*{box-sizing:border-box}
:root{--ink:#1b1f3b;--muted:#4a4f6a;--bg:#fff8e7;--ok:#1f7a3a;--no:#b42318;--blue:#2a59c9;
--font:"Chalkboard SE","Comic Sans MS","Comic Neue",ui-rounded,"Segoe UI",system-ui,sans-serif;
--he:"Arial Hebrew","Noto Sans Hebrew",Arial,system-ui,sans-serif}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
background-image:radial-gradient(circle at 10% 10%,#ffe9a8 0 60px,transparent 61px),radial-gradient(circle at 92% 20%,#d0ebff 0 80px,transparent 81px),radial-gradient(circle at 85% 95%,#ffd6e7 0 90px,transparent 91px);
background-attachment:fixed;min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden}
.top{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.8rem 1rem;position:relative}
h1{font-size:clamp(1.4rem,5vw,2.2rem);margin:.2rem 0;text-align:center;color:#3b2a8f;letter-spacing:.5px}
.backbtn{position:absolute;left:.6rem;top:50%;transform:translateY(-50%);font:inherit;font-size:1rem;font-weight:700;border:0;background:#fff;color:#3b2a8f;border-radius:999px;padding:.6rem 1rem;box-shadow:0 2px 0 #c9c3f0;cursor:pointer;min-height:44px}
.backbtn[hidden]{display:none}
main{flex:1;width:100%;max-width:980px;margin:0 auto;padding:0 1rem 1rem}
.screen[hidden]{display:none}
.lead{text-align:center;font-size:1.05rem;line-height:1.5;margin:.2rem auto 1rem;max-width:40rem;color:var(--muted)}
.he,[lang="he"]{font-family:var(--he)}
.lead .he{display:inline-block;font-size:.95rem}
.stats{text-align:center;font-weight:700;margin-bottom:.8rem;color:#3b2a8f}
.letters{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:.75rem}
.letter{width:100%;min-height:96px;border:0;border-radius:22px;font-family:inherit;color:var(--ink);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:.4rem;box-shadow:0 4px 0 rgba(27,31,59,.18);transition:transform .12s ease;position:relative}
.letter:hover{transform:translateY(-2px)}
.letter:active{transform:translateY(2px);box-shadow:0 2px 0 rgba(27,31,59,.18)}
.letter .L{font-size:2.3rem;font-weight:800;line-height:1}
.letter .n{font-size:.85rem;margin-top:.2rem}
.letter .pm{position:absolute;top:6px;right:8px;font-size:.75rem;font-weight:700;background:#fff;border-radius:999px;padding:1px 6px;color:var(--ok)}
.letter .pm.star{color:#9a6700}
.c0{background:#ffe066}.c1{background:#8ce99a}.c2{background:#a5d8ff}.c3{background:#ffc9c9}.c4{background:#d0bfff}.c5{background:#ffc078}
.reset-wrap{text-align:center;margin-top:1.5rem}
.ghost{font:inherit;background:transparent;border:2px dashed #8a84b8;color:#3b2a8f;border-radius:999px;padding:.6rem 1.2rem;cursor:pointer;min-height:44px}
button:focus-visible{outline:4px solid #2a59c9;outline-offset:3px}
.panel{background:#fff;border-radius:28px;padding:1.4rem 1.2rem;max-width:520px;margin:1rem auto;text-align:center;box-shadow:0 6px 0 rgba(59,42,143,.15)}
.big-letter{font-size:4rem;font-weight:800;margin:0;color:#3b2a8f}
.col-btns{display:flex;flex-direction:column;gap:.7rem;margin-top:1rem}
.btn{font:inherit;font-size:1.15rem;font-weight:700;border:0;border-radius:18px;padding:.9rem 1rem;cursor:pointer;min-height:56px;box-shadow:0 4px 0 rgba(27,31,59,.2);color:var(--ink)}
.btn[hidden]{display:none}
.go{background:#8ce99a}.redo{background:#ffc9c9}.plain{background:#e7e5f7}
.progress{display:flex;justify-content:space-between;align-items:center;font-weight:800;font-size:1.15rem;max-width:560px;margin:.2rem auto .4rem}
.ok{color:var(--ok)}.no{color:var(--no);margin-left:.6rem}
.bar{height:12px;background:#fff;border-radius:999px;max-width:560px;margin:0 auto 1rem;overflow:hidden;box-shadow:inset 0 0 0 2px #e2ddf7}
.fill{height:100%;width:0;background:linear-gradient(90deg,#ffd43b,#69db7c);border-radius:999px;transition:width .3s ease}
.scene{perspective:1200px;-webkit-perspective:1200px;max-width:560px;margin:0 auto}
.card{position:relative;display:block;width:100%;height:clamp(240px,44vh,340px);border:0;padding:0;background:transparent;cursor:pointer;font:inherit;color:inherit;
transform-style:preserve-3d;-webkit-transform-style:preserve-3d;transition:transform .55s cubic-bezier(.3,.7,.3,1.2)}
.card.flipped{transform:rotateY(180deg)}
.face{position:absolute;inset:0;border-radius:28px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.2rem;
backface-visibility:hidden;-webkit-backface-visibility:hidden;box-shadow:0 8px 0 rgba(27,31,59,.16)}
.front{background:#fff;border:5px solid #ffd43b}
.back{background:#fffbe6;border:5px solid #69db7c;transform:rotateY(180deg)}
.word{font-size:clamp(2rem,9vw,3.4rem);font-weight:800;line-height:1.15;text-align:center;overflow-wrap:anywhere;max-width:100%}
.word.small{font-size:clamp(1.2rem,5vw,1.6rem);color:var(--muted)}
.pos{margin-top:.5rem;font-size:1rem;color:var(--muted);font-style:italic}
.meaning{font-size:clamp(1.9rem,8vw,3rem);font-weight:700;margin:.4rem 0;text-align:center;line-height:1.25;unicode-bidi:isolate;overflow-wrap:anywhere;max-width:100%}
.tap{position:absolute;bottom:.8rem;font-size:.9rem;color:var(--muted)}
.tools{display:flex;justify-content:center;gap:.6rem;margin:1rem 0 .4rem}
.tool{font:inherit;font-weight:700;font-size:1rem;border:0;border-radius:999px;padding:.6rem 1.2rem;background:#fff;color:#2a3f9e;box-shadow:0 3px 0 #c5d3f5;cursor:pointer;min-height:48px}
.tool[hidden]{display:none}
.marks{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;max-width:560px;margin:.6rem auto 0}
.mark{font:inherit;font-size:1.15rem;font-weight:800;border:0;border-radius:20px;min-height:68px;padding:.6rem;cursor:pointer;color:#fff;background:#1f7a3a;box-shadow:0 5px 0 rgba(27,31,59,.25);transition:opacity .2s,transform .1s}
.mark:active{transform:translateY(3px)}
.ok-btn{background:#1f7a3a}.no-btn{background:#b42318}
.mark:disabled{opacity:.35;cursor:not-allowed}
.hint{text-align:center;color:var(--muted);font-size:.95rem;min-height:1.4em;margin:.6rem 0 0}
.trophy{font-size:3.5rem;margin:0}
h2{margin:.2rem 0 .4rem;color:#3b2a8f;font-size:1.8rem}
.sum-line{font-size:1.2rem;font-weight:700}
.small-title{font-weight:700;margin:.8rem 0 .3rem}
.wrong-list{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.4rem;justify-content:center}
.wrong-list li{background:#ffe3e3;border-radius:999px;padding:.3rem .8rem;font-size:1rem}
.wrong-list .he-m{font-family:var(--he);color:var(--muted)}
.foot{text-align:center;font-size:.8rem;color:var(--muted);padding:.6rem 1rem 1rem}
.foot p{margin:0}
@media (min-width:900px){.letters{grid-template-columns:repeat(7,1fr)}.letter{min-height:110px}.letter .L{font-size:2.8rem}}
@media (max-height:700px){.card{height:220px}}
@media (prefers-reduced-motion:reduce){.card,.fill,.letter{transition:none}}
.card.noanim{transition:none}
.a11y{max-width:40rem;margin:.6rem auto 0;text-align:start}.a11y summary{cursor:pointer;text-align:center;padding:.4rem;min-height:44px;display:flex;align-items:center;justify-content:center}.a11y p{font-size:.85rem;line-height:1.5}

.madeby{font-size:1.05rem;font-weight:600;margin-bottom:.4rem;letter-spacing:.02em}

/* practice modes */
.modes{background:#fff;border-radius:26px;padding:1rem;max-width:640px;margin:0 auto 1.2rem;box-shadow:0 5px 0 rgba(59,42,143,.13);text-align:center}
.modes-title{font-size:1.25rem;margin:0 0 .7rem}
.mode-btns{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.mode{font:inherit;color:var(--ink);border:0;border-radius:20px;padding:.8rem .5rem;min-height:110px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.15rem;box-shadow:0 4px 0 rgba(27,31,59,.2);transition:transform .12s ease}
.mode:hover:not(:disabled){transform:translateY(-2px)}
.mode:active:not(:disabled){transform:translateY(2px)}
.mode.mix{background:linear-gradient(135deg,#ffe066,#ffc078)}
.mode.sent{background:linear-gradient(135deg,#a5d8ff,#d0bfff)}
.m-ico{font-size:1.9rem;line-height:1}
.m-name{font-size:1.2rem;font-weight:800;line-height:1.15}
.m-sub{font-size:.85rem;color:#3d4160}
.mode:disabled{background:#ecebf3;color:#6b6f86;cursor:not-allowed;box-shadow:0 3px 0 rgba(27,31,59,.1)}
.mode:disabled .m-ico{filter:grayscale(1);opacity:.6}
.mode:disabled .m-sub{color:#6b6f86}
.mode-hint{margin:.7rem 0 0;font-size:.95rem;color:var(--muted);line-height:1.45}
.mode-hint.on{color:var(--ok);font-weight:700}
.qcard{background:#fff;border:5px solid #a5d8ff;border-radius:28px;max-width:560px;margin:0 auto;padding:1.2rem 1rem 1rem;box-shadow:0 8px 0 rgba(27,31,59,.14);text-align:center}
.q-label{margin:0 0 .5rem;color:var(--muted);font-size:.95rem}
.q-sent{font-size:clamp(1.35rem,5.6vw,1.9rem);font-weight:700;line-height:1.45;margin:0;overflow-wrap:anywhere}
.gap{display:inline-block;min-width:4.5em;border-bottom:4px dashed #7048e8;color:#7048e8;padding:0 .2em;line-height:1.1}
.gap.filled{border-bottom-style:solid;color:#1f7a3a;border-color:#69db7c;background:#ebfbee;border-radius:8px 8px 0 0}
.q-he{margin:.6rem 0 0;font-size:1.15rem;color:var(--muted)}
.q-he[hidden]{display:none}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:.7rem;max-width:560px;margin:1rem auto 0}
.opt{font:inherit;font-size:1.15rem;font-weight:800;border:0;border-radius:18px;min-height:64px;padding:.5rem .6rem;cursor:pointer;color:var(--ink);box-shadow:0 4px 0 rgba(27,31,59,.2);overflow-wrap:anywhere;transition:transform .1s}
.opt:active:not(:disabled){transform:translateY(3px)}
.o0{background:#ffe066}.o1{background:#8ce99a}.o2{background:#ffc9c9}.o3{background:#d0bfff}
.opt:disabled{cursor:default;opacity:.45}
.opt.right{background:#1f7a3a;color:#fff;opacity:1;box-shadow:0 0 0 4px #b2f2bb,0 4px 0 rgba(27,31,59,.2)}
.opt.wrong{background:#b42318;color:#fff;opacity:1}
.q-fb{text-align:center;font-size:1.25rem;font-weight:800;min-height:1.6em;margin:.8rem 0 0}
.q-fb.good{color:var(--ok)}.q-fb.bad{color:var(--no)}
.q-tools{align-items:center;flex-wrap:wrap}
.q-next{min-width:9rem}
.q-next[hidden]{display:none}
@media (max-width:360px){.mode-btns,.opts{grid-template-columns:1fr}.mode{min-height:84px}}
.gap{min-width:5em;min-height:1.1em;vertical-align:baseline}
.q-he [lang="he"]{font-weight:700;color:var(--ink)}
@media (max-width:640px){.top:has(.backbtn:not([hidden])) h1{padding-left:7.2rem;font-size:1.35rem;text-align:left}}