:root{font-family:system-ui,-apple-system,'Segoe UI',sans-serif;color:#17254b;background:#f3f7ff}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input,select{font:inherit}button{cursor:pointer}.top{background:white;padding:14px max(16px,calc((100vw - 1150px)/2));display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;box-shadow:0 3px 16px #17254b10}.brand{display:flex;align-items:center;gap:12px}.logo{font-size:32px;background:#e6edff;border-radius:15px;padding:9px}.brand strong{display:block;font-size:17px}.brand small{display:block;color:#64748b;font-weight:650;font-size:10px;letter-spacing:.6px;margin-top:3px}nav{display:flex;flex-wrap:wrap;gap:6px}nav button,.chip{background:transparent;border:0;color:#33446e;border-radius:12px;padding:10px 12px;font-weight:700}nav button:hover,.chip.on{background:#eaf1ff;color:#1d4ed8}main{max-width:1150px;padding:28px 18px 56px;margin:auto;min-height:72vh}.hero{background:linear-gradient(120deg,#dceaff,#fce5e3 70%,#fff0b9);padding:42px;border-radius:25px;display:grid;grid-template-columns:1.7fr .7fr;gap:20px;align-items:center}.eyebrow{font-weight:800;color:#3367c5;font-size:12px;letter-spacing:1.2px}h1{font-size:clamp(29px,4vw,46px);line-height:1.15;margin:10px 0}h2{margin:28px 0 14px;font-size:25px}h3{margin:0 0 9px}p{line-height:1.65;color:#506183}.hero-art{font-size:95px;text-align:center}.primary,.secondary,.choice{border:0;border-radius:14px;padding:13px 20px;font-weight:800}.primary{background:#2563eb;color:white}.secondary{background:#e5edff;color:#2450ad}.primary:hover{background:#1d4ed8}.stats{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.pill{background:#fff;border-radius:13px;padding:12px 18px;color:#33446e;font-weight:700}.tools{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:20px 0}.tools select,.tools input{padding:12px;border:1px solid #d5deef;border-radius:12px;background:white;max-width:100%}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}.card{background:white;border:1px solid #e2e9f5;border-radius:20px;padding:21px;text-align:left;transition:transform .12s,box-shadow .12s;display:flex;flex-direction:column;gap:7px;min-height:177px}.card:hover{transform:translateY(-3px);box-shadow:0 9px 23px #1c3e841c}.card .emoji{font-size:35px}.card h3{font-size:18px;margin:0}.card p{font-size:13px;margin:2px 0;flex:1}.tag{font-size:12px;background:#eef5ff;color:#235cba;padding:5px 9px;border-radius:9px;align-self:start}.panel{background:white;border:1px solid #dce6f5;padding:28px;border-radius:24px}.game-head{display:flex;gap:15px;justify-content:space-between;align-items:center;flex-wrap:wrap}.question{background:#eef5ff;border-radius:17px;padding:22px;margin:20px 0;text-align:center;font-size:24px;font-weight:750;white-space:pre-wrap}.visual{text-align:center;font-size:clamp(38px,7vw,65px);padding:12px;min-height:75px;line-height:1.6}.choices{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:11px;margin:17px 0}.choice{background:#f0f5ff;border:2px solid #d9e5ff;color:#173a76;font-size:18px;min-height:67px}.choice:hover{background:#dceaff}.choice:disabled{opacity:.7;cursor:default}.answer{padding:17px;border-radius:12px;font-weight:750;margin:16px 0}.answer.ok{background:#def8e8;color:#11653d}.answer.no{background:#fff0df;color:#995100}.muted{color:#64748b;font-size:13px}.badges{display:grid;grid-template-columns:repeat(auto-fit,minmax(175px,1fr));gap:15px}.badgecard{background:white;border:1px solid #e2e8f0;border-radius:18px;text-align:center;padding:25px}.badgecard .emoji{font-size:42px}.badgecard.locked{filter:grayscale(1);opacity:.55}.formline{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:14px 0}.formline input{flex:1;min-width:210px;border:1px solid #cbd5e1;border-radius:10px;padding:10px}.alert{background:#fff4d7;color:#77510f;padding:15px;border-radius:12px;line-height:1.5}.steps{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}.step{padding:12px 17px;border-radius:12px;background:#dbeafe;font-weight:800}.gridpath{display:grid;grid-template-columns:repeat(4,1fr);max-width:340px;gap:5px;margin:16px auto}.cell{aspect-ratio:1;display:grid;place-items:center;border-radius:10px;background:#eaf1ff;font-size:28px}.cell.goal{background:#fff1c1}footer{padding:20px;text-align:center;color:#62708d;background:#fff;font-size:12px}footer span{display:block;padding-top:5px}@media(max-width:660px){.hero{padding:25px;grid-template-columns:1fr}.hero-art{font-size:55px}nav button{font-size:12px;padding:9px}.panel{padding:18px}.question{font-size:19px}}

.school-logo{width:62px;height:62px;object-fit:contain;flex-shrink:0;border-radius:15px;background:#fff;border:1px solid #e5ebf5}
@media(max-width:660px){.school-logo{width:52px;height:52px}.brand strong{font-size:15px}}

.card:focus-visible,.choice:focus-visible,button:focus-visible{outline:3px solid #f59e0b;outline-offset:3px}

/* v4: tam saat, terazi, etkileşimli dokun-sürükle oyunları */
.clock-svg{width:min(300px,90%);max-height:320px;display:block;margin:auto;filter:drop-shadow(0 8px 12px #173a7622)}
.scale-svg{width:min(520px,100%);max-height:310px;display:block;margin:auto}
.activity-guide{background:#eaf4ff;border-radius:12px;padding:12px 16px;margin:12px 0;color:#244473;font-weight:650}
.math-work{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0}.math-work>div{background:#f7faff;border:2px solid #dbeafe;border-radius:18px;padding:15px;text-align:center}
.token-zone,.drop-zone{min-height:120px;padding:13px;display:flex;justify-content:center;align-items:center;align-content:center;gap:8px;flex-wrap:wrap;border:3px dashed #8db8f3;border-radius:15px;margin-top:12px;background:#fff}
.math-token{border:0;background:#fff4d7;font-size:33px;padding:4px 9px;border-radius:10px;cursor:grab;touch-action:manipulation}.placed-token{font-size:30px}.activity-status{text-align:center;font-weight:800;font-size:20px}.money-choice,.command-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:16px 0}.coin{width:85px;height:85px;border:4px solid #c5963e;border-radius:50%;background:#ffe3a0;color:#744500;font-weight:900;cursor:grab}.paint-tool{padding:13px;background:#fce7f3;border:2px dashed #e879b1;border-radius:15px;max-width:180px;text-align:center;margin:16px auto;cursor:grab}.fraction-board{display:grid;gap:7px;margin:18px auto;max-width:480px}.fraction-tile{height:82px;border:3px solid #6484bd;background:#fff;border-radius:10px;cursor:pointer}.fraction-tile.painted{background:#f9739b}.robot-grid{display:grid;grid-template-columns:repeat(4,1fr);max-width:400px;margin:12px auto;gap:5px}.robot-cell{height:76px;display:grid;place-items:center;border:2px solid #bdd5fc;background:#ebf4ff;border-radius:12px;font-size:32px}.robot-cell.obstacle{background:#d1d5db}.command-row .choice{min-width:105px}#command-display{text-align:center;font-weight:800;padding:10px;min-height:45px}
@media(max-width:620px){.math-work{grid-template-columns:1fr}.coin{width:65px;height:65px}.robot-cell{height:59px}.fraction-tile{height:65px}}

/* v5: hareketli terazi ve dokunulabilir matematik alanları */
.scale-arm{transition:transform .9s cubic-bezier(.2,.8,.2,1)}.scale-weight{transition:transform .8s ease}.selected-answer{border-color:#16a34a!important;background:#dcfce7!important;opacity:1!important}.voice-bar{display:flex;justify-content:center;margin:9px 0}.voice-bar button{font-size:14px;padding:9px 14px}.array-grid{display:grid;gap:6px;max-width:390px;margin:17px auto}.array-dot{display:grid;place-items:center;padding:6px;background:#eff6ff;border:2px solid #bfdbfe;border-radius:12px;font-size:30px;animation:popIn .35s both}.math-pieces{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin:20px 0}.number-piece,.number-static{min-width:66px;min-height:65px;border-radius:15px;display:grid;place-items:center;padding:12px;font-size:22px;font-weight:800}.number-piece{background:#dbeafe;color:#1e40af;border:2px solid #93c5fd;cursor:grab;transition:transform .15s}.number-piece:active{transform:scale(.93)}.number-static{background:#f3f4f6;color:#334155}.math-target{margin:16px auto;max-width:440px;min-height:76px;display:grid;place-items:center;background:#fff8e7;border:3px dashed #f59e0b;border-radius:18px;padding:14px;font-size:20px;font-weight:800;text-align:center}.success-pulse{background:#dcfce7;border-color:#16a34a;animation:popIn .35s both}.ruler{display:flex;max-width:540px;margin:18px auto;border-bottom:9px solid #eab308;padding-bottom:3px;overflow:hidden}.metre-segment{background:#fef3c7;flex:1;min-width:0;text-align:center;padding:20px 0;border-left:3px solid #92400e;font-size:12px;font-weight:800}.metre-segment:last-child{border-right:3px solid #92400e}.divide-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}.student-box{border:2px dashed #60a5fa;border-radius:16px;background:#eff6ff;min-height:125px;padding:13px;color:#1e3a8a;font-weight:800}.student-box div{font-size:21px;line-height:1.5;margin-top:12px}.book-model{display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;padding:15px;background:#f1f5f9;border-radius:14px;font-size:24px}.fraction-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.fraction-option{border:2px solid #bfdbfe;border-radius:15px;padding:15px;background:#eff6ff;font-size:18px;color:#1e40af}.fraction-strip{display:flex;min-height:48px;margin:12px 0;border:2px solid #475569;border-radius:8px;overflow:hidden}.fraction-strip span{flex:1;border-right:1px solid #64748b;background:#fff}.fraction-strip span.filled{background:#f472b6}@keyframes popIn{from{transform:scale(.89);opacity:.6}to{transform:scale(1);opacity:1}}@media(max-width:520px){.fraction-compare{grid-template-columns:1fr}.number-piece{min-width:58px}.scale-svg{max-height:280px}}

/* V6: Türkçe, fen, ülkemiz, sosyal bilgiler dokun-sürükle eşleştirme */
.pair-board{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0}.pair-column{display:grid;grid-template-rows:auto repeat(3,minmax(70px,auto));gap:10px}.pair-column h3{text-align:center}.pair-card{background:#eef5ff;border:2px solid #9bbef4;color:#193b75;padding:16px;border-radius:14px;min-height:72px;font-size:clamp(15px,2vw,19px);font-weight:750;text-align:center;cursor:grab;transition:background .25s,transform .25s}.pair-card:active{transform:scale(.97)}.pair-card.pair-active{background:#fde68a;border-color:#eab308}.pair-card.pair-done{background:#dcfce7;border-color:#22c55e;color:#166534;opacity:.75;cursor:default;animation:popIn .3s}.pair-card:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}@media(max-width:520px){.pair-board{gap:8px}.pair-card{padding:10px 5px;font-size:14px;min-height:80px}}

/* V7: çevrimdışı, dosyaya gömülü ülke bayrakları */
.flag-image{display:block;width:min(100%,138px);height:74px;object-fit:contain;margin:auto;filter:drop-shadow(0 2px 3px #0002);pointer-events:none}
.pair-card:has(.flag-image){padding:6px;min-height:92px;background:#fff}
.pair-card:has(.flag-image).pair-done{background:#dcfce7}

/* V8: transparent logo and question-history indicator */
.school-logo{background:transparent;border:none;border-radius:0;object-fit:contain}
.history-note{font-size:13px;color:#41608b;margin:10px 0;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.history-note strong{color:#1e40af}


/* v9: Hakkında sayfası */
.about-stack{display:grid;gap:22px}
.about-panel{background:white;border:1px solid #dce6f5;border-radius:24px;padding:28px}
.about-person{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:start}
.profile-photo{width:100%;max-width:220px;aspect-ratio:4/5;object-fit:cover;border-radius:22px;box-shadow:0 14px 28px #1c3e841f;border:1px solid #dce6f5;background:#f8fbff}
.kicker{display:inline-block;background:#eef5ff;color:#235cba;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.2px}
.info-list{margin:14px 0 0;padding-left:20px;color:#506183;line-height:1.7}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.mini-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-top:14px}
.mini-card{background:#f8fbff;border:1px solid #d9e7ff;border-radius:18px;padding:18px}
.mini-card strong{display:block;font-size:16px;margin-bottom:6px}
.note-box{background:linear-gradient(120deg,#eef5ff,#fff8df);border:1px solid #dce6f5;border-radius:18px;padding:18px}
@media(max-width:760px){.about-person{grid-template-columns:1fr}.profile-photo{max-width:220px}}


/* v10: colorful academy redesign */
:root{
  --bg-sky1:#bfe7ff;
  --bg-sky2:#ebf7ff;
  --brand-dark:#12306b;
  --brand-blue:#2563eb;
  --tile-shadow:0 14px 28px rgba(36,77,163,.14);
}
body{background:linear-gradient(180deg,#d9f0ff 0%,#eef7ff 28%,#f6fbff 100%);color:#14315f}
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);padding:14px max(16px,calc((100vw - 1180px)/2));}
.brand strong{font-size:24px;color:#11306c}.brand small{font-size:12px;color:#5f77a8}.school-logo{width:70px;height:70px;border-radius:50%;padding:4px;box-shadow:0 10px 18px rgba(0,0,0,.08)}
nav button{padding:11px 16px;border-radius:16px;font-size:16px;color:#1f3e77}
nav button:hover,.chip.on{background:#dbe9ff;color:#1650ce}
main{max-width:1280px;padding:24px 18px 60px}
.home-stage{position:relative;overflow:hidden;border-radius:38px;padding:28px 24px 36px;background:linear-gradient(180deg,#8ad0ff 0%,#c6ebff 44%,#e7f7ff 72%,#dff6be 100%);box-shadow:0 20px 40px rgba(59,130,246,.18);border:1px solid #b9ddff}
.home-stage:before,.home-stage:after{content:'';position:absolute;border-radius:50%;background:rgba(255,255,255,.65);filter:blur(0.4px)}
.home-stage:before{width:140px;height:48px;left:9%;top:7%}
.home-stage:after{width:110px;height:42px;right:18%;top:10%}
.hero-topline{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;position:relative;z-index:1}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap}
.circle-icon{width:54px;height:54px;border-radius:50%;border:3px solid rgba(255,255,255,.8);background:linear-gradient(180deg,#4fa4ff,#1559d8);color:#fff;display:grid;place-items:center;font-size:26px;box-shadow:var(--tile-shadow)}
.hero-banner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;margin:10px 0 18px;position:relative;z-index:1}
.kid-emoji{font-size:clamp(72px,10vw,120px);text-align:center;filter:drop-shadow(0 10px 10px rgba(0,0,0,.08))}
.aip-title{text-align:center}
.aip-mark{display:inline-flex;align-items:center;gap:16px;justify-content:center;flex-wrap:wrap}
.aip-mark img{width:90px;height:90px;object-fit:contain;filter:drop-shadow(0 10px 14px rgba(0,0,0,.08))}
.aip-mark .title-text{font-weight:900;font-size:clamp(30px,5vw,70px);line-height:1;color:#12306b;text-shadow:0 2px 0 rgba(255,255,255,.65)}
.aip-ribbon{display:inline-block;margin-top:8px;background:linear-gradient(180deg,#ff4336,#d91818);color:#fff;padding:10px 24px;border-radius:999px;font-size:clamp(22px,3vw,42px);font-weight:900;box-shadow:0 8px 18px rgba(194,21,21,.28)}
.hero-sub{font-size:18px;color:#174078;max-width:780px;margin:8px auto 0;text-align:center;font-weight:650}
.grade-ribbon{display:grid;grid-template-columns:1.05fr repeat(5,1fr);gap:10px;margin:24px 0 20px;position:relative;z-index:1;background:rgba(255,255,255,.72);padding:12px;border:2px solid rgba(255,255,255,.8);border-radius:28px;box-shadow:var(--tile-shadow)}
.grade-label,.grade-pill{border:none;border-radius:22px;padding:16px 14px;font-size:clamp(18px,2vw,22px);font-weight:900;box-shadow:inset 0 2px 0 rgba(255,255,255,.6),0 8px 16px rgba(0,0,0,.08)}
.grade-label{background:#f5fbff;color:#16386d;display:flex;align-items:center;gap:12px;justify-content:center}
.grade-pill{color:#fff;text-shadow:0 1px 0 rgba(0,0,0,.15)}
.grade-pill:hover{transform:translateY(-1px)}
.grade-0{background:linear-gradient(180deg,#c05eff,#8938db)}
.grade-1{background:linear-gradient(180deg,#ffca38,#ef8d06)}
.grade-2{background:linear-gradient(180deg,#74d82f,#3ea915)}
.grade-3{background:linear-gradient(180deg,#47b5ff,#1f73e0)}
.grade-4{background:linear-gradient(180deg,#ad62ff,#6a36d9)}
.subject-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative;z-index:1}
.subject-card{min-height:228px;border:none;border-radius:28px;padding:18px 14px 16px;text-align:center;color:#18335f;box-shadow:var(--tile-shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;font-weight:800;transition:transform .15s, box-shadow .15s}
.subject-card:hover{transform:translateY(-4px) scale(1.01);box-shadow:0 18px 28px rgba(23,58,118,.17)}
.subject-card .icon{font-size:80px;line-height:1}
.subject-card .label{font-size:clamp(22px,2.3vw,28px);line-height:1.12}
.subject-card .count{font-size:16px;color:#314d7a;font-weight:700}
.tile-visual{background:linear-gradient(180deg,#ffd6e9,#ffc5de)}
.tile-sound{background:linear-gradient(180deg,#fff6b8,#ffe88a)}
.tile-logic{background:linear-gradient(180deg,#d7f4ff,#bce9ff)}
.tile-ethics{background:linear-gradient(180deg,#efe5ff,#dcc8ff)}
.tile-code{background:linear-gradient(180deg,#dff2ff,#cae8ff)}
.tile-country{background:linear-gradient(180deg,#c9f2ff,#b2e6ff)}
.tile-social{background:linear-gradient(180deg,#ecdfff,#dbc9ff)}
.stats-ribbon{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:26px 0 18px;background:rgba(255,255,255,.8);padding:14px;border-radius:28px;border:2px solid rgba(255,255,255,.8);box-shadow:var(--tile-shadow);position:relative;z-index:1}
.stat-card{display:flex;gap:14px;align-items:flex-start;padding:12px 10px;min-height:110px}.stat-card .big{font-size:48px;line-height:1}.stat-card strong{display:block;font-size:17px;color:#1a3970}.stat-card span{display:block;color:#44618e;font-size:15px;line-height:1.3}
.hero-cta-wrap{text-align:center;position:relative;z-index:1;margin-top:14px}
.big-cta{font-size:clamp(24px,3vw,34px);padding:20px 46px;border-radius:999px;background:linear-gradient(180deg,#56d53c,#22af21);box-shadow:0 14px 22px rgba(34,175,33,.28);border:3px solid rgba(255,255,255,.7)}
.big-cta:hover{background:linear-gradient(180deg,#4bc936,#1fa01f)}
.home-panels{margin-top:24px;display:grid;grid-template-columns:1.25fr .95fr;gap:18px}
.home-card{background:#fff;border-radius:28px;padding:24px;border:1px solid #dce8f8;box-shadow:0 10px 20px rgba(37,99,235,.08)}
.home-card h2{margin-top:0;color:#18336b}
.quick-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
.quick-chip{background:#eef6ff;border:1px solid #d8e7ff;color:#214b96;border-radius:16px;padding:12px 14px;font-weight:800}
footer{background:#0d3675;color:#fff;padding:26px 20px;font-size:19px;border-top:4px solid #1e5dcc;margin-top:20px}.footer span{color:#dbe7ff}
footer a{color:#fff}
.panel{background:rgba(255,255,255,.97);border-radius:26px;border:1px solid #d9e7fb;box-shadow:0 12px 24px rgba(37,99,235,.08)}
.card{border-radius:24px;box-shadow:0 10px 20px rgba(37,99,235,.08)}
.question{background:linear-gradient(180deg,#f0f8ff,#e4f0ff);border:2px solid #d6e7ff;color:#14315f;border-radius:24px}
.choice{background:#fff;border:2px solid #cfe0ff;border-radius:18px;box-shadow:0 4px 10px rgba(37,99,235,.04)}
.choice:hover{background:#eef6ff}.secondary{background:#ebf4ff;color:#1d4ed8}.primary{background:linear-gradient(180deg,#2f83ff,#2157df);box-shadow:0 8px 18px rgba(37,99,235,.18)}
.alert{background:#fff8de;border:1px solid #f2d47a}
.about-panel,.mini-card,.note-box,.badgecard{box-shadow:0 10px 18px rgba(37,99,235,.06)}
@media(max-width:1080px){.subject-grid{grid-template-columns:repeat(3,1fr)}.stats-ribbon{grid-template-columns:repeat(2,1fr)}.home-panels{grid-template-columns:1fr}.hero-banner{grid-template-columns:1fr}.kid-emoji{display:none}.grade-ribbon{grid-template-columns:repeat(2,1fr)}.grade-label{grid-column:1/-1}}
@media(max-width:720px){.top{justify-content:center}.brand strong{font-size:19px}.brand small{font-size:10px}.school-logo{width:58px;height:58px}.home-stage{padding:20px 14px 28px;border-radius:28px}.subject-grid{grid-template-columns:repeat(2,1fr);gap:12px}.subject-card{min-height:185px;border-radius:22px}.subject-card .icon{font-size:58px}.subject-card .label{font-size:20px}.subject-card .count{font-size:14px}.stats-ribbon{grid-template-columns:1fr}.grade-ribbon{grid-template-columns:1fr}.grade-label,.grade-pill{padding:14px 12px}.aip-mark img{width:68px;height:68px}.hero-sub{font-size:15px}.big-cta{padding:16px 30px;font-size:24px}footer{font-size:16px}}

/* v11: Akıl-Zekâ oyun alanları */
.tile-brain{background:linear-gradient(180deg,#dffce9,#b4ebd4)}
.brain-heading{background:linear-gradient(120deg,#d8f0ff,#f8e7ff);padding:25px;border-radius:25px;margin-bottom:25px}
.brain-heading h1{margin:0 0 10px}
.brain-heading p{margin:6px 0}
.brain-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:16px}
.brain-card{border:2px solid #d9e7ff;border-radius:24px;background:#fff;display:flex;flex-direction:column;gap:10px;text-align:left;padding:24px;min-height:225px;box-shadow:0 12px 22px #254b8a18}
.brain-card:hover{transform:translateY(-4px);border-color:#60a5fa}
.brain-card .brain-emoji{font-size:52px}
.brain-card strong{font-size:23px;color:#163665}
.brain-card span:not(.brain-emoji){font-size:14px;color:#576b90;line-height:1.5;flex:1}
.brain-card small{color:#1d4ed8;font-weight:800}
.brain-toolbar{display:flex;justify-content:space-between;gap:12px;margin-bottom:16px}
.brain-panel{background:#fff;padding:24px;border-radius:28px;border:1px solid #d9e7ff;box-shadow:0 12px 25px #24478612}
.brain-panel h1{margin:0 0 10px}
.brain-panel p{margin:0 0 12px}
.brain-status{text-align:center;color:#173a75;font-weight:800;font-size:19px;margin:15px 0}
.brain-controls{display:flex;justify-content:center;align-items:center;gap:10px;flex-wrap:wrap;margin:17px 0}
.oxo-board{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-width:370px;margin:0 auto}
.oxo-cell{aspect-ratio:1;background:#e6f1ff;color:#1e40af;border:3px solid #8dbdf8;border-radius:18px;font-size:clamp(44px,7vw,72px);font-weight:900}
.oxo-cell:disabled{color:#1e40af;opacity:1}
.reversi-board,.check-board,.chess-board{display:grid;grid-template-columns:repeat(8,1fr);width:min(100%,540px);margin:auto;overflow:hidden;border:4px solid #254675;box-shadow:0 15px 22px #1e3a8a22}
.rev-cell,.check-cell,.ch-cell{aspect-ratio:1;display:grid;place-items:center;border:none;padding:0;min-width:0;min-height:0;position:relative}
.rev-cell{background:#27834e;border:1px solid #1b6b41}.rev-cell:disabled{opacity:1}
.rev-disc,.check-piece{width:78%;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;box-shadow:inset -5px -5px 7px #0003,0 2px 4px #0003}
.rev-disc.black{background:#18181b}.rev-disc.white{background:#f8fafc}
.rev-hint{width:20%;aspect-ratio:1;border-radius:50%;background:#8fe6ae}
.check-light{background:#f0dbaf}.check-dark{background:#d3a36e}
.check-piece.red{background:#dc4337;color:#fff}.check-piece.blue{background:#2563eb;color:#fff}
.check-cell.chosen,.ch-cell.selected{outline:4px solid #f59e0b;outline-offset:-4px}
.check-cell.possible:after,.ch-cell.target:after{content:'';position:absolute;width:24%;height:24%;border-radius:50%;background:#16a34a99;pointer-events:none}
.ch-cell{font-family:'DejaVu Sans','Segoe UI Symbol',serif;font-size:clamp(23px,5vw,48px);line-height:1;text-shadow:0 1px 2px #0004}
.ch-cell.light{background:#f0d9b5}.ch-cell.dark{background:#b58863}
.ch-cell:focus-visible,.rev-cell:focus-visible,.check-cell:focus-visible,.oxo-cell:focus-visible{z-index:2;outline:3px solid #fbbf24;outline-offset:-3px}
.morris-board{display:block;width:min(100%,480px);margin:auto;background:#f6e9ca;border-radius:24px;border:3px solid #d7b984;padding:18px;touch-action:manipulation}
.q-board-wrap{display:flex;justify-content:center;overflow:auto;padding:10px}
.q-board{--sq:clamp(24px,5.5vw,43px);--gap:8px;display:grid;grid-template-columns:repeat(9,var(--sq));grid-template-rows:repeat(9,var(--sq));gap:var(--gap);position:relative;background:#b8dbff;border:8px solid #4e79a5;border-radius:12px;padding:4px;width:max-content;isolation:isolate}
.q-cell{background:#f3e2bd;border-radius:6px;border:2px solid #d5b985;font-size:clamp(14px,3vw,28px);display:grid;place-items:center;padding:0;z-index:0}
.q-cell.possible{background:#bbf7d0;outline:2px solid #22c55e}
.q-cell.occupied{background:#e0eeff}
.q-wall,.q-wall-candidate{position:absolute;border:none;z-index:3;border-radius:4px;padding:0;pointer-events:none}
.q-wall{background:#824721}
.q-wall.h,.q-wall-candidate.h{height:var(--gap);width:calc(var(--sq)*2 + var(--gap));top:calc(4px + var(--r) * (var(--sq) + var(--gap)) + var(--sq));left:calc(4px + var(--c) * (var(--sq) + var(--gap)))}
.q-wall.v,.q-wall-candidate.v{width:var(--gap);height:calc(var(--sq)*2 + var(--gap));top:calc(4px + var(--r) * (var(--sq) + var(--gap)));left:calc(4px + var(--c) * (var(--sq) + var(--gap)) + var(--sq))}
.q-wall-candidate{background:#38bdf8aa;pointer-events:auto;cursor:pointer}
.q-wall-candidate:hover{background:#0284c7}
.selected-mode{background:#bfdbfe!important;outline:2px solid #2563eb}
@media(max-width:560px){.brain-panel{padding:14px}.brain-toolbar .secondary{font-size:13px;padding:10px}.brain-status{font-size:16px}.q-board{--sq:27px;--gap:5px;border-width:4px}.q-board-wrap{padding:0}.ch-cell{font-size:clamp(24px,7vw,39px)}}