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480px){.templates-container{grid-template-columns:repeat(2,1fr)}}@media (min-width: 768px){.app{padding:20px}.templates-container{grid-template-columns:repeat(3,1fr);gap:20px}.modal{width:90%}header h1{font-size:1.8rem}}@media (max-width: 320px){header h1{font-size:1.3rem}.template-card{min-width:100%}.card-header h2{font-size:1rem}.variables li{padding:2px 6px;font-size:.7rem}}