
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 1.5rem;
            --space-lg: 2.5rem;
            --space-xl: 4rem;
        }

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg-ivory);
            color: var(--text-dark);
            line-height: 1.5;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        /* Sharp Zero-Border Container styling */
        .sharp-box {
            background: var(--surface-white);
            border: 2px solid var(--border-color);
            box-shadow: 4px 4px 0px 0px var(--border-color);
            border-radius: 0; /* Strict sharp zero-border look */
            padding: var(--space-md);
            margin-bottom: var(--space-md);
        }

        /* Typography Fluid Sizes */
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.1;
            color: var(--text-dark);
            text-transform: uppercase;
        }

        h1 { font-size: clamp(1.8rem, 5vw, 3.2rem); }
        h2 { font-size: clamp(1.4rem, 4vw, 2.2rem); border-bottom: 2px solid var(--border-color); padding-bottom: 0.5rem; margin-bottom: var(--space-md); }
        h3 { font-size: clamp(1.1rem, 3vw, 1.5rem); }

        a {
            color: var(--brand-red);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--brand-red-hover);
        }

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

        /* Accessibility Skip Link */
        .skip-link {
            position: absolute;
            top: -100px;
            left: 0;
            background: var(--brand-red);
            color: white;
            padding: 0.5rem 1rem;
            z-index: 9999;
            border: 2px solid var(--border-color);
        }
        .skip-link:focus {
            top: 0;
        }

        /* Buttons & CTAs */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand-gold);
            color: var(--text-dark);
            border: 2px solid var(--border-color);
            padding: clamp(0.6rem, 2vw, 0.9rem) clamp(1rem, 3vw, 1.8rem);
            font-size: clamp(0.85rem, 2.5vw, 1rem);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            cursor: pointer;
            box-shadow: 3px 3px 0px var(--border-color);
            transition: all 0.15s ease;
        }

        .btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 5px 5px 0px var(--border-color);
            background: var(--brand-gold);
            color: var(--text-dark);
        }

        .btn:active {
            transform: translate(1px, 1px);
            box-shadow: 2px 2px 0px var(--border-color);
        }

        .btn--cta {
            background: var(--brand-red);
            color: #FFFFFF;
        }

        .btn--cta:hover {
            background: var(--brand-red-hover);
            color: #FFFFFF;
        }

        /* Site Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface-white);
            border-bottom: 3px solid var(--border-color);
            padding: 10px var(--space-md);
        }

        .header-container {
            max-width: var(--container-width);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
        }

        .brand-logo {
            font-size: clamp(1.1rem, 4vw, 1.6rem);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: -0.5px;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 8px;
            min-width: 0;
        }

        .brand-logo span {
            background: var(--brand-red);
            color: white;
            padding: 2px 6px;
            font-size: 0.8em;
            border: 1px solid var(--border-color);
        }

        .brand-text {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-shrink: 0;
        }

        /* Navigation Toggle Button */
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid var(--border-color);
            padding: 6px;
            cursor: pointer;
            width: 40px;
            height: 40px;
            position: relative;
        }

        .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
            display: block;
            position: absolute;
            height: 3px;
            width: 24px;
            background: var(--text-dark);
            content: '';
            transition: all 0.2s ease;
        }

        .nav-toggle span { top: 17px; left: 6px; }
        .nav-toggle span::before { top: -8px; left: 0; }
        .nav-toggle span::after { bottom: -8px; left: 0; }

        .nav-toggle[aria-expanded="true"] span { background: transparent; }
        .nav-toggle[aria-expanded="true"] span::before { transform: rotate(45deg); top: 0; }
        .nav-toggle[aria-expanded="true"] span::after { transform: rotate(-45deg); bottom: 0; }

        /* Navigation Menu - Sibling after <header>, strictly compliant style */
        .site-nav {
            background: var(--brand-gold);
            border-bottom: 2px solid var(--border-color);
            padding: 8px var(--space-md);
        }

        .site-nav ul {
            max-width: var(--container-width);
            margin: 0 auto;
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-sm) var(--space-md);
            padding: 0;
        }

        .site-nav a {
            color: var(--text-dark);
            font-weight: 700;
            text-transform: uppercase;
            font-size: 0.9rem;
            padding: 4px 8px;
            border: 1px solid transparent;
        }

        .site-nav a:hover {
            background: var(--surface-white);
            border-color: var(--border-color);
        }

        /* Hero / Lead Section */
        .hero-section {
            background: var(--surface-white);
            border-bottom: 3px solid var(--border-color);
            padding: clamp(1.5rem, 5vw, 3.5rem) var(--space-md);
        }

        .hero-container {
            max-width: var(--container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
            gap: var(--space-lg);
            align-items: center;
        }

        .hero-content {
            min-width: 0;
        }

        .hero-tag {
            display: inline-block;
            background: var(--brand-red);
            color: #FFFFFF;
            font-size: 0.85rem;
            font-weight: 700;
            padding: 4px 8px;
            text-transform: uppercase;
            margin-bottom: var(--space-sm);
            border: 1px solid var(--border-color);
        }

        .hero-subline {
            font-size: clamp(1rem, 2.5vw, 1.25rem);
            color: var(--text-muted);
            margin: var(--space-sm) 0 var(--space-md) 0;
        }

        .hero-media {
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--border-color);
            background: var(--brand-gold);
            line-height: 0;
            overflow: hidden;
            max-height: 380px;
        }

        .hero-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Server Status Widget (Inside Hero) */
        .status-widget {
            margin-top: var(--space-md);
            background: var(--bg-ivory);
            border: 2px solid var(--border-color);
            padding: var(--space-sm);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }

        .status-info {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }

        .status-dot {
            width: 12px;
            height: 12px;
            background-color: #2ec4b6;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: inline-block;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(46, 196, 182, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(46, 196, 182, 0); }
            100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(46, 196, 182, 0); }
        }

        .status-label {
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
        }

        /* Main Grid Structure */
        .main-layout {
            max-width: var(--container-width);
            margin: var(--space-lg) auto;
            padding: 0 var(--space-md);
            display: grid;
            grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
            gap: var(--space-lg);
        }

        .content-column {
            min-width: 0;
        }

        .sidebar-column {
            min-width: 0;
        }

        /* Breadcrumbs */
        .breadcrumb-nav {
            margin-bottom: var(--space-md);
        }

        .breadcrumbs {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            font-size: 0.85rem;
            font-weight: 500;
            text-transform: uppercase;
        }

        .breadcrumbs li + li::before {
            content: "/";
            padding: 0 8px;
            color: var(--text-muted);
        }

        .breadcrumbs a {
            color: var(--text-muted);
        }

        /* Volatility Filter Table Widget */
        .filter-section {
            margin: var(--space-lg) 0;
        }

        .filter-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--space-sm);
            margin-bottom: var(--space-sm);
        }

        .filter-btn-group {
            display: flex;
            gap: var(--space-xs);
            flex-wrap: wrap;
        }

        .filter-tab {
            background: var(--surface-white);
            border: 2px solid var(--border-color);
            padding: 6px 12px;
            font-weight: 700;
            cursor: pointer;
            font-size: 0.8rem;
            text-transform: uppercase;
        }

        .filter-tab.active {
            background: var(--brand-gold);
        }

        .table-container {
            overflow-x: auto;
            border: 2px solid var(--border-color);
            background: var(--surface-white);
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 0.9rem;
        }

        .data-table th, .data-table td {
            padding: 12px;
            border-bottom: 2px solid var(--border-color);
            border-right: 1px solid var(--border-color);
        }

        .data-table th {
            background: var(--brand-gold);
            font-weight: 700;
            text-transform: uppercase;
        }

        .data-table tr:last-child td {
            border-bottom: none;
        }

        .data-table tr:hover {
            background: var(--bg-ivory);
        }

        .badge {
            display: inline-block;
            padding: 2px 6px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            border: 1px solid var(--border-color);
        }

        .badge--high { background: var(--brand-red); color: white; }
        .badge--medium { background: var(--brand-gold); color: var(--text-dark); }
        .badge--low { background: #2ec4b6; color: white; }

        /* FAQ Accordion Widget */
        .faq-section {
            margin: var(--space-lg) 0;
        }

        .faq-item {
            border: 2px solid var(--border-color);
            background: var(--surface-white);
            margin-bottom: var(--space-sm);
        }

        .faq-trigger {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: var(--space-sm);
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            font-family: var(--font-family);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            text-transform: uppercase;
        }

        .faq-icon::before {
            content: '+';
            font-size: 1.5rem;
            font-weight: 700;
        }

        .faq-item.open .faq-icon::before {
            content: '−';
        }

        .faq-content {
            display: none;
            padding: 0 var(--space-sm) var(--space-sm) var(--space-sm);
            border-top: 1px solid var(--border-color);
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        .faq-item.open .faq-content {
            display: block;
        }

        /* Sidebar CTA & Nav Cards */
        .sidebar-card {
            background: var(--surface-white);
            border: 2px solid var(--border-color);
            box-shadow: 4px 4px 0px var(--border-color);
            padding: var(--space-md);
            margin-bottom: var(--space-md);
        }

        .sidebar-card h3 {
            margin-bottom: var(--space-sm);
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 4px;
        }

        .slot-nav-list {
            list-style: none;
            margin-top: var(--space-sm);
        }

        .slot-nav-list li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
        }

        .slot-nav-list li:last-child {
            border-bottom: none;
        }

        .slot-nav-list a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-dark);
        }

        .slot-nav-list a:hover {
            color: var(--brand-red);
        }

        /* Article Markdown Container Safeguards */
        article {
            min-width: 0;
            overflow-wrap: anywhere;
            word-break: break-word;
        }

        article p {
            margin-bottom: var(--space-sm);
            line-height: 1.6;
        }

        article img, article video, article iframe, article svg {
            max-width: 100%;
            height: auto;
            display: block;
            border: 2px solid var(--border-color);
            margin: var(--space-md) 0;
        }

        article table {
            display: block;
            overflow-x: auto;
            max-width: 100%;
            border-collapse: collapse;
            margin: var(--space-md) 0;
            border: 2px solid var(--border-color);
        }

        article th, article td {
            padding: clamp(8px, 2vw, 12px);
            border: 1px solid var(--border-color);
        }

        article pre {
            overflow-x: auto;
            max-width: 100%;
            background: var(--text-dark);
            color: #FFFFFF;
            padding: var(--space-sm);
            border: 2px solid var(--border-color);
            margin-bottom: var(--space-sm);
        }

        article code {
            word-break: break-word;
            font-family: monospace;
            background: rgba(0,0,0,0.05);
            padding: 2px 4px;
        }

        /* Sticky Bottom CTA Bar for Mobile Thumb Zone */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--surface-white);
            border-top: 3px solid var(--border-color);
            padding: 10px var(--space-md);
            z-index: 999;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--space-sm);
        }

        .sticky-info {
            min-width: 0;
        }

        .sticky-title {
            font-weight: 700;
            text-transform: uppercase;
            font-size: 0.85rem;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .sticky-sub {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Site Footer */
        .site-footer {
            background: var(--surface-white);
            border-top: 3px solid var(--border-color);
            padding: var(--space-xl) var(--space-md) calc(var(--space-xl) + 40px) var(--space-md);
            margin-top: var(--space-xl);
        }

        .footer-container {
            max-width: var(--container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: var(--space-lg);
        }

        .footer-col h4 {
            margin-bottom: var(--space-sm);
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 4px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col a {
            color: var(--text-muted);
        }

        .footer-col a:hover {
            color: var(--brand-red);
        }

        .disclaimer-box {
            grid-column: 1 / -1;
            background: var(--bg-ivory);
            border: 2px solid var(--border-color);
            padding: var(--space-sm);
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: var(--space-md);
        }

        .bottom-bar {
            max-width: var(--container-width);
            margin: var(--space-lg) auto 0 auto;
            padding-top: var(--space-sm);
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--space-sm);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Adaptive Mobile First Layout overrides */
        @media (max-width: 768px) {
            :root {
                --space-lg: 1.5rem;
                --space-xl: 2.5rem;
            }

            .hero-container {
                grid-template-columns: minmax(0, 1fr);
                gap: var(--space-md);
            }

            .main-layout {
                grid-template-columns: minmax(0, 1fr);
                gap: var(--space-lg);
            }

            .site-nav {
                display: none; /* Collapsed by default on mobile */
            }

            .site-nav.site-nav--open {
                display: block;
            }

            .site-nav ul {
                flex-direction: column;
                gap: var(--space-xs);
            }

            .nav-toggle {
                display: block;
            }

            .header-actions .btn {
                display: none; /* Move primary emphasis to sticky bar on phone screen */
            }
        }
    
/* engine safety: menu must never be trapped in sticky/fixed */
.site-nav,.site-nav *{position:static !important}


html{ -webkit-text-size-adjust:100%; text-size-adjust:100%; }
body{ overflow-x:hidden; }
img,video,iframe,svg{ max-width:100%; height:auto; }
main,article,section,aside,header,nav,footer{ min-width:0; }
@media (max-width:768px){
  [class*="layout"],[class*="container"],[class*="grid"],[class*="content"],[class*="wrapper"],[class*="main"],[class*="row"]{ min-width:0; }
  pre,table{ min-width:0; max-width:100%; }
  pre{ overflow-x:auto; }
  table{ display:block; overflow-x:auto; }
  code,kbd,samp{ word-break:break-word; }
  [class*="ticker"]{ overflow:hidden; }
  [class*="ticker"] *{ min-width:0; }
}