/* Mock test engine styles */
/* intro */
.hero{display:grid; gap:28px; padding:20px 0 8px}
.hero h1{font-size:clamp(2.6rem,9vw,4.6rem); font-weight:800}
.lead{font-size:1.1rem; max-width:34em; margin:16px 0 22px}
.map{background:var(--surface); border:1.5px solid var(--ink); border-radius:12px; padding:16px}
.map-row{display:grid; grid-template-columns:76px 1fr; gap:10px; align-items:center; padding:8px 0}
.map-row + .map-row{border-top:1px dashed var(--line)}
.map-name b{display:block; font-family:var(--display); font-size:1.1rem}
.map-name span{font-size:.8rem; color:var(--muted)}
.map-cells{display:grid; grid-template-columns:repeat(8,1fr); gap:5px}
.cell{aspect-ratio:1; border:1.5px solid var(--ink); border-radius:4px; background:var(--surface)}
.cell.tita{background:var(--hi)}
.map-key{display:flex; flex-wrap:wrap; gap:6px 18px; margin-top:12px; font-size:.85rem; color:var(--muted)}
.map-key span{display:inline-flex; align-items:center; gap:7px}
.map-key i{display:inline-block; width:14px; height:14px}
.rules{margin:26px 0 40px; max-width:46em}
.rules h2{font-size:1.5rem; margin-bottom:12px}
.rules li{margin-bottom:10px}
@media(min-width:900px){
  .hero{grid-template-columns:1.1fr 1fr; align-items:center; padding-top:48px; gap:48px}
  .map-row{grid-template-columns:96px 1fr}
}

/* exam top bar */
.topbar{
  position:sticky; top:0; z-index:30; background:var(--surface); border-bottom:1.5px solid var(--ink);
  display:flex; flex-wrap:wrap; align-items:center; gap:8px 12px; padding:8px 14px;
}
.brand{display:flex; align-items:center; gap:9px; font-family:var(--display); font-weight:800; font-size:1.1rem; margin-right:auto}
.logo{width:32px; height:32px; border-radius:8px; background:var(--ink); color:var(--hi); display:grid; place-items:center; font-size:1.1rem}
.tabs{display:flex; gap:6px; order:3; width:100%}
.tab{flex:1; text-align:center; padding:5px 8px; border-radius:6px; font-size:.85rem; font-weight:600; color:var(--muted); border:1.5px solid var(--line)}
.tab.on{background:var(--hi); color:var(--on-hi); border-color:var(--ink)}
.tab.done{text-decoration:line-through; opacity:.6}
.timer{
  font-family:var(--display); font-weight:800; font-size:1.3rem; font-variant-numeric:tabular-nums;
  background:var(--hi); color:var(--on-hi); padding:5px 12px; border-radius:8px; border:1.5px solid var(--ink);
}
.timer.warn{background:#ff9f1c}
.timer.crit{background:#e5484d; color:#fff; animation:pulse 1s steps(2) infinite}
@keyframes pulse{50%{opacity:.7}}
@media (prefers-reduced-motion:reduce){.timer.crit{animation:none}}
.pal-btn{min-height:40px}
@media(min-width:960px){
  .tabs{order:0; width:auto; flex:0 1 340px; margin-right:auto}
  .brand{margin-right:0}
  .pal-btn{display:none}
}

/* exam layout */
.layout{display:grid; gap:16px; padding-bottom:100px}
@media(min-width:960px){.layout{grid-template-columns:1fr 290px; align-items:start}}
.pane{min-width:0}
.qhead{display:flex; flex-wrap:wrap; align-items:center; gap:8px 12px; margin-bottom:12px}
.qhead h2{font-size:1.25rem; margin-right:auto}
.chip{font-size:.8rem; font-weight:600; padding:3px 10px; border-radius:99px; border:1.5px solid var(--ink); background:var(--surface)}
.chip.hi{background:var(--hi); color:var(--on-hi)}
.qbody{display:grid; gap:14px}
@media(min-width:800px){
  .qbody.has-ctx{grid-template-columns:1fr 1fr; align-items:start}
  .qbody.has-ctx .ctx{position:sticky; top:118px; max-height:calc(100vh - 230px); overflow:auto}
}
.ctx,.qbox{background:var(--surface); border:1px solid var(--line); border-radius:10px; padding:16px 18px}
.ctx h3{font-size:1rem; margin-bottom:10px}
.ctx p{line-height:1.7}
.ctx ul{padding-left:1.2em; margin:0}
.ctx li{margin-bottom:6px}
.qtext{font-size:1.05rem; font-weight:500; margin-bottom:16px}
.opt{
  position:relative; display:flex; gap:12px; align-items:flex-start; padding:11px 14px; margin-bottom:10px;
  border:1.5px solid var(--line); border-radius:10px; background:var(--surface); cursor:pointer;
}
.opt:hover{border-color:var(--ink)}
.opt:focus-within{outline:3px solid var(--focus); outline-offset:2px}
.opt input{position:absolute; opacity:0; inset:0; margin:0; cursor:pointer}
.letter{flex:none; width:28px; height:28px; border-radius:50%; border:1.5px solid var(--ink); display:grid; place-items:center; font-weight:700; font-size:.85rem}
.opt.sel{border-color:var(--ink); background:var(--hi-soft); box-shadow:inset 5px 0 0 var(--hi)}
.opt.sel .letter{background:var(--ink); color:var(--surface)}
.tita-in{
  width:100%; max-width:260px; font:inherit; font-size:1.3rem; font-weight:600; padding:10px 14px;
  border:1.5px solid var(--ink); border-radius:8px; background:var(--surface); color:var(--ink);
}
.hint{font-size:.85rem; color:var(--muted); margin-top:8px}
.tbl-wrap{overflow-x:auto; margin:8px 0}
.tbl{border-collapse:collapse; width:100%; min-width:320px; font-variant-numeric:tabular-nums}
.tbl th,.tbl td{border:1px solid var(--line); padding:7px 12px; text-align:center}
.tbl thead th{background:var(--hi-soft)}
.tbl tbody th{text-align:left}

/* palette */
.palette{
  position:fixed; top:0; right:0; bottom:0; width:min(320px,88vw); z-index:50; background:var(--surface);
  border-left:1.5px solid var(--ink); padding:16px; overflow:auto; transform:translateX(105%); transition:transform .2s ease;
}
body.pal-open .palette{transform:none}
.scrim{display:none; position:fixed; inset:0; background:rgba(8,12,30,.5); z-index:45}
body.pal-open .scrim{display:block}
@media (prefers-reduced-motion:reduce){.palette{transition:none}}
@media(min-width:960px){
  .palette{
    position:sticky; top:74px; width:auto; transform:none; z-index:1; border:1.5px solid var(--ink);
    border-radius:12px; max-height:calc(100vh - 170px);
  }
  .scrim{display:none!important}
  .pal-close{display:none}
}
.pal-top{display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:12px}
.pal-top h2{font-size:1.05rem}
.grid{display:grid; grid-template-columns:repeat(4,1fr); gap:8px; margin:14px 0}
.pn{
  aspect-ratio:1; min-height:44px; border:1.5px solid var(--line); background:var(--surface); color:var(--muted);
  font-weight:700; border-radius:8px; position:relative; padding:0;
}
.pn.unanswered{background:var(--bad-bg); border-color:var(--bad); color:var(--bad)}
.pn.answered{background:var(--ok); border-color:var(--ok); color:var(--on-ok)}
.pn.marked,.pn.marked-ans{background:var(--mark); border-color:var(--mark); color:var(--on-mark); border-radius:50%}
.pn.marked-ans::after{content:""; position:absolute; right:-4px; bottom:-4px; width:13px; height:13px; border-radius:50%; background:var(--ok); border:2px solid var(--surface)}
.pn.cur{box-shadow:0 0 0 3px var(--hi),0 0 0 5px var(--ink)}
.legend{list-style:none; padding:0; margin:0; display:grid; gap:7px; font-size:.85rem}
.legend li{display:flex; align-items:center; gap:9px}
.legend b{margin-left:auto; font-variant-numeric:tabular-nums}
.sw{flex:none; width:20px; height:20px; border-radius:5px; border:1.5px solid var(--line); background:var(--surface); position:relative}
.sw.unanswered{background:var(--bad-bg); border-color:var(--bad)}
.sw.answered{background:var(--ok); border-color:var(--ok)}
.sw.marked{background:var(--mark); border-color:var(--mark); border-radius:50%}
.sw.marked-ans{background:var(--mark); border-color:var(--mark); border-radius:50%}
.sw.marked-ans::after{content:""; position:absolute; right:-4px; bottom:-4px; width:10px; height:10px; border-radius:50%; background:var(--ok); border:2px solid var(--surface)}
.pal-foot{display:grid; gap:8px; margin-top:16px}
.linkbtn{background:none; border:0; color:var(--muted); text-decoration:underline; padding:8px; font-size:.85rem}

/* action bar */
.actions{
  position:fixed; left:0; right:0; bottom:0; z-index:20; background:var(--surface); border-top:1.5px solid var(--ink);
  padding:10px 12px calc(10px + env(safe-area-inset-bottom,0px));
}
.actions-in{max-width:1180px; margin:0 auto; display:flex; gap:8px; flex-wrap:wrap}
.actions .btn{flex:1 1 auto}
.actions .grow{flex:2 1 auto}
@media(min-width:960px){.actions .btn{flex:0 0 auto} .actions .push{margin-left:auto}}

/* modal and toast */
.modal{position:fixed; inset:0; z-index:100; display:grid; place-items:center; padding:16px; background:rgba(8,12,30,.6)}
.modal[hidden]{display:none}
.modal-card{background:var(--surface); border:1.5px solid var(--ink); border-radius:12px; padding:22px; width:min(440px,100%)}
.modal-card h2{font-size:1.4rem; margin-bottom:12px}
.sum{list-style:none; padding:0; margin:0 0 14px; display:grid; grid-template-columns:1fr 1fr; gap:8px}
.sum li{border:1px solid var(--line); border-radius:8px; padding:8px 10px; font-size:.9rem}
.sum b{font-family:var(--display); font-size:1.3rem; display:block}
.row{display:flex; gap:10px; justify-content:flex-end; flex-wrap:wrap}
#toast{
  position:fixed; left:50%; bottom:96px; transform:translateX(-50%); background:var(--ink); color:var(--surface);
  padding:9px 16px; border-radius:8px; font-size:.9rem; z-index:110; opacity:0; pointer-events:none; transition:opacity .2s;
  max-width:90vw; text-align:center;
}
#toast.show{opacity:1}

/* break card */
.card{background:var(--surface); border:1.5px solid var(--ink); border-radius:12px; padding:26px}
.card.center{margin-top:12vh; text-align:center}
.card h2{font-size:1.7rem; margin-bottom:12px}

/* results */
.res-top{display:grid; gap:16px; margin:16px 0}
@media(min-width:800px){.res-top{grid-template-columns:minmax(260px,340px) 1fr}}
.score-card{background:var(--hi); color:var(--on-hi); border:1.5px solid var(--ink); border-radius:14px; padding:22px}
.score-card h1{font-size:1.3rem}
.score-num{font-family:var(--display); font-weight:800; font-size:clamp(4rem,16vw,6.4rem); line-height:1; margin:10px 0 2px}
.score-card .waitlist{display:flex; align-items:center; justify-content:center; text-align:center; text-decoration:none; width:100%; margin-top:16px; background:var(--on-hi); color:var(--hi); border-color:var(--on-hi)}
.score-card .waitlist:hover{filter:brightness(1.25); background:var(--on-hi)}
.stats{display:grid; grid-template-columns:repeat(2,1fr); gap:10px}
@media(min-width:800px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--surface); border:1px solid var(--line); border-radius:10px; padding:12px 14px}
.stat b{display:block; font-family:var(--display); font-size:1.8rem; line-height:1.1}
.stat span{font-size:.85rem; color:var(--muted)}
.sec-table{width:100%; border-collapse:collapse; background:var(--surface); font-variant-numeric:tabular-nums}
.sec-table th,.sec-table td{padding:10px 12px; border-bottom:1px solid var(--line); text-align:left; white-space:nowrap}
.sec-table thead th{font-size:.85rem; color:var(--muted); font-weight:600}
.bar{display:block; width:110px; height:8px; background:var(--line); border-radius:4px; margin-top:5px; overflow:hidden}
.bar i{display:block; height:100%; background:var(--ok)}
h2.sec{font-size:1.5rem; margin:30px 0 12px}
.filters{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:14px}
.filters .btn[aria-pressed="true"]{background:var(--btn); color:var(--on-btn); border-color:var(--btn)}
.rv{background:var(--surface); border:1px solid var(--line); border-left:6px solid var(--line); border-radius:10px; padding:14px 16px; margin-bottom:14px}
.rv.right{border-left-color:var(--ok)}
.rv.wrong{border-left-color:var(--bad)}
.rv-head{display:flex; flex-wrap:wrap; gap:8px; align-items:center; margin-bottom:8px}
.rv-head b{font-family:var(--display); font-size:1.05rem; margin-right:auto}
.badge{font-size:.8rem; font-weight:700; padding:2px 10px; border-radius:99px}
.badge.right{background:var(--ok); color:var(--on-ok)}
.badge.wrong{background:var(--bad); color:#fff}
.badge.skip{background:var(--line); color:var(--ink)}
.rv details{margin:8px 0}
.rv summary{cursor:pointer; font-weight:600; color:var(--muted)}
.rv .ctx{margin-top:8px; background:var(--paper)}
.ro{display:flex; gap:10px; padding:8px 10px; border:1.5px solid var(--line); border-radius:8px; margin-bottom:6px; font-size:.95rem}
.ro.right{border-color:var(--ok); background:var(--ok-bg)}
.ro.wrong{border-color:var(--bad); background:var(--bad-bg)}
.ro small{margin-left:auto; font-weight:700; white-space:nowrap}
.exp{background:var(--hi-soft); border-radius:8px; padding:10px 12px; margin-top:10px; font-size:.95rem}
.ans-line{margin:4px 0}
.res-actions{display:flex; gap:10px; flex-wrap:wrap; margin:22px 0 40px}

/* site integration */
img.logo{background:none; display:block}
.res-actions a.btn{display:inline-flex; align-items:center; text-decoration:none}
body:has(.topbar) .site-header, body:has(.topbar) .site-footer{display:none}