@charset "UTF-8";
:root{--paper:#f7f5ee;--ink:#182b2d;--muted:#5b6d68;--green:#173f39;--green-soft:#eaf0e8;--lime:#d9efad;--orange:#d4643b;--orange-soft:#fff0e4;--line:#dce1d7;--white:#fffefa;--purple:#66578d;--red:#a83739;--radius:20px;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #e38b50;outline-offset:4px}button{color:inherit}button svg{pointer-events:none}button span{pointer-events:none}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;z-index:30;left:20px;top:-80px;background:var(--green);color:white;padding:12px}.skip-link:focus{top:12px}
.site-header{border-bottom:1px solid var(--line);background:var(--paper)}.header-inner{max-width:1256px;padding:25px 34px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;gap:12px;text-decoration:none;font-size:20px;font-weight:760;align-items:center;letter-spacing:-.5px}.brand-mark{width:43px;height:43px;border-radius:13px;background:var(--green);color:var(--lime);font:italic 36px Georgia;position:relative;padding-left:10px;line-height:44px}.brand-mark span{font:17px system-ui;position:absolute;top:2px;right:6px}.brand small{font-size:9px;letter-spacing:1.35px;display:block;color:var(--muted);margin-top:3px;font-weight:650}.brand-arrow{color:var(--orange)}nav{display:flex;gap:4px;flex-wrap:wrap}.nav-button{background:transparent;border:0;padding:11px 14px;font-size:14px;font-weight:650;border-radius:10px;color:var(--muted);min-height:44px}.nav-button.active{background:var(--green-soft);color:var(--green)}.nav-button span{display:inline-flex;background:#e4e8dd;min-width:21px;height:21px;align-items:center;justify-content:center;font-size:11px;border-radius:6px;margin-left:4px}.nav-button:hover{background:#e8eddf}
main{max-width:1188px;margin:auto}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:64px;align-items:center;padding:59px 0 60px}.eyebrow{font-size:11px;letter-spacing:1.4px;font-weight:780;color:var(--muted);display:flex;gap:8px;align-items:center}.tiny-star{color:var(--orange);font-size:23px}h1{font-size:clamp(42px,5vw,66px);font-weight:800;line-height:1.04;letter-spacing:-3px;margin:19px 0 24px}h1 span{color:var(--green)}.hero-copy>p{font-size:18px;color:var(--muted);line-height:1.65;margin:0 0 28px}.challenge-button{display:flex;align-items:center;gap:13px;border:0;border-radius:13px;background:var(--green);color:var(--white);padding:14px 19px;box-shadow:0 4px 0 #d0d8c6;transition:transform .15s;text-align:left;font-size:14px;font-weight:720;min-height:62px}.challenge-button:hover{transform:translateY(-2px);background:#23524a}.challenge-button small{display:block;color:#d4e3ce;font-size:11px;font-weight:450;margin-top:4px}.challenge-symbol{font-size:25px;color:var(--lime)}.challenge-button>span:last-child{margin-left:7px;font-size:20px}.hero-lab{position:relative;background:#e8eee2;border:1px solid #c8d4bf;border-radius:24px;padding:28px 29px 20px;transform:rotate(1.5deg);box-shadow:7px 9px 0 #e3e7db;margin:10px 25px 0 0}.lab-topline{font-size:10px;font-weight:730;letter-spacing:1.4px;color:#4a6a55;display:flex;align-items:center;gap:6px}.lab-dot{width:6px;height:6px;border-radius:50%;background:#548262}.lab-phrase{font-size:30px;letter-spacing:-1px;font-weight:730;position:relative;margin:22px 0 5px;display:inline-block}.pencil-underline{position:absolute;background:#c2d99d;height:8px;left:0;bottom:1px;width:100%;z-index:-1;transform:rotate(-1deg)}.lab-road svg{width:100%;display:block}.hero-svg-label{font-size:12px;fill:var(--green);font-weight:650}.lab-translation{font-size:19px;line-height:1.5;color:#4b6353;margin:13px 0 20px}.lab-translation strong{color:var(--green);font-weight:720}.lab-link{border:0;border-top:1px solid #c8d4bf;padding:17px 0 0;background:transparent;font-size:13px;font-weight:720;display:flex;width:100%;justify-content:space-between;text-align:left;color:var(--green)}.lab-sticker{background:var(--lime);color:var(--green);position:absolute;right:-22px;top:-24px;border:1px solid #b9ce95;padding:12px 13px;font-size:11px;font-weight:850;line-height:1.4;border-radius:12px;transform:rotate(9deg);box-shadow:2px 3px 0 #c6d3b9}
.library{padding:31px 0 0;scroll-margin-top:20px;border-top:1px solid var(--line)}.library-heading{display:flex;align-items:flex-end;justify-content:space-between;margin:0 0 22px;gap:15px}.library-heading .eyebrow{margin:0 0 8px;font-size:10px}h2{font-size:29px;font-weight:760;letter-spacing:-1px;line-height:1.2;margin:0}.library-total{font-size:12px;color:var(--muted);white-space:nowrap;padding-bottom:4px}.search-box{display:flex;align-items:center;background:var(--white);border:1.5px solid #b2c0b1;border-radius:16px;padding:0 22px;gap:18px;transition:box-shadow .15s;min-height:65px}.search-box:focus-within{border-color:var(--green);box-shadow:0 0 0 4px #e0e9d8}.search-box input{width:100%;border:0;background:transparent;outline:0!important;min-height:63px;color:var(--ink);font-size:17px;padding:0;min-width:0}.search-box input::placeholder{color:#79877d}.search-box input::-webkit-search-cancel-button{display:none}.search-icon{display:block;width:18px;height:18px;border:2px solid var(--green);border-radius:50%;position:relative;flex-shrink:0}.search-icon:after{content:"";width:8px;height:2px;background:var(--green);position:absolute;transform:rotate(45deg);right:-6px;bottom:-3px}.search-clear{border:0;background:#edf0e6;min-width:35px;min-height:35px;border-radius:8px;font-size:22px;line-height:1}.search-suggestions{display:flex;align-items:center;gap:7px;flex-wrap:wrap;font-size:11px;color:var(--muted);margin:10px 0 23px}.search-suggestions>span{margin-right:4px}.search-suggestions button{background:transparent;border:0;border-bottom:1px solid #c3cdbe;padding:6px 3px;color:#426252;font-size:11px}.search-suggestions button:hover{color:var(--orange)}.filters{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:0 0 15px}.grade-filters{display:flex;flex-wrap:wrap;gap:6px}.grade-filters button{border:1px solid transparent;background:transparent;border-radius:9px;min-height:38px;padding:9px 15px;font-size:12px;font-weight:680;color:var(--muted)}.grade-filters button[aria-pressed="true"]{background:var(--green);color:var(--white)}.grade-filters button:hover:not([aria-pressed="true"]){background:#e6eadf}.topic-label select{border:1px solid var(--line);background:transparent;border-radius:8px;padding:9px 27px 9px 12px;font-size:12px;max-width:220px;min-height:38px;color:var(--muted)}.results-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;min-height:30px;margin-bottom:10px}.results-meta p{font-size:12px;color:var(--muted);margin:0}.text-button{border:0;background:transparent;color:var(--green);font-size:12px;font-weight:650;padding:9px 0;text-decoration:none}.text-button:hover{text-decoration:underline;text-underline-offset:4px}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.expression-card{position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;overflow:hidden;transition:transform .15s,border-color .15s,box-shadow .15s}.expression-card:hover{border-color:#afc0ac;box-shadow:0 5px 15px #233d3610;transform:translateY(-3px)}.card-open{display:flex;flex-direction:column;align-items:flex-start;width:100%;text-align:left;padding:22px 23px 19px;background:transparent;border:0;flex:1;min-height:202px}.card-kicker{font-size:10px;font-weight:650;color:var(--muted);padding-right:31px}.card-title{font-size:21px;font-weight:750;letter-spacing:-.55px;line-height:1.22;margin:16px 0 10px}.card-summary{font-size:13px;color:var(--muted);line-height:1.6;margin:0 0 19px;flex:1}.card-bottom{display:flex;width:100%;align-items:center;justify-content:space-between;gap:8px;font-size:10px;color:var(--muted)}.category-tag{background:var(--green-soft);color:#45644d;padding:4px 7px;border-radius:5px;font-weight:650}.category-tag.kavram{background:#eeedf6;color:var(--purple)}.category-tag.işlem{background:var(--orange-soft);color:#905532}.category-tag.yönerge{background:#edf2f3;color:#4b6a79}.card-arrow{font-size:20px;color:var(--green)}.bookmark{position:absolute;right:14px;top:12px;z-index:1;background:transparent;border:0;width:38px;height:38px;border-radius:9px;display:grid;place-items:center;color:#6c7e6e}.bookmark:hover{background:var(--green-soft)}.bookmark[aria-pressed="true"]{color:var(--green);background:var(--lime)}.bookmark svg{width:17px;height:19px}.last-answer{margin:0 23px 17px;padding-top:11px;border-top:1px solid var(--line);font-size:11px;color:#68725a;display:flex;align-items:center;gap:7px}.last-answer.correct:before{content:"✓";color:#247354}.last-answer.wrong:before{content:"↻";color:var(--orange)}.empty-state{background:#edf0e5;text-align:center;border-radius:18px;padding:40px 25px;margin:10px 0}.empty-state h3{font-size:21px;margin:0 0 10px}.empty-state p{font-size:14px;color:var(--muted);line-height:1.6;margin:0 0 20px}.secondary-button{border:1px solid #c2cfbd;background:transparent;padding:12px 18px;border-radius:11px;font-size:13px;font-weight:650;min-height:44px}.secondary-button:hover{background:var(--green-soft)}.load-more-wrap{text-align:center;margin:25px 0}.learning-note{display:flex;align-items:center;gap:14px;background:#ecefe2;border-radius:15px;padding:18px 22px;margin:35px 0 46px}.learning-note>span{font-size:34px;color:var(--green)}.learning-note p{font-size:13px;color:var(--muted);line-height:1.6;margin:0;flex:1}.learning-note strong{color:var(--green)}.learning-note button{white-space:nowrap}.site-footer{max-width:1256px;margin:auto;border-top:1px solid var(--line);padding:25px 34px 38px;display:flex;align-items:center;gap:36px;color:var(--muted)}.site-footer>div{font-size:10px;display:flex;flex-direction:column;gap:5px}.footer-brand{font-weight:760;color:var(--green);font-size:14px}.site-footer p{flex:1;font-size:11px;line-height:1.7;margin:0}
dialog{border:0;color:var(--ink);background:var(--paper);padding:0;box-shadow:0 24px 120px #12272255;max-height:92dvh;width:calc(100% - 40px);max-width:1070px;border-radius:24px;overscroll-behavior:contain}dialog::backdrop{background:#132b2be0;backdrop-filter:none}body.modal-open{overflow:hidden}.dialog-top{display:flex;justify-content:space-between;align-items:center;padding:17px 25px;border-bottom:1px solid var(--line);gap:10px;background:var(--paper);position:sticky;top:0;z-index:5}.dialog-top .text-button{font-size:13px}.dialog-toolbar{display:flex;gap:5px;align-items:center}.icon-button,.close-button{display:grid;place-items:center;border:0;background:#e8ecdf;border-radius:10px;width:40px;height:40px;flex-shrink:0}.icon-button svg{width:17px;height:19px}.icon-button[aria-pressed="true"]{background:var(--lime);color:var(--green)}.close-button{font-size:26px;line-height:1}.dialog-toolbar .text-button{padding:10px;font-size:11px}.lesson-body{padding:30px 35px 35px}.lesson-heading{display:flex;gap:15px;justify-content:space-between;align-items:flex-start;margin-bottom:26px}.lesson-heading .eyebrow{font-size:10px;margin:0 0 10px;flex-wrap:wrap}.lesson-heading h2{font-size:35px;line-height:1.13;max-width:730px;letter-spacing:-1.3px}.lesson-heading .category-tag{font-size:10px;flex-shrink:0;margin-top:1px}.lesson-columns{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}.translation-box{background:var(--green);color:var(--white);border-radius:16px;padding:23px 25px;margin:0 0 22px}.translation-box .section-label{color:var(--lime)}.translation-box p{font-size:20px;font-weight:600;line-height:1.48;letter-spacing:-.35px;margin:11px 0 0}.section-label{font-size:10px;letter-spacing:1.35px;text-transform:uppercase;font-weight:750;color:var(--muted)}.first-step{display:flex;gap:13px;margin:0 0 21px}.step-number{background:var(--lime);border-radius:10px;min-width:34px;height:34px;display:grid;place-items:center;color:var(--green);font-weight:750;font-size:15px}.first-step p{font-size:15px;line-height:1.65;margin:7px 0 0;color:var(--ink)}.trap-box{border:1px solid #e6cdb8;background:#fff1e4;border-radius:13px;padding:17px 20px;color:#6e462f}.trap-box .section-label{color:#a0512e}.trap-box p{font-size:13px;line-height:1.7;margin:9px 0 0}.visual-box{border:1px solid #d0d9c6;border-radius:16px;background:#edf1e5;padding:18px;overflow:hidden}.visual-topline{display:flex;align-items:center;justify-content:space-between;gap:9px;margin:0 0 10px}.visual-badge{font-size:9px;background:var(--white);padding:4px 7px;border-radius:5px;color:#526958}.diagram{display:block;width:100%;height:auto;aspect-ratio:1.65;overflow:visible}.diagram text{font-family:system-ui,sans-serif;fill:var(--ink);font-size:13px}.diagram .small{font-size:11px;fill:var(--muted)}.diagram .label{font-size:14px;font-weight:700}.diagram .large{font-size:20px;font-weight:730}.diagram .tiny{font-size:10px;fill:var(--muted)}.diagram .line{fill:none;stroke:var(--green);stroke-width:2}.diagram .muted-line{fill:none;stroke:#a4b3a1;stroke-width:1.5}.diagram .axis{stroke:#849b87;stroke-width:1.5;fill:none}.diagram .main-fill{fill:var(--green)}.diagram .accent-fill{fill:var(--orange)}.diagram .lime-fill{fill:#c2dda0}.diagram .water{fill:#bcdce2}.diagram .dashed{stroke-dasharray:5 5}.diagram .orange-line{fill:none;stroke:var(--orange);stroke-width:2.5}.diagram .arrow{stroke:var(--green);stroke-width:2.5;fill:none;marker-end:url(#visual-arrow)}.diagram .orange-arrow{stroke:var(--orange);stroke-width:2.5;fill:none;marker-end:url(#visual-orange-arrow)}.visual-controls{display:flex;flex-wrap:wrap;gap:7px;justify-content:center;margin:9px 0 0}.visual-controls button{background:var(--white);border:1px solid #d0d9c6;border-radius:8px;padding:9px 12px;font-size:11px;min-height:37px;font-weight:600}.visual-controls button[aria-pressed="true"]{background:var(--green);color:var(--white);border-color:var(--green)}.visual-slider{display:flex;gap:10px;align-items:center;font-size:12px;margin-top:7px;flex-wrap:wrap}.visual-slider input{accent-color:var(--green);min-width:100px;flex:1;height:25px}.visual-slider output{font-variant-numeric:tabular-nums;min-width:36px;text-align:right}.visual-detail{font-size:12px;line-height:1.6;color:#42624b;min-height:38px;margin:11px 0 0;text-align:center}.visual-note{font-size:10px;color:#718170;text-align:center;line-height:1.5;margin:3px 0 0}.mini-quiz{padding:20px 0 0}.mini-quiz h3{font-size:16px;letter-spacing:-.3px;margin:0 0 10px;display:flex;align-items:center;gap:7px}.quiz-eyebrow{font-size:10px;letter-spacing:1px;color:var(--muted);font-weight:700}.quiz-question{font-size:14px;line-height:1.7;margin:9px 0 14px}.quiz-options{display:flex;flex-direction:column;gap:8px}.quiz-option{border:1px solid #d7dfd0;background:var(--white);border-radius:10px;padding:12px 14px;display:flex;gap:11px;align-items:center;text-align:left;font-size:13px;line-height:1.5;min-height:46px}.quiz-option:not(:disabled):hover{background:#e9efdf;border-color:#a9be9d}.option-letter{font-size:11px;border:1px solid #dbe2d3;min-width:25px;height:25px;display:grid;place-items:center;border-radius:7px;color:var(--muted);font-weight:700}.quiz-option.correct{background:#e3f0dc;border-color:#a1c594;color:#285b35}.quiz-option.wrong{background:#fff0e7;border-color:#da9c7e;color:#854928}.quiz-option.correct .option-letter{background:#c9e1bb;border-color:#aac998;color:#285b35}.quiz-option.wrong .option-letter{background:#f5d8c4;border-color:#dfb496;color:#854928}.quiz-option:disabled:not(.correct):not(.wrong){opacity:.65}.quiz-feedback{margin:13px 0 0;border-radius:10px;padding:14px 16px;font-size:13px;line-height:1.6;background:#e9efdf;color:#365747}.quiz-feedback.wrong{background:#fff0e4;color:#794b31}.quiz-feedback strong{display:block;margin-bottom:4px}.quiz-feedback button{margin-top:7px;display:block}.source-details{border-top:1px solid var(--line);padding-top:18px;margin-top:28px;font-size:11px;color:var(--muted)}.source-details summary{cursor:pointer;min-height:30px}.source-details p{line-height:1.8;margin:7px 0}.source-details a{color:var(--green);text-underline-offset:3px}.lesson-next{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:22px;margin-top:18px;border-top:1px solid var(--line)}.lesson-next p{font-size:12px;line-height:1.5;color:var(--muted);margin:0}.lesson-next button{font-size:12px;white-space:nowrap}
.challenge-dialog{max-width:650px}.challenge-main{padding:28px 32px 32px}.challenge-heading{display:flex;justify-content:space-between;gap:15px;align-items:center}.challenge-heading h2{font-size:27px}.challenge-heading .eyebrow{font-size:10px;margin:0 0 10px}.challenge-progress{margin:22px 0 25px}.challenge-progress-meta{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:8px}.progress-track{height:7px;background:#e1e7d8;border-radius:6px;overflow:hidden}.progress-fill{height:100%;background:var(--green);border-radius:6px;transition:width .2s}.challenge-main .quiz-question{font-size:17px;font-weight:550;margin-bottom:20px}.challenge-main .quiz-option{font-size:14px;padding:15px}.challenge-main .mini-quiz{padding-top:0}.challenge-next{margin-top:20px;display:flex;justify-content:flex-end}.primary-button{background:var(--green);color:var(--white);border:0;border-radius:11px;padding:13px 19px;font-size:13px;min-height:45px;font-weight:650}.primary-button:hover{background:#23524a}.primary-button:disabled{opacity:.5}.score-number{font-size:70px;font-weight:800;color:var(--green);letter-spacing:-4px;line-height:1;margin:23px 0 12px}.score-number span{font-size:25px;font-weight:550;letter-spacing:-1px;color:var(--muted)}.challenge-summary p{font-size:14px;line-height:1.7;color:var(--muted)}.review-list{display:flex;flex-direction:column;gap:8px;margin:22px 0}.review-link{background:var(--white);border:1px solid var(--line);padding:12px 14px;text-align:left;border-radius:9px;font-size:13px;display:flex;justify-content:space-between;gap:15px}.review-link span{color:var(--orange)}.summary-buttons{display:flex;gap:9px;flex-wrap:wrap}.challenge-scope{font-size:11px;color:var(--muted);line-height:1.6;margin:0 0 15px}.about-dialog{max-width:580px;padding:35px}.about-dialog .close-button{position:absolute;right:20px;top:20px}.about-dialog .eyebrow{margin-top:0;padding-right:35px}.about-dialog h2{margin:25px 0 20px;font-size:28px}.about-dialog p{font-size:14px;line-height:1.8;color:var(--muted)}.about-dialog a{font-size:13px;color:var(--green)}.about-dialog .about-version{font-size:11px;margin-top:25px;border-top:1px solid var(--line);padding-top:15px}.toast{position:fixed;z-index:50;bottom:23px;left:50%;transform:translate(-50%,15px);background:var(--green);color:var(--white);padding:12px 20px;border-radius:12px;font-size:12px;max-width:calc(100vw - 35px);box-shadow:0 8px 30px #122e3b20;opacity:0;pointer-events:none;transition:opacity .18s,transform .18s}.toast.show{opacity:1;transform:translate(-50%,0)}.noscript{background:var(--orange-soft);padding:25px;text-align:center}
.lab-scenes{display:flex;gap:5px;margin:17px 0 0}.lab-scenes button{border:0;background:transparent;color:#526859;border-radius:8px;padding:9px 12px;min-height:36px;font-size:12px;font-weight:650}.lab-scenes button[aria-pressed="true"]{background:var(--green);color:var(--white)}.lab-scenes button:hover:not([aria-pressed="true"]){background:#d5dfca}.lab-canvas-wrap{position:relative}.lab-canvas-wrap canvas{width:100%;height:242px;display:block;touch-action:none;cursor:grab}.lab-canvas-wrap canvas.dragging{cursor:grabbing}.lab-drag-hint{font-size:9px;color:#61745d;display:block;position:absolute;bottom:3px;left:50%;transform:translateX(-50%);pointer-events:none;white-space:nowrap}.lab-camera{display:flex;justify-content:center;gap:5px;margin:9px 0 13px}.lab-camera button{border:1px solid #c8d4bf;background:transparent;color:var(--green);border-radius:7px;font-size:11px;padding:5px 9px;min-height:30px}.lab-camera button:first-child,.lab-camera button:last-child{font-size:18px;width:33px}.lab-camera button:hover{background:#dce8cb}.lab-parameter{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:11px;color:#496249}.lab-parameter input{flex:1;min-width:100px;accent-color:var(--green);min-height:25px}.lab-parameter output{min-width:48px;text-align:right;font-variant-numeric:tabular-nums}.lab-result{font-size:13px;line-height:1.6;color:var(--green);font-weight:650;min-height:42px;margin:12px 0 5px}.lab-assumptions{font-size:9px;line-height:1.6;color:#61745d;margin:0 0 14px}.hero-lab{transform:none}.diagram .small,.diagram .tiny{font-size:13px}.diagram text{font-size:14px}
@media(max-width:650px){.lab-canvas-wrap canvas{height:230px}.lab-camera button{min-height:40px}.lab-camera button:first-child,.lab-camera button:last-child{width:42px}.lab-scenes button{min-height:42px;font-size:12px;padding:10px 13px}.lab-parameter{font-size:12px}.lab-parameter input{min-height:35px}.lab-assumptions{font-size:10px}.lab-result{font-size:14px}.hero-lab{transform:none}}
@media(min-width:1550px){.hero{padding-top:70px;padding-bottom:70px}}
@media(max-width:1270px){main{margin:0 34px}.hero{gap:40px}.hero-lab{margin-right:18px}}
@media(max-width:930px){.header-inner{padding:20px 25px}main{margin:0 25px}.hero{gap:28px;padding:42px 0}.hero-lab{padding:22px 24px 18px}.lab-phrase{font-size:25px}.lab-translation{font-size:17px}.lab-sticker{right:-14px;padding:10px}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-body{padding:25px}.lesson-heading h2{font-size:30px}.lesson-columns{gap:20px}.translation-box{padding:20px}.translation-box p{font-size:18px}.dialog-toolbar .print-button{display:none}.site-footer{padding:25px;gap:20px}}
@media(max-width:650px){.header-inner{padding:16px 19px;flex-wrap:wrap;gap:14px}.brand{font-size:18px;gap:9px}.brand-mark{width:37px;height:37px;line-height:38px;font-size:31px;padding-left:8px}.brand small{font-size:8px}.header-inner nav{width:100%;gap:4px}.nav-button{padding:10px 12px;font-size:12px;flex:1;white-space:nowrap}.nav-button span{font-size:10px;min-width:17px;height:17px;margin-left:2px}main{margin:0 20px}.hero{grid-template-columns:1fr;gap:30px;padding:31px 0 40px}.hero-copy .eyebrow{font-size:10px}h1{font-size:49px;letter-spacing:-2.2px;margin:14px 0 18px}.hero-copy>p{font-size:16px;line-height:1.65;margin-bottom:22px}.hero-copy>p br:last-child{display:none}.challenge-button{padding:13px 16px;min-height:60px;font-size:13px;gap:11px}.challenge-button small{font-size:10px}.hero-lab{margin:2px 12px 0 0;transform:rotate(.7deg);padding:23px 25px 17px}.lab-topline{font-size:9px}.lab-phrase{font-size:29px;margin-top:17px}.lab-road svg{max-height:105px}.lab-translation{font-size:17px;margin:6px 0 15px}.lab-sticker{top:-14px;right:-10px;font-size:10px}.lab-link{font-size:12px;padding-top:14px}.library{padding-top:25px}.library-heading{margin-bottom:18px}.library-heading h2{font-size:24px}.library-total{font-size:11px}.library-heading .eyebrow{font-size:9px;letter-spacing:1px}.search-box{padding:0 16px;min-height:61px;gap:14px}.search-box input{font-size:16px;min-height:60px}.search-box input::placeholder{font-size:13px}.filters{align-items:flex-start;flex-direction:column;gap:12px}.grade-filters{gap:4px}.grade-filters button{font-size:11px;padding:10px 12px;min-height:41px}.topic-label{width:100%}.topic-label select{width:100%;max-width:none;min-height:42px}.card-grid{grid-template-columns:1fr;gap:12px}.card-open{min-height:170px;padding:20px 21px 17px}.card-title{font-size:22px;margin:13px 0 8px}.card-summary{font-size:13px;margin-bottom:16px}.card-bottom{font-size:10px}.bookmark{width:42px;height:42px;top:8px}.learning-note{padding:18px;align-items:flex-start;gap:10px;flex-wrap:wrap;margin:30px 0}.learning-note>span{font-size:27px}.learning-note p{flex-basis:calc(100% - 45px);font-size:12px}.learning-note button{margin-left:37px;font-size:12px}.site-footer{padding:23px 20px 30px;gap:15px;align-items:flex-start;flex-wrap:wrap}.site-footer p{flex-basis:calc(100% - 190px)}.site-footer button{padding-top:0}dialog{width:calc(100% - 20px);max-height:95dvh;border-radius:19px}.dialog-top{padding:12px 15px}.dialog-toolbar .text-button{font-size:10px;padding:8px}.dialog-top .text-button{font-size:12px}.icon-button,.close-button{height:40px;width:40px}.lesson-body{padding:24px 19px}.lesson-heading{gap:12px;display:block;margin-bottom:20px}.lesson-heading h2{font-size:29px;letter-spacing:-1px}.lesson-heading>.category-tag{display:inline-block;margin-top:13px}.lesson-columns{grid-template-columns:1fr;gap:23px}.translation-box{padding:21px;margin-bottom:22px}.translation-box p{font-size:19px}.first-step p{font-size:14px}.trap-box p{font-size:13px}.visual-box{padding:17px}.diagram{max-height:245px}.visual-controls button{min-height:43px;padding:10px 12px;font-size:12px}.visual-detail{font-size:13px}.visual-slider input{min-height:35px}.mini-quiz{padding-top:23px}.quiz-question{font-size:15px}.quiz-option{font-size:14px;min-height:52px}.lesson-next{align-items:flex-start;gap:10px;flex-wrap:wrap}.challenge-main{padding:25px 20px}.challenge-heading h2{font-size:24px}.challenge-main .quiz-question{font-size:16px}.challenge-main .quiz-option{padding:13px}.about-dialog{padding:29px 24px}.about-dialog h2{font-size:26px}.about-dialog p{font-size:14px}.empty-state{padding:31px 21px}.search-suggestions{font-size:10px;gap:5px}.search-suggestions button{font-size:10px;min-height:34px}.search-suggestions>span{margin-right:0}}
@media(max-width:360px){main{margin:0 15px}.header-inner{padding:14px 15px}.nav-button{padding:10px 5px;font-size:11px}h1{font-size:45px}.grade-filters button{padding:10px 9px}.lab-phrase{font-size:26px}.lab-translation{font-size:16px}.dialog-toolbar .share-button{display:none}.lesson-body{padding:21px 16px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.hero-lab{transform:none}.expression-card:hover,.challenge-button:hover{transform:none}}
@media print{body{background:white;color:black}.site-header,main,.site-footer,.toast,.about-dialog,.challenge-dialog{display:none!important}dialog.lesson-dialog[open]{display:block!important;position:static;width:100%;max-width:none;max-height:none;overflow:visible;box-shadow:none;border-radius:0;background:white}.dialog-top,.dialog-toolbar,.visual-controls,.visual-slider,.mini-quiz,.lesson-next{display:none!important}.lesson-body{padding:0}.lesson-columns{grid-template-columns:1fr 1fr;gap:25px}.translation-box{background:#eef3e8;color:#182b2d;break-inside:avoid}.translation-box .section-label{color:#173f39}.trap-box,.visual-box{break-inside:avoid}.source-details{font-size:10px}body.modal-open{overflow:visible}}

.diagram .orange-fill{fill:#eab99d}
.graph-lesson .lesson-columns{grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr)}
.graph-lesson .lesson-columns>div{min-width:0}
.lesson-columns>div{min-width:0}
.concept-lab.experiment-running .concept-ray{transition:none}
.concept-svg .concept-ray{transition:none}
@media(min-width:980px){.concept-lesson .lesson-columns>div:first-child{position:sticky;top:90px}}
.concept-heading{font-size:19px;line-height:1.3;letter-spacing:-.45px;margin:17px 0 12px}.concept-drawing{background:#fafbf5;border:1px solid #d4dfca;border-radius:12px;padding:6px 3px}.concept-svg{display:block;width:100%;height:auto;overflow:visible}.concept-svg text{font-family:system-ui,sans-serif;font-size:15px;fill:var(--ink)}.concept-force{stroke:var(--green);stroke-width:3;fill:none}.concept-force.orange{stroke:var(--orange)}.concept-object{transition:transform .32s ease}.concept-ray{transform-origin:180px 130px;transition:transform .4s ease;transform-box:view-box}.concept-actions{display:flex;gap:7px;margin:12px 0}.concept-actions button{border:1px solid #c6d3bb;border-radius:9px;background:#fffdf7;min-height:44px;font-size:12px;font-weight:650;padding:10px 12px}.concept-actions button:first-child{flex:1;background:var(--green);color:var(--white);border-color:var(--green)}.concept-actions button:last-child{font-size:11px}.concept-slider{margin-top:14px;line-height:1.5}.concept-slider span{flex-basis:100%;font-weight:650}.concept-demo-status{font-size:12px;line-height:1.6;color:#516846;margin:9px 0 0;min-height:20px}.concept-stats .graph-result-value{font-size:18px;line-height:1.45;letter-spacing:-.15px}.concept-volume{display:flex;justify-content:space-between;gap:10px;font-size:12px;line-height:1.6;margin:0 0 12px;color:#526646}.concept-volume strong{color:var(--green);font-size:17px;font-variant-numeric:tabular-nums}.concept-stats{margin-top:8px}.concept-lab .graph-guide-panel{position:static}.concept-lab .visual-note{margin-top:14px;text-align:left;font-size:11px}.concept-svg .guide-highlight{outline:none;filter:drop-shadow(0 0 4px #b573d4)}
@media(max-width:650px){.concept-svg text{font-size:18px}.concept-heading{font-size:18px}.concept-demo-status,.concept-lab .graph-explanation{font-size:13px}.concept-actions button{padding:9px 8px;font-size:12px}.concept-actions button:last-child{font-size:11px}}
@media print{.concept-actions,.concept-slider,.concept-demo-status{display:none!important}}
.graph-axis-note{font-size:11px;color:#655673;line-height:1.6;margin:7px 2px 3px;text-align:center}
@media(max-width:650px){.graph-lesson .lesson-columns{grid-template-columns:minmax(0,1fr)}.graph-lab #lesson-motion{margin:12px 0;padding:12px}.graph-lab .motion-title{margin-bottom:5px}.graph-lab .motion-title h3{font-size:14px}.graph-lab .motion-title span,.graph-lab .motion-note{display:none}.graph-lab .motion-scene svg{max-height:110px}.graph-lab .motion-direction{font-size:12px;min-height:0;margin:3px 0 6px}.graph-lab .motion-values{font-size:11px}.graph-lab .motion-scrub{margin:6px 0;font-size:11px}.graph-lab .motion-play{min-height:39px;font-size:12px}}
.graph-lab{position:relative}.graph-guide-start{width:100%;min-height:44px;padding:10px 12px;border:1px solid #bbaa8c;background:#f8e7c6;border-radius:10px;color:#74502a;font-size:12px;font-weight:700;margin:8px 0 10px}.graph-guide-panel{background:#735089;color:white;border-radius:10px;padding:14px;margin:10px 0 14px;position:sticky;bottom:10px;z-index:2;box-shadow:0 8px 24px #5330651a}.graph-guide-text{font-size:13px;line-height:1.7;margin:0 0 10px}.graph-guide-controls{display:flex;align-items:center;gap:8px;font-size:11px}.graph-guide-controls button{background:#ffffff1c;border:1px solid #ffffff35;color:white;min-height:36px;min-width:36px;padding:7px 10px;border-radius:7px;font-size:11px}.graph-guide-controls button:disabled{opacity:.4}.graph-guide-count{flex:1}.graph-guide-arrow{position:absolute;z-index:3;pointer-events:none;width:31px;height:32px;font-size:28px;line-height:30px;color:#8754a6;text-shadow:0 0 4px white,0 0 4px white;transition:left .6s,top .6s;filter:drop-shadow(0 2px 3px #ffffffb0)}.guide-highlight{outline:2px solid #a77bbd;outline-offset:3px}.graph-svg .guide-highlight{outline:none;filter:drop-shadow(0 0 4px #b573d4)}
@media(prefers-reduced-motion:reduce){.graph-guide-arrow{transition:none}}
@media print{.graph-guide-start,.graph-guide-panel,.graph-guide-arrow{display:none!important}}

/* Tıklanabilir grafik atölyesi ve aynı harekete ait araç modeli. */
.graph-lab{font-size:13px}.graph-tabs{display:flex;gap:5px;margin:9px 0}.graph-tabs button{flex:1;border:1px solid #ccd7c3;background:#fffdf7;border-radius:9px;min-height:43px;padding:8px 6px;font-size:12px;font-weight:650}.graph-tabs button[aria-pressed="true"]{background:var(--green);color:var(--white);border-color:var(--green)}.graph-scenario{display:flex;gap:10px;align-items:center;justify-content:space-between;font-size:11px;margin:13px 0}.graph-scenario select{max-width:62%;font:inherit;font-size:12px;border:1px solid #c8d4bd;background:#fffdf7;padding:9px 7px;border-radius:8px;color:var(--ink);min-height:42px}.graph-model{font-size:12px;line-height:1.55;color:#526653;margin:11px 0 3px;min-height:38px}.graph-drawing{background:#fafbf5;border:1px solid #d4dfca;border-radius:12px;padding:6px 3px}.graph-svg{display:block;width:100%;height:auto;overflow:visible;cursor:crosshair;touch-action:manipulation}.graph-svg text{fill:var(--ink);font-family:system-ui,sans-serif;font-size:14px}.graph-grid{stroke:#dce4d4;stroke-width:1;stroke-dasharray:3 5;fill:none}.graph-axis{stroke:#768975;stroke-width:1.5;fill:none}.graph-line{stroke:var(--green);stroke-width:3;fill:none;stroke-linejoin:round}.graph-area.positive{fill:#c7e39f;fill-opacity:.85}.graph-area.negative{fill:#eab493;fill-opacity:.85}.graph-triangle{fill:#edc39f;fill-opacity:.45;stroke:#c26c37;stroke-width:1.5;stroke-dasharray:5 4}.graph-secant{stroke:#b35c31;stroke-width:2;stroke-dasharray:5 4;fill:none}.graph-svg .graph-delta{fill:#96512e;font-weight:700}.graph-boundary{stroke:#889b7d;stroke-width:1.5;stroke-dasharray:3 4;fill:none}.graph-point{fill:#eff5e7;stroke:var(--green);stroke-width:2}.graph-point.selected{fill:var(--green)}.graph-point.pending{fill:#edc39f;stroke:#aa572d}.graph-playhead path{stroke:#a658ca;stroke-width:1.5;stroke-dasharray:3 3;fill:none}.graph-playhead circle{fill:#a658ca;stroke:#fff;stroke-width:2}.graph-point-buttons{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px;margin:10px 0 0}.graph-point-buttons button{min-height:44px;padding:7px 2px;border:1px solid #bdcdb1;border-radius:9px;background:#fffdf7;font-size:12px;font-weight:650}.graph-point-buttons button[aria-pressed="true"]{background:var(--lime);border-color:#95ae79;color:var(--green)}.graph-hint{font-size:11px;line-height:1.6;color:#5c7353;min-height:34px;margin:8px 0}.graph-selection{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:11px;margin:0 0 12px}.graph-selection b{display:block;font-size:14px;margin-top:3px}.graph-selection button{background:none;border:0;font-size:11px;color:var(--green);padding:8px 3px;min-height:40px}.graph-result{background:#fffdf7;border:1px solid #d2dcc9;border-radius:12px;padding:16px}.graph-result-title{font-size:12px;font-weight:700;margin:0 0 8px}.graph-result-value{font-size:27px;font-weight:800;color:var(--green);margin:0 0 10px;letter-spacing:-.5px}.graph-formula{font-size:13px;line-height:1.7;font-variant-numeric:tabular-nums;background:#eff3e7;border-radius:8px;padding:9px 10px;margin:0 0 12px;overflow-wrap:anywhere}.graph-explanation,.graph-insight{font-size:12px;line-height:1.65;margin:10px 0 0}.graph-insight{border-top:1px solid #e1e7d9;padding-top:10px;color:#596d50}.graph-signs{display:flex;gap:6px;flex-wrap:wrap;font-size:11px;font-weight:650}.graph-signs span{padding:6px 8px;border-radius:6px}.graph-signs .positive{background:#dceac8;color:#3b582a}.graph-signs .negative{background:#f2dccb;color:#8a4a2b}#lesson-motion{margin-top:22px;padding:20px 18px;background:#f0eaf8;border:1px solid #d7cae1;border-radius:16px}.motion-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 0 10px}.motion-title h3{font-size:16px;margin:0;letter-spacing:-.3px}.motion-title span{font-size:10px;color:#7a608b}.motion-scene svg{display:block;width:100%;height:auto}.motion-scene text{font-family:system-ui,sans-serif;font-size:15px;fill:#4e3d59}.motion-direction{font-size:14px;font-weight:700;line-height:1.5;color:#694782;min-height:42px;margin:6px 0 10px}.motion-values{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:#644973}.motion-values strong{font-variant-numeric:tabular-nums}.motion-scrub{display:flex;align-items:center;gap:8px;font-size:12px;margin:14px 0}.motion-scrub input{accent-color:#8654a5;flex:1;min-width:70px;min-height:35px}.motion-scrub output{min-width:39px;text-align:right;font-variant-numeric:tabular-nums}.motion-play{min-height:44px;width:100%;background:#735089;color:#fff;border:0;border-radius:10px;font-size:13px;font-weight:650}.motion-note{font-size:11px;line-height:1.6;color:#776682;margin:12px 0 0}
@media(max-width:650px){.graph-svg text{font-size:18px}.graph-model,.graph-explanation,.graph-insight{font-size:13px}.graph-tabs button{font-size:11px}.graph-scenario{font-size:12px;flex-wrap:wrap}.graph-scenario select{max-width:100%;font-size:13px;flex:1}.graph-formula{font-size:13px;padding:9px 8px}.graph-result{padding:14px}.graph-hint{font-size:12px}.motion-scene text{font-size:19px}#lesson-motion{padding:18px 14px}.motion-values{font-size:13px}}
@media print{.graph-tabs,.graph-scenario,.graph-point-buttons,.graph-hint,.graph-selection button,.motion-scrub,.motion-play{display:none!important}#lesson-motion{break-inside:avoid}}

.lab-disclosure>summary{display:none}.lab-drag-hint{position:static;transform:none;text-align:center;font-size:10px}.lab-canvas-wrap canvas{height:225px}@media(max-width:650px){.lab-disclosure>summary{display:flex;justify-content:space-between;align-items:center;gap:12px;border:1px solid #c8d4bf;background:#e8eee2;color:#173f39;border-radius:12px;padding:15px 18px;font-size:13px;font-weight:700;cursor:pointer;min-height:48px;list-style:none}.lab-disclosure>summary::-webkit-details-marker{display:none}.lab-disclosure[open]>summary{margin-bottom:24px}.lab-canvas-wrap canvas{height:230px}}

@media(max-width:650px){.diagram text,.diagram .small,.diagram .tiny{font-size:17px}.diagram .label{font-size:18px}.diagram .large{font-size:23px}}

/* Maarif programına dayanan öğrenci anlatımı ve kapsam. */
.hero-copy>p.maarif-badge{display:inline-block;font-size:11px;font-weight:650;line-height:1.6;margin:12px 0 0;padding:7px 11px;background:var(--green-soft);border:1px solid #cbd8c4;border-radius:8px;color:var(--green)}
.maarif-section{padding:28px 0 35px;border-top:1px solid var(--line)}.maarif-intro{max-width:780px}.maarif-intro .eyebrow{margin:0 0 10px}.maarif-intro>p:last-child{font-size:14px;line-height:1.75;color:var(--muted);margin:14px 0 22px}.maarif-steps{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:0;margin:0 0 18px}.maarif-steps li{padding:20px;border:1px solid var(--line);background:var(--white);border-radius:16px}.maarif-steps li>span{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;background:var(--lime);color:var(--green);border-radius:9px;font-size:12px;font-weight:750}.maarif-steps h3{font-size:18px;letter-spacing:-.4px;margin:12px 0 8px}.maarif-steps p{font-size:13px;line-height:1.7;color:var(--muted);margin:0}.maarif-sources{font-size:12px;line-height:1.8;color:var(--muted);background:#edf0e5;border-radius:12px;padding:0 16px}.maarif-sources summary{cursor:pointer;min-height:48px;padding:13px 0;font-weight:650;color:var(--green)}.maarif-sources>p{margin:0 0 12px}.maarif-sources ul{padding-left:20px;margin:0 0 12px}.maarif-sources>a{display:inline-block;min-height:44px;padding:9px 0;color:var(--green)}
@media(max-width:650px){.maarif-section{padding:25px 0}.maarif-steps{grid-template-columns:1fr;gap:10px}.maarif-steps li{padding:17px}.maarif-intro h2{font-size:26px}.hero-copy>p.maarif-badge{font-size:10px}.maarif-sources{overflow-wrap:anywhere}}

/* Bağlam alıştırmaları: ortak veri, bağımsız sorular, isteğe bağlı ipuçları. */
.context-library{border-top:1px solid var(--line);padding:30px 0 36px;scroll-margin-top:20px}.context-library-intro{max-width:780px;font-size:14px;line-height:1.7;color:var(--muted);margin:0 0 20px}.context-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.context-card{background:#f0eaf6;border:1px solid #d9cde3;border-radius:18px;padding:22px}.context-card-icon{display:grid;place-items:center;font-size:26px;width:42px;height:42px;background:#e0d3ec;color:#694581;border-radius:12px}.context-card .eyebrow{font-size:10px;letter-spacing:.7px;margin:16px 0 9px}.context-card h3{font-size:22px;line-height:1.25;margin:0 0 10px;letter-spacing:-.5px}.context-card>p:not(.eyebrow){font-size:13px;line-height:1.7;color:var(--muted);margin:0 0 12px}.context-card>a{display:inline-flex;align-items:center;min-height:44px;color:#694581;font-size:13px;font-weight:700;text-decoration:none}.context-card>a:hover{text-decoration:underline}.context-reading{font-size:12px;color:var(--muted);line-height:1.7;margin-top:16px;border-top:1px solid var(--line)}.context-reading summary{min-height:48px;padding:14px 0;font-weight:650;color:var(--green);cursor:pointer}.context-reading ol{padding-left:20px;margin:0 0 10px}.context-reading li{margin:8px 0}.context-heading{margin-bottom:25px}.context-heading .eyebrow{margin:0 0 10px}.context-heading>p:last-child{font-size:14px;color:var(--muted);line-height:1.7;margin:14px 0 0}.context-columns{display:grid;grid-template-columns:1fr 1.1fr;gap:25px;align-items:start}.context-columns>section{min-width:0}.context-story{background:#edf1e5;border:1px solid #d2dcc6;border-radius:18px;padding:22px}.context-story>p{font-size:14px;line-height:1.8;margin:14px 0 18px}.context-conditions{background:#fffdf6;border-radius:11px;padding:13px;font-size:12px!important;line-height:1.8}.context-lesson-link{display:inline-flex;min-height:44px;align-items:center}.context-table-wrap{background:var(--white);border:1px solid #d5dfcc;border-radius:12px;padding:12px;transition:background .2s,box-shadow .2s}.context-table{border-collapse:collapse;width:100%;font-size:13px;line-height:1.55;text-align:center;font-variant-numeric:tabular-nums;table-layout:fixed}.context-table caption{text-align:left;font-size:12px;font-weight:700;padding-bottom:10px;color:var(--green)}.context-table td,.context-table th{padding:10px 4px;border-bottom:1px solid #dce4d3;overflow-wrap:anywhere}.context-table thead th{background:#e7eedd;font-weight:650}.context-table tbody th{font-weight:500}.context-table tbody tr:last-child>*{border-bottom:0}.context-figure{margin:0;background:var(--white);border-radius:12px;border:1px solid #d5dfcc;padding:8px;transition:box-shadow .2s}.context-figure svg{display:block;width:100%;height:auto}.context-figure text{font:16px system-ui,sans-serif;fill:var(--ink)}.context-figure figcaption{font-size:11px;padding:0 6px 8px;color:var(--muted)}.context-evidence-active{box-shadow:0 0 0 3px #bc95d5;background:#f6effb}.context-learning-note{font-size:12px;line-height:1.7;color:#765486;margin:0 0 16px;padding:12px 14px;border-radius:10px;background:#f0eaf6}.context-question{min-width:0;border:0;border-bottom:1px solid var(--line);margin:0 0 20px;padding:0 0 18px}.context-question legend{font-size:15px;font-weight:650;line-height:1.7;padding:0;margin:0 0 12px;width:100%}.context-question legend>span{display:block;font-size:10px;color:var(--muted);letter-spacing:1px;margin-bottom:7px}.context-options{display:grid;gap:9px}.context-option{display:flex;align-items:center;gap:10px;border:1px solid #d6ddce;background:var(--white);border-radius:10px;padding:12px;min-height:48px;font-size:13px;line-height:1.6;cursor:pointer}.context-option input{accent-color:var(--green);flex-shrink:0;width:17px;height:17px;margin:0}.context-option>span{font-size:11px;color:var(--muted);font-weight:700}.context-option:has(input:checked){background:#edf2e4;border-color:#6e895a}.context-option.is-correct{background:#e1efd8;border-color:#61924c}.context-option.is-wrong{background:#fae8e4;border-color:#c17d73}.context-hint{margin-top:7px}.context-hint button{min-height:44px;text-align:left;color:#78528c}.context-hint button>span{font-size:10px;margin-left:9px}.context-hint button:disabled{color:var(--muted)}.context-hint-text:not(:empty){background:#f0eaf6;border-radius:11px;padding:12px 14px}.context-hint-text p{font-size:12px;line-height:1.8;margin:0 0 8px}.context-hint-text p:last-child{margin-bottom:0}.context-feedback{background:#e8f1df;padding:15px;border-radius:12px;margin-top:14px;font-size:13px;line-height:1.8}.context-feedback.wrong{background:#fff0e4}.context-feedback>strong{display:block}.context-feedback p{margin:8px 0 0}.context-feedback .context-transfer{border-top:1px solid #cbd8be;padding-top:10px;font-size:12px}.context-check-wrap .primary-button{width:100%}.context-check-wrap .primary-button:disabled{opacity:.55}.context-check-status{font-size:12px;line-height:1.7;color:var(--muted)}.context-check-wrap .secondary-button{width:100%;font-size:12px}.context-entry{display:flex;align-items:center;justify-content:space-between;gap:18px;background:#f0eaf6;border:1px solid #d9cde3;border-radius:15px;padding:18px 20px;margin-top:25px}.context-entry p{font-size:13px;line-height:1.7;margin:7px 0 0}.context-entry a{white-space:nowrap;text-decoration:none}
@media(min-width:980px){.context-story{position:sticky;top:90px}}
@media(max-width:650px){.context-card-grid,.context-columns{grid-template-columns:1fr}.context-library .library-heading{align-items:flex-start;flex-direction:column;gap:10px}.context-card{padding:19px}.context-story{padding:17px}.context-heading h2{font-size:28px}.context-question legend{font-size:15px}.context-table{font-size:12px}.context-table-wrap{padding:8px}.context-figure text{font-size:18px}.context-entry{align-items:flex-start;flex-direction:column}.context-option{font-size:13px;padding:11px}.context-conditions{font-size:12px!important}}
@media print{.context-hint,.context-check-wrap,.context-entry{display:none!important}.context-story{position:static}.context-columns{display:block}.context-option,.context-feedback{break-inside:avoid}}

.context-solution{margin-top:8px;border-top:1px solid #dcc8b4}.context-solution summary{min-height:44px;padding:10px 0;cursor:pointer;font-weight:650}.context-solution p{margin:0 0 10px}
/* Kavram yanılgıları bürosu */
.detective-library{border:1px solid #dcc999;background:#faf0d6;border-radius:25px;padding:30px;margin:15px 0 38px;scroll-margin-top:20px}.detective-intro{display:flex;align-items:center;justify-content:space-between;gap:20px}.detective-intro h2{font-size:38px;letter-spacing:-1px;margin:6px 0 12px}.detective-intro p:not(.eyebrow){font-size:15px;line-height:1.7;color:var(--muted);margin:0}.detective-bureau{border:2px dashed #b2934e;padding:16px 20px;transform:rotate(5deg);border-radius:15px;display:flex;align-items:center;gap:15px;color:#75591f;font-size:12px;line-height:1.5}.detective-bureau>span{font-size:42px}.detective-home-meta{display:flex;justify-content:space-between;gap:15px;align-items:center;flex-wrap:wrap;margin:24px 0 18px}.detective-home-meta>p,.detective-home-note{font-size:12px;line-height:1.7;color:#78623c}.detective-home-note{margin:18px 0 0}.detective-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.detective-card{display:flex;flex-direction:column;min-width:0;padding:20px;background:#fffdf7;border:1px solid #e0d2b1;border-radius:15px;text-decoration:none;color:var(--ink);transition:transform .15s,box-shadow .15s}.detective-card:hover{transform:translateY(-3px);box-shadow:0 7px 15px #a17a3520}.detective-file-meta{display:flex;align-items:flex-start;justify-content:space-between;gap:9px;font-size:9px;line-height:1.8;color:#78623c}.detective-stamp{border:1px solid #b8a17a;padding:1px 5px;border-radius:4px;font-size:8px;white-space:nowrap;letter-spacing:.3px}.detective-stamp.solved{color:#285635;border-color:#60946a;background:#eaf3df}.detective-card h3{font-size:21px;line-height:1.3;margin:16px 0 10px;letter-spacing:-.4px}.detective-card>p{font-size:13px;line-height:1.7;margin:0 0 17px;color:var(--muted)}.detective-card-link{margin-top:auto;font-size:12px;font-weight:700;color:#86561f;min-height:25px}.detective-dialog{max-width:1080px;background:#fffdf7}.detective-body{padding:28px 32px 32px}.detective-heading{display:flex;gap:16px;align-items:center;margin-bottom:25px}.detective-mascot{width:87px;flex:0 0 87px}.detective-heading .eyebrow{font-size:10px;margin:0 0 8px;color:#8b6a32;letter-spacing:1px}.detective-heading h2{font-size:31px;line-height:1.2;letter-spacing:-.8px;margin:0}.detective-heading p:last-child{font-size:13px;color:var(--muted);margin:10px 0 0}.detective-columns{display:grid;grid-template-columns:1fr 1.05fr;gap:25px;align-items:start}.detective-columns>section{min-width:0}.detective-claim{background:#faf0d6;border:1px solid #e0d2b1;border-radius:18px;padding:22px}.detective-person{font-size:12px;font-weight:700;color:#8b6a32}.detective-claim blockquote{font-size:22px;font-weight:650;line-height:1.45;margin:16px 0 20px;letter-spacing:-.3px}.detective-conditions{background:#fffdf7;border-radius:11px;padding:13px;font-size:12px;line-height:1.8}.detective-verdict,.detective-options{border:0;padding:0;margin:20px 0 0;min-width:0}.detective-verdict legend,.detective-options legend{font-weight:700;font-size:14px;line-height:1.6;padding:0;margin:0 0 12px;width:100%}.detective-verdict>div{display:flex;gap:9px}.detective-verdict button{border:1px solid #c9ba97;background:#fffdf7;min-height:48px;flex:1;border-radius:10px;font-size:13px;padding:10px}.detective-verdict button[aria-pressed=true]{background:#173f39;color:#fffdf7;border-color:#173f39}.detective-verdict button:disabled{opacity:1;cursor:default}.detective-note{font-size:11px;line-height:1.8;color:#78623c}.detective-evidence{background:#fffdf7;border:1px dashed #c9ba97;border-radius:13px;padding:15px;margin-top:20px;font-size:13px;color:var(--muted);line-height:1.7}.detective-evidence:not(.revealed){text-align:center;padding:23px}.detective-sealed{font-size:27px;margin-bottom:6px}.detective-evidence>p{margin:5px 0 0}.detective-evidence-heading{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:4px}.detective-evidence-heading .section-label{font-size:9px;color:#78623c}.detective-evidence-heading button{font-size:12px;min-height:44px}.detective-figure{margin:3px 0 12px}.detective-figure svg{display:block;width:100%;height:auto;max-height:270px}.detective-figure text{font:16px system-ui,sans-serif;fill:#173f39}.detective-figure figcaption{font-size:10px;line-height:1.7;color:var(--muted)}.detective-metrics{display:grid;gap:6px;margin:0}.detective-metrics>div{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 10px;background:#f0f3e8;border-radius:7px;font-size:12px;line-height:1.5}.detective-metrics dt{color:var(--muted)}.detective-metrics dd{margin:0;text-align:right;font-weight:700;color:var(--green)}.detective-animation-status{font-size:11px!important;line-height:1.7}.detective-options{margin:0}.detective-option{position:relative;display:flex;align-items:center;gap:10px;border:1px solid #d8decd;background:#fffdf7;border-radius:10px;padding:12px;min-height:55px;margin-bottom:9px;font-size:13px;line-height:1.65;cursor:pointer}.detective-option input{flex:0 0 17px;width:17px;height:17px;accent-color:var(--green);margin:0}.detective-letter{font-size:11px;font-weight:700;color:var(--muted)}.detective-option:has(input:checked){background:#edf2e4;border-color:#6e895a}.detective-option.is-correct{background:#e8f1df;border-color:#61924c;flex-wrap:wrap}.detective-option.is-correct>span:last-of-type{flex:1;min-width:120px}.detective-answer-label{font-size:10px;display:block;flex-basis:100%;margin-left:47px;color:#315d26}.detective-option.is-wrong{background:#fff0e4;border-color:#c69870}.detective-check{width:100%;margin-top:12px}.detective-check-status{font-size:11px;line-height:1.7;color:var(--muted)}.detective-wait{border:2px dashed #e0d2b1;border-radius:16px;background:#fff9ec;min-height:185px;padding:24px;text-align:center;font-size:14px;line-height:1.8;color:#78623c}.detective-wait>span{font-size:38px}.detective-feedback{position:relative;overflow:hidden;background:#edf2e4;border-radius:14px;padding:19px;font-size:13px;line-height:1.8;outline-offset:3px}.detective-feedback p{margin:12px 0 0}.detective-score{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;line-height:1.5}.detective-score>span{font-size:11px;white-space:nowrap;border-radius:30px;background:#173f39;color:#fffdf7;padding:4px 9px}.detective-punchline{font-size:14px;color:#86561f;font-weight:650}.detective-checklist{padding-left:0;list-style:none;margin:15px 0}.detective-checklist li{padding:4px 0}.detective-transfer{border-top:1px solid #ccd7bf;padding-top:12px}.detective-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:17px}.detective-actions>a{text-decoration:none;display:inline-flex;align-items:center}.detective-actions>*{flex:1;text-align:center;justify-content:center;white-space:nowrap;font-size:12px}.detective-lesson{display:inline-flex;align-items:center;min-height:44px;margin-top:12px;font-size:12px}.detective-confetti{position:absolute;inset:0;pointer-events:none;overflow:hidden}.detective-confetti i{position:absolute;left:calc(8% + var(--i)*10%);top:0;width:7px;height:13px;background:#e49b36;animation:detective-celebrate 1.2s ease-out both;animation-delay:calc(var(--i)*.04s)}.detective-confetti i:nth-child(2n){background:#739753}.detective-confetti i:nth-child(3n){background:#9e82b0}@keyframes detective-celebrate{0%{transform:translateY(-20px) rotate(0deg);opacity:1}100%{transform:translateY(220px) rotate(210deg);opacity:0}}.detective-entry{display:flex;align-items:center;justify-content:space-between;gap:18px;background:#faf0d6;border:1px solid #e0d2b1;border-radius:15px;padding:18px 20px;margin-top:20px}.detective-entry p{font-size:13px;line-height:1.7;margin:7px 0 0}.detective-entry a{white-space:nowrap;text-decoration:none}
@media(max-width:950px){.detective-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.detective-library{padding:20px 16px}.detective-intro{align-items:flex-start}.detective-intro h2{font-size:29px}.detective-intro p:not(.eyebrow){font-size:13px}.detective-bureau{display:none}.detective-card-grid{grid-template-columns:1fr}.detective-file-meta{font-size:9px}.detective-home-meta{margin-top:18px;gap:8px}.detective-home-meta .grade-filters{flex-wrap:wrap}.detective-home-meta .grade-filters button{padding:10px;font-size:11px}.detective-home-meta>p{margin:0}.detective-body{padding:22px 16px}.detective-heading{gap:10px;align-items:flex-start}.detective-mascot{width:55px;flex-basis:55px}.detective-heading h2{font-size:25px;overflow-wrap:anywhere}.detective-heading .eyebrow{font-size:8px;line-height:1.6}.detective-heading p:last-child{font-size:12px;line-height:1.6}.detective-columns{grid-template-columns:1fr;gap:22px}.detective-claim{padding:16px}.detective-claim blockquote{font-size:20px}.detective-evidence{padding:10px}.detective-figure text{font-size:21px}.detective-verdict button{font-size:12px}.detective-options legend{font-size:14px}.detective-option{font-size:13px;padding:11px}.detective-feedback{padding:15px}.detective-score{flex-wrap:wrap;gap:8px}.detective-entry{flex-direction:column;align-items:flex-start}.detective-metrics>div{font-size:11px;gap:7px}.detective-actions>*{flex-basis:100%}}
@media(prefers-reduced-motion:reduce){.detective-confetti{display:none}.detective-card{transition:none}.detective-card:hover{transform:none}}

.detective-mobile-link{display:none}.detective-reset-actions button{min-height:44px;font-size:11px;color:#78623c}.detective-feedback>[data-detective-evidence]{min-height:44px;font-size:12px;padding-left:0}@media(max-width:650px){.detective-mobile-link{display:inline-block;min-height:44px;font-size:12px}}

.detective-hero-link{display:inline-flex;align-items:center;min-height:44px;margin-top:11px;font-size:13px;font-weight:650;color:#86561f;text-decoration:none}.detective-hero-link:hover{text-decoration:underline}
.pressure-evidence{border:1px solid #cbdcd4;background:linear-gradient(135deg,#f7fbf4,#fffdf5);padding:20px;margin:0 0 25px;box-shadow:0 12px 30px #173f390a}.pressure-stage{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(235px,1fr);gap:24px;margin-top:12px;align-items:start}.pressure-view{min-width:0;border:1px solid #d3e2dc;border-radius:18px;background:radial-gradient(ellipse at 50% 35%,#fffef4,#edf5ef);overflow:hidden}.pressure-scene-label{display:flex;justify-content:space-between;gap:10px;padding:15px 17px 0;font-size:9px;letter-spacing:1px;font-weight:750;color:#4c7066}.pressure-scene-label>span:last-child{letter-spacing:0;font-weight:500}.pressure-canvas{cursor:grab;touch-action:pan-y;outline-offset:-4px}.pressure-canvas:active{cursor:grabbing}.pressure-canvas svg{display:block;width:100%;height:auto}.pressure-probe-handle{cursor:ns-resize;touch-action:none}.pressure-camera-hint{font-size:11px;line-height:1.7;text-align:center;margin:0;padding:0 18px;color:#587269}.pressure-camera{display:flex;justify-content:center;gap:6px;margin:10px 12px 15px}.pressure-camera button{min-height:44px;min-width:44px;border:1px solid #c9d9d1;background:#fffef7;border-radius:10px;padding:8px 12px;font-size:12px;font-weight:650;color:#264f43}.pressure-gauges{display:grid;grid-template-columns:1fr 28px 1fr;align-items:center;gap:5px;border-top:1px solid #d3e2dc;background:#fffdf7;padding:15px 12px}.pressure-gauges>div{display:flex;flex-direction:column;gap:3px;align-items:center;text-align:center;min-width:0}.pressure-gauges strong{font-size:25px;line-height:1.2;color:#173f39;letter-spacing:-.5px;font-variant-numeric:tabular-nums}.pressure-gauges span,.pressure-gauges small{font-size:11px;color:#647968}.pressure-gauges .pressure-equals{font-size:25px;font-weight:600;text-align:center;color:#ad7836}.pressure-tour-label{font-size:10px;font-weight:750;letter-spacing:1px;color:#95662b;margin:4px 0 17px}.pressure-shapes{border:0;padding:0;margin:0 0 20px;min-width:0}.pressure-shapes legend,.pressure-depth-label,.pressure-try-title{font-size:13px;font-weight:650;line-height:1.65;color:#264f43;margin:0 0 10px;padding:0}.pressure-shapes>div{display:flex;gap:6px;flex-wrap:wrap}.pressure-shapes button{flex:1;min-height:46px;border:1px solid #c9d9d1;background:#fffdf7;border-radius:10px;padding:10px;font-size:12px;color:#264f43;font-weight:600}.pressure-shapes button[aria-pressed=true]{background:#173f39;border-color:#173f39;color:#fffdf7;box-shadow:0 3px 8px #173f3926}.pressure-depth-label{display:flex;justify-content:space-between;gap:8px;align-items:center}.pressure-depth-label output{font-size:13px;background:#e8efdf;border-radius:7px;padding:5px 7px;white-space:nowrap}#pressure-depth{width:100%;min-height:44px;accent-color:#1d6553;cursor:ew-resize;margin:0}.pressure-range-ends{display:flex;justify-content:space-between;color:#6d7f73;font-size:10px;margin:0 0 19px}.pressure-raise{width:100%;min-height:48px;border:1px solid #dcb987;color:#865b28;background:#fff3de;border-radius:10px;font-size:12px;padding:11px;font-weight:650}.pressure-raise[aria-pressed=true]{background:#ead4b0;border-color:#ad7c38;color:#644013}.pressure-condition{font-size:11px;line-height:1.7;color:#6d7f73;margin:9px 0 0}.pressure-controls>.text-button{min-height:44px;font-size:11px;padding-left:0}.pressure-finding{background:#e3eedb;border:1px solid #c9dbc0;border-radius:12px;padding:13px 16px;font-size:13px;font-weight:650;line-height:1.7;color:#28553e;margin:16px 0 10px}.pressure-formula{font-size:13px;line-height:1.7;color:#315847;font-variant-numeric:tabular-nums;margin:10px 0}.pressure-assumptions{font-size:10px;line-height:1.8;color:#6d7f73;margin:8px 0}.pressure-evidence>.detective-animation-status{margin-top:10px}.detective-scrubber{margin-top:16px;padding:14px;background:#edf3e8;border:1px solid #d0dec7;border-radius:13px}.detective-scrubber>label{display:flex;align-items:center;justify-content:space-between;gap:10px;color:#365745;font-size:12px;font-weight:650;line-height:1.65}.detective-scrubber output{font-size:11px;background:#fffef6;padding:4px 7px;border-radius:7px;font-variant-numeric:tabular-nums;text-align:right}.detective-scrubber input{width:100%;min-height:44px;accent-color:#28664e;cursor:ew-resize}.detective-presets{display:flex;gap:5px}.detective-presets button{flex:1;min-height:44px;border:1px solid #c3d4b9;background:#fffdf7;border-radius:9px;font-size:11px;padding:8px 5px;color:#3e5d46;line-height:1.4}.detective-presets button[aria-pressed=true]{background:#173f39;color:white;border-color:#173f39;box-shadow:0 3px 8px #173f3920}.detective-scrubber>p{font-size:10px;color:#64806b;line-height:1.7;margin:10px 0 0}#detective-scene:not(:has(.pressure-lab)) svg{cursor:ew-resize;touch-action:pan-y}.concept-presets{display:flex;gap:7px;margin:10px 0 15px;flex-wrap:wrap}.concept-presets button{flex:1;min-height:44px;min-width:70px;border:1px solid #c8d8bd;background:#fffdf6;border-radius:10px;padding:9px 7px;color:#315a43;font-size:12px;font-weight:650}.concept-presets button[aria-pressed=true]{background:#173f39;color:#fffdf6;border-color:#173f39}
button,a.detective-card,.quiz-option,.detective-option,.context-option{transition:background-color .16s,border-color .16s,box-shadow .16s,transform .16s}button:not(:disabled):active{transform:translateY(1px)}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,.pressure-canvas:focus-visible{outline:3px solid #c47d29;outline-offset:3px}.quiz-option:not(:disabled):hover,.detective-option:has(input:not(:disabled)):hover,.context-option:has(input:not(:disabled)):hover{border-color:#689575;box-shadow:0 3px 12px #173f390c}.detective-option:has(input:checked),.context-option:has(input:checked){box-shadow:inset 3px 0 0 #407447}.detective-card:hover{border-color:#b69a62}.text-button,.graph-guide-controls button,.lab-camera button{min-height:44px}
@media(max-width:800px){.pressure-stage{grid-template-columns:1fr;gap:18px}.pressure-controls{border-top:1px solid #d4e1ce;padding-top:16px}.pressure-view{max-width:620px;width:100%;margin:0 auto}}
@media(max-width:650px){.pressure-evidence{padding:12px}.pressure-scene-label{font-size:8px;padding:12px 10px 0;letter-spacing:.5px}.pressure-scene-label>span:last-child{display:none}.pressure-gauges{padding:13px 6px;gap:2px;grid-template-columns:1fr 22px 1fr}.pressure-gauges strong{font-size:21px}.pressure-gauges span,.pressure-gauges small{font-size:10px}.pressure-camera{gap:4px;margin:8px}.pressure-camera button{padding:8px;min-width:40px;font-size:11px}.pressure-camera-hint{font-size:10px;padding:0 12px}.pressure-depth-label{font-size:12px}.pressure-shapes button{padding:9px 6px;font-size:11px}.pressure-finding{padding:12px;font-size:12px}.pressure-formula{font-size:12px}.detective-scrubber{padding:11px}.detective-scrubber>label{flex-wrap:wrap;gap:6px}.detective-presets button{font-size:10px}.concept-presets button{font-size:11px}.pressure-probe-handle circle:last-child{r:48px}}
@media(prefers-reduced-motion:reduce){button,a.detective-card,.quiz-option,.detective-option,.context-option{transition:none}}

/* Ortak 3B laboratuvar: mobilde de aynı kamera ve ölçüm dili. */
.world3d{min-width:0;margin:12px 0;border:1px solid #d3dfd2;border-radius:20px;background:radial-gradient(ellipse at 30% 15%,#fffef7,#eff5eb 70%);overflow:hidden;isolation:isolate}
.world3d-top{display:flex;justify-content:space-between;gap:8px;padding:16px 17px 0;font-size:10px;font-weight:800;letter-spacing:.09em;color:#4e7565}.world3d-top span:last-child{font-weight:500;letter-spacing:0}
.world3d-viewport{touch-action:pan-y;cursor:grab;outline-offset:-4px;user-select:none;-webkit-user-select:none}.world3d-viewport:active{cursor:grabbing}
.world3d .world3d-viewport svg{display:block;width:100%;height:auto;max-height:none;aspect-ratio:600/380;overflow:hidden}.world3d svg .world3d-label{font:600 17px system-ui,sans-serif}
.world3d-toolbar{display:flex;justify-content:center;gap:6px;padding:0 12px 13px;flex-wrap:wrap}.world3d-toolbar button{min-height:44px;min-width:44px;padding:8px 13px;border:1px solid #cfdbce;border-radius:12px;background:#ffffffc9;color:#173f39;font:600 12px inherit;cursor:pointer}.world3d-toolbar button:hover{background:#e0edd7}.world3d-toolbar button[aria-pressed=true]{background:#173f39;color:#fffdf3}
.world3d-readings{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;padding:12px;border-top:1px solid #d9e3d5;background:#fffdf680}.world3d-readings span{border:1px solid #dbe6d2;background:#f6f8ef;padding:8px 10px;border-radius:9px;font-size:12px;font-weight:650}
.world3d .world3d-note{font-size:10px;line-height:1.6;margin:0;padding:10px 15px;color:#627366;background:#ffffff77}.world3d-schematic{margin:8px 0 16px;font-size:12px}.world3d-schematic summary{cursor:pointer;min-height:44px;padding:12px;border-radius:10px;background:#eaf0e1}.world3d-schematic .diagram{margin-top:12px}
.concept-drawing .world3d{margin:0 0 14px}.detective-figure .world3d{margin:0 0 12px}.motion-scene .world3d-top{letter-spacing:0}.motion-scene .world3d-note{font-size:10px}.context-3d-choices{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 16px}.context-3d-choices button{min-height:44px;flex:1;border:1px solid #cad8c6;border-radius:10px;background:#f7f9f0;padding:9px;color:#173f39}.context-3d-choices button[aria-pressed=true]{background:#173f39;color:white}.context-preview-caption{font-size:12px;color:#526657}
@media(max-width:650px){.world3d-top{padding:12px 10px 0;font-size:9px;letter-spacing:0}.world3d-top span:last-child{display:none}.world3d-toolbar{gap:4px;padding:0 5px 10px}.world3d-toolbar button{padding:8px 10px;font-size:11px}.world3d-readings{padding:8px}.world3d-readings span{font-size:11px}.world3d .world3d-note{padding:9px 10px}.world3d{border-radius:15px}}
@media print{.world3d-toolbar,.world3d-note{display:none}.world3d{break-inside:avoid}}
@media (max-width:900px){.lesson-columns,.graph-lesson .lesson-columns{grid-template-columns:minmax(0,1fr)}.world3d-toolbar button{padding:8px 10px}.world3d-top span:last-child{display:none}}
.world3d-toolbar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));max-width:360px;margin:0 auto}.world3d-toolbar button{font-family:inherit;font-size:12px;font-weight:600;min-width:44px}
@media(max-width:650px){.world3d-toolbar{grid-template-columns:repeat(2,minmax(0,1fr));max-width:230px;padding:0 10px 10px}.world3d-toolbar button[data-world3d-camera="right"]{grid-column:2;grid-row:1}.world3d-toolbar button[data-world3d-camera="reset"]{grid-column:1;grid-row:2}.world3d-toolbar button[data-world3d-camera="top"]{grid-column:2;grid-row:2}}

/* Oynatıcı doğrudan deney sahnesine bağlı; kaydırırken sahneden kopmaz. */
.concept-player{position:sticky;top:78px;z-index:3;background:#edf1e5;padding:8px 0 10px;border-radius:12px}
.concept-player .concept-actions{margin:0;display:flex;gap:8px}.concept-player .concept-actions button{min-height:46px}.concept-player .concept-actions button:first-child{flex:1;font-weight:750;font-size:14px}
.concept-player .concept-demo-status:empty{display:none}.concept-player .concept-demo-status{font-size:12px;margin:7px 0 0;min-height:0}
.wave-play-hint{font-size:11px;color:#486556;line-height:1.6;margin:7px 0 0}
.concept-stage .world3d-viewport svg{height:clamp(190px,36dvh,300px);aspect-ratio:auto}.concept-stage .world3d-top{padding-top:10px}
@media(max-width:650px){.concept-player{top:72px}.concept-player .concept-actions button:first-child{font-size:13px}.concept-stage .world3d-viewport svg{height:210px}}

.concept-lesson .visual-box{overflow:visible}

/* Bütün fizik sahneleri kendi kadrajını doldurur; düğmeler yakın kalır. */
.world3d .world3d-viewport svg{height:auto;aspect-ratio:auto;max-height:min(58dvh,460px)}
#lesson-dialog:not(.graph-lesson):has([data-world3d]) .lesson-columns{grid-template-columns:minmax(0,.8fr) minmax(0,1.4fr)}
.detective-dialog .detective-columns{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr)}
.context-dialog .context-columns{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr)}
.pressure-canvas svg{max-height:min(62dvh,500px)}
@media(max-width:900px){#lesson-dialog:not(.graph-lesson):has([data-world3d]) .lesson-columns{grid-template-columns:minmax(0,1fr)}}
@media(max-width:650px){.detective-dialog .detective-columns,.context-dialog .context-columns{grid-template-columns:minmax(0,1fr)}}

.lab-canvas-wrap canvas{height:clamp(280px,44dvh,360px)}

/* Öğrencinin ürünü dokunarak keşfettiği kısa giriş. */
.trial-entry{display:flex;align-items:center;gap:14px;padding:18px 20px;margin:24px 0 12px;border-radius:18px;background:#173f39;color:#fffdf3;text-decoration:none;box-shadow:0 8px 20px #173f3918}
.trial-entry strong,.trial-entry small{display:block}.trial-entry small{margin-top:5px;color:#d3e3d1;line-height:1.5}.trial-entry-icon{font-size:30px}.trial-entry>span:last-child{margin-left:auto;font-size:24px}.trial-entry:hover{background:#28574b}.trial-entry:focus-visible,.trial-card:focus-visible{outline:3px solid #d99d37;outline-offset:4px}
.trial-dialog{max-width:880px}.trial-body{padding:24px 34px 32px}.trial-body h2{font-size:clamp(25px,4vw,38px);margin:12px 0}.trial-body>p{line-height:1.65}.trial-step{font-size:13px;font-weight:700;color:#56715d}.trial-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:12px 0;position:sticky;top:0;background:#fffdf5;z-index:3}.trial-controls>span{font-size:14px;margin-right:auto}.trial-controls button{min-width:78px;min-height:46px;border:1px solid #b9cab8;border-radius:12px;background:white;color:#173f39;font:inherit;font-weight:700;cursor:pointer}.trial-controls button[aria-pressed=true]{background:#173f39;color:white;border-color:#173f39}.trial-scene .world3d-viewport svg{max-height:min(46dvh,380px)}.trial-result{font-size:clamp(16px,2.7vw,22px);font-weight:700;color:#173f39}.trial-feedback{background:#edf1e2;border-left:4px solid #819d5b;padding:14px 18px;border-radius:0 12px 12px 0}.trial-next{margin-top:22px}.trial-card{display:grid;gap:10px;padding:22px;margin-top:10px;border:1px solid #cfb776;border-radius:16px;background:#fbf0d0;text-decoration:none;color:#173f39}.trial-card>span{font-size:24px;font-weight:700}.trial-card small{font-size:14px;line-height:1.6}.trial-card strong{margin-top:6px}.trial-note{color:#68786b;font-size:12px}.trial-next[hidden]{display:none}
@media(max-width:650px){.trial-body{padding:18px}.trial-card{padding:18px}.trial-entry{padding:16px}.trial-controls{top:0}.trial-scene .world3d-top{font-size:9px}}
.trial-dialog>.dialog-top{height:76px;min-height:76px;box-sizing:border-box}.trial-controls{top:76px}

.circuit-direction{display:grid;gap:8px;padding:14px 12px;text-align:center;border-top:1px solid #d0dbce;background:#f6f5e9;font-size:13px;line-height:1.6}.circuit-direction strong{color:#284b44}.circuit-direction span{font-size:12px;color:#52636a}.circuit-direction b{white-space:nowrap;padding:3px 6px;border-radius:5px}.pole-positive{color:#a8372c;background:#fae0d6}.pole-negative{color:#263e4b;background:#e1e8ea}

.circuit-explanation{margin:0;padding:16px 18px;background:#faf9f0;border-top:1px solid #d9dfd0;font-size:12px;line-height:1.75;color:#52636a}.circuit-explanation>strong{display:block;color:#284b44;font-size:13px}.circuit-explanation p{margin:9px 0}.circuit-explanation a{color:#28675b;text-underline-offset:3px}

@media(max-width:430px){.trial-controls>span{flex-basis:100%}.trial-controls button{flex:1}.trial-controls{gap:6px;padding:9px 0}}