:root{--ink:#30323a;--muted:#70727b;--line:#e8e1e4;--aqua:#d7f4f3;--aqua-strong:#45aeb5;--rose:#ffd6dc;--rose-strong:#d66d86;--amber:#fcebc9;--amber-strong:#d79d34;--violet:#dcd7f3;--green:#d7f1df;--green-strong:#4f9d70}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:linear-gradient(145deg,#fff8f4,#f4fcfb 52%,#fbf8ff);color:var(--ink);font-family:"Source Sans 3",sans-serif;margin:0;min-height:100vh}button{font:inherit;-webkit-tap-highlight-color:transparent}button{cursor:pointer}
.topbar{align-items:center;background:rgba(255,253,251,.95);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;padding:12px clamp(18px,4vw,52px);position:relative;z-index:20}.brand{align-items:center;color:inherit;display:flex;gap:11px;text-decoration:none}.brand>span:last-child{display:flex;flex-direction:column}.brand strong{font:900 21px/1 Nunito,sans-serif}.brand small{color:var(--muted);font-size:11px;margin-top:3px}.back-link{background:var(--amber);border:1px solid #ead7ae;border-radius:999px;color:var(--ink);font:900 13px Nunito,sans-serif;padding:9px 15px;text-decoration:none}
main{padding:40px clamp(12px,4vw,50px) 58px}.hero{margin:0 auto 24px;max-width:1060px;text-align:center}.eyebrow,.modal-kicker{color:#82611f;font:900 12px Nunito,sans-serif;letter-spacing:.12em;text-transform:uppercase}.hero h1{font:900 clamp(34px,5vw,60px)/1.05 Nunito,sans-serif;letter-spacing:-.035em;margin:8px 0 12px}.hero h1 em{color:var(--rose-strong);font-style:normal}.hero>p{color:var(--muted);font-size:clamp(16px,2vw,20px);margin:0 auto;max-width:760px}.hero-pills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:17px}.hero-pills span{background:rgba(255,255,255,.8);border:1px solid var(--line);border-radius:999px;font:800 13px Nunito,sans-serif;padding:7px 12px}
.game-shell{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:25px;box-shadow:0 24px 65px rgba(66,52,60,.12);margin:0 auto;max-width:1120px;overflow:hidden;position:relative}.toolbar{align-items:center;background:#fff;display:flex;gap:18px;justify-content:space-between;padding:13px 17px}.stats{display:flex;gap:8px}.stats span{background:#fff;border:1px solid var(--line);border-radius:12px;color:var(--muted);font:900 9px Nunito,sans-serif;letter-spacing:.08em;min-width:78px;padding:7px 10px}.stats strong{color:var(--ink);display:block;font-size:17px;letter-spacing:0;margin-top:1px}.tools{display:flex;flex-wrap:wrap;gap:7px;justify-content:flex-end}.tools button{background:#fff;border:1px solid var(--line);border-radius:11px;color:var(--ink);font:900 12px Nunito,sans-serif;padding:9px 11px}.tools button:hover{background:var(--aqua);border-color:#acdce2}.progress{background:#f0ebed;height:5px}.progress i{background:linear-gradient(90deg,var(--aqua-strong),#8b7bc6,var(--rose-strong));display:block;height:100%;transition:width .35s ease;width:0}
.play-area{background:linear-gradient(150deg,rgba(215,244,243,.42),rgba(255,255,255,.92),rgba(252,235,201,.45));min-height:610px;padding:20px}.mission-card{align-items:center;background:#fff;border:1px solid var(--line);border-radius:20px;display:flex;gap:15px;margin-bottom:15px;padding:15px 18px}.mission-icon{align-items:center;background:linear-gradient(135deg,var(--aqua),var(--amber));border-radius:16px;display:flex;font:900 30px Nunito,sans-serif;height:58px;justify-content:center;min-width:58px}.mission-card small{color:#8a6924;font:900 11px Nunito,sans-serif;letter-spacing:.08em;text-transform:uppercase}.mission-card h2{font:900 clamp(22px,3vw,31px)/1.12 Nunito,sans-serif;margin:3px 0}.mission-card p{color:var(--muted);margin:0}
.arena-card{background:rgba(255,255,255,.93);border:1px solid var(--line);border-radius:21px;box-shadow:0 12px 28px rgba(62,57,62,.07);overflow:hidden}.arena{background-image:radial-gradient(circle at 15% 18%,rgba(255,255,255,.95) 0 3px,transparent 4px),radial-gradient(circle at 82% 28%,rgba(255,255,255,.9) 0 4px,transparent 5px),linear-gradient(160deg,#e8faf8,#fff9ef 58%,#f7f1ff);height:365px;position:relative}.balloon{--size:82px;align-items:center;background:var(--ball-color);border:4px solid rgba(255,255,255,.82);border-radius:50%;box-shadow:inset -9px -12px 0 rgba(40,45,55,.09),0 10px 19px rgba(48,50,58,.16);color:#30323a;display:flex;font:900 clamp(20px,3vw,28px) Nunito,sans-serif;height:var(--size);justify-content:center;left:var(--x);position:absolute;top:var(--y);transition:opacity .25s ease,transform .25s ease;width:var(--size);z-index:2}.balloon::before{background:rgba(255,255,255,.6);border-radius:50%;content:"";height:13px;left:17px;position:absolute;top:13px;width:8px;transform:rotate(32deg)}.balloon::after{border-left:7px solid transparent;border-right:7px solid transparent;border-top:12px solid color-mix(in srgb,var(--ball-color),#555 13%);bottom:-9px;content:"";left:50%;position:absolute;transform:translateX(-50%)}.arena.moving .balloon{animation:float var(--duration) ease-in-out infinite alternate;animation-delay:var(--delay)}.arena.paused .balloon{animation-play-state:paused}.balloon:hover:not(:disabled){filter:brightness(1.03);transform:scale(1.07)}.balloon:focus-visible{outline:5px solid rgba(69,174,181,.35);outline-offset:3px}.balloon.wrong{animation:shake .35s ease!important}.balloon.caught{opacity:0;pointer-events:none;transform:scale(.45) translateY(-25px)}@keyframes float{from{translate:-7px -5px}to{translate:10px 9px}}@keyframes shake{25%{translate:-7px 0}75%{translate:7px 0}}
.order-tray{align-items:center;background:#fff;border-top:1px solid var(--line);display:flex;gap:13px;min-height:82px;padding:12px 16px}.order-tray>span{color:var(--muted);font:900 10px Nunito,sans-serif;letter-spacing:.09em}.order-tray>div{display:flex;flex:1;flex-wrap:wrap;gap:7px}.caught-number{align-items:center;background:var(--aqua);border:1px solid #abdadd;border-radius:999px;display:flex;font:900 17px Nunito,sans-serif;height:42px;justify-content:center;min-width:48px;padding:0 12px}
.number-hint{background:#fffaf0;border:1px solid #eed6a8;border-radius:18px;margin-top:14px;padding:13px 16px}.hint-heading{align-items:center;display:flex;gap:10px;justify-content:space-between}.hint-heading b{font:900 14px Nunito,sans-serif}.hint-heading span{color:#76591f;font-size:13px}.number-line{height:58px;margin:8px 10px 0;position:relative}.number-line::before{background:#696b74;content:"";height:3px;left:0;position:absolute;right:0;top:24px}.tick{color:var(--muted);font:700 11px Nunito,sans-serif;position:absolute;text-align:center;top:15px;transform:translateX(-50%)}.tick::before{background:#696b74;content:"";display:block;height:18px;margin:0 auto 4px;width:2px}.tick.next{color:#9a4b5f;font-weight:900}.tick.next::before{background:var(--rose-strong);box-shadow:0 0 0 5px rgba(214,109,134,.18);width:4px}
.feedback{align-items:center;background:#fff;border:1px solid var(--line);border-radius:15px;display:flex;font-weight:700;gap:9px;margin-top:14px;min-height:52px;padding:10px 14px}.feedback b{font-size:20px}.feedback.good{background:#eaf8ef;border-color:#bde3ca;color:#286744}.feedback.hint{background:#fff5df;border-color:#ecd5a5;color:#735718}
.layer{align-items:center;background:rgba(255,250,248,.985);display:none;inset:0;justify-content:center;overflow:auto;padding:22px;position:absolute;z-index:30}.layer.show{display:flex}.modal{background:#fff;border:1px solid var(--line);border-radius:25px;box-shadow:0 28px 80px rgba(26,27,32,.25);max-width:690px;padding:30px;text-align:center;width:100%}.modal-icon{font-size:48px}.modal h2{font:900 clamp(27px,4vw,38px)/1.12 Nunito,sans-serif;margin:6px 0 8px}.modal>p{color:var(--muted);font-size:16px;line-height:1.45;margin:0 auto 18px;max-width:570px}.modal-steps{display:grid;gap:8px;grid-template-columns:repeat(3,1fr);margin:18px 0}.modal-steps span{background:#fffaf3;border:1px solid var(--line);border-radius:14px;font:800 13px Nunito,sans-serif;padding:11px 7px}.modal-steps b{align-items:center;background:var(--aqua);border-radius:50%;display:flex;height:27px;justify-content:center;margin:0 auto 6px;width:27px}.primary-action{background:linear-gradient(135deg,#bdebf0,#f6e4c1);border:0;border-radius:14px;color:#24484d;font:900 15px Nunito,sans-serif;padding:13px 22px}.finish-stats{display:flex;gap:8px;justify-content:center;margin:18px 0}.finish-stats span{background:#fff;border:1px solid var(--line);border-radius:13px;min-width:100px;padding:10px}.finish-stats strong{display:block;font:900 21px Nunito,sans-serif}
.sr-only{clip:rect(0 0 0 0);clip-path:inset(50%);height:1px;overflow:hidden;position:absolute;white-space:nowrap;width:1px}.teacher-guide{background:linear-gradient(135deg,#fff0dc,#edfafa);border:1px solid var(--line);border-radius:24px;display:grid;gap:22px;grid-template-columns:260px 1fr;margin:24px auto 0;max-width:1120px;padding:24px}.teacher-guide__intro>span{color:#945526;font:900 11px Nunito,sans-serif;letter-spacing:.1em;text-transform:uppercase}.teacher-guide h2{font:900 25px/1.15 Nunito,sans-serif;margin:7px 0}.teacher-guide p{color:#60636c;line-height:1.45;margin:0}.teacher-guide__grid{display:grid;gap:10px;grid-template-columns:repeat(3,1fr)}.teacher-guide article{background:rgba(255,255,255,.8);border-radius:15px;padding:15px}.teacher-guide h3{font:900 14px Nunito,sans-serif;margin:0 0 5px}footer{border-top:1px solid var(--line);color:var(--muted);display:flex;flex-wrap:wrap;font-size:13px;gap:14px 22px;justify-content:center;padding:17px}footer a{color:inherit;text-decoration:none}
.game-shell:fullscreen,.game-shell:-webkit-full-screen{background:#fffdfb;border:0;border-radius:0;display:flex;flex-direction:column;height:100vh;height:100dvh;max-width:none;overflow:hidden}.game-shell:fullscreen .toolbar,.game-shell:fullscreen .progress,.game-shell:-webkit-full-screen .toolbar,.game-shell:-webkit-full-screen .progress{flex:0 0 auto}.game-shell:fullscreen .play-area,.game-shell:-webkit-full-screen .play-area{flex:1;min-height:0;overflow:auto}.game-shell:fullscreen .arena,.game-shell:-webkit-full-screen .arena{height:min(52vh,490px)}
@media(max-width:780px){main{padding:28px 10px 40px}.toolbar{align-items:stretch;flex-direction:column}.stats,.tools{justify-content:center}.stats span{flex:1}.teacher-guide{grid-template-columns:1fr}.teacher-guide__grid{grid-template-columns:1fr}.arena{height:405px}.balloon{--size:72px}.hint-heading{align-items:flex-start;flex-direction:column;gap:3px}}
@media(max-width:520px){.brand small{display:none}.back-link{font-size:12px;padding:8px 10px}.hero h1{font-size:34px}.play-area{padding:12px}.tools button{flex:1;padding:8px 5px}.arena{height:430px}.balloon{--size:64px;font-size:20px}.order-tray{align-items:flex-start;flex-direction:column}.modal{padding:24px 15px}.modal-steps{gap:5px}.modal-steps span{font-size:11px;padding:8px 3px}.finish-stats span{min-width:0;padding:8px}.game-shell:fullscreen .arena,.game-shell:-webkit-full-screen .arena{height:420px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01s!important;transition-duration:.01s!important}}
.tick.caught{color:#22636a;font-size:13px;font-weight:900}.tick.caught::before{background:var(--aqua-strong);box-shadow:0 0 0 5px rgba(69,174,181,.16);width:4px}.tick.boundary{color:#999;font-size:10px}.tick.boundary::before{height:13px;margin-top:3px}
.balloon.popping{animation:balloonPop .3s ease-out forwards!important;pointer-events:none}@keyframes balloonPop{0%{opacity:1;scale:1}45%{opacity:1;scale:1.22}100%{opacity:0;scale:.18}}
.pop-ring{border:5px solid var(--pop-color);border-radius:50%;height:38px;left:var(--pop-x);opacity:0;pointer-events:none;position:absolute;top:var(--pop-y);translate:-50% -50%;width:38px;z-index:5;animation:ringBurst .42s ease-out forwards}.pop-particle{background:var(--pop-color);border-radius:50%;height:9px;left:var(--pop-x);pointer-events:none;position:absolute;top:var(--pop-y);translate:-50% -50%;width:9px;z-index:5;animation:particleBurst .45s ease-out forwards}@keyframes ringBurst{0%{opacity:1;scale:.4}100%{opacity:0;scale:2.5}}@keyframes particleBurst{0%{opacity:1;transform:rotate(var(--angle)) translateX(5px) scale(1)}100%{opacity:0;transform:rotate(var(--angle)) translateX(48px) scale(.25)}}
.arena .balloon{background:transparent;border:0;border-radius:48%;box-shadow:none;height:calc(var(--size)*1.18);isolation:isolate;padding:0;overflow:visible}
.arena .balloon::before,.arena .balloon::after{display:none}
.balloon-art{display:block;filter:hue-rotate(var(--ball-hue,0deg));height:auto;left:-12.5%;max-width:none;pointer-events:none;position:absolute;top:-1%;user-select:none;width:125%;z-index:0}
.balloon-number{color:#20283e;left:50%;pointer-events:none;position:absolute;text-shadow:0 1px 2px rgba(255,255,255,.65);top:46%;transform:translate(-50%,-50%);z-index:1}

/* Tek tam ekran düğmesi: tahta, bilgisayar ve tablet düzeni. */
html.series-board-open,html.series-board-open body{overflow:hidden;overscroll-behavior:none}
.game-shell.balloon-board{position:fixed;inset:0;z-index:1000;width:100%;height:100dvh;max-width:none;margin:0;border:0;border-radius:0;display:flex;flex-direction:column;overflow:hidden;background:#fffdfb}
.balloon-board .toolbar{flex:0 0 auto;flex-direction:row;padding:10px 16px;gap:10px}.balloon-board .progress{flex:0 0 5px}
.balloon-board .stats span{font-size:12px;min-width:75px}.balloon-board .stats strong{font-size:23px}
.balloon-board .tools button{font:800 18px "Source Sans 3",sans-serif;min-height:44px;padding:8px 12px}
.game-shell.balloon-board .play-area{flex:1;min-height:0;overflow:hidden;display:flex;flex-direction:column;gap:10px;padding:12px 18px}
.balloon-board .mission-card{flex:none;margin:0;padding:10px 16px}.balloon-board .mission-card h2{font-size:clamp(24px,2.3vw,36px)}.balloon-board .mission-card small{font-size:13px}.balloon-board .mission-card p{font-size:19px}
.balloon-board .arena-card{flex:1;min-height:0;display:flex;flex-direction:column}.game-shell.balloon-board .arena{height:auto;min-height:0;flex:1;container-type:size;overflow:hidden}
.balloon-board .arena .balloon{--size:min(9vw,24cqh);font-size:clamp(24px,4.5cqh,40px)}
.balloon-board .order-tray{flex:none;min-height:56px;padding:7px 14px;flex-direction:row;align-items:center}.balloon-board .order-tray>span{font-size:13px}.balloon-board .caught-number{font-size:22px;height:40px;min-width:46px}
.balloon-board .feedback{flex:none;margin:0;min-height:46px;font-size:20px;padding:7px 12px}
.balloon-board .number-hint{flex:none;margin:0;padding:7px 16px}.balloon-board .hint-heading{flex-direction:row}.balloon-board .hint-heading b,.balloon-board .hint-heading span{font-size:17px}.balloon-board .number-line{height:48px;margin-top:1px}.balloon-board .tick,.balloon-board .tick.caught{font-size:16px}.balloon-board .tick.boundary{font-size:14px}
.balloon-board .layer{align-items:flex-start}.balloon-board .modal{margin-block:auto;flex-shrink:0}
@media(max-width:900px){.balloon-board .toolbar{flex-wrap:wrap;padding:7px 10px}.balloon-board .stats{gap:5px}.balloon-board .stats span{min-width:62px;padding:4px 8px}.balloon-board .tools{flex:1}.balloon-board .tools button{font-size:16px;padding:7px}.balloon-board .arena .balloon{--size:min(10vw,24cqh)}.balloon-board .mission-card p{font-size:17px}}
@media(max-height:650px){.balloon-board .toolbar{padding:5px 10px}.balloon-board .stats strong{font-size:19px}.balloon-board .tools button{font-size:16px}.game-shell.balloon-board .play-area{gap:6px;padding:7px 12px}.balloon-board .mission-card{padding:6px 10px}.balloon-board .mission-icon{height:42px;min-width:42px;font-size:25px}.balloon-board .mission-card h2{font-size:24px}.balloon-board .mission-card p{display:none}.balloon-board .order-tray{min-height:43px}.balloon-board .caught-number{height:32px;font-size:19px}.balloon-board .feedback{min-height:36px;font-size:17px}.balloon-board .hint-heading span{display:none}.balloon-board .number-line{height:44px}}