:root{--font-main:"Courier New", Courier, monospace;--color-text:#000;--color-bg:#fff;--color-border:#000;--color-highlight:#ff0;--spacing-unit:1.5rem}*{box-sizing:border-box}body{font-family:var(--font-main);background-color:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:subpixel-antialiased;-moz-osx-font-smoothing:auto;margin:0;padding:0;line-height:1.6}a{color:var(--color-text);text-decoration:underline}a:hover{background-color:var(--color-highlight);text-decoration:none}.layout{border-left:1px solid var(--color-border);border-right:1px solid var(--color-border);grid-template-columns:1fr;max-width:1400px;min-height:100vh;margin:0 auto;display:grid}.sidebar{padding:var(--spacing-unit);border-bottom:1px solid var(--color-border)}.profile-img{width:100px;height:100px;margin-bottom:var(--spacing-unit);border:1px solid var(--color-border);object-fit:cover;background-color:#ddd;border-radius:50%}.nav-list{padding:0;list-style:none}.nav-list li{margin-bottom:.5rem}.main-content,.header-content{padding:var(--spacing-unit)}.post-item{margin-bottom:2rem}.post-date{color:#555;margin-bottom:.25rem;font-size:.85rem;display:block}.post-title{margin:0;font-size:1.2rem;font-weight:700}.markdown-body{overflow-wrap:break-word;line-height:1.7}@media (width>=768px){.layout{grid-template-columns:300px 1fr}.sidebar{border-bottom:none;border-right:1px solid var(--color-border);height:100vh;position:sticky;top:0;overflow-y:auto}}.toggle-container{align-items:center;gap:.75rem;display:flex}.toggle-label{font-size:.9rem;font-weight:700}.switch{width:46px;height:24px;display:inline-block;position:relative}.switch input{opacity:0;width:0;height:0}.slider{cursor:pointer;background-color:var(--color-bg);border:2px solid var(--color-border);transition:all .3s;position:absolute;inset:0}.slider:before{content:"";background-color:var(--color-text);width:14px;height:14px;transition:all .3s;position:absolute;bottom:3px;left:3px}input:checked+.slider{background-color:var(--color-text)}input:checked+.slider:before{background-color:var(--color-bg);transform:translate(22px)}.slider.round{border-radius:24px}.slider.round:before{border-radius:50%}.pdf-viewer{border:1px solid var(--color-border);width:100%;height:80vh;margin-top:1rem}.github-link{transition:opacity .2s}.github-link:hover{opacity:.6}