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span{display:none}.progress{gap:4px;margin-top:13px}.progress-step{flex-direction:column;gap:3px;min-height:47px;font-size:10px}.intro-screen{grid-template-columns:1fr;margin-top:14px}.intro-copy{padding:30px 24px}.intro-copy h2{font-size:36px}.intro-art{border-top:2px solid var(--ink);border-left:0;min-height:410px}.intro-tube{height:320px!important}.stage{grid-template-columns:1fr;grid-template-areas:"copy""visual""controls""notes";min-height:0;padding:17px}.stage-visual{min-height:430px}.main-illustration{height:310px}.notebook{grid-template-columns:1fr}.notebook-title img{width:45px;height:45px}.notebook-list{grid-template-columns:repeat(5,1fr)}.safety-note{margin-top:5px}.quiz-screen{padding:28px 18px}.quiz-options{grid-template-columns:1fr}.quiz-options button{text-align:left;grid-template-columns:42px 1fr;min-height:70px}}@media (width<=520px){.topbar{align-items:flex-start}.brand img{display:none}h1{font-size:23px}.progress-step{padding:4px 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span{width:43px;height:43px;font-size:9px}.filter-tags{flex-direction:column;align-items:center}.preview-tube{width:130px;height:290px}.notebook-list{grid-template-columns:repeat(5,minmax(48px,1fr));gap:3px}.notebook-list>div{padding:0 2px}.notebook-list strong{font-size:10px}.quiz-mascot{align-items:flex-end}.quiz-mascot img{width:72px;height:62px}.quiz-explain{grid-template-columns:1fr}.quiz-explain .next-button{grid-area:auto;width:100%}.finish-screen{padding:22px 13px}.result-stats{gap:4px}.result-stats span{font-size:19px}.route-summary{grid-template-columns:repeat(5,minmax(52px,1fr));gap:3px}.route-summary>div{min-height:88px;padding:4px}.route-summary strong{font-size:11px}.route-summary small{font-size:8px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property 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