:root{--primary:#2563eb;--primary-dark:#020617;--primary-hover:#1d4ed8;--accent:#3b82f6;--neutral-light:#f8fafc;--neutral-white:#fff;--text-primary:#0f172a;--text-secondary:#64748b;--text-on-dark:#f1f5f9;--border:#e2e8f0;--success:#10b981;--heading-font:Inter,system-ui,-apple-system,sans-serif;--body-font:Inter,system-ui,-apple-system,sans-serif;--base-size:16px;--section-padding-y:60px;--card-gap:24px;--content-max-width:1200px;--header-height:72px;--header-compact-height:56px;--transition-speed:0.2s;--border-radius:8px;--border-radius-lg:16px}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:var(--base-size);scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background-color:var(--neutral-white);color:var(--text-primary);font-family:var(--body-font);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}canvas,img,picture,svg,video{display:block;max-width:100%}button,input,select,textarea{font:inherit}a{color:var(--primary);text-decoration:none;transition:color var(--transition-speed)}a:hover{color:var(--primary-hover)}ol,ul{list-style:none}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-family:var(--heading-font);font-weight:700;line-height:1.2}h1{font-size:clamp(2rem,4vw,3rem);letter-spacing:-.02em}h2{font-size:clamp(1.5rem,3vw,2rem);letter-spacing:-.01em}h3{font-size:clamp(1.125rem,2vw,1.5rem)}h3,h4{font-weight:600}h4{font-size:1.125rem}p{color:var(--text-secondary);margin-bottom:1rem}p:last-child{margin-bottom:0}strong{font-weight:600}.container{margin:0 auto;max-width:var(--content-max-width);padding:0 1.5rem;width:100%}.container--narrow{max-width:720px}.container--wide{max-width:1120px}.section{padding:var(--section-padding-y) 0}.section--white{background-color:var(--neutral-white)}.section--light{background-color:var(--neutral-light)}.section--dark{background:linear-gradient(135deg,var(--primary-dark) 0,#0f172a 100%);color:var(--text-on-dark)}.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:var(--neutral-white)}.section--dark p{color:var(--text-on-dark)}.prose{font-size:1.0625rem;line-height:1.7;max-width:720px}.prose h2{margin-bottom:1rem;margin-top:2.5rem}.prose h3{margin-bottom:.75rem;margin-top:2rem}.prose p{color:var(--text-primary);margin-bottom:1.25rem}.prose ol,.prose ul{margin-bottom:1.25rem;padding-left:1.5rem}.prose ul{list-style:disc}.prose ol{list-style:decimal}.prose li{color:var(--text-primary);margin-bottom:.5rem}.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:2px}.prose a:hover{color:var(--primary-hover)}.prose strong{color:var(--text-primary);font-weight:600}@media (max-width:767px){:root{--section-padding-y:40px;--card-gap:16px}}@media (min-width:768px) and (max-width:1024px){:root{--card-gap:20px}}.sr-only{height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px;clip:rect(0,0,0,0);border:0;white-space:nowrap}