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(width<=1050px){.reader-layout{grid-template-columns:minmax(0,1fr) 320px;gap:20px}.lesson-paper{padding:24px}.workspace,.header-inner{padding-left:24px;padding-right:24px}}@media (width<=780px){.header-inner{padding:16px 20px}.header-caption{display:none}.workspace{padding:0 20px}.reader-layout{flex-direction:column;gap:22px;display:flex}.lesson-sidebar{display:contents}.lesson-sidebar .video-panel{order:-1;width:100%;margin-bottom:0}.lesson-paper{width:100%;padding:24px}.section-nav,.study-note{display:none}.lesson-heading{margin-bottom:22px;padding-top:22px}.lesson-description{max-width:280px;line-height:1.7}h1{letter-spacing:-.8px}.prose{font-size:15px}.lesson-meta{gap:12px}.site-footer span:last-child{display:none}.workspace-top{font-size:10px}}@media (width<=420px){.workspace{padding:0 14px}.lesson-paper{padding:20px 16px}.brand{font-size:12px}.brand strong{font-size:16px}.lesson-code{display:none}.prose table{font-size:10px}.prose td,.prose th{padding:6px 4px}.lesson-sidebar 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var(--border);background:var(--surface);border-radius:12px;max-width:720px;margin-bottom:20px;padding:20px 22px}.settings-card h2{color:var(--accent);margin:0 0 12px;font:500 21px/1.3 Georgia,Times New Roman,serif}.sync-line{align-items:center;gap:9px;margin:0 0 12px;font-weight:600;display:flex}.settings-facts{grid-template-columns:max-content 1fr;gap:6px 18px;margin:0 0 16px;font-size:14px;display:grid}.settings-facts dt{color:var(--muted)}.settings-facts dd{overflow-wrap:anywhere;margin:0}.settings-actions{flex-wrap:wrap;gap:10px;display:flex}.settings-form{gap:8px;max-width:420px;margin-bottom:18px;display:grid}.settings-form label{color:var(--muted);font-size:13px}.settings-form input{border:1px solid var(--border);min-height:44px;color:inherit;background:0 0;border-radius:8px;padding:10px 12px;font-size:16px}.stat-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,200px),1fr));gap:14px;margin-bottom:24px;display:grid}.stat{border:1px solid var(--border);background:var(--surface);border-radius:12px;align-content:start;gap:6px;padding:16px 18px;display:grid}.stat span{color:var(--muted);font-size:12px}.stat strong{color:var(--accent);font:500 26px/1.2 Georgia,Times New Roman,serif}.stat small{color:var(--muted);font-size:12px;line-height:1.5}.recent-list{gap:10px;margin:0;padding-left:20px;display:grid}.recent-list span{color:var(--muted);font-size:12px;display:block}@media (width<=420px){.settings-card{padding:16px}.stat strong{font-size:22px}.settings-button{display:none}.main-nav{gap:2px}.nav-link{padding:0 8px}}:root{--hl-sari:#fff0a3;--hl-yesil:#cdebc6;--hl-mavi:#cfe2fa;--hl-pembe:#f9cfe0}[data-theme=dark]{--hl-sari:#5c5220;--hl-yesil:#2c4e30;--hl-mavi:#24405f;--hl-pembe:#5a2c40}mark.isaret{color:inherit;cursor:pointer;background:0 0;border-radius:2px;padding:0 1px}mark.vurgu-sari{background:var(--hl-sari)}mark.vurgu-yesil{background:var(--hl-yesil)}mark.vurgu-mavi{background:var(--hl-mavi)}mark.vurgu-pembe{background:var(--hl-pembe)}mark.alti-cizili{text-decoration:underline;text-decoration-thickness:2px;-webkit-text-decoration-color:var(--accent);-webkit-text-decoration-color:var(--accent);-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent);text-underline-offset:3px}mark.isaret-odak{outline-offset:2px;outline:3px solid #b77a27}.mark-note-badge{color:var(--accent);vertical-align:super;cursor:pointer;margin-left:1px;font-size:12px}.mark-toolbar{z-index:60;background:var(--surface);border:1px solid var(--border);border-radius:12px;align-items:center;gap:6px;padding:6px 8px;display:flex;position:fixed;box-shadow:0 6px 24px #0000002e}.mark-toolbar button,.mark-sheet-row button{min-width:40px;min-height:40px}.swatch{border:2px solid var(--border);border-radius:50%;width:40px;height:40px;padding:0}.swatch.vurgu-sari,.dot-swatch.vurgu-sari{background:var(--hl-sari)}.swatch.vurgu-yesil,.dot-swatch.vurgu-yesil{background:var(--hl-yesil)}.swatch.vurgu-mavi,.dot-swatch.vurgu-mavi{background:var(--hl-mavi)}.swatch.vurgu-pembe,.dot-swatch.vurgu-pembe{background:var(--hl-pembe)}.swatch.selected,.tool.selected{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.tool{border:1px solid var(--border);color:inherit;background:0 0;border-radius:8px;padding:0 8px;font-size:17px}.mark-sheet{z-index:70;justify-content:center;padding:0 8px 8px;display:flex;position:fixed;inset:auto 0 0}.mark-sheet-inner{background:var(--surface);border:1px solid var(--border);border-radius:14px;gap:10px;width:min(640px,100%);max-height:70vh;padding:16px;display:grid;overflow:auto;box-shadow:0 -6px 30px #0003}.mark-sheet-inner label{color:var(--muted);font-size:13px}.mark-sheet-inner textarea{border:1px solid var(--border);width:100%;font:inherit;color:inherit;background:0 0;border-radius:8px;padding:10px;font-size:15px}.mark-sheet-row{flex-wrap:wrap;gap:8px;display:flex}.mark-sheet blockquote,.notebook-quote blockquote{border-left:4px solid var(--border);max-height:9em;margin:0;padding:8px 12px;font-size:15px;line-height:1.6;overflow:auto}.blok-sari blockquote,blockquote.blok-sari{background:var(--hl-sari);border-left-color:#d6b400}.blok-yesil blockquote,blockquote.blok-yesil{background:var(--hl-yesil);border-left-color:#4b9a4f}.blok-mavi blockquote,blockquote.blok-mavi{background:var(--hl-mavi);border-left-color:#3f78c0}.blok-pembe blockquote,blockquote.blok-pembe{background:var(--hl-pembe);border-left-color:#c2507e}.alti-cizili-blok blockquote,blockquote.alti-cizili-blok{border-left-style:dashed;border-left-color:var(--accent)}.link-button{color:var(--accent);background:0 0;border:0;min-height:0;padding:0 4px;text-decoration:underline}.orphan-marks ul{padding-left:20px}.notebook-tools{gap:12px;margin-bottom:24px;display:grid}.filter-chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--border);color:inherit;background:0 0;border-radius:99px;align-items:center;gap:6px;padding:0 14px;font-size:13px;display:inline-flex}.chip.active{border-color:var(--accent);color:var(--accent);background:#e7eee3}[data-theme=dark] .chip.active{background:#24372b}.dot-swatch{border:1px solid var(--border);border-radius:50%;width:12px;height:12px;display:inline-block}.notebook-search{border:1px solid var(--border);min-height:44px;color:inherit;background:0 0;border-radius:8px;max-width:420px;padding:0 12px;font-size:16px}.notebook-course>h2{color:var(--accent);margin:28px 0 8px;font:500 24px/1.3 Georgia,Times New Roman,serif}.notebook-unit>h3{letter-spacing:1.4px;color:var(--muted);margin:18px 0 8px;font-size:13px}.notebook-lesson{border:1px solid var(--border);background:var(--surface);border-radius:12px;margin-bottom:14px;padding:16px 18px}.notebook-lesson h4{margin:0 0 8px;font-size:16px}.notebook-lesson h4 a{text-decoration:none}.notebook-section h5,.notebook-lesson-note h5{color:var(--muted);margin:14px 0 8px;font-size:13px}.notebook-quote{gap:4px;margin-bottom:12px;display:grid}.quote-note{white-space:pre-wrap;margin:0;padding-left:16px;font-size:14px}.quote-meta{color:var(--muted);padding-left:16px;font-size:12px}.notebook-lesson-note p{white-space:pre-wrap;margin:0;font-size:14px;line-height:1.7}.notebook-flat{gap:10px;padding-left:20px;display:grid}.empty-note{color:var(--muted)}@media (width<=780px){.main-nav{scrollbar-width:none;flex:1;min-width:0;overflow-x:auto}.main-nav::-webkit-scrollbar{display:none}.nav-link{flex:none}}@media print{.no-print,.mark-toolbar,.mark-sheet,.page-heading .lesson-description,.notebook-tools{display:none!important}.notebook-lesson{break-inside:avoid;border:0;padding:0}.notebook-quote blockquote{border-left-width:4px;background:0 0!important}.notebook-quote .quote-kind:before{content:"■ "}.notebook-course>h2{break-before:page}.notebook-course:first-of-type>h2{break-before:auto}mark.isaret{text-decoration:underline;background:0 0!important}}.mark-toolbar.docked{flex-wrap:wrap;justify-content:center}.prose details[data-locked]>summary{color:var(--muted)}.prose details[data-locked]>summary:after{content:" 🔒"}.task-panel{border:1px solid var(--border);border-left:4px solid var(--accent);background:var(--surface);border-radius:10px;margin:18px 0;padding:14px 16px;font-size:14px}.task-head{flex-wrap:wrap;justify-content:space-between;gap:10px;margin-bottom:10px;display:flex}.task-status{color:var(--muted);font-size:12px}.task-form{max-width:none}.task-form textarea{border:1px solid var(--border);width:100%;font:inherit;color:inherit;background:0 0;border-radius:8px;padding:10px;font-size:15px}.evidence-choice{border:1px solid var(--border);border-radius:8px;gap:8px;margin:6px 0;padding:10px 12px;display:grid}.evidence-choice legend{color:var(--muted);padding:0 4px;font-size:13px}.evidence-choice label{color:inherit;align-items:flex-start;gap:10px;min-height:44px;font-size:14px;display:flex}.evidence-choice label.disabled{opacity:.55}.evidence-choice input{flex:none;width:20px;height:20px;margin-top:2px}.evidence-choice small{color:var(--muted)}.task-answer{white-space:pre-wrap;border-left:3px solid var(--border);padding-left:10px}.quiz-answers{gap:8px;margin-bottom:12px;display:grid}.quiz-answers label{align-items:center;gap:8px;display:flex}.quiz-answers input{border:1px solid var(--border);min-width:0;min-height:44px;color:inherit;background:0 0;border-radius:8px;flex:1;padding:0 10px;font-size:15px}.quiz-grades{gap:8px;margin-bottom:12px;display:grid}.quiz-grade{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding-bottom:8px;display:flex}.grade-buttons{gap:6px;display:flex}.chip.wrong.active{color:#b3473a;background:#f8e3e0;border-color:#b3473a}[data-theme=dark] .chip.wrong.active{color:#f0b4ab;background:#4a2620}.review-count{color:var(--muted);font-size:14px}.review-count strong{color:var(--accent);font-size:24px}.flashcard{border:1px solid var(--border);background:var(--surface);border-radius:14px;gap:14px;max-width:720px;padding:22px;display:grid}.flashcard-meta{align-items:center;gap:10px;display:flex}.flashcard-face{font-size:18px;line-height:1.7}.flashcard hr{border:0;border-top:1px dashed var(--border);width:100%;margin:0}.grade-row{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.grade-row .button{border:1px solid var(--border);color:inherit;background:0 0;flex-direction:column;gap:2px;padding:8px 4px}.grade-row small{color:var(--muted);font-size:11px}.grade-1{border-color:#b3473a!important}.grade-2{border-color:#bd8b35!important}.grade-3{border-color:#4d8263!important}.grade-4{border-color:#3f78a8!important}.reveal{justify-self:start}.unit-head{justify-content:space-between;align-items:center;gap:10px;display:flex}.unit-status-list{border-top:1px dashed var(--border);gap:6px;margin-top:12px;padding-top:10px;display:grid}.unit-status{border-left:3px solid var(--border);justify-content:space-between;align-items:center;gap:8px;padding-left:8px;font-size:13px;display:flex}.unit-usta{border-left-color:#4d8263}.unit-gecici{border-left-color:#bd8b35}.unit-zayif{border-left-color:#b3473a}.review-side{justify-items:end;gap:10px;display:grid}.exam-list{gap:14px;max-width:760px;padding-left:22px;display:grid}.exam-item{border-bottom:1px solid var(--border);gap:6px;padding-bottom:12px;display:grid}.exam-question p,.exam-answer p{margin:0}.exam-input{border:1px solid var(--border);min-height:44px;color:inherit;background:0 0;border-radius:8px;padding:0 10px;font-size:15px}.exam-answer{border-left:3px solid var(--accent);padding-left:10px;font-size:15px}.exam-mine{color:var(--muted);margin:0;font-size:14px}.code-editor{width:100%;max-width:100%;color:inherit;background:var(--surface);border:1px solid var(--border);padding:12px;font:14px/1.6 monospace;display:block}.lab-output{white-space:pre-wrap;overflow-wrap:anywhere;max-height:24rem;padding:12px;overflow:auto}.sandbox-frame{display:none}.circuit-frame{border:1px solid var(--border);width:100%;height:65vh;min-height:400px}.settings-card label{margin-block:12px;display:block}.settings-card textarea,.settings-card input,.settings-card select{max-width:100%}.main-nav,.header-inner{flex-wrap:wrap}.focus-toggle{margin:12px}.focus-mode .site-header,.focus-mode .workspace-top,.focus-mode .site-footer,.focus-mode .lesson-sidebar{display:none}.focus-mode .reader-layout{max-width:860px;margin-inline:auto;display:block}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}@media (width<=600px){.header-inner{gap:16px;padding:16px}.main-nav{order:3;gap:8px;width:100%}.nav-link{padding:8px}}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}