:root{--bg-color: hsl(222, 47%, 7%);--panel-bg: hsl(222, 47%, 10%);--sidebar-bg: hsl(222, 47%, 5%);--primary: hsl(250, 89%, 65%);--primary-hover: hsl(250, 89%, 72%);--primary-glow: hsla(250, 89%, 65%, .15);--text: hsl(210, 40%, 98%);--text-muted: hsl(215, 20%, 65%);--border: hsl(217, 32%, 15%);--border-focus: hsl(217, 32%, 25%);--code-bg: hsl(222, 47%, 4%);--font-heading: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "Fira Code", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--header-height: 70px;--sidebar-width: 280px;--max-content-width: 860px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text);font-family:var(--font-body);line-height:1.6;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--sidebar-bg)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-focus)}.app-container{display:grid;grid-template-rows:var(--header-height) 1fr;min-height:100vh}header{grid-row:1;position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0 2rem;background-color:#090e1acc;backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.logo-container a{display:flex;align-items:center;gap:.75rem;text-decoration:none;color:var(--text)}.logo-text{font-family:var(--font-heading);font-weight:700;font-size:1.25rem;letter-spacing:-.02em;background:linear-gradient(135deg,var(--text) 30%,var(--primary-hover) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.header-links{display:flex;align-items:center;gap:1.5rem}.github-link{display:flex;align-items:center;gap:.5rem;color:var(--text-muted);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .2s ease}.github-link:hover{color:var(--text)}.main-layout{grid-row:2;display:flex;width:100%}.sidebar{width:var(--sidebar-width);background-color:var(--sidebar-bg);border-right:1px solid var(--border);padding:2.5rem 1.5rem;position:sticky;top:var(--header-height);height:calc(100vh - var(--header-height));overflow-y:auto}.sidebar-section-title{font-family:var(--font-heading);font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:1rem;font-weight:600}.sidebar-nav{list-style:none;display:flex;flex-direction:column;gap:.5rem}.sidebar-nav a{display:block;padding:.6rem 1rem;border-radius:8px;color:var(--text-muted);text-decoration:none;font-size:.95rem;font-weight:500;transition:all .2s cubic-bezier(.16,1,.3,1)}.sidebar-nav a:hover{color:var(--text);background-color:var(--panel-bg)}.sidebar-nav a.active{color:var(--text);background-color:var(--primary-glow);border-left:3px solid var(--primary);padding-left:calc(1rem - 3px)}.content-area{flex:1;padding:3rem 4rem;overflow-y:auto;display:flex;justify-content:center}.content-wrapper{width:100%;max-width:var(--max-content-width)}.markdown-body h1{font-family:var(--font-heading);font-size:2.5rem;font-weight:800;letter-spacing:-.03em;margin-bottom:1.5rem;line-height:1.15;background:linear-gradient(135deg,var(--text) 40%,hsla(210,40%,98%,.7) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.markdown-body h2{font-family:var(--font-heading);font-size:1.6rem;font-weight:700;letter-spacing:-.02em;margin-top:2.5rem;margin-bottom:1.2rem;border-bottom:1px solid var(--border);padding-bottom:.5rem;color:var(--text)}.markdown-body h3{font-family:var(--font-heading);font-size:1.25rem;font-weight:600;margin-top:2rem;margin-bottom:.8rem}.markdown-body p{font-size:1.05rem;color:var(--text-muted);margin-bottom:1.5rem;line-height:1.7}.markdown-body p strong{color:var(--text)}.markdown-body pre{background-color:var(--code-bg)!important;border:1px solid var(--border);border-radius:12px;padding:1.25rem;margin-bottom:1.75rem;overflow-x:auto;font-family:var(--font-mono);font-size:.9rem}.markdown-body code:not(pre code){font-family:var(--font-mono);background-color:var(--panel-bg);border:1px solid var(--border);color:var(--primary-hover);padding:.2rem .4rem;border-radius:6px;font-size:.875em}.markdown-body table{width:100%;border-collapse:collapse;margin-bottom:1.75rem;font-size:.95rem}.markdown-body th,.markdown-body td{border:1px solid var(--border);padding:.75rem 1rem;text-align:left}.markdown-body th{background-color:var(--panel-bg);font-family:var(--font-heading);font-weight:600}.markdown-body tr:nth-child(2n){background-color:#0e152566}.markdown-body blockquote{border-left:4px solid var(--primary);padding:.5rem 1.5rem;margin-bottom:1.75rem;background-color:#7156f50d;border-radius:0 8px 8px 0}.markdown-body blockquote p{margin-bottom:0;color:var(--text);font-size:1.02rem}.markdown-body a{color:var(--primary-hover);text-decoration:none;transition:border-bottom .15s ease;border-bottom:1px solid transparent}.markdown-body a:hover{border-bottom:1px solid var(--primary-hover)}.markdown-body ul,.markdown-body ol{margin-left:2rem;margin-bottom:1.5rem;color:var(--text-muted)}.markdown-body li{margin-bottom:.5rem}.mobile-menu-btn{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}@media (max-width: 768px){.mobile-menu-btn{display:block}.header-links{display:none}.main-layout{flex-direction:column}.sidebar{width:100%;height:auto;position:relative;top:0;border-right:none;border-bottom:1px solid var(--border);padding:1.5rem}.content-area{padding:2rem 1.5rem}}