/* Chandilabs Learning Lab — playful, chunky, made for small fingers */
:root{
  --ink:#1e293b;--ink-2:#51607a;--muted:#8a94a6;
  --gold:#ffb703;--gold-dk:#d99600;--sky:#0284c7;--sky-dk:#0369a1;--orange:#fb8500;--orange-dk:#d26d00;
  --mint:#10b981;--mint-dk:#0b8a61;--plum:#8b6cff;--plum-dk:#6a4fe0;--pink:#ec4899;--red:#ef4b5f;
  --cream:#fffdf7;--line:#e6ebf2;
  --fun:'Fredoka','Nunito',system-ui,sans-serif;--body:'Nunito',system-ui,sans-serif;
  --tap:64px;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{min-height:100%}
body{font-family:var(--body);color:var(--ink);font-size:18px;line-height:1.45;overflow-x:hidden;
  background:linear-gradient(180deg,#dff1ff 0%,#fff7e3 55%,#fffdf7 100%) fixed}
/* soft clouds */
body::before,body::after{content:"";position:fixed;z-index:-1;border-radius:999px;background:#fff;opacity:.75;filter:blur(2px)}
body::before{width:220px;height:70px;top:110px;left:-40px;box-shadow:90px -30px 0 10px #fff,170px 0 0 -6px #fff;animation:drift 38s linear infinite}
body::after{width:180px;height:60px;top:420px;right:-60px;box-shadow:-80px -24px 0 8px #fff,-150px 4px 0 -4px #fff;animation:drift 46s linear infinite reverse}
@keyframes drift{50%{transform:translateX(40px)}}
button{font-family:var(--fun);color:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3{font-family:var(--fun);font-weight:700;line-height:1.15}
.center{text-align:center}

/* ===== top bar ===== */
.hud{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.82);backdrop-filter:blur(10px);border-bottom:2px solid #eef3fa}
.hud-in{max-width:980px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:8px 14px}
.me{display:flex;align-items:center;gap:8px;background:#fff;border:2px solid var(--line);border-radius:999px;padding:4px 14px 4px 4px;min-height:52px;box-shadow:0 3px 0 var(--line)}
.me .av{width:42px;height:42px;border-radius:50%;background:#fff3cf;display:grid;place-items:center;font-size:1.6rem}
.me b{font-family:var(--fun);font-weight:600;font-size:1.05rem;max-width:140px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lvl{flex:1;display:flex;align-items:center;gap:8px;min-width:0}
.lvl-badge{flex:none;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,#ffd166,#fb8500);color:#fff;font-family:var(--fun);font-weight:700;font-size:1.25rem;display:grid;place-items:center;box-shadow:0 3px 0 var(--orange-dk);text-shadow:0 1px 0 rgba(0,0,0,.15)}
.lvl-txt{display:flex;flex-direction:column;flex:1;min-width:0}
.lvl-txt small{font-family:var(--fun);font-weight:600;color:var(--ink-2);font-size:.85rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar{height:16px;background:#eef2f8;border-radius:99px;overflow:hidden;box-shadow:inset 0 2px 0 rgba(0,0,0,.05)}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#ffd166,#fb8500);border-radius:99px;transition:width .6s cubic-bezier(.3,1.6,.5,1)}
.pills{display:flex;gap:6px}
.pill{display:flex;align-items:center;gap:4px;background:#fff;border:2px solid var(--line);border-radius:999px;padding:0 12px;height:48px;font-family:var(--fun);font-weight:700;font-size:1.1rem;box-shadow:0 3px 0 var(--line)}
.pill.sound{width:48px;justify-content:center;padding:0;font-size:1.3rem}
.pill.bump{animation:bump .5s}
@keyframes bump{40%{transform:scale(1.25)}}
.site-link{font-family:var(--fun);font-weight:600;font-size:.85rem;color:var(--ink-2);text-decoration:none;white-space:nowrap}

/* ===== stage ===== */
.stage{max-width:980px;margin:0 auto;padding:18px 16px 120px}
.sub{color:var(--ink-2);font-size:1.1rem;margin:6px 0 18px}

/* owl talking */
.owl-talk{display:flex;align-items:flex-end;justify-content:center;gap:10px;margin:6px 0 18px}
.owl{font-size:4.6rem;line-height:1;animation:hop 2.4s ease-in-out infinite;filter:drop-shadow(0 6px 6px rgba(0,0,0,.12))}
@keyframes hop{0%,100%{transform:translateY(0) rotate(0)}40%{transform:translateY(-8px) rotate(-4deg)}60%{transform:translateY(-8px) rotate(4deg)}}
.bubble{position:relative;background:#fff;border:3px solid #ffe08a;border-radius:24px;padding:12px 18px;font-family:var(--fun);font-weight:600;font-size:1.3rem;max-width:520px;text-align:left;box-shadow:0 6px 0 #ffe9b0}
.bubble::before{content:"";position:absolute;left:-14px;bottom:18px;border:10px solid transparent;border-right:14px solid #ffe08a}
.bubble::after{content:"";position:absolute;left:-8px;bottom:20px;border:8px solid transparent;border-right:11px solid #fff}
.bubble small{display:block;font-family:var(--body);font-weight:600;font-size:.95rem;color:var(--ink-2)}

/* big chunky buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:var(--tap);padding:0 28px;border-radius:999px;background:var(--sky);color:#fff;font-family:var(--fun);font-weight:700;font-size:1.3rem;box-shadow:0 6px 0 var(--sky-dk);transition:transform .1s,box-shadow .1s;text-decoration:none}
.btn:active{transform:translateY(5px);box-shadow:0 1px 0 var(--sky-dk)}
.btn.big{min-height:76px;font-size:1.55rem;padding:0 36px}
.btn.alt{background:#fff;color:var(--ink);border:3px solid var(--line);box-shadow:0 6px 0 var(--line)}
.btn.alt:active{box-shadow:0 1px 0 var(--line)}
.btn.mint{background:var(--mint);box-shadow:0 6px 0 var(--mint-dk)}
.btn.mint:active{box-shadow:0 1px 0 var(--mint-dk)}
.btn.gold{background:var(--gold);color:#3b2a00;box-shadow:0 6px 0 var(--gold-dk)}
.btn.gold:active{box-shadow:0 1px 0 var(--gold-dk)}
.row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:20px}

/* ===== welcome ===== */
.name-box{width:min(420px,100%);font:600 1.6rem var(--fun);text-align:center;padding:16px 18px;border-radius:24px;border:4px solid var(--line);background:#fff;color:var(--ink);box-shadow:0 6px 0 var(--line)}
.name-box:focus{outline:none;border-color:var(--sky);box-shadow:0 6px 0 #9cd3f5}
.label{font-family:var(--fun);font-weight:600;font-size:1.15rem;margin:22px 0 10px;color:var(--ink-2)}
.avatars{display:grid;grid-template-columns:repeat(8,1fr);gap:10px;max-width:640px;margin:0 auto}
.avatars button{aspect-ratio:1;border-radius:22px;background:#fff;border:3px solid var(--line);font-size:2.4rem;box-shadow:0 5px 0 var(--line);transition:transform .15s}
.avatars button:active{transform:translateY(4px);box-shadow:0 1px 0 var(--line)}
.avatars button.on{border-color:var(--gold);background:#fff4d1;box-shadow:0 5px 0 var(--gold-dk);transform:scale(1.08) rotate(-4deg)}

.bands{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:10px}
.band{display:flex;flex-direction:column;align-items:center;gap:6px;background:#fff;border:4px solid var(--line);border-bottom-width:10px;border-color:var(--line) var(--line) var(--c);border-radius:30px;padding:26px 12px;transition:transform .15s}
.band:hover{transform:translateY(-4px) rotate(-1deg)}
.band:active{transform:translateY(4px)}
.band .em{font-size:4rem;line-height:1}
.band b{font-size:1.45rem}
.band small{font-family:var(--body);font-weight:700;color:var(--ink-2);font-size:1rem;background:#f4f7fb;border-radius:999px;padding:.2rem .8rem}

/* ===== home ===== */
.band-pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:3px solid var(--c);border-radius:999px;padding:.4rem 1rem;font-family:var(--fun);font-weight:600;font-size:1rem;margin-bottom:18px;min-height:48px}
.band-pill u{color:var(--sky);text-decoration:none;background:#e0f2fe;border-radius:999px;padding:.05rem .55rem;font-size:.9rem}
.games{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.game{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;background:#fff;border-radius:32px;padding:22px 16px 18px;border:4px solid #fff;box-shadow:0 8px 0 color-mix(in srgb,var(--c) 45%,#e6ebf2),0 18px 30px -18px rgba(30,41,59,.35);transition:transform .15s}
.game:hover{transform:translateY(-5px) rotate(-1deg)}
.game:active{transform:translateY(5px);box-shadow:0 3px 0 color-mix(in srgb,var(--c) 45%,#e6ebf2)}
.game .disc{width:108px;height:108px;border-radius:50%;display:grid;place-items:center;font-size:3.6rem;background:radial-gradient(circle at 35% 30%,#fff 0,color-mix(in srgb,var(--c) 28%,#fff) 60%,color-mix(in srgb,var(--c) 45%,#fff) 100%);box-shadow:inset 0 -6px 0 color-mix(in srgb,var(--c) 30%,transparent)}
.game:hover .disc{animation:wiggle .6s}
.game h3{font-size:1.45rem;margin-top:4px}
.game p{color:var(--ink-2);font-size:1rem;line-height:1.3}
.game .best{font-size:1.25rem;letter-spacing:2px;min-height:1.6rem}
.game .best .off{filter:grayscale(1);opacity:.25}
.game .play{position:absolute;top:14px;right:14px;width:44px;height:44px;border-radius:50%;background:var(--c);color:#fff;display:grid;place-items:center;font-size:1.1rem;box-shadow:0 4px 0 rgba(0,0,0,.15)}
.game .tag{font-family:var(--fun);font-weight:600;font-size:.85rem;color:color-mix(in srgb,var(--c) 70%,#1e293b);background:color-mix(in srgb,var(--c) 14%,#fff);border-radius:999px;padding:.15rem .7rem}
@keyframes wiggle{25%{transform:rotate(-10deg) scale(1.06)}75%{transform:rotate(10deg) scale(1.06)}}

/* ===== play screen ===== */
.playbar{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.home-btn{flex:none;width:var(--tap);height:var(--tap);border-radius:22px;background:#fff;border:3px solid var(--line);box-shadow:0 5px 0 var(--line);font-size:1.8rem;display:grid;place-items:center}
.home-btn:active{transform:translateY(4px);box-shadow:0 1px 0 var(--line)}
.dots{flex:1;display:flex;gap:6px;flex-wrap:wrap;justify-content:center}
.dots span{width:34px;height:34px;border-radius:50%;background:#fff;border:3px solid var(--line);display:grid;place-items:center;font-size:1.05rem;transition:transform .3s}
.dots span.cur{border-color:var(--sky);animation:pulse 1.2s infinite}
.dots span.win{background:#fff4d1;border-color:var(--gold);transform:scale(1.08)}
.dots span.half{background:#fff8e6;border-color:#ffd98a}
.dots span.miss{background:#f4f6f9;border-color:#e3e7ee;color:var(--muted)}
@keyframes pulse{50%{box-shadow:0 0 0 6px rgba(2,132,199,.18)}}
.count{flex:none;font-family:var(--fun);font-weight:700;color:var(--ink-2);font-size:1.1rem;min-width:52px;text-align:right}

.qcard{background:#fff;border-radius:34px;padding:26px 20px;text-align:center;box-shadow:0 8px 0 #e8edf4,0 20px 34px -22px rgba(30,41,59,.35);margin-bottom:22px;border:4px solid #fff}
.qcard p{font-family:var(--fun);font-weight:600;font-size:clamp(1.35rem,3.6vw,1.9rem);line-height:1.3}
.qcard .small{font-size:1.15rem;color:var(--ink-2)}
.qcard .big{font-family:var(--fun);font-weight:700;font-size:clamp(5rem,20vw,8rem);line-height:1;color:var(--orange);letter-spacing:.05em;text-shadow:0 6px 0 #ffe1bd}
.qcard .emoji{font-size:clamp(5rem,20vw,7.5rem);line-height:1.1;display:inline-block;animation:float 3s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-8px)}}
.say{margin-top:14px}
.hear{display:inline-flex;align-items:center;gap:8px;min-height:56px;padding:0 22px;border-radius:999px;background:#eef8ff;color:var(--sky-dk);border:3px solid #cde8fb;font-family:var(--fun);font-weight:600;font-size:1.15rem;box-shadow:0 4px 0 #cde8fb}
.hear:active{transform:translateY(3px);box-shadow:0 1px 0 #cde8fb}

/* answer buttons: big, colorful, impossible to miss */
.opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.opts.one{grid-template-columns:1fr;max-width:720px;margin:0 auto}
.opt{--oc:#0284c7;position:relative;min-height:104px;padding:16px 14px;border-radius:28px;background:#fff;border:4px solid color-mix(in srgb,var(--oc) 30%,#fff);box-shadow:0 7px 0 color-mix(in srgb,var(--oc) 40%,#fff);font-family:var(--fun);font-weight:600;font-size:clamp(1.25rem,3.2vw,1.6rem);line-height:1.2;transition:transform .12s,box-shadow .12s,opacity .2s}
.opts.one .opt{min-height:84px;text-align:left;padding:16px 22px 16px 70px}
.opts.one .opt::before{content:attr(data-letter);position:absolute;left:16px;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;background:color-mix(in srgb,var(--oc) 16%,#fff);color:color-mix(in srgb,var(--oc) 80%,#000);display:grid;place-items:center;font-size:1.1rem}
.opt:nth-child(4n+1){--oc:#0284c7}.opt:nth-child(4n+2){--oc:#fb8500}.opt:nth-child(4n+3){--oc:#10b981}.opt:nth-child(4n+4){--oc:#8b6cff}
.opt .e{display:block;font-size:clamp(3rem,10vw,4rem);line-height:1.1;margin-bottom:4px}
.opt:active:not(:disabled){transform:translateY(6px);box-shadow:0 1px 0 color-mix(in srgb,var(--oc) 40%,#fff)}
.opt:disabled{cursor:default}
.opt.right{--oc:#10b981;background:#e6fbf2;border-color:var(--mint);box-shadow:0 7px 0 var(--mint-dk);animation:pop .45s}
.opt.right::after{content:"✓";position:absolute;top:-12px;right:-10px;width:40px;height:40px;border-radius:50%;background:var(--mint);color:#fff;display:grid;place-items:center;font-size:1.3rem;box-shadow:0 3px 0 var(--mint-dk)}
.opt.wrong{--oc:#ef4b5f;background:#ffeef0;border-color:#ffb3bc;box-shadow:0 7px 0 #ffb3bc;animation:shake .45s;opacity:.65}
.opt.dim{opacity:.4}
@keyframes pop{40%{transform:scale(1.08)}}
@keyframes shake{20%{transform:translateX(-10px) rotate(-2deg)}40%{transform:translateX(10px) rotate(2deg)}60%{transform:translateX(-6px)}80%{transform:translateX(6px)}}
.try{min-height:40px;margin-top:16px;text-align:center;font-family:var(--fun);font-weight:600;font-size:1.3rem;color:var(--orange-dk)}

/* cheer sheet (feedback) */
.cheer{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;justify-content:center;padding:0 12px 14px;pointer-events:none}
.cheer-in{pointer-events:auto;width:min(720px,100%);display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:#fff;border:4px solid var(--mint);border-radius:30px;padding:14px 16px;box-shadow:0 10px 0 var(--mint-dk),0 24px 40px -18px rgba(0,0,0,.35);animation:rise .35s cubic-bezier(.3,1.5,.5,1)}
.cheer.no .cheer-in{border-color:#ffb3bc;box-shadow:0 10px 0 #f18b98,0 24px 40px -18px rgba(0,0,0,.35)}
.cheer-face{font-size:3.2rem;line-height:1;animation:hop 1.4s ease-in-out infinite}
.cheer-txt{flex:1;min-width:180px}
.cheer-txt b{display:block;font-family:var(--fun);font-weight:700;font-size:1.6rem;color:var(--mint-dk)}
.cheer.no .cheer-txt b{color:var(--red)}
.cheer-txt span{display:block;color:var(--ink-2);font-weight:700;font-size:1.05rem}
.cheer .btn{min-width:170px}
@keyframes rise{from{transform:translateY(120%)}}

/* ===== bar model (math) ===== */
.bm{max-width:460px;margin:16px auto 0}
.bm-total{border:4px solid var(--ink);border-bottom:0;border-radius:16px 16px 0 0;padding:6px;font-family:var(--fun);font-weight:700;font-size:1.6rem;background:#fff3df}
.bm-parts{display:flex;border:4px solid var(--ink);border-radius:0 0 16px 16px;overflow:hidden}
.bm-parts div{padding:16px 4px;font-family:var(--fun);font-weight:700;font-size:1.7rem;border-right:4px solid var(--ink);flex-basis:0}
.bm-parts div:last-child{border-right:0}
.bm-parts div.q,.bm-total.q{color:var(--orange)}
.bm-parts div:nth-child(odd){background:#d9ecff}.bm-parts div:nth-child(even){background:#d6f5ec}

/* ===== action time ===== */
.action-card{background:#fff;border-radius:38px;padding:30px 16px;text-align:center;box-shadow:0 10px 0 #e8edf4;margin-bottom:22px;border:4px solid #fff}
.action-card .emoji{font-size:clamp(6rem,30vw,10rem);line-height:1.1;display:inline-block;animation:wiggle 1.1s ease-in-out infinite}
.action-card h2{font-size:clamp(2.2rem,9vw,3.4rem);color:var(--orange);margin-top:6px;text-shadow:0 5px 0 #ffe1bd}

/* ===== word builder ===== */
.slots{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:6px 0 20px}
.slot{width:clamp(56px,14vw,78px);height:clamp(66px,16vw,90px);border-radius:20px;border:4px dashed #cfd8e3;background:rgba(255,255,255,.7);display:grid;place-items:center;font-family:var(--fun);font-weight:700;font-size:clamp(2rem,7vw,2.8rem);text-transform:lowercase;color:var(--sky-dk)}
.slot.fill{border-style:solid;border-color:var(--sky);background:#fff;box-shadow:0 5px 0 #9cd3f5;cursor:pointer;animation:pop .3s}
.slot.hint{border-color:var(--gold);box-shadow:0 5px 0 var(--gold-dk);color:var(--gold-dk)}
.slots.good .slot{border-color:var(--mint);color:var(--mint-dk);box-shadow:0 5px 0 var(--mint-dk);animation:pop .45s}
.slots.bad{animation:shake .45s}
.tilesrow{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.lt{--tc:#ffb703;--td:#d99600;width:clamp(64px,16vw,92px);height:clamp(70px,17vw,100px);border-radius:22px;background:var(--tc);color:#3b2a00;font-family:var(--fun);font-weight:700;font-size:clamp(2.2rem,8vw,3rem);box-shadow:0 7px 0 var(--td);text-transform:lowercase;transition:transform .1s}
.lt:nth-child(5n+2){--tc:#7cc9ff;--td:#3a9fe0;color:#08324f}.lt:nth-child(5n+3){--tc:#7be0b6;--td:#2fb382;color:#073b29}.lt:nth-child(5n+4){--tc:#ffb0c8;--td:#e57399;color:#4a0f24}.lt:nth-child(5n+5){--tc:#c6b5ff;--td:#8f74f0;color:#2a1a63}
.lt:active:not(:disabled){transform:translateY(6px);box-shadow:0 1px 0 var(--td)}
.lt:disabled{opacity:.18;box-shadow:none;transform:scale(.92)}
.tools{display:flex;gap:12px;justify-content:center;margin-top:22px;flex-wrap:wrap}

/* ===== results ===== */
.result{text-align:center;padding-top:10px}
.trophy{font-size:7rem;line-height:1;animation:hop 1.6s ease-in-out infinite;filter:drop-shadow(0 10px 8px rgba(0,0,0,.15))}
.result h2{font-size:clamp(2.4rem,8vw,3.4rem);margin:8px 0}
.result .stars{font-size:4.2rem;letter-spacing:8px;margin:4px 0 6px}
.result .stars span{display:inline-block;animation:starIn .6s cubic-bezier(.3,1.6,.5,1) both}
.result .stars span:nth-child(2){animation-delay:.25s}.result .stars span:nth-child(3){animation-delay:.5s}
.result .stars .off{filter:grayscale(1);opacity:.2}
@keyframes starIn{from{transform:scale(0) rotate(-120deg)}}
.score{display:inline-block;font-family:var(--fun);font-weight:700;font-size:2rem;background:#fff;border-radius:999px;padding:.3rem 1.4rem;box-shadow:0 5px 0 var(--line);margin-bottom:8px}

/* chooser (pick a mode) */
.modes{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;max-width:760px;margin:0 auto}
.mode{display:flex;align-items:center;gap:14px;text-align:left;background:#fff;border-radius:28px;padding:18px 20px;min-height:96px;border:4px solid var(--line);box-shadow:0 7px 0 var(--line);font-family:var(--fun);font-weight:600;font-size:1.3rem;transition:transform .12s}
.mode:active{transform:translateY(5px);box-shadow:0 2px 0 var(--line)}
.mode .mi{font-size:2.6rem}

/* confetti */
#fx{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:50}
.conf{position:absolute;top:-30px;font-size:2rem;animation:fall 1.8s ease-in forwards}
@keyframes fall{to{transform:translate(var(--dx),105vh) rotate(var(--rot));opacity:.8}}

@media (max-width:720px){
  body{font-size:17px}
  .hud-in{gap:8px;padding:6px 10px}
  .site-link{display:none}
  .me{padding-right:4px}.me b{display:none}
  .lvl-txt small{font-size:.75rem}
  .pill{height:44px;padding:0 10px;font-size:1rem}.pill.sound{width:44px}
  .bands{grid-template-columns:1fr}
  .band{flex-direction:row;justify-content:flex-start;gap:14px;padding:16px 18px;border-bottom-width:4px;border-left-width:12px;border-color:var(--line) var(--line) var(--line) var(--c)}
  .band .em{font-size:2.8rem}
  .band small{margin-left:auto}
  .avatars{grid-template-columns:repeat(4,1fr)}
  .owl{font-size:3.6rem}.bubble{font-size:1.1rem}
  .games{grid-template-columns:1fr 1fr;gap:12px}
  .game{padding:16px 10px 14px;border-radius:26px}
  .game .disc{width:80px;height:80px;font-size:2.7rem}
  .game h3{font-size:1.15rem}.game p{display:none}.game .play{width:34px;height:34px;top:10px;right:10px;font-size:.9rem}
  .opts{gap:12px}
  .opt{min-height:96px;border-radius:24px}
  .dots span{width:26px;height:26px;font-size:.8rem;border-width:2px}
  .cheer-in{gap:10px}.cheer .btn{width:100%}
}
@media (max-width:380px){.games{grid-template-columns:1fr}.opts{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ===== homework & Lab code ===== */
.hw-banner{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:#fff;border:4px solid var(--gold);border-radius:30px;padding:14px 18px;margin:0 auto 18px;max-width:760px;box-shadow:0 8px 0 var(--gold-dk),0 18px 30px -18px rgba(0,0,0,.3);animation:pop .5s}
.hw-ico{width:76px;height:76px;border-radius:50%;display:grid;place-items:center;font-size:2.6rem;background:radial-gradient(circle at 35% 30%,#fff 0,color-mix(in srgb,var(--c) 30%,#fff) 70%)}
.hw-txt{flex:1;min-width:150px;display:flex;flex-direction:column}
.hw-txt small{font-family:var(--fun);font-weight:600;color:#b45309;font-size:1rem}
.hw-txt b{font-family:var(--fun);font-weight:700;font-size:1.7rem}
.hw-banner .btn{flex:none}
.hw-done-chip{text-align:center;font-family:var(--fun);font-weight:600;color:var(--mint-dk);background:#e6fbf2;border-radius:999px;padding:.5rem 1.2rem;width:fit-content;margin:0 auto 16px}
.game.is-hw{border-color:var(--gold);box-shadow:0 8px 0 var(--gold-dk),0 18px 30px -18px rgba(30,41,59,.35)}
.hw-badge{position:absolute;top:14px;left:14px;font-family:var(--fun);font-weight:600;font-size:.85rem;background:var(--gold);color:#3b2a00;border-radius:999px;padding:.2rem .7rem;box-shadow:0 3px 0 var(--gold-dk)}
.hw-done{display:inline-block;font-family:var(--fun);font-weight:700;font-size:1.25rem;color:var(--mint-dk);background:#e6fbf2;border:3px solid #9be3bf;border-radius:22px;padding:.6rem 1.2rem;margin:8px 0;animation:pop .5s}
.notice{font-family:var(--fun);font-weight:600;color:#b45309;background:#fff4d1;border-radius:18px;padding:.6rem 1rem;max-width:520px;margin:0 auto 10px}
.code-box{margin-top:22px}
.code-toggle,.code-link button{font-family:var(--fun);font-weight:600;font-size:1.05rem;color:var(--sky-dk);background:#eef8ff;border:2px solid #cde8fb;border-radius:999px;padding:.6rem 1.2rem;min-height:48px}
.code-link{margin-top:18px}
#codeForm{display:flex;flex-direction:column;align-items:center;gap:12px}
#codeForm[hidden]{display:none}
.name-box.code{font-family:ui-monospace,Menlo,monospace;letter-spacing:.12em;text-transform:uppercase;width:min(320px,100%)}