:root{
  --bg:#f5f6fa;--card:#ffffff;--ink:#141a2e;--muted:#5b6478;--line:#e1e5ee;
  --brand:#1e3a8a;--brand-2:#172e6e;--brand-soft:#e4e9f7;--brand-ink:#1b2f6b;
  --accent:#d97706;--accent-soft:#fef3c7;--accent-ink:#7c4a03;
  --ok:#15803d;--ok-soft:#dcfce7;--mark:#fde68a;
  --radius:14px;--shadow:0 1px 2px rgba(20,26,46,.05),0 10px 28px rgba(20,26,46,.07);
  --serif:'Literata',Georgia,'Times New Roman',serif;
  --sans:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box}
html{color-scheme:light;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;font-family:var(--sans);font-size:15px;line-height:1.55;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}
[hidden]{display:none!important}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3{line-height:1.25;margin:0 0 .5rem}
h1{font-size:1.65rem}h2{font-size:1.2rem}h3{font-size:1.02rem}
p{margin:.25rem 0}
.muted{color:var(--muted)}.small{font-size:.85rem}.spacer{flex:1}
.loading{text-align:center;color:var(--muted);padding:3rem 1rem}
mark{background:var(--mark);color:inherit;border-radius:3px;padding:0 .12em}

/* header / footer */
.top{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:.8rem;padding:.55rem 1rem;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:600;color:var(--ink);text-decoration:none;font-size:1rem;white-space:nowrap}
.brand b{color:var(--brand)}
.brand img{border-radius:8px;display:block}
.search{flex:1;max-width:460px;margin:0 auto}
.search input{width:100%;padding:.5rem .85rem;border:1px solid var(--line);border-radius:999px;background:#f7f8fb;outline:none}
.search input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-soft)}
.hdr-right{margin-left:auto;display:flex;align-items:center;gap:.35rem}
.foot{text-align:center;color:var(--muted);font-size:.85rem;padding:1.5rem 16px 2rem;display:grid;gap:.25rem}
@media (max-width:700px){
  .top{flex-wrap:wrap;gap:.5rem;padding:.5rem .75rem}
  .brand span{display:none}
  .hdr-right .btn.ghost{display:none}
  .search{order:3;flex-basis:100%;max-width:none}
  #btn-random span{display:none}
}

/* layout */
.app{flex:1;width:100%;max-width:980px;margin:0 auto;padding:1.1rem 16px 2rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.1rem 1.2rem;margin-bottom:1rem}
.row{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}
.crumbs{font-size:.88rem;color:var(--muted);margin-bottom:.6rem;display:flex;flex-wrap:wrap;gap:.3rem}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--brand);text-decoration:underline}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.55rem .95rem;border-radius:10px;border:1px solid var(--line);background:#fff;font-weight:600;cursor:pointer;text-decoration:none;color:var(--ink);transition:background .15s,border-color .15s,transform .05s;white-space:nowrap}
.btn:hover{border-color:var(--brand);background:#f7f8fd}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-2)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn.ghost:hover{background:#eef0f6;color:var(--ink);border-color:transparent}
.btn.small{padding:.35rem .65rem;font-size:.85rem;border-radius:8px}
.btn.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-ink)}
.btn[disabled]{opacity:.45;cursor:default;pointer-events:none}

/* badges / chips */
.badge{display:inline-flex;align-items:center;gap:.3rem;font-size:.76rem;font-weight:600;padding:.15rem .55rem;border-radius:999px;background:var(--brand-soft);color:var(--brand-ink);white-space:nowrap}
.badge.type{background:#f1f3f8;color:var(--muted)}
.badge.read{background:var(--ok-soft);color:var(--ok)}
.chips{display:flex;flex-wrap:wrap;gap:.4rem}
.chip{display:inline-flex;align-items:center;gap:.35rem;padding:.35rem .75rem;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:.86rem;font-weight:500;color:var(--ink);text-decoration:none;cursor:pointer}
.chip:hover{border-color:var(--brand)}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
.chip .n{font-size:.76rem;color:var(--muted);font-weight:600}
.chip.on .n{color:#dbe3ff}

/* home */
.hero{display:grid;gap:.4rem;padding:1.4rem 1.2rem;background:linear-gradient(135deg,#1e3a8a 0%,#2d4fb5 60%,#3b63d6 100%);color:#fff;border-radius:var(--radius);margin-bottom:1rem;box-shadow:var(--shadow)}
.hero h1{color:#fff;font-size:1.55rem}
.hero p{color:#dbe3ff;max-width:60ch}
/* stat slideshow in the hero: one number per click */
.sshow{margin-top:.7rem;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);border-radius:12px;padding:.8rem .95rem;cursor:pointer;user-select:none;outline:none;transition:background .15s,border-color .15s}
.sshow:hover,.sshow:focus-visible{background:rgba(255,255,255,.19);border-color:rgba(255,255,255,.5)}
.sslide{display:flex;align-items:center;gap:.85rem;min-height:3.6rem}
.sslide.anim{animation:slidein .35s ease-out}
@keyframes slidein{from{opacity:0;transform:translateX(16px)}to{opacity:1;transform:none}}
.sico{font-size:2rem;flex:none;width:2.6rem;text-align:center;line-height:1}
.sbody{display:grid;gap:.08rem;min-width:0}
.sval{font-size:2.05rem;line-height:1.05;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.slbl{font-size:.98rem;color:#fff;font-weight:600;line-height:1.25}
.ssub{font-size:.82rem;color:#c7d2fe;line-height:1.4}
.ssub a{color:#fff;font-weight:600}
.snext{margin-left:auto;flex:none;width:2.1rem;height:2.1rem;border-radius:50%;background:rgba(255,255,255,.22);display:grid;place-items:center;font-size:1.35rem;color:#fff;transition:background .15s,transform .15s}
.sshow:hover .snext{background:rgba(255,255,255,.35);transform:translateX(2px)}
.sfoot{display:flex;align-items:center;gap:.6rem;margin-top:.6rem;flex-wrap:wrap}
.sdots{display:flex;gap:4px;flex-wrap:wrap}
.sdots i{display:block;width:6px;height:6px;border-radius:3px;background:rgba(255,255,255,.38);transition:width .2s,background .2s}
.sdots i.on{background:#fff;width:18px}
.scount{font-size:.74rem;color:#c7d2fe;font-variant-numeric:tabular-nums}
.shint{font-size:.76rem;color:#c7d2fe;margin-left:auto}
.shint a{color:#fff}
@media (max-width:560px){.sval{font-size:1.7rem}.sico{font-size:1.6rem;width:2.1rem}.shint{margin-left:0;flex-basis:100%}}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:.7rem}
.tcard{display:flex;align-items:center;gap:.7rem;padding:.8rem .9rem;background:#fff;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink);transition:border-color .15s,transform .1s,box-shadow .15s}
.tcard:hover{border-color:var(--brand);transform:translateY(-1px);box-shadow:var(--shadow)}
.tcard .ico{font-size:1.5rem;width:2.2rem;text-align:center;flex:none}
.tcard .name{font-weight:600;line-height:1.25}
.tcard .en{font-size:.78rem;color:var(--muted)}
.tcard .cnt{margin-left:auto;font-weight:700;color:var(--brand);font-size:.95rem;flex:none}
.sec-title{display:flex;align-items:baseline;gap:.6rem;margin:1.2rem 0 .6rem}
.sec-title h2{margin:0}

/* lists */
.plist{list-style:none;margin:0;padding:0;display:grid;gap:.55rem}
.pitem{display:block;padding:.8rem .95rem;background:#fff;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.pitem:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.pitem .meta{display:flex;align-items:center;gap:.45rem;flex-wrap:wrap;margin-bottom:.3rem}
.pitem .no{font-weight:700;color:var(--brand);font-size:.85rem}
.pitem .q{font-family:var(--serif);font-size:1rem;line-height:1.45}
.pitem .q .ask{color:var(--muted);display:block;font-size:.92rem;margin-top:.15rem}
.pitem .hit{font-size:.84rem;color:var(--muted);margin-top:.3rem}
.empty{text-align:center;color:var(--muted);padding:2rem 1rem}

/* essay page */
.ehead{display:flex;align-items:flex-start;gap:.8rem;flex-wrap:wrap;margin-bottom:.6rem}
.ehead h1{font-size:1.35rem;margin:0}
.task{background:#fbfbfd;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:10px;padding:1rem 1.1rem;font-family:var(--serif);font-size:1.02rem}
.task .lbl{font-family:var(--sans);font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin-bottom:.35rem}
.task .inst{color:var(--muted);font-size:.92rem}
.task .prompt{margin:.6rem 0;font-weight:600;color:var(--ink);line-height:1.5}
.task .prompt p{margin:.25rem 0}
.toolbar{display:flex;align-items:center;gap:.45rem;flex-wrap:wrap;margin:.9rem 0 .6rem}
.wc{font-size:.84rem;color:var(--muted);padding:.3rem .65rem;border-radius:999px;background:#f1f3f8;font-weight:600}
.position{display:flex;gap:.6rem;align-items:flex-start;padding:.7rem .9rem;background:var(--accent-soft);border-radius:10px;color:var(--accent-ink);font-size:.93rem;margin-bottom:.8rem}
.position b{white-space:nowrap}
.essay{font-family:var(--serif);font-size:1.1rem;line-height:1.72;color:#1a2140}
.essay p{margin:0 0 1.05rem;text-align:left;hyphens:auto}
.essay p:last-child{margin-bottom:0}
.essay p::first-letter{}
.pending{padding:2rem 1rem;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:10px;font-style:italic}
.sect{margin-top:1.1rem;padding-top:1rem;border-top:1px solid var(--line)}
.sect h2{font-size:1.02rem;display:flex;align-items:center;gap:.45rem;margin-bottom:.55rem}
.outline{margin:0;padding-left:1.1rem;display:grid;gap:.3rem}
.outline li{line-height:1.45}
.outline li b{color:var(--brand)}
.vtable{width:100%;border-collapse:collapse;font-size:.95rem}
.vtable td{padding:.45rem .5rem;border-top:1px solid var(--line);vertical-align:top}
.vtable tr:first-child td{border-top:0}
.vtable .w{font-family:var(--serif);font-weight:600;width:48%}
.vtable .vi{color:#2b3350}
.vtable.hide .vi span{background:#e5e8ef;color:transparent;border-radius:4px;cursor:pointer;user-select:none;transition:color .1s}
.vtable.hide .vi span.show{background:transparent;color:#2b3350}
.note{background:#f6f8fc;border-radius:10px;padding:.85rem 1rem;line-height:1.6}
.navrow{display:flex;justify-content:space-between;gap:.6rem;margin-top:1.1rem;flex-wrap:wrap}
.navrow .btn{max-width:48%;overflow:hidden;text-overflow:ellipsis}
.related .pitem .q{font-size:.95rem}
.toast{position:fixed;left:50%;bottom:1.4rem;transform:translateX(-50%) translateY(20px);background:#141a2e;color:#fff;padding:.55rem .95rem;border-radius:999px;font-size:.88rem;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;z-index:20}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* stats */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.6rem;margin:.6rem 0}
.tile{padding:.7rem .85rem;border:1px solid var(--line);border-radius:12px;background:#fbfbfd;display:grid;gap:.1rem}
.tile .tl{font-size:.78rem;color:var(--muted)}
.tile b{font-size:1.5rem;line-height:1.15;font-weight:600}
.tile .td{font-size:.76rem;color:var(--muted)}
.bars{display:grid;gap:.3rem}
.brow{display:grid;grid-template-columns:minmax(120px,34%) 1fr;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink);padding:.12rem .25rem;border-radius:8px}
.brow:hover{background:#f3f5fa}
.blabel{font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.btrack{position:relative;height:16px;display:flex;align-items:center;gap:.5rem}
.bfill{display:block;height:14px;background:var(--brand);border-radius:0 4px 4px 0;flex:none;transition:width .3s}
.bval{font-size:.84rem;font-weight:600;color:var(--ink);white-space:nowrap;font-variant-numeric:tabular-nums}
.tscroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.matrix{border-collapse:separate;border-spacing:2px;font-size:.85rem;min-width:640px;width:100%}
.matrix th{font-weight:600;text-align:left;padding:.35rem .45rem;color:var(--muted);font-size:.78rem;vertical-align:bottom}
.matrix thead th{text-align:center;max-width:110px;line-height:1.2}
.matrix tbody th a{color:var(--ink);text-decoration:none;white-space:nowrap}
.matrix td{text-align:center;padding:.35rem .4rem;border-radius:6px;min-width:52px;font-variant-numeric:tabular-nums}
.matrix td a{color:inherit;text-decoration:none;display:block}
.matrix td.tot,.matrix tr.tot td{font-weight:700;color:var(--ink)}
.matrix tr.tot th{color:var(--ink)}
.hist{display:flex;align-items:flex-end;gap:3px;height:140px;padding:0 .25rem;border-bottom:1px solid var(--line)}
.hcol{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;position:relative;min-width:18px}
.hbar{display:block;width:100%;max-width:22px;background:var(--brand);border-radius:4px 4px 0 0;min-height:2px}
.hlab{position:absolute;bottom:-1.2rem;font-size:.68rem;color:var(--muted);font-variant-numeric:tabular-nums}
.hist+p{margin-top:1.4rem}
.ctable{width:100%;border-collapse:collapse;font-size:.93rem}
.ctable td{padding:.45rem .5rem;border-top:1px solid var(--line);vertical-align:top}
.ctable tr:first-child td{border-top:0}
.ctable .w{font-family:var(--serif);font-weight:600;width:38%}
.ctable .vi{color:#2b3350;width:40%}
.ctable .nos{white-space:normal}
.ctable .nos a{display:inline-block;min-width:1.9em;text-align:center;padding:.05rem .35rem;margin:.1rem 0;border-radius:6px;background:var(--brand-soft);color:var(--brand-ink);text-decoration:none;font-size:.8rem;font-weight:600}
.vtable .also{font-family:var(--sans);font-weight:400;font-size:.76rem;color:var(--muted);margin-top:.15rem}
.vtable .also a{text-decoration:none;font-weight:600}
.grid.quick{margin-bottom:.4rem}

/* access (free version / unlock code) */
.btn.access{border-color:var(--accent);color:var(--accent-ink);background:var(--accent-soft)}
.btn.access.ok{border-color:#86efac;color:var(--ok);background:var(--ok-soft)}
.modal{position:fixed;inset:0;z-index:30;background:rgba(20,26,46,.45);display:flex;align-items:center;justify-content:center;padding:1rem}
.sheet{background:#fff;width:100%;max-width:520px;border-radius:16px;padding:1.3rem 1.4rem;box-shadow:var(--shadow)}
.unlock{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.7rem}
.unlock input{flex:1;min-width:180px;padding:.6rem .8rem;border:1px solid var(--line);border-radius:10px;font-family:ui-monospace,Menlo,Consolas,monospace;letter-spacing:.06em;text-transform:uppercase}
.unlock input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.unlock .msg{flex-basis:100%;color:#b91c1c;min-height:1.1em}
.lock{margin-top:1rem;padding:1.4rem 1.2rem;text-align:center;border:1px dashed var(--accent);border-radius:12px;background:#fffbeb}
.lock-ico{font-size:2.2rem}
.lock h2{margin:.3rem 0 .4rem}
.lock p{max-width:56ch;margin:.3rem auto}
.lock .unlock{justify-content:center}
.plink{font-family:var(--sans);font-weight:500;font-size:.74rem;color:var(--brand);text-decoration:none;border:1px solid var(--brand-soft);border-radius:999px;padding:.02rem .45rem;margin-left:.3rem;vertical-align:middle}
.plink:hover{background:var(--brand-soft)}
.ctable .act{width:1%;white-space:nowrap}

/* accounts + highlight popover */
#btn-account.on{border-color:var(--brand);color:var(--brand-ink);background:var(--brand-soft)}
.acc-tabs{margin-bottom:.8rem}
.acc-tabs button{background:none;border:0;padding:.5rem .9rem;font-weight:600;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer}
.acc-tabs button.on{color:var(--brand);border-bottom-color:var(--brand)}
.tabs{display:flex;gap:.25rem;border-bottom:1px solid var(--line)}
.accform{display:grid;gap:.7rem}
.accform label{display:grid;gap:.25rem;font-weight:600;font-size:.92rem}
.accform input{padding:.55rem .75rem;border:1px solid var(--line);border-radius:10px;font:inherit;font-weight:400}
.accform input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.accform .msg{color:#b91c1c;min-height:1.1em}
mark[data-k]{cursor:pointer}
.pop{position:absolute;z-index:25;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:.55rem .7rem;max-width:300px;font-family:var(--sans);font-size:.88rem;display:none;line-height:1.4}
.pop-w{font-weight:700;font-family:var(--serif);font-size:1rem}
.pop-vi{color:#2b3350;margin:.1rem 0 .45rem}
.pop-act{display:flex;gap:.4rem;flex-wrap:wrap}
@media (max-width:700px){#btn-account .acc-name{display:none}}

/* word bank */
.save{border:0;background:none;cursor:pointer;font-size:1.05rem;line-height:1;color:#c3cad8;padding:.05rem .3rem;vertical-align:middle;font-family:var(--sans)}
.save:hover{color:var(--accent);transform:scale(1.15)}
.save.on{color:var(--accent)}
.bankbtn{color:var(--accent-ink);border-color:#fcd34d;background:#fffbeb}
.cnt-badge{display:inline-block;min-width:1.25em;padding:0 .35em;border-radius:999px;background:var(--accent);color:#fff;font-size:.72rem;line-height:1.5;margin-left:.25rem;text-align:center}
.limitnote{color:var(--accent-ink);background:var(--accent-soft);padding:.45rem .7rem;border-radius:8px;margin:.5rem 0}
.limitnote a{color:var(--accent-ink);font-weight:600}
.sessbar{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin-top:.7rem;padding:.45rem .7rem;background:var(--brand-soft);border-radius:10px;font-size:.9rem;color:var(--brand-ink)}
.ptable td.pick{width:1%;padding-right:0}
.ptable input.pick{width:17px;height:17px;accent-color:var(--brand);vertical-align:middle;cursor:pointer}
.ptable .also{font-size:.76rem;color:var(--muted);font-weight:400;font-family:var(--sans);margin-top:.15rem}
.ptable .also a{text-decoration:none;font-weight:600}

/* practice */
.ptable .prog{white-space:nowrap;text-align:right}
.pdots{display:inline-flex;gap:3px;margin-right:.5rem;vertical-align:middle}
.pdots i{display:block;width:8px;height:8px;border-radius:50%;background:#e1e5ee}
.pdots i.on{background:var(--ok)}
.quiz .qq{border:1px solid var(--line);border-radius:12px;padding:.8rem 1rem;margin:0 0 .8rem}
.quiz legend{font-weight:600;padding:0 .3rem}
.quiz .ctx{font-family:var(--serif);font-size:1.05rem;line-height:1.6;background:#fbfbfd;border-left:3px solid var(--brand);padding:.5rem .8rem;border-radius:8px;margin:.4rem 0 .6rem}
.quiz .ctx.big{font-size:1.12rem;line-height:2}
.opts{display:grid;gap:.4rem}
@media (min-width:640px){.opts{grid-template-columns:1fr 1fr}}
.opt{display:flex;align-items:flex-start;gap:.5rem;padding:.5rem .7rem;border:1px solid var(--line);border-radius:10px;cursor:pointer;transition:border-color .15s,background .15s}
.opt:hover{border-color:var(--brand)}
.opt input{margin-top:.25rem;accent-color:var(--brand)}
.opt.right{border-color:var(--ok);background:var(--ok-soft)}
.opt.wrong{border-color:#fca5a5;background:#fee2e2}
input.gap{font:inherit;font-family:var(--serif);font-size:1.05rem;padding:.1rem .4rem;border:0;border-bottom:2px solid var(--brand);background:#f3f5fa;border-radius:6px 6px 0 0;outline:none;text-align:center}
input.gap:focus{background:var(--brand-soft)}
input.gap.right{border-bottom-color:var(--ok);background:var(--ok-soft)}
input.gap.wrong{border-bottom-color:#dc2626;background:#fee2e2}
.quiz textarea{width:100%;padding:.6rem .8rem;border:1px solid var(--line);border-radius:10px;font:inherit;font-family:var(--serif);font-size:1.05rem;margin:.4rem 0 .6rem;resize:vertical}
.quiz textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.result{margin-top:.8rem}
.result .pass{background:var(--ok-soft);color:#14532d;padding:.7rem .9rem;border-radius:10px}
.result .fail{background:var(--accent-soft);color:var(--accent-ink);padding:.7rem .9rem;border-radius:10px}
.result .model{margin-top:.6rem;background:#fbfbfd;border-left:3px solid var(--brand);padding:.6rem .8rem;border-radius:8px;font-family:var(--serif);line-height:1.6}

@media (max-width:560px){
  .app{padding:.8rem 16px 1.5rem}
  .brow{grid-template-columns:minmax(100px,40%) 1fr}
  .ctable .w,.ctable .vi{width:auto}
  .ctable td.nos{display:block;border-top:0;padding-top:0}
  .ctable tr{display:grid;grid-template-columns:1fr 1fr}
  .ctable td{border-top:1px solid var(--line)}
  .ctable tr td:nth-child(2){border-top:1px solid var(--line)}
  .card{padding:.95rem 1rem}
  .essay{font-size:1.04rem}
  .vtable .w{width:50%}
  .navrow .btn{max-width:100%;flex:1}
}

/* print */
@media print{
  .top,.foot,.toolbar,.navrow,.related,.crumbs,.toast,#btn-random{display:none!important}
  body{background:#fff;font-size:12pt}
  .app{max-width:none;padding:0}
  .card{border:0;box-shadow:none;padding:0}
  .task{border:1px solid #999;border-left:4px solid #333}
  .essay{font-size:12.5pt;line-height:1.6}
  .sect{break-inside:avoid}
  mark{background:none;font-weight:700}
  .vtable.hide .vi span{color:#2b3350;background:none}
}