:root{--bg:#f4f8f7;--surface:#fff;--surface-2:#eaf1ef;--ink:#182420;--muted:#5b6b66;--faint:#86968f;--line:#dbe5e2;--accent:#0e7c6b;--accent-strong:#0a5f52;--accent-soft:#e2f0ed;--warn:#b45309;--warn-soft:#f8ecdd;--danger:#b3261e;--ok:#2e7d32;--ok-soft:#e6f2e6;--shadow:0 1px 2px #1028220f, 0 8px 24px #10282212;--radius:14px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#0f1514;--surface:#161d1c;--surface-2:#1e2725;--ink:#e5edeb;--muted:#9cb0aa;--faint:#77897f;--line:#2a3634;--accent:#43bfa9;--accent-strong:#6fd3c0;--accent-soft:#17302b;--warn:#e8a25a;--warn-soft:#33250f;--danger:#ef8f88;--ok:#7fc784;--ok-soft:#1c2e1d;--shadow:0 1px 2px #00000059, 0 8px 24px #0000004d}}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:Segoe UI,-apple-system,Roboto,Arial,sans-serif;font-size:15.5px;line-height:1.55}h1,h2,h3,h4{color:var(--ink);text-wrap:balance;margin:0}h1{font-size:1.9rem;font-weight:700;line-height:1.2}h2{font-size:1.35rem;font-weight:700}h3{font-size:1.05rem;font-weight:600}p{margin:0}a{color:var(--accent-strong);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:8px 14px;transition:background .15s,border-color .15s,transform 50ms}button:hover{border-color:var(--accent)}button:active{transform:translateY(1px)}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}button.primary:hover{filter:brightness(1.08)}button.ghost{background:0 0}button:disabled{opacity:.45;cursor:default}input[type=range]{accent-color:var(--accent);width:100%}select{font:inherit;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:7px 10px}.app-shell{flex-direction:column;min-height:100svh;display:flex}.app-main{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:28px 20px 64px}.topbar{z-index:40;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0}.topbar-in{align-items:center;gap:20px;max-width:1180px;margin:0 auto;padding:10px 20px;display:flex}.brand{color:var(--ink);align-items:center;gap:10px;font-size:1.15rem;font-weight:700;display:flex}.brand img{width:26px;height:26px}.brand small{color:var(--muted);margin-left:2px;font-size:.78rem;font-weight:500}.topnav{gap:4px;margin-left:auto;display:flex}.topnav a{color:var(--muted);border-radius:10px;padding:7px 14px;font-weight:500}.topnav a:hover{background:var(--surface-2);color:var(--ink);text-decoration:none}.topnav a.active{background:var(--accent-soft);color:var(--accent-strong)}.footer{border-top:1px solid var(--line);background:var(--surface)}.footer-in{max-width:1180px;color:var(--faint);gap:6px;margin:0 auto;padding:18px 20px;font-size:.82rem;display:grid}.hero{gap:10px;margin-bottom:26px;display:grid}.hero .sub{color:var(--muted);max-width:62ch;font-size:1.03rem}.hero-stats{flex-wrap:wrap;gap:10px;margin-top:6px;display:flex}.stat-chip{background:var(--surface);border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:6px 14px;font-size:.86rem}.stat-chip b{color:var(--ink)}.filters{flex-wrap:wrap;gap:8px;margin-bottom:18px;display:flex}.filter-chip{border-radius:999px;padding:6px 14px;font-size:.9rem}.filter-chip.on{background:var(--accent);border-color:var(--accent);color:#fff}.lab-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;display:grid}.lab-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);color:var(--ink);flex-direction:column;gap:10px;padding:18px;transition:transform .12s,border-color .12s;display:flex}.lab-card:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-2px)}.lab-card .icon{font-size:1.7rem;line-height:1}.lab-card h3{font-size:1.02rem}.lab-card .short{color:var(--muted);flex:1;font-size:.88rem}.card-meta{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.badge{white-space:nowrap;border-radius:999px;padding:2px 10px;font-size:.72rem;font-weight:600;display:inline-block}.badge.subj-физика{color:#1d5e9e;background:#e3edf8}.badge.subj-химия{background:var(--accent-soft);color:var(--accent-strong)}.badge.subj-биология{color:#3b6d1f;background:#e8f3e0}@media (prefers-color-scheme:dark){.badge.subj-физика{color:#7db4e8;background:#14283a}.badge.subj-биология{color:#9ccc7a;background:#1f2e16}}.badge.kind{background:var(--surface-2);color:var(--muted)}.badge.done{background:var(--ok-soft);color:var(--ok)}.lab-head{gap:8px;margin-bottom:18px;display:grid}.lab-head .meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;font-size:.88rem;display:flex}.backlink{color:var(--muted);font-size:.88rem}.lab-info-grid{grid-template-columns:1fr 1fr;gap:14px;margin:14px 0 20px;display:grid}@media (width<=760px){.lab-info-grid{grid-template-columns:1fr}}.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}.info-card h3{margin-bottom:8px}.info-card ol,.info-card ul{color:var(--muted);gap:4px;margin:0;padding-left:20px;font-size:.92rem;display:grid}.module-frame{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.attribution{color:var(--faint);background:var(--surface-2);border-radius:10px;margin-top:10px;padding:10px 14px;font-size:.8rem}.done-row{align-items:center;gap:12px;margin-top:18px;display:flex}.phet-frame{aspect-ratio:16/10;background:#000;border:0;border-radius:10px;width:100%}.bench{grid-template-columns:250px 1fr 300px;gap:16px;display:grid}@media (width<=1000px){.bench{grid-template-columns:1fr}}.shelf h3,.bench-log h3{margin-bottom:8px}.shelf-group{margin-bottom:12px}.shelf-group .gt{text-transform:uppercase;letter-spacing:.06em;color:var(--faint);margin-bottom:5px;font-size:.75rem}.chem-list{flex-wrap:wrap;gap:6px;display:flex}.chem-btn{text-align:left;border-radius:8px;align-items:center;gap:6px;padding:4px 10px 4px 6px;font-size:.83rem;display:inline-flex}.chem-btn svg{flex-shrink:0}.chem-btn b{font-weight:600}.chem-btn small{color:var(--muted)}.chem-btn.in-beaker{border-color:var(--accent);background:var(--accent-soft)}.heat-chip{border-color:var(--warn);color:var(--warn)}.beaker-zone{flex-direction:column;align-items:center;gap:12px;display:flex}.beaker-stats{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.beaker-actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.bench-log{flex-direction:column;gap:14px;display:flex}.log-box{background:var(--surface-2);border-radius:10px;gap:6px;max-height:300px;padding:12px 14px;font-size:.87rem;display:grid;overflow-y:auto}.log-entry{color:var(--muted)}.log-entry.rx{color:var(--ink)}.log-entry.rx:before{content:"⚗ "}.log-eq{color:var(--accent-strong);font-family:Consolas,monospace;font-size:.82rem;overflow-x:auto}.tasks{gap:6px;display:grid}.task{color:var(--muted);align-items:baseline;gap:8px;font-size:.88rem;display:flex}.task.done{color:var(--ok)}.task .tick{font-weight:700}@keyframes bubble-rise{0%{opacity:.9;transform:translate(0)}50%{transform:translate(var(--swayx,5px), calc(var(--rise,100px) / -2))}to{transform:translate(0, calc(-1 * var(--rise,100px)));opacity:0}}.bubble{animation:1.5s linear infinite bubble-rise}@keyframes steam-drift{0%{opacity:0;transform:translateY(0)}30%{opacity:.55}to{opacity:0;transform:translateY(-26px)}}.steam{animation:2.2s ease-out infinite steam-drift}@keyframes flame-flicker{0%{transform:scaleY(1)scaleX(1)}to{transform:scaleY(.9)scaleX(1.07)}}.flame{transform-box:fill-box;transform-origin:50% 100%;animation:.16s ease-in-out infinite alternate flame-flicker}@keyframes pour-anim{0%{opacity:0;transform:scaleY(.1)}12%{opacity:.9;transform:scaleY(1)}70%{opacity:.85}to{opacity:0;transform:scaleY(1)}}.pour-stream{transform-box:fill-box;transform-origin:50% 0;animation:1.1s ease-out forwards pour-anim}@media (prefers-reduced-motion:reduce){.bubble,.steam,.flame,.pour-stream{animation:none}}.sim-layout{grid-template-columns:1fr 280px;gap:18px;display:grid}@media (width<=900px){.sim-layout{grid-template-columns:1fr}}.sim-canvas-wrap{justify-items:center;gap:12px;display:grid}canvas.sim{background:var(--surface-2);border-radius:10px;max-width:100%}.sim-controls{align-content:start;gap:14px;display:grid}.ctl{gap:4px;display:grid}.ctl label{color:var(--muted);justify-content:space-between;font-size:.85rem;display:flex}.ctl label b{color:var(--ink);font-variant-numeric:tabular-nums}.preset-row{flex-wrap:wrap;gap:8px;display:flex}.readout{background:var(--surface-2);color:var(--muted);border-radius:10px;gap:4px;padding:10px 14px;font-size:.88rem;display:grid}.readout b{color:var(--ink);font-variant-numeric:tabular-nums}.mol-viewer{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;height:420px;position:relative;overflow:hidden}.mol-list{gap:6px;display:grid}.mol-btn{text-align:left;gap:1px;display:grid}.mol-btn small{color:var(--muted)}.mol-btn.on{border-color:var(--accent);background:var(--accent-soft)}input[type=text],input[type=password],input[type=date],input:not([type]){font:inherit;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:8px 12px}input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.auth-wrap{justify-content:center;padding-top:30px;display:flex}.auth-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);gap:14px;width:100%;max-width:420px;padding:26px 28px;display:grid}.auth-card h1{font-size:1.4rem}.field{color:var(--muted);gap:4px;font-size:.88rem;display:grid}.form-error{color:var(--danger);margin:0;font-size:.88rem}.auth-hint{color:var(--faint);margin:0;font-size:.8rem}.auth-hint code{background:var(--surface-2);border-radius:6px;padding:1px 6px}.inline-form{flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;display:flex}.inline-form input,.inline-form select{flex:1;min-width:180px}.inline-form button{flex-shrink:0}.nav-user{color:var(--muted);border:none;padding:7px 12px}.nav-user:hover{background:var(--surface-2);color:var(--ink)}.badge.overdue{background:var(--warn-soft);color:var(--warn)}.matrix td,.matrix th{text-align:center}.matrix td:first-child,.matrix th:first-child{text-align:left;white-space:nowrap}.matrix-lab{justify-items:center;gap:2px;min-width:120px;display:grid}.matrix-lab small{color:var(--faint);text-transform:none;letter-spacing:0}.cell-done{color:var(--ok);font-weight:700}.cell-todo{color:var(--faint)}button.tiny{color:var(--faint);border:none;padding:0 6px;font-size:.7rem}button.tiny:hover{color:var(--danger)}.prose{gap:14px;max-width:76ch;display:grid}.prose h2{margin-top:14px}.prose ul{color:var(--muted);gap:6px;margin:0;padding-left:20px;display:grid}.license-table-wrap{border:1px solid var(--line);background:var(--surface);border-radius:10px;overflow-x:auto}.license-table{border-collapse:collapse;width:100%;font-size:.88rem}.license-table th,.license-table td{text-align:left;border-top:1px solid var(--line);padding:9px 12px}.license-table thead th{background:var(--surface-2);text-transform:uppercase;letter-spacing:.05em;color:var(--muted);border-top:none;font-size:.76rem}.lang-btn{border:1px solid var(--line);background:var(--surface-2);color:var(--ink);cursor:pointer;border-radius:999px;margin-left:6px;padding:5px 12px;font-size:.85rem;font-weight:600}.lang-btn:hover{border-color:var(--accent);color:var(--accent-strong)}.catalog-search{border:1px solid var(--line);background:var(--surface);min-width:220px;color:var(--ink);font:inherit;border-radius:999px;margin-left:auto;padding:6px 12px}.catalog-search:focus{outline:2px solid var(--accent);outline-offset:1px}.ru-only-note{background:var(--warn-soft);color:var(--warn);border-radius:10px;margin:0 0 10px;padding:8px 12px;font-size:.9rem}@media (width<=720px){.catalog-search{width:100%;min-width:0;margin-left:0}.topbar-in{flex-wrap:wrap;gap:6px 12px;padding:8px 14px}.brand small{display:none}.topnav{flex-wrap:wrap;align-items:center;width:100%;margin-left:0}.topnav a,.nav-user{padding:6px 10px}.lang-btn{margin-left:auto}}.task-progress{gap:6px;margin:14px 0 4px;display:grid}.task-progress-head{color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.9rem;display:flex}.task-progress-head b{color:var(--ok)}.task-progress-bar{background:var(--surface-2);border-radius:999px;height:8px;overflow:hidden}.task-progress-bar span{background:var(--accent);border-radius:999px;height:100%;transition:width .4s;display:block}.print-only{display:none}@media print{.topbar,.footer,.no-print,.backlink,.ru-only-note,.done-row button{display:none!important}.print-only{display:block}.print-head{border-bottom:1px solid #999;margin-bottom:12px;padding-bottom:8px;font-size:12pt}body{color:#000;background:#fff}.info-card,.module-frame{box-shadow:none;break-inside:avoid}.task-progress-bar span{-webkit-print-color-adjust:exact;print-color-adjust:exact}}