/* Galactic Object Factory: the gamified JavaScript Classes lesson. Dark space theme, big type for screen sharing. */
.jsc-wrap{padding-bottom:12px}
.jc{--bg:#0B0F19;--panel:rgba(255,255,255,.06);--line:rgba(160,190,255,.2);--coral:#FF5A43;--cyan:#00F0FF;--star:#F4F7FF;--mute:#a9b6dc;--ok:#3ddc97;--bad:#ff6b6b;--code:clamp(16px,1.5vw + 6px,22px);position:relative;color:var(--star);font-size:18px;line-height:1.55;border-radius:26px;padding:clamp(12px,2.4vw,26px);background:radial-gradient(90% 60% at 80% -10%,rgba(0,240,255,.14),transparent 60%),radial-gradient(70% 50% at 0% 10%,rgba(255,90,67,.16),transparent 60%),var(--bg);box-shadow:0 0 0 2px rgba(0,240,255,.25),0 40px 80px -40px rgba(0,240,255,.45);overflow:hidden;isolation:isolate}
.jc::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(2px 2px at 12% 22%,#fff9,transparent),radial-gradient(1.5px 1.5px at 38% 8%,#fff8,transparent),radial-gradient(2px 2px at 64% 30%,#fff7,transparent),radial-gradient(1.5px 1.5px at 88% 12%,#fff9,transparent),radial-gradient(1.5px 1.5px at 24% 70%,#fff6,transparent),radial-gradient(2px 2px at 76% 82%,#fff7,transparent);animation:jc-twinkle 6s ease-in-out infinite alternate}
@keyframes jc-twinkle{to{opacity:.55}}
.jc *{box-sizing:border-box}
.jc h2,.jc h3,.jc h4{font-family:var(--serif);font-weight:500;margin:0;color:#fff}
.jc code{font:700 .92em ui-monospace,SFMono-Regular,Consolas,monospace;padding:1px 7px;border-radius:7px;background:rgba(0,240,255,.14);color:var(--cyan)}
.jc button{font-family:inherit}
.jc.jc-fs{position:fixed;inset:0;z-index:9990;border-radius:0;overflow:auto;box-shadow:none;max-height:none}
/* HUD */
.jc-hud{display:flex;gap:14px 22px;align-items:center;flex-wrap:wrap;padding:10px 14px;border-radius:20px;background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.jc-brand{display:flex;gap:10px;align-items:center}.jc-logo{font-size:34px;filter:drop-shadow(0 0 12px var(--cyan))}.jc-brand small{display:block;font:800 11px var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}.jc-brand b{font:500 22px var(--serif)}
.jc-level{display:grid;gap:4px;min-width:210px;flex:1 1 210px}.jc-rank{font:800 15px var(--sans);letter-spacing:.04em;color:var(--coral)}
.jc-xpbar{height:12px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}.jc-xpbar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--coral),#ffb86b,var(--cyan));box-shadow:0 0 14px var(--coral);transition:width .6s}
.jc-xp{font-size:14px;color:var(--mute)}
.jc-badges{display:flex;gap:6px;flex-wrap:wrap}.jc-badge{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.07);border:1px dashed var(--line);font-size:19px;color:var(--mute)}.jc-badge.on{background:linear-gradient(160deg,#ffd166,#ff9f1c);border:0;box-shadow:0 0 14px rgba(255,176,32,.7)}
.jc-tools{display:flex;gap:8px;align-items:center;margin-left:auto}
.jc-teacher{display:flex;gap:8px;align-items:center;padding:7px 12px;border-radius:99px;background:rgba(255,255,255,.08);font-size:14px;font-weight:700;cursor:pointer}.jc-teacher input{width:18px;height:18px;accent-color:var(--coral)}
.jc-ico{width:42px;height:42px;border-radius:13px;border:1px solid var(--line);background:rgba(255,255,255,.08);color:#fff;font-size:18px;cursor:pointer}.jc-ico:hover{background:rgba(255,255,255,.18)}
/* progress track */
.jc-track{display:flex;gap:6px;margin:16px 0 8px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:thin;scrollbar-color:#3a4a7a transparent}
.jc-node{flex:1 0 82px;display:grid;gap:5px;justify-items:center;background:none;border:0;color:var(--mute);cursor:pointer;position:relative;padding:0}
.jc-node::before{content:"";position:absolute;top:21px;left:-50%;width:100%;height:3px;background:rgba(255,255,255,.14);z-index:0}.jc-node:first-child::before{display:none}.jc-node.done::before,.jc-node.cur::before{background:linear-gradient(90deg,var(--cyan),var(--coral))}
.jc-dot{position:relative;z-index:1;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:#18203a;border:2px solid var(--line);font-size:20px;transition:transform .2s}
.jc-node small{font:700 12.5px var(--sans)}
.jc-node.cur .jc-dot{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(0,240,255,.2),0 0 22px rgba(0,240,255,.6);transform:scale(1.1)}.jc-node.cur{color:#fff}
.jc-node.done .jc-dot{background:linear-gradient(160deg,var(--ok),#1aa36b);border-color:transparent;color:#05281a;font-weight:900}
.jc-node.locked{cursor:not-allowed;opacity:.5}
/* stage */
.jc-stage{display:grid;gap:16px;grid-template-columns:minmax(0,1fr)}.jc-ide,.jc-edhost,.jc-edhost .ce,.jc-edhost .cm-editor{min-width:0;max-width:100%}.jc-edhost .cm-scroller{overflow:auto}
.jc-modhead h2{font-size:clamp(28px,4vw,42px);line-height:1.1}.jc-kicker{margin:0 0 4px;font:800 12.5px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.jc-story{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px}.jc-story p{margin:0;padding:14px 18px;border-radius:18px;background:var(--panel);border:1px solid var(--line);font-size:19px}.jc-story .jc-concept{border-color:rgba(255,90,67,.5);background:rgba(255,90,67,.1)}
.jc-widget{padding:clamp(12px,2vw,22px);border-radius:22px;background:rgba(8,12,28,.7);border:1px solid var(--line);min-width:0}
.jc-loading,.jc-err{color:var(--mute);margin:0}
.jc-notes{padding:14px 18px;border-radius:18px;background:rgba(255,200,60,.1);border:1px dashed rgba(255,200,60,.6)}.jc-notes ul{margin:8px 0;padding-left:22px}.jc-notes li{margin:4px 0}
.jc-foot{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}.jc-donenote{margin:0;color:var(--mute);font-size:16px;flex:1;text-align:center}
.jc-next:disabled{opacity:.45;cursor:not-allowed}.jc-next.ready{animation:jc-pulse 1.4s ease-in-out infinite}
@keyframes jc-pulse{50%{box-shadow:0 0 0 8px rgba(255,90,67,.28)}}
.jc .btn-ghost{color:#fff;border-color:var(--line);background:rgba(255,255,255,.06)}
/* buttons and bits */
.jc-bigbtn{padding:14px 22px;border-radius:16px;border:0;background:linear-gradient(160deg,#ff7a63,var(--coral));color:#fff;font:800 clamp(16px,1.2vw + 8px,20px) var(--sans);cursor:pointer;box-shadow:0 6px 0 #b83a27,0 16px 28px -12px rgba(255,90,67,.7);transition:transform .1s,box-shadow .1s}
.jc-bigbtn:active:not(:disabled){transform:translateY(4px);box-shadow:0 2px 0 #b83a27}.jc-bigbtn:disabled{opacity:.5;cursor:default;box-shadow:none}
.jc-bigbtn.alt{background:linear-gradient(160deg,#35e6ff,#00b8d4);color:#04222a;box-shadow:0 6px 0 #00798c,0 16px 28px -12px rgba(0,240,255,.6)}.jc-bigbtn.alt2{background:linear-gradient(160deg,#ffd166,#ff9f1c);color:#3a2300;box-shadow:0 6px 0 #b36b00}
.jc-bigbtn.ready{animation:jc-pulse 1.2s ease-in-out infinite}
.jc-btnrow{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.jc-msg{margin:0;min-height:1.5em;font-weight:700;color:#ffe9a8}
.jc-tasks{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:4px;font-size:17px;color:var(--mute)}.jc-tasks li.ok{color:var(--ok)}
.jc-in{height:46px;padding:0 14px;border-radius:12px;border:2px solid var(--line);background:#0e1530;color:#fff;font:600 18px ui-monospace,Consolas,monospace;min-width:0;width:150px}.jc-in.wide{width:min(320px,100%)}.jc-in:focus{outline:0;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(0,240,255,.2)}
.jc-rule{padding:10px 16px;border-radius:14px;background:rgba(255,90,67,.12);border:1px solid rgba(255,90,67,.5);font-weight:700}
.jc-instr{margin:10px 0}
/* code */
.jc-code{margin:0;padding:12px 4px;border-radius:16px;background:#070b17;border:1px solid var(--line);font:600 var(--code)/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;color:#e6ecff;overflow-x:auto;white-space:pre}
.jc-code .ln{display:block;padding:0 14px;border-left:4px solid transparent;transition:background .25s,border-color .25s}.jc-code .ln.lit{background:rgba(0,240,255,.18);border-left-color:var(--cyan)}
.jc-code i{font-style:normal}.jc-code .k{color:#ff8ad8}.jc-code .s{color:#9ef0a4}.jc-code .t{color:#ffd166;font-weight:800}
.jc-code.bad{border-color:rgba(255,107,107,.7)}
.jc-code .tok,.jc-code b.tok{font-weight:800;color:var(--cyan);padding:0 4px;border-radius:6px;background:rgba(0,240,255,.14)}.jc-code .ctorkw.bad{color:#ff8a8a;background:rgba(255,107,107,.2);text-decoration:wrap}
.pile{max-height:300px;overflow:auto;min-height:60px}
.drop{animation:jc-drop .4s both}@keyframes jc-drop{from{opacity:0;transform:translateX(-12px)}}
.jc-meter{margin:8px 0;font-size:16px;color:var(--mute)}.jc-meter b{color:var(--coral)}
.jc-console{margin:10px 0 0;padding:12px 16px;border-radius:14px;background:#050813;border:1px solid var(--line);color:#7cffb2;font:600 clamp(15px,1.2vw + 5px,19px)/1.55 ui-monospace,Consolas,monospace;white-space:pre-wrap;min-height:3.2em;max-width:100%;overflow:auto}.jc-console.small{font-size:15px;min-height:2.4em}.jc-console.err{color:#ff9e9e}
.jc-alarm{margin-top:10px;padding:12px 16px;border-radius:14px;background:rgba(255,60,60,.16);border:2px solid #ff4d4d;animation:jc-alarm 1s ease-in-out 3}@keyframes jc-alarm{50%{background:rgba(255,60,60,.4)}}
.jc-alarm[hidden]{display:none}
.jc-fly{position:fixed;z-index:9995;padding:6px 12px;border-radius:99px;background:linear-gradient(160deg,#ffd166,#ff9f1c);color:#3a2300;font:800 17px ui-monospace,Consolas,monospace;pointer-events:none;box-shadow:0 0 18px rgba(255,176,32,.9);white-space:nowrap}.jc-fly.good{background:linear-gradient(160deg,#35e6ff,#00b8d4);color:#04222a;box-shadow:0 0 18px var(--cyan)}.jc-fly.lost{background:#ff6b6b;color:#fff}
.jc-shake{animation:jc-shake .45s}@keyframes jc-shake{20%,60%{transform:translateX(-7px)}40%,80%{transform:translateX(7px)}}
/* two-column layouts */
.jc-split{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,360px),1fr));gap:16px;align-items:start}
.jc-side{padding:14px;border-radius:18px;background:var(--panel);border:1px solid var(--line);min-width:0;display:grid;gap:10px;align-content:start}.jc-side h3{font-size:24px}
.jc-side.bad{border-color:rgba(255,107,107,.5)}.jc-side.good{border-color:rgba(61,220,151,.5)}
.jc-deck{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.jc-planet{display:grid;gap:2px;padding:10px 12px;border-radius:14px;background:linear-gradient(160deg,#1c2a55,#13203f);border:1px solid var(--line)}.jc-planet small{color:var(--mute);font-size:14px}.jc-planet span{color:var(--cyan);font-size:14px;font-weight:700}
.pop{animation:jc-pop .5s cubic-bezier(.2,.9,.3,1.4) both}@keyframes jc-pop{from{opacity:0;transform:scale(.4) rotate(-8deg)}}
.jc-crowd{display:flex;flex-wrap:wrap;gap:4px}.jc-crowd i{width:14px;height:14px;border-radius:50%;background:hsl(var(--h) 90% 60%);animation:jc-pop .4s both;box-shadow:0 0 8px hsl(var(--h) 90% 60%)}
.jc-quick{margin-top:16px;padding:14px;border-radius:18px;background:var(--panel);border:1px solid var(--line)}.jc-quick h3{font-size:24px;margin-bottom:8px}
.jc-sort{display:grid;gap:8px}.jc-sortrow{display:flex;gap:8px;flex-wrap:wrap;align-items:center;padding:8px 10px;border-radius:14px;background:rgba(255,255,255,.04);border:2px solid transparent}.jc-sortrow.ok{border-color:var(--ok);background:rgba(61,220,151,.12)}.jc-sortrow.bad{border-color:var(--bad)}
.jc-sortlabel{flex:1 1 200px;font-weight:700}.jc-pick{padding:9px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.08);color:#fff;font:700 16px var(--sans);cursor:pointer}.jc-pick:hover{background:rgba(0,240,255,.2)}
.jc-sortrow.ok .jc-pick{pointer-events:none;opacity:.5}
/* cookie cutter */
.jc-tiles{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0}.jc-tile{padding:12px 20px;border-radius:14px;border:2px dashed var(--cyan);background:rgba(0,240,255,.1);color:#fff;font:800 clamp(18px,1.5vw + 8px,24px) ui-monospace,Consolas,monospace;cursor:grab}.jc-tile.sel{background:var(--cyan);color:#04222a}.jc-tile:disabled{opacity:.35;cursor:default}
.jc-frame{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:18px;border-radius:20px;border:3px dashed var(--line);background:rgba(255,255,255,.04);font:800 clamp(18px,1.5vw + 8px,24px) ui-monospace,Consolas,monospace;transition:.3s}.jc-frame.done{border:3px solid var(--ok);box-shadow:0 0 28px rgba(61,220,151,.45)}
.jc-slot{min-width:130px;padding:12px 16px;border-radius:12px;border:2px dashed var(--coral);background:rgba(255,90,67,.08);color:var(--mute);font:inherit;cursor:pointer}.jc-slot.ok{border-style:solid;border-color:var(--ok);color:#fff;background:rgba(61,220,151,.16)}
.jc-braces{color:var(--mute)}.jc-codeview{margin:10px 0}
.jc-oven{margin-top:12px;display:grid;gap:10px;padding:14px;border-radius:18px;background:var(--panel);border:1px solid var(--line)}.jc-oven[hidden]{display:none}.jc-oven h3{font-size:22px}
.jc-toppings{display:grid;gap:8px}.jc-toprow{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.jc-toprow b{min-width:72px;color:var(--cyan)}
.jc-cookies{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}.jc-cookie{display:grid;gap:3px;padding:12px;border-radius:50% 50% 18px 18px/38% 38% 18px 18px;text-align:center;background:radial-gradient(circle at 30% 25%,#f6d28b,#c98f3c);color:#3a2300;box-shadow:0 8px 0 #8a5a1c}.jc-cookie .cut{font-size:30px}.jc-cookie small{font-size:14px}.jc-cookie code{background:rgba(0,0,0,.15);color:#3a2300;justify-self:center}
/* this lab and objects */
.jc-toggle{margin-bottom:10px}
.jc-switch{display:flex;gap:10px;align-items:center;cursor:pointer;font-weight:700;margin-top:6px}.jc-switch input{width:22px;height:22px;accent-color:var(--coral)}.jc-switch.big{padding:12px 18px;border-radius:16px;background:var(--panel);border:1px solid var(--line);font-size:20px;width:max-content;max-width:100%}
.jc-objs{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:12px;margin:12px 0;align-items:start}.jc-objwrap{display:grid;gap:8px}
.jc-objcard{display:grid;gap:8px;padding:14px;border-radius:18px;background:linear-gradient(160deg,#18264d,#101a38);border:2px solid var(--line);transition:.3s}.jc-objcard h4{font:800 18px ui-monospace,Consolas,monospace;color:var(--cyan)}
.jc-objcard.changed{border-color:var(--coral);box-shadow:0 0 22px rgba(255,90,67,.45)}.jc-objcard.same{border-color:rgba(61,220,151,.4)}
.jc-badgecard{padding:12px;border-radius:14px;background:#0a1124;border:2px dashed var(--line);font-size:20px}.jc-badgecard.ok{border:2px solid var(--ok);box-shadow:0 0 18px rgba(61,220,151,.5)}.jc-badgecard.bad{border:2px solid var(--bad);color:#ffb3b3}
.jc-mem{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;align-items:baseline}.jc-mem small{color:var(--mute)}.jc-mem b{font-size:21px}.jc-mem em{font-style:normal;color:#cfe}
.jc-tag{justify-self:start;font-size:14px;font-weight:800;padding:3px 10px;border-radius:99px;background:rgba(255,255,255,.1)}
.jc-row{display:flex;gap:12px;flex-wrap:wrap}.jc-fld{display:grid;gap:4px}.jc-fld b{font:700 15px ui-monospace,Consolas,monospace;color:var(--cyan)}
.jc-trace{display:grid;gap:6px;margin:6px 0 14px;padding:12px 16px;border-radius:14px;background:#050813;border:1px solid var(--line);min-height:3em}.jc-trace .step{font:600 clamp(15px,1.2vw + 5px,19px) ui-monospace,Consolas,monospace}
.jc-ta{width:100%;padding:12px;border-radius:14px;background:#070b17;border:1px solid var(--line);color:#e6ecff;font:600 var(--code)/1.6 ui-monospace,Consolas,monospace;tab-size:2;resize:vertical}
.jc-methods h3{margin:14px 0 8px;font-size:24px}
/* guided activity */
.jc-steptabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}.jc-steptab{width:46px;height:46px;border-radius:14px;border:2px solid var(--line);background:rgba(255,255,255,.07);color:#fff;font:800 18px var(--sans);cursor:pointer}.jc-steptab.cur{border-color:var(--cyan);background:rgba(0,240,255,.2)}.jc-steptab.done{background:var(--ok);color:#05281a;border-color:transparent}.jc-steptab.locked{opacity:.4;cursor:not-allowed}
.jc-idegrid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:16px;align-items:start}
.jc-pane{display:grid;gap:10px;min-width:0}.jc-instr small{color:var(--cyan);font:800 12.5px var(--sans);letter-spacing:.14em;text-transform:uppercase}.jc-instr h3{font-size:26px;margin:2px 0 6px}.jc-instr p{margin:0;font-size:19px}
.jc-hintbox{padding:10px 14px;border-radius:12px;background:rgba(255,200,60,.12);border:1px solid rgba(255,200,60,.55)}.jc-hintbox[hidden]{display:none}
.jc-chips{display:flex;gap:6px;flex-wrap:wrap}.jc-chip{padding:7px 12px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.08);color:#dff;font:600 14px ui-monospace,Consolas,monospace;cursor:pointer;max-width:100%;text-align:left}.jc-chip:hover{background:rgba(0,240,255,.2)}
.jc-edhost{height:clamp(300px,50vh,520px);border-radius:16px}.jc-edhost .ce{height:100%}.jc-edhost .ce-plain{min-height:300px;font-size:var(--code)}
.jc-status{min-height:1.5em;padding:0;font-weight:700}.jc-status.ok,.jc-status.bad,.jc-status.info{padding:10px 14px;border-radius:12px}.jc-status.ok{background:rgba(61,220,151,.16);color:#b8ffdc}.jc-status.bad{background:rgba(255,107,107,.16);color:#ffd0d0}.jc-status.info{background:rgba(0,240,255,.14)}
.jc-browser{border-radius:14px;overflow:hidden;background:#fff;color:#16203a;border:1px solid var(--line)}.jc-bar{display:flex;gap:6px;align-items:center;padding:8px 12px;background:#e7ebf5;font-size:13px;color:#566}.jc-bar i{width:11px;height:11px;border-radius:50%;background:#f66}.jc-bar i:nth-child(2){background:#fb4}.jc-bar i:nth-child(3){background:#4c8}.jc-bar span{margin-left:8px}
.jc-preview{padding:14px 18px;min-height:240px;max-height:420px;overflow:auto;font:18px/1.5 system-ui,sans-serif}.jc-preview h1{font:800 26px system-ui;margin:0 0 4px;color:#16203a}.jc-preview p{margin:6px 0}.jc-preview button{margin:8px 0 12px;padding:10px 18px;border-radius:12px;border:0;background:var(--coral);color:#fff;font:700 18px system-ui;cursor:pointer}
.jc-preview div[id^=card]{margin:8px 0;border-radius:14px}.jc-preview div[id^=card]:not(:empty){padding:4px 16px 8px;background:linear-gradient(160deg,#0f1a3a,#17284f);color:#eaf2ff;border:2px solid var(--cyan);animation:jc-card .6s cubic-bezier(.2,.9,.3,1.2) both;box-shadow:0 10px 24px -14px #000}.jc-preview div[id^=card] h3{font:800 20px system-ui;margin:6px 0 0;color:var(--cyan)}.jc-preview div[id^=card] p{margin:2px 0 4px;color:#dbe7ff}
@keyframes jc-card{from{opacity:0;transform:translateY(24px) scale(.9)}}
.jc-preview .flash{outline:3px solid var(--coral);outline-offset:3px;border-radius:6px}
.jc-inspector{padding:8px;border-radius:14px;background:#070b17;border:1px solid var(--line);font:600 15px ui-monospace,Consolas,monospace;max-height:230px;overflow:auto}.jc-insphead{padding:4px 8px;color:var(--cyan);font:800 14px var(--sans)}.jc-insphead small{color:var(--mute);font-weight:600}
.jc-insp{display:block;width:100%;text-align:left;padding:3px 8px 3px calc(8px + var(--d) * 18px);background:none;border:0;border-radius:6px;color:#9fd0ff;font:inherit;cursor:pointer}.jc-insp:hover{background:rgba(0,240,255,.15)}.jc-insp.seen{color:var(--ok)}.jc-insp.seen::after{content:" ✓"}.jc-insp.text{color:#d6dcf0;cursor:default;display:block;padding-left:calc(8px + var(--d) * 18px)}
/* quiz and certificate */
.jc-quiz h3{font-size:24px;margin:8px 0}
.jc-flips{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:12px;margin-bottom:18px}
.jc-flip{position:relative;height:210px;border:0;background:none;perspective:900px;cursor:pointer;padding:0;color:#fff}.jc-flip .face{position:absolute;inset:0;display:grid;gap:4px;align-content:center;justify-items:center;padding:14px;border-radius:18px;text-align:center;-webkit-backface-visibility:hidden;backface-visibility:hidden;transition:transform .6s;border:1px solid var(--line)}
.jc-flip .front{background:linear-gradient(160deg,#1b2a5a,#101a38)}.jc-flip .front em{font-style:normal;font-size:38px}.jc-flip .front b{font:800 20px ui-monospace,Consolas,monospace;color:var(--cyan)}.jc-flip .front small{font-size:15px;color:#dfe8ff}
.jc-flip .back{background:linear-gradient(160deg,#5a2230,#2a1020);transform:rotateY(180deg)}.jc-flip .back p{margin:0;font-size:16px}.jc-flip .back code{font-size:14px}
.jc-flip.on .front{transform:rotateY(-180deg)}.jc-flip.on .back{transform:rotateY(0)}
.jc-qbox{display:grid;gap:12px;padding:16px;border-radius:18px;background:var(--panel);border:1px solid var(--line)}.jc-qtext{font:500 clamp(22px,2.2vw + 8px,28px)/1.25 var(--serif)}
.jc-opts{display:grid;gap:10px}.jc-opt{text-align:left;padding:14px 18px;border-radius:14px;border:2px solid var(--line);background:rgba(255,255,255,.06);color:#fff;font:600 18px/1.4 var(--sans);cursor:pointer}.jc-opt:hover:not(:disabled){border-color:var(--cyan);background:rgba(0,240,255,.12)}.jc-opt.ok{border-color:var(--ok);background:rgba(61,220,151,.2)}.jc-opt.bad{border-color:var(--bad);background:rgba(255,107,107,.15)}
.jc-cert{margin-top:18px;display:grid;gap:12px}.jc-cert[hidden]{display:none}
.jc-certcard{position:relative;display:grid;gap:6px;justify-items:center;text-align:center;padding:clamp(20px,3vw,40px);border-radius:22px;background:radial-gradient(circle at 50% 0,#fff7dc,#f1d98f);color:#3a2a00;border:6px double #b8860b;box-shadow:0 20px 50px -20px #000}.jc-certcard small{font:800 12.5px var(--sans);letter-spacing:.18em;text-transform:uppercase}.jc-certcard h3{color:#5a3b00;font-size:clamp(26px,3.4vw,40px)}.jc-certcard p{margin:0;font-size:18px}.jc-certname{font:600 clamp(30px,4vw,48px) var(--serif);color:#8f2f18;border-bottom:2px solid #b8860b;padding:0 18px}.jc-certcard .seal{position:absolute;right:20px;bottom:14px;font-size:44px;filter:drop-shadow(0 4px 6px rgba(0,0,0,.3))}
.jc-fine{margin:0;color:var(--mute);font-size:15px}.jc-fld.jc-fld{gap:6px}
/* toasts */
.jc-toasts{position:fixed;right:16px;bottom:84px;z-index:9996;display:grid;gap:8px;justify-items:end;pointer-events:none}.jc-toast{padding:10px 16px;border-radius:14px;background:#10172e;border:1px solid var(--line);color:#fff;font-weight:700;font-size:16px;box-shadow:0 12px 30px -10px #000;animation:jc-pop .4s both}.jc-toast.xp{border-color:var(--coral)}.jc-toast.badge{background:linear-gradient(160deg,#ffd166,#ff9f1c);color:#3a2300;border:0}.jc-toast.rank{background:linear-gradient(160deg,#35e6ff,#00b8d4);color:#04222a;border:0}.jc-toast.out{opacity:0;transform:translateY(8px);transition:.4s}
@media(max-width:900px){.jc-idegrid{grid-template-columns:minmax(0,1fr)}.jc-tools{margin-left:0}.jc-level{flex-basis:100%}}
@media(max-width:560px){.jc{font-size:17px;border-radius:20px}.jc-foot{display:grid}.jc-donenote{order:3}.jc-bigbtn{width:100%}.jc-toasts{right:8px;left:8px;justify-items:stretch}}
@media(prefers-reduced-motion:reduce){.jc::before,.jc-next.ready,.jc-bigbtn.ready,.jc-alarm,.drop,.pop,.jc-card,.jc-crowd i,.jc-toast{animation:none!important}.jc-flip .face,.jc-xpbar i{transition:none}}
@media print{.jc{background:#fff;color:#000;box-shadow:none}}