* { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: dark; }
html[data-theme="light"] { color-scheme: light; }
[hidden] { display: none !important; }
body {
  margin: 0;
  color: var(--gr-text);
  background:
    radial-gradient(circle at 12% 6%, rgba(59, 130, 246, .13), transparent 30rem),
    radial-gradient(circle at 88% 22%, rgba(167, 119, 227, .1), transparent 28rem),
    var(--gr-page);
  font-family: var(--gr-font-sans);
  -webkit-font-smoothing: antialiased;
  transition: background-color 180ms ease, color 180ms ease;
}
a { color: inherit; }
button { font: inherit; }
.container { width: min(var(--gr-content-width), calc(100% - 40px)); margin: 0 auto; }
.topbar { position: sticky; top: 0; z-index: 30; background: var(--gr-header); border-bottom: 1px solid var(--gr-line); backdrop-filter: blur(18px); }
.topbar-inner { min-height: 66px; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 26px; }
.brand img { display: block; width: auto; height: 32px; }
[data-theme="light"] .brand img { filter: none; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: var(--gr-text-soft); font-size: .75rem; font-weight: 800; letter-spacing: .07em; text-decoration: none; text-transform: uppercase; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--gr-text); }
.theme-toggle { display: inline-flex; width: 42px; height: 42px; align-items: center; justify-content: center; padding: 0; border: 1px solid var(--gr-line); border-radius: 12px; background: var(--gr-surface-subtle); color: var(--gr-text); cursor: pointer; }
.theme-toggle:hover { border-color: rgba(96, 165, 250, .55); }
.theme-icon { width: 20px; height: 20px; }
.theme-icon-sun { display: none; }
[data-theme="light"] .theme-icon-moon { display: none; }
[data-theme="light"] .theme-icon-sun { display: block; }
.eyebrow { color: var(--gr-colour-blue-light); font-size: .75rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
h1, h2 { margin-top: 0; font-family: var(--gr-font-display); font-weight: 400; }
h1 { font-size: clamp(2.4rem, 4vw, 3.7rem); line-height: 1; letter-spacing: -.025em; }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.35rem); line-height: 1.08; }
h3 { margin: 0; font-size: 1rem; line-height: 1.3; }
p { color: var(--gr-text-soft); line-height: 1.65; }
.hub-main { min-height: calc(100vh - 66px); }
.hub-intro { display: flex; align-items: end; justify-content: space-between; gap: 28px; padding: 28px 0 20px; }
.hub-intro h1 { margin: 2px 0 0; }
.hub-intro p { max-width: 470px; margin: 0 0 5px; text-align: right; }
.filter-bar { display: flex; gap: 9px; overflow-x: auto; padding: 0 0 18px; scrollbar-width: none; }
.filter-bar::-webkit-scrollbar { display: none; }
.filter-pill { flex: 0 0 auto; min-height: 34px; padding: 0 14px; border: 1px solid var(--gr-line); border-radius: 999px; background: rgba(59, 130, 246, .055); color: var(--gr-text-soft); cursor: pointer; font-size: .78rem; font-weight: 700; }
.filter-pill:hover { color: var(--gr-text); border-color: rgba(96, 165, 250, .4); }
.filter-pill.is-active { color: #fff; border-color: var(--gr-colour-blue); background: var(--gr-colour-blue); }
.hub-layout { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(310px, .72fr); gap: 22px; align-items: start; padding-bottom: 72px; }
.content-column { min-width: 0; }
.content-heading { display: flex; justify-content: space-between; gap: 18px; margin-bottom: 14px; }
.content-heading h2 { margin: 5px 0 0; }
.article-stream { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.article-card { display: flex; min-height: 252px; flex-direction: column; padding: 22px; border: 1px solid var(--gr-line); border-radius: 14px; background: var(--gr-surface); color: inherit; text-decoration: none; box-shadow: var(--gr-shadow); transition: transform 160ms ease, border-color 160ms ease; }
.story-image { width: calc(100% + 44px); height: 180px; margin: -22px -22px 18px; object-fit: cover; border-radius: 13px 13px 0 0; }
.article-card.is-clickable:hover { transform: translateY(-2px); border-color: rgba(96, 165, 250, .38); }
.story-meta { display: flex; align-items: center; gap: 10px; color: var(--gr-text-soft); font-size: .75rem; font-weight: 700; }
.category-tag { display: inline-flex; align-items: center; min-height: 25px; padding: 0 9px; border-radius: 999px; background: rgba(59, 130, 246, .12); color: var(--gr-colour-blue-light); font-size: .75rem; font-weight: 800; }
.story-copy { display: flex; flex: 1; flex-direction: column; justify-content: flex-end; }
.article-card h2 { margin: 34px 0 10px; font-size: 1.65rem; }
.article-card p { margin: 0 0 18px; font-size: .9rem; }
.spotlight-story { position: relative; min-height: 350px; grid-column: 1 / -1; overflow: hidden; padding: 28px; border-color: rgba(96, 165, 250, .25); background: radial-gradient(circle at 90% 12%, rgba(167, 119, 227, .3), transparent 17rem), linear-gradient(135deg, #111d32, #020617); color: #f8fafc; }
.spotlight-story .story-image { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; border-radius: 0; opacity: .34; }
.spotlight-story .story-meta, .spotlight-story p { color: #a7b2c4; }
.spotlight-story .story-meta, .spotlight-story .story-copy { position: relative; z-index: 1; }
.spotlight-story .story-copy { max-width: 690px; }
.spotlight-story h2 { max-width: 650px; font-size: clamp(2.35rem, 4.8vw, 4rem); }
.secondary-story { min-height: 276px; }
.story-link, .coming-soon { margin-top: auto; color: var(--gr-colour-blue-light); font-size: .75rem; font-weight: 800; letter-spacing: .06em; text-decoration: none; text-transform: uppercase; }
.coming-soon { display: inline-flex; align-items: center; gap: 8px; color: var(--gr-text-soft); }
.coming-soon::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--gr-colour-amber); }
.spotlight-story .coming-soon { color: #cbd5e1; }
.empty-filter { padding: 36px; border: 1px dashed var(--gr-line); text-align: center; }
.right-rail { position: sticky; top: 82px; display: grid; gap: 14px; }
.rail-card { padding: 20px; border: 1px solid var(--gr-line); border-radius: 14px; background: var(--gr-surface); box-shadow: var(--gr-shadow); }
.rail-card h2 { margin: 5px 0 8px; font-size: 1.55rem; }
.rail-card p { margin: 0; font-size: .85rem; }
.quiz-widget { overflow: hidden; border-color: rgba(96, 165, 250, .28); background: linear-gradient(140deg, rgba(59, 130, 246, .17), rgba(139, 92, 246, .1)), var(--gr-surface-solid); }
.need-to-know-card { border-color: rgba(167, 119, 227, .3); background: linear-gradient(145deg, rgba(139, 92, 246, .15), rgba(167, 119, 227, .055)), var(--gr-surface-solid); }
.need-to-know-card .eyebrow, .need-to-know-card .rail-category { color: var(--gr-colour-purple); }
.quiz-time { display: block; margin: 14px 0; color: var(--gr-text-soft); font-size: .75rem; font-weight: 700; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 17px; border: 1px solid transparent; border-radius: 6px; cursor: pointer; font-size: .75rem; font-weight: 800; letter-spacing: .06em; text-decoration: none; text-transform: uppercase; }
.button-primary { background: var(--gr-colour-blue); color: #fff; }
.button-primary:hover { background: #2563eb; }
.button-secondary { border-color: var(--gr-line); background: var(--gr-surface-subtle); color: var(--gr-text); }
.button[disabled] { cursor: not-allowed; opacity: .7; }
.rail-heading { display: flex; align-items: start; justify-content: space-between; gap: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--gr-line); }
.rail-heading h2 { margin-bottom: 0; }
.rail-heading > a { color: var(--gr-colour-blue-light); font-size: .75rem; font-weight: 800; text-decoration: none; text-transform: uppercase; }
.rail-list { display: grid; }
.rail-item { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 15px 0; border-bottom: 1px solid var(--gr-line); }
.rail-item.is-clickable { color: inherit; text-decoration: none; transition: color 160ms ease, background-color 160ms ease; }
.rail-item.is-clickable:hover h3 { color: var(--gr-colour-purple); }
.article-card.is-clickable:focus-visible, .rail-item.is-clickable:focus-visible { outline: 3px solid var(--gr-colour-blue-light); outline-offset: 3px; }
.rail-item:last-child { padding-bottom: 0; border-bottom: 0; }
.rail-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; color: var(--gr-text-soft); font-size: .68rem; font-weight: 700; }
.rail-category { color: var(--gr-colour-blue-light); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.rail-item h3 { margin: 5px 0 4px; }
.rail-item p { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; font-size: .78rem; }
.rail-item > a, .rail-item > span { align-self: center; color: var(--gr-text-soft); font-size: .7rem; font-weight: 800; text-decoration: none; text-transform: uppercase; }
.tools-rail ul { margin: 0; padding: 0; list-style: none; }
.tools-rail li { border-bottom: 1px solid var(--gr-line); }
.tools-rail li:last-child { border: 0; }
.tools-rail li a { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 11px 0; text-decoration: none; }
.tools-rail li span { font-size: .82rem; font-weight: 700; }
.tools-rail li small { color: var(--gr-text-soft); font-size: .68rem; font-weight: 700; text-transform: uppercase; }
.tool-hero { padding: 56px 0 42px; border-bottom: 1px solid var(--gr-line); }
.tool-hero h1 { margin: 12px 0 16px; font-size: clamp(2.7rem, 6vw, 4.8rem); }
.hero-copy { max-width: 760px; font-size: 1rem; }
.tool-hero + section { padding: 54px 0 72px; }
section:not(.content-column):not(.rail-card) { border-bottom: 1px solid var(--gr-line); }
.tool-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.tool-card, .panel { padding: 24px; border: 1px solid var(--gr-line); border-radius: 14px; background: var(--gr-surface); box-shadow: var(--gr-shadow); }
.panel { max-width: 760px; }
.tool-card h3 { margin-top: 14px; font-size: 1.1rem; }
.tool-card p { font-size: .9rem; }
.tool-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.badge { display: inline-flex; align-items: center; min-height: 26px; padding: 0 9px; border-radius: 999px; background: rgba(59, 130, 246, .1); color: var(--gr-colour-blue-light); font-size: .72rem; font-weight: 800; text-transform: uppercase; }
.text-link { color: var(--gr-colour-blue-light); font-size: .75rem; font-weight: 800; text-decoration: none; text-transform: uppercase; }
.notice { margin-top: 20px; padding: 17px; border: 1px solid rgba(96, 165, 250, .25); background: rgba(59, 130, 246, .07); color: var(--gr-text-soft); line-height: 1.6; }
.article-page { max-width: 820px; padding-top: 58px; padding-bottom: 86px; }
.article-page header { padding: 52px 0 42px; border-bottom: 1px solid var(--gr-line); }
.article-page h1 { margin: 16px 0 18px; font-size: clamp(3rem, 7vw, 5.4rem); }
.article-deck { font-size: 1.14rem; }
.article-hero-image { display: block; width: 100%; max-height: 520px; margin-top: 32px; border-radius: 14px; object-fit: cover; }
.back-link { color: var(--gr-colour-blue-light); font-size: .8rem; font-weight: 800; text-decoration: none; }
.article-body { padding-top: 38px; }
.answer-panel { margin: 26px 0 10px; padding: 20px 22px; border: 1px solid color-mix(in srgb, var(--gr-colour-blue) 38%, var(--gr-line)); border-radius: 14px; background: color-mix(in srgb, var(--gr-colour-blue) 8%, var(--gr-surface)); }
.answer-panel .eyebrow { display: block; margin-bottom: 8px; }
.answer-panel p { margin: 0; color: var(--gr-text); font-size: 1rem; font-weight: 600; line-height: 1.65; }
.source-note { margin: 14px 0 4px; color: var(--gr-text-muted); font-size: .82rem; }
.source-note a { color: inherit; text-underline-offset: 3px; }
.related-reading { margin-top: 48px; padding: 28px; border: 1px solid var(--gr-line); border-radius: 18px; background: var(--gr-surface-subtle); }
.related-reading h2 { margin: 7px 0 18px; font-size: 1.7rem; }
.related-reading-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.related-reading-list a { display: flex; min-width: 0; flex-direction: column; gap: 8px; padding: 16px; border: 1px solid var(--gr-line); border-radius: 12px; background: var(--gr-surface); color: var(--gr-text); text-decoration: none; transition: transform 160ms ease, border-color 160ms ease; }
.related-reading-list a:hover { border-color: var(--gr-colour-blue); transform: translateY(-1px); }
.related-reading-list span { color: var(--gr-colour-blue-light); font-size: .68rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.related-reading-list strong { line-height: 1.4; }
.related-reading-list small { color: var(--gr-text-muted); font-size: .78rem; line-height: 1.55; }
.article-body p, .article-body li { color: var(--gr-text-soft); font-size: 1.04rem; line-height: 1.8; }
.article-body a { color: var(--gr-colour-blue-light); text-underline-offset: 3px; }
.article-inline-cta a { display: inline-flex; min-height: 46px; align-items: center; padding: 0 19px; border-radius: 7px; background: var(--gr-colour-blue); color: #fff; font-size: .78rem; font-weight: 800; letter-spacing: .05em; text-decoration: none; text-transform: uppercase; }
.article-inline-cta a:hover { background: #2563eb; }
.article-body h2 { margin-top: 48px; }
.article-body blockquote { margin: 34px 0; padding: 10px 0 10px 24px;  color: var(--gr-text); font-family: var(--gr-font-display); font-size: 1.5rem; line-height: 1.5; }
.article-table-wrap { margin: 30px 0; overflow-x: auto; border: 1px solid var(--gr-line); border-radius: 12px; background: var(--gr-surface); }
.article-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.article-table th, .article-table td { padding: 16px 18px; border-bottom: 1px solid var(--gr-line); text-align: left; vertical-align: top; }
.article-table th { background: var(--gr-surface-subtle); color: var(--gr-text); font-size: .78rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.article-table td { color: var(--gr-text-soft); font-size: .94rem; line-height: 1.6; }
.article-table tbody tr:last-child td { border-bottom: 0; }
.post-navigation { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--gr-line); }
.post-nav-card { display: flex; overflow: hidden; flex-direction: column; border: 1px solid var(--gr-line); border-radius: 14px; background: var(--gr-surface); text-decoration: none; box-shadow: var(--gr-shadow); transition: transform 160ms ease, border-color 160ms ease; }
.post-nav-card:hover { transform: translateY(-2px); border-color: rgba(96, 165, 250, .38); }
.post-nav-image { width: 100%; height: 160px; object-fit: cover; }
.post-nav-label { padding: 14px 18px 0; color: var(--gr-colour-blue-light); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.post-nav-copy { padding: 12px 18px 18px; }
.post-nav-copy h3 { margin: 10px 0 7px; font-family: var(--gr-font-display); font-size: 1.35rem; font-weight: 400; }
.post-nav-copy p { display: -webkit-box; overflow: hidden; margin: 0; -webkit-box-orient: vertical; -webkit-line-clamp: 3; font-size: .82rem; }
.article-disclaimer { margin-top: 42px; padding: 16px 18px; border: 1px solid var(--gr-line); border-radius: 10px; background: var(--gr-surface-subtle); color: var(--gr-text-soft); font-size: .78rem; line-height: 1.6; }
footer { padding: 30px 0; border-top: 1px solid var(--gr-line); background: var(--gr-page-deep); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-inner p { margin: 0; font-size: .75rem; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { color: var(--gr-text-soft); font-size: .75rem; text-decoration: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
@media (max-width: 980px) {
  .hub-layout { grid-template-columns: minmax(0, 1fr) 300px; }
  .spotlight-story { min-height: 330px; }
  .article-card { min-height: 240px; }
}
@media (max-width: 820px) {
  .hub-layout { grid-template-columns: 1fr; }
  .right-rail { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tools-rail { grid-column: 1 / -1; }
  .hub-intro { align-items: flex-start; flex-direction: column; gap: 7px; }
  .hub-intro p { text-align: left; }
}
@media (max-width: 620px) {
  .container { width: min(100% - 28px, var(--gr-content-width)); }
  .topbar-inner { grid-template-columns: 1fr auto; gap: 14px; min-height: 62px; }
  .nav-links { display: none; }
  .brand img { height: 29px; }
  .hub-intro { padding-top: 22px; }
  .hub-intro h1 { font-size: 2.7rem; }
  .article-stream, .tool-grid, .right-rail { grid-template-columns: 1fr; }
  .spotlight-story { min-height: 400px; padding: 22px; }
  .spotlight-story h2 { font-size: 2.7rem; }
  .article-card { min-height: 230px; }
  .tools-rail { grid-column: auto; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .article-page { padding-top: 34px; }
  .post-navigation { grid-template-columns: 1fr; }
  .related-reading { padding: 22px; }
  .related-reading-list { grid-template-columns: 1fr; }
  .post-nav-empty { display: none; }
}


.article-tool-callout{margin:44px 0 16px;padding:28px;border:1px solid var(--gr-line);border-radius:12px;background:var(--gr-surface-subtle)}
.article-body .article-tool-callout h2{margin:12px 0 18px}
.article-tool-callout .article-tool-action{margin:24px 0 16px}
.article-tool-action a{display:inline-block;padding:12px 18px;border-radius:8px;background:#2563eb;color:#fff;text-decoration:none;font-weight:700}
.article-tool-action a:hover{background:#1d4ed8}
.article-tool-callout p:last-child{font-size:.875rem;margin-bottom:0}
@media(max-width:600px){.article-tool-callout{padding:20px}.article-tool-action a{display:block}}

.article-tool-section{padding-top:0}
.tools-rail .tool-placeholder-row{display:grid;grid-template-columns:1fr auto;gap:12px;padding:11px 0}
.tools-rail .tool-placeholder,.tool-card.tool-placeholder{color:var(--gr-text-soft);filter:grayscale(1);opacity:.58}
.tool-card.tool-placeholder{box-shadow:none}
.tool-card.tool-placeholder :is(h3,p,.badge){color:inherit}