:root{--hdd-bg:#f8fafc;--hdd-surface:#fff;--hdd-text:#0f172a;--hdd-muted:#475569;--hdd-border:#dbe2ea;--hdd-accent:#1d4ed8;--hdd-radius:18px}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--hdd-bg);color:var(--hdd-text);line-height:1.7}body.theme-dark{--hdd-bg:#08111f;--hdd-surface:#0f172a;--hdd-text:#f8fafc;--hdd-muted:#cbd5e1;--hdd-border:#1e293b;--hdd-accent:#60a5fa}.hdd-container{width:min(1120px,calc(100% - 32px));margin:0 auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(248,250,252,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--hdd-border)}body.theme-dark .site-header{background:rgba(8,17,31,.92)}.site-header__inner,.site-footer__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0}.site-brand{text-decoration:none;color:var(--hdd-text);font-weight:800;font-size:1.15rem}.site-searchbar{padding:0 0 16px}.site-searchbar input{width:100%;padding:16px 20px;border:1px solid var(--hdd-border);border-radius:999px;background:var(--hdd-surface);color:var(--hdd-text)}.hdd-hero,.hdd-page-header,.hdd-card{background:var(--hdd-surface);border:1px solid var(--hdd-border);border-radius:var(--hdd-radius);box-shadow:0 18px 40px rgba(15,23,42,.05)}.hdd-hero{padding:56px 36px;margin:36px 0}.hdd-page-header{padding:28px 30px;margin:28px 0;display:flex;justify-content:space-between;gap:24px;align-items:flex-start}.hdd-card{padding:24px;margin:24px 0}.hdd-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}.hdd-grid--content{grid-template-columns:minmax(0,2fr) minmax(280px,1fr)}.hdd-grid--triple{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}.hdd-card--primary{margin:0}.hdd-kicker{margin:0 0 10px;text-transform:uppercase;letter-spacing:.08em;color:var(--hdd-accent);font-weight:700;font-size:.8rem}.hdd-subtitle,.hdd-definition-list,.hdd-breadcrumbs,.hdd-share a,.site-footer p,.site-footer a{color:var(--hdd-muted)}.hdd-breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;margin-top:30px}.hdd-breadcrumbs a,.hdd-word-pagination a,.button-link,.site-footer a{color:var(--hdd-accent);text-decoration:none}.hdd-word-pagination{display:flex;justify-content:space-between;gap:20px;margin:28px 0 48px}.hdd-faqs details{border-top:1px solid var(--hdd-border);padding:14px 0}.hdd-faqs summary{cursor:pointer;font-weight:700}.theme-toggle,.back-to-top{border:0;background:var(--hdd-accent);color:#fff;border-radius:999px;padding:10px 14px;cursor:pointer}.back-to-top{position:fixed;right:20px;bottom:20px;opacity:0;pointer-events:none;transition:.2s}.back-to-top.is-visible{opacity:1;pointer-events:auto}.site-footer{padding:24px 0 40px}.screen-reader-text{position:absolute;left:-9999px}@media (max-width:782px){.hdd-grid--content{grid-template-columns:1fr}.hdd-page-header,.site-header__inner,.site-footer__inner{flex-direction:column;align-items:flex-start}.site-nav{display:none}}