:root{--color-bg-primary:#fff;--color-bg-alt:#f9fafb;--color-bg-dark:#0f1720;--color-text-primary:#111827;--color-text-secondary:#4b5563;--color-text-inverse:#fff;--color-border:#e5e7eb;--color-accent:#0f1720;--space-1:8px;--space-2:16px;--space-3:24px;--space-4:40px;--space-5:64px;--radius-sm:4px;--radius-md:8px;--font-base:16px;--font-scale-h1:2.5rem;--font-scale-h2:1.75rem;--font-scale-h3:1.25rem;--font-scale-body:1rem;--font-scale-small:0.8125rem;--container-max:1100px}*{box-sizing:border-box}body{margin:0;font-family:Inter,Helvetica Neue,Arial,sans-serif;font-size:var(--font-base);color:var(--color-text-primary);background:var(--color-bg-primary);line-height:1.6}a{color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--container-max);margin-left:auto;margin-right:auto;padding-left:var(--space-2);padding-right:var(--space-2)}.section{padding-top:var(--space-5);padding-bottom:var(--space-5)}.section-alt{background:var(--color-bg-alt)}.section-dark{background:var(--color-bg-dark)}.section-dark,.section-dark h1,.section-dark h2,.section-dark h3,.section-dark p{color:var(--color-text-inverse)}h1{font-size:var(--font-scale-h1);font-weight:700;line-height:1.2;margin:0 0 var(--space-3) 0}h2{font-size:var(--font-scale-h2)}h2,h3{font-weight:600;line-height:1.2;margin:0 0 var(--space-2) 0}h3{font-size:var(--font-scale-h3)}p{font-size:var(--font-scale-body);margin:0 0 var(--space-2) 0;color:var(--color-text-secondary)}small{font-size:var(--font-scale-small)}.site-header{background:var(--color-bg-primary);border-bottom:1px solid var(--color-border);position:-webkit-sticky;position:sticky;top:0;z-index:50}.site-header__inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:var(--space-2)}.brand{color:var(--color-text-primary);font-weight:700}.nav{display:flex;gap:var(--space-3);align-items:center}.nav a{color:var(--color-text-secondary);font-size:var(--font-scale-body);font-weight:500}.nav a:hover{color:var(--color-text-primary);text-decoration:none}.nav-actions{display:flex;gap:var(--space-2);font-size:14px}.hero{padding-top:80px;padding-bottom:80px;text-align:left}.hero__title{max-width:720px;margin-bottom:var(--space-2)}.hero__lead,.hero__title{color:var(--color-text-inverse)}.hero__lead{font-size:var(--font-scale-body);max-width:700px}.grid-2,.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-gap:var(--space-3);gap:var(--space-3)}.card{background:var(--color-bg-primary);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3);transition:transform .2s ease,box-shadow .2s ease}.card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.05)}.card__title{margin-top:0}.card__text,.card__title{margin-bottom:var(--space-2)}.card__text{color:var(--color-text-secondary)}.link-arrow{font-weight:600}.link-arrow:hover{text-decoration:underline}.site-footer{background:var(--color-bg-alt);padding-top:var(--space-4);padding-bottom:var(--space-4);border-top:1px solid var(--color-border);font-size:var(--font-scale-small);color:var(--color-text-secondary)}.footer-links{display:flex;flex-wrap:wrap;gap:var(--space-3)}.footer-links a{color:var(--color-text-secondary)}.footer-links a:hover{color:var(--color-text-primary);text-decoration:none}.page-title{margin-bottom:var(--space-2)}.page-lead{margin-bottom:var(--space-3)}@media (max-width:768px){.grid-2,.grid-3{grid-template-columns:1fr}.site-header__inner{min-height:auto;padding-top:var(--space-2);padding-bottom:var(--space-2);flex-direction:column;align-items:flex-start}}