@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');
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@media(max-width:860px){.sidebar{position:fixed;left:0;top:0;transform:translateX(-105%);transition:transform .25s;max-width:85vw;width:255px;box-shadow:8px 0 24px #22223d13}.sidebar.open{transform:none}.overlay:not([hidden]){display:block;position:fixed;inset:0;background:#1e214777;z-index:25}.mobile-menu{display:inline-block}.topbar{height:65px;padding:0 20px}.cols{grid-template-columns:1fr}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-art{font-size:70px;min-width:130px}}
@media(max-width:570px){#main{padding:26px 15px}.top-actions{gap:7px}.top-actions .streak-top span{display:none}.top-actions .xp-top,.streak-top{padding:8px}.breadcrumb{font-size:9px}.breadcrumb span{margin:0 5px}.hero{padding:24px;min-height:190px}.hero-art{display:none}.welcome{align-items:flex-start;flex-wrap:wrap}.stat-grid{gap:9px}.stat{padding:15px}.course-grid,.level-grid,.word-grid,.grammar-list{grid-template-columns:1fr}.exercise-card{padding:20px 14px}.answers{grid-template-columns:1fr}.section-head h2{font-size:15px}.topbar .user-icon{width:31px;height:31px}}
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