.stepping-stones-kindlefirehd8 .app-shell{max-width:980px;padding:18px}.stepping-stones-kindlefirehd8 .hero{grid-template-columns:minmax(0,1fr) 280px;padding:38px 0}.stepping-stones-kindlefirehd8 .trail-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.stepping-stones-kindlefirehd8 .lesson-grid,.stepping-stones-kindlefirehd8 .story-grid{grid-template-columns:minmax(0,1fr) 260px}.stepping-stones-kindlefirehd8 .story-list{grid-template-columns:repeat(2,minmax(0,1fr))}.stepping-stones-kindlefirehd8 .stone{min-height:132px}.stepping-stones-kindlefirehd8 h1{font-size:clamp(2.45rem,6vw,4.4rem)}@media(orientation:portrait){.stepping-stones-kindlefirehd8 .hero,.stepping-stones-kindlefirehd8 .lesson-grid,.stepping-stones-kindlefirehd8 .story-grid{grid-template-columns:1fr}.stepping-stones-kindlefirehd8 .trail-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stepping-stones-kindlefirehd8 .hero-art{display:none}}