@import url("https://fonts.googleapis.com/css2?family=Andika:wght@400;700&display=swap");
:root{--bg1:#f1faff;--bg2:#d8f3fc;--bg3:#a8daec;--ink:#123b4a;--soft:#426d7d;--blue:#176b8a;--deep:#0f536e;--cyan:#55b8d8;--edge:#73bfd8;--card:#f9fdffee}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;font-family:"Segoe UI",Arial,sans-serif;color:var(--ink);background:radial-gradient(circle at 10% 8%,#fff,transparent 24%),radial-gradient(circle at 90% 16%,#e7faffcc,transparent 21%),linear-gradient(145deg,var(--bg1),var(--bg2) 48%,var(--bg3));overflow-x:hidden}
button,a{font:inherit}.skip{position:fixed;top:-100px;left:12px;z-index:100;padding:10px 14px;border-radius:10px;background:#062f42;color:#fff;font-weight:800}.skip:focus{top:12px}.wrap{position:relative;z-index:1;max-width:1240px;margin:auto;padding:34px 18px 46px}.hero{padding:27px 30px 25px;border:1px solid #fffffff7;border-radius:32px;background:linear-gradient(145deg,#fffffff7,#daf6ffe6);box-shadow:inset 0 2px 0 #fff,0 9px 0 #75bdd4,0 26px 50px #19658433;transform:translateY(-4px)}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:9px}.mark,.badge{display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,#42a9cd,var(--blue));box-shadow:inset 0 1px 0 #ffffff59,0 4px 0 var(--deep);font-weight:900}.mark{width:44px;height:44px;border-radius:15px;font-size:1.35rem}.eyebrow{color:#31758e;font-size:.78rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}h1{margin:0 0 8px;color:#145b75;font-size:clamp(2.3rem,5vw,3.7rem);line-height:1;text-shadow:0 2px #fff,0 5px 12px #186b8b29}.tagline{margin:0;color:#226b85;font-size:clamp(1.05rem,2vw,1.28rem);font-weight:850}.intro{max-width:900px;margin:8px 0 0;color:var(--soft);line-height:1.55}.meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px 22px;margin-top:17px;padding-top:15px;border-top:1px solid #2d7e9b38;color:#35697c;font-size:.92rem;font-weight:700}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid #2a8eb1;border-radius:13px;padding:10px 14px;color:#fff;background:linear-gradient(145deg,#2a8eb1,var(--blue));box-shadow:inset 0 1px #ffffff47,0 4px 0 var(--deep);font-weight:800;text-decoration:none;cursor:pointer}.btn.secondary{color:#155f7b;background:linear-gradient(145deg,#fff,#e5f7fd);border-color:#a5d7e7;box-shadow:0 4px 0 #a4d3e2}.btn:focus-visible,a:focus-visible{outline:3px solid #8b3f00;outline-offset:3px}.btn:hover{transform:translateY(-2px)}.guide{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:15px;margin:25px 0;padding:17px 20px;border:2px solid #64b9d4;border-radius:22px;background:linear-gradient(145deg,#f4fdfffa,#b9e8f7f5);box-shadow:inset 0 2px #fff,0 7px 0 #6bb7d0,0 18px 34px #1a65822b}.guide strong{display:block;font-size:1.2rem}.guide small{color:#477486;font-weight:650}.core-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:21px;align-items:start}.core{padding:21px;border:1px solid #fffffff7;border-radius:28px;background:var(--card);box-shadow:inset 0 2px #fff,0 8px 0 var(--edge),0 24px 44px #176b8a2e}.core-head{display:flex;align-items:center;gap:13px;margin-bottom:18px}.badge{flex:0 0 49px;height:49px;border-radius:16px;font-size:1.18rem}.core h2{margin:0;font-size:1.45rem}.core p{margin:3px 0 0;color:var(--soft);font-size:.88rem}.groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.group{display:flex;overflow:hidden;border:1px solid #b4dfec;border-radius:16px;background:linear-gradient(145deg,#fff,#e9f8fd);box-shadow:inset 0 1px #fff,0 4px 0 #a4d5e4,0 9px 15px #176b8a17}.group a{flex:1;min-width:0;padding:11px 7px;color:#155b75;text-align:center;text-decoration:none;font-weight:850}.copy{width:34px;border:0;border-left:1px solid #c5e6f0;color:#2f7891;background:#dcf5fccc;cursor:pointer;font-weight:900}footer{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 18px;margin-top:30px;color:#346a7d;font-size:.9rem;font-weight:700}footer a{color:#23657e}
@media(max-width:780px){.core-grid{grid-template-columns:1fr}.groups{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:560px){.wrap{padding:20px 13px 38px}.hero{padding:22px 19px}.eyebrow{font-size:.7rem;letter-spacing:.08em}.meta>*{width:100%}.guide{grid-template-columns:auto 1fr;padding:15px}.guide .btn{grid-column:1/-1;justify-self:start}.core{padding:17px 14px}.groups{grid-template-columns:repeat(2,minmax(0,1fr))}}

.activity-shell{width:min(680px,100%);margin:auto}.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.activity-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.activity-title{margin:0;color:#145b75;font-size:1.35rem}.counter{padding:5px 13px;border-radius:999px;color:#23677e;background:#d8f3fc;font-weight:800}.stage{perspective:1200px;touch-action:pan-y}.flashcard{position:relative;width:100%;height:430px;cursor:pointer;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.4,.2,.2,1);user-select:none;-webkit-user-select:none}.flashcard.flipped{transform:rotateY(180deg)}.face{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:30px;border:1px solid #fff;border-radius:30px;background:linear-gradient(145deg,#fff,#dcf5fd);box-shadow:inset 0 2px #fff,0 9px 0 #75bdd4,0 24px 45px #176b8a2b;backface-visibility:hidden;-webkit-backface-visibility:hidden}.back{transform:rotateY(180deg);overflow-y:auto}.card-head{display:flex;justify-content:space-between;align-items:center}.pos{padding:7px 11px;border-radius:8px;color:#fff;background:var(--blue);font-size:.8rem;font-weight:850;letter-spacing:.05em}.speak{width:44px;height:44px;border:1px solid #8ccbe0;border-radius:50%;color:var(--blue);background:#fff;cursor:pointer}.word-wrap{margin:auto 0;text-align:center}.word{font-size:clamp(2.7rem,10vw,4.2rem);font-weight:850;line-height:1.12}.word.spellable{font-family:"Andika","Comic Sans MS",sans-serif;font-weight:700}.word-letter{display:inline-block;color:inherit;transform-origin:center bottom;transition:color .14s,transform .14s}.word.spelling .word-letter:not(.active){color:#7898a4}.word-letter.active{color:#d85791;transform:scale(1.18) translateY(-.06em)}.card-foot{display:flex;align-items:flex-end;gap:10px;min-height:39px}.card-foot .hint{flex:1}.spell{flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;border:1px solid #8ccbe0;border-radius:999px;padding:8px 12px;color:var(--blue);background:#fff;box-shadow:0 3px 0 #a4d3e2;font-weight:850;cursor:pointer}.spell[hidden]{display:none}.spell:focus-visible{outline:3px solid #8b3f00;outline-offset:3px}.hint{text-align:center;color:#568091;font-size:.86rem;font-weight:700}.translation-row{display:block;margin-bottom:12px}.label{display:block;color:#35758d;font-size:.76rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;text-align:left}.translation{display:block;width:100%;margin-top:8px;direction:rtl;text-align:center;color:var(--blue);font-size:clamp(2.25rem,9vw,3.8rem);font-weight:850;line-height:1.15}.synonyms{display:none;margin-bottom:12px;padding:8px 12px;border-radius:10px;background:#f3f9fc;color:#355f70}.details-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.9fr);gap:12px}.details-grid.family-empty{grid-template-columns:1fr}.example-box{display:block;padding:11px 14px;border-left:4px solid #d85791;border-radius:0 10px 10px 0;background:#fdf2f8;color:#831843;text-align:center}.example-en{font-size:1.2rem;font-weight:800}.example-he{margin-top:5px;color:#9d174d;font-size:1rem;font-weight:650}.example-audio{margin-left:8px;border:0;border-radius:999px;padding:5px 8px;color:#831843;background:#fff;cursor:pointer}.family-box{padding:10px 12px;border-left:4px solid #2fac73;border-radius:0 10px 10px 0;background:#ecfdf5;color:#166534}.family-title{margin-bottom:6px;font-weight:850}.family-list{display:flex;flex-direction:column;gap:4px;margin:0;padding:0;list-style:none}.family-word{font-weight:800}.family-pos{font-size:.8rem;color:#4b5563}.controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:22px}.controls .btn{width:100%;padding-inline:8px}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.activity-head{gap:12px;flex-wrap:wrap}.activity-progress{display:flex;align-items:center;gap:9px;min-height:44px;padding:6px 10px;border:1px solid #a7d6e6;border-radius:14px;color:#315f70;background:#f4fbfe;box-shadow:inset 0 1px #fff}.activity-progress__symbol{display:grid;place-items:center;width:32px;height:32px;border-radius:10px;color:#315f70;background:#dbeef5;font-size:1.35rem;font-weight:950}.activity-progress__copy{display:flex;min-width:118px;flex-direction:column;line-height:1.15}.activity-progress__copy strong{font-size:.88rem}.activity-progress__copy small{margin-top:3px;color:#517785;font-size:.72rem;font-weight:700}.activity-progress[data-status="in_progress"]{border-color:#e4be52;background:#fff8d8}.activity-progress[data-status="in_progress"] .activity-progress__symbol{color:#6d4a00;background:#ffe89a}.activity-progress[data-status="mastered"]{border-color:#78c49a;background:#e8f8ef}.activity-progress[data-status="mastered"] .activity-progress__symbol{color:#0c633b;background:#ccefdc}.activity-progress[data-status="unavailable"]{border-color:#cbd5e1;background:#f8fafc}.activity-progress[data-status="unavailable"] .activity-progress__symbol{color:#6b7280;background:#e5e7eb}@media(max-width:560px){.wrap{padding-top:20px}.flashcard{height:430px}.face{padding:25px 20px}.details-grid{grid-template-columns:1fr}.topbar .btn{padding:9px 11px}.activity-head{align-items:flex-start}.activity-title{flex-basis:100%;font-size:1.15rem}.activity-progress{flex:1}.controls{gap:7px}.controls .btn{font-size:.86rem}}@media(forced-colors:active){.activity-progress,.activity-progress__symbol{border:1px solid ButtonText}}
.audio-attention{animation:audio-attention 3.8s ease-in-out .35s infinite}@keyframes audio-attention{0%,100%{transform:translateY(0) scale(1);background:linear-gradient(145deg,#fff,#e5f7fd);border-color:#a5d7e7;color:#155f7b;box-shadow:0 4px 0 #a4d3e2,0 0 0 0 #f5b40000}8%,18%{transform:translateY(-3px) scale(1.07);background:linear-gradient(145deg,#fff7c7,#ffd34f);border-color:#d89100;color:#573b00;box-shadow:0 5px 0 #a96d00,0 0 0 7px #ffd34f99,0 0 32px #ffd34fcc}13%{transform:translateY(0) scale(1);background:linear-gradient(145deg,#fff,#e5f7fd);border-color:#a5d7e7;color:#155f7b;box-shadow:0 4px 0 #a4d3e2,0 0 0 0 #f5b40000}32%,42%{transform:translateY(-3px) scale(1.07);background:linear-gradient(145deg,#fff7c7,#ffd34f);border-color:#d89100;color:#573b00;box-shadow:0 5px 0 #a96d00,0 0 0 7px #ffd34f99,0 0 32px #ffd34fcc}37%{transform:translateY(0) scale(1);background:linear-gradient(145deg,#fff,#e5f7fd);border-color:#a5d7e7;color:#155f7b;box-shadow:0 4px 0 #a4d3e2,0 0 0 0 #f5b40000}56%,66%{transform:translateY(-3px) scale(1.07);background:linear-gradient(145deg,#fff7c7,#ffd34f);border-color:#d89100;color:#573b00;box-shadow:0 5px 0 #a96d00,0 0 0 7px #ffd34f99,0 0 32px #ffd34fcc}61%{transform:translateY(0) scale(1);background:linear-gradient(145deg,#fff,#e5f7fd);border-color:#a5d7e7;color:#155f7b;box-shadow:0 4px 0 #a4d3e2,0 0 0 0 #f5b40000}80%,90%{transform:translateY(-3px) scale(1.07);background:linear-gradient(145deg,#fff7c7,#ffd34f);border-color:#d89100;color:#573b00;box-shadow:0 5px 0 #a96d00,0 0 0 7px #ffd34f99,0 0 32px #ffd34fcc}85%{transform:translateY(0) scale(1);background:linear-gradient(145deg,#fff,#e5f7fd);border-color:#a5d7e7;color:#155f7b;box-shadow:0 4px 0 #a4d3e2,0 0 0 0 #f5b40000}}@media(prefers-reduced-motion:reduce){.flashcard,.word-letter{transition:none}.audio-attention{animation:none}}