html{font-size:100%}body{line-height:1.4;color:#333}h1{font-size:clamp(2rem,4vw + 1rem,4.5rem);line-height:1.1;font-weight:700}h2{font-size:clamp(1.75rem,3vw + 0.5rem,3.5rem);line-height:1.2;font-weight:700}h3{font-size:clamp(1.5rem,2.5vw + 0.5rem,2.5rem);line-height:1.25;font-weight:600}h4{font-size:clamp(1.25rem,1.8vw + 0.4rem,2rem);line-height:1.3;font-weight:600}h5{font-size:clamp(1.125rem,1.2vw + 0.4rem,1.75rem);line-height:1.35;font-weight:500}h6{font-size:clamp(1rem,1vw + 0.3rem,1.5rem);line-height:1.4;font-weight:500;text-transform:uppercase;letter-spacing:0.05em}