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var(--border);text-align:left;justify-content:space-between;align-items:center;gap:12px;width:100%;min-height:60px;font-size:14px;display:flex}.account-row:last-child{border:0}.account-row:disabled{color:var(--muted)}.screen-enter{animation:.42s cubic-bezier(.2,.85,.25,1.12) both screen-enter}@keyframes screen-enter{0%{opacity:0;transform:translateY(12px)scale(.99)}to{opacity:1;transform:translateY(0)scale(1)}}@media (min-width:900px){.app-shell{border-radius:28px 28px 0 0;min-height:calc(100svh - 24px);margin-block:24px}.shell-main,.shell-header{padding-inline:40px}.lesson-card{min-height:310px;padding-right:260px;position:relative}.lesson-card>.flex{flex-wrap:wrap}.lesson-card .lab-visual{width:240px;position:absolute;top:50px;right:10px}.lesson-card h2{margin-top:30px}.lesson-card .card-note{width:calc(100% + 230px)}}@media (max-width:760px){.welcome{max-width:480px;padding-top:max(20px, env(safe-area-inset-top))}.welcome-grid{min-height:0;display:block}.welcome-header>.eyebrow{font-size:8px}.welcome-story{padding-bottom:28px}.lab-visual{height:245px;margin-bottom:12px}.welcome-copy{text-align:center}.welcome-copy h1{font-size:clamp(34px,9vw,44px)}.welcome-description{margin-top:16px;font-size:13px}.subject-strip{justify-content:center;gap:12px;margin-top:22px;font-size:8px}.subject-strip span+span:before{margin-right:12px}.welcome-access{box-shadow:none;background:0 0;border:0;padding:0}.access-intro{display:none}.welcome-footnote{margin-top:20px;padding-top:20px}.welcome-footer{justify-content:center;font-size:10px}.welcome-footer>span:last-child{display:none}.phone-step{border:1px solid var(--border);background:var(--surface);border-radius:24px;padding:22px}.welcome:has(.phone-step) .welcome-story{display:none}.welcome:has(.phone-step) .welcome-access{margin-top:34px}.app-shell{border:0}.lab-visual-compact{height:200px}.diagram-label{font-size:7px}}@media (max-width:360px){.welcome,.shell-main{padding-inline:18px}.welcome-header>.eyebrow{display:none}.panel{padding:18px}.subject-strip{gap:8px}.subject-strip span+span:before{margin-right:8px}.lesson-card{padding:20px}.practice-card>.flex{flex-wrap:wrap;gap:10px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}button:active:not(:disabled){transform:none}}@property --tw-font-weight{syntax:"*";inherits:false}