:root{--bg-color:#000000;--text-color:#ffffff;--sidebar-bg:#1a1a1a;--sidebar-border:#333;--sidebar-text:#ccc;--sidebar-hover-bg:#333;--link-color:#00ffff;--link-visited:#00cccc;--topbar-bg:#1a1a1a;--topbar-button-hover:#444;--separator-color:#444;--sidebar-width:320px;--topbar-height:48px;--content-max:48rem;--transition-duration:0.3s;--transition-easing:cubic-bezier(0.25,0.1,0.25,1)}html,body{margin:0;padding:0;background-color:var(--bg-color);color:var(--text-color);font-family:serif;line-height:1.6}#app-container{display:flex;height:100vh;overflow:hidden;position:relative}#sidebar-container{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100%;z-index:1200;transform:translateX(calc(-100% - 2px));transition:transform 0.26s cubic-bezier(.2,.9,.2,1);will-change:transform;overflow:hidden}@media (max-width:768px){#app-container.sidebar-open #sidebar-container{box-shadow:8px 0 30px rgba(0,0,0,0.85)}}#content-wrapper{flex-grow:1;display:flex;flex-direction:column;margin-top:var(--topbar-height);transition:margin-top var(--transition-duration) var(--transition-easing)}.is-fullscreen #content-wrapper{margin-top:0;height:100vh}#app-container.sidebar-open #sidebar-container{transform:translateX(0)}@media (min-width:768px){#app-container.sidebar-open #main-content{transform:translateX(calc(var(--sidebar-width) * 0.5))}}#main-content{overflow-y:auto;overflow-x:hidden;flex-grow:1;padding:1rem;box-sizing:border-box;-webkit-overflow-scrolling:touch;touch-action:pan-y;will-change:scroll-position,transform;transition:transform 0.26s cubic-bezier(.2,.9,.2,1);scroll-padding-top:var(--topbar-height);display:grid;grid-template-columns:1fr;justify-items:center;align-content:start;position:relative;z-index:1}@media (max-width:768px){#main-content{padding:0.5rem}}@media (max-width:480px){#main-content{padding:0.25rem}}.toc-view{overflow-y:auto}@media (max-width:768px){#main-content::-webkit-scrollbar{width:8px;height:8px}#main-content::-webkit-scrollbar-track{background:rgba(255,255,255,0.05);border-radius:4px}#main-content::-webkit-scrollbar-thumb{background-color:rgba(255,255,255,0.3);border-radius:4px;border:1px solid rgba(255,255,255,0.1);transition:background-color 0.2s ease,border-color 0.2s ease}#main-content::-webkit-scrollbar-thumb:hover{background-color:rgba(255,255,255,0.45);border-color:rgba(255,255,255,0.2)}#main-content::-webkit-scrollbar-thumb:active{background-color:rgba(255,255,255,0.5)}#main-content::-webkit-scrollbar-corner{background:transparent}#main-content{scrollbar-width:thin;scrollbar-color:rgba(255,255,255,0.3) rgba(255,255,255,0.05)}}@media (min-width:769px){#main-content::-webkit-scrollbar{width:8px;height:8px}#main-content::-webkit-scrollbar-track{background:transparent}#main-content::-webkit-scrollbar-thumb{background-color:rgba(255,255,255,0.2);border-radius:4px}#main-content::-webkit-scrollbar-thumb:hover{background-color:rgba(255,255,255,0.4)}#main-content::-webkit-scrollbar-corner{background:transparent}}.toc-view::-webkit-scrollbar{width:4px;height:4px}.toc-view::-webkit-scrollbar-track{background:transparent}.toc-view::-webkit-scrollbar-thumb{background-color:rgba(255,255,255,0.2);border-radius:2px}.toc-view::-webkit-scrollbar-thumb:hover{background-color:rgba(255,255,255,0.4)}.toc-view::-webkit-scrollbar-corner{background:transparent}.content-body{width:clamp(48rem,85vw,80rem);padding:1.5rem;font-size:clamp(1rem,1.2rem,1.5rem);word-wrap:break-word;overflow-wrap:break-word;hyphens:auto;transition:width 0.3s cubic-bezier(0.25,0.1,0.25,1),padding 0.3s cubic-bezier(0.25,0.1,0.25,1),font-size 0.3s cubic-bezier(0.25,0.1,0.25,1);justify-self:center;box-sizing:border-box}.content-body a{color:var(--link-color)}.content-body a *{color:var(--link-color)}.content-body a:visited{color:var(--link-visited)}.content-body a:visited *{color:var(--link-visited)}hr.chapter-separator{margin:3em 0;border:none;border-top:1px solid var(--separator-color)}img{max-width:100%;height:auto;display:block;margin:0 auto 1em auto}@media (max-width:480px){#main-content{padding:0.5rem}.top-toolbar{top:25px}.top-toolbar .top-left-controls{top:29px}.top-toolbar .top-right-controls{top:29px}#content-wrapper{margin-top:48px}#main-content{scroll-padding-top:50px}.content-body img.cover:first-of-type{padding-top:0}}@media (min-width:481px) and (max-width:768px){#main-content{padding:0.75rem}}@media (min-width:769px) and (max-width:1024px){#main-content{padding:1rem}}@media (min-width:1025px){#main-content{padding:1.5rem}}.content-body *{max-width:100%;box-sizing:border-box}.content-body p,.content-body div,.content-body span{word-wrap:break-word;overflow-wrap:break-word}@media (max-width:768px){.content-body{width:min(48rem,95vw);padding:0.75rem}.content-body.text-lg{width:min(42rem,93vw)}.content-body.text-xl{width:min(38rem,91vw)}.content-body.text-2xl{width:min(34rem,89vw)}.content-body.text-3xl{width:min(30rem,87vw)}.content-body.text-4xl{width:min(26rem,85vw)}.content-body.text-5xl{width:min(22rem,83vw)}}@media (max-width:480px){.content-body{width:min(48rem,94vw);padding:0.5rem}.content-body.text-lg{width:min(38rem,92vw)}.content-body.text-xl{width:min(34rem,90vw)}.content-body.text-2xl{width:min(30rem,88vw)}.content-body.text-3xl{width:min(26rem,86vw)}.content-body.text-4xl{width:min(22rem,84vw)}.content-body.text-5xl{width:min(18rem,82vw)}}@media (min-width:769px){#main-content{padding-left:clamp(1rem,3vw,3rem);padding-right:clamp(1rem,3vw,3rem)}}@media (min-width:768px) and (max-width:1199px){#app-container.sidebar-open #main-content{transform:translateX(calc(var(--sidebar-width) * 0.5))}#app-container.sidebar-open .top-toolbar .top-left-controls{transform:translateX(var(--sidebar-width))}#app-container.sidebar-open .content-body{max-width:min(var(--content-max),calc(100vw - var(--sidebar-width) - 4rem));transition:max-width 220ms cubic-bezier(.2,.9,.2,1)}}@media (min-width:1200px){:root{--content-max:clamp(48rem,85vw,80rem)}#app-container.sidebar-open #main-content{transform:translateX(calc(var(--sidebar-width) * 0.5))}#app-container.sidebar-open .top-toolbar .top-left-controls{transform:translateX(var(--sidebar-width))}#app-container.sidebar-open .content-body{max-width:min(var(--content-max),calc(100vw - var(--sidebar-width) - 4rem));transition:max-width 220ms cubic-bezier(.2,.9,.2,1)}}@media (min-width:1440px){.content-body{width:clamp(48rem,70vw,70rem)}#main-content{padding-left:clamp(0.75rem,2.5vw,2.5rem);padding-right:clamp(0.75rem,2.5vw,2.5rem)}}@media (min-width:1600px){.content-body{width:clamp(48rem,78vw,76rem)}#main-content{padding-left:clamp(1rem,3vw,3rem);padding-right:clamp(1rem,3vw,3rem)}}.toc-sidebar{width:100%;height:100%;background:var(--sidebar-bg);box-shadow:0 0 0 1px var(--sidebar-border);display:flex;flex-direction:column;font-family:sans-serif}.toc-sidebar-header{display:flex;align-items:center;padding:1rem;border-bottom:1px solid var(--sidebar-border)}.toc-sidebar-header img{width:80px;height:auto;border-radius:3px;margin-right:0.75rem;object-fit:cover}.toc-sidebar-header h1{font-size:1.1em;margin:0;color:var(--text-color);font-family:sans-serif}.toc-sidebar-header p{font-size:small;color:var(--sidebar-text);margin-top:0.2rem;font-family:sans-serif}.toc-view{padding:.5rem;overflow-y:auto;flex-grow:1}.toc-view ul{list-style:none;padding:0;margin:0}.toc-view a,.toc-view span{display:block;padding:8px 12px;text-decoration:none;color:var(--sidebar-text);border-radius:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-family:sans-serif}.toc-view a:hover{background:var(--sidebar-hover-bg)}.toc-view ul ul{padding-left:1rem}.top-toolbar{position:fixed;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;height:var(--topbar-height);padding:0 10px;background:var(--topbar-bg);backdrop-filter:blur(8px);border-bottom:1px solid var(--sidebar-border);flex-shrink:0;transition:opacity var(--transition-duration) var(--transition-easing),visibility var(--transition-duration) var(--transition-easing),transform var(--transition-duration) var(--transition-easing);will-change:opacity,transform;transform:translateZ(0);z-index:1100}@keyframes spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}.loading-spinner{animation:spin 1s linear infinite}.button-loading{pointer-events:none;opacity:0.7}.top-toolbar .top-left-controls{position:fixed;left:12px;top:4px;display:flex;gap:6px;z-index:1300;transition:transform 0.26s cubic-bezier(.2,.9,.2,1);transform:translateX(0)}.top-toolbar .top-right-controls{position:fixed;right:12px;top:4px;display:flex;gap:6px;z-index:1400}.top-toolbar.fullscreen-hidden{opacity:0!important;visibility:hidden!important;pointer-events:none!important;transition:opacity var(--transition-duration) var(--transition-easing),visibility var(--transition-duration) var(--transition-easing)}.top-toolbar div{display:flex;align-items:center}.top-toolbar button{margin:0 2px;padding:10px;border:none;background:none;border-radius:6px;cursor:pointer;color:var(--text-color);transition:background 0.2s;display:flex;align-items:center;justify-content:center}.top-toolbar button:hover{background:var(--topbar-button-hover)}.top-toolbar svg{width:22px;height:22px}.text-xs{font-size:clamp(0.6rem,0.75rem,0.9rem)}.text-sm{font-size:clamp(0.7rem,0.875rem,1.05rem)}.text-base{font-size:clamp(0.8rem,1rem,1.2rem)}.text-lg{font-size:clamp(0.9rem,1.125rem,1.35rem)}.text-xl{font-size:clamp(1rem,1.25rem,1.5rem)}.text-2xl{font-size:clamp(1.2rem,1.5rem,1.8rem)}.text-3xl{font-size:clamp(1.5rem,1.875rem,2.25rem)}.text-4xl{font-size:clamp(1.8rem,2.25rem,2.7rem)}.text-5xl{font-size:clamp(2.4rem,3rem,3.6rem)}@media (min-width:769px) and (max-width:1200px){html{font-size:16px}}@media (min-width:1025px){.content-body:not(.text-sm):not(.text-base):not(.text-lg):not(.text-xl):not(.text-2xl){font-size:clamp(1.125rem,1.5vw,1.75rem)}}@media (min-width:1600px){.content-body:not(.text-sm):not(.text-base):not(.text-lg):not(.text-xl):not(.text-2xl){font-size:clamp(1.25rem,1.75vw,2rem)}}@media (min-width:1025px){.text-sm{font-size:clamp(0.9rem,1.1vw,1.25rem)!important}.text-base{font-size:clamp(1.125rem,1.5vw,1.75rem)!important}.text-lg{font-size:clamp(1.3rem,1.75vw,2rem)!important}.text-xl{font-size:clamp(1.5rem,2vw,2.25rem)!important}.text-2xl{font-size:clamp(1.75rem,2.5vw,2.75rem)!important}}.image-modal{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,0.9);z-index:2000;display:none;align-items:center;justify-content:center;padding:10px;box-sizing:border-box;cursor:pointer}.image-modal.active{display:flex}.image-modal-content{position:relative;max-width:90%;max-height:calc(90% - 60px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;cursor:default}.image-modal img{max-width:100%;max-height:calc(100% - 60px);object-fit:contain;touch-action:pinch-zoom;user-select:none;-webkit-user-drag:none}.image-modal-close{position:fixed!important;bottom:20px!important;left:50%!important;transform:translateX(-50%)!important;background:rgba(0,0,0,0.8)!important;border:1px solid rgba(255,255,255,0.4)!important;color:white!important;padding:10px 20px!important;border-radius:25px!important;cursor:pointer!important;font-size:16px!important;font-weight:bold!important;transition:background-color 0.2s ease!important;backdrop-filter:blur(8px)!important;z-index:3000!important;pointer-events:auto!important;display:block!important}.image-modal-close:hover{background:rgba(0,0,0,0.9)!important;border-color:rgba(255,255,255,0.6)!important}.image-modal-close:active{background:rgba(0,0,0,1)!important}@media (max-width:768px){.content-body img{cursor:pointer;transition:opacity 0.2s ease}.content-body img:hover{opacity:0.9}}@media (min-width:769px){.image-modal{display:none!important}.content-body img{cursor:default}}@media (max-width:768px){.toc-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:transparent;display:none;z-index:1000;pointer-events:none}.toc-overlay.active{display:block;pointer-events:auto}}@media (min-width:769px){.toc-overlay{display:none!important;pointer-events:none!important}}