:root{
  --bg:#fff7e6; --ink:#2b2350; --ink2:#5b5481; --card:#ffffff; --line:#e9e2f7;
  --purple:#7c4dff; --pink:#ff5fa2; --orange:#ff9f1c; --green:#2ec27e; --blue:#2e9cff; --red:#ff4d5e; --yellow:#ffd23f;
  --radius:22px; --shadow:0 6px 0 rgba(43,35,80,.14);
  --font:'Fredoka','Trebuchet MS','Comic Sans MS',system-ui,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{--bg:#1d1838;--ink:#fff6e0;--ink2:#c9c0ee;--card:#2c2552;--line:#40376e;--shadow:0 6px 0 rgba(0,0,0,.35)}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);font-size:18px;line-height:1.4;min-height:100vh;
  background-image:radial-gradient(circle at 12% 18%,rgba(124,77,255,.12) 0 90px,transparent 91px),radial-gradient(circle at 88% 8%,rgba(255,95,162,.14) 0 120px,transparent 121px),radial-gradient(circle at 80% 90%,rgba(46,156,255,.12) 0 150px,transparent 151px);
  background-attachment:fixed}
button{font-family:inherit;font-size:inherit;color:inherit;cursor:pointer}
h1,h2,h3{margin:.2em 0;line-height:1.1}
#confetti{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:99}

.topbar{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 18px;position:sticky;top:0;z-index:20;background:var(--purple);color:#fff;box-shadow:0 4px 0 rgba(0,0,0,.15);flex-wrap:wrap}
.logo{color:#fff;text-decoration:none;font-weight:700;font-size:1.5rem}
.logo-emoji{display:inline-block;animation:wiggle 2.5s infinite}
.hud{display:flex;gap:8px;align-items:center}
.pill{background:rgba(255,255,255,.2);border:0;border-radius:99px;padding:4px 14px;font-weight:600;color:#fff}
.btn-mute{cursor:pointer}

#app{max-width:1000px;margin:0 auto;padding:18px 14px 40px}
.footer{text-align:center;color:var(--ink2);font-size:.85rem;padding:0 14px 30px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:16px;padding:10px 20px;font-weight:600;background:var(--purple);color:#fff;box-shadow:0 5px 0 rgba(0,0,0,.22);transition:transform .08s,box-shadow .08s;text-decoration:none}
.btn:hover{filter:brightness(1.07)}
.btn:active{transform:translateY(4px);box-shadow:0 1px 0 rgba(0,0,0,.22)}
.btn:disabled{opacity:.4;cursor:not-allowed;filter:grayscale(.5)}
.btn.green{background:var(--green)} .btn.pink{background:var(--pink)} .btn.orange{background:var(--orange)} .btn.blue{background:var(--blue)} .btn.red{background:var(--red)}
.btn.ghost{background:var(--card);color:var(--ink);border:3px solid var(--line);box-shadow:var(--shadow)}
.btn.big{font-size:1.3rem;padding:14px 30px}
.btn.small{padding:6px 14px;font-size:.9rem}

.card{background:var(--card);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);border:3px solid var(--line)}

/* hub */
.hero{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;margin-bottom:18px}
.hero h1{font-size:clamp(2rem,6vw,3.2rem)}
.hero p{margin:.4em 0;color:var(--ink2)}
.hero .big-emoji{font-size:clamp(4rem,14vw,7rem);animation:bob 3s ease-in-out infinite}
.namebox{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:8px}
.namebox input{font:inherit;padding:8px 14px;border-radius:14px;border:3px solid var(--line);background:var(--card);color:var(--ink);width:min(260px,100%)}
.progress{height:18px;border-radius:99px;background:var(--line);overflow:hidden;margin:8px 0 18px}
.progress>i{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--yellow));transition:width .6s}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.tile{position:relative;text-align:left;border:0;border-radius:var(--radius);padding:16px;color:#fff;box-shadow:0 8px 0 rgba(0,0,0,.2);transition:transform .12s;min-height:200px;display:flex;flex-direction:column;gap:4px}
.tile:hover{transform:translateY(-4px) rotate(-1deg)}
.tile .num{position:absolute;top:10px;right:14px;font-size:.9rem;opacity:.85;font-weight:700}
.tile .emo{font-size:3.2rem;line-height:1}
.tile h3{font-size:1.35rem}
.tile .concept{font-size:.9rem;opacity:.95}
.tile .tstars{margin-top:auto;font-size:1.3rem;letter-spacing:2px}
.tile .badge-done{position:absolute;top:8px;left:10px;background:#fff;color:var(--green);border-radius:99px;padding:0 10px;font-size:.8rem;font-weight:700}
.grownups{margin-top:26px;font-size:.95rem}
.grownups h3{margin-bottom:6px}
.grownups a{color:var(--purple);font-weight:600}

/* certificate */
.cert{margin-top:24px;text-align:center;border:6px double var(--orange);background:linear-gradient(135deg,#fffbe8,#ffe9b8);color:#4a3200;border-radius:var(--radius);padding:24px}
.cert h2{font-size:2rem}.cert .nm{font-size:2.2rem;font-weight:700;color:#b04a00;margin:6px 0}

/* game shell */
.gamehead{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.gamehead h2{flex:1;font-size:1.7rem}
.coach{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px}
.coach .face{font-size:2.6rem;animation:bob 3s ease-in-out infinite;flex:none}
.coach .bubble{position:relative;background:var(--card);border:3px solid var(--line);border-radius:18px;padding:10px 16px;box-shadow:var(--shadow);flex:1;min-height:56px;display:flex;align-items:center}
.coach .bubble.good{border-color:var(--green)} .coach .bubble.bad{border-color:var(--red)}
.coach .bubble::before{content:"";position:absolute;left:-12px;top:20px;width:18px;height:18px;background:inherit;border:inherit;border-right:0;border-top:0;transform:rotate(45deg);border-radius:0 0 0 4px;background:var(--card)}
.stage{position:relative;background:var(--card);border:3px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);min-height:380px;overflow:hidden;user-select:none;-webkit-user-select:none}
.stage.plain{user-select:text}

.overlay{position:fixed;inset:0;background:rgba(30,20,60,.6);display:flex;align-items:center;justify-content:center;padding:14px;z-index:50;animation:fade .2s}
.modal{background:var(--card);border-radius:28px;padding:24px;max-width:560px;width:100%;text-align:center;box-shadow:0 10px 0 rgba(0,0,0,.25);animation:pop .3s;max-height:92vh;overflow:auto}
.modal h2{font-size:2rem}
.modal .emo{font-size:4rem}
.modal ul{text-align:left;padding-left:1.2em;margin:.6em 0}
.modal li{margin:.4em 0}
.modal .row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.starline{font-size:2.6rem;letter-spacing:6px}

.hearts{font-size:1.4rem;letter-spacing:2px}
.hud2{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;flex-wrap:wrap;font-weight:600}
.chips{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.chip{background:var(--bg);border:3px solid var(--line);border-radius:16px;padding:10px 16px;font-weight:600;box-shadow:var(--shadow)}
.chip:hover{border-color:var(--purple)}
.chip:disabled{opacity:.5}
.chip.right{background:#c8f5de;border-color:var(--green);color:#0b5d36}
.chip.wrong{background:#ffd3d8;border-color:var(--red);color:#7a0d1a}

code,.mono{font-family:Consolas,'Courier New',monospace}
.term{background:#14102b;color:#8cffb0;border-radius:14px;padding:10px 14px;font-family:Consolas,'Courier New',monospace;font-size:.95rem;min-height:70px;max-height:130px;overflow:auto}

/* game 1 */
.arena{position:relative;height:330px;border-radius:18px;background:repeating-linear-gradient(45deg,rgba(124,77,255,.07) 0 14px,transparent 14px 28px);overflow:hidden}
.fitem{position:absolute;width:92px;text-align:center;font-size:.8rem;font-weight:600;background:var(--bg);border:3px solid var(--line);border-radius:16px;padding:6px 2px;box-shadow:var(--shadow);cursor:pointer;line-height:1.1}
.fitem .e{font-size:2.2rem;display:block}
.chest{position:absolute;bottom:8px;left:50%;transform:translateX(-50%);text-align:center;font-weight:700;pointer-events:none}
.chest .e{font-size:4rem;display:block;transition:transform .15s}
.chest.bump .e{transform:scale(1.3)}

/* game 2 */
.cwrap{display:grid;grid-template-columns:1fr 200px;gap:12px}
.cwrap canvas{width:100%;border-radius:18px;background:linear-gradient(#bfe7ff,#e9f7ff);touch-action:none;display:block}
.commitlog{background:#14102b;color:#8cffb0;border-radius:14px;padding:10px;font-family:Consolas,monospace;font-size:.82rem;min-height:120px}
.commitlog div{margin:6px 0;animation:pop .3s}
.commitlog small{color:#ffe08c}

/* game 3 */
.graphbox svg{width:100%;height:auto;background:linear-gradient(#f2eaff,#ffffff);border-radius:16px;border:3px solid var(--line);display:block}
@media (prefers-color-scheme: dark){.graphbox svg{background:linear-gradient(#352c63,#2c2552)}}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin:12px 0}
.steps{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;font-size:.85rem;margin-bottom:8px}
.steps span{padding:3px 10px;border-radius:99px;background:var(--line)}
.steps span.on{background:var(--yellow);color:#4a3200;font-weight:700}
.steps span.done{background:var(--green);color:#fff}

/* game 4 */
.track{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;position:relative;margin:10px 0 36px}
.zone{text-align:center;background:var(--bg);border:3px dashed var(--line);border-radius:16px;padding:10px 4px;font-weight:600;font-size:.85rem}
.zone .e{font-size:2.2rem;display:block}
.zone.lit{border-style:solid;border-color:var(--green);background:#d6f8e6;color:#0b5d36}
.parcel{position:absolute;bottom:-36px;font-size:2.4rem;transition:left .6s cubic-bezier(.5,-0.4,.4,1.4);width:25%;text-align:center;pointer-events:none}
.cmds{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.cmd{text-align:left;padding:8px 14px;border-radius:14px;border:3px solid var(--line);background:var(--bg);font-family:Consolas,monospace;font-weight:700;box-shadow:var(--shadow)}
.cmd small{display:block;font-family:var(--font);font-weight:500;font-size:.75rem;color:var(--ink2)}
.cmd:hover{border-color:var(--purple)}
.shake{animation:shake .4s}

/* game 5 */
.belt{position:relative;height:130px;background:repeating-linear-gradient(90deg,#d9d2ee 0 20px,#cbc2e8 20px 40px);border-radius:16px;overflow:hidden;margin:8px 0}
.issue{position:absolute;top:14px;left:100%;width:min(340px,80%);background:#fff;color:#2b2350;border:3px solid var(--purple);border-radius:14px;padding:8px 12px;box-shadow:var(--shadow);font-weight:500}
.issue b{color:var(--purple);font-size:.85rem}
.bins{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.bin{border:0;border-radius:16px;padding:12px 4px;color:#fff;font-weight:700;box-shadow:0 5px 0 rgba(0,0,0,.2)}
.bin .e{font-size:1.8rem;display:block}
.bin:active{transform:translateY(3px)}
.timebar{height:10px;border-radius:99px;background:var(--line);overflow:hidden}
.timebar>i{display:block;height:100%;background:var(--orange)}

/* game 6 */
.diff{font-family:Consolas,monospace;border-radius:14px;overflow:hidden;border:3px solid var(--line);font-size:.95rem}
.dline{display:flex;gap:10px;padding:7px 12px;background:#e6ffed;color:#14532d;cursor:pointer;border-bottom:1px solid rgba(0,0,0,.06);align-items:center}
.dline:hover{background:#c9f7d7}
.dline .pl{font-weight:700}
.dline.found{background:#ffe0e3;color:#7a0d1a}
.dline.okline{background:#e8e8f0;color:#555;text-decoration:line-through}
.dline.fixed{background:#bff0d0}
.dcom{margin-left:auto;font-family:var(--font);font-size:.8rem;background:#fff;border:2px solid var(--red);border-radius:10px;padding:2px 8px;color:#7a0d1a}
.prhead{display:flex;gap:10px;align-items:center;margin-bottom:10px;flex-wrap:wrap}
.prhead .tag{background:var(--green);color:#fff;border-radius:99px;padding:2px 12px;font-size:.85rem;font-weight:700}

/* game 7 */
.editor{font-family:Consolas,monospace;background:#14102b;border-radius:14px;padding:6px;color:#e9e4ff;font-size:.95rem}
.eline{display:flex;gap:10px;padding:6px 10px;border-radius:8px;cursor:pointer;align-items:center}
.eline:hover{background:rgba(255,255,255,.1)}
.eline .ln{color:#7a72aa;width:1.5em;text-align:right}
.eline.marker{color:#ffd23f;background:rgba(255,210,63,.12)}
.eline.mine{color:#8cd6ff}.eline.theirs{color:#ffb3d9}
.eline.gone{opacity:.25;text-decoration:line-through}
.chat{display:flex;gap:10px;flex-direction:column;margin-bottom:10px}
.chat .msg{background:var(--bg);border:3px solid var(--line);border-radius:16px;padding:6px 12px;max-width:90%}
.chat .msg.l{align-self:flex-start}.chat .msg.r{align-self:flex-end;background:#e4dcff;color:#2b2350}

/* game 8 */
.zones{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.dz{border:4px dashed var(--line);border-radius:18px;text-align:center;padding:14px 8px;font-weight:700;min-height:130px;transition:all .15s}
.dz .e{font-size:3rem;display:block}
.dz.public{background:rgba(46,156,255,.12)} .dz.vault{background:rgba(255,77,94,.1)}
.dz.hot{transform:scale(1.04);border-color:var(--purple);border-style:solid}
.dz small{display:block;font-weight:500;color:var(--ink2)}
.tray{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;min-height:90px;padding:8px}
.drag{touch-action:none;cursor:grab;background:var(--bg);border:3px solid var(--line);border-radius:14px;padding:6px 12px;font-weight:600;box-shadow:var(--shadow);font-size:.95rem;text-align:center}
.drag .e{font-size:1.7rem;display:block}
.drag.right{border-color:var(--green);background:#c8f5de;color:#0b5d36}
.drag.flying{position:fixed;z-index:60;pointer-events:none;cursor:grabbing;transform:rotate(-4deg) scale(1.1)}

@keyframes wiggle{0%,100%{transform:rotate(-8deg)}50%{transform:rotate(8deg)}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes pop{from{transform:scale(.7);opacity:0}to{transform:scale(1);opacity:1}}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-10px)}40%{transform:translateX(10px)}60%{transform:translateX(-6px)}80%{transform:translateX(6px)}}
@media (max-width:640px){
  body{font-size:16px}
  .hero{grid-template-columns:1fr}.hero .big-emoji{display:none}
  .cwrap{grid-template-columns:1fr}
  .bins{grid-template-columns:repeat(2,1fr)}
  .zone{font-size:.7rem}.zone .e{font-size:1.6rem}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media print{body *{visibility:hidden}.cert,.cert *{visibility:visible}.cert{position:absolute;left:0;top:0;width:100%}}