@charset "UTF-8";:root{--font-size:16px;--font-size-smaller:0.875rem;--font-size-smallest:0.75rem;--body-font-weight:400;--body-background:white;--body-background-tint:transparent;--body-font-color:black;--border-radius:0.25rem}/*!modern-normalize v3.0.1 | MIT License | https://github.com/sindresorhus/modern-normalize*/*,::before,::after{box-sizing:border-box}html{font-family:system-ui,segoe ui,Roboto,Helvetica,Arial,sans-serif,apple color emoji,segoe ui emoji;line-height:1.15;-webkit-text-size-adjust:100%;tab-size:4}body{margin:0}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Consolas,liberation mono,Menlo,monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{border-color:initial}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,[type=button],[type=reset],[type=submit]{-webkit-appearance:button}legend{padding:0}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}.flex{display:flex}.flex.gap{gap:1rem}.flex-auto{flex:auto}.flex-even{flex:1 1}.flex-wrap{flex-wrap:wrap}.justify-start{justify-content:flex-start}.justify-end{justify-content:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.align-center{align-items:center}.mx-auto{margin:0 auto}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-small,small{font-size:.875em}.hidden{display:none}input.toggle{height:0;width:0;overflow:hidden;opacity:0;position:absolute}html{font-size:var(--font-size);scroll-behavior:smooth;touch-action:manipulation;scrollbar-gutter:stable}body{min-width:20rem;color:var(--body-font-color);background:var(--body-background)var(--body-background-tint);font-weight:var(--body-font-weight);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-weight:inherit}a{flex:auto;align-items:center;gap:.5em;text-decoration:none;cursor:default}a[href],a[role=button]{color:var(--color-link);cursor:pointer}:focus-visible,input.toggle:focus-visible+label{outline-style:auto;outline-color:var(--color-link)}nav ul{padding:0;margin:0;list-style:none}nav ul li{position:relative}nav ul a{padding:.5em 0;display:flex;transition:opacity .1s ease-in-out}nav ul a[href]:hover,nav ul a[role=button]:hover{opacity:.5}nav ul ul{padding-inline-start:1.5em}nav>ul{margin-bottom:1rem}ul.pagination{display:flex;justify-content:center;list-style-type:none;padding-inline-start:0}ul.pagination .page-item a{padding:1rem}.container{max-width:90rem;margin:0 auto}.book-icon{filter:var(--icon-filter)}a .book-icon{height:1em;width:1em}.book-brand{margin-top:0;margin-bottom:1rem}.book-brand img{height:1.5em;width:1.5em}.book-menu{flex:0 0 16rem;font-size:var(--font-size-smaller)}.book-menu .book-menu-content{width:16rem;padding:1rem;position:fixed;top:0;bottom:0;overflow-x:hidden;overflow-y:auto}.book-menu a,.book-menu label{color:inherit;word-wrap:break-word;display:flex}.book-menu a.active{color:var(--color-link)}.book-menu label>img:last-child{height:1em;width:1em;cursor:pointer;align-self:center;transition:transform .1s ease-in-out}.book-menu input.toggle+label+ul{display:none}.book-menu input.toggle:checked+label>img:last-child{transform:rotate(90deg)}.book-menu input.toggle:checked+label+ul{display:block}body[dir=rtl] .book-menu input.toggle+label>img:last-child{transform:rotate(180deg)}body[dir=rtl] .book-menu input.toggle:checked+label>img:last-child{transform:rotate(90deg)}.book-section-flat{margin:1rem 0}.book-section-flat>a,.book-section-flat>span,.book-section-flat>label{font-weight:bolder}.book-section-flat>ul{padding-inline-start:0}.book-page{min-width:20rem;flex-grow:1;padding:1rem}.book-post{margin-bottom:4rem}.book-post .book-post-date img{height:1em;width:1em;margin-inline-end:.5em}.book-post .book-post-content{margin-top:1rem}.book-post .book-post-thumbnail{flex:0 0 34%}.book-post .book-post-thumbnail img{width:100%;aspect-ratio:4/3;object-fit:cover}.book-header{margin-bottom:1rem}.book-header label{line-height:0}.book-header h3{overflow:hidden;text-overflow:ellipsis;margin:0 1rem}.book-layout-landing .book-header{display:block;position:relative;z-index:1}.book-layout-landing .book-header nav>ul{display:flex;gap:1rem;justify-content:end}.book-layout-landing .book-header nav>ul>li{display:block;white-space:nowrap}.book-layout-landing .book-header nav>ul>li>ul{display:none;position:absolute;padding:0}.book-layout-landing .book-header nav>ul>li:hover>ul,.book-layout-landing .book-header nav>ul>li:focus-within>ul{display:block}.book-search{position:relative;margin:.5rem 0}.book-search input{width:100%;padding:.5rem;border:1px solid var(--gray-200);border-radius:var(--border-radius);background:var(--gray-100);color:var(--body-font-color)}.book-search input:required+.book-search-spinner{display:block}.book-search .book-search-spinner{position:absolute;top:0;margin:.5rem;margin-inline-start:calc(100% - 1.5rem);width:1rem;height:1rem;border:1px solid transparent;border-top-color:var(--body-font-color);border-radius:50%;animation:spin 1s ease infinite}@keyframes spin{100%{transform:rotate(360deg)}}.book-search ul a{padding-bottom:0}.book-search small{opacity:.5}.book-toc{flex:0 0 16rem;font-size:var(--font-size-smallest)}.book-toc .book-toc-content{width:16rem;padding:1rem;position:fixed;top:0;bottom:0;overflow-x:hidden;overflow-y:auto}.book-toc a{display:block}.book-toc img{height:1em;width:1em}.book-toc nav>ul>li:first-child{margin-top:0}.book-footer{padding-top:1rem;font-size:var(--font-size-smaller)}.book-footer a{margin:.25rem 0;padding:.25rem 0}.book-comments{margin-top:1rem}.book-copyright{margin-top:1rem}.book-languages span{padding:0}.book-languages ul{padding-inline-start:1.5em}.book-menu-content,.book-toc-content{transition:.2s ease-in-out;transition-property:transform,margin,opacity,visibility;will-change:transform,margin,opacity}@media screen and (max-width:56rem){.book-menu{visibility:hidden;margin-inline-start:-16rem;z-index:1}.book-menu .book-menu-content{background:var(--body-background)}.book-toc{display:none}.book-header{display:block}.book-post-container{flex-direction:column-reverse}#menu-control,#toc-control{display:inline}#menu-control:checked~main .book-menu{visibility:initial}#menu-control:checked~main .book-menu .book-menu-content{transform:translateX(16rem);box-shadow:0 0 .5rem rgba(0,0,0,.1)}#menu-control:checked~main .book-page{opacity:.25}#menu-control:checked~main .book-menu-overlay{display:block;position:fixed;top:0;bottom:0;left:0;right:0}#toc-control:checked~main .book-header aside{display:block}body[dir=rtl] #menu-control:checked~main .book-menu .book-menu-content{transform:translateX(-16rem)}}@media screen and (min-width:90rem){main{gap:1rem;padding:1rem}.book-menu .book-menu-content,.book-toc .book-toc-content{top:1rem}}@media print{.book-menu,.book-footer,.book-toc{display:none}.book-header,.book-header aside{display:block}main{display:block!important}}.markdown{line-height:1.6}.markdown>:first-child,.markdown>section:first-child :first-child{margin-top:0}.markdown h1,.markdown h2,.markdown h3,.markdown h4,.markdown h5,.markdown h6{font-weight:inherit;line-height:1;margin-top:1.5em;margin-bottom:1rem}.markdown h1 a.anchor,.markdown h2 a.anchor,.markdown h3 a.anchor,.markdown h4 a.anchor,.markdown h5 a.anchor,.markdown h6 a.anchor{opacity:0;font-size:.75em;margin-inline-start:.25em}.markdown h1:hover a.anchor,.markdown h1 a.anchor:focus-visible,.markdown h2:hover a.anchor,.markdown h2 a.anchor:focus-visible,.markdown h3:hover a.anchor,.markdown h3 a.anchor:focus-visible,.markdown h4:hover a.anchor,.markdown h4 a.anchor:focus-visible,.markdown h5:hover a.anchor,.markdown h5 a.anchor:focus-visible,.markdown h6:hover a.anchor,.markdown h6 a.anchor:focus-visible{opacity:initial;text-decoration:none}.markdown h1{font-size:2rem}.markdown h2{font-size:1.5rem}.markdown h3{font-size:1.25rem}.markdown h4{font-size:1.125rem}.markdown h5{font-size:1rem}.markdown h6{font-size:.875rem}.markdown b,.markdown optgroup,.markdown strong{font-weight:bolder}.markdown a{text-decoration:none}.markdown a[href]:hover{text-decoration:underline}.markdown a[href]:visited{color:var(--color-visited-link)}.markdown img{max-width:100%;height:auto}.markdown code{direction:ltr;unicode-bidi:embed;padding:.125em .25em;background:var(--gray-100);border:1px solid var(--gray-200);border-radius:var(--border-radius);font-size:.875em}.markdown pre{padding:1rem;background:var(--gray-100);border:1px solid var(--gray-200);border-radius:var(--border-radius);overflow-x:auto}.markdown pre:focus{outline-style:auto;outline-color:var(--color-link)}.markdown pre code{padding:0;border:0;background:0 0}.markdown p{word-wrap:break-word}.markdown blockquote{margin:1rem 0;padding:.5rem 1rem .5rem .75rem;border-inline-start:.25rem solid var(--gray-200);border-radius:var(--border-radius)}.markdown blockquote :first-child{margin-top:0}.markdown blockquote :last-child{margin-bottom:0}.markdown table{overflow:auto;display:block;border-spacing:0;border-collapse:collapse;margin-top:1rem;margin-bottom:1rem}.markdown table tr th,.markdown table tr td{padding:.5rem 1rem;border:1px solid var(--gray-200);text-align:start}.markdown table tr:nth-child(2n){background:var(--gray-100)}.markdown hr{height:1px;border:none;background:var(--gray-200)}.markdown ul,.markdown ol{padding-inline-start:2rem;word-wrap:break-word}.markdown dl dt{font-weight:bolder;margin-top:1rem}.markdown dl dd{margin-inline-start:0;margin-bottom:1rem}.markdown .highlight{direction:ltr;unicode-bidi:embed;border-radius:var(--border-radius)}.markdown .highlight table tbody{border:1px solid var(--gray-200)}.markdown .highlight table tr pre{border:0}.markdown .highlight table tr td pre code>span{display:flex}.markdown .highlight table tr td:nth-child(1) pre{margin:0;padding-inline-end:0}.markdown .highlight table tr td:nth-child(2) pre{margin:0;padding-inline-start:0}.markdown details{padding:1rem;margin:1rem 0;border:1px solid var(--gray-200);border-radius:var(--border-radius)}.markdown details summary{line-height:1;padding:1rem;margin:-1rem;cursor:pointer;list-style:none}.markdown details summary::before{content:"›";display:inline-block;margin-inline-end:.5rem;transition:transform .1s ease-in-out}.markdown details[open] summary{margin-bottom:0}.markdown details[open] summary::before{transform:rotate(90deg)}.markdown figure{margin:1rem 0}.markdown figure figcaption{margin-top:1rem}.markdown-inner>:first-child,.markdown .book-steps>ol>li>:first-child,.markdown figure figcaption>:first-child{margin-top:0}.markdown-inner>:last-child,.markdown .book-steps>ol>li>:last-child,.markdown figure figcaption>:last-child{margin-bottom:0}.markdown .book-tabs{margin-top:1rem;margin-bottom:1rem;border:1px solid var(--gray-200);border-radius:var(--border-radius);display:flex;flex-wrap:wrap}.markdown .book-tabs label{display:inline-block;padding:.5rem 1rem;border-bottom:1px transparent;cursor:pointer}.markdown .book-tabs .book-tabs-content{order:999;width:100%;border-top:1px solid var(--gray-100);padding:1rem;display:none}.markdown .book-tabs input[type=radio]:checked+label{border-bottom:1px solid var(--color-link)}.markdown .book-tabs input[type=radio]:checked+label+.book-tabs-content{display:block}.markdown .book-columns{gap:1rem}.markdown .book-columns>div{margin:1rem 0;min-width:13.2rem}.markdown .book-columns>ul{list-style:none;display:flex;padding:0;flex-wrap:wrap;gap:1rem}.markdown .book-columns>ul>li{flex:1 1;min-width:13.2rem}.markdown a.book-btn[href]{display:inline-block;font-size:var(--font-size-smaller);color:var(--color-link);line-height:2rem;padding:0 1rem;border:1px solid var(--color-link);border-radius:var(--border-radius);cursor:pointer}.markdown a.book-btn[href]:hover{text-decoration:none}.markdown .book-hint.note{border-color:var(--color-accent-note);background-color:var(--color-accent-note-tint)}.markdown .book-hint.tip{border-color:var(--color-accent-tip);background-color:var(--color-accent-tip-tint)}.markdown .book-hint.important{border-color:var(--color-accent-important);background-color:var(--color-accent-important-tint)}.markdown .book-hint.warning{border-color:var(--color-accent-warning);background-color:var(--color-accent-warning-tint)}.markdown .book-hint.caution{border-color:var(--color-accent-caution);background-color:var(--color-accent-caution-tint)}.markdown .book-hint.default{border-color:var(--color-accent-default);background-color:var(--color-accent-default-tint)}.markdown .book-hint.info{border-color:var(--color-accent-info);background-color:var(--color-accent-info-tint)}.markdown .book-hint.success{border-color:var(--color-accent-success);background-color:var(--color-accent-success-tint)}.markdown .book-hint.danger{border-color:var(--color-accent-danger);background-color:var(--color-accent-danger-tint)}.markdown .book-badge{display:inline-block;font-size:var(--font-size-smaller);font-weight:var(--body-font-weight);vertical-align:middle;border-radius:var(--border-radius);border:1px solid var(--accent-color);overflow:hidden;text-wrap:nowrap;color:var(--body-font-color)}.markdown .book-badge.note{--accent-color:var(--color-accent-note)}.markdown .book-badge.tip{--accent-color:var(--color-accent-tip)}.markdown .book-badge.important{--accent-color:var(--color-accent-important)}.markdown .book-badge.warning{--accent-color:var(--color-accent-warning)}.markdown .book-badge.caution{--accent-color:var(--color-accent-caution)}.markdown .book-badge.default{--accent-color:var(--color-accent-default)}.markdown .book-badge.info{--accent-color:var(--color-accent-info)}.markdown .book-badge.success{--accent-color:var(--color-accent-success)}.markdown .book-badge.danger{--accent-color:var(--color-accent-danger)}.markdown .book-badge span{display:inline-block;padding:0 .5rem}.markdown .book-badge span.book-badge-value{color:var(--body-background);background-color:var(--accent-color)}.markdown .book-steps{position:relative}.markdown .book-steps>ol{counter-reset:steps;list-style:none;padding-inline-start:1.25rem;margin-top:2rem}.markdown .book-steps>ol>li::before{content:counter(steps);counter-increment:steps;position:absolute;display:flex;justify-content:center;left:.5rem;height:1.5rem;width:1.5rem;padding:.25rem;border-radius:.5rem;white-space:nowrap;line-height:1rem;color:var(--body-background);background:var(--gray-500);outline:.25rem solid var(--body-background)}.markdown .book-steps>ol>li{border-inline-start:1px solid var(--gray-500);padding-inline-start:3rem;padding-bottom:2rem}.markdown .book-steps>ol>li:last-child{border:0}.markdown .book-card{display:block;overflow:hidden;height:100%;border-radius:var(--border-radius);border:1px solid var(--gray-200)}.markdown .book-card>a{display:block;height:100%}.markdown .book-card>a[href],.markdown .book-card>a[href]:visited{color:var(--body-font-color)}.markdown .book-card>a[href]:hover{text-decoration:none;background:var(--gray-100)}.markdown .book-card>a>img,.markdown .book-card>img{width:100%;display:block;aspect-ratio:4/3;object-fit:cover}.markdown .book-card .markdown-inner,.markdown .book-card figure figcaption,.markdown figure .book-card figcaption,.markdown .book-card .book-steps>ol>li{padding:1rem}.markdown .book-image input+img{cursor:zoom-in;transition:transform .2s ease-in-out}.markdown .book-image input:checked+img{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--body-background);object-fit:contain;width:100%;height:100%;z-index:1;cursor:zoom-out;padding:1rem}.markdown .book-asciinema{margin:1rem 0}.markdown .book-codeblock-filename{background:var(--gray-100);border:1px solid var(--gray-200);border-bottom:0;font-size:var(--font-size-smaller);margin-top:1rem;padding:.25rem .5rem;border-start-start-radius:var(--border-radius);border-start-end-radius:var(--border-radius)}.markdown .book-codeblock-filename a{color:var(--body-font-color)}.markdown .book-codeblock-filename+.highlight pre{margin-top:0;border-start-start-radius:0;border-start-end-radius:0}html{transition:background-color .3s ease,color .3s ease}body{transition:background-color .3s ease,color .3s ease}.book-page pre{border-radius:8px;padding:1.25rem 1rem;position:relative}.book-page code{font-size:.875rem}.book-page :not(pre)>code{background:var(--gray-100);padding:.15rem .4rem;border-radius:4px;font-size:.85em;border:1px solid var(--gray-200)}.book-page table{border-collapse:separate;border-spacing:0;border-radius:8px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.1)}.book-page th,.book-page td{border:1px solid var(--gray-200);padding:.75rem 1rem}.book-page th{font-weight:600;background:var(--gray-100)}.book-page blockquote{border-left:4px solid var(--color-link);background:var(--gray-100);border-radius:0 8px 8px 0;padding:.75rem 1.25rem;margin:1.5rem 0}.book-page blockquote p{margin:.25rem 0}.book-menu{font-size:.9rem}.book-menu a{transition:color .2s ease;border-radius:4px;padding:.25rem .5rem}.book-menu a:hover{color:var(--color-link);background:var(--gray-100)}.book-menu a.active{color:var(--color-link);font-weight:600;background:var(--gray-100)}.book-header{border-bottom:1px solid var(--gray-200);padding-bottom:.5rem;margin-bottom:1rem}a{transition:color .2s ease,opacity .2s ease}.book-page h1{border-bottom:2px solid var(--gray-200);padding-bottom:.5rem;margin-bottom:1.5rem}.book-page h2{border-bottom:1px solid var(--gray-200);padding-bottom:.3rem;margin-bottom:1rem;margin-top:2rem}.book-page input[type=checkbox]{margin-right:.5rem;transform:scale(1.1);accent-color:var(--color-link)}.book-page hr{border:none;height:1px;background:linear-gradient(to right,transparent,var(--gray-200),transparent);margin:2rem 0}.book-page img{border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.15);margin:1rem 0}.book-page dt{font-weight:600;color:var(--color-link)}.book-page dd{margin-left:1.5rem;margin-bottom:.5rem}body::-webkit-scrollbar{width:8px}body::-webkit-scrollbar-track{background:var(--body-background)}body::-webkit-scrollbar-thumb{background:var(--gray-500);border-radius:4px}body::-webkit-scrollbar-thumb:hover{background:var(--color-link)}.book-search input{border-radius:8px;border:1px solid var(--gray-200);padding:.5rem .75rem;font-size:.875rem;transition:border-color .2s ease,box-shadow .2s ease}.book-search input:focus{outline:none;border-color:var(--color-link);box-shadow:0 0 0 3px rgba(129,161,193,.2)}.book-page p{line-height:1.7;margin-bottom:1rem}.book-page li{line-height:1.6;margin-bottom:.25rem}.book-page .badge{display:inline-block;padding:.2rem .6rem;border-radius:999px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.book-page .table-wrapper{overflow-x:auto;border-radius:8px}.exam-controls{display:flex;flex-wrap:wrap;gap:1.5rem;align-items:center;justify-content:space-between;background:var(--gray-100);border:1px solid var(--gray-200);border-radius:12px;padding:1rem 1.5rem;margin-bottom:2rem;transition:background .3s ease,border-color .3s ease}.exam-timer{display:flex;align-items:center;gap:1rem}.timer-face{display:flex;align-items:baseline;gap:.1rem;font-variant-numeric:tabular-nums;font-family:courier new,Courier,monospace;font-size:1.75rem;font-weight:700;color:var(--body-font-color);background:var(--body-background);padding:.35rem .85rem;border-radius:8px;border:1px solid var(--gray-200);min-width:7rem;text-align:center;transition:color .3s ease,border-color .3s ease,background .3s ease}.timer-face .timer-minutes{min-width:2.5ch}.timer-face .timer-separator{animation:timer-blink 1s step-end infinite}.timer-face .timer-seconds{min-width:2.5ch}.timer-running .timer-separator{animation:timer-blink 1s step-end infinite}.timer-paused .timer-separator,.timer-finished .timer-separator{animation:none;opacity:.4}@keyframes timer-blink{50%{opacity:0}}.timer-status{font-size:.8rem;color:var(--gray-500);white-space:nowrap}.timer-controls{display:flex;gap:.4rem}.timer-btn{padding:.35rem .75rem;font-size:.8rem;font-family:inherit;border:1px solid var(--gray-200);border-radius:6px;background:var(--body-background);color:var(--body-font-color);cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease;user-select:none;-webkit-user-select:none;line-height:1.4}.timer-btn:hover{background:var(--gray-200);border-color:var(--gray-400)}.timer-btn:active{transform:scale(.95)}.timer-btn.timer-start{background:var(--color-link);color:#fff;border-color:var(--color-link)}.timer-btn.timer-start:hover{opacity:.9}.timer-btn.timer-pause{display:none}.timer-running .timer-pause{display:inline-block}.timer-running .timer-start{display:none}.timer-warning .timer-face{color:#e05a47;border-color:#e05a47;background:#fef2f1}.timer-warning .timer-status{color:#e05a47;font-weight:600}.timer-finished .timer-face{color:#c0392b;border-color:#c0392b;background:#fdecea}.timer-finished .timer-status{color:#c0392b;font-weight:700}.timer-finished .timer-btn.timer-start{opacity:.5;cursor:not-allowed}.exam-progress-check{display:flex;align-items:center;gap:.5rem;white-space:nowrap;font-size:.9rem}.exam-progress-check input[type=checkbox]{transform:scale(1.2);accent-color:var(--color-link);cursor:pointer}.exam-progress-check label{cursor:pointer;user-select:none;-webkit-user-select:none}.exam-dashboard-header{text-align:center;margin-bottom:2rem;padding:2rem;background:var(--gray-100);border-radius:12px;border:1px solid var(--gray-200)}.exam-dashboard-header h1{border-bottom:none;margin-bottom:.5rem;margin-top:0}.exam-dashboard-header .exam-progress-summary{font-size:1.1rem;color:var(--gray-500)}.exam-progress-bar-wrapper{width:100%;max-width:400px;margin:1rem auto;background:var(--gray-200);border-radius:999px;height:1.5rem;overflow:hidden;position:relative}.exam-progress-bar-fill{height:100%;background:var(--color-link);border-radius:999px;transition:width .5s ease;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;color:#fff;min-width:0}.exam-dashboard-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem;margin:1.5rem 0}.exam-dashboard-card{border:1px solid var(--gray-200);border-radius:10px;padding:1.25rem;background:var(--body-background);transition:box-shadow .2s ease,border-color .2s ease}.exam-dashboard-card:hover{box-shadow:0 2px 8px rgba(0,0,0,8%);border-color:var(--gray-300)}.exam-dashboard-card h3{margin-top:0;margin-bottom:.5rem;font-size:1.05rem}.exam-dashboard-card p{font-size:.85rem;color:var(--gray-500);margin-bottom:.75rem}.exam-dashboard-card .exam-dashboard-check{transform:scale(1.3);accent-color:var(--color-link);cursor:pointer}.exam-dashboard-card .card-status{font-size:.8rem;color:var(--gray-500);margin-left:.5rem}.exam-dashboard-card.completed{border-color:var(--color-link);background:rgba(94,129,172,5%)}.btn-reset{display:inline-block;padding:.5rem 1.25rem;font-size:.85rem;font-family:inherit;border:1px solid #e05a47;border-radius:8px;background:0 0;color:#e05a47;cursor:pointer;transition:background .2s ease,color .2s ease;margin-top:1rem}.btn-reset:hover{background:#e05a47;color:#fff}.exam-stats{display:flex;gap:2rem;justify-content:center;flex-wrap:wrap;margin:1.5rem 0}.exam-stat-card{text-align:center;padding:1rem 1.5rem;background:var(--body-background);border:1px solid var(--gray-200);border-radius:10px;min-width:120px}.exam-stat-card .stat-number{font-size:2rem;font-weight:700;color:var(--color-link);display:block}.exam-stat-card .stat-label{font-size:.8rem;color:var(--gray-500);margin-top:.25rem;display:block}.copy-button{position:absolute;top:.5rem;right:.5rem;z-index:2;padding:.25rem .65rem;font-size:.75rem;font-family:inherit;line-height:1.4;border:1px solid var(--gray-200);border-radius:6px;background:var(--gray-100);color:var(--gray-500);cursor:pointer;opacity:0;transition:opacity .2s ease,background .2s ease,color .2s ease,border-color .2s ease;user-select:none;-webkit-user-select:none}.copy-button:hover{background:var(--gray-200);color:var(--body-font-color);border-color:var(--gray-500)}.copy-button.copied{background:var(--color-link);color:#fff;border-color:var(--color-link);opacity:1}pre:hover>.copy-button,.copy-button.copied{opacity:1}pre:focus-within>.copy-button{opacity:1}.dashboard-section-card{border:1px solid var(--gray-200);border-radius:12px;padding:1rem 1.25rem;background:var(--body-background);transition:box-shadow .2s ease,border-color .2s ease}.dashboard-section-card:hover{box-shadow:0 2px 8px rgba(0,0,0,8%);border-color:var(--gray-300)}.dashboard-section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem}.dashboard-section-badge{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:.15rem .5rem;border-radius:999px;background:var(--gray-100);color:var(--gray-500);border:1px solid var(--gray-200)}.dashboard-section-count{font-size:.85rem;font-weight:600;color:var(--gray-500)}.dashboard-section-bar-wrapper{width:100%;height:4px;background:var(--gray-200);border-radius:999px;overflow:hidden;margin-bottom:.75rem}.dashboard-section-bar-fill{height:100%;background:var(--color-link);border-radius:999px;transition:width .5s ease}.dashboard-section-chapters{display:flex;flex-direction:column;gap:.15rem}.dashboard-chapter-row{display:flex;align-items:center;gap:.5rem;padding:.3rem .4rem;border-radius:6px;transition:background .15s ease;font-size:.85rem}.dashboard-chapter-row:hover{background:var(--gray-100)}.dashboard-chapter-row.completed{color:var(--body-font-color)}.dashboard-chapter-check{transform:scale(1.1);accent-color:var(--color-link);cursor:pointer;flex-shrink:0}.dashboard-chapter-status{font-size:.85rem;flex-shrink:0;width:1.2em;text-align:center}.dashboard-chapter-title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.domain-confidence-cell{display:flex;gap:.4rem;align-items:center;flex-wrap:wrap}.domain-confidence-option{display:inline-flex;align-items:center;gap:.2rem;cursor:pointer;padding:.25rem .4rem;border-radius:8px;border:2px solid transparent;transition:all .15s ease;font-size:1.1rem;user-select:none;-webkit-user-select:none}.domain-confidence-option:hover{transform:scale(1.15);background:var(--gray-100)}.domain-confidence-option.selected{transform:scale(1.1)}.domain-confidence-radio{position:absolute;opacity:0;width:0;height:0;pointer-events:none}.domain-score-input{width:3.5em;padding:.2em .4em;border-radius:6px;border:1px solid var(--gray-200);background:var(--body-background);color:var(--body-font-color);font-family:inherit;font-size:.85rem;text-align:center;transition:border-color .2s ease,box-shadow .2s ease}.domain-score-input:focus{outline:none;border-color:var(--color-link);box-shadow:0 0 0 3px rgba(94,129,172,.2)}.achievement-date-input{padding:.3em .5em;border-radius:6px;border:1px solid var(--gray-200);background:var(--body-background);color:var(--body-font-color);font-family:inherit;font-size:.85rem;width:100%;box-sizing:border-box;cursor:text;transition:border-color .2s ease,box-shadow .2s ease}.achievement-date-input:focus{outline:none;border-color:var(--color-link);box-shadow:0 0 0 3px rgba(94,129,172,.2)}ul.exam-checklist{list-style:none;padding-left:0}ul.exam-checklist li{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem;border-radius:8px;border:1px solid transparent;transition:all .2s ease;cursor:pointer;margin-bottom:.25rem}ul.exam-checklist li:hover{background:var(--gray-100);border-color:var(--gray-200)}ul.exam-checklist li.exam-checklist-done{opacity:.6;text-decoration:line-through}ul.exam-checklist li.exam-checklist-done:hover{opacity:.8}ul.exam-checklist input[type=checkbox]{transform:scale(1.15);accent-color:var(--color-link);cursor:pointer;flex-shrink:0}.checklist-date-input{margin-left:.5rem;padding:.2em .5em;border-radius:6px;border:1px solid var(--gray-200);background:var(--body-background);color:var(--body-font-color);font-family:inherit;font-size:.85rem;cursor:text;transition:border-color .2s ease,box-shadow .2s ease}.checklist-date-input:focus{outline:none;border-color:var(--color-link);box-shadow:0 0 0 3px rgba(94,129,172,.2)}.chapter-status-text{font-size:.9rem;flex-shrink:0}.chapter-progress-bar{display:flex;align-items:center;gap:.75rem;padding:1rem 1.25rem;background:var(--gray-100);border:1px solid var(--gray-200);border-radius:10px;margin:2rem 0}.chapter-complete-checkbox{transform:scale(1.2);accent-color:var(--color-link);cursor:pointer;flex-shrink:0}.chapter-complete-label{cursor:pointer;font-weight:600;flex:1;user-select:none;-webkit-user-select:none}.chapter-status-badge{font-size:.8rem;color:var(--gray-500);white-space:nowrap;flex-shrink:0}.exam-interactive-controls{background:var(--gray-100);border:1px solid var(--gray-200);border-radius:12px;padding:1.25rem 1.5rem;margin-bottom:1.5rem}.exam-interactive-header h3{margin:0 0 .25rem;font-size:1.1rem}.exam-interactive-subtitle{margin:0 0 1rem;font-size:.85rem;color:var(--gray-500)}.exam-interactive-actions{display:flex;gap:.75rem;flex-wrap:wrap}.exam-btn{padding:.6rem 1.25rem;font-size:.9rem;font-family:inherit;font-weight:600;border-radius:8px;border:1px solid var(--gray-200);background:var(--body-background);color:var(--body-font-color);cursor:pointer;transition:all .2s ease;user-select:none;-webkit-user-select:none}.exam-btn:hover{box-shadow:0 2px 6px rgba(0,0,0,.1);border-color:var(--gray-400)}.exam-btn-submit{background:var(--color-link);color:#fff;border-color:var(--color-link)}.exam-btn-submit:hover{opacity:.9}.exam-btn-reset{background:0 0;color:var(--gray-500)}.exam-btn-reset:hover{background:var(--gray-200);color:var(--body-font-color)}.exam-question-card{border:1px solid var(--gray-200);border-radius:10px;padding:1.25rem;margin:1rem 0;background:var(--body-background);transition:border-color .3s ease,box-shadow .3s ease,background .3s ease}.exam-question-card:hover{border-color:var(--color-link);box-shadow:0 2px 8px rgba(0,0,0,8%)}.exam-q-header{display:flex;gap:.75rem;margin-bottom:1rem;font-size:.95rem;line-height:1.6}.exam-q-number{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:2.2rem;height:2.2rem;border-radius:8px;background:var(--color-link);color:#fff;font-size:.8rem;font-weight:700}.exam-q-text{flex:1;padding-top:.15rem}.exam-q-options{display:flex;flex-direction:column;gap:.4rem;padding-left:.25rem}.exam-option{display:flex;align-items:flex-start;gap:.5rem;padding:.5rem .75rem;border-radius:8px;border:1px solid transparent;transition:all .2s ease;cursor:pointer}.exam-option:hover{background:var(--gray-100);border-color:var(--gray-200)}.exam-option-input{margin-top:.25rem;flex-shrink:0;accent-color:var(--color-link);cursor:pointer}.exam-option-label{flex:1;cursor:pointer;display:flex;gap:.4rem;font-size:.9rem;line-height:1.5;user-select:none;-webkit-user-select:none}.exam-option-key{font-weight:600;color:var(--gray-500);flex-shrink:0;min-width:1.5rem}.exam-option-text{flex:1}.exam-q-feedback{display:none;margin-top:.75rem;padding:.6rem 1rem;border-radius:8px;font-size:.85rem;font-weight:600;line-height:1.5}.exam-feedback-correct{display:block;background:rgba(39,174,96,.1);border:1px solid rgba(39,174,96,.3);color:#27ae60}.exam-feedback-incorrect{display:block;background:rgba(231,76,60,.1);border:1px solid rgba(231,76,60,.3);color:#e74c3c}.exam-feedback-unanswered{display:block;background:rgba(243,156,18,.1);border:1px solid rgba(243,156,18,.3);color:#e67e22}.exam-correct{border-color:rgba(39,174,96,.4);background:rgba(39,174,96,3%)}.exam-incorrect{border-color:rgba(231,76,60,.4);background:rgba(231,76,60,3%)}.exam-score-summary{margin:1rem 0 .5rem}.exam-score-card{border-radius:12px;padding:1.5rem;border:2px solid var(--gray-200);background:var(--body-background);animation:exam-slide-down .4s ease}@keyframes exam-slide-down{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.exam-passed{border-color:rgba(39,174,96,.5);background:rgba(39,174,96,5%)}.exam-failed{border-color:rgba(231,76,60,.5);background:rgba(231,76,60,5%)}.exam-score-pct{font-size:2.5rem;font-weight:800;line-height:1}.exam-passed .exam-score-pct{color:#27ae60}.exam-failed .exam-score-pct{color:#e74c3c}.exam-score-bar-wrapper{display:block;width:100%;height:10px;background:var(--gray-200);border-radius:999px;overflow:hidden;margin:.75rem 0}.exam-score-bar{display:block;height:100%;border-radius:999px;transition:width .6s ease;background:linear-gradient(90deg,var(--color-link),#5fa3d0)}.sidebar-progress{padding:.75rem 1rem;border-bottom:1px solid var(--gray-200);margin-bottom:.5rem}.sidebar-progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.4rem}.sidebar-progress-label{font-size:.8rem;font-weight:600;color:var(--body-font-color)}.sidebar-progress-pct{font-size:.75rem;font-weight:700;color:var(--color-link)}.sidebar-progress-track{width:100%;height:5px;background:var(--gray-200);border-radius:999px;overflow:hidden;margin-bottom:.35rem}.sidebar-progress-fill{height:100%;background:var(--color-link);border-radius:999px;transition:width .5s ease}.sidebar-progress-detail{display:flex;justify-content:space-between;font-size:.65rem;color:var(--gray-500)}.book-menu-collapse-target,.book-toc-collapse-target{display:none}.book-sidebar-toggle,.book-toc-toggle{display:none}@media screen and (min-width:calc(56rem + 1px)){.book-sidebar-toggle{display:flex;position:fixed;top:50%;left:0;z-index:100;transform:translateY(-50%);align-items:center;justify-content:center;width:22px;height:52px;cursor:pointer}.book-toc-toggle{display:flex;position:fixed;top:50%;right:0;z-index:100;transform:translateY(-50%);align-items:center;justify-content:center;width:22px;height:52px;cursor:pointer}.sidebar-toggle-label,.toc-toggle-label{display:flex;align-items:center;justify-content:center;width:100%;height:100%;background:var(--body-background);border:1px solid var(--gray-200);border-left:none;border-radius:0 8px 8px 0;cursor:pointer;transition:background .2s ease,border-color .2s ease;user-select:none;-webkit-user-select:none}.toc-toggle-label{border-left:1px solid var(--gray-200);border-right:none;border-radius:8px 0 0 8px}.sidebar-toggle-label:hover,.toc-toggle-label:hover{background:var(--gray-100);border-color:var(--gray-400)}.book-menu,.book-toc{position:relative}.book-menu{border-right:1px solid var(--gray-200)}.book-toc{border-left:1px solid var(--gray-200)}#menu-control:checked~main .book-menu{flex:0 0 12px;min-width:12px;overflow:visible;cursor:pointer}#menu-control:checked~main .book-menu .book-menu-content{transform:translateX(-100%);opacity:0;pointer-events:none}#menu-control:checked~main .book-menu .book-menu-collapse-target{display:block;position:absolute;top:0;left:0;width:100%;height:100%;cursor:pointer;z-index:10}#menu-control:checked~main .book-sidebar-toggle .sidebar-toggle-icon{transform:rotate(180deg)}#toc-control:checked~main .book-toc{flex:0 0 12px;min-width:12px;overflow:visible;cursor:pointer}#toc-control:checked~main .book-toc .book-toc-content{transform:translateX(100%);opacity:0;pointer-events:none}#toc-control:checked~main .book-toc .book-toc-collapse-target{display:block;position:absolute;top:0;left:0;width:100%;height:100%;cursor:pointer;z-index:10}#toc-control:checked~main .book-toc-toggle .toc-toggle-icon{transform:rotate(180deg)}.book-menu .book-menu-content,.book-toc .book-toc-content{transition:transform .3s ease,opacity .3s ease}.book-menu,.book-toc,.book-page{transition:flex .3s ease,max-width .3s ease,background .2s ease}}:root{--body-background:#2e3440;--body-background-tint:none;--body-font-color:#eceff4;--color-link:#81a1c1;--color-visited-link:#b48ead;--icon-filter:brightness(0) invert(1);--gray-100:#3b4252;--gray-200:#434c5e;--gray-500:#d8dee9;--color-accent-default:#81a1c1;--color-accent-default-tint:rgba(129, 161, 193, 0.1);--color-accent-note:#5e81ac;--color-accent-note-tint:rgba(94, 129, 172, 0.1);--color-accent-tip:#a3be8c;--color-accent-tip-tint:rgba(163, 190, 140, 0.1);--color-accent-important:#b48ead;--color-accent-important-tint:rgba(180, 142, 173, 0.1);--color-accent-warning:#d08770;--color-accent-warning-tint:rgba(208, 135, 112, 0.1);--color-accent-caution:#bf616a;--color-accent-caution-tint:rgba(191, 97, 106, 0.1);--color-accent-info:#5e81ac;--color-accent-info-tint:rgba(94, 129, 172, 0.1);--color-accent-success:#a3be8c;--color-accent-success-tint:rgba(163, 190, 140, 0.1);--color-accent-danger:#bf616a;--color-accent-danger-tint:rgba(191, 97, 106, 0.1)}