/* LIVE QUIZ: host page (assets/livequiz.js), the students' phones (assets/liveplay.js) and the quiz editor. */
:root{--lq0:#6455e3;--lq1:#0e8a7d;--lq2:#c2417a;--lq3:#2c4a8a}
.lq-hero{display:flex;align-items:center;gap:20px}
.lq-hero-img{width:240px;height:auto;flex:none}
@media(max-width:700px){.lq-hero{flex-direction:column;align-items:flex-start}.lq-hero-img{width:180px}}
.lq-setup h3{margin:20px 0 8px;font-size:15px}
.lq-chips{display:flex;flex-wrap:wrap;gap:8px}
.lq-chip{background:#fff;border:1.5px solid var(--line);color:var(--ink);padding:10px 14px;font-weight:800;min-height:44px}
.lq-chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
@media(hover:hover) and (pointer:fine){.lq-chip:not(.on):hover{border-color:var(--brand);color:var(--brand)}}
.lq-go{margin-top:22px;font-size:18px;padding:14px 26px}
.lq-go:disabled{opacity:.45;cursor:default;box-shadow:none}
.lq-make{margin-top:12px}
.lq-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.lq-small{padding:8px 12px;font-size:14px}
/* the projector */
body.lq-playing{overflow:hidden}
.lq-stage{position:fixed;inset:0;z-index:50;background:radial-gradient(circle at 15% 20%,#e4dfff 0,transparent 40%),radial-gradient(circle at 85% 80%,#d9f3ef 0,transparent 40%),#f4f2ff;background-size:200% 200%;animation:lq-bg 18s ease-in-out infinite alternate;display:flex;flex-direction:column;overflow:auto}
.lq-bar{display:flex;align-items:center;gap:14px;padding:12px 22px;background:#fff;border-bottom:1px solid var(--line)}
.lq-bar b{font-size:16px}
.lq-bar-r{margin-left:auto;display:flex;gap:8px}
.lq-status{font-weight:800;font-size:14px;color:var(--muted)}
.lq-status.down{color:var(--bad)}
.lq-body{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:28px 28px 40px;display:flex;flex-direction:column;align-items:center;gap:18px;text-align:center}
.lq-join{display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap}
.lq-join-t p{margin:0}
.lq-join-go{font-size:clamp(18px,2.2vw,28px);color:var(--muted);font-weight:700}
.lq-join-url{font-size:clamp(26px,3.6vw,48px);font-weight:900;color:var(--ink)}
.lq-code{font-size:clamp(56px,9vw,120px);font-weight:900;letter-spacing:.12em;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums}
.lq-qr{width:clamp(160px,20vw,260px);background:#fff;border-radius:18px;padding:10px}
.lq-qr svg{display:block;width:100%;height:auto}
.lq-count{font-size:22px;font-weight:800;margin:0}
.lq-players{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:1000px}
.lq-player{background:#fff;border:1.5px solid var(--line);border-radius:999px;padding:10px 16px;font-weight:800;font-size:18px;cursor:pointer;animation:lq-pop .25s ease-out}
@media(hover:hover) and (pointer:fine){.lq-player:hover{border-color:var(--bad);color:var(--bad);text-decoration:line-through}}
@keyframes lq-pop{from{transform:scale(.6);opacity:0}to{transform:none;opacity:1}}
.lq-hint{margin:0}
.lq-qtop{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px}
.lq-qn,.lq-answered{font-weight:800;color:var(--muted);font-size:18px}
.lq-clock{width:84px;height:84px;border-radius:50%;background:var(--brand);color:#fff;font-size:38px;font-weight:900;display:grid;place-items:center;font-variant-numeric:tabular-nums}
.lq-clock.low{background:var(--bad)}
.lq-ask{margin:0;color:var(--muted);font-size:20px;font-weight:700}
.lq-prompt{margin:0;font-size:clamp(26px,3.4vw,44px);font-weight:800;line-height:1.35;max-width:1100px}
.lq-prompt.small{font-size:clamp(20px,2.4vw,30px)}
.lq-prompt mark{background:#e9f7f0;color:var(--good);border-radius:8px;padding:0 8px}
.lq-gap{color:var(--brand);letter-spacing:-.05em}
.lq-opts{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.lq-opt{display:flex;align-items:center;gap:16px;padding:20px 24px;border-radius:18px;color:#fff;font-size:clamp(20px,2.4vw,32px);font-weight:800;text-align:left;position:relative;transition:opacity .3s,transform .3s}
.lq-opt b{flex:none;width:52px;height:52px;border-radius:12px;background:#ffffff33;display:grid;place-items:center;font-size:28px}
.lq-opt i{margin-left:auto;font-style:normal;background:#ffffff33;border-radius:10px;padding:4px 12px;font-size:22px}
.o0{background:var(--lq0)}.o1{background:var(--lq1)}.o2{background:var(--lq2)}.o3{background:var(--lq3)}
.lq-opt.wrong{opacity:.28}
.lq-opt.right{transform:scale(1.03);box-shadow:0 0 0 5px #fff,0 0 0 9px var(--good)}
.lq-opt.right::after{content:"✓";position:absolute;right:-12px;top:-12px;width:36px;height:36px;border-radius:50%;background:var(--good);color:#fff;display:grid;place-items:center;font-size:22px}
.lq-skip{margin-top:6px}
.lq-why{margin:0;max-width:900px;font-size:20px;line-height:1.5;color:var(--ink);background:#fff;border-radius:16px;padding:14px 20px}
.lq-h{font-size:40px;margin:0}
.lq-board{list-style:none;counter-reset:r;margin:0;padding:0;width:100%;max-width:720px;display:grid;gap:10px}
.lq-board li{counter-increment:r;display:flex;align-items:center;gap:14px;background:#fff;border-radius:16px;padding:14px 20px;font-size:24px}
.lq-board li::before{content:counter(r);font-weight:900;color:var(--brand);width:34px}
.lq-board li span{margin-left:auto;font-weight:900;font-variant-numeric:tabular-nums}
.lq-board li i{font-style:normal;color:var(--good);font-weight:800;font-size:18px}
.lq-board.small li{font-size:17px;padding:10px 16px}
.lq-podium{display:flex;align-items:flex-end;justify-content:center;gap:16px}
.lq-step{background:#fff;border-radius:18px 18px 0 0;padding:16px 22px;min-width:180px;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:22px}
.lq-step b{font-size:26px}
.lq-step.s1{min-height:220px;background:var(--brand);color:#fff}.lq-step.s2{min-height:170px}.lq-step.s3{min-height:130px}
.lq-medal{font-size:44px}
.lq-mascots{width:260px;height:auto}
.lq-all{width:100%;max-width:720px;text-align:left}
.lq-all summary{cursor:pointer;font-weight:800;margin-bottom:10px}
@media(max-width:700px){.lq-opts{grid-template-columns:1fr}.lq-body{padding:18px 16px 30px}.lq-step{min-width:0;padding:12px}.lq-podium{gap:8px}}

/* the students' phones */
.lqp-body .loop,.lqp-body .acct-link{display:none}
.lqp-join{max-width:440px;margin:10px auto;display:flex;flex-direction:column;gap:8px}
.lqp-join h1{margin:0 0 6px;font-size:28px}
.lqp-join input{border:1.5px solid var(--line);border-radius:14px;padding:14px;font-size:18px}
.lqp-code{text-align:center;font-size:32px!important;font-weight:900;letter-spacing:.2em;text-transform:uppercase}
.lqp-join .btn{margin-top:8px;font-size:18px;padding:14px}
.lqp-msg{background:#fff6e5;border-radius:12px;padding:10px 12px;margin:0;font-weight:700}
.lqp-top{display:flex;align-items:center;gap:10px;justify-content:space-between;font-size:16px;margin:4px 0 12px}
.lqp-top span{font-weight:800;color:var(--brand)}
.lqp-net{color:var(--bad)!important}
.lqp-wait{text-align:center;font-size:22px;font-weight:800;padding:40px 20px}
.lqp-q{display:flex;flex-direction:column;gap:12px}
.lqp-qn{margin:0;color:var(--muted);font-weight:800;font-size:14px}
.lqp-prompt{margin:0;font-size:19px;font-weight:700;line-height:1.4}
.lqp-gap{color:var(--brand)}
.lqp-opts{display:grid;gap:10px}
.lqp-opt{display:flex;align-items:center;gap:12px;border:0;border-radius:16px;padding:16px;min-height:64px;color:#fff;font-size:18px;font-weight:800;text-align:left;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.lqp-opt b{flex:none;width:36px;height:36px;border-radius:10px;background:#ffffff33;display:grid;place-items:center}
.lqp-opt:disabled{opacity:.35;cursor:default}
.lqp-opt.picked{opacity:1;box-shadow:0 0 0 4px #fff,0 0 0 7px var(--ink)}
.lqp-sent{text-align:center;font-weight:800;color:var(--muted);margin:4px 0 0}
.lqp-res{text-align:center;padding:34px 20px}
.lqp-res.ok{background:var(--goodbg)}.lqp-res.ko{background:#fff}
.lqp-big{font-size:30px;font-weight:900;margin:0 0 8px}
.lqp-plus{font-size:40px;font-weight:900;color:var(--good);margin:0}
.lqp-rank{font-size:20px;font-weight:800}
/* the quiz editor */
.lqc-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:10px 0;border-bottom:1px solid var(--line)}
.lqc-row b{flex:1;min-width:160px}
.lqc-msg{background:var(--goodbg);color:var(--good);border-radius:12px;padding:10px 12px;font-weight:700}
.lqc-title{width:100%;border:1.5px solid var(--line);border-radius:14px;padding:14px;font-size:20px;font-weight:800}
.lqc-list{display:grid;gap:14px;margin:16px 0}
.lqc-q{border:1px solid var(--line);border-radius:16px;padding:14px;background:#fafbfd}
.lqc-qtop{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.lqc-q textarea{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:10px;font:inherit;font-size:16px;resize:vertical}
.lqc-opt{display:flex;align-items:center;gap:8px;margin-top:8px}
.lqc-opt input[type=radio]{width:22px;height:22px;flex:none;accent-color:var(--good)}
.lqc-opt b{width:20px;flex:none;color:var(--muted)}
.lqc-opt input:not([type]){flex:1;min-width:0;border:1.5px solid var(--line);border-radius:10px;padding:10px;font-size:16px}
.lqc-err{color:var(--bad);font-weight:700;min-height:1em;margin:6px 0 0}

/* ---------- game feel: movement and effects ---------- */
@keyframes lq-bg{to{background-position:100% 100%}}
.lq-body{position:relative}
.lq-in>*{animation:lq-rise .45s cubic-bezier(.2,.8,.2,1) both}
.lq-in>*:nth-child(2){animation-delay:.05s}.lq-in>*:nth-child(3){animation-delay:.1s}.lq-in>*:nth-child(4){animation-delay:.15s}
@keyframes lq-rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.lq-opts .lq-opt{animation:lq-pop-in .45s cubic-bezier(.2,1.4,.4,1) both}
@keyframes lq-pop-in{from{opacity:0;transform:scale(.85) translateY(14px)}to{opacity:1;transform:none}}
.lq-opts .lq-opt.right{animation:lq-pop-in .45s cubic-bezier(.2,1.4,.4,1) both,lq-glow 1.4s ease-in-out .5s 2}
.lq-opts .lq-opt.wrong{animation:lq-dim .6s ease-out .2s both}
@keyframes lq-dim{from{opacity:1}to{opacity:.28;transform:scale(.97)}}
@keyframes lq-glow{50%{box-shadow:0 0 0 5px #fff,0 0 0 14px #16a34a66}}
.lq-clock.tick{animation:lq-tick .35s ease-out}
.lq-clock.low.tick{animation:lq-tick-low .4s ease-out}
@keyframes lq-tick{from{transform:scale(1.15)}to{transform:none}}
@keyframes lq-tick-low{0%{transform:scale(1.3)}30%{transform:scale(1.1) rotate(-6deg)}60%{transform:rotate(5deg)}to{transform:none}}
.lq-timebar{width:100%;height:14px;background:#ffffffaa;border-radius:99px;overflow:hidden;margin-top:-6px}
.lq-timebar i{display:block;height:100%;width:100%;transform-origin:left;background:linear-gradient(90deg,var(--lq1),var(--lq0));border-radius:99px;transition:transform .1s linear}
.lq-timebar i.low{background:linear-gradient(90deg,#f97316,var(--bad))}
.lq-answered.bump{animation:lq-tick .35s ease-out;color:var(--brand)}
.lq-votes{position:absolute;left:16px;right:16px;bottom:9px;height:7px;border-radius:99px;overflow:hidden;background:#00000026}
.lq-votes i{display:block;height:100%;width:0;background:#fff;border-radius:99px;transition:width .9s cubic-bezier(.2,.8,.2,1) .2s}
.lq-opt em{margin-left:auto;font-style:normal;background:#ffffff33;border-radius:10px;padding:4px 12px;font-size:22px}
.lq-opt{overflow:visible}
.lq-score-line{margin:0;font-size:22px;font-weight:800;animation:lq-rise .5s .4s both}
/* the ranking race */
.lq-race{position:relative;width:100%;max-width:980px}
.lq-lane{position:absolute;left:0;right:0;top:0;height:64px;display:flex;align-items:center;gap:12px;transition:transform .8s cubic-bezier(.3,1.3,.5,1),opacity .5s}
.lq-pos{width:44px;height:44px;border-radius:50%;background:#fff;color:var(--brand);display:grid;place-items:center;font-size:22px;flex:none}
.lq-track{flex:1;height:56px;background:#ffffffb3;border-radius:16px;overflow:hidden}
.lq-fill{display:flex;align-items:center;height:100%;min-width:max-content;padding:0 18px;border-radius:16px;color:#fff;transition:width 1.1s cubic-bezier(.2,.8,.2,1);box-sizing:border-box}
.lq-lname{font-weight:900;font-size:22px;white-space:nowrap}
.lq-pts{width:110px;text-align:right;font-weight:900;font-size:24px;font-variant-numeric:tabular-nums}
.lq-plus{position:absolute;right:0;top:-14px;color:var(--good);font-weight:900;font-size:20px;animation:lq-float 1.6s ease-out .3s both}
@keyframes lq-float{0%{opacity:0;transform:translateY(14px) scale(.8)}20%{opacity:1;transform:none}80%{opacity:1}to{opacity:0;transform:translateY(-16px)}}
.lq-streak{position:absolute;right:120px;top:-14px;font-weight:900;font-size:18px;color:#ea580c;animation:lq-pop-in .5s .8s both}
/* the podium */
.lq-step{animation:lq-grow .7s cubic-bezier(.2,1.3,.4,1) both;transform-origin:bottom}
@keyframes lq-grow{from{transform:scaleY(0);opacity:0}60%{opacity:1}to{transform:none;opacity:1}}
.lq-step.s1 .lq-medal{animation:lq-bounce 1s ease-in-out 2.4s 3}
@keyframes lq-bounce{50%{transform:translateY(-12px) rotate(-8deg)}}
.lq-step-pts{font-variant-numeric:tabular-nums}
.lq-mascots{animation:lq-rise .6s 2.2s both}
/* confetti */
.lq-confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:60}
.lq-confetti i{position:absolute;top:-20px;width:10px;height:16px;border-radius:3px;animation:lq-fall linear both}
@keyframes lq-fall{to{transform:translate(var(--x),110vh) rotate(var(--r))}}
/* phone */
.lqp-opt{transition:transform .12s}
.lqp-opt:active:not(:disabled){transform:scale(.96)}
.lqp-q>*{animation:lq-rise .35s cubic-bezier(.2,.8,.2,1) both}
.lqp-opts .lqp-opt{animation:lq-pop-in .4s cubic-bezier(.2,1.4,.4,1) both}
.lqp-opts .lqp-opt:nth-child(2){animation-delay:.05s}.lqp-opts .lqp-opt:nth-child(3){animation-delay:.1s}.lqp-opts .lqp-opt:nth-child(4){animation-delay:.15s}
.lqp-res{position:relative;overflow:hidden;animation:lq-pop-in .45s cubic-bezier(.2,1.4,.4,1) both}
.lqp-res.shake{animation:lq-shake .5s ease-in-out both}
@keyframes lq-shake{20%,60%{transform:translateX(-10px)}40%,80%{transform:translateX(10px)}}
.lqp-streak{font-size:22px;font-weight:900;color:#ea580c;margin:6px 0;animation:lq-pop-in .5s .3s both}
.lqp-bar{height:16px;background:#e8eaf0;border-radius:99px;overflow:hidden;margin:16px 0 4px}
.lqp-bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--lq1),var(--lq0));transition:width 1s cubic-bezier(.2,.8,.2,1) .3s}
.lqp-barlab{margin:0;color:var(--muted);font-weight:700;font-size:14px}
.lqp-top span{font-variant-numeric:tabular-nums}
@media(prefers-reduced-motion:reduce){.lq-stage{animation:none}.lq-player,.lq-opt,.lq-in>*,.lq-opts .lq-opt,.lq-opts .lq-opt.right,.lq-opts .lq-opt.wrong,.lq-clock.tick,.lq-answered.bump,.lq-score-line,.lq-plus,.lq-streak,.lq-step,.lq-step.s1 .lq-medal,.lq-mascots,.lqp-q>*,.lqp-opts .lqp-opt,.lqp-res,.lqp-res.shake,.lqp-streak{animation:none}.lq-lane,.lq-fill,.lq-votes i,.lqp-bar i,.lq-timebar i{transition:none}}
/* avatars and the word counter */
.lqp-avatars{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.lqp-av{font-size:28px;line-height:1;padding:8px 0;min-height:48px;border-radius:12px;border:2px solid transparent;background:#fff;cursor:pointer;touch-action:manipulation;transition:transform .12s}
.lqp-av.on{border-color:var(--brand);background:#f1efff;transform:scale(1.08)}
.lq-face{font-size:24px;margin-right:8px;vertical-align:-3px}
.lq-face-big{font-size:56px;line-height:1;animation:lq-bounce 1.2s ease-in-out 2.6s 2}
.lqc-wc{margin:4px 0 0;font-size:13px;color:var(--muted);font-weight:700}
.lqc-wc.over{color:var(--bad)}
@media(prefers-reduced-motion:reduce){.lq-face-big,.lqp-av{animation:none;transition:none}}