@media (max-width:768px){.section-title{font-size:2rem}.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.25rem}.nav-list{flex-wrap:wrap;gap:var(--spacing-sm)}.portfolio{padding:60px 0}.portfolio-grid,.services-grid{grid-template-columns:1fr;gap:24px}.calculator-extras-grid{grid-template-columns:1fr}.calculator-result{flex-direction:column;gap:var(--spacing-sm);text-align:center}.contacts-content{grid-template-columns:1fr}}@media (max-width:480px){:root{--font-size-base:14px}.section{padding:var(--spacing-xl) 0}.logo{font-size:2.5rem}.logo-image{height:50px}.hero{min-height:400px}.hero-title{font-size:2.3rem}.hero-subtitle{font-size:1.55rem;line-height:1.8;font-weight:300}.about-text{font-size:1.25rem;font-weight:300}.section-title{font-size:1.75rem}}