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@media(max-width:450px){body[data-rpi-page="introduction"] .experiment{padding:1rem}.intro-sequence{gap:.5rem}.intro-sequence strong{font-size:.85rem}}
@media print{body[data-rpi-page="introduction"] .page-layout{display:block;width:100%}.intro-start,.intro-panel-links{display:none}body[data-rpi-page="introduction"] .opening.rpi-hero{padding:1.5rem 0}body[data-rpi-page="introduction"] .lesson-body h2{font-size:19pt}.intro-reading-note{max-width:none}}

.reading-routes{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:1.25rem 0}.reading-routes p{font-size:.875rem;line-height:1.7}.reading-routes strong{display:inline-block;margin-bottom:.3rem}.practice-task{padding:1.25rem 1.5rem;border:1px solid var(--line);margin:1.75rem 0}.practice-task>.eyebrow{margin-top:0}.practice-task details{margin-bottom:0}.route-break{background:#e8eaf1;border-top:3px solid #6876ab;padding:1.5rem;margin:2.5rem 0}.route-break>.eyebrow{margin-top:0}.route-break h3{font-size:1.35rem}.route-break a{font-weight:600}
@media(max-width:780px){body[data-rpi-page="introduction"]>nav.rpi-interior-nav{position:static}.reading-routes{grid-template-columns:1fr;gap:.3rem}.practice-task,.route-break{padding:1.15rem}}