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minmax(330px,.9fr);gap:40px;align-items:center;padding:clamp(25px,7vw,100px)}.auth-brand{max-width:520px;color:white}.auth-brand .brand{padding:0 0 45px}.auth-big{font:800 clamp(38px,5vw,62px)/1.07 Manrope;letter-spacing:-.06em;margin:0 0 18px}.auth-big em{font-style:normal;color:var(--lime)}.auth-copy{color:#bbc8d9;font-size:15px;max-width:460px;line-height:1.75}.auth-points{margin-top:35px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.auth-point{padding:15px;border:1px solid #ffffff1e;border-radius:14px;background:#ffffff08}.auth-point strong{display:block;font:700 12px Manrope;color:white}.auth-point span{font-size:11px;color:#9eacc0}.auth-card{background:white;border-radius:25px;padding:clamp(24px,3vw,38px);max-width:480px;width:100%;margin-left:auto;box-shadow:0 30px 90px #0003}.auth-card h2{font:800 24px Manrope;letter-spacing:-.04em;margin:0 0 7px}.auth-card>p{color:var(--muted);font-size:12px;margin:0 0 25px}.auth-tabs{display:flex;gap:5px;background:#f1f4f8;padding:4px;border-radius:11px;margin-bottom:20px}.auth-tabs button{flex:1;background:transparent;color:var(--muted);font-size:12px}.auth-tabs button.active{background:#fff;color:var(--ink);box-shadow:0 2px 5px #14213712}.auth-help{font-size:11px;color:var(--muted);margin-top:16px;line-height:1.7}.auth-foot{color:#8fa0b6;font-size:10px;margin-top:23px}.admin-only{border:1px solid #e1e8d3;background:#f7fbea;padding:12px;border-radius:12px;margin-top:15px}.admin-only strong{font-size:12px;display:block}.admin-only p{font-size:11px;color:#687653;margin:5px 0 10px}.toast-region{position:fixed;top:18px;right:18px;z-index:999;display:flex;flex-direction:column;gap:9px;pointer-events:none}.toast{pointer-events:auto;max-width:360px;background:#16243a;color:white;border-radius:13px;padding:13px 16px;box-shadow:0 16px 40px #0002;font-size:12px;animation:toastIn .2s ease}.toast.success{border-left:4px solid var(--lime)}.toast.error{border-left:4px solid #ff7e77}.toast.info{border-left:4px solid var(--blue)}@keyframes toastIn{from{transform:translateY(-6px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-backdrop{position:fixed;inset:0;background:#0b1426a6;backdrop-filter:blur(5px);z-index:60;display:grid;place-items:center;padding:20px;overflow:auto}.modal{background:#fff;border-radius:22px;padding:24px;width:min(680px,100%);max-height:90vh;overflow:auto;box-shadow:0 30px 100px #0003}.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:18px}.modal-head h2{font:800 21px Manrope;letter-spacing:-.035em;margin:0}.modal-head p{font-size:12px;color:var(--muted);margin:5px 0 0}.modal-foot{display:flex;justify-content:flex-end;gap:9px;align-items:center;margin-top:18px}.mobile-nav{display:none}.skeleton{background:linear-gradient(90deg,#e8edf3,#f5f7fa,#e8edf3);background-size:220% 100%;animation:shimmer 1.25s infinite;border-radius:10px;height:18px}@keyframes shimmer{to{background-position:-220% 0}}.hidden{display:none!important}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.toast a{text-decoration:underline}
@media(max-width:1200px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.main-grid{grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr)}.hero-art{opacity:.4}}
@media(max-width:900px){.sidebar{transform:translateX(-100%);transition:transform .22s;box-shadow:20px 0 60px #0002}.sidebar.open{transform:translateX(0)}.main-shell{width:100%;margin-left:0}.mobile-menu{display:grid}.topbar{padding:0 18px;height:65px}.content{padding:24px 18px 90px}.main-grid{grid-template-columns:1fr}.lesson-layout{grid-template-columns:1fr}.lesson-side{position:static;order:-1}.hero-art{display:none}.auth-shell{grid-template-columns:1fr;gap:28px;padding:25px;align-content:center}.auth-brand .brand{padding-bottom:22px}.auth-big{font-size:42px}.auth-points{display:none}.auth-card{margin:auto}.mobile-nav{display:flex;position:fixed;bottom:0;inset-inline:0;z-index:30;background:#ffffffec;backdrop-filter:blur(16px);border-top:1px solid var(--line);padding:8px 8px calc(8px + env(safe-area-inset-bottom));justify-content:space-around;gap:4px}.mobile-nav .nav-item{margin:0;padding:9px 8px;width:auto;min-width:58px;flex-direction:column;gap:3px;text-align:center;color:#788397;font-size:9px}.mobile-nav .nav-item.active{color:#50691b;background:#f2f9e1;box-shadow:none}.mobile-nav .nav-icon{font-size:17px}.mobile-nav .nav-count{display:none}}
@media(max-width:600px){.grid-2,.grid-3,.grid-4,.course-grid,.handover-grid{grid-template-columns:1fr}.title-row{align-items:flex-start;flex-direction:column;margin-bottom:20px}.title-actions{width:100%}.title-actions .btn{flex:1}.top-actions .date-chip{display:none}.search{width:100%}.search input{width:100%}.toolbar{align-items:stretch}.toolbar select,.toolbar input{width:100%;min-width:0}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.card{padding:18px;border-radius:18px}.hero-card{min-height:unset}.hero-title{font-size:29px}.hero-copy{font-size:12px}.auth-shell{padding:18px}.auth-brand{padding:5px 2px}.auth-big{font-size:38px}.auth-copy{font-size:13px}.auth-card{padding:24px 20px}.metric-value{font-size:25px}.data-table{min-width:580px}.page-title{font-size:30px}.lesson-hero .page-title{font-size:26px}.modal{padding:20px}.modal-foot{flex-wrap:wrap}.modal-foot .btn{flex:1}}