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@font-face{font-family:'Cairo';font-style:normal;font-weight:400 900;font-display:swap;src:url(fonts/cairo-latin.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}

:root{--bg:#f3f8ff;--ink:#1d2340;--muted:#5b6380;--card:#fff;--pri:#1e88e5;--pri2:#1565c0;--ok:#2e7d32;--okbg:#e8f5e9;--bad:#c62828;--badbg:#ffebee;--gold:#ffb300;--r:22px;--sh:0 6px 20px rgba(30,60,120,.10)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Cairo,"Segoe UI",Tahoma,sans-serif;color:var(--ink);background:var(--bg);background-image:radial-gradient(circle at 10% 0,#e1f0ff 0,transparent 40%),radial-gradient(circle at 100% 30%,#fff3d6 0,transparent 35%);line-height:1.7;font-size:18px;-webkit-tap-highlight-color:transparent;padding-bottom:86px}
img{max-width:100%}
a{color:var(--pri2)}
:focus-visible{outline:4px solid #ffca28;outline-offset:3px;border-radius:10px}
.skip{position:absolute;right:-999px;top:0;background:#fff;padding:8px 14px;z-index:99}
.skip:focus{right:8px}
h1,h2,h3{line-height:1.35;margin:.2em 0 .4em}
/* top bar */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:12px;padding:8px 16px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);box-shadow:0 2px 12px rgba(0,0,0,.06)}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink)}
.brand img{width:44px;height:44px;object-fit:contain}
.brand span{display:flex;flex-direction:column;line-height:1.1}
.brand b{font-size:20px;font-weight:900;color:#d81b60}
.brand small{font-size:13px;color:var(--muted);white-space:nowrap}
.nav{display:flex;gap:4px;margin-inline-start:auto}
.nav a{display:flex;align-items:center;gap:6px;text-decoration:none;color:var(--ink);font-weight:700;padding:8px 14px;border-radius:999px;font-size:17px}
.nav a:hover{background:#eef4ff}
.nav a.active{background:var(--pri);color:#fff}
.hud{display:flex;align-items:center;gap:8px}
.starpill,.rankpill{background:#fff6d8;border:2px solid #ffd54f;border-radius:999px;padding:2px 12px;font-weight:800;white-space:nowrap}
.rankpill{background:#eef4ff;border-color:#bbdefb;font-size:15px}
.iconbtn{border:0;background:#eef4ff;border-radius:50%;width:44px;height:44px;font-size:22px;cursor:pointer}
main{max-width:1180px;margin:0 auto;padding:18px 16px 30px;outline:none}
main:focus,main:focus-visible{outline:none}
.foot{text-align:center;color:var(--muted);font-size:14px;padding:10px 16px 20px}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:52px;padding:10px 22px;border-radius:999px;border:3px solid var(--pri);background:#fff;color:var(--pri2);font:inherit;font-weight:800;text-decoration:none;cursor:pointer;transition:transform .12s, box-shadow .12s;box-shadow:0 4px 0 #bcd6f5}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 #bcd6f5}
.btn.primary{background:var(--pri);color:#fff;box-shadow:0 4px 0 var(--pri2)}
.btn.big{font-size:20px;min-height:58px;padding:10px 28px}
.btn.huge{font-size:24px;min-height:68px;padding:12px 36px;min-width:180px}
.btn.ghost{border-style:dashed}
.btn.safe{background:#43a047;border-color:#2e7d32;color:#fff;box-shadow:0 4px 0 #1b5e20}
.btn.danger{background:#ef5350;border-color:#c62828;color:#fff;box-shadow:0 4px 0 #8e0000}
.btn.danger-o{border-color:#e57373;color:#c62828;box-shadow:0 4px 0 #ffcdd2}
.btn:disabled{opacity:.6;cursor:default}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:12px 0}
.row.center,.center{justify-content:center;text-align:center}
.muted{color:var(--muted)}
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--sh);padding:20px 22px;margin:18px 0}
.page-title{font-size:34px;font-weight:900;margin-top:4px}
.page-sub{color:var(--muted);margin-top:-6px}
.sec-title{font-size:26px;font-weight:900;margin:28px 0 10px}
.back{display:inline-block;font-weight:800;text-decoration:none;margin-bottom:6px;padding:6px 0}
.pill{display:inline-block;background:var(--c,#1e88e5);color:#fff;border-radius:999px;padding:2px 14px;font-weight:800;font-size:16px}
/* hero */
.hero{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;align-items:center;background:linear-gradient(135deg,#1e88e5,#7c4dff);color:#fff;border-radius:30px;padding:28px 32px;box-shadow:var(--sh);position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:16px;background:repeating-linear-gradient(90deg,#fff 0 40px,transparent 40px 80px);opacity:.35}
.kicker{font-weight:800;opacity:.9;margin:0}
.hero h1{font-size:40px;font-weight:900}
.hero h1 span{color:#ffeb3b;display:block}
.lead{font-size:20px}
.hero .btn{border-color:#fff}
.hero .btn:not(.primary){background:rgba(255,255,255,.15);color:#fff;box-shadow:0 4px 0 rgba(0,0,0,.2)}
.hero .btn.primary{background:#ffeb3b;color:#1d2340;border-color:#ffeb3b;box-shadow:0 4px 0 #c8a900}
.hero-mascot{position:relative;text-align:center}
.mascot{width:min(300px,80%);height:auto;filter:drop-shadow(0 12px 18px rgba(0,0,0,.25))}
.bubble{position:relative;display:inline-block;background:#fff;color:var(--ink);font-weight:800;border-radius:20px;padding:10px 16px;margin-bottom:6px;max-width:300px;box-shadow:0 6px 16px rgba(0,0,0,.15)}
.bubble:after{content:"";position:absolute;bottom:-12px;left:50%;border:12px solid transparent;border-top-color:#fff;border-bottom:0;margin-left:-12px}
.float{animation:float 3.2s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-10px) rotate(-2deg)}}
/* progress */
.progress-card .pc-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.bigcount{font-size:36px;font-weight:900;color:#f57f17}
.bigcount small{font-size:18px;color:var(--muted)}
.pbar{height:18px;background:#e8eef8;border-radius:999px;overflow:hidden;margin:10px 0}
.pbar span{display:block;height:100%;background:linear-gradient(90deg,#ffca28,#ff7043);border-radius:999px;transition:width .6s}
.mini-stats{display:flex;flex-wrap:wrap;gap:8px 22px;color:var(--muted)}
.rank{margin:0;color:var(--muted)}
.ranks{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.ranks span{background:#f1f3f8;border-radius:14px;padding:4px 12px;font-weight:700;color:#9aa0b4;display:flex;flex-direction:column;align-items:center;line-height:1.3}
.ranks span.on{background:#fff3cd;color:#8a5a00}
.ranks small{font-size:13px}
/* grids */
.grid{display:grid;gap:16px}
.grid.units{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.grid.games{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.grid.vids{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.grid.badges{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}
.utile,.gtile{position:relative;display:flex;flex-direction:column;gap:4px;background:#fff;border-radius:var(--r);padding:18px;text-decoration:none;color:var(--ink);box-shadow:var(--sh);border-top:8px solid var(--c,#1e88e5);transition:transform .15s}
.utile:hover,.gtile:hover{transform:translateY(-4px)}
.utile b,.gtile b{font-size:20px;font-weight:900}
.utile small,.gtile small{color:var(--muted);font-size:15px;line-height:1.5}
.uicon,.gicon{font-size:44px;line-height:1}
.unum{position:absolute;top:10px;left:14px;background:var(--c);color:#fff;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-weight:900}
.utile.done{background:linear-gradient(180deg,#fffdf2,#fff)}
.medal{position:absolute;top:40px;left:10px;font-size:34px;animation:float 3s infinite}
.ustars{margin-top:auto;font-size:22px}
.st{color:#d6dbe6}.st.on{color:#ffb300}
.gtile{border-top-color:#8e24aa}
.gtile .btn{margin-top:8px;align-self:flex-start;min-height:44px}
.howlist{padding-inline-start:20px;margin:0}
.howlist li{margin:4px 0}
/* unit */
.uhead{display:grid;grid-template-columns:1.1fr 1fr;gap:20px;align-items:center;background:#fff;border-radius:28px;overflow:hidden;box-shadow:var(--sh);border-bottom:8px solid var(--c)}
.uimg{width:100%;height:100%;max-height:360px;object-fit:cover;display:block}
.signs-hero{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;padding:26px;background:#fde7ef;min-height:220px}
.uhead-text{padding:18px 22px}
.uhead-text h1{font-size:32px;font-weight:900;color:var(--c)}
.lcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;margin-top:20px}
.lcard{display:flex;gap:14px;align-items:flex-start;background:#fff;border-radius:20px;padding:16px;box-shadow:var(--sh);animation:rise .5s both;animation-delay:var(--d)}
@keyframes rise{from{transform:translateY(14px)}}
.lc-ico{flex:0 0 72px;height:72px;display:grid;place-items:center;font-size:40px;background:#f3f6ff;border-radius:18px}
.lcard h3{font-size:20px;margin:0 0 2px;font-weight:900}
.lcard p{margin:0;font-size:17px}
.tipbox{display:flex;align-items:center;gap:14px;background:#fff8e1;border:3px dashed #ffca28;border-radius:22px;padding:12px 18px;margin:20px 0;font-weight:700}
.tipbox p{margin:0}
.mascot-xs{width:64px;height:64px;object-fit:contain;flex:0 0 64px}
.quiz-cta{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;border-inline-start:10px solid var(--c)}
.quiz-cta .best{margin:0;font-size:22px}
.next-unit{width:100%;margin-top:6px}
/* video */
.vcard{background:#fff;border-radius:20px;overflow:hidden;box-shadow:var(--sh)}
.vthumb{position:relative;display:block;width:100%;aspect-ratio:16/9;border:0;padding:0;cursor:pointer;background:#000}
.vthumb img{width:100%;height:100%;object-fit:cover;display:block;opacity:.92}
.play{position:absolute;inset:0;margin:auto;width:76px;height:76px;border-radius:50%;background:rgba(229,57,53,.92);color:#fff;font-size:32px;display:grid;place-items:center;padding-inline-end:4px;box-shadow:0 6px 18px rgba(0,0,0,.4);transition:transform .15s}
.vthumb:hover .play{transform:scale(1.1)}
.watched{position:absolute;top:10px;right:10px;background:#43a047;color:#fff;font-weight:800;border-radius:999px;padding:2px 10px;font-size:14px}
.vframe{width:100%;aspect-ratio:16/9;border:0;display:block}
.vmeta{padding:10px 14px}
.vmeta b{display:block;font-size:17px}
.vmeta small{color:var(--muted)}
/* games & quiz */
.game-shell{padding:20px}
.ghead{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.ghead h1{font-size:28px;font-weight:900;margin:0}
.gstat{background:#eef4ff;border-radius:999px;padding:4px 16px;font-weight:800}
.gdesc{color:var(--muted);margin:4px 0 10px}
.qtext{font-size:26px;font-weight:900;margin:14px 0}
.opts{display:grid;gap:12px}
.opt{display:flex;align-items:center;gap:12px;text-align:right;font:inherit;font-size:20px;font-weight:700;background:#f7f9ff;border:3px solid #dbe5f5;border-radius:18px;padding:14px 16px;min-height:64px;cursor:pointer;color:var(--ink);transition:transform .1s}
.opt:hover:not(:disabled){border-color:var(--pri);background:#eef5ff}
.ol{flex:0 0 40px;height:40px;border-radius:50%;background:var(--c,#1e88e5);color:#fff;display:grid;place-items:center;font-weight:900}
.opt.right{background:var(--okbg);border-color:#66bb6a}
.opt.wrong{background:var(--badbg);border-color:#ef5350}
.opt:disabled{cursor:default}
.feedback{margin-top:14px;border-radius:18px;padding:0 16px;font-size:19px}
.feedback.good{background:var(--okbg);color:#1b5e20;padding:14px 16px}
.feedback.bad{background:var(--badbg);color:#8e0000;padding:14px 16px}
.feedback .btn{margin-top:10px}
.result{text-align:center;padding:10px}
.result h2{font-size:40px;font-weight:900;margin:0}
.rstars{font-size:46px}
/* street game */
.street{position:relative;height:300px;border-radius:22px;overflow:hidden;background:#8bc34a;margin:10px 0}
.sidewalk{position:absolute;left:0;right:0;height:70px;background:repeating-linear-gradient(90deg,#cfd8dc 0 48px,#b0bec5 48px 50px)}
.sidewalk.top{top:0}.sidewalk.bottom{bottom:0}
.road{position:absolute;left:0;right:0;top:70px;bottom:70px;background:#455a64}
.zebra{position:absolute;top:0;bottom:0;left:40%;width:22%;background:repeating-linear-gradient(0deg,#fff 0 16px,transparent 16px 32px);opacity:.9}
.car{position:absolute;top:30%;right:-20%;font-size:60px;line-height:1;transform:scaleX(1)}
.walker{position:absolute;bottom:8px;left:46%;font-size:48px;transition:bottom 1.2s ease-in-out}
.walker.cross{bottom:210px}
.plight{position:absolute;top:12px;left:12px;background:#212121;border-radius:16px;padding:8px;display:flex;flex-direction:column;gap:8px;box-shadow:0 4px 10px rgba(0,0,0,.4);z-index:2}
.lamp{width:62px;height:62px;border-radius:12px;display:grid;place-items:center;font-size:36px;background:#3a3a3a;filter:grayscale(1) brightness(.5)}
.plight.red .lamp.red{background:#e53935;filter:none;box-shadow:0 0 20px #ff5252}
.plight.green .lamp.green,.plight.flash .lamp.green{background:#43a047;filter:none;box-shadow:0 0 20px #69f0ae}
.plight.flash .lamp.green{animation:blink .4s steps(2) infinite}
@keyframes blink{50%{opacity:.2}}
.lmsg{text-align:center;font-size:22px;font-weight:900;min-height:40px;border-radius:14px;padding:6px}
.lmsg.good{background:var(--okbg);color:#1b5e20}.lmsg.bad{background:var(--badbg);color:#8e0000}
/* safe game */
.scard{background:linear-gradient(135deg,#fff,#f3f7ff);border:3px solid #dbe5f5;border-radius:24px;padding:22px;text-align:center;max-width:620px;margin:10px auto}
.semoji{font-size:64px;line-height:1.2}
.scard p{font-size:24px;font-weight:800;margin:8px 0 0}
.choice .btn{flex:1 1 160px;max-width:280px}
/* memory */
.mgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;max-width:640px;margin:10px auto}
.mcard{position:relative;aspect-ratio:1;border:0;background:transparent;padding:0;cursor:pointer;perspective:600px;font:inherit}
.mcard .mback,.mcard .mface{position:absolute;inset:0;border-radius:18px;display:grid;place-items:center;backface-visibility:hidden;transition:transform .4s;box-shadow:var(--sh)}
.mback{background:linear-gradient(135deg,#7c4dff,#1e88e5);font-size:40px}
.mface{background:#fff;transform:rotateY(180deg);padding:6px;font-size:16px;text-align:center;line-height:1.3;border:3px solid #dbe5f5}
.mcard.flip .mback{transform:rotateY(180deg)}
.mcard.flip .mface{transform:rotateY(0)}
.mcard.matched .mface{border-color:#66bb6a;background:#f1fbf1}
/* sort */
.sobig{text-align:center}
.sobig p{font-size:22px;font-weight:900;margin:4px 0}
.sign{display:inline-block;vertical-align:middle}
.bins{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.bin{font:inherit;border:3px solid #dbe5f5;background:#f7f9ff;border-radius:18px;padding:14px 8px;cursor:pointer;display:flex;flex-direction:column;align-items:center;min-height:90px;color:var(--ink)}
.bin b{font-size:22px;font-weight:900}
.bin small{color:var(--muted);font-size:14px}
.bin.right{background:var(--okbg);border-color:#66bb6a}.bin.wrong{background:var(--badbg);border-color:#ef5350}
/* cyclist */
.cyc-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:center}
.cyc{width:100%;max-width:460px;margin:auto;display:block;background:linear-gradient(#e3f2fd,#fff);border-radius:22px}
.cyc .p-helmet,.cyc .p-front,.cyc .p-rear,.cyc .p-refl,.cyc .p-bell,.cyc .p-vest{opacity:0;transition:opacity .4s, transform .4s;transform-origin:center;transform-box:fill-box;transform:scale(.4)}
.cyc.has-helmet .p-helmet,.cyc.has-front .p-front,.cyc.has-rear .p-rear,.cyc.has-refl .p-refl,.cyc.has-bell .p-bell,.cyc.has-vest .p-vest{opacity:1;transform:none}
.citems{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.citem{font:inherit;font-weight:800;font-size:17px;display:flex;align-items:center;gap:8px;background:#fff;border:3px solid #dbe5f5;border-radius:16px;padding:10px 12px;min-height:58px;cursor:pointer;color:var(--ink)}
.citem span{font-size:28px}
.citem.used{background:var(--okbg);border-color:#66bb6a}
.citem.nope{background:var(--badbg);border-color:#ef5350;text-decoration:line-through}
/* order */
.ogrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.opool{display:grid;gap:10px}
.ostep{font:inherit;font-weight:800;font-size:18px;text-align:right;display:flex;align-items:center;gap:10px;background:#fff;border:3px solid #dbe5f5;border-radius:16px;padding:12px;min-height:60px;cursor:pointer;color:var(--ink)}
.onum{flex:0 0 38px;height:38px;border-radius:50%;background:#ffca28;display:grid;place-items:center;font-weight:900}
.ostep.placed{background:var(--okbg);border-color:#66bb6a;opacity:.7}
.oresult{background:#f3f8ff;border-radius:18px;padding:12px 18px}
.oresult ol{margin:0;padding-inline-start:24px;font-weight:700}
.oresult li{margin:6px 0}
/* badges / cert */
.badge{display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px;background:#fff;border-radius:20px;padding:16px 10px;box-shadow:var(--sh);text-decoration:none;color:#9aa0b4;filter:grayscale(.8)}
.badge.on{color:var(--ink);filter:none;border:3px solid var(--c);background:linear-gradient(180deg,#fffef5,#fff)}
.bimg{font-size:44px;width:76px;height:76px;border-radius:50%;display:grid;place-items:center;background:#f1f3f8}
.badge.on .bimg{background:var(--c);box-shadow:0 0 0 5px #ffe082}
.badge b{font-size:16px;line-height:1.35}
.badge small{font-size:13px}
.locked{text-align:center}
.lockico{font-size:54px}
.cert-controls label{font-weight:900;display:block;margin-bottom:6px}
.cert-controls input{font:inherit;font-size:22px;width:100%;max-width:460px;padding:10px 16px;border-radius:14px;border:3px solid #bbdefb}
.seg{display:inline-flex;margin:10px 0;border:3px solid #bbdefb;border-radius:999px;overflow:hidden}
.seg button{font:inherit;font-weight:800;border:0;background:#fff;padding:8px 22px;cursor:pointer;min-height:46px}
.seg button.on{background:var(--pri);color:#fff}
.cert{background:linear-gradient(135deg,#fff8e1,#e3f2fd);border:14px solid #ffb300;border-radius:18px;padding:10px;margin:16px 0;box-shadow:var(--sh)}
.cert-in{position:relative;border:4px solid #1e88e5;border-radius:10px;padding:28px 24px 20px;text-align:center}
.cert-in:before{content:"";position:absolute;top:0;left:0;right:0;height:14px;background:linear-gradient(#e53935 0 50%,#ffeb3b 50% 75%,#43a047 75%)}
.cert-mascot{position:absolute;top:22px;left:20px;width:110px}
.cert-top{color:#5c6bc0;font-weight:800;margin:10px 0 0}
.cert h2{font-size:40px;font-weight:900;color:#c62828;margin:6px 0}
.cert-l{font-size:20px;font-weight:600;margin:6px auto;max-width:720px}
.cert-name{font-size:46px;font-weight:900;color:#0d47a1;border-bottom:3px dotted #90caf9;display:inline-block;min-width:50%;margin:4px 0}
.cert-badges{font-size:40px;letter-spacing:8px;margin:10px 0}
.cert-foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-weight:700;color:#555}
/* teacher */
.teacher-table{display:grid;gap:12px;margin-top:12px}
.tunit{background:#fff;border-radius:18px;padding:14px 18px;box-shadow:var(--sh);border-inline-start:8px solid var(--c)}
.tunit h3{margin:0 0 4px;font-weight:900}
.tunit p{margin:4px 0;font-size:16px}
.tunit .he{color:#455a64}
.sources li{margin:4px 0}
/* toast, modal */
.toast{position:fixed;left:50%;top:78px;transform:translate(-50%,-30px);background:#263238;color:#fff;font-weight:800;padding:10px 18px;border-radius:18px;opacity:0;pointer-events:none;transition:.3s;z-index:60;width:max-content;max-width:min(92vw,520px);text-align:center;line-height:1.5}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.good{background:#2e7d32}.toast.bad{background:#c62828}
.modal{position:fixed;inset:0;background:rgba(20,30,60,.55);display:grid;place-items:center;z-index:50;padding:16px}
.modal[hidden]{display:none}
.modal-card{position:relative;background:#fff;border-radius:28px;padding:26px 22px;max-width:480px;width:100%;text-align:center;animation:popin .35s}
@keyframes popin{from{transform:scale(.7);opacity:0}}
.xbtn{position:absolute;top:10px;left:12px;border:0;background:#f1f3f8;border-radius:50%;width:40px;height:40px;font-size:18px;cursor:pointer}
.celebrate h2{font-size:30px;font-weight:900;color:#d81b60}
.celebrate .row{justify-content:center}
.mascot-sm{width:120px;height:120px;object-fit:contain}
.stars3{font-size:54px}
.bigstar{color:#e0e4ee;display:inline-block}
.bigstar.on{color:#ffb300;animation:starpop .5s both}
.bigstar.on:nth-child(2){animation-delay:.15s}.bigstar.on:nth-child(3){animation-delay:.3s}
@keyframes starpop{0%{transform:scale(0) rotate(-90deg)}70%{transform:scale(1.3)}100%{transform:scale(1)}}
.bounce{animation:float 1.2s infinite}
.pop{animation:pop .35s}
@keyframes pop{50%{transform:scale(1.08)}}
.shake{animation:shake .4s}
@keyframes shake{20%,60%{transform:translateX(-8px)}40%,80%{transform:translateX(8px)}}
#confetti{position:fixed;inset:0;pointer-events:none;z-index:70;width:100%;height:100%}
/* responsive */
@media (max-width:900px){
  body{font-size:17px}
  .topbar{backdrop-filter:none;-webkit-backdrop-filter:none;background:#fff}
  .nav{position:fixed;bottom:0;left:0;right:0;justify-content:space-around;background:#fff;box-shadow:0 -4px 16px rgba(0,0,0,.1);padding:6px 4px calc(6px + env(safe-area-inset-bottom));margin:0;z-index:30}
  .nav a{flex-direction:column;gap:0;font-size:13px;padding:4px 6px;border-radius:14px;min-width:56px;min-height:52px;justify-content:center}
  .nav a span{font-size:22px}
  .nav a.tlink{display:none}
  .hud{margin-inline-start:auto}
  .rankpill{display:none}
  .hero,.uhead{grid-template-columns:1fr}
  .hero{padding:22px 18px 30px;text-align:center}
  .hero .row{justify-content:center}
  .hero h1{font-size:30px}
  .lead{font-size:18px}
  .hero-mascot{order:-1}
  .mascot{width:190px}
  .uimg{max-height:240px}
  .uhead-text h1{font-size:26px}
  .page-title{font-size:28px}
  .cyc-wrap,.ogrid{grid-template-columns:1fr}
  .bins{grid-template-columns:repeat(2,1fr)}
  .qtext{font-size:22px}
  .opt{font-size:18px}
  .cert h2{font-size:28px}.cert-name{font-size:34px}.cert-mascot{width:64px;top:18px;left:10px}
  .cert-badges{font-size:28px;letter-spacing:4px}
}
@media (max-width:480px){
  .mgrid{grid-template-columns:repeat(3,1fr);gap:8px}
  .mface{font-size:14px}
  .street{height:270px}
  .car{font-size:48px}
  .lamp{width:52px;height:52px;font-size:30px}
  .walker.cross{bottom:185px}
  .btn.huge{font-size:21px;min-width:150px;padding:10px 22px}
  .grid.units,.grid.games,.grid.vids,.lcards{grid-template-columns:1fr}
  .brand small{display:none}
  .citems{grid-template-columns:1fr 1fr}
  .citem{font-size:15px;padding:8px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/* print */
@media print{
  body{background:#fff;padding:0}
  .topbar,.nav,.foot,.toast,.modal,#confetti,.no-print,.back{display:none!important}
  body.print-cert main>*:not(.cert){display:none!important}
  body.print-cert .cert{margin:0;box-shadow:none;break-inside:avoid}
  body.print-teacher main .card:not(.sources){box-shadow:none}
  .tunit{box-shadow:none;border:1px solid #ccc;break-inside:avoid}
  @page{size:A4;margin:12mm}
}

.emoji-hero{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-height:240px;background:radial-gradient(circle at 30% 20%,#fff 0,transparent 55%),linear-gradient(135deg,var(--c),#ffffff);}
.eh-main{font-size:110px;line-height:1;filter:drop-shadow(0 8px 10px rgba(0,0,0,.2));animation:float 3s ease-in-out infinite}
.eh-row{display:flex;gap:14px;font-size:38px}
.eh-row i{font-style:normal;background:rgba(255,255,255,.8);border-radius:16px;padding:4px 8px}

.vblocked{position:relative;display:block;aspect-ratio:16/9;background:#000}
.vblocked img{width:100%;height:100%;object-fit:cover;opacity:.7;display:block}
.vb-note{position:absolute;bottom:10px;left:0;right:0;text-align:center;color:#fff;font-weight:800;text-shadow:0 1px 4px #000}

/* ===== guiding voice ===== */
.listen{display:inline-flex;align-items:center;gap:8px;font:inherit;font-weight:800;font-size:17px;color:#0d47a1;background:#e3f2fd;border:3px solid #90caf9;border-radius:999px;padding:6px 16px 6px 14px;min-height:48px;min-width:48px;cursor:pointer;margin-top:8px;vertical-align:middle;transition:background .2s,transform .1s}
.listen:hover{background:#bbdefb}
.listen:active{transform:scale(.96)}
.listen .li-ico{font-size:22px;line-height:1}
.listen.big{font-size:20px;padding:10px 22px;min-height:58px}
.listen.big .li-ico{font-size:28px}
.listen.sm{font-size:15px;min-height:44px;padding:4px 12px}
.listen.playing{background:#1e88e5;color:#fff;border-color:#1565c0}
.listen.playing .li-ico{animation:pulse 1s infinite}
@keyframes pulse{50%{transform:scale(1.25)}}
.lc-body{flex:1;min-width:0}
.lcard.speaking,.tipbox.speaking,.scard.speaking,.sp-card.speaking,.gdesc-row.speaking{box-shadow:0 0 0 4px #ffca28,var(--sh)}
.opt.speaking{border-color:#ffca28;background:#fff8e1;box-shadow:0 0 0 3px #ffe082}
.qhead{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.qhead .qtext{flex:1 1 260px;margin:0}
.qhead .listen{margin-top:0}
.gdesc-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;border-radius:16px;padding:4px 8px;margin:0 -8px 8px}
.gdesc-row .gdesc{flex:1 1 240px;margin:0}
.gdesc-row .listen{margin-top:0}
.scard .listen{margin-top:10px}
.feedback .listen{margin-top:6px}
.tipbox p{flex:1}
.autobtn{width:auto!important;border-radius:999px!important;padding:0 12px;display:inline-flex;align-items:center;gap:4px;font-size:20px!important}
.autobtn small{font:inherit;font-size:13px;font-weight:800;color:var(--muted);white-space:nowrap}
.autobtn.on{background:#1e88e5;color:#fff}
.autobtn.on small{color:#fff}
.repeat-fab{position:fixed;left:116px;bottom:18px;z-index:64;font:inherit;font-weight:900;font-size:19px;background:#ff9800;color:#fff;border:0;border-radius:999px;padding:10px 18px;min-height:54px;box-shadow:0 6px 16px rgba(0,0,0,.2);cursor:pointer}
.repeat-fab[hidden]{display:none}
/* settings + adaptations card */
.sped-card{border:3px dashed #ab47bc;background:#fbf3ff}
.sped-card.on{border-style:solid;background:#f3e5f5}
.sc-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.sc-ico{font-size:44px}
.sc-txt{flex:1 1 240px}
.sc-txt h2{margin:0;color:#6a1b9a}
.sc-txt p{margin:0;color:var(--muted)}
.switch{display:inline-flex;align-items:center;gap:10px;font:inherit;font-weight:900;font-size:18px;background:#fff;border:3px solid #ab47bc;border-radius:999px;padding:6px 16px 6px 8px;min-height:56px;cursor:pointer;color:#6a1b9a}
.switch .sw-knob{width:52px;height:30px;border-radius:99px;background:#ccc;position:relative;transition:background .2s}
.switch .sw-knob::after{content:"";position:absolute;top:3px;right:3px;width:24px;height:24px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.3);transition:right .2s}
.switch[aria-checked="true"] .sw-knob{background:#8e24aa}
.switch[aria-checked="true"] .sw-knob::after{right:25px}
.sc-opts,.set-list,.looks{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.set-list{flex-direction:column}
.chip{display:inline-flex;align-items:center;justify-content:space-between;gap:10px;font:inherit;font-weight:800;font-size:17px;background:#fff;border:3px solid #cfd8dc;border-radius:16px;padding:8px 14px;min-height:50px;cursor:pointer;color:var(--ink)}
.chip.on{border-color:#43a047;background:#e8f5e9}
.chip .chip-st{min-width:22px;font-weight:900;color:#2e7d32}
.settings h2{margin-top:0}.settings h3{margin:16px 0 0}
.muted.small{font-size:14px;margin-top:14px}
.hint{display:block;margin-top:6px;font-weight:700}
mark{background:#fff176;color:inherit;padding:0 .2em;border-radius:6px;font-weight:900}
/* adaptations: one card per screen */
.sp-step{margin-top:14px}
.sp-prog{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.sp-count{font-size:20px;font-weight:800}
.dots{display:flex;gap:8px;flex-wrap:wrap}
.dot{width:18px;height:18px;border-radius:50%;background:#e0e0e0;border:2px solid #bdbdbd}
.dot.done{background:#66bb6a;border-color:#43a047}
.dot.now{background:var(--c,#1e88e5);border-color:#0d47a1;transform:scale(1.25)}
.sp-card{background:#fff;border-radius:26px;padding:24px 20px;box-shadow:var(--sh);text-align:center;border-top:8px solid var(--c,#1e88e5)}
.sp-ico{font-size:96px;line-height:1.1}
.sp-ico .sign{width:130px;height:130px}
.sp-text{font-size:30px;font-weight:800;line-height:1.8;margin:12px 0}
.sp-more{margin-top:14px;text-align:right;font-size:17px;color:var(--muted)}
.sp-more summary{cursor:pointer;font-weight:800;min-height:44px;display:flex;align-items:center}
.sp-nav{display:flex;justify-content:space-between;gap:12px;margin-top:16px;flex-wrap:wrap}
.sp-nav .btn{flex:1 1 140px;justify-content:center;text-align:center}
.sp-card .tipbox{text-align:right;margin-top:14px}
.sp-badge{display:inline-block;background:#e8f5e9;color:#1b5e20;border-radius:999px;padding:0 10px;font-size:15px;font-weight:800}
.sped-head h1{font-size:26px}
/* adaptations: global sizing */
body.sped{font-size:21px;line-height:2}
body.sped .lead,body.sped .page-sub,body.sped .gdesc,body.sped .feedback{font-size:22px}
body.sped .btn{min-height:60px;font-size:21px}
body.sped .opt{min-height:88px;font-size:26px;padding:18px 20px}
body.sped .sped-q .opts{grid-template-columns:1fr 1fr;gap:16px}
body.sped .opt .oe{font-size:40px;line-height:1;min-width:52px;text-align:center}
body.sped .qtext{font-size:28px}
body.sped .citem,body.sped .bin,body.sped .ostep{min-height:78px;font-size:22px}
body.sped .mgrid.m4{grid-template-columns:repeat(4,1fr);max-width:720px;margin-inline:auto}
body.sped .scard p{font-size:26px}
body.sped .huge{min-height:76px;font-size:26px}
/* high contrast */
body.hc{--bg:#fff;--ink:#000;--muted:#111;background:#fff;background-image:none}
body.hc .card,body.hc .lcard,body.hc .sp-card,body.hc .utile,body.hc .gtile,body.hc .scard,body.hc .opt,body.hc .tipbox{border:3px solid #000!important;box-shadow:none!important;background:#fff!important;color:#000!important}
body.hc .btn.primary,body.hc .listen.playing{background:#000!important;color:#ff0!important;border-color:#000!important}
body.hc .listen{background:#ff0;color:#000;border-color:#000}
body.hc mark{background:#000;color:#ff0}
body.hc .opt.right{background:#c8e6c9!important}
body.hc .opt.wrong{background:#ffcdd2!important}
body.hc .topbar{background:#fff;border-bottom:3px solid #000}
/* reduced motion */
body.calm *,body.calm *::before,body.calm *::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important}
body.calm .listen.playing .li-ico{animation:none}
body.calm #confetti{display:none}
/* avatar placement */
.hero-mascot.has-av .mascot{display:none}
.hero-mascot.has-av{min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:flex-end}
@media (max-width:900px){
  body{--av-bottom:84px}
  .repeat-fab{bottom:calc(84px + env(safe-area-inset-bottom));left:110px}
  .autobtn small{display:none}
  .autobtn{padding:0 10px}
  .hud{gap:6px}
  .hero-mascot.has-av{min-height:170px}
  main{padding-bottom:120px}
}
@media (max-width:480px){
  .rankpill{display:none}
  .iconbtn{width:42px;height:42px;font-size:20px}
  .sp-text{font-size:25px}
  body.sped .sped-q .opts{grid-template-columns:1fr}
  .listen{font-size:16px}
}
@media print{.listen,.repeat-fab,.sped-card,.av-wrap{display:none!important}}

@media (min-width:1000px){ main{padding-left:190px} .hero-mascot.has-av{min-height:320px} }
@media (max-width:900px){
  .repeat-fab{left:8px;bottom:calc(84px + 104px + env(safe-area-inset-bottom));font-size:16px;min-height:46px;padding:6px 14px}
}

.listen.rep{background:#fff3e0;border-color:#ffb74d;color:#e65100;margin-inline-start:6px}
@media (max-width:900px){ .repeat-fab{display:none!important} }
.sp-step{scroll-margin-top:84px}