:root{--bg:#f1efe8;--card:#fff;--ink:#18202e;--sub:#4a5568;--line:#dcd8cc;--panel:#18202e;--panel2:#263142;--on-panel:#fff;--on-panel-sub:#cbd5e1;--accent:#0f766e;--c-event:#c2410c;--c-cond:#1d4ed8;--c-act:#15803d;--c-ans:#a21caf;--c-given:#b45309;--c-memo:#6d28d9;--ok:#15803d;--ng:#b91c1c;--star:#ca8a04;--f-display:"Dela Gothic One","Hiragino Sans","Yu Gothic",sans-serif;--f-body:"Zen Maru Gothic","Hiragino Maru Gothic ProN","Hiragino Sans","Yu Gothic",sans-serif;color-scheme:light}*{box-sizing:border-box}body,html{margin:0;background:var(--bg)}body{color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.5;-webkit-text-size-adjust:100%}button,input{font-family:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--c-cond);outline-offset:2px}h1,h2{margin:0;text-wrap:balance;font-weight:400}a{color:var(--c-cond)}.wrap{max-width:1080px;padding-inline:16px;padding-block:16px 120px}.narrow,.wrap{margin:0 auto;display:flex;flex-direction:column;gap:14px}.narrow{max-width:640px;width:100%}.top{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}.brand{font-family:var(--f-display);font-size:16px;color:var(--sub);text-decoration:none;display:inline-flex;align-items:center;gap:7px}.brand:before{content:"";width:24px;height:24px;flex:none;background:url(/logo.svg) 50%/contain no-repeat}.roomcode{display:flex;align-items:center;gap:8px}.code-pill{padding:6px 12px;font-size:13px;font-weight:900;letter-spacing:.12em;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.code-pill,.members{background:var(--card);border-radius:999px}.members{align-items:center;gap:8px;padding:5px 12px 5px 5px;min-width:0}.av,.avs,.members{display:flex}.av{width:28px;height:28px;border-radius:50%;color:#fff;font-size:12px;font-weight:900;align-items:center;justify-content:center;border:2px solid var(--card);margin-left:-8px;flex:none}.avs .av:first-child{margin-left:0}.mstat{font-size:13px;font-weight:700;color:var(--sub);white-space:nowrap}.mstat.live{color:var(--ok)}.tabs{position:-webkit-sticky;position:sticky;top:0;z-index:5;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:6px;gap:6px;background:var(--bg);padding-block:6px}.tab{height:48px;border:none;border-radius:14px;background:var(--card);color:var(--ink);font-size:14px;font-weight:700;position:relative}.tab[aria-selected=true]{background:var(--panel);color:var(--on-panel);font-weight:900}.tdots{position:absolute;left:0;right:0;bottom:4px;display:flex;justify-content:center;gap:3px}.tdot{width:7px;height:7px;border-radius:50%}.card{background:var(--card);border-radius:20px;padding:16px;display:flex;flex-direction:column;gap:10px}.lab{font-size:13px;font-weight:900;color:var(--sub);letter-spacing:.04em}.big{font-size:32px}.big,.h2{font-family:var(--f-display);line-height:1.2}.h2{font-size:26px}.stage{font-size:14px;font-weight:700;color:var(--sub)}.hero{background:var(--panel);border-radius:24px;display:flex;align-items:center;justify-content:center;padding:18px;flex-direction:column;gap:10px}.hero svg{max-width:100%;height:auto}.odai{margin:0;font-size:18px;font-weight:700;line-height:1.6}.goals{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px;gap:10px}.goal{background:var(--card);border-radius:16px;padding:12px 14px}.goal b{display:block;font-size:17px;font-weight:900}.goal span{font-size:12px;font-weight:700;color:var(--sub)}.cta{height:56px;border:none;border-radius:18px;background:var(--accent);color:#fff;font-size:17px;font-weight:900;display:flex;align-items:center;justify-content:center;gap:8px;width:100%;text-decoration:none}.cta.dark{background:var(--panel)}.cta:disabled{opacity:.5;cursor:default}.plain{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.hint{font-size:13px;color:var(--sub);margin:0}.tools{gap:8px;flex-wrap:wrap}.tb,.tools{display:flex}.tb{height:44px;border-radius:12px;border:2px solid var(--line);background:var(--card);color:var(--ink);padding:0 14px;font-size:14px;font-weight:900;align-items:center;gap:6px}.tb:disabled{opacity:.45;cursor:default}.tb.armed{background:#fee2e2;border-color:#fca5a5;color:var(--ng)}.budget{display:flex;justify-content:space-between;gap:10px;font-weight:700;font-size:14px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;flex-wrap:wrap}.codegrid{gap:12px}.codegrid,.ws{display:flex;flex-direction:column}.ws{background:var(--card);border-radius:22px;padding:16px;min-height:280px;gap:6px;overflow-x:auto}.empty{color:var(--sub);font-size:14px;margin:0}.blk{display:flex;flex-direction:column;align-self:flex-start;border-radius:14px;position:relative;transition:box-shadow .15s}.blk.ring{box-shadow:0 0 0 3px var(--card),0 0 0 6px var(--ring)}.blk.flash{animation:flash 1s ease 3}@keyframes flash{50%{box-shadow:0 0 0 3px var(--card),0 0 0 9px var(--ring)}}.tagname{position:absolute;right:-6px;top:-12px;font-size:11px;font-weight:900;color:#fff;padding:1px 7px;border-radius:7px;white-space:nowrap;z-index:2}.hd{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:4px 8px;min-height:44px}.hb,.hd{color:#fff;font-weight:900;font-size:15px}.hb{background:none;padding:6px 4px}.chip,.hb{border:none;min-height:36px}.chip{background:#fff;color:var(--c-cond);border-radius:999px;padding:6px 12px;font-size:14px;font-weight:900}.ev>.hd{background:var(--c-event);border-radius:14px 14px 4px 4px}.cond>.hd,.cond>.mid{background:var(--c-cond)}.cond>.hd{border-radius:12px 12px 4px 4px}.mid{color:#fff;font-weight:900;font-size:15px;padding:8px 12px;align-self:flex-start;border-radius:0 12px 4px 0}.inner{display:flex}.rail{width:14px;flex:none}.ev>.cap,.ev>.inner>.rail{background:var(--c-event)}.cond>.cap,.cond>.inner>.rail{background:var(--c-cond)}.list{display:flex;flex-direction:column;gap:6px;padding:8px 0 8px 8px;min-width:0}.cap{height:14px;width:120px;border-radius:0 0 12px 12px}.act{display:flex;align-items:center;flex-wrap:wrap;gap:2px;background:var(--c-act);color:#fff;border-radius:12px;padding:2px 8px;min-height:44px}.act .hb{text-align:left}.fold{background:hsla(0,0%,100%,.18);border:none;color:#fff;width:28px;height:28px;border-radius:8px;font-size:14px;flex:none}.foldnote{font-size:13px;font-weight:700;opacity:.9}.blk.dropbefore:before{content:"";position:absolute;left:-2px;right:-2px;top:-6px;height:4px;border-radius:2px;background:var(--c-cond)}.countgoal{font-weight:500;color:var(--sub);margin-left:4px}.numgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));grid-gap:8px;gap:8px}.numbtn{min-height:48px;border-radius:12px;border:2px solid var(--line);background:var(--card);color:var(--ink);font-size:16px;font-weight:900}.numbtn[aria-pressed=true]{border-color:var(--c-cond);background:#dbeafe}.paltabs{display:none;gap:6px;flex-wrap:wrap}.paltab{height:36px;padding:0 12px;border-radius:999px;border:none;background:var(--panel2);color:var(--on-panel);font-size:13px;font-weight:700}.paltab[aria-selected=true]{background:var(--on-panel);color:var(--ink);font-weight:900}.slot{align-self:flex-start;border:2px dashed #94a3b8;background:#f8fafc;color:var(--ink);border-radius:12px;min-height:44px;padding:4px 14px;font-size:14px;font-weight:700}.slot.root{min-height:52px;font-size:15px;font-weight:900}.slot.over{background:#dbeafe;border-style:solid}body.drag-ev .slot.root,body.drag-in .slot:not(.root){border-color:var(--c-cond);border-width:3px;color:var(--c-cond)}.palette{background:var(--panel);border-radius:22px;padding:14px;gap:12px}.palbody,.palette{display:flex;flex-direction:column}.palbody{gap:10px}.palcat{display:flex;flex-direction:column;gap:6px}.paltitle{font-size:12px;color:var(--on-panel-sub);font-weight:900;margin:0}.pal{display:flex;gap:8px;flex-wrap:wrap}.pb{border:none;border-radius:12px;padding:10px 12px;min-height:44px;color:#fff;font-size:14px;font-weight:900}.selbar{display:flex;gap:6px;flex-wrap:wrap}.sb{height:44px;border-radius:12px;border:none;padding:0 14px;font-size:14px;font-weight:900;background:var(--panel2);color:var(--on-panel)}.sb.warn{background:#fee2e2;color:var(--ng)}.trash{display:none;align-items:center;justify-content:center;height:64px;border-radius:16px;border:3px dashed #fca5a5;color:#fecaca;font-weight:900;font-size:15px}.trash.over{background:#7f1d1d;color:#fff;border-style:solid}body.dragmove .trash{display:flex}body.dragmove .palbody{display:none}[data-drag]{touch-action:none;-moz-user-select:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.ghost{position:fixed;left:0;top:0;z-index:40;pointer-events:none}.ghostin{display:block;background:var(--gbg);color:#fff;font-weight:900;font-size:15px;padding:10px 14px;border-radius:12px;box-shadow:0 10px 24px rgba(24,32,46,.35);transform:translate(-50%,-70%) rotate(-3deg);white-space:nowrap}.count{background:var(--card);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:700;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}@media (max-width:899px){.palette.fixed{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:100%;max-width:640px;max-height:46vh;overflow-y:auto;border-radius:22px 22px 0 0;z-index:12;padding-bottom:calc(14px + env(safe-area-inset-bottom, 0px));box-shadow:0 -6px 20px rgba(24,32,46,.18)}body.tab-code .wrap{padding-bottom:320px}.paltabs{display:flex}.palcat{display:none}.palcat.active{display:flex}.paltitle{display:none}}@media (min-width:900px){.codegrid{display:grid;grid-template-columns:minmax(0,1fr) 340px;grid-gap:20px;gap:20px;align-items:start}.palette.fixed{position:-webkit-sticky;position:sticky;top:72px}.ws{min-height:480px}.pb{cursor:-webkit-grab;cursor:grab}}.sheetbg{position:fixed;inset:0;z-index:25;display:flex;align-items:flex-end;justify-content:center}.scrim{position:absolute;inset:0;background:rgba(24,32,46,.45);border:none}.sheet{position:relative;background:var(--card);width:100%;max-width:480px;border-radius:24px 24px 0 0;padding:18px 16px calc(20px + env(safe-area-inset-bottom, 0px));max-height:80vh;overflow:auto}@media (min-width:900px){.sheetbg{align-items:center}.sheet{border-radius:24px}}.opt{display:flex;flex-direction:column;align-items:flex-start;gap:2px;border:none;border-radius:14px;padding:12px 14px;color:#fff;text-align:left;width:100%}.opt b{font-size:16px;font-weight:900}.opt span{font-size:12px;font-weight:700;opacity:.92}.sheetclose{height:48px;border:none;border-radius:14px;background:var(--bg);color:var(--ink);font-size:15px;font-weight:900}.brandrow{display:flex;align-items:center;gap:10px}.tb.small{height:36px;font-size:12px;padding:0 10px}.worldsec{display:flex;flex-direction:column;gap:8px}.worldhead{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.worldhead b{font-size:18px;font-weight:900}.worldno{font-weight:900}.worldno,.worldprog{font-size:13px;color:var(--sub)}.worldprog{margin-left:auto;font-weight:700;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.stages{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));grid-gap:8px;gap:8px}.stagecard{display:flex;gap:10px;align-items:center;text-align:left;border:3px solid transparent;background:var(--card);color:var(--ink);border-radius:16px;padding:10px 12px;min-height:64px}.stagecard.current{border-color:var(--ink)}.stagecard.armed{border-color:#fca5a5;background:#fff1f2}.stagecard.boss{background:#fff7ed}.stagecode{flex:none;min-width:44px;height:44px;border-radius:12px;background:var(--panel);color:#fff;font-weight:900;font-size:14px;display:flex;align-items:center;justify-content:center;padding:0 6px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.stageinfo{display:flex;flex-direction:column;gap:2px;min-width:0}.stageinfo b{font-size:15px;font-weight:900}.skilltag{align-self:center;background:#dbeafe;color:#1e3a8a;font-size:12px;font-weight:900;padding:2px 8px;border-radius:999px}.beststars{color:var(--star);font-size:14px;letter-spacing:2px;display:flex;align-items:center;gap:2px}.dimstar{color:var(--line)}.bosstag{margin-left:6px;letter-spacing:0;font-size:11px;font-weight:900;color:#fff;background:var(--accent);padding:1px 6px;border-radius:6px}.armednote{font-size:12px;font-weight:700;color:var(--ng)}.armednote.ok{color:var(--ok)}.simmsg{font-size:13px;font-weight:700;color:var(--on-panel-sub);min-height:20px;text-align:center}.tests li{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;font-size:15px}.tests .why{display:block;font-size:12px;color:var(--ng);font-weight:700}.res{font-weight:900;flex:none}.res.ok{color:var(--ok)}.res.ng{color:var(--ng)}.verdict{display:flex;flex-direction:column;align-items:center;gap:4px}.verdict .big.ok{color:var(--ok)}.verdict .big.ng{color:var(--ng)}.stars{display:flex;gap:6px}.reveal{background:var(--c-cond);color:#fff;border-radius:20px;padding:14px 16px;display:flex;flex-direction:column;gap:4px}.reveal p{margin:0;font-weight:700;line-height:1.7}.reveal .lab{color:#dbeafe}.landing{min-height:100%;gap:18px;max-width:480px;margin:0 auto;padding-inline:16px;padding-block:40px}.field,.landing{display:flex;flex-direction:column}.field{gap:6px}.field input{height:50px;border-radius:14px;border:2px solid var(--line);padding:0 14px;font-size:16px;width:100%;background:var(--card);color:var(--ink)}.codeinput{letter-spacing:.2em;text-transform:uppercase;font-weight:900}.cols{display:flex;gap:10px}.colb{width:44px;height:44px;border-radius:50%;border:3px solid transparent}.colb[aria-pressed=true]{border-color:var(--ink);box-shadow:inset 0 0 0 3px var(--card)}.row{display:flex;gap:8px}.row>input{flex:1 1;min-width:0}.row>button{flex:none;width:auto;padding:0 20px}.err{color:var(--ng);margin:0}.banner,.err{font-size:13px;font-weight:700}.banner{background:#fef3c7;color:#713f12;padding:10px 14px}.banner,.toast{border-radius:14px}.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom, 0px));transform:translateX(-50%);background:var(--panel);color:#fff;font-weight:900;font-size:14px;padding:12px 18px;z-index:50;max-width:calc(100% - 32px);box-shadow:0 8px 24px rgba(24,32,46,.25)}body.tab-code .toast{bottom:auto;top:calc(16px + env(safe-area-inset-top, 0px))}@media (prefers-reduced-motion:reduce){.blk.flash{animation:none}.bar i{transition:none}}.tcheck{margin-left:4px;color:var(--ok);font-weight:900}.tab[aria-selected=true] .tcheck{color:#86efac}.problem .odai{font-size:19px}.odai.small{font-size:17px}.form{margin:0;font-size:14px;color:var(--sub)}.form b{color:var(--ink);font-size:16px}.givens{display:flex;flex-wrap:wrap;gap:8px}.gv{display:inline-flex;align-items:baseline;gap:6px;background:#fef3c7;border-radius:10px;padding:4px 10px}.gvn{font-size:12px;color:var(--c-given)}.gv b,.gvn{font-weight:900}.gv b{font-size:17px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.gv small{font-size:11px;font-weight:700;margin-left:2px;color:var(--sub)}.plain.dots li{position:relative;padding-left:14px;font-size:14px}.plain.dots li:before{content:"";position:absolute;left:2px;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--accent)}.cardgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px;gap:10px}.kcard{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:6px;text-align:left;border:3px solid transparent;background:var(--card);color:var(--ink);border-radius:18px;padding:14px;min-height:120px}.kcard b{font-family:var(--f-display);font-weight:400;font-size:18px;line-height:1.25}.kcard span{font-size:13px;font-weight:700;color:var(--sub);line-height:1.55}.kcard em{position:absolute;right:10px;top:10px;font-style:normal;font-size:12px;font-weight:900;padding:2px 8px;border-radius:999px}.kcard.ok{border-color:var(--ok);background:#f0fdf4}.kcard.alt em,.kcard.ok em{background:var(--ok);color:#fff}.kcard.ng{border-color:#fca5a5;background:#fff1f2;opacity:.75}.kcard.ng em{background:var(--ng);color:#fff}.kcard.alt{border-color:#86efac}.kcard:disabled{cursor:default}.kcard:disabled:not(.ok):not(.alt):not(.ng){opacity:.5}.warncard{background:#fff1f2;gap:4px}.warncard b{color:var(--ng);font-size:15px}.warncard span{font-size:14px;font-weight:700}.coursetabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:6px;gap:6px}.coursetab{min-height:48px;border:none;border-radius:14px;background:var(--card);color:var(--ink);font-size:14px;font-weight:700;padding:6px}.coursetab[aria-selected=true]{background:var(--accent);color:#fff;font-weight:900}.chip.given{background:#fef3c7;color:var(--c-given)}.chip.memo{background:#ede9fe;color:var(--c-memo);min-width:40px}.chip.sym{background:hsla(0,0%,100%,.22);color:#fff;min-width:40px;font-size:16px}.act.ansb{background:var(--c-ans)}.act.haltb{background:#475569}.card.mini{padding:12px 16px;gap:10px}.card.mini summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px;min-height:28px}.card.mini summary:before{content:"▸";color:var(--sub);font-size:13px}.card.mini[open] summary:before{content:"▾"}.card.mini summary::-webkit-details-marker{display:none}.card.mini .problem{padding:0}.ideabox{display:flex;flex-direction:column;gap:6px;align-items:flex-start;background:#ecfdf5;border-radius:14px;padding:10px 12px}.ideabox p{margin:0;font-size:14px;font-weight:700;line-height:1.7}.numgrid.wide{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}.numbtn.given{background:#fffbeb;color:var(--c-given);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;padding:4px}.numbtn.given[aria-pressed=true]{border-color:var(--c-given);background:#fef3c7}.numbtn.memo{color:var(--c-memo)}.numbtn.memo[aria-pressed=true]{border-color:var(--c-memo);background:#ede9fe}.numsub{font-size:11px;font-weight:700;color:var(--sub)}.numinput{height:48px;border-radius:12px;border:2px solid var(--line);padding:0 12px;font-size:16px;background:var(--card);color:var(--ink)}.sheet .row .cta{height:48px;font-size:15px}.trial{align-items:stretch;gap:12px}.trialq{color:var(--on-panel);font-weight:700;font-size:15px;line-height:1.6}.log{list-style:none;margin:0;padding:8px 0;background:#0f172a;border-radius:14px;max-height:360px;overflow:auto;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.log li{color:#e2e8f0;font-size:14px;font-weight:700;padding:3px 12px;line-height:1.5}.log li.ansline{color:#f0abfc}.log li.more{color:#94a3b8;font-weight:500}.trialres{border-radius:12px;padding:10px 12px;font-weight:900;font-size:15px}.trialres.ok{background:#14532d;color:#dcfce7}.trialres.ng{background:#7f1d1d;color:#fee2e2}.sample{align-items:stretch;gap:10px}.sq{color:var(--on-panel);font-weight:900;font-size:15px}.sblk{display:flex;flex-direction:column}.sblk,.shd{align-self:flex-start}.shd{background:var(--c-event);color:#fff;font-weight:900;padding:8px 12px;border-radius:12px 12px 4px 4px}.sbody{border-left:12px solid var(--c-event);padding:8px 0 8px 8px;display:flex;flex-direction:column;gap:6px;border-radius:0 0 0 10px}.sact{display:flex;align-items:center;flex-wrap:wrap;gap:4px;background:var(--c-act);color:#fff;font-weight:900;font-size:14px;border-radius:12px;padding:4px 10px;min-height:42px}.sact.ansb{background:var(--c-ans)}.sact .chip{min-height:30px;padding:3px 10px;font-size:13px}.sres{color:#86efac;font-weight:900;font-size:14px}.courselist{display:flex;flex-direction:column;gap:8px}.courseitem{background:var(--card);border-radius:16px;padding:12px 14px;display:grid;grid-template-columns:1fr auto;grid-gap:2px 10px;gap:2px 10px}.courseitem b{font-size:16px;font-weight:900}.courseitem span{grid-column:1;font-size:13px;color:var(--sub)}.courseitem .cnum{grid-column:2;grid-row:1;font-weight:900;color:var(--accent)}@media (max-width:420px){.cardgrid{grid-template-columns:minmax(0,1fr)}.kcard{min-height:0}}.kcard.unit{min-height:110px}.kcard.unit .gives{color:var(--accent);font-weight:900}.kcard.unit.on{border-color:var(--accent);background:#f0fdfa}.kcard.unit.on em{background:var(--accent);color:#fff}.kcard.unit:disabled{opacity:1;background:#f8fafc}.kcard.unit:disabled em{background:var(--line);color:var(--sub)}.tab .tcheck{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;border-radius:9px;background:var(--accent);color:#fff;font-size:11px;padding:0 5px}.tab[aria-selected=true] .tcheck{background:#fff;color:var(--ink)}.altbadge{background:#fef3c7;border:3px solid var(--star);border-radius:20px;padding:12px 16px;display:flex;flex-direction:column;gap:2px}.altbadge b{font-family:var(--f-display);font-weight:400;font-size:22px;color:#92400e}.altbadge span{font-weight:700;font-size:14px}.live{border-radius:16px;padding:10px 14px;display:flex;flex-direction:column;gap:2px;border:2px solid transparent}.livehead{font-size:12px;font-weight:900;letter-spacing:.04em;opacity:.8}.livebody{font-size:15px;font-weight:900;line-height:1.5}.liveregs{display:flex;flex-wrap:wrap;gap:4px 10px;font-size:12px;font-weight:700;opacity:.85;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.live.wait{background:var(--card);border-color:var(--line);color:var(--sub)}.live.ok{background:#f0fdf4;border-color:#86efac;color:#14532d}.live.warn{background:#fffbeb;border-color:#fcd34d;color:#78350f}.live.ng{background:#fff1f2;border-color:#fca5a5;color:#7f1d1d}@media (max-width:899px){body.tab-code .live{position:-webkit-sticky;position:sticky;top:60px;z-index:4;box-shadow:0 4px 12px rgba(24,32,46,.08)}}.guide{background:#f0fdfa;border:2px solid #99f6e4}.guidelist{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:6px;font-size:14px;line-height:1.6}.guidelist b{color:var(--accent)}.ideabox b{font-weight:900}.solution{margin:6px 0;padding-left:20px;gap:4px;font-size:14px;font-weight:700}.fig,.solution{display:flex;flex-direction:column}.fig{margin:0;align-items:center;gap:2px;background:#fbfaf6;border-radius:14px;padding:10px}.fig svg{max-width:100%;height:auto;display:block}.fig figcaption{font-size:11px;color:var(--sub);font-weight:700}.pb.special{box-shadow:inset 0 0 0 2px hsla(0,0%,100%,.55)}.palnote{margin:0;flex-basis:100%;font-size:12px;font-weight:700;color:#99f6e4}.solopill{background:var(--card);border-radius:999px;padding:8px 14px}.or,.solopill{font-size:13px;font-weight:700;color:var(--sub)}.or{display:flex;align-items:center;gap:10px}.or:after,.or:before{content:"";flex:1 1;height:2px;background:var(--line)}.stagecard.locked{opacity:.6}.locktag{margin-left:6px;letter-spacing:0;font-size:11px;font-weight:900;color:var(--sub);background:var(--bg);padding:1px 6px;border-radius:6px}.lockinfo{background:#fffbeb;gap:4px}.lockinfo b{font-size:15px}.lockinfo span{font-size:13px;font-weight:700;color:var(--sub)}.homework{background:#f0fdfa;border:2px solid #99f6e4}.stagecard.done{background:#f0fdf4}.dash{max-width:900px;margin:0 auto;padding:16px 16px 80px;display:flex;flex-direction:column;gap:14px}.coursetabs.two{grid-template-columns:repeat(2,minmax(0,1fr))}.coursetabs.three{grid-template-columns:repeat(3,minmax(0,1fr))}.banner.ok{background:#dcfce7;color:#14532d}.tb.on{border-color:var(--accent);background:#f0fdfa;color:var(--accent)}.kidrow{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;padding:8px 0;border-top:1px solid var(--line)}.kidrow b{font-size:16px;margin-right:8px}.codechip{display:inline-block;margin-left:6px;background:var(--bg);border-radius:8px;padding:2px 8px;font-size:13px;font-weight:900;letter-spacing:.08em;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.field select,.field textarea{border-radius:14px;border:2px solid var(--line);padding:10px 14px;font-size:16px;width:100%;background:var(--card);color:var(--ink);font-family:inherit}.field select{height:50px}.coursebox{gap:6px;padding:10px 0;border-top:1px solid var(--line)}.coursebox,.worldbars{display:flex;flex-direction:column}.worldbars{gap:4px}.wbar{display:grid;grid-template-columns:minmax(0,1fr) 120px 44px;align-items:center;grid-gap:8px;gap:8px;font-size:13px}.wname{white-space:nowrap;text-overflow:ellipsis;font-weight:700}.wname,.wtrack{overflow:hidden}.wtrack{height:8px;border-radius:4px;background:var(--line)}.wtrack i{display:block;height:100%;background:var(--accent);border-radius:4px}.wnum{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;color:var(--sub);font-weight:700}.tablewrap{overflow-x:auto}.ptable{width:100%;border-collapse:collapse;font-size:14px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.ptable th{text-align:left;font-size:12px;color:var(--sub);border-bottom:2px solid var(--line)}.ptable td,.ptable th{padding:6px 8px;white-space:nowrap}.ptable td{border-bottom:1px solid var(--line)}.ptable .mono{letter-spacing:.08em;font-weight:900}.ptable .okc{color:var(--ok);font-weight:900}.linkbtn{background:none;border:none;padding:0;color:var(--accent);font-weight:900;font-size:14px;text-decoration:underline}.entry{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:8px;gap:8px}@media (max-width:560px){.entry{grid-template-columns:repeat(2,minmax(0,1fr))}}.entry a{background:var(--card);border-radius:14px;padding:12px 10px;text-decoration:none;color:var(--ink);font-weight:900;font-size:14px;text-align:center;display:flex;flex-direction:column;gap:2px}.entry a span{font-size:11px;font-weight:700;color:var(--sub)}.printsheet{display:none}@media print{body{background:#fff}.noprint,.toast{display:none!important}.dash{padding:0}.printsheet{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:10mm;gap:10mm}.printcard{border:1.5px dashed #94a3b8;border-radius:6mm;padding:6mm;page-break-inside:avoid;break-inside:avoid;display:flex;flex-direction:column;gap:2mm}.pbrand{font-family:var(--f-display);font-size:12pt;color:#4a5568}.pname{font-size:16pt}.pcode,.pname{font-weight:900}.pcode{font-size:28pt;letter-spacing:.15em}.pinfo{font-size:9pt;color:#4a5568}}.admintabs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));grid-gap:6px;gap:6px;position:-webkit-sticky;position:sticky;top:0;z-index:5;background:var(--bg);padding-block:6px}.kpis{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));grid-gap:10px;gap:10px}.kpi{background:var(--card);border-radius:18px;padding:14px 16px;display:flex;flex-direction:column;gap:2px}.kpi b{font-family:var(--f-display);font-weight:400;font-size:28px;line-height:1.2;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.kpi.strong{background:var(--accent);color:#fff}.kpi.strong .klab,.kpi.strong .ksub{color:#ccfbf1}.klab{font-weight:900}.klab,.ksub{font-size:12px;color:var(--sub)}.ksub{font-weight:700}.search{height:48px;border-radius:14px;padding:0 14px;font-size:16px;width:100%}.adminrow{border-top:1px solid var(--line);padding:10px 0;gap:6px}.adminrow,.arhead{display:flex;flex-direction:column}.arhead{gap:1px}.arhead b{font-size:16px}.arhead span{font-size:13px;font-weight:700}.classline{display:flex;align-items:center;gap:8px 12px;flex-wrap:wrap;font-size:14px;font-weight:700;background:var(--bg);border-radius:12px;padding:8px 10px}.classline input[type=date]{height:36px;border-radius:10px;border:2px solid var(--line);padding:0 8px;font-family:inherit;background:var(--card);color:var(--ink)}.okc{color:var(--ok)}.ngc,.okc{font-weight:900}.ngc{color:var(--ng)}.wbar.wide{grid-template-columns:minmax(0,1fr) 160px 80px}@media (max-width:600px){.admintabs{grid-template-columns:repeat(3,minmax(0,1fr))}.wbar.wide{grid-template-columns:minmax(0,1fr) 80px 64px}}.tb.primary{background:var(--accent);border-color:var(--accent);color:#fff}.ptable td.tools{display:flex;gap:6px}.monitornote{background:#f0fdfa;border-radius:12px;padding:10px 12px;color:var(--ink)}.monitornote b{color:var(--accent)}.admintabs.seven{grid-template-columns:repeat(7,minmax(0,1fr))}@media (max-width:760px){.admintabs.seven{grid-template-columns:repeat(4,minmax(0,1fr))}}.daychart,.hourchart{display:flex;align-items:stretch;gap:2px;height:150px}.hourchart{height:90px}.dcol,.hcol{flex:1 1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:2px}.dbar{position:relative;flex:1 1;width:100%;display:block}.dbar i{position:absolute;left:10%;right:10%;bottom:0;border-radius:3px 3px 0 0;display:block}.dbar i.pv{background:#99d5cf}.dbar i.uv{background:var(--accent);left:25%;right:25%}.dnum{font-weight:900;color:var(--accent)}.dday,.dnum{font-size:10px;height:14px;line-height:14px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.dday{color:var(--sub)}.lg{display:inline-block;width:10px;height:10px;border-radius:2px;margin:0 4px 0 8px;vertical-align:-1px}.lg.uv{background:var(--accent)}.lg.pv{background:#99d5cf}.twocol{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:12px;gap:12px}.search{height:40px;border-radius:12px;border:2px solid var(--line);padding:0 12px;font-family:inherit;font-size:15px;min-width:220px;background:var(--card);color:var(--ink)}.ptable tr.selrow td{background:#f0fdfa}.ptable td .hint{font-size:12px}.chips{display:flex;flex-wrap:wrap;gap:6px}.chips .codechip{margin-left:0;letter-spacing:0}.timeline{display:flex;flex-direction:column;gap:8px}.evday{font-size:12px;font-weight:900;color:var(--sub);border-bottom:1px solid var(--line);padding-bottom:2px}.evlist{display:flex;flex-direction:column;gap:4px;margin:4px 0 0;padding:0;list-style:none}.evline{display:grid;grid-template-columns:70px minmax(0,1fr);grid-gap:8px;gap:8px;font-size:14px}.evtime{color:var(--sub);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:13px}.evbody{display:flex;flex-wrap:wrap;gap:4px 8px;align-items:baseline;min-width:0}.evwho{font-weight:900}.evstage{font-size:12px;font-weight:700;color:var(--c-cond);background:#eff6ff;border-radius:6px;padding:1px 6px}.evcode{width:100%;margin:4px 0 0;background:var(--bg);border-radius:10px;padding:8px 10px;font-family:inherit;font-size:13px;white-space:pre-wrap}.livebanner{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;background:#fef3c7;color:#78350f}.noticecard{border:2px solid #f59e0b}.noticecard p{margin:0;white-space:pre-wrap;font-weight:700}.armednote .late{color:var(--ng)}.ranking summary{cursor:pointer}.ranklist{list-style:none;margin:4px 0 0;padding:0;display:flex;flex-direction:column;gap:2px}.ranklist li{display:grid;grid-template-columns:32px minmax(0,1fr) auto;grid-gap:8px;gap:8px;padding:4px 8px;border-radius:8px;font-size:14px}.ranklist li.me{background:#f0fdfa;font-weight:900}.ranklist .rk{color:var(--sub);font-weight:900;text-align:right}.numin{width:80px;padding:0 8px}.classline select,.numin{height:36px;border-radius:10px;border:2px solid var(--line);font-family:inherit;background:var(--card);color:var(--ink)}.classline select{padding:0 6px}html.noswipe,html.noswipe body{overscroll-behavior-x:none;overscroll-behavior-y:contain}.admintabs.five{grid-template-columns:repeat(5,minmax(0,1fr))}.livedot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#f59e0b;margin-left:6px;vertical-align:2px;animation:pulse 1.6s infinite}@keyframes pulse{50%{opacity:.3}}@media (prefers-reduced-motion:reduce){.livedot{animation:none}}.livehead{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.bignum{font-family:var(--f-display);font-size:22px;color:var(--accent)}.livegrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));grid-gap:8px;gap:8px}.livegrid.big{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}.livecard{position:relative;background:var(--bg);border-radius:14px;padding:10px 12px 10px 44px;display:flex;flex-direction:column;min-height:56px;justify-content:center;border:2px solid transparent}.livecard b{font-size:16px}.livegrid.big .livecard b{font-size:22px}.livecard .lsub{font-size:12px;color:var(--sub);font-weight:700}.livecard .lmark{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;background:var(--card);border:2px solid var(--line)}.livecard.clear{background:#dcfce7;border-color:var(--ok)}.livecard.clear .lmark{background:var(--ok);color:#fff;border-color:var(--ok)}.livecard.trying{background:#fef3c7;border-color:#f59e0b}.livecard.trying .lmark{color:#b45309;border-color:#f59e0b}.chipcheck{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:10px;background:var(--bg);font-size:14px;font-weight:700;border:2px solid transparent}.chipcheck.on{border-color:var(--accent);background:#f0fdfa}.chipcheck select{height:30px;border-radius:8px;border:2px solid var(--line);font-family:inherit}.codechip.late{background:#fee2e2;color:var(--ng)}.ptable td.wrapcell{white-space:normal;min-width:160px}.tb.disabled{opacity:.45;pointer-events:none}.kpis.small{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.kpis.small .kpi{background:var(--bg);padding:10px 12px}.kpis.small .kpi b{font-size:22px}.kpi b.smallb{font-size:15px;font-family:var(--f-body);font-weight:900}.record{display:flex;flex-direction:column;gap:10px}.record .evline{grid-template-columns:100px minmax(0,1fr)}.replay{background:var(--bg);border-radius:14px;padding:12px;display:flex;flex-direction:column;gap:6px}.replay p{margin:0}.replay .evcode{background:var(--card)}.lessonmode{max-width:1400px;margin:0 auto;padding:16px 20px 120px;display:flex;flex-direction:column;gap:14px;font-size:18px}.lessonmode .problem .odai{font-size:24px}.lessonhead{justify-content:space-between;align-items:flex-end;gap:16px}.lessoncount,.lessonhead{display:flex;flex-wrap:wrap}.lessoncount{align-items:baseline;gap:6px}.lessoncount b{font-family:var(--f-display);font-size:64px;line-height:1;color:var(--accent);font-weight:400}.lessoncount span{font-size:20px;font-weight:900}.lessonctl{position:fixed;left:0;right:0;bottom:0;background:var(--card);border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom));display:flex;gap:8px;align-items:center;flex-wrap:wrap;z-index:10}.lessonctl select,.lessonmode header select{height:40px;border-radius:10px;border:2px solid var(--line);font-family:inherit;max-width:100%}.ranklist.big li{font-size:22px;padding:8px 12px}.explainsteps{margin:0;padding-left:1.8em;display:flex;flex-direction:column;gap:8px;font-size:24px;font-weight:700}.explainsteps li{min-height:1.5em;border-bottom:2px dashed var(--line)}.explainsteps li.on{border-bottom-color:transparent;color:var(--ink)}.trace{margin:0;padding-left:1.6em;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.trace.big{font-size:20px;display:flex;flex-direction:column;gap:4px}.answerbig{font-size:28px;margin:0}.answerbig b{font-family:var(--f-display);font-weight:400;color:var(--c-ans)}.printpage{max-width:820px;margin:0 auto;padding:16px;gap:16px}.printpage,.sheet{display:flex;flex-direction:column}.sheet{background:#fff;color:#111;border-radius:12px;padding:14mm 12mm;gap:10px;box-shadow:0 1px 4px rgba(0,0,0,.08)}.sheet .problem{padding:0}.sheet .fig svg{max-height:70mm}.sheethead{display:flex;justify-content:space-between;font-size:12px;color:#444;border-bottom:1px solid #999;padding-bottom:4px}.nameblank{display:inline-block;min-width:40mm;border-bottom:1px solid #333;font-weight:900;font-size:15px}.sheettitle{font-family:var(--f-display);font-weight:400;font-size:20px;margin:0}.sheetbox{border:1.5px solid #333;border-radius:8px;padding:8px 10px;display:flex;flex-direction:column;gap:6px}.unitchoices{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:14px}.writelines{margin:0;padding-left:1.6em}.writelines li{height:10mm;border-bottom:1px dashed #888}.answerrow{flex-direction:row;align-items:center;gap:10px}.answerblank{flex:1 1;height:12mm;border:1.5px solid #333;border-radius:6px;max-width:80mm}.hwlist li{padding:2px 0}.commentbox{width:100%;border-radius:8px;border:2px solid var(--line);padding:8px;font-family:inherit;font-size:15px}.commentprint{display:none;margin:0;white-space:pre-wrap;min-height:20mm}.sheetfoot{text-align:right;font-size:13px;color:#444}@media print{@page{size:A4;margin:0}body,html{background:#fff!important}.printpage{padding:0;max-width:none;gap:0}.sheet{box-shadow:none;border-radius:0;page-break-after:always;break-after:page;min-height:296mm}.sheet:last-child{page-break-after:auto;break-after:auto}.commentprint{display:block}.noprint{display:none!important}}.stack{display:flex;flex-direction:column;gap:14px}.demobar{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;background:var(--panel);color:var(--on-panel);border-radius:14px;padding:6px 10px}.demobar .hint{color:var(--on-panel-sub)}.wrap.presenter{max-width:none}.admintabs.many{display:flex;flex-wrap:wrap;gap:6px}.admintabs.many .coursetab{flex:1 1 auto;min-width:84px;position:relative}.onlinebox{border:2px solid #f59e0b}.variants{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:10px;gap:10px}.variant{background:var(--bg);border-radius:12px;padding:8px 10px}.variant .evcode{background:var(--card);margin:4px 0 0}.adminrow.fb.new{background:#fffbeb;border-radius:12px;padding:10px}.fbbody{margin:0;white-space:pre-wrap;font-size:15px}.chal{display:inline-block;border-radius:8px;padding:2px 8px;font-size:13px;font-weight:900;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;border:1.5px solid transparent}.chal.clear{background:#dcfce7;color:#14532d;border-color:#86efac}.chal.trying{background:#fef3c7;color:#78350f;border-color:#fcd34d}.chal.opened{background:var(--bg);color:var(--sub);border-color:var(--line)}.chalperson{gap:6px}.linkbtn.plainlink{color:var(--sub);text-decoration:none;font-size:12px}label.check{display:inline-flex;align-items:center;gap:6px;font-size:13px;margin-top:8px}.lessonbar{margin-bottom:8px}.lessontag{font-size:13px;padding:2px 8px;border-radius:999px;background:#f59e0b;color:#1f2937}.lessonbar .tdot{display:inline-block;width:9px;height:9px;border-radius:50%;vertical-align:middle}.intro{max-width:640px}.kicker{font-size:13px;font-weight:900;color:var(--accent);letter-spacing:.04em;margin-bottom:4px}.intro .lead{font-size:16px;line-height:1.8;margin:0}.points{display:grid;grid-gap:8px;gap:8px}.points li{background:var(--card);border-radius:14px;padding:10px 14px 10px 38px;position:relative;font-weight:700}.points li:before{content:"✓";position:absolute;left:14px;color:var(--accent);font-weight:900}.introsec{display:grid;grid-gap:12px;gap:12px}.introsec .h2{margin:12px 0 0}.isteps{list-style:none;padding:0;margin:0;display:grid;grid-gap:10px;gap:10px}.isteps li{display:flex;gap:12px;align-items:flex-start}.isteps li>span:last-child{display:grid;grid-gap:2px;gap:2px}.istepno{flex:none;width:30px;height:30px;border-radius:50%;background:var(--panel);color:#fff;display:grid;place-items:center;font-weight:900}.ifeats{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));grid-gap:10px;gap:10px}.ifeat{display:grid;grid-gap:4px;gap:4px;align-content:start}.ifeat span{font-size:14px;color:var(--sub);line-height:1.7}.faqs{display:grid;grid-gap:8px;gap:8px}.faq summary{font-weight:900;cursor:pointer}.faq p{margin:8px 0 0;color:var(--sub);line-height:1.8}.ictas{display:grid;grid-gap:10px;gap:10px}.ictas .cta{height:auto;min-height:56px;padding:8px 16px;text-align:center}.ctasub{display:block;font-size:12px;font-weight:700;opacity:.85}.plantable{width:100%;margin-bottom:10px}.introlinks,.introothers{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center}.introlinks a,.introothers a{font-weight:900;color:var(--accent)}.introothers{border-top:2px solid var(--line);padding-top:14px}.introsec{grid-template-columns:minmax(0,1fr)}.plantable td:last-child{white-space:normal;min-width:140px}