:root{--color-bg: #121417;--color-bg-elevated: #171A1F;--color-bg-muted: #1E2125;--color-bg-code: #171A1F;--color-text: #f1f5f9;--color-text-secondary: #a0aab4;--color-text-muted: #6b7785;--color-primary: #FF456F;--color-primary-hover: #ff6b8a;--color-primary-subtle: rgba(255, 69, 111, .1);--color-secondary: #AB72DD;--color-accent: #AB72DD;--color-success: #34d399;--color-warning: #fbbf24;--color-border: #2a2d33;--color-border-subtle: #1E2125;--gradient-primary: linear-gradient(135deg, #FF456F, #AB72DD);--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .4), 0 2px 4px -2px rgb(0 0 0 / .3);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .4), 0 4px 6px -4px rgb(0 0 0 / .3);--shadow-glow: 0px 0px 12px rgba(91, 64, 149, .5);--sidebar-width: 280px;--content-max-width: 860px;--header-height: 64px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--transition-fast: .15s ease;--transition-normal: .25s ease}[data-theme=light]{--color-bg: #ffffff;--color-bg-elevated: #f8fafc;--color-bg-muted: #f1f5f9;--color-bg-code: #f8fafc;--color-text: #0f172a;--color-text-secondary: #475569;--color-text-muted: #64748b;--color-primary: #FF456F;--color-primary-hover: #e03a60;--color-primary-subtle: rgba(255, 69, 111, .08);--color-secondary: #AB72DD;--color-accent: #8b5cf6;--color-success: #10b981;--color-warning: #f59e0b;--color-border: #e2e8f0;--color-border-subtle: #f1f5f9;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-glow: 0px 0px 12px rgba(171, 114, 221, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Poppins,-apple-system,BlinkMacSystemFont,Segoe 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var(--transition-normal)}[data-theme=light] .sidebar-logo{filter:invert(1) brightness(.2)}.sidebar-title{font-size:.75rem;font-weight:600;color:var(--color-text-muted);text-decoration:none;display:block;line-height:1.4;letter-spacing:.04em;text-transform:uppercase;transition:color var(--transition-fast)}.sidebar-title:hover{color:var(--color-primary)}.sidebar-actions{display:flex;align-items:center;gap:.5rem}.mobile-menu-toggle{display:none;background:var(--color-bg-muted);border:1px solid var(--color-border);border-radius:var(--radius-sm);width:36px;height:36px;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.mobile-menu-toggle:hover{background:var(--color-primary-subtle);border-color:var(--color-primary)}.mobile-menu-toggle svg{color:var(--color-text-secondary);transition:color var(--transition-fast)}.mobile-menu-toggle:hover svg{color:var(--color-primary)}.mobile-menu-toggle .close-icon,.sidebar.nav-open 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0;transform:rotate(45deg)}.table-wrapper{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1.5rem 0}table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.9rem;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--color-border)}th,td{padding:.875rem 1rem;text-align:left;border-bottom:1px solid var(--color-border)}th{background:var(--color-bg-elevated);font-weight:600;color:var(--color-text);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}td{color:var(--color-text-secondary)}tr:last-child td{border-bottom:none}tr:nth-child(2n) td{background:var(--color-bg-muted)}tr:hover td{background:var(--color-primary-subtle)}code{font-family:JetBrains Mono,SF Mono,Monaco,Consolas,monospace;font-size:.85em;background:var(--color-bg-muted);padding:.2em .4em;border-radius:4px;color:var(--color-accent);border:1px solid var(--color-border-subtle)}pre{background:var(--color-bg-elevated);padding:1.25rem 1.5rem;border-radius:var(--radius-md);overflow-x:auto;margin:1.5rem 0;border:1px solid var(--color-border);box-shadow:var(--shadow-sm)}pre code{background:none;padding:0;font-size:.85rem;line-height:1.7;color:var(--color-text-secondary);border:none}blockquote{border-left:4px solid var(--color-primary);padding:1.25rem 1.5rem;margin:1.5rem 0;background:var(--color-primary-subtle);border-radius:0 var(--radius-md) var(--radius-md) 0}blockquote p{color:var(--color-text);font-style:italic}blockquote p:last-child{margin-bottom:0}hr{border:none;border-top:1px solid var(--color-border);margin:3rem 0}.mermaid-diagram{margin:2rem 0;padding:2rem;background:var(--color-bg-elevated);border-radius:var(--radius-lg);border:1px solid var(--color-border);overflow-x:auto;box-shadow:var(--shadow-sm);transition:background-color var(--transition-normal),border-color var(--transition-normal)}.mermaid-diagram svg{max-width:100%;height:auto;display:block;margin:0 auto}.mermaid-error{color:var(--color-warning);font-size:.85rem}.doc-navigation{display:flex;justify-content:space-between;gap:1.5rem;margin-top:4rem;padding-top:2rem;border-top:1px solid var(--color-border)}.doc-nav-link{display:flex;flex-direction:column;gap:.375rem;padding:1.25rem 1.5rem;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);text-decoration:none;transition:all var(--transition-fast);max-width:45%;box-shadow:var(--shadow-sm)}.doc-nav-link:hover{border-color:var(--color-primary);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-glow)}.doc-nav-link.prev{align-items:flex-start}.doc-nav-link.next{align-items:flex-end;margin-left:auto}.doc-nav-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;font-weight:600;color:var(--color-text-muted)}.doc-nav-title{font-weight:600;color:var(--color-primary);font-size:.95rem}.home-hero{text-align:center;padding:4rem 2rem;margin-bottom:4rem;border-bottom:1px solid var(--color-border);background:radial-gradient(ellipse at 20% 50%,rgba(255,69,111,.08) 0%,transparent 50%),radial-gradient(ellipse at 80% 50%,rgba(171,114,221,.08) 0%,transparent 50%),var(--color-bg-elevated);border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-sm)}[data-theme=light] .home-hero{background:radial-gradient(ellipse at 20% 50%,rgba(255,69,111,.05) 0%,transparent 50%),radial-gradient(ellipse at 80% 50%,rgba(171,114,221,.05) 0%,transparent 50%),var(--color-bg-elevated)}.home-hero h1{border:none;font-size:2.75rem;margin-bottom:1rem;padding-bottom:0}.home-hero p{font-size:1.25rem;color:var(--color-text-secondary);max-width:640px;margin:0 auto;line-height:1.7}.home-section{margin-bottom:4rem}.home-section h2{margin-top:0;margin-bottom:1.5rem}.parts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-top:1.5rem}.part-card{background:var(--color-bg-elevated);border-radius:var(--radius-md);padding:1.5rem;border:1px solid var(--color-border);transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.part-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-glow);transform:translateY(-2px)}.part-card h3{margin-top:0;margin-bottom:1rem;font-size:1rem;color:var(--color-text);display:flex;align-items:center;gap:.5rem}.part-card h3:before{content:"";width:4px;height:1em;background:var(--gradient-primary);border-radius:2px}.part-card ul{list-style:none;padding:0;margin:0}.part-card li{margin-bottom:.5rem;padding-left:0}.part-card a{color:var(--color-text-secondary);font-size:.9rem;font-weight:500;display:block;padding:.375rem 0;transition:all var(--transition-fast)}.part-card a:hover{color:var(--color-primary);text-decoration:none;padding-left:.5rem}.quick-ref-table{margin-top:1.5rem}.start-button{display:inline-flex;align-items:center;gap:.625rem;padding:.875rem 2rem;background:var(--gradient-primary);color:#fff;border-radius:999px;font-weight:600;font-size:1rem;margin-top:1.5rem;transition:all var(--transition-fast);box-shadow:var(--shadow-md)}.start-button:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-glow);color:#fff;filter:brightness(1.1)}.start-button svg{transition:transform var(--transition-fast)}.start-button:hover svg{transform:translate(4px)}.error-page{text-align:center;padding:4rem 2rem}.error-page h1{font-size:6rem;border:none;margin-bottom:1rem}.about-section{border-top:1px solid var(--color-border);padding-top:3rem}.about-grid{display:flex;gap:2.5rem;align-items:flex-start;margin-top:1.5rem}.about-figure{flex-shrink:0;text-align:center}.about-image{width:220px;border-radius:var(--radius-md);border:1px solid var(--color-border);box-shadow:var(--shadow-md)}.about-figure figcaption{font-size:.8rem;color:var(--color-text-muted);margin-top:.75rem;font-style:italic}.about-text p{color:var(--color-text-secondary)}.about-text p:last-child{margin-bottom:0}@media (max-width: 900px){.about-grid{flex-direction:column;align-items:center;text-align:center}.about-image{width:180px}}.reading-progress{position:fixed;top:0;left:0;width:0%;height:3px;background:var(--gradient-primary);z-index:200;transition:width 50ms linear}.site-footer{border-top:1px solid var(--color-border);padding:2rem 4rem;margin-left:var(--sidebar-width);display:flex;align-items:center;justify-content:center;gap:1rem;background:var(--color-bg-elevated)}.footer-inner{max-width:var(--content-max-width);width:100%;display:flex;align-items:center;justify-content:space-between}.footer-brand{display:flex;align-items:center;gap:.75rem;text-decoration:none}.footer-logo{height:18px;width:auto;transition:filter var(--transition-normal)}[data-theme=light] .footer-logo{filter:invert(1) brightness(.2)}.footer-text{font-size:.8rem;color:var(--color-text-muted)}.footer-text a{color:var(--color-text-secondary);font-weight:500}.footer-text a:hover{color:var(--color-primary)}@media (max-width: 1100px){.main-content{padding:2rem 3rem}.home-hero{padding:3rem 2rem}}@media (max-width: 900px){.sidebar{position:sticky;top:0;width:100%;border-right:none;border-bottom:1px solid var(--color-border);padding:1rem 1.5rem;z-index:100;background:var(--color-bg-elevated)}.sidebar-nav{display:none;padding-top:1.25rem;padding-bottom:.5rem;border-top:1px solid var(--color-border);margin-top:1.25rem;max-height:70vh;overflow-y:auto}.sidebar.nav-open .sidebar-nav,.mobile-menu-toggle{display:flex}.sidebar-header{margin-bottom:0;padding-bottom:0;border-bottom:none}.main-content{margin-left:0;padding:2rem 1.5rem}.site-layout{flex-direction:column}.site-footer{margin-left:0;flex-direction:column;text-align:center;padding:1.5rem}.doc-navigation{flex-direction:column;gap:1rem}.doc-nav-link{max-width:100%}.doc-nav-link.next{align-items:flex-start}.home-hero{padding:2rem 1.5rem;border-radius:var(--radius-md)}.home-hero h1{font-size:2rem}.home-hero p{font-size:1.1rem}table{font-size:.8rem;min-width:480px}th,td{padding:.625rem .75rem}}@media print{.sidebar{display:none}.main-content{margin-left:0;padding:0}.theme-toggle,.doc-navigation{display:none}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-gradient{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}