:root{
  --yellow:#FFD100;--accent:#FFD100;--ink:#16161A;--paper:#FFFFFF;--panel:#F2F1EC;--line:#16161A;
  --muted:#55554F;--red:#C8102E;--blue:#005EB8;--green:#00843D;--green-bg:#E3F3EA;--red-bg:#FBE5E8;
  --a0:#C8102E;--a1:#005EB8;--a2:#E0A800;--a3:#00843D;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--ink:#F4F3EE;--paper:#17171A;--panel:#232327;--line:#F4F3EE;--muted:#B7B6AE;--green-bg:#123524;--red-bg:#3D1219}}
:root[data-theme="dark"]{--ink:#F4F3EE;--paper:#17171A;--panel:#232327;--line:#F4F3EE;--muted:#B7B6AE;--green-bg:#123524;--red-bg:#3D1219}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--paper);color:var(--ink);font:17px/1.45 'Barlow','Helvetica Neue',sans-serif;-webkit-font-smoothing:antialiased;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
.wrap{max-width:720px;margin:0 auto;padding:20px 18px 40px}
.wrap.wide{max-width:1200px}
.disp{font-family:'Barlow Condensed','Arial Narrow',sans-serif;font-weight:800;text-transform:uppercase;line-height:.95;letter-spacing:-.005em}
button{font:inherit;color:inherit;cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.hidden{display:none!important}

.hero{background:var(--accent);color:#16161A;margin:-20px -18px 22px;padding:28px 18px 24px}
.hero-inner{max-width:720px;margin:0 auto}
.hero .unit,.unit{display:inline-block;background:#16161A;color:var(--accent);font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:18px;padding:3px 10px;margin-bottom:12px}
.hero h1{margin:0;font-size:clamp(56px,15vw,104px)}
.hero p{margin:10px 0 0;font-size:18px;font-weight:500;max-width:34em}
h2.step{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:24px;margin:24px 0 10px}
.title{font-size:clamp(44px,12vw,72px);margin:6px 0 4px}
.card{background:var(--panel);padding:16px;margin-top:4px}
.lbl{display:block;font-weight:700;font-size:15px;margin:10px 0 4px}
.field{width:100%;min-height:52px;padding:10px 12px;border:2px solid var(--line);background:var(--paper);color:var(--ink);font:600 20px 'Barlow',sans-serif;border-radius:0}
.field.code{font-family:'Barlow Condensed',sans-serif;font-size:30px;letter-spacing:.2em}
.err{color:var(--red);font-weight:600;min-height:1.2em;margin:8px 0 0}
.note{color:var(--muted);font-size:15px;margin:10px 0 0}
.back{background:none;border:0;padding:6px 0;font-weight:700;color:var(--muted)}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}
.pill{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:19px;text-transform:uppercase}
.topic-tag{background:var(--accent);color:#16161A;padding:2px 9px}
.mode{border:2px solid var(--line);padding:0 8px}

.units{display:grid;gap:12px}
.ucard{display:block;width:100%;text-align:left;border:0;padding:0;background:var(--panel)}
.ucard .strip{display:block;height:10px;background:var(--uc)}
.ucard .in{display:block;padding:14px 16px 16px}
.ucard .code{font-family:'Barlow Condensed',sans-serif;font-weight:800;color:var(--muted);font-size:17px;text-transform:uppercase}
.ucard .nm{display:block;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:38px;text-transform:uppercase;line-height:1}
.ucard .sb{display:block;color:var(--muted);font-weight:500;margin-top:4px}
.ucard:hover{outline:2px solid var(--line)}
.links{display:grid;gap:10px;margin-top:22px}

.topics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.chip{display:flex;align-items:center;gap:10px;min-height:56px;padding:10px 12px;background:var(--panel);border:2px solid transparent;text-align:left;font-weight:600}
.chip[aria-pressed="true"]{border-color:var(--line);background:var(--paper)}
.chip .tick{width:22px;height:22px;flex:none;border:2px solid var(--line);display:grid;place-items:center}
.chip[aria-pressed="true"] .tick{background:var(--ink)}
.chip .tick svg{display:none}
.chip[aria-pressed="true"] .tick svg{display:block}
.chip .n{flex:none;padding-left:4px;margin-left:auto;color:var(--muted);font-weight:500;font-size:15px}
.chip.all{grid-column:1/-1}
.lengths,.seg{display:flex;gap:10px;flex-wrap:wrap}
.seg{margin-top:12px}
.len{flex:1;min-height:52px;min-width:70px;background:var(--panel);border:2px solid transparent;font-weight:700}
.len[aria-pressed="true"]{border-color:var(--line);background:var(--paper)}
.go{display:block;width:100%;margin-top:20px;min-height:62px;background:var(--ink);color:var(--paper);border:0;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:28px;text-transform:uppercase}
.go:disabled{opacity:.4;cursor:not-allowed}
.ghost{width:100%;min-height:56px;background:transparent;border:2px solid var(--line);font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;text-transform:uppercase}

.bar{display:flex;align-items:center;justify-content:space-between;gap:10px;font-weight:600}
.score{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:26px}
.progress{height:6px;background:var(--panel);margin:12px 0 4px}
.progress i{display:block;height:100%;background:var(--ink);width:0;transition:width .3s}
.timer{height:14px;margin:10px 0 18px;background:var(--panel);overflow:hidden;position:relative}
.timer i{position:absolute;inset:0;transform-origin:left;background:repeating-linear-gradient(-45deg,#FFD100 0 14px,#16161A 14px 28px)}
.timer.low i{background:repeating-linear-gradient(-45deg,#C8102E 0 14px,#16161A 14px 28px)}
.qtext{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(30px,7vw,42px);line-height:1.05;margin:0 0 16px;text-wrap:balance}
.sign{display:flex;justify-content:center;margin:0 0 18px}
.sign svg{width:132px;height:132px}
.answers{display:grid;gap:10px}
.ans{display:flex;align-items:center;gap:12px;width:100%;min-height:62px;padding:10px 14px 10px 10px;background:var(--paper);border:2px solid var(--line);text-align:left;font-weight:600;font-size:18px}
.ans:hover:not(:disabled){background:var(--panel)}
.ans .k{flex:none;width:38px;height:38px;display:grid;place-items:center;color:#fff;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:21px}
.ans:nth-child(1) .k{background:var(--a0)}.ans:nth-child(2) .k{background:var(--a1)}.ans:nth-child(3) .k{background:var(--a2);color:#16161A}.ans:nth-child(4) .k{background:var(--a3)}
.ans:disabled{cursor:default}
.ans.right{background:var(--green-bg);border-color:var(--green)}
.ans.wrong{background:var(--red-bg);border-color:var(--red)}
.ans.dim{opacity:.45}
.ans.picked{outline:4px solid var(--ink);outline-offset:2px}
.ans .cnt{margin-left:auto;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:24px;padding-left:10px}
.feedback{margin-top:16px;padding:14px 16px;background:var(--panel)}
.verdict{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:28px;text-transform:uppercase}
.verdict.ok{color:var(--green)}.verdict.no{color:var(--red)}
.feedback p{margin:4px 0 0}
.next{margin-top:14px;width:100%;min-height:58px;background:var(--ink);color:var(--paper);border:0;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:24px;text-transform:uppercase}
.streak{color:var(--muted);font-size:15px}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.04)}100%{transform:scale(1)}}
.ans.right{animation:pop .3s ease}

.big{font-size:clamp(80px,22vw,140px);margin:6px 0 0}
.sub{font-size:20px;font-weight:600;margin:6px 0 0}
.rank{display:inline-block;margin:14px 0 8px;background:var(--accent);color:#16161A;padding:4px 12px;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;text-transform:uppercase}
.breakdown{margin-top:22px;display:grid;gap:10px}
.row{display:grid;grid-template-columns:9.5em 1fr 3.2em;align-items:center;gap:10px;font-weight:600}
.row .track{height:14px;background:var(--panel)}
.row .track i{display:block;height:100%;background:var(--ink)}
.row .pc{text-align:right;font-variant-numeric:tabular-nums}
.review{margin-top:26px}
.miss{border-top:2px solid var(--line);padding:12px 0}
.miss .mq{font-weight:700}
.miss .ma{color:var(--green);font-weight:600;margin-top:2px}
.miss .mx{color:var(--muted);font-size:16px;margin-top:2px}
.actions{display:grid;gap:10px;margin-top:22px}

.lb{list-style:none;margin:14px 0 0;padding:0;counter-reset:r}
.lb li{display:grid;grid-template-columns:2.2em 1fr auto auto;align-items:center;gap:10px;padding:10px 4px;border-top:2px solid var(--panel);font-weight:600}
.lb li .pos{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;color:var(--muted)}
.lb li:nth-child(1) .pos{color:var(--ink)}
.lb li .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb li .sc{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:24px;font-variant-numeric:tabular-nums}
.lb li .meta{color:var(--muted);font-size:14px}
.lb li.me{background:var(--accent);color:#16161A}
.lb li.me .pos,.lb li.me .meta{color:#16161A}
.lb .rm{border:0;background:var(--red);color:#fff;width:30px;height:30px;font-weight:800}
.empty{color:var(--muted);padding:14px 0}

/* host screen (projector) */
.host .code-big{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(72px,12vw,150px);letter-spacing:.08em;line-height:1}
.lobby{display:grid;gap:24px;align-items:center}
@media (min-width:860px){.lobby{grid-template-columns:1fr auto}}
.qrbox{background:#fff;padding:12px;justify-self:center}
.qrbox img{display:block;width:240px;height:240px;image-rendering:pixelated}
.url{font-weight:700;font-size:20px;word-break:break-all}
.players{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.players button{background:var(--panel);border:0;padding:8px 12px;font-weight:700;font-size:18px}
.players button:hover{background:var(--red-bg);text-decoration:line-through}
.host .qtext{font-size:clamp(36px,4.6vw,64px)}
.host .ans{font-size:clamp(20px,2.2vw,30px);min-height:80px}
.host .ans .k{width:52px;height:52px;font-size:28px}
.host .timer{height:22px}
.hostbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.hostbar .big-n{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:40px}
.btnrow{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.btnrow .go,.btnrow .ghost{width:auto;flex:1;min-width:200px;margin-top:0}
.podium{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;align-items:end;margin:24px 0}
.podium>div{background:var(--panel);text-align:center;padding:12px 6px}
.podium>div:empty{background:transparent}
.podium .p1{background:var(--accent);color:#16161A;padding-top:40px}
.podium .p2{padding-top:24px}
.podium .pn{font-weight:800;font-size:clamp(18px,2.4vw,30px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.podium .ps{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(24px,3vw,40px)}
.podium .pp{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(40px,6vw,80px);line-height:1}
@media (min-width:560px){.answers{grid-template-columns:1fr 1fr}.topics{grid-template-columns:repeat(3,minmax(0,1fr))}.units{grid-template-columns:1fr 1fr}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* player screens */
.wait{text-align:center;padding:40px 0}
.wait .disp{font-size:clamp(40px,11vw,64px)}
.pulse{width:18px;height:18px;background:var(--accent);margin:24px auto;animation:pl 1.2s infinite}
@keyframes pl{0%,100%{opacity:.25}50%{opacity:1}}
.me-bar{display:flex;justify-content:space-between;font-weight:700;margin-bottom:8px}

/* sign-in screens (phone first) */
.auth{min-height:calc(100svh - 60px);display:flex;flex-direction:column;justify-content:center}
#login.auth{justify-content:flex-start}
.auth-top{background:var(--accent);color:#16161A;margin:-20px -18px 0;padding:36px 22px 70px}
.auth-top h1{margin:0;font-size:clamp(64px,19vw,112px)}
.auth-top p{margin:12px 0 0;font-size:18px;font-weight:500;max-width:22em}
.auth-card{background:var(--paper);margin:-44px 0 0;padding:20px 18px 22px;border:3px solid var(--line);box-shadow:6px 6px 0 var(--line)}
.auth .field{font-size:19px}
.mail-ico{display:flex;justify-content:center;margin-bottom:14px}
.linkbtn{display:flex;align-items:center;justify-content:center;text-decoration:none;text-align:center}
a.go{color:var(--paper)}a.ghost{color:var(--ink)}
.ghost:disabled{opacity:.4;cursor:default}
.acct{display:flex;flex-wrap:wrap;align-items:center;gap:4px 14px;margin:-8px 0 16px;font-size:15px}
.acct span{margin-right:auto}
/* ad slot: small and out of the way */
.adslot{margin:72px auto 0;max-width:340px;text-align:center}
.adlbl{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.adbox{min-height:100px;max-height:110px;overflow:hidden;display:flex;align-items:center;justify-content:center;border:1px dashed var(--muted);color:var(--muted);font-size:13px}
.preview-bar{position:fixed;left:0;right:0;bottom:0;background:#16161A;color:#FFD100;font:600 13px 'Barlow',sans-serif;text-align:center;padding:8px 10px calc(8px + env(safe-area-inset-bottom,0px));z-index:50}
input.field{-webkit-appearance:none;appearance:none}
@media (max-width:420px){.go{font-size:25px}.hero{padding:22px 18px 20px}}
@media (max-width:559px){.ucard .in{padding:10px 14px 12px}.ucard .nm{font-size:31px}.ucard .strip{height:7px}.units{gap:10px}}

/* profile */
.profile{background:#16161A;color:#fff;padding:14px 16px 10px;margin:-8px 0 18px}
.pf-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.pf-name{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:28px;line-height:1;word-break:break-all}
.pf-name small{color:var(--accent);font-size:22px}
.pf-level{color:var(--accent);font-weight:700;font-size:15px;margin-top:4px;text-transform:uppercase;letter-spacing:.04em}
.pf-pts{text-align:right;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:32px;line-height:1}
.pf-pts small{display:block;font-size:13px;color:#B7B6AE;letter-spacing:.06em;text-transform:uppercase}
.pf-bar{height:8px;background:#3a3a40;margin:12px 0 6px}
.pf-bar i{display:block;height:100%;background:var(--accent);width:0;transition:width .6s}
.pf-meta{font-size:14px;color:#D8D7D0}
.pf-actions{display:flex;gap:16px;margin-top:6px}
.pf-actions .back{color:#B7B6AE;font-size:14px}
.guestbar{display:flex;align-items:center;gap:12px;background:var(--panel);padding:12px 14px;margin:-8px 0 18px;font-weight:600;font-size:15px}
.guestbar .go{width:auto;margin:0;min-height:46px;padding:0 18px;font-size:22px;flex:none}
.guest-link{display:block;width:100%;text-align:center;margin-top:18px}
.tagcard{background:#16161A;color:#fff;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:40px;padding:14px 16px;margin:12px 0 18px;word-break:break-all}
.tagcard small{color:var(--accent)}
.namefield{position:relative}
.namefield .hash{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-weight:700}
.savebox .pts-add{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:40px;color:var(--green);line-height:1}
.modebar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:24px}
.modebar h2.step{margin:0}
.modes{margin:0;flex:none}
.modes .len{min-height:42px;min-width:0;padding:0 16px}
/* revision */
.switch{display:flex;align-items:center;gap:10px;margin:16px 0 4px;font-weight:600}
.switch input{width:22px;height:22px;accent-color:#16161A}
.rv-topic{margin-top:26px}
.rv-card{border-top:2px solid var(--line);padding:12px 0}
.rv-q{font-weight:600;color:var(--muted);font-size:15px}
.rv-a{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:24px;line-height:1.1;margin:4px 0}
.rv-x{font-size:16px}
.rv-hide .rv-a,.rv-hide .rv-x{filter:blur(7px);cursor:pointer;user-select:none}
.rv-hide .rv-card.open .rv-a,.rv-hide .rv-card.open .rv-x{filter:none}
.rv-hide .rv-card:not(.open) .rv-a::after{content:''}
.rv-sign svg{width:56px;height:56px;float:right;margin-left:10px}
.onfire .score{color:#FF6A00}
.onfire .timer{box-shadow:0 0 0 2px #FF6A00}

.pf-stats{margin:12px 0 4px;min-height:48px;font-size:22px;background:var(--accent);color:#16161A}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:#16161A;color:#fff;padding:12px 16px;font-weight:600;z-index:70;max-width:calc(100% - 32px);box-shadow:4px 4px 0 var(--accent)}
/* stats page */
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:14px}
@media (min-width:560px){.tiles{grid-template-columns:repeat(3,minmax(0,1fr))}}
.tile{background:var(--panel);padding:12px 14px}
.tile b{display:block;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:32px;line-height:1}
.tile span{font-size:14px;color:var(--muted);font-weight:600}
.tile.warn{background:var(--red-bg)}
.st-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 10px;padding:10px 0;border-top:2px solid var(--panel)}
.st-row .nm{font-weight:700}
.st-row .val{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;text-align:right}
.st-row .track{grid-column:1/-1;height:10px;background:var(--panel);position:relative}
.st-row .track i{display:block;height:100%}
.st-row .track .avg{position:absolute;top:-3px;bottom:-3px;width:2px;background:var(--ink)}
.st-row .sub2{grid-column:1/-1;font-size:13px;color:var(--muted)}
.good{background:var(--green)}.mid{background:#E0A800}.bad{background:var(--red)}
.weak{background:var(--red-bg);padding:12px 14px;margin-top:10px}
.weak .nm{font-weight:800;font-size:18px}
.game-row{display:grid;grid-template-columns:auto 1fr auto;gap:2px 10px;padding:10px 0;border-top:2px solid var(--panel);font-size:15px}
.game-row .gd{color:var(--muted)}
.game-row .gs{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;text-align:right}
.game-row .gm{grid-column:2/-1;color:var(--muted);font-size:13px}
.flag{display:inline-block;background:var(--red);color:#fff;font-size:12px;font-weight:700;padding:1px 6px;margin-left:6px;vertical-align:middle}
.legend{font-size:13px;color:var(--muted);margin-top:6px}

.subj-chip{margin-top:14px;background:#16161A;color:#FFD100;border:0;padding:6px 12px;font-weight:700;font-size:14px}
.subjects{display:grid;gap:10px;margin-top:10px}
.subj{display:flex;align-items:center;gap:14px;width:100%;text-align:left;background:var(--panel);border:3px solid transparent;padding:14px 16px}
.subj[aria-pressed="true"]{border-color:var(--line);background:var(--paper);box-shadow:4px 4px 0 var(--line)}
.subj .radio{width:26px;height:26px;border:3px solid var(--line);border-radius:50%;flex:none;display:grid;place-items:center}
.subj[aria-pressed="true"] .radio::after{content:'';width:12px;height:12px;border-radius:50%;background:var(--ink)}
.subj .snm{display:block;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:30px;text-transform:uppercase;line-height:1}
.subj .sq{display:block;font-weight:700;font-size:15px}
.subj .sd{display:block;color:var(--muted);font-size:14px}

/* blueprint grid on the yellow panels */
.hero,.auth-top{background-image:linear-gradient(rgba(22,22,26,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(22,22,26,.07) 1px,transparent 1px);background-size:22px 22px;background-color:var(--accent)}
/* unit cards with art and progress */
.uc-top{display:flex;gap:12px;align-items:flex-start}
.uc-text{flex:1;min-width:0}
.uc-art{flex:none;width:64px;height:64px;background:var(--uc);display:grid;place-items:center;border:2px solid #16161A}
.uc-art svg{width:52px;height:52px}
.uc-prog{display:grid;gap:6px;margin-top:10px}
.pbar{display:grid;grid-template-columns:5.6em 1fr 3em;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--muted)}
.pbar .tr{height:8px;background:var(--paper);border:1px solid rgba(22,22,26,.15);overflow:hidden}
.pbar .tr i{display:block;height:100%;background:var(--ink);transition:width .5s}
.pbar .tr i.rv{background:#3B82C4}
.pbar .tr i.sp{background:#FF6A00}
.pbar b{text-align:right;color:var(--ink);font-variant-numeric:tabular-nums}
.chip .cmid{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}
.chip .mini{height:5px;background:var(--panel);width:100%;max-width:120px}
.chip .mini i{display:block;height:100%;background:var(--green)}
.chip .cp{font-size:12px;color:var(--muted);font-weight:600}
.revtop{margin:14px 0 4px}
.revtop .pbar{grid-template-columns:auto 1fr 3em;font-size:14px}
.seg .len .lp{display:block;font-size:11px;font-weight:600;color:var(--muted)}
.rv-card.seen .rv-q::before{content:'✓ ';color:var(--green);font-weight:800}
.capnote{background:#FFF1E6;border-left:5px solid #FF6A00;padding:10px 12px;margin-top:10px;font-weight:600;color:#16161A}
.done-art{float:right;width:84px;height:84px;background:var(--accent);display:grid;place-items:center;border:2px solid #16161A;margin-left:12px}
.done-art svg{width:66px;height:66px}

/* log in / sign up */
.auth-top.short{padding:26px 22px 60px}
.auth-top.short h1{font-size:clamp(48px,14vw,80px)}
.auth-h{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:30px;margin:0 0 6px;text-transform:uppercase}
.pwwrap{position:relative}
.pwwrap .field{padding-right:52px}
.eye{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:44px;height:44px;border:0;background:none;color:var(--muted);display:grid;place-items:center}
.eye[aria-pressed="true"]{color:var(--ink)}
.linkish{background:none;border:0;padding:6px 0;font-weight:700;color:#2B6CB0;text-decoration:underline;font-size:15px}
.auth-card .go{margin-top:12px}
.or{display:flex;align-items:center;gap:10px;color:var(--muted);font-weight:600;margin:18px 0 12px}
.or::before,.or::after{content:'';flex:1;height:1px;background:rgba(22,22,26,.2)}
.socials{display:grid;gap:10px}
.social{display:flex;align-items:center;justify-content:center;gap:10px;min-height:52px;background:var(--panel);border:2px solid transparent;color:var(--ink);font:700 16px 'Barlow',sans-serif;text-decoration:none;width:100%}
.social:hover{border-color:var(--line)}
.swap{text-align:center;margin:18px 0 0;font-weight:600}
.opt{font-weight:500;color:var(--muted)}

/* keep the original look: social buttons match the outlined buttons */
.social{background:transparent;border:2px solid var(--line);min-height:56px;font:800 20px 'Barlow Condensed',sans-serif;text-transform:uppercase;letter-spacing:.01em}
.social:hover{background:var(--panel)}
.linkish{color:var(--ink)}
.swap .linkish{font-size:inherit}

/* ---------- hot streak ---------- */
.hot{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;z-index:60;overflow:hidden}
.hot-glow{position:absolute;inset:-20%;background:radial-gradient(circle at 50% 50%,rgba(255,170,0,.55),rgba(255,77,0,.25) 35%,rgba(255,77,0,0) 65%);animation:hglow 1.9s ease-out both}
.hot-ring{position:absolute;left:50%;top:50%;width:160px;height:160px;margin:-80px 0 0 -80px;border-radius:50%;border:10px solid #FFD100;animation:hring .7s ease-out both}
.hot-ring.r2{border-color:#FF6A00;animation-delay:.12s}
.hot-in{position:relative;text-align:center;animation:hin 1.9s cubic-bezier(.2,1.5,.4,1) both}
.fire{position:relative;width:130px;height:150px;margin:0 auto -18px;animation:hbob .6s ease-in-out infinite alternate}
.fire svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.fire .f{transform-origin:50% 100%;transform-box:fill-box}
.fire .f1{animation:fl1 .52s ease-in-out infinite alternate}
.fire .f2{animation:fl2 .38s ease-in-out infinite alternate}
.fire .f3{animation:fl3 .3s ease-in-out infinite alternate}
.fire .f4{animation:fl4 .22s ease-in-out infinite alternate}
.fire .eye{animation:blink 1.9s steps(1) both}
.hot-t{position:relative;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(56px,17vw,112px);line-height:.9;text-transform:uppercase;white-space:nowrap;letter-spacing:.01em;filter:drop-shadow(4px 5px 0 #16161A)}
.hot-t span{display:inline-block;background:linear-gradient(180deg,#FFF6A0 0%,#FFD100 30%,#FF8A00 62%,#FF3B00 100%);background-size:100% 220%;-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-stroke:2.5px #16161A;
  animation:hdrop .55s cubic-bezier(.25,1.8,.5,1) both,hshine .9s linear .5s infinite;animation-delay:calc(var(--i) * 45ms + 80ms),calc(var(--i) * 45ms + 600ms)}
.hot-t span.sp{width:.25em}
.hot-n{display:inline-flex;align-items:center;gap:8px;margin-top:10px;background:#16161A;color:#fff;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:26px;padding:4px 14px;text-transform:uppercase;animation:hslide .45s cubic-bezier(.2,1.6,.4,1) .45s both}
.hot-n b{color:#FFD100;font-size:34px;line-height:1}
.hot-n .x3{display:inline-block;margin-left:4px;background:#FF4D00;color:#fff;padding:0 8px;transform-origin:50% 50%;animation:hpunch .5s ease-in-out .8s 2}
.ember{position:absolute;left:50%;top:50%;width:var(--s);height:var(--s);border-radius:50%;background:var(--c);box-shadow:0 0 8px var(--c);animation:hember var(--d) ease-out var(--dl) both}
.shake{animation:hshake .4s cubic-bezier(.36,.07,.19,.97) both}
@keyframes hin{0%{transform:scale(.2) rotate(-10deg);opacity:0}14%{transform:scale(1.12) rotate(3deg);opacity:1}24%{transform:scale(.96) rotate(-1deg)}32%{transform:scale(1) rotate(0)}82%{transform:scale(1);opacity:1}100%{transform:scale(1.08) translateY(-60px);opacity:0}}
@keyframes hglow{0%{opacity:0;transform:scale(.6)}15%{opacity:1;transform:scale(1)}75%{opacity:.8}100%{opacity:0}}
@keyframes hring{0%{transform:scale(.2);opacity:1}100%{transform:scale(3.2);opacity:0;border-width:2px}}
@keyframes hbob{from{transform:translateY(0) scale(1)}to{transform:translateY(-6px) scale(1.04)}}
@keyframes fl1{0%{transform:scale(1,1) skewX(-4deg)}50%{transform:scale(1.05,.94) skewX(2deg)}100%{transform:scale(.96,1.08) skewX(5deg)}}
@keyframes fl2{0%{transform:scale(1,1) skewX(5deg) translateX(-2px)}100%{transform:scale(.93,1.12) skewX(-5deg) translateX(2px)}}
@keyframes fl3{0%{transform:scale(1,.92) skewX(-6deg)}100%{transform:scale(.9,1.15) skewX(6deg)}}
@keyframes fl4{0%{transform:scale(1,.85)}100%{transform:scale(.85,1.2) skewX(-4deg)}}
@keyframes blink{0%,46%,52%{transform:scaleY(1)}48%{transform:scaleY(.1)}}
@keyframes hdrop{0%{transform:translateY(-90px) rotate(var(--r)) scale(1.8);opacity:0}60%{transform:translateY(8px) rotate(0) scale(.95);opacity:1}100%{transform:translateY(0) rotate(0) scale(1);opacity:1}}
@keyframes hshine{from{background-position:0 0}to{background-position:0 220%}}
@keyframes hslide{from{transform:translateY(30px) scale(.6);opacity:0}to{transform:none;opacity:1}}
@keyframes hpunch{0%,100%{transform:scale(1)}40%{transform:scale(1.15) rotate(-3deg)}}
@keyframes hember{0%{transform:translate(-50%,-50%) translate(0,20px) scale(1);opacity:0}10%{opacity:1}100%{transform:translate(-50%,-50%) translate(var(--x),var(--y)) scale(.2);opacity:0}}
@keyframes hshake{10%,90%{transform:translate(-2px,1px)}20%,80%{transform:translate(4px,-2px)}30%,50%,70%{transform:translate(-6px,2px) rotate(-.5deg)}40%,60%{transform:translate(6px,-1px) rotate(.5deg)}}
@media (prefers-reduced-motion:reduce){.hot-in{animation:hfade 1.9s both!important}.hot *{animation-duration:0s!important}.hot-in *{animation:none!important}.ember,.hot-ring{display:none}@keyframes hfade{0%,85%{opacity:1}100%{opacity:0}}}

/* ================= motion ================= */
@keyframes rise{from{opacity:0;transform:translateY(18px) scale(.97)}to{opacity:1;transform:none}}
@keyframes pageIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes letterDrop{0%{opacity:0;transform:translateY(-.6em) rotate(var(--r,0deg)) scale(1.3)}60%{opacity:1;transform:translateY(.06em) scale(.97)}100%{opacity:1;transform:none}}
@keyframes stamp{0%{opacity:0;transform:scale(2.4) rotate(-12deg)}60%{opacity:1;transform:scale(.92) rotate(-3deg)}100%{transform:scale(1) rotate(-2deg)}}
@keyframes popIn{0%{opacity:0;transform:scale(.4)}70%{transform:scale(1.12)}100%{opacity:1;transform:scale(1)}}
@keyframes growx{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes shakeX{10%,90%{transform:translateX(-2px)}20%,80%{transform:translateX(4px)}30%,50%,70%{transform:translateX(-8px)}40%,60%{transform:translateX(8px)}}
@keyframes tpulse{from{opacity:1}to{opacity:.45}}
@keyframes floatUp{0%{opacity:0;transform:translate(-50%,0) scale(.6)}15%{opacity:1;transform:translate(-50%,-10px) scale(1.15)}100%{opacity:0;transform:translate(-50%,-90px) scale(1)}}
@keyframes cf{0%{transform:translate(-50%,-50%) rotate(0);opacity:1}45%{transform:translate(calc(-50% + var(--x) * .6),calc(-50% + var(--y1))) rotate(calc(var(--r) * .5));opacity:1}100%{transform:translate(calc(-50% + var(--x)),calc(-50% + var(--y2))) rotate(var(--r));opacity:0}}
@keyframes rise-col{from{transform:translateY(100%);opacity:0}to{transform:none;opacity:1}}
@keyframes wiggle{0%,100%{transform:rotate(0)}25%{transform:rotate(-8deg) scale(1.08)}75%{transform:rotate(6deg) scale(1.08)}}
@keyframes glowPulse{0%,100%{box-shadow:0 0 0 0 rgba(255,209,0,.0)}50%{box-shadow:0 0 0 6px rgba(255,209,0,.55)}}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,30px)}to{opacity:1;transform:translate(-50%,0)}}
@keyframes qIn{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}
@keyframes bump{0%{transform:scale(1)}40%{transform:scale(1.25)}100%{transform:scale(1)}}

section.enter{animation:pageIn .35s ease-out both}
.pop-list>*{animation:rise .45s cubic-bezier(.2,1.3,.4,1) both}
.pop-list>:nth-child(1){animation-delay:0ms}.pop-list>:nth-child(2){animation-delay:45ms}.pop-list>:nth-child(3){animation-delay:90ms}.pop-list>:nth-child(4){animation-delay:135ms}.pop-list>:nth-child(5){animation-delay:180ms}.pop-list>:nth-child(6){animation-delay:225ms}.pop-list>:nth-child(7){animation-delay:270ms}.pop-list>:nth-child(8){animation-delay:315ms}.pop-list>:nth-child(9){animation-delay:360ms}.pop-list>:nth-child(10){animation-delay:405ms}.pop-list>:nth-child(11){animation-delay:450ms}.pop-list>:nth-child(12){animation-delay:495ms}.pop-list>:nth-child(13){animation-delay:540ms}.pop-list>:nth-child(14){animation-delay:585ms}.pop-list>:nth-child(15){animation-delay:630ms}
.units,.answers,.topics,.lb,.tiles,.links,.socials,.subjects,.breakdown,.players,.btnrow{}
.disp .ltr{display:inline-block;animation:letterDrop .55s cubic-bezier(.25,1.6,.5,1) both;animation-delay:calc(var(--i) * 40ms + 60ms)}
.rank{animation:stamp .5s cubic-bezier(.3,1.5,.5,1) .9s both}
.pts-add{animation:popIn .5s cubic-bezier(.3,1.6,.5,1) both}
.row .track i,.pbar .tr i,.st-row .track i,.chip .mini i,.pf-bar i{transform-origin:left;animation:growx .9s cubic-bezier(.2,.8,.2,1) both}
.ans.wrong{animation:shakeX .45s cubic-bezier(.36,.07,.19,.97) both}
.ans.right{animation:bump .35s ease-out}
.timer.low i{animation:tpulse .35s ease-in-out infinite alternate}
.qtext.qin{animation:qIn .35s cubic-bezier(.2,1,.3,1) both}
.toast:not(.hidden){animation:toastIn .35s cubic-bezier(.2,1.4,.4,1) both}
.floatpts{position:fixed;z-index:66;pointer-events:none;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:34px;color:var(--green);-webkit-text-stroke:1.5px #fff;paint-order:stroke;text-shadow:2px 2px 0 rgba(0,0,0,.15);animation:floatUp 1.1s ease-out both}
.cf{position:fixed;z-index:65;pointer-events:none;width:var(--w);height:var(--h);background:var(--c);border-radius:2px;animation:cf var(--d) cubic-bezier(.15,.7,.35,1) both}
/* press + hover feel */
.go,.ghost,.len,.chip,.ans:not(:disabled),.ucard,.social,.subj,.next,.guestbar .go{transition:transform .12s ease,box-shadow .15s ease,background .15s}
.go:active:not(:disabled),.ghost:active,.len:active,.chip:active,.ans:active:not(:disabled),.ucard:active,.social:active,.subj:active,.next:active{transform:scale(.97)}
@media (hover:hover){.ucard:hover{transform:translate(-3px,-3px);box-shadow:5px 5px 0 var(--line);outline:2px solid var(--line)}.ucard:hover .uc-art svg{animation:wiggle .6s ease-in-out}.go:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 0 rgba(0,0,0,.25)}.ans:hover:not(:disabled){transform:translateX(4px)}}
.onfire .streak#streak{color:#FF6A00;font-weight:800}
.score.bump{animation:bump .35s ease-out}
.players button.new{animation:popIn .4s cubic-bezier(.3,1.6,.5,1) both}
.podium>div{animation:rise-col .7s cubic-bezier(.2,1.2,.4,1) both}
.podium .p3{animation-delay:.1s}.podium .p2{animation-delay:.45s}.podium .p1{animation-delay:.9s}
.podium .p1 .pp{animation:bump .6s ease-out 1.5s 2}
.lb li.me{animation:glowPulse 1.2s ease-in-out .6s 3}
.code-big{animation:popIn .6s cubic-bezier(.3,1.6,.5,1) both}
.profile .pf-pts span{display:inline-block}
.verdict{animation:popIn .4s cubic-bezier(.3,1.6,.5,1) both}
.feedback:not(.hidden){animation:rise .35s ease-out both}
.wait .disp{animation:popIn .5s cubic-bezier(.3,1.6,.5,1) both}
.tagcard{animation:stamp .6s cubic-bezier(.3,1.5,.5,1) .15s both}
.mail-ico svg{animation:bump 1.4s ease-in-out .3s infinite}
@media (prefers-reduced-motion:reduce){section.enter,.pop-list>*,.disp .ltr,.rank,.pts-add,.ans.wrong,.ans.right,.podium>div,.cf,.floatpts{animation:none!important}.row .track i,.pbar .tr i,.st-row .track i,.chip .mini i,.pf-bar i{animation:none!important}}

/* visual learning diagrams */
.vis{margin:12px 0 0;background:#fff;border:2px solid #16161A;padding:8px 8px 6px;max-width:460px;animation:rise .45s cubic-bezier(.2,1.3,.4,1) .15s both}
.vis svg{display:block;width:100%;height:auto}
.vis figcaption{font-size:13px;font-weight:700;color:#16161A;margin-top:4px;line-height:1.3}
.host .vis{max-width:520px}
.miss .vis{max-width:300px}
.rv-card .vis{max-width:380px}
.rv-hide .rv-card:not(.open) .vis{filter:blur(8px)}

/* extinguisher pictures */
.sign.ext svg{width:auto;height:170px;animation:extIn .6s cubic-bezier(.2,1.5,.4,1) both;transform-origin:50% 100%}
@keyframes extIn{0%{opacity:0;transform:translateY(20px) rotate(-6deg) scale(.8)}60%{opacity:1;transform:rotate(3deg) scale(1.05)}100%{transform:none}}
.ans .xi{flex:none;width:40px;height:64px;display:grid;place-items:center}
.ans .xi svg{width:40px;height:auto}
.host .ans .xi{width:40px;height:66px}.host .ans .xi svg{width:40px}
.rv-sign.ext svg{width:auto;height:90px}

/* roomy topic tabs (revision + leaderboards) */
#revTopics,#boardUnits{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
#revTopics .len,#boardUnits .len{min-height:72px;padding:10px 12px;line-height:1.2;text-align:center;overflow-wrap:anywhere;hyphens:auto;min-width:0}
#revTopics .len .lp{margin-top:4px}
@media (max-width:420px){#revTopics,#boardUnits{grid-template-columns:repeat(2,minmax(0,1fr))}}
.host .tag-row .topic-tag{font-size:22px}

/* ---------- profile: stats + tree buttons ---------- */
.pf-two{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:12px 0 4px}
.pf-two .go{margin:0;min-height:48px;font-size:20px;line-height:1}
.pf-tree{background:#fff;color:#16161A}
.pts-add.bonus{color:#B8860B;font-size:30px;margin-top:4px}

/* ---------- progress tree ---------- */
.tr-sum{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0 10px}
.tr-sum div{background:#16161A;color:#fff;padding:12px 14px}
.tr-sum b{display:block;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:36px;line-height:1;color:var(--accent)}
.tr-sum small{font-size:13px;letter-spacing:.05em;text-transform:uppercase;color:#D8D7D0}
.tr-crown{margin-top:10px}
.tr-goal{display:grid;grid-template-columns:32px 1fr auto;align-items:center;gap:10px;padding:10px 12px;border:2px solid var(--line);margin-bottom:8px;font-weight:600;opacity:.75}
.tr-goal .tg-ic{font-size:24px;line-height:1;text-align:center}
.tr-goal .tg-b{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px}
.tr-goal.on{background:var(--accent);color:#16161A;border-color:#16161A;opacity:1}
.tr-crown .ghost{margin-top:4px}
.tr-trunk{position:relative;margin-top:10px}
.tr-branch{border-left:8px solid var(--uc);background:var(--panel);padding:12px 14px 30px;margin-bottom:12px}
.tr-head{display:grid;grid-template-columns:44px 1fr auto;gap:10px;align-items:center;width:100%;background:none;border:0;padding:0;text-align:left}
.tr-art{width:44px;height:44px;background:var(--uc);display:grid;place-items:center}
.tr-nm b{display:block;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:21px;line-height:1.05}
.tr-nm small{color:var(--muted);font-size:14px}
.tr-pc{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:28px}
.tr-line{position:relative;height:10px;background:var(--paper);border:2px solid var(--line);margin:30px 8px 0 4px}
.tr-line>i{position:absolute;left:0;top:0;bottom:0;background:var(--uc);transition:width 1s cubic-bezier(.2,.8,.2,1)}
.tr-node{position:absolute;top:50%;width:40px;height:40px;transform:translate(-50%,-62%)}
.tr-node svg{width:40px;height:40px;display:block}
.tr-node.on svg{animation:medalIn .6s cubic-bezier(.2,1.6,.4,1) both;filter:drop-shadow(0 2px 0 rgba(0,0,0,.25))}
.tr-node .tn-l,.tr-node .tn-b{position:absolute;left:50%;transform:translateX(-50%);white-space:nowrap;font-size:12px;font-weight:700}
.tr-node .tn-l{top:-15px;color:var(--muted)}
.tr-node .tn-b{bottom:-16px;font-family:'Barlow Condensed',sans-serif;font-size:15px}
.tr-node.on .tn-b{color:var(--green)}
@keyframes medalIn{from{transform:scale(.2) rotate(-40deg);opacity:0}to{transform:none;opacity:1}}

/* ---------- exam ---------- */
.examcard{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;width:100%;margin-top:18px;padding:16px;background:#16161A;color:#fff;border:0;text-align:left;box-shadow:6px 6px 0 var(--accent);transition:transform .15s}
.examcard:hover{transform:translate(-2px,-2px)}
.ec-badge{background:var(--accent);color:#16161A;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:18px;padding:6px 8px;writing-mode:vertical-rl;transform:rotate(180deg)}
.ec-t b{display:block;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:28px;line-height:1;text-transform:uppercase}
.ec-t small{display:block;color:#D8D7D0;font-size:14px;margin-top:4px}
.ec-go{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;color:var(--accent);text-transform:uppercase}
.ex-top{display:flex;justify-content:space-between;align-items:center}
.ex-clock{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:26px;font-variant-numeric:tabular-nums;background:#16161A;color:var(--accent);padding:2px 10px}
.ex-head{display:flex;justify-content:space-between;font-weight:700;margin:12px 0 6px}
.ex-head #exDone{color:var(--muted)}
.ex-bar{height:8px;background:var(--panel);margin-bottom:14px}
.ex-bar i{display:block;height:100%;background:var(--accent);width:0;transition:width .3s}
#exam .qtext{margin:14px 0}
#exam .answers{display:grid;gap:10px}
#exam .ans.picked{background:var(--accent);color:#16161A;border-color:#16161A;outline:0}
.ex-nav{display:grid;grid-template-columns:1fr auto 1fr;gap:8px;margin-top:16px}
.ex-nav .go,.ex-nav .ghost{margin:0;min-height:54px;font-size:21px}
.ex-nav #exFlag{width:auto;padding:0 14px}
.ex-nav #exFlag.flagged{background:#FF6A00;color:#fff;border-color:#FF6A00}
.ex-nav button:disabled{opacity:.35}
.ex-grid-wrap{margin-top:18px;border:2px solid var(--line);padding:10px 12px}
.ex-grid-wrap summary{font-weight:700;cursor:pointer}
.ex-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:6px;margin-top:10px}
.ex-grid button{min-height:40px;border:2px solid var(--line);background:var(--paper);font-weight:700;font-size:14px;padding:0}
.ex-grid button.a{background:var(--ink);color:var(--paper)}
.ex-grid button.f{box-shadow:inset 0 -5px 0 #FF6A00}
.ex-grid button.cur{outline:3px solid var(--accent);outline-offset:1px}
.lg{display:inline-block;width:12px;height:12px;border:2px solid var(--line);vertical-align:-1px;margin-left:8px}.lg.lg-a{background:var(--ink)}.lg.lg-f{background:#FF6A00;border-color:#FF6A00}
.ex-finish{background:var(--accent);color:#16161A}
.ex-hero{margin:-20px -18px 18px;padding:26px 18px;background:#16161A;color:#fff;text-align:center}
.ex-hero .unit{background:var(--accent);color:#16161A}
.ex-pct{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(90px,28vw,150px);line-height:.9}
.ex-hero .stamp{display:inline-block;margin-top:8px;padding:4px 16px;border:4px solid currentColor;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:32px;text-transform:uppercase;transform:rotate(-4deg);animation:stamp .5s 1.3s cubic-bezier(.2,1.6,.4,1) both}
.ex-hero.pass .stamp{color:#3DDC84}.ex-hero.fail .stamp{color:#FF8A80}
.ex-hero p{color:#D8D7D0;margin:12px 0 0}
@keyframes stamp{from{transform:scale(3) rotate(-4deg);opacity:0}to{transform:scale(1) rotate(-4deg);opacity:1}}
.ex-missed{margin-top:18px;border:2px solid var(--line);padding:10px 12px}
.ex-missed summary{font-weight:700;cursor:pointer}
.miss .myans{color:var(--red);font-weight:600;margin-top:2px}
#exResult .row{grid-template-columns:minmax(0,11em) 1fr 3.2em}
#exResult .row span:first-child{font-size:15px;line-height:1.15}

/* ---------- footer, help, privacy ---------- */
.foot{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin-top:26px;color:var(--muted);font-size:14px}
.foot button,.linkish{background:none;border:0;padding:2px;color:var(--muted);text-decoration:underline;font-weight:600;font-size:inherit}
.linkish{color:inherit}
.faq{display:grid;gap:8px;margin-top:14px}
.faq details{border:2px solid var(--line);background:var(--paper)}
.faq summary{padding:14px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:10px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:24px;line-height:.8}
.faq details[open] summary{background:var(--accent);color:#16161A}
.faq details[open] summary::after{content:'−'}
.faq ul,.legal ul{margin:10px 0;padding:0 16px 0 34px}
.faq li,.legal li{margin:6px 0}
.contact-card{margin-top:18px}
.contact-card p{margin:6px 0}
.mail-btn{text-align:center;text-decoration:none;line-height:62px;margin-top:14px}
.mail-addr{text-align:center;user-select:all}
.add-subj{background:#16161A;color:#fff}
.add-subj h2{color:var(--accent)}
.add-subj .go{background:var(--accent);color:#16161A}
.legal h3{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:24px;margin:22px 0 6px}
.legal a{color:inherit}
/* cookie banner */
.consent{position:fixed;left:0;right:0;bottom:0;z-index:80;padding:0 12px calc(12px + env(safe-area-inset-bottom,0px))}
.consent-in{max-width:620px;margin:0 auto;background:#16161A;color:#fff;padding:16px 16px 14px;box-shadow:6px 6px 0 var(--accent);border:2px solid var(--accent)}
.consent h2{margin:0 0 6px;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:26px;text-transform:uppercase;color:var(--accent)}
.consent p{margin:0;font-size:15px;color:#E6E5DF}
.consent .linkish{color:#fff}
.consent-btns{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;margin-top:12px;align-items:center}
.consent-btns .go,.consent-btns .ghost{margin:0;min-height:48px;font-size:20px}
.consent-btns .go{background:var(--accent);color:#16161A}
.consent-btns .ghost{color:#fff;border-color:#fff}
.consent-btns .linkish{color:#fff;padding:0 6px}
.consent-opts{display:grid;gap:8px;margin-top:12px}
.copt{display:flex;gap:10px;align-items:flex-start;background:#26262b;padding:10px}
.copt input{width:22px;height:22px;accent-color:#FFD100;flex:none;margin-top:2px}
.copt b{display:block}.copt small{color:#B7B6AE}
.consent.enter .consent-in{animation:slideUp .45s cubic-bezier(.2,1,.3,1) both}
@keyframes slideUp{from{transform:translateY(120%)}to{transform:none}}
@media (max-width:420px){.consent-btns{grid-template-columns:1fr 1fr}.consent-btns .linkish{grid-column:1/-1;padding:6px}.pf-two .go{font-size:18px}}
@media (prefers-reduced-motion:reduce){.consent.enter .consent-in,.tr-node.on svg,.ex-hero .stamp{animation:none}.tr-line>i{transition:none}}
.row .track i.good{background:var(--green)}.row .track i.mid{background:#E0A800}.row .track i.bad{background:var(--red)}

/* ---------- class game v2: lobby, read, reveal, scoreboard, race, report ---------- */
.hb-r{display:flex;align-items:center;gap:10px}
.lockbtn{display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 12px;border:2px solid var(--line);background:var(--paper);font-weight:800}
.lockbtn.on{background:#16161A;color:var(--accent);border-color:#16161A}
.lob-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;flex-wrap:wrap}
.pchips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.pchip{display:inline-flex;align-items:center;gap:6px;background:var(--panel);padding:8px 8px 8px 14px;font-weight:700;font-size:18px;min-height:44px}
.pchip.me{background:var(--accent);color:#16161A}
.pchip.new{animation:popIn .45s cubic-bezier(.3,1.6,.5,1) both}
.host .pchip{font-size:clamp(18px,1.8vw,24px)}
.pchip .kx{display:grid;place-items:center;width:30px;height:30px;border:0;background:transparent;color:var(--muted);border-radius:50%}
.pchip .kx:hover,.pchip .kx:focus-visible{background:var(--red);color:#fff}
#player .pchip{padding-right:14px;font-size:16px;min-height:38px}
.pdrawer{margin-top:18px;border:2px solid var(--line);padding:10px 12px}
.pdrawer summary{font-weight:700;cursor:pointer}
.readstage{text-align:center;padding:4vh 0 2vh}
.readstage .qtext.big{font-size:clamp(40px,5.4vw,78px);line-height:1.08;max-width:22ch;margin:0 auto 20px}
.readstage.phone .qtext{font-size:clamp(26px,7vw,36px);line-height:1.15}
.readstage .sign{margin:0 auto 16px}
.readbar{height:14px;background:var(--panel);max-width:640px;margin:10px auto 0;overflow:hidden}
.readbar i{display:block;height:100%;background:var(--accent);transform-origin:left;will-change:transform}
.readlbl{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(24px,3vw,40px);margin:12px 0 0}
.qrow{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:start}
.bigtime{display:grid;place-items:center;width:clamp(64px,8vw,110px);aspect-ratio:1;border-radius:50%;background:#16161A;color:var(--accent);font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(32px,4.4vw,60px);flex:none}
.bigtime.low{background:var(--red);color:#fff;animation:pl .5s infinite alternate}
.bigtime.sm{width:48px;font-size:26px}
.qtext.small{font-size:22px;line-height:1.2}
.rbars{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;align-items:end;height:clamp(120px,22vh,220px);margin:14px 0}
.rb{height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:stretch;text-align:center;opacity:.55}
.rb.ok{opacity:1}
.rb b{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(24px,3vw,40px)}
.rb>i{display:block;height:var(--h);min-height:6px;animation:growUp .7s var(--d) cubic-bezier(.2,1.2,.4,1) both;transform-origin:bottom}
.rb .k{display:block;color:#fff;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;padding:4px}
.a0{background:var(--a0)}.a1{background:var(--a1)}.a2{background:var(--a2);color:#16161A!important}.a3{background:var(--a3)}
@keyframes growUp{from{transform:scaleY(0)}to{transform:none}}
.rnames{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.rn{display:inline-flex;flex-direction:column;background:var(--green-bg);border:2px solid var(--green);padding:6px 10px;animation:popIn .4s calc(var(--i) * 40ms) cubic-bezier(.3,1.6,.5,1) both}
.rn.first{background:var(--accent);border-color:#16161A;color:#16161A}
.rn b{font-size:18px}.rn small{font-size:13px;opacity:.8}
.title.center{text-align:center}
.sboard{list-style:none;margin:16px 0;padding:0;display:grid;gap:10px}
.sboard li{display:grid;grid-template-columns:44px 1fr auto 52px;align-items:center;gap:10px;animation:slideIn .5s calc(var(--i) * 120ms) cubic-bezier(.2,1,.3,1) both}
.sboard .pos{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:30px;text-align:center}
.sboard .bar-in{position:relative;display:flex;justify-content:space-between;align-items:center;gap:8px;min-height:52px;padding:0 12px;background:var(--panel);overflow:hidden}
.sboard .bar-in::before{content:'';position:absolute;inset:0 auto 0 0;width:var(--w);background:var(--accent);opacity:.35;animation:barW 1s calc(var(--i) * 120ms + .2s) cubic-bezier(.2,1,.3,1) both}
.sboard li:first-child .bar-in::before{opacity:.9}
.sboard .nm,.sboard .gain{position:relative;font-weight:800;font-size:19px}
.sboard .gain{color:var(--green);font-size:16px}
.sboard .sc{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:28px;text-align:right}
.sboard .mv{font-weight:800;font-size:15px}.sboard .mv.up{color:var(--green)}.sboard .mv.down{color:var(--red)}
.sboard.big .nm{font-size:clamp(20px,2.4vw,34px)}.sboard.big .sc{font-size:clamp(28px,3vw,46px)}.sboard.big .bar-in{min-height:clamp(52px,7vh,76px)}.sboard.big .pos{font-size:clamp(30px,3vw,48px)}
.fire{font-size:.7em}
@keyframes slideIn{from{transform:translateX(-40px);opacity:0}to{transform:none;opacity:1}}
@keyframes barW{from{width:0}}
.pverdict{text-align:center;padding:26px 0 8px}
.pverdict .disp{font-size:clamp(48px,14vw,72px)}
.pverdict.ok .disp{color:var(--green)}.pverdict.no .disp{color:var(--red)}
.pgain{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:56px;line-height:1;animation:popIn .5s .15s cubic-bezier(.3,1.6,.5,1) both}
.wait.tight{padding:16px 0 0}
.mvnote{font-weight:800;margin:4px 0 0}.mvnote.up{color:var(--green)}.mvnote.down{color:var(--red)}
/* race */
.race{position:relative;background:#1F6B35;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.07) 0 40px,transparent 40px 80px);padding:14px 16px 16px;margin:14px 0;border:3px solid #16161A;overflow:hidden}
.race-q{color:#fff;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(20px,2.4vw,30px);margin-bottom:8px;text-transform:uppercase}
.lane{display:grid;grid-template-columns:minmax(80px,16%) 1fr;align-items:center;gap:10px;border-top:2px dashed rgba(255,255,255,.35);min-height:clamp(40px,6vh,58px)}
.lname{color:#fff;font-weight:800;font-size:clamp(14px,1.6vw,20px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lane .track{position:relative;height:100%;min-height:40px}
.runner{position:absolute;top:50%;left:0;transform:translateY(-50%);display:flex;align-items:center;gap:6px;transition-property:left;transition-timing-function:cubic-bezier(.3,.7,.3,1)}
.runner i{display:block;width:clamp(30px,3.6vw,46px);aspect-ratio:1;border-radius:50%;background:var(--c);border:3px solid #16161A;box-shadow:0 3px 0 rgba(0,0,0,.35);animation:gallop .35s infinite alternate}
.runner b{color:#fff;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(14px,1.5vw,20px);text-shadow:0 1px 0 #000}
.lane.lead .runner i{box-shadow:0 0 0 4px #fff,0 3px 0 rgba(0,0,0,.35)}
.lane.lead .lname::before{content:'★ ';color:var(--accent)}
.finish-line{position:absolute;top:0;bottom:0;right:10px;width:12px;background:repeating-linear-gradient(0deg,#fff 0 12px,#16161A 12px 24px)}
@keyframes gallop{from{transform:translateY(-2px) rotate(-6deg)}to{transform:translateY(2px) rotate(6deg)}}
/* podium */
.podium2{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;align-items:end;margin:20px 0;min-height:clamp(180px,30vh,300px)}
.podium2 .pd{background:transparent;text-align:center;padding:12px 6px;visibility:hidden}
.podium2 .pd.in{visibility:visible;background:var(--panel);animation:rise-col .8s cubic-bezier(.2,1.2,.4,1) both}
.podium2 .pd.p1.in{background:var(--accent);color:#16161A;padding-top:48px}
.podium2 .pd.p2.in{padding-top:30px;background:#DADFE4;color:#16161A}
.podium2 .pd.p3.in{background:#E8B98C;color:#16161A}
.podium2 .pp{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(34px,5vw,70px);line-height:1}
.podium2 .pn{font-weight:800;font-size:clamp(18px,2.4vw,32px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.podium2 .ps{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:clamp(24px,3vw,44px)}
.podium2 .pc{font-size:14px;font-weight:600}
.podium2.drum{animation:drum .12s infinite}
@keyframes drum{50%{transform:translateX(2px)}}
.chartbox{background:var(--panel);padding:10px}
.rchart{width:100%;height:auto;display:block}
.rchart .gl{stroke:var(--muted);stroke-opacity:.25}
.rchart .tl{fill:var(--muted);font:700 13px Barlow,sans-serif;text-anchor:middle}
.rchart .ln{stroke-dasharray:3000;stroke-dashoffset:3000;animation:draw 2.4s var(--d) ease forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.ckey{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;font-weight:700}
.ckey span::before{content:'';display:inline-block;width:14px;height:14px;background:var(--c);margin-right:6px;vertical-align:-2px;border:2px solid #16161A}
/* report */
.rq{border-top:2px solid var(--line);padding:12px 0}
.rq-top{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:start}
.rq-n{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;color:var(--muted)}
.rq-q{font-weight:700}
.rq-p{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;padding:0 8px;color:#fff}
.rq-p.mid{color:#16161A}
.rq-a{color:var(--green);font-weight:600;margin-top:4px}
.rq-w{color:var(--red);font-size:15px;margin-top:2px}
.rtable{display:grid;gap:6px}
.rrow{display:grid;grid-template-columns:minmax(0,1.3fr) auto auto;grid-template-areas:"n s p" "w w w" "h h h";gap:4px 12px;background:var(--panel);padding:10px 12px;border-left:6px solid var(--green)}
.rrow.low{border-left-color:var(--red)}
.rrow .rn{grid-area:n;font-weight:800;background:none;border:0;padding:0;animation:none;display:block}
.rrow .rs{grid-area:s;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:20px}
.rrow .rp{grid-area:p;font-weight:700}
.rrow .rw{grid-area:w;color:var(--muted);font-size:14px}
.rrow .rh{grid-area:h;display:flex;flex-wrap:wrap;gap:3px}
.rrow .rh i{width:14px;height:14px;display:block}.rh i.y{background:var(--green)}.rh i.n{background:var(--red)}.rh i.o{background:#BBB}
.pastrep{margin-top:20px}
@media print{.adslot,.back,.btnrow,.toast,.consent,.foot{display:none!important}.rrow,.rq{break-inside:avoid}}
@media (prefers-reduced-motion:reduce){.runner i,.bigtime.low,.podium2.drum{animation:none}.rchart .ln{animation:none;stroke-dashoffset:0}.sboard li,.sboard .bar-in::before,.rb>i,.rn{animation:none}}

/* ---------- end-of-game graph + student report ---------- */
.rchart .tl.ty{text-anchor:end}
.rchart .gname{fill:var(--ink);font:600 15px Barlow,sans-serif}
.rchart .gname.top{font-weight:800;font-size:17px}
.rchart .gpos{fill:var(--muted);font-weight:700}
.rchart .gsc{font-family:'Barlow Condensed',sans-serif;font-weight:800;fill:var(--muted)}
.tiles.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.tiles.four .tile{padding:10px 8px;text-align:center}
.tiles.four small{font-size:12px;color:var(--muted);font-weight:600;line-height:1.1;display:block;margin-top:2px}
.tile.tg b{color:var(--green)}.tile.tb b{color:var(--red)}.tile.tm b{color:#C98A00}
.lostbox{margin-top:12px;padding:14px 16px;background:var(--red-bg);border-left:6px solid var(--red)}
.lostbox .lb-l{display:block;font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.04em}
.lostbox .lb-n{display:block;font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:52px;line-height:1;color:var(--red)}
.lostbox .lb-n::before{content:'−'}
.lostbox .lb-s{font-size:15px}
.lostbox.perfect{background:var(--green-bg);border-left-color:var(--green);font-weight:800;font-size:20px}
.miss .mlost{color:var(--red);font-weight:800;font-size:14px;margin-top:4px}
@media (max-width:420px){.tiles.four b{font-size:26px}}

/* ---------- light / dark mode ---------- */
:root{color-scheme:light}
:root[data-theme="dark"]{color-scheme:dark}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){color-scheme:dark}}
.hero-inner{position:relative}
.themebtn{position:absolute;top:-6px;right:0;display:grid;place-items:center;width:46px;height:46px;border-radius:50%;border:2px solid #16161A;background:#16161A;color:var(--accent);transition:transform .25s}
.themebtn:hover{transform:rotate(-20deg) scale(1.06)}
.theming,.theming *{transition:background-color .35s,color .35s,border-color .35s!important}
:root[data-theme="dark"] .profile,:root[data-theme="dark"] .tr-sum div,:root[data-theme="dark"] .examcard,:root[data-theme="dark"] .ex-hero,:root[data-theme="dark"] .add-subj,:root[data-theme="dark"] .consent-in,:root[data-theme="dark"] .tagcard,:root[data-theme="dark"] .toast,:root[data-theme="dark"] .hot-n{background:#26262C;box-shadow:inset 0 0 0 1px #3A3A42}
:root[data-theme="dark"] .examcard{box-shadow:inset 0 0 0 1px #3A3A42,6px 6px 0 var(--accent)}
:root[data-theme="dark"] .consent-in{box-shadow:6px 6px 0 var(--accent)}
:root[data-theme="dark"] .hero{background:#1F1F23;color:var(--ink);background-image:linear-gradient(rgba(255,209,0,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,209,0,.07) 1px,transparent 1px);background-size:24px 24px;border-bottom:4px solid var(--accent)}
:root[data-theme="dark"] .hero h1{color:var(--accent)}
:root[data-theme="dark"] .hero .unit{background:var(--accent);color:#16161A}
:root[data-theme="dark"] .subj-chip{background:var(--accent);color:#16161A}
:root[data-theme="dark"] .themebtn{background:#26262C;color:var(--accent);border-color:var(--accent)}
:root[data-theme="dark"] .capnote{background:#3A2A18;color:#FFD9B8}
:root[data-theme="dark"] .lockbtn.on{background:var(--accent);color:#16161A;border-color:var(--accent)}
:root[data-theme="dark"] .bigtime{background:#26262C;box-shadow:inset 0 0 0 2px var(--accent)}
:root[data-theme="dark"] .ex-clock{background:#26262C}
:root[data-theme="dark"] .pf-tree{background:#3A3A42;color:#fff}
:root[data-theme="dark"] .vis,:root[data-theme="dark"] .qrbox{background:#fff;color:#16161A}
:root[data-theme="dark"] .chartbox{background:#1F1F23}
:root[data-theme="dark"] .rrow .rh i.o{background:#555}
@media (prefers-color-scheme:dark){
:root:not([data-theme="light"]) .profile,:root:not([data-theme="light"]) .tr-sum div,:root:not([data-theme="light"]) .examcard,:root:not([data-theme="light"]) .ex-hero,:root:not([data-theme="light"]) .add-subj,:root:not([data-theme="light"]) .consent-in,:root:not([data-theme="light"]) .tagcard,:root:not([data-theme="light"]) .toast,:root:not([data-theme="light"]) .hot-n{background:#26262C;box-shadow:inset 0 0 0 1px #3A3A42}
:root:not([data-theme="light"]) .examcard{box-shadow:inset 0 0 0 1px #3A3A42,6px 6px 0 var(--accent)}
:root:not([data-theme="light"]) .consent-in{box-shadow:6px 6px 0 var(--accent)}
:root:not([data-theme="light"]) .hero{background:#1F1F23;color:var(--ink);background-image:linear-gradient(rgba(255,209,0,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,209,0,.07) 1px,transparent 1px);background-size:24px 24px;border-bottom:4px solid var(--accent)}
:root:not([data-theme="light"]) .hero h1{color:var(--accent)}
:root:not([data-theme="light"]) .hero .unit{background:var(--accent);color:#16161A}
:root:not([data-theme="light"]) .subj-chip{background:var(--accent);color:#16161A}
:root:not([data-theme="light"]) .themebtn{background:#26262C;color:var(--accent);border-color:var(--accent)}
:root:not([data-theme="light"]) .capnote{background:#3A2A18;color:#FFD9B8}
:root:not([data-theme="light"]) .lockbtn.on{background:var(--accent);color:#16161A;border-color:var(--accent)}
:root:not([data-theme="light"]) .bigtime{background:#26262C;box-shadow:inset 0 0 0 2px var(--accent)}
:root:not([data-theme="light"]) .ex-clock{background:#26262C}
:root:not([data-theme="light"]) .pf-tree{background:#3A3A42;color:#fff}
:root:not([data-theme="light"]) .vis,:root:not([data-theme="light"]) .qrbox{background:#fff;color:#16161A}
:root:not([data-theme="light"]) .chartbox{background:#1F1F23}
:root:not([data-theme="light"]) .rrow .rh i.o{background:#555}
}