:root {
    --yellow: #faff69;
    --yellow-active: #e6eb52;
    --canvas: #0a0a0a;
    --surface-card: #1a1a1a;
    --surface-elevated: #242424;
    --hairline: #2a2a2a;
    --muted: #888888;
    --body-c: #cccccc;
}

body { font-family: 'Inter', sans-serif; }

.hub-sidebar {
    width: 260px;
    flex-shrink: 0;
    background: var(--canvas);
    border-right: 1px solid var(--hairline);
    padding: 32px 24px;
}
.hub-sidebar-inner { position: sticky; top: 32px; }
.hub-brand { display: block; font-weight: 700; font-size: 20px; letter-spacing: -0.5px; margin-bottom: 32px; color: #fff; }
.hub-brand span { color: var(--yellow); }
.hub-nav { display: flex; flex-direction: column; gap: 4px; }
.hub-nav-link { color: var(--muted); font-size: 14px; font-weight: 500; padding: 8px 10px; border-radius: 8px; }
.hub-nav-link:hover, .hub-nav-link.active { background: var(--surface-card); color: #fff; }
.hub-nav-divider { border-top: 1px solid var(--hairline); margin: 24px 0 16px; }
.hub-sidebar-label { font-size: 12px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); margin-bottom: 12px; font-weight: 600; }

.hub-menu-toggle { display: none; position: fixed; top: 16px; right: 16px; z-index: 60; background: var(--surface-card); color: #fff; border: none; border-radius: 8px; width: 40px; height: 40px; font-size: 18px; }

.hub-main { flex: 1; min-width: 0; padding: 48px 48px; max-width: 1100px; }

h1, h2, h3 { font-weight: 700; letter-spacing: -1px; color: #fff; }

.hub-hero-eyebrow { color: var(--yellow); font-size: 13px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; }
.hub-hero h1 { font-size: 40px; line-height: 1.15; margin: 16px 0 20px; letter-spacing: -1.5px; }
.hub-hero p.lead { color: var(--body-c); font-size: 17px; max-width: 640px; }

.hub-img-frame { border-radius: 12px; overflow: hidden; margin: 28px 0; border: 1px solid var(--hairline); }
.hub-img-frame img { width: 100%; display: block; }

.hub-section-title { font-size: 26px; margin: 40px 0 20px; }

.hub-card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.hub-card {
    background: var(--surface-card);
    border-radius: 12px;
    padding: 24px;
    display: block;
    color: #fff;
    border: 1px solid var(--hairline);
}
.hub-card:hover { border-color: #3a3a3a; }
.hub-card .tag {
    display: inline-block;
    background: var(--surface-elevated);
    color: var(--body-c);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 3px 10px;
    border-radius: 9999px;
    margin-bottom: 12px;
}
.hub-card h3 { font-size: 17px; margin-bottom: 8px; letter-spacing: -0.3px; }
.hub-card p { color: var(--body-c); font-size: 14px; margin: 0; font-weight: 400; }

.hub-stat-band { display: flex; gap: 40px; flex-wrap: wrap; margin: 32px 0; }
.hub-stat { color: var(--yellow); font-size: 40px; font-weight: 700; letter-spacing: -1px; }
.hub-stat span { display: block; color: var(--muted); font-size: 13px; font-weight: 500; margin-top: 4px; letter-spacing: 0; }

.hub-breadcrumb { padding: 14px 0; border-bottom: 1px solid var(--hairline); margin-bottom: 24px; }
.hub-breadcrumb ol { list-style: none; display: flex; gap: 8px; margin: 0; padding: 0; font-size: 13px; flex-wrap: wrap; }
.hub-breadcrumb li:not(:last-child)::after { content: '/'; margin-left: 8px; color: var(--muted); }
.hub-breadcrumb a { color: var(--muted); }
.hub-breadcrumb .current { color: #fff; }

.hub-article-layout { display: flex; gap: 36px; }
.hub-article-main { flex: 1; min-width: 0; }
.hub-article-main h2 { font-size: 22px; margin-top: 32px; margin-bottom: 12px; letter-spacing: -0.5px; }
.hub-article-main p { color: var(--body-c); margin-bottom: 16px; font-weight: 400; }
.hub-article-head h1 { font-size: 30px; margin-bottom: 10px; }
.hub-article-meta { color: var(--muted); font-size: 13px; margin-bottom: 24px; }

.hub-toc { width: 230px; flex-shrink: 0; background: var(--surface-card); border-radius: 12px; padding: 20px; align-self: flex-start; position: sticky; top: 24px; }
.hub-toc h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin-bottom: 12px; }
.hub-toc ul { list-style: none; padding: 0; margin: 0; }
.hub-toc li { margin-bottom: 8px; }
.hub-toc a { font-size: 13px; color: var(--body-c); }
.hub-toc a:hover { color: var(--yellow); }

.hub-related { margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--hairline); }
.hub-related h2 { font-size: 20px; margin-bottom: 16px; }
.hub-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.hub-related-tile { display: block; background: var(--surface-card); border-radius: 10px; padding: 16px; color: #fff; }
.hub-related-tile .tag { color: var(--yellow); font-size: 11px; text-transform: uppercase; letter-spacing: 0.8px; }
.hub-related-tile h3 { font-size: 14px; margin: 8px 0; letter-spacing: -0.2px; }
.hub-related-tile p { color: var(--muted); font-size: 12px; margin: 0; }

.hub-faq-item { background: var(--surface-card); border-radius: 8px; padding: 16px 18px; margin-bottom: 10px; }
.hub-faq-item summary { cursor: pointer; font-weight: 600; color: #fff; list-style: none; font-size: 14px; }
.hub-faq-item summary::-webkit-details-marker { display: none; }
.hub-faq-item summary::before { content: '+'; color: var(--yellow); margin-right: 10px; font-weight: 700; }
.hub-faq-item[open] summary::before { content: '−'; }
.hub-faq-item p { color: var(--body-c); margin: 10px 0 0; font-size: 14px; }

.hub-btn { display: inline-block; border: none; border-radius: 8px; padding: 11px 20px; font-size: 14px; font-weight: 600; cursor: pointer; }
.hub-btn-primary { background: var(--yellow); color: #0a0a0a; }
.hub-btn-primary:hover { background: var(--yellow-active); }
.hub-btn-outline { background: transparent; border: 1px solid var(--hairline); color: #fff; }

.hub-form-group { margin-bottom: 16px; }
.hub-form-group label { display: block; font-size: 13px; color: var(--body-c); margin-bottom: 6px; font-weight: 500; }
.hub-form-group input, .hub-form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--hairline);
    border-radius: 8px;
    background: var(--surface-card);
    color: #fff;
    font-size: 14px;
}
.hub-form-group input:focus, .hub-form-group textarea:focus { outline: none; border-color: var(--yellow); }
.hub-form-status { margin-top: 14px; padding: 12px 16px; border-radius: 8px; background: rgba(34,197,94,0.15); color: #4ade80; display: none; font-size: 14px; }
.hub-form-status.show { display: block; }

.hub-footer { border-top: 1px solid var(--hairline); padding: 40px 48px; color: var(--muted); font-size: 13px; }
.hub-footer-disclaimer { max-width: 700px; margin-bottom: 16px; }
.hub-footer-links { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 12px; }
.hub-footer-links a { color: var(--muted); }
.hub-footer-links a:hover { color: var(--yellow); }
.hub-footer-copy { color: #5a5a5a; }

.hub-cookie {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    max-width: 640px;
    margin: 0 auto;
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 18px 20px;
    display: none;
    z-index: 999;
}
.hub-cookie.show { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; justify-content: space-between; }
.hub-cookie p { font-size: 13px; color: var(--body-c); margin: 0; flex: 1; min-width: 200px; }

@media (max-width: 900px) {
    .hub-sidebar { position: fixed; left: -280px; top: 0; bottom: 0; z-index: 55; transition: left 0.2s ease; width: 260px; }
    .hub-sidebar.open { left: 0; }
    .hub-menu-toggle { display: block; }
    .hub-main { padding: 64px 20px 40px; }
    .hub-card-grid, .hub-related-grid { grid-template-columns: 1fr; }
    .hub-article-layout { flex-direction: column; }
    .hub-toc { width: 100%; position: static; }
    .hub-footer { padding: 32px 20px; }
}