/* Uceni Games. Colours, type and components follow the Uceni Brand Guidelines. */
:root{
  --ink:#000000; --paper:#ffffff; --line:#cdd8e5; --soft:#f2f5f9;
  --good:#1a7a3a; --bad:#c21c2d; --margin:#e2a1a1; --onfill:#ffffff; --blue:#cdd8e5;
  color-scheme:light;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --ink:#f4f4f1; --paper:#17191c; --line:#3a4350; --soft:#22262b;
    --good:#4cc073; --bad:#ff6b77; --margin:#7a4545; --onfill:#17191c; --blue:#2b3a4d;
    color-scheme:dark;
  }
  :root:not([data-theme="light"]) .logo-dark{display:none}
  :root:not([data-theme="light"]) .logo-light{display:inline-block}
}
.logo-light{display:none}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{height:100%;scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;min-height:100%;background:var(--paper);color:var(--ink);
  font-family:"Atkinson Hyperlegible",Arial,system-ui,sans-serif;font-size:1.0625rem;line-height:1.5;-webkit-text-size-adjust:100%}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
a{color:inherit}
.wrap{max-width:34rem;margin:0 auto;padding:1rem 1.25rem 7rem}
.banner{font-size:.8125rem;text-align:center;padding:.4rem 1rem;background:var(--soft)}
.topbar{display:flex;align-items:center;justify-content:space-between;max-width:34rem;margin:0 auto;padding:.9rem 1.25rem 0}
.topbar img{height:28px;width:auto}
h1,h2,h3{line-height:1.2;margin:0}
h1{font-size:1.75rem}
h2{font-size:1.3rem}
p{margin:.5rem 0}
.small{font-size:.875rem}
.stack>*+*{margin-top:1rem}
.hero-logo{height:64px;width:auto;margin-top:2.25rem}
.tag{font-size:1.25rem;font-weight:700;margin-top:.5rem}

.btn{display:block;width:100%;padding:.9rem 1rem;border-radius:12px;border:2px solid var(--ink);background:var(--ink);color:var(--paper);font-weight:700;cursor:pointer;text-align:center;text-decoration:none}
.btn.alt{background:transparent;color:var(--ink)}
.btn.quiet{border-color:transparent;background:transparent;color:var(--ink);text-decoration:underline;font-weight:400;width:auto;padding:.4rem 0}
.btn:disabled{opacity:.45;cursor:not-allowed}
.row{display:flex;gap:.75rem}
.row>*{flex:1}

.field{display:block}
.field span{display:block;font-weight:700;margin-bottom:.35rem}
.field input,.field textarea{width:100%;padding:.8rem .9rem;border:2px solid var(--line);border-radius:10px;background:var(--paper)}
.field input:focus,.field textarea:focus{border-color:var(--ink);outline:none}
.code-input{letter-spacing:.4em;font-size:1.4rem;text-align:center}
.err{color:var(--bad);font-size:.9rem;min-height:1.3em;margin:.35rem 0 0}
.notice{background:var(--soft);border-radius:10px;padding:.75rem .9rem;font-size:.9rem}

/* Answer options styled after a shaded exam answer sheet */
.opts{list-style:none;margin:1.25rem 0 0;padding:0;display:grid;gap:.6rem}
.opt{display:flex;align-items:center;gap:.9rem;width:100%;text-align:left;padding:.8rem .9rem;border:2px solid var(--line);border-radius:12px;background:var(--paper);cursor:pointer}
.opt:hover:not(:disabled){border-color:var(--ink)}
.bub{flex:none;width:2.1rem;height:2.1rem;border-radius:50%;border:2px solid var(--ink);display:grid;place-items:center;font-weight:700;font-size:.95rem;transition:background .15s,color .15s;position:relative}
.opt:disabled{cursor:default}
.opt.chosen .bub{background:var(--ink);color:var(--onfill)}
.opt.right{border-color:var(--good)}
.opt.right .bub{background:var(--good);border-color:var(--good);color:#fff}
.opt.wrong{border-color:var(--bad)}
.opt.wrong .bub{background:transparent;border-color:var(--bad);color:var(--bad)}
.opt.wrong .bub::after{content:"";position:absolute;width:140%;height:2px;background:var(--bad);transform:rotate(-40deg)}
.opt.fade{opacity:.55}

.qhead{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;font-size:.9rem;margin-top:.5rem}
.timer{height:5px;background:var(--line);border-radius:3px;overflow:hidden;margin:.6rem 0 1.25rem}
.timer i{display:block;height:100%;width:100%;background:var(--ink)}
.timer.low i{background:var(--bad)}
.q{font-size:1.3rem;font-weight:700;line-height:1.35}
.fb{margin-top:1.25rem;padding:1rem;border-left:4px solid var(--ink);background:var(--soft);border-radius:0 10px 10px 0}
.fb.good{border-color:var(--good)} .fb.bad{border-color:var(--bad)}
.fb strong{display:block;margin-bottom:.25rem}

/* Exercise book ruling for subject lists */
.ruled{list-style:none;margin:.75rem 0 0;padding:0 0 0 .9rem;border-left:2px solid var(--margin)}
.ruled li{border-bottom:1px solid var(--line)}
.ruled button{display:flex;justify-content:space-between;align-items:center;gap:1rem;width:100%;padding:.95rem 0;background:none;border:0;text-align:left;cursor:pointer}
.ruled .nm{font-weight:700}
.ruled .lv{font-size:.875rem;white-space:nowrap}

.stats{display:flex;gap:1.5rem;margin-top:1rem;flex-wrap:wrap}
.stats div{font-size:.875rem}
.stats b{display:block;font-size:1.6rem;line-height:1.1}

.plans{list-style:none;margin:1rem 0 0;padding:0;display:grid;gap:.6rem}
.plan{display:flex;align-items:center;gap:.9rem;width:100%;padding:1rem;border:2px solid var(--line);border-radius:12px;background:var(--paper);cursor:pointer;text-align:left}
.plan[aria-checked="true"]{border-color:var(--ink)}
.plan[aria-checked="true"] .bub{background:var(--ink)}
.plan .bub{width:1.4rem;height:1.4rem}
.plan .pr{margin-left:auto;font-weight:700;font-size:1.15rem;white-space:nowrap}

.sheet{border:2px solid var(--ink);border-radius:14px;padding:1.25rem}
.sms{background:var(--soft);border-radius:14px 14px 14px 4px;padding:.9rem 1rem;font-size:.95rem}

.bar{height:6px;background:var(--line);border-radius:3px;overflow:hidden;margin-top:.4rem}
.bar i{display:block;height:100%;background:var(--ink)}
.subj{padding:.9rem 0;border-bottom:1px solid var(--line)}
.subj .top{display:flex;justify-content:space-between;gap:1rem}

.board{list-style:none;margin:1rem 0 0;padding:0}
.board li{display:flex;align-items:center;gap:.9rem;padding:.8rem 0;border-bottom:1px solid var(--line)}
.board .rk{width:1.75rem;font-weight:700}
.board .me{font-weight:700}
.board .pt{margin-left:auto}

.toggle{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--line)}
.sw{width:3rem;height:1.75rem;border-radius:1rem;border:2px solid var(--ink);background:var(--paper);position:relative;cursor:pointer;flex:none}
.sw::after{content:"";position:absolute;top:2px;left:2px;width:1.2rem;height:1.2rem;border-radius:50%;background:var(--ink);transition:transform .15s}
.sw[aria-checked="true"]{background:var(--ink)}
.sw[aria-checked="true"]::after{background:var(--paper);transform:translateX(1.2rem)}

dl.kv{margin:1rem 0 0}
dl.kv div{display:flex;justify-content:space-between;gap:1rem;padding:.7rem 0;border-bottom:1px solid var(--line)}
dl.kv dt{font-weight:400} dl.kv dd{margin:0;font-weight:700;text-align:right}

.review{list-style:none;margin:1rem 0 0;padding:0}
.review li{padding:.9rem 0;border-bottom:1px solid var(--line)}
.review .mk{font-weight:700}
.review .mk.good{color:var(--good)} .review .mk.bad{color:var(--bad)}

nav.tabs{position:fixed;left:0;right:0;bottom:0;background:var(--paper);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px);z-index:5}
nav.tabs .in{max-width:34rem;margin:0 auto;display:flex}
nav.tabs button{flex:1;padding:.85rem .25rem;background:none;border:0;font-size:.9rem;cursor:pointer;border-top:3px solid transparent}
nav.tabs button[aria-current="page"]{font-weight:700;border-top-color:var(--ink)}

.note{font-size:.875rem;border-top:1px solid var(--line);padding-top:1rem;margin-top:2rem}
.big{font-size:3rem;font-weight:700;line-height:1}
.loading{padding:3rem 0;text-align:center}
.links{display:flex;flex-wrap:wrap;gap:.25rem 1rem;font-size:.875rem;margin-top:1rem}


/* Legal pages */
.legal h1{margin-top:1.5rem}
.legal h2{margin-top:2rem}
.legal h3{margin-top:1.25rem;font-size:1.05rem}
.legal li{margin:.35rem 0}
.legal table{border-collapse:collapse;width:100%;margin:1rem 0;font-size:.95rem}
.legal th,.legal td{border:1px solid var(--line);padding:.5rem .6rem;text-align:left;vertical-align:top}
.legal .wrap{padding-bottom:3rem}

/* ---------- Game layer ---------- */
.online{display:inline-flex;align-items:center;gap:.45rem;font-size:.85rem;padding:.3rem .75rem;border-radius:999px;background:var(--soft);white-space:nowrap}
.online i{width:.55rem;height:.55rem;border-radius:50%;background:var(--good);box-shadow:0 0 0 0 rgba(26,122,58,.5);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(26,122,58,.45)}70%{box-shadow:0 0 0 .5rem rgba(26,122,58,0)}100%{box-shadow:0 0 0 0 rgba(26,122,58,0)}}
.topbar .online{font-size:.8rem}
.pitch{display:flex;gap:.6rem;margin:.25rem 0}
.pitch span{width:2.6rem;height:2.6rem;border-radius:12px;background:var(--blue);display:grid;place-items:center}
.ic{width:1.4rem;height:1.4rem}
.big-btn{font-size:1.15rem;padding:1.05rem 1rem;border-radius:14px;box-shadow:0 4px 0 0 var(--line);transition:transform .08s,box-shadow .08s}
.big-btn:active:not(:disabled){transform:translateY(3px);box-shadow:0 1px 0 0 var(--line)}

/* Player card */
.player{background:var(--ink);color:var(--paper);border-radius:18px;padding:1.1rem 1.1rem 1rem;margin-top:.75rem}
.player .who{display:flex;align-items:center;gap:.75rem}
.player .who b{display:block;font-size:1.3rem;line-height:1.2}
.player .who .small{opacity:.75}
.av{flex:none;width:2.75rem;height:2.75rem;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:1.2rem;background:var(--blue);color:#000}
.chips{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem;margin-top:1rem}
.chips div{background:rgba(255,255,255,.1);border-radius:12px;padding:.6rem .5rem;text-align:center}
.chips b{display:block;font-size:1.45rem;line-height:1.1}
.chips span{font-size:.78rem;opacity:.8}
.chips .streak b{display:flex;align-items:center;justify-content:center;gap:.2rem}
.chips .streak .fl{width:1.2rem;height:1.2rem;color:var(--paper);opacity:.45}
.chips .streak.lit .fl{color:#ff8a3d;opacity:1;animation:flick 1.6s ease-in-out infinite}
@keyframes flick{0%,100%{transform:scale(1)}50%{transform:scale(1.12) rotate(-3deg)}}
.goal{font-size:.85rem;opacity:.8;margin:.75rem 0 0}

/* Subject tiles */
.tiles{list-style:none;margin:.9rem 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.tile{display:flex;flex-direction:column;align-items:flex-start;gap:.35rem;width:100%;height:100%;padding:.9rem;border:2px solid var(--line);border-radius:16px;background:var(--paper);text-align:left;cursor:pointer;box-shadow:0 4px 0 0 var(--line);transition:transform .08s,box-shadow .08s,border-color .15s}
.tile:hover{border-color:var(--ink)}
.tile:active{transform:translateY(3px);box-shadow:0 1px 0 0 var(--line)}
.tile .ico,.subhead .ico{width:2.6rem;height:2.6rem;border-radius:12px;background:var(--blue);display:grid;place-items:center}
.tile .nm{font-weight:700;line-height:1.25;margin-top:.2rem}
.tile .rk{font-size:.78rem;font-weight:700}
.tile .rk span{font-weight:400}
.tile .bar{width:100%;margin-top:auto}
.bar i{background:var(--good)!important}
.subhead{display:flex;align-items:center;gap:.75rem}

/* Difficulty modes */
.modes{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:.6rem}
.mode{display:flex;flex-direction:column;align-items:center;gap:.15rem;width:100%;padding:.9rem .4rem;border:2px solid var(--line);border-radius:16px;background:var(--paper);cursor:pointer;box-shadow:0 4px 0 0 var(--line)}
.mode[aria-checked="true"]{border-color:var(--ink);background:var(--soft);box-shadow:0 4px 0 0 var(--ink)}
.mode .secs{font-size:2rem;font-weight:700;line-height:1}
.mode .secs small{font-size:1rem}
.mode .pts{font-size:.8rem;font-weight:700;color:var(--good);margin-top:.3rem}
.stars{display:flex;gap:.1rem}
.st{width:1.05rem;height:1.05rem;fill:var(--line)}
.st.on{fill:var(--ink)}
.bolt{width:1rem;height:1rem;vertical-align:-.15rem}

/* In round */
.hud{display:flex;align-items:center;gap:.75rem;margin-top:.25rem}
.hud .x{background:none;border:0;font-size:1.8rem;line-height:1;cursor:pointer;padding:0 .2rem}
.hud .small{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.score{font-weight:700;font-size:1.25rem;background:var(--soft);border-radius:999px;padding:.15rem .8rem;white-space:nowrap}
.score small{font-size:.8rem}
.score.bump{animation:bump .35s}
@keyframes bump{50%{transform:scale(1.2)}}
.hud2{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-top:.75rem;min-height:1.6rem}
.dots{display:flex;gap:.3rem;flex-wrap:wrap}
.dots i{width:.8rem;height:.8rem;border-radius:50%;background:var(--line)}
.dots i.g{background:var(--good)} .dots i.r{background:var(--bad)} .dots i.c{background:var(--paper);box-shadow:inset 0 0 0 2px var(--ink)}
.results .dots{justify-content:center}
.combo{font-weight:700;font-size:.85rem;color:var(--good);opacity:0;transform:scale(.8);transition:opacity .2s,transform .2s;white-space:nowrap}
.combo.on{opacity:1;transform:scale(1)}
.clock{display:flex;align-items:center;gap:.8rem;margin:.9rem 0 .4rem}
.clock .secs{font-size:2rem;font-weight:700;width:2.6rem;text-align:center;font-variant-numeric:tabular-nums}
.clock .secs.low{color:var(--bad);animation:bump .5s infinite}
.clock .timer{flex:1;height:10px;border-radius:5px;margin:0}
.timer i{transition:width .1s linear;border-radius:5px}
.qn{margin:0}
.opt{position:relative;box-shadow:0 3px 0 0 var(--line);transition:transform .08s,box-shadow .08s,border-color .15s}
.opt:active:not(:disabled){transform:translateY(2px);box-shadow:0 1px 0 0 var(--line)}
.opt.right{background:color-mix(in srgb,var(--good) 10%,var(--paper));box-shadow:0 3px 0 0 var(--good)}
.opt.wrong{background:color-mix(in srgb,var(--bad) 8%,var(--paper));box-shadow:0 3px 0 0 var(--bad)}
.opt.pop{animation:pop .35s}
.opt.shake{animation:shake .4s}
@keyframes pop{50%{transform:scale(1.03)}}
@keyframes shake{20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}
.float{position:absolute;right:1rem;top:50%;font-weight:700;color:var(--good);pointer-events:none;animation:floatup 1.1s ease-out forwards}
@keyframes floatup{0%{opacity:0;transform:translateY(0)}15%{opacity:1}100%{opacity:0;transform:translateY(-2.8rem)}}

/* Results */
.results{text-align:center}
.results .kv{text-align:left}
.bigstars{display:flex;justify-content:center;gap:.5rem;margin-top:1rem}
.bigstars .st{width:3.2rem;height:3.2rem}
.bigstars .st:nth-child(2){transform:translateY(-.6rem)}
.st.pop{animation:starpop .45s cubic-bezier(.2,1.6,.4,1)}
.bigstars .st:nth-child(2).pop{animation-name:starpop2}
@keyframes starpop{0%{transform:scale(.2)}100%{transform:scale(1)}}
@keyframes starpop2{0%{transform:translateY(-.6rem) scale(.2)}100%{transform:translateY(-.6rem) scale(1)}}
.big small{font-size:1.2rem;font-weight:400}
.earned{display:inline-flex;flex-direction:column;align-items:center;background:var(--soft);border-radius:16px;padding:.8rem 1.6rem}
.earned span{font-size:2.2rem;font-weight:700;color:var(--good);line-height:1.1;font-variant-numeric:tabular-nums}
.rankup{border:2px solid var(--good);border-radius:14px;padding:.9rem;background:color-mix(in srgb,var(--good) 8%,var(--paper))}
.rankup b{display:block;font-size:1.2rem;color:var(--good)}
.confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:20}
.confetti i{position:absolute;top:-1rem;width:.5rem;height:.9rem;border-radius:2px;animation:fall linear forwards}
@keyframes fall{to{top:105%;transform:translateX(3rem) rotate(720deg)}}

/* Board podium */
.podium{display:grid;grid-template-columns:1fr 1fr 1fr;align-items:end;gap:.5rem;margin-top:1.25rem}
.pd{display:flex;flex-direction:column;align-items:center;gap:.2rem;text-align:center;min-width:0}
.pd b{font-size:.9rem;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pd .step{width:100%;display:grid;place-items:center;font-size:1.5rem;font-weight:700;border-radius:12px 12px 0 0;background:var(--blue);margin-top:.35rem}
.pd.p1 .step{height:6rem;background:var(--ink);color:var(--paper)} .pd.p2 .step{height:4.5rem} .pd.p3 .step{height:3.25rem;background:var(--soft)}
.pd.p1 .av{width:3.25rem;height:3.25rem;box-shadow:0 0 0 3px var(--ink)}
.pd.me b{text-decoration:underline}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}

/* Front page lockup, as on the brand guideline cover: always white on solid black */
.hero{background:#000;color:#fff;border-radius:20px;margin-top:.75rem;padding:2.25rem 1.25rem 2rem;display:flex;flex-direction:column;align-items:center;text-align:center}
.hero-icon{height:72px;width:auto}
.hero-mark{height:56px;width:auto;margin-top:1.25rem}
.hero-tag{font-size:1.2rem;font-weight:700;margin:.9rem 0 0;color:#fff}
.online-row{display:flex;justify-content:center;margin-top:1.25rem}