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@media(max-width:960px){.hero-grid{grid-template-columns:1fr}.hero-panel{justify-content:flex-start}.feature-grid{grid-template-columns:repeat(2,1fr)}.stats-grid{grid-template-columns:repeat(2,1fr)}.practice-layout{grid-template-columns:1fr}.question-nav{position:static}.lesson-layout{grid-template-columns:1fr}.lesson-sidebar{position:static}.calendar-grid{grid-template-columns:1fr}.topic-grid{grid-template-columns:1fr}.two-col{grid-template-columns:1fr}}
@media(max-width:760px){.container{width:min(100% - 22px,1180px)}.header-inner{min-height:65px}.brand small{display:none}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:65px;left:0;right:0;padding:12px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.main-nav.open{display:grid}.main-nav>a{padding:11px 16px}.hero{padding:50px 0}.hero h1{font-size:39px}.feature-grid{grid-template-columns:1fr}.difficulty-card,.page-heading,.today-card,.lesson-hero,.result-hero,.admin-today,.submit-card{display:block}.date-stack{margin-top:20px}.page-heading .button{margin-top:15px}.today-action,.lesson-day-number{border:0;border-top:1px solid var(--line);padding:20px 0 0;margin-top:20px;text-align:left}.stats-grid,.result-stats{grid-template-columns:1fr 1fr}.calendar-card{grid-template-columns:60px 1fr;padding:14px}.lesson-row{grid-template-columns:auto 1fr}.lesson-row-action{grid-column:2;text-align:left}.practice-topbar{display:block}.practice-status{margin-top:10px}.question-card{padding:18px;min-height:0}.section-banner{margin:-18px -18px 18px;padding:10px 18px}.question-meta .bookmark-button{width:100%;text-align:left;margin-top:6px}.solution-panel{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}.override-form{grid-template-columns:1fr}.footer-inner{display:block}.footer-inner span{display:block;margin:4px 0}.score-ring{margin:20px auto 0}.auth-card,.install-card{padding:22px}}
@media(max-width:480px){.stats-grid,.result-stats{grid-template-columns:1fr}.q-nav-grid{grid-template-columns:repeat(5,1fr)}.calendar-date{min-height:64px}.formula-card{padding:22px}.hero-actions .button{width:100%}.modal-actions .button{width:100%}}