:root{--bg:#f8fafc;--surface:#ffffff;--surface-alt:#f1f5f9;--text:#0f172a;--muted:#475569;--line:#e2e8f0;--primary:#0f172a;--shadow-soft:0 16px 45px rgba(15,23,42,.08);--shadow-card:0 22px 60px rgba(15,23,42,.08);--radius-lg:22px;--container:1240px}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:"Inter",system-ui,sans-serif;text-rendering:optimizeLegibility}a{text-decoration:none;color:inherit}button{cursor:pointer;border:none;background:none;font:inherit}.container{width:min(var(--container),calc(100% - 32px));margin:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:16px;padding:10px 14px;background:#fff;border-radius:12px;z-index:999;box-shadow:var(--shadow-soft)}
.site-header{position:sticky;top:0;z-index:1200;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(226,232,240,.92)}.nav-shell{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;min-height:80px}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;background:var(--primary);color:#fff;font-family:"Manrope";font-weight:800}.brand-copy{display:flex;flex-direction:column;gap:2px}.brand-copy strong{font-family:"Manrope";font-size:1.05rem;font-weight:800}.brand-copy small{font-size:.8rem;color:var(--muted)}.desktop-nav{display:flex;justify-content:center;gap:24px}.desktop-nav a{font-weight:700;color:var(--muted);font-size:.95rem}.desktop-nav a:hover{color:var(--text)}.nav-actions{display:flex;align-items:center;gap:12px}
.primary-btn,.ghost-btn,.mobile-switch{min-height:48px;padding:0 18px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;transition:.2s}.primary-btn{background:var(--primary);color:#fff;box-shadow:var(--shadow-soft)}.ghost-btn,.mobile-switch{background:#fff;border:1px solid var(--line)}.primary-btn:hover,.ghost-btn:hover{transform:translateY(-1px)}.menu-btn{display:none;width:48px;height:48px;border:1px solid var(--line);border-radius:16px;background:#fff;flex-direction:column;justify-content:center;gap:4px}.menu-btn span{display:block;width:18px;height:2px;background:var(--text)}.mobile-menu{display:none;padding:0 16px 16px;background:#fff;border-top:1px solid var(--line)}.mobile-menu.is-open{display:grid;gap:10px}.mobile-menu a{min-height:48px;padding:12px 14px;border-radius:16px;border:1px solid var(--line)}
h1,h2,h3,.footer-brand{font-family:"Manrope";font-weight:800;letter-spacing:-.045em;color:var(--text)}.article-hero{padding:58px 0 44px;background:linear-gradient(180deg,#fff,#f8fafc)}.article-hero-shell{max-width:920px}.back-link{display:inline-flex;margin-bottom:18px;color:var(--muted);font-weight:800}.eyebrow{display:inline-flex;align-items:center;padding:0 14px;min-height:34px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:.82rem;font-weight:800}.article-hero h1{margin-top:18px;font-size:clamp(3rem,4.8vw,4.8rem);line-height:1.06}.hero-text{margin-top:22px;max-width:780px;line-height:1.75;font-size:1.05rem;color:var(--muted)}.article-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.article-meta span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:.84rem;font-weight:800;color:var(--muted)}
.section{padding:70px 0}.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;align-items:start}.article-content{display:grid;gap:18px}.article-section,.sidebar-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:30px}.article-section h2{font-size:2rem;line-height:1.12;margin-bottom:14px}.article-section p,.sidebar-card p{color:var(--muted);line-height:1.85}.highlight-box{background:#0f172a}.highlight-box h2,.highlight-box p{color:#fff}.article-sidebar{position:sticky;top:104px;display:grid;gap:16px}.sidebar-card h3{font-size:1.45rem;line-height:1.16;margin-bottom:12px}.full-width{width:100%;margin-top:18px}
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:40px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .9fr .9fr;gap:40px}.footer-brand{font-size:1.3rem;margin-bottom:12px}.footer-text{line-height:1.75;color:var(--muted)}.footer-grid h3{margin-bottom:14px;font-size:.92rem;text-transform:uppercase}.footer-grid a{display:block;margin-bottom:10px;color:var(--muted)}.footer-grid a:hover{color:var(--text)}.footer-bottom{display:flex;justify-content:space-between;gap:14px;padding:18px 0 24px;margin-top:24px;border-top:1px solid var(--line);font-size:.92rem;color:var(--muted)}
@media(max-width:1100px){.article-grid,.footer-grid{grid-template-columns:1fr}.article-sidebar{position:static}}@media(max-width:860px){.desktop-nav,.nav-actions .ghost-btn,.nav-actions .primary-btn{display:none}.menu-btn{display:inline-flex}.brand-copy small{display:none}}@media(max-width:640px){.container{width:min(var(--container),calc(100% - 24px))}.article-hero h1{font-size:clamp(2.35rem,10vw,3.25rem)}.article-section,.sidebar-card{padding:22px}.article-section h2{font-size:1.55rem}.footer-bottom{flex-direction:column;align-items:flex-start}}