:root{--paper:#f5f4f0;--ink:#131b2b;--wine:#7a2021;--line:#d7d5cd;--muted:#5f625f;--gold:#936719;--white:#fffefa;font-family:'IBM Plex Sans',sans-serif;color:var(--ink);background:var(--paper)}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--wine);outline-offset:5px}button{touch-action:manipulation}button:hover:not(:disabled){border-color:var(--wine)}[hidden]{display:none!important}.shell{max-width:1240px;margin:auto;padding:0 48px}.masthead{min-height:88px;display:flex;align-items:center;gap:28px;border-bottom:1px solid var(--line)}.brand{text-decoration:none;font-size:27px;font-weight:700;letter-spacing:-1.3px;color:var(--ink)}.brand span{font-weight:400}.brand i{font-style:normal;color:var(--wine)}.edition{font-size:11px;letter-spacing:1.2px;margin-left:auto}.edition b{color:#b5b1a7;padding:0 10px}.text-button{background:transparent;border:0;border-bottom:1px solid transparent;padding:10px 0;font-size:13px;font-weight:500}.intro{display:grid;grid-template-columns:1fr 340px;gap:40px;padding:46px 0 36px;align-items:center}.eyebrow,.mono{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:1.4px;font-weight:500}.eyebrow{color:var(--wine);margin:0 0 14px}h1{font-size:clamp(42px,5vw,64px);line-height:1.05;letter-spacing:-2.5px;margin:0;font-weight:500}h1 em{font-style:normal;color:var(--wine)}.lead{font-size:17px;line-height:1.55;margin:20px 0 0;color:#51565b}.mission{position:relative;border-left:1px solid var(--line);padding:12px 0 12px 34px}.mission>.mono{color:var(--gold)}.mission p{font-size:27px;line-height:1.2;font-weight:500;letter-spacing:-.6px;margin:20px 0 16px}.mission>span:last-of-type{font-size:13px;line-height:1.6;color:var(--muted)}.mission svg{position:absolute;right:-4px;top:8px;width:88px;stroke:var(--gold);fill:none;stroke-width:2}.desk{border:1px solid var(--line);background:var(--white);border-radius:6px;overflow:hidden}.desk-top{display:flex;justify-content:space-between;gap:24px;align-items:center;padding:24px 30px;border-bottom:1px solid var(--line)}.desk-top .eyebrow{font-size:10px}.desk h2,.notebook h2{font-size:21px;letter-spacing:-.4px;font-weight:500;margin:6px 0 0}.progress-wrap{width:180px;font-size:12px;color:var(--muted)}progress{appearance:none;width:100%;height:4px;display:block;margin-top:10px;border:0;background:#e5e2d9}progress::-webkit-progress-bar{background:#e5e2d9}progress::-webkit-progress-value{background:var(--wine)}progress::-moz-progress-bar{background:var(--wine)}.workspace{display:grid;grid-template-columns:1fr 1fr;gap:44px;padding:28px 30px 20px}.evidence-area{background:#f0eee7;border:1px solid #e0dcd1;border-radius:4px;padding:16px 22px 12px;min-width:0;position:relative}.card-top{display:flex;align-items:center;justify-content:space-between;color:var(--muted);gap:10px}.card-top .mono{font-size:10px}.drag-hint{font-size:9px;letter-spacing:1px}.drag-hint span{font-size:21px;vertical-align:middle;margin-left:8px}.evidence{display:flex;align-items:center;flex-direction:column;border:1px solid transparent;width:100%;background:none;padding:0 8px 8px;cursor:grab;border-radius:4px}.evidence:active{cursor:grabbing}.evidence[aria-pressed=true]{outline:2px solid var(--wine);outline-offset:2px;background:#fffaf1}.evidence.dragging{opacity:.45}.illustration{display:block;width:144px;height:104px;margin:10px auto 4px}.illustration svg{width:100%;height:100%;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.illustration .accent{stroke:var(--wine)}.illustration .wash{fill:#e7dfcc;stroke:none}#card-text{font-size:23px;line-height:1.25;max-width:380px;min-height:87px;display:flex;align-items:center;font-weight:500;letter-spacing:-.4px}.select-hint{font-size:11px;color:var(--muted);margin-top:14px}.card-nav{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #dbd7cb;margin-top:10px;padding-top:10px;font-size:11px;color:var(--muted)}.card-nav button{width:40px;height:32px;border:1px solid #d3cfc3;background:transparent;border-radius:3px;font-size:18px}.decision-area>p:first-child{font-size:13px;color:var(--muted);margin:0 0 17px;line-height:1.5}.destination{display:flex;align-items:center;gap:16px;text-align:left;width:100%;background:var(--white);border:1px solid var(--line);border-radius:4px;padding:18px 16px;margin-bottom:12px;min-height:81px;transition:background .15s,transform .15s}.destination:hover,.destination.over{background:#f4eee7;transform:translateX(3px)}.destination.over{outline:2px solid var(--wine)}.zone-icon{font-size:32px;font-weight:400;width:34px;text-align:center;color:var(--wine)}.destination strong{font-size:17px;font-weight:500;display:block}.destination small{display:block;font-size:11px;color:var(--muted);margin-top:5px;line-height:1.4}.key{margin-left:auto;border:1px solid var(--line);padding:2px 5px;font:10px 'IBM Plex Mono',monospace;color:var(--muted)}.discuss{border-style:dashed;background:#faf8f1}.discuss .zone-icon{color:var(--gold)}.keyboard-note{font-size:10px;color:var(--muted);margin:16px 0 0}.feedback{border-top:1px solid var(--line);padding:16px 30px;font-size:14px;line-height:1.5;min-height:56px;background:#f8f7f2}.feedback[data-tone=correct]{border-left:4px solid #486149}.feedback[data-tone=retry]{border-left:4px solid var(--wine)}.feedback[data-tone=discuss]{border-left:4px solid var(--gold)}.notebook{margin-top:36px}.notebook-heading{display:flex;justify-content:space-between;align-items:end;gap:20px}.notebook .eyebrow{font-size:10px;margin-bottom:8px}#score{font-size:12px;color:var(--muted)}.filters{display:flex;gap:22px;border-bottom:1px solid var(--line);margin-top:22px;overflow-x:auto}.filters button{white-space:nowrap;background:none;border:0;border-bottom:2px solid transparent;padding:12px 0;font-size:12px}.filters button[aria-pressed=true]{border-bottom-color:var(--wine);color:var(--wine);font-weight:600}.filters span{margin-left:6px;font-family:'IBM Plex Mono',monospace;font-size:10px}.empty{color:var(--muted);font-size:14px;padding:18px 0}.entry{display:grid;grid-template-columns:32px 1fr auto;gap:16px;border-bottom:1px solid var(--line);padding:20px 0;align-items:start}.entry-number{font:11px 'IBM Plex Mono',monospace;color:var(--wine);padding-top:5px}.entry strong{font-size:15px;font-weight:500;display:block}.entry p{font-size:13px;line-height:1.5;color:var(--muted);margin:6px 0 0}.entry .tag{font-size:10px;color:var(--wine);display:block;margin-top:6px}.entry button{background:none;border:1px solid var(--line);padding:8px 12px;font-size:11px;border-radius:3px}.complete{text-align:center;padding:35px 24px;border-top:1px solid var(--line)}.complete h2{font-size:30px}.complete p{font-size:15px;line-height:1.6}.primary{background:var(--wine);border:1px solid var(--wine);color:white;padding:12px 22px;border-radius:3px;font-weight:500}.primary:hover{background:#601819}footer{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}footer p{font-size:12px;line-height:1.7}footer p span{color:var(--muted)}footer>div{display:flex;gap:26px}.teacher{font-size:12px;color:var(--muted);line-height:1.7;margin:22px 0 40px}.teacher summary{cursor:pointer;width:fit-content}.teacher p{max-width:850px}dialog{max-width:800px;width:calc(100% - 32px);max-height:85vh;border:1px solid var(--line);border-radius:6px;background:var(--paper);color:var(--ink);padding:30px}dialog::backdrop{background:#131b2b88}dialog h2{margin:0;font-size:25px;font-weight:500}.dialog-heading{display:flex;justify-content:space-between;align-items:start;gap:20px}dialog>p{font-size:14px;line-height:1.6;color:var(--muted)}.answer{border-top:1px solid var(--line);padding:16px 0}.answer strong{font-size:15px}.answer p{font-size:13px;line-height:1.6;margin:8px 0 0;color:var(--muted)}.answer .eyebrow{margin-bottom:7px;font-size:10px}#restart-dialog{max-width:460px}.dialog-actions{display:flex;justify-content:flex-end;gap:24px;margin-top:24px}@media(min-width:1400px){.intro{padding-top:50px;padding-bottom:42px}}@media(max-width:800px){.shell{padding:0 24px}.masthead{gap:14px}.edition{font-size:9px;letter-spacing:.3px}.edition b{padding:0 3px}.intro{grid-template-columns:1fr 240px;gap:24px}.mission{padding-left:22px}.mission svg{width:55px}.mission p{font-size:23px}.workspace{gap:22px;padding:22px}.evidence-area{padding:12px}#card-text{font-size:21px}.destination{padding:15px 12px;gap:10px}.destination strong{font-size:15px}.key{display:none}}@media(max-width:600px){.shell{padding:0 16px}.masthead{min-height:68px;flex-wrap:wrap;gap:8px}.brand{font-size:24px}.edition{margin-left:auto;max-width:160px;text-align:right;line-height:1.5}.masthead>#fullscreen{display:none}.intro{display:block;padding:30px 0 25px}.intro .eyebrow{font-size:9px;letter-spacing:1px}h1{font-size:46px;letter-spacing:-1.8px}.lead{font-size:15px;margin-top:15px}.mission{display:none}.desk-top{padding:18px;gap:14px}.desk h2{font-size:17px}.desk-top .eyebrow{font-size:9px}.progress-wrap{width:115px;flex-shrink:0;font-size:10px}.workspace{grid-template-columns:1fr;gap:20px;padding:18px}.evidence-area{padding:12px 16px}.illustration{height:76px;width:110px;margin-top:2px}#card-text{font-size:22px;min-height:60px}.select-hint{margin-top:8px}.destination{min-height:72px;margin-bottom:9px}.destination strong{font-size:16px}.destination small{font-size:11px}.decision-area>p:first-child{font-size:12px;margin-bottom:12px}.keyboard-note{display:none}.feedback{padding:14px 18px;font-size:13px}.notebook-heading{display:block}.notebook h2{font-size:19px}#score{display:block;margin-top:12px}.filters{gap:20px;margin-top:12px}.entry{gap:9px;grid-template-columns:23px 1fr}.entry button{grid-column:2;justify-self:start}.notebook{margin-top:28px}footer{align-items:start}footer>div{flex-direction:column;gap:4px;align-items:end}.text-button{font-size:12px}dialog{padding:20px}.dialog-heading h2{font-size:21px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.evidence{touch-action:none;user-select:none}.drag-ghost{position:fixed;z-index:100;pointer-events:none;transform:translate(-50%,-50%) rotate(-3deg);width:230px;padding:22px;background:#fffefa;border:2px solid #7a2021;border-radius:5px;font-size:18px;line-height:1.4;box-shadow:0 8px 24px #131b2b20}.evidence.dragging{opacity:.35}
/* Classroom surface: the task owns the viewport; review is opened on demand. */
#mode{font:inherit;font-size:14px;padding:12px;border:1px solid var(--line);border-radius:4px;background:var(--white);color:var(--ink);max-width:190px}
.board-title,.board-control{display:none}.board-response{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:20px;min-width:0}.board-response .eyebrow{margin:0}.board-response #response-title{font-size:clamp(28px,2.5vw,44px);line-height:1.15;margin:0}.board-response #response-text{font-size:clamp(23px,1.8vw,34px);line-height:1.4;margin:0}.board-response .primary{font-size:24px;min-height:64px;margin-top:8px}.board-mode .intro,.board-mode footer,.board-mode .teacher,.board-mode .edition,.board-mode .feedback{display:none}.board-mode .board-title,.board-mode .board-control{display:block}.board-mode .board-title{font-size:clamp(18px,1.6vw,28px);font-weight:600;margin-right:auto}.board-mode .masthead{gap:18px}.board-mode .masthead .text-button{font-size:18px;min-height:52px;white-space:nowrap}.board-mode .brand{font-size:24px}.board-mode .shell{max-width:none;padding:0 28px 20px}.board-mode .desk-top{padding:16px 24px}.board-mode .desk-top .eyebrow{display:none}.board-mode .desk-top h2{font-size:23px}.board-mode .progress-wrap{width:220px;font-size:18px}.board-mode .workspace{gap:30px;padding:24px;grid-template-columns:1fr 1fr}.board-mode #card-text{font-size:clamp(32px,2.6vw,48px);line-height:1.22;max-width:none;min-height:0}.board-mode .illustration{width:clamp(160px,17vw,290px);height:clamp(115px,19vh,215px);margin:12px auto}.board-mode .evidence{flex:1;justify-content:center;padding:12px;opacity:1}.board-mode .evidence:disabled{cursor:default}.board-mode .evidence-area{display:flex;flex-direction:column;padding:18px 24px}.board-mode .card-top .mono{font-size:17px}.board-mode .drag-hint{font-size:13px}.board-mode .select-hint,.board-mode .card-nav{font-size:18px}.board-mode .card-nav button{width:64px;height:48px;font-size:26px}.board-mode .decision-area{display:flex;flex-direction:column;justify-content:center;gap:16px;min-width:0}.board-mode .decision-area>p:first-child{font-size:21px;margin:0;line-height:1.4}.board-mode .destination{flex:1;max-height:175px;min-height:104px;margin:0;padding:20px;gap:20px}.board-mode .destination strong{font-size:clamp(25px,2vw,38px);line-height:1.2}.board-mode .destination small{font-size:clamp(17px,1.2vw,23px);line-height:1.3;margin-top:8px}.board-mode .zone-icon{font-size:44px;width:44px;flex-shrink:0}.board-mode .key{font-size:16px}.board-mode .keyboard-note{font-size:15px;margin:0}.board-mode .complete{margin:auto;border:0;max-width:1000px}.board-mode .complete h2{font-size:42px}.board-mode .complete p{font-size:28px}.board-mode .complete .primary{font-size:24px;padding:20px 28px}.board-mode dialog{max-width:none;width:calc(100% - 48px);height:calc(100dvh - 48px);max-height:none;padding:32px}.board-mode dialog h2{font-size:32px}.board-mode dialog .text-button{font-size:22px;min-height:56px}.board-mode dialog .entry strong,.board-mode dialog .answer strong{font-size:28px}.board-mode dialog .entry p,.board-mode dialog .answer p,.board-mode dialog>p{font-size:23px}.board-mode dialog .entry .tag,.board-mode dialog .entry-number,.board-mode dialog .answer .eyebrow{font-size:18px}.board-mode dialog .entry button,.board-mode dialog .filters button{font-size:22px;padding:16px}.board-mode dialog .filters span,.board-mode dialog #score{font-size:19px}.board-mode #restart-dialog{height:auto;max-width:650px}.board-mode #restart-dialog .primary{font-size:22px}.board-mode #notebook-dialog .notebook{margin-top:24px}.board-mode .empty{font-size:24px}
@media(min-width:900px) and (min-height:650px){.board-mode .shell{height:100dvh;display:flex;flex-direction:column;gap:16px}.board-mode .masthead{flex-shrink:0;min-height:76px}.board-mode .desk{flex:1;min-height:0;display:flex;flex-direction:column}.board-mode .desk-top{flex-shrink:0}.board-mode .workspace{flex:1;min-height:0}.board-mode .card-nav{margin-top:8px}.board-mode .evidence-area{min-height:0}}
@media(min-width:900px) and (max-height:800px){.board-mode .shell{padding:0 20px 12px;gap:10px}.board-mode .masthead{min-height:64px;gap:12px}.board-mode .masthead .brand{display:none}.board-mode .desk-top{padding:10px 20px}.board-mode .workspace{padding:16px;gap:24px}.board-mode .illustration{height:100px;margin:4px auto}.board-mode .evidence-area{padding:12px 18px}.board-mode .destination{padding:14px;min-height:92px}.board-mode .decision-area{gap:12px}.board-mode .select-hint{margin-top:8px}.board-mode .board-response{gap:14px}.board-mode .board-response #response-text{font-size:24px}.board-mode #card-text{font-size:36px}}
@media(max-width:1100px){.board-mode .masthead .brand{display:none}.board-mode .masthead{gap:12px}.board-mode .masthead .text-button{font-size:16px}.board-mode .board-title{font-size:20px}.board-mode #mode{font-size:14px;max-width:160px}}
@media(max-width:899px){.board-mode .shell{padding:0 16px 20px}.board-mode .masthead{flex-wrap:wrap;padding:12px 0;gap:8px}.board-mode .board-title{width:100%;font-size:23px}.board-mode #fullscreen{display:block}.board-mode .workspace{grid-template-columns:1fr;padding:18px}.board-mode .desk{margin-top:16px}.board-mode #card-text{font-size:30px}.board-mode .destination{min-height:105px}.board-mode .destination strong{font-size:24px}.board-mode .destination small{font-size:17px}.board-mode .desk-top{padding:16px;flex-wrap:wrap}.board-mode .progress-wrap{width:100%}.board-mode .card-top .mono{font-size:14px}.board-mode .keyboard-note{display:none}.board-mode .decision-area>p:first-child{font-size:18px}.board-mode dialog{padding:20px;width:calc(100% - 20px)}.board-mode dialog .entry strong{font-size:23px}.board-mode dialog .entry p{font-size:20px}.board-mode .card-nav{font-size:15px}.board-mode .board-response #response-text{font-size:24px}.masthead #mode{margin-left:auto}}

/* Approved playful direction: Yapay Zekâ Dedektif Bürosu */
:root{--coral:#ef6a62;--coral-soft:#ffe0dc;--teal:#3fa7a3;--teal-soft:#d9f2ef;--mustard:#e5b84b;--mustard-soft:#fff0bd;--sage:#77947c}
body{background-color:var(--paper);background-image:radial-gradient(circle at 1px 1px,#131b2b0a 1px,transparent 0);background-size:18px 18px}
.destination[data-choice=ai]{background:var(--coral-soft);border-color:var(--coral)}
.destination[data-choice=plain]{background:var(--teal-soft);border-color:var(--teal)}
.destination[data-choice=discuss]{background:var(--mustard-soft);border-color:var(--mustard);border-style:solid}
.destination[data-choice=ai] .zone-icon{color:#c63f3c}.destination[data-choice=plain] .zone-icon{color:#1b7773}.destination[data-choice=discuss] .zone-icon{color:#8a6410}
.board-mode .board-title{position:relative;padding:10px 20px 10px 54px;background:#fff0bd;border:1px solid #e5b84b66;border-radius:5px;box-shadow:3px 3px 0 #e5b84b42}
.board-mode .board-title::before{content:'⌕';position:absolute;left:17px;top:50%;transform:translateY(-53%);font-size:36px;line-height:1;color:var(--ink)}
.board-mode .masthead .text-button,#mode{border:1px solid var(--line);border-radius:8px;padding:10px 14px;background:#fffefa}
.board-mode .desk{border:2px solid #131b2b1c;box-shadow:0 8px 26px #131b2b10;background:#fffefaee}
.case-label{display:none}
.board-mode .case-label{display:block;position:absolute;z-index:3;left:24px;top:14px;padding:7px 15px;background:#fff0bd;border:1px solid #e5b84b80;border-radius:4px;font:600 12px 'IBM Plex Mono',monospace;letter-spacing:1px;color:var(--ink)}
.board-mode .card-top{padding-left:132px}
.board-mode .evidence-area{background:#fffaf0;border:2px solid var(--wine);border-radius:14px;box-shadow:8px 8px 0 #bed0be;isolation:isolate}
.board-mode .evidence-area::before,.board-mode .evidence-area::after{content:'';position:absolute;inset:8px -9px -9px 8px;border:1px solid #77947c80;border-radius:14px;background:#e8efe6;z-index:-2;transform:rotate(1deg)}
.board-mode .evidence-area::after{inset:4px -5px -5px 4px;background:#fff7e8;z-index:-1;transform:rotate(-.5deg)}
.board-mode .illustration .wash{fill:#f0dfbd}
.board-mode .destination{border:2px solid transparent;border-radius:16px;box-shadow:0 5px 0 #131b2b12;transform:none;transition:transform .16s ease,box-shadow .16s ease,filter .16s ease}
.board-mode .destination:hover,.board-mode .destination.over{transform:translateY(-4px);box-shadow:0 9px 0 #131b2b18;filter:saturate(1.08)}
.board-mode .destination[data-choice=ai]{background:var(--coral-soft);border-color:var(--coral)}
.board-mode .destination[data-choice=plain]{background:var(--teal-soft);border-color:var(--teal)}
.board-mode .destination[data-choice=discuss]{background:var(--mustard-soft);border-color:var(--mustard);border-style:solid}
.board-mode .destination[data-choice=ai] .zone-icon{color:#c63f3c}.board-mode .destination[data-choice=plain] .zone-icon{color:#1b7773}.board-mode .destination[data-choice=discuss] .zone-icon{color:#8a6410}
.board-mode .destination .key{background:#fffefa;border-color:#131b2b35;border-radius:4px;color:var(--ink)}
.board-mode progress{height:10px;border-radius:20px;overflow:hidden;background:repeating-linear-gradient(90deg,#dedbd2 0,#dedbd2 calc(6.25% - 4px),transparent calc(6.25% - 4px),transparent 6.25%)}
.board-mode progress::-webkit-progress-bar{background:repeating-linear-gradient(90deg,#dedbd2 0,#dedbd2 calc(6.25% - 4px),transparent calc(6.25% - 4px),transparent 6.25%)}
.board-mode progress::-webkit-progress-value{background:repeating-linear-gradient(90deg,var(--wine) 0,var(--wine) calc(6.25% - 4px),transparent calc(6.25% - 4px),transparent 6.25%)}
.board-mode .board-response{position:relative;padding:34px;border:3px solid var(--wine);border-radius:14px;background:#fffaf0;box-shadow:8px 8px 0 #f0dfbd}
.board-mode .board-response #response-title{display:inline-block;color:var(--wine);transform:rotate(-2deg);text-transform:uppercase;font-weight:700;border:3px solid var(--wine);padding:7px 14px}
.board-mode .board-response .primary{background:var(--ink);border-color:var(--ink);border-radius:8px}
.board-mode .notebook .entry{border-bottom-color:#131b2b1c}
@media(max-width:899px){.board-mode .board-title{padding-left:48px}.board-mode .evidence-area{box-shadow:5px 5px 0 #bed0be}.board-mode .case-label{left:16px}.board-mode .card-top{padding-left:120px}}