:root{--black: #000000;--off: #0f0f0f;--surface: #1a1a1a;--card: #222222;--hover: #2a2a2a;--line: #333333;--line2: #444444;--muted: #666666;--soft: #999999;--body: #d4d4d4;--head: #f0f0f0;--white: #ffffff;--primary-color: #ffffff;--primary-hover: #e5e5e5;--accent-color: #ffffff;--accent-hover: #d4d4d4;--accent-light: #f0f0f0;--accent-glow: transparent;--accent-subtle: rgba(255, 255, 255, .08);--background-color: #000000;--bg-primary: #000000;--bg-secondary: #0f0f0f;--bg-tertiary: #1a1a1a;--bg-elevated: #222222;--bg-hover: #2a2a2a;--card-bg: #1a1a1a;--sidebar-bg: #0f0f0f;--text-color: #d4d4d4;--text-primary: #f0f0f0;--text-secondary: #d4d4d4;--text-muted: #999999;--border-color: #333333;--border-thick: 1px solid #444444;--border-hover: #555555;--shadow-sm: none;--shadow: none;--shadow-md: none;--shadow-lg: none;--glass-border: rgba(255, 255, 255, .1);--glow: none;--success: #999999;--error: #d4d4d4;--font-family-base: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-family-heading: "JetBrains Mono", "Courier New", monospace;--font-display: "JetBrains Mono", "Courier New", monospace;--font-body: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--transition-speed: .2s;--transition-smooth: .3s cubic-bezier(.4, 0, .2, 1);--fast: .2s cubic-bezier(.4, 0, .2, 1);--slow: .5s cubic-bezier(.4, 0, .2, 1);--border-radius: 4px;--radius: 4px;--radius-lg: 8px;--sidebar-width: 280px;--sidebar-collapsed: 70px;--app-width: 100%;--app-height: 100vh;--space-xs: .375rem;--space-sm: .75rem;--space-md: 1.25rem;--space-lg: 2.5rem;--space-xl: 5rem}*{margin:0;padding:0;box-sizing:border-box}*,*:before,*:after{transition-timing-function:cubic-bezier(.4,0,.2,1)}html{scroll-behavior:smooth;overflow-x:hidden;width:100%}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}body{font-family:var(--font-family-base);background-color:var(--background-color);color:var(--text-color);line-height:1.6;min-height:100vh;width:100%;max-width:100vw;margin:0;padding:0;overflow-x:hidden;position:relative;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body:before{content:"";position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' /%3E%3C/svg%3E");opacity:.03;mix-blend-mode:overlay;pointer-events:none;z-index:9999}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-secondary);border-left:1px solid var(--line)}::-webkit-scrollbar-thumb{background:var(--soft);border:2px solid var(--bg-primary);border-radius:2px}::-webkit-scrollbar-thumb:hover{background:var(--body)}.app-container{display:flex;min-height:var(--app-height);width:var(--app-width);position:relative;overflow:hidden}.manikant-bg-shape{display:none}.sidebar.closed{width:var(--sidebar-collapsed)}.sidebar-toggle{position:fixed;left:1.25rem;top:1.25rem;width:44px;height:44px;background-color:var(--bg-secondary);border:2px solid var(--text-primary);border-radius:var(--radius);display:none;align-items:center;justify-content:center;cursor:pointer;color:var(--text-primary);transition:all .3s cubic-bezier(.4,0,.2,1);z-index:1002;box-shadow:4px 4px 0 0 var(--text-primary);font-size:1.5rem;font-family:var(--font-display);font-weight:900}.sidebar-toggle:hover{background-color:var(--text-primary);color:var(--bg-primary);transform:translate(-2px,-2px);box-shadow:6px 6px 0 0 var(--text-primary)}.sidebar-toggle:active{transform:translate(0);box-shadow:2px 2px 0 0 var(--text-primary)}.sidebar-content{padding:20px;width:100%;height:100%;display:flex;flex-direction:column;gap:24px}.logo{margin-bottom:24px;text-align:center;position:relative;padding:18px 0;border-bottom:1px solid var(--line);background:transparent}.logo h1{font-family:var(--font-display);font-size:1.6rem;font-weight:700;color:var(--text-primary);margin-bottom:0;line-height:1.2;letter-spacing:-.02em;text-transform:uppercase;display:flex;align-items:center;justify-content:center;transition:transform var(--fast);text-shadow:none}.logo h1:hover{transform:none;text-shadow:none}.logo h2{font-family:var(--font-display);font-size:1.1rem;font-weight:500;color:var(--text-secondary);opacity:.9;letter-spacing:.5px}.sidebar.closed .logo h1{font-size:1.2rem}.sidebar.closed .logo h2,.sidebar.closed .label{display:none}.spider-web-logo{color:red;margin-left:5px}.spider-web-corner{color:var(--primary-color);opacity:.3;transition:opacity .3s ease}.spider-web-corner:hover{opacity:.5}.sidebar,.main-content,.content-body,.standard-sheet-section,.two-n-t-section,.custom-order-section,.pdf-store-section,.config-wrapper{position:relative}.tab-selector{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:20px}.tab-button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:14px 12px;text-align:center;position:relative;background:var(--card-bg);border:1px solid var(--line);transition:all var(--fast);overflow:hidden;cursor:pointer;font-family:var(--font-display);text-transform:uppercase;letter-spacing:.05em;font-weight:700;border-radius:var(--radius)}.tab-button:before{content:"";position:absolute;inset:0;background:var(--primary-color);opacity:0;transition:opacity var(--fast);z-index:-1}.tab-button .icon{font-size:26px;margin-bottom:4px;transition:transform var(--fast);filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.tab-button .label{font-size:.875rem;font-weight:700;transition:color var(--fast);letter-spacing:.05em;line-height:1.2}.tab-button:hover{background-color:var(--hover);color:var(--white);transform:none;box-shadow:none;border-color:var(--line2)}.tab-button:hover .icon{transform:none}.tab-button:hover:before{opacity:.1}.tab-button:active{transform:none;box-shadow:none}.tab-button.active{background:var(--white);border-color:var(--white);color:var(--black);box-shadow:none;transform:none;position:relative}.tab-button.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--white)}.tab-button.active:before{opacity:1}.tab-button.active .icon{transform:none;filter:none}.tab-button.active .label{color:var(--black)}@media (max-width: 1024px){.tab-button{padding:14px;gap:6px}.tab-button .icon{font-size:22px}.tab-button .label{font-size:.9rem}}@media (max-width: 768px){.tab-button{padding:12px;gap:6px}.tab-button .icon{font-size:20px;margin-bottom:4px}.tab-button 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h2:before{content:"";width:4px;height:28px;background:var(--white);display:inline-block;box-shadow:none}.operation-description{color:var(--text-muted);font-size:.9rem;margin-top:8px;max-width:550px;margin-left:auto;margin-right:auto;line-height:1.5}.content-body{margin-top:16px;border-radius:var(--radius-lg);box-shadow:none;padding:var(--space-md);background:var(--bg-primary);border:1px solid var(--line)}.standard-sheet-section,.two-n-t-section{background-color:var(--card-bg);border-radius:var(--radius);padding:var(--space-md);box-shadow:none;position:relative;overflow:auto;border:1px solid var(--line);backdrop-filter:none;min-height:calc(100vh - 150px);width:100%;display:flex;flex-direction:column;gap:var(--space-md)}.standard-sheet-section:before,.two-n-t-section:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--line);z-index:2;box-shadow:none}.standard-sheet-section canvas,.two-n-t-section canvas{position:relative;z-index:2;border:1px solid var(--line);box-shadow:none;transition:none;border-radius:2px}.standard-sheet-section canvas:hover,.two-n-t-section canvas:hover{transform:none;box-shadow:none}.config-wrapper{padding:var(--space-md);margin-top:12px;background-color:var(--card-bg);border:var(--border-thick);border-radius:var(--radius);box-shadow:var(--shadow-md);backdrop-filter:none;transition:all .3s ease}.config-wrapper:hover{box-shadow:var(--shadow-lg);border-color:var(--line2)}.config-section-title{font-family:var(--font-display);font-size:1.3rem;margin-bottom:16px;color:var(--white);text-align:center;position:relative;padding-bottom:10px;text-transform:uppercase;letter-spacing:.05em;font-weight:700;text-shadow:none}.config-section-title:after{content:"";position:absolute;bottom:0;left:25%;width:50%;height:2px;background:var(--line);box-shadow:none}@media screen and (max-width: 1024px){:root{--sidebar-width: 250px;--sidebar-collapsed: 60px}}@media screen and (min-width: 769px){:root{--sidebar-width: 280px;--sidebar-collapsed: 70px}.subjects-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.app-container{flex-direction:row}.sidebar{position:fixed;width:var(--sidebar-width);height:100vh;min-height:100vh}.main-content{margin-left:var(--sidebar-width);width:calc(100% - var(--sidebar-width));padding:24px}.sidebar.closed+.main-content{margin-left:var(--sidebar-collapsed);width:calc(100% - var(--sidebar-collapsed))}}@media screen and (max-width: 768px){:root{--sidebar-width: 280px;--sidebar-collapsed: 0px;--app-width: 100vw;--app-height: 100vh}.app-container{flex-direction:row}.sidebar{width:var(--sidebar-width);transform:translate(0);transition:transform .3s ease;z-index:1000;height:100vh;position:fixed;left:0;top:0}.sidebar.closed{transform:translate(-100%)}.sidebar-toggle{display:flex!important;left:.75rem;top:.75rem;background-color:var(--bg-secondary);color:var(--text-primary);box-shadow:3px 3px 0 0 var(--text-primary)}.main-content{margin-left:0;width:100%;padding:15px;min-height:100vh}.content-header h2{font-size:1.5rem}.content-body{padding:15px}body:before{opacity:.8}}@media screen and (max-width: 480px){.content-body{padding:12px;background-color:var(--card-bg)}.content-header{margin-bottom:16px}}@media (prefers-color-scheme: dark){:root{--border-color: #1e2235;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .3), 0 2px 4px -1px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .3), 0 4px 6px -2px rgba(0, 0, 0, .2)}}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--white);outline-offset:2px;box-shadow:none}@media (hover: none) and (pointer: coarse){button,a,.tab-button,input[type=button],input[type=submit]{min-height:48px;min-width:48px;padding:12px 16px}}.skip-to-main{position:absolute;top:-40px;left:0;background:var(--white);color:var(--black);padding:8px 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var(--line);overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;backdrop-filter:none;box-shadow:none}.app-container{display:flex;min-height:var(--app-height);width:var(--app-width);position:relative;overflow:hidden;flex-direction:row}.back-home-floating-btn{position:fixed;top:16px;left:16px;z-index:9999;display:flex;align-items:center;gap:10px;padding:12px 18px;background:var(--bg-secondary);backdrop-filter:none;-webkit-backdrop-filter:blur(12px);border:var(--border-thick);border-radius:var(--radius);text-decoration:none;font-family:var(--font-display);font-size:.875rem;font-weight:700;color:var(--text-primary);cursor:pointer;transition:all var(--fast);text-transform:uppercase;letter-spacing:.05em;box-shadow:var(--shadow-md)}.back-home-floating-btn .btn-icon{font-size:1.3rem;transition:transform var(--fast);filter:drop-shadow(0 2px 4px rgba(0,0,0,.3))}.back-home-floating-btn .btn-text{opacity:1}.back-home-floating-btn 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#f0f0f0);position:relative;width:100%;max-width:100vw;margin:0;padding:0;box-sizing:border-box;display:flex;flex-direction:row;overflow:hidden}.app-main-wrapper{flex:1;display:flex;flex-direction:column;height:100vh;overflow-y:auto;overflow-x:hidden;position:relative;transition:margin-left .3s cubic-bezier(.4,0,.2,1);scroll-behavior:smooth}.sidebar-overlay{display:none}@media (max-width: 768px){.sidebar-overlay{display:block;position:fixed;inset:0;background:#000000bf;z-index:1500;backdrop-filter:blur(6px);animation:fadeIn .3s ease}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (min-width: 769px){.app-main-wrapper{margin-left:var(--sidebar-width)}.sidebar.closed+.app-main-wrapper{margin-left:var(--sidebar-collapsed)}.sidebar-overlay{display:none!important}}.home-hero{padding:1rem 2rem .85rem;text-align:center;border-bottom:2px solid var(--text-primary);background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-primary) 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.5rem;line-height:1.4}}.home-hero-stats{display:flex;justify-content:center;gap:.5rem;flex-wrap:wrap;margin-top:.5rem;animation:fadeInUp .6s ease-out .3s both}@media (min-width: 769px){.home-hero-stats{gap:.6rem;margin-top:.6rem}}.home-stat{display:flex;flex-direction:column;align-items:center;padding:.35rem .55rem;border:2px solid var(--text-primary, #f8fafc);background:var(--bg-tertiary, #1a1a1a);min-width:58px;flex:1 1 auto;max-width:80px;transition:all .3s cubic-bezier(.4,0,.2,1);cursor:default;position:relative;overflow:hidden}.home-stat:before{content:"";position:absolute;inset:0;background:var(--text-primary);opacity:0;transition:opacity .3s ease;z-index:0}.home-stat:hover:before{opacity:.1}.home-stat:hover{transform:translateY(-2px);box-shadow:0 3px 6px #0000004d}.home-stat>*{position:relative;z-index:1}@media (min-width: 769px){.home-stat{padding:.35rem .6rem;min-width:62px;max-width:85px}}.home-stat-number{font-family:var(--font-display, "JetBrains Mono", monospace);font-size:clamp(1.05rem,2vw,1.2rem);font-weight:900;color:var(--text-primary, #f8fafc);line-height:1;transition:transform .3s ease}.home-stat:hover .home-stat-number{transform:scale(1.06)}@media (min-width: 769px){.home-stat-number{font-size:clamp(1.1rem,2vw,1.25rem)}}.home-stat-label{font-size:clamp(.5rem,1vw,.6rem);text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted, #999999);margin-top:.15rem;font-weight:600;transition:color .3s ease}.home-stat:hover .home-stat-label{color:var(--text-secondary)}.sidebar{background:var(--bg-secondary, #0f0f0f);border-right:2px solid var(--text-primary, #f8fafc);display:flex;flex-direction:column;padding:0;overflow-y:auto;overflow-x:hidden;position:fixed;left:0;top:0;height:100vh;width:var(--sidebar-width);z-index:100;transition:transform .3s cubic-bezier(.4,0,.2,1);box-shadow:4px 0 12px #0000004d}@media (min-width: 769px){.sidebar{transform:translate(0)!important;box-shadow:none}}.sidebar-toggle-container{padding:1rem;display:flex;justify-content:flex-end;border-bottom:1px solid var(--line, #333)}.sidebar-toggle-btn{background:transparent;border:none;color:var(--text-primary);font-size:1.5rem;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.sidebar-toggle-btn:hover{color:var(--white);transform:scale(1.1)}.logo-container{padding:2.5rem 1.5rem;text-align:center;border-bottom:3px solid var(--text-primary);background:var(--bg-secondary);transition:background .3s ease}.logo-container:hover{background:var(--bg-tertiary)}.sidebar-nav-item{display:flex;align-items:center;gap:12px;padding:1rem 1.5rem;color:var(--text-primary);text-decoration:none;font-family:var(--font-display);font-weight:700;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--line);transition:all .3s 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#fff3;transform:translate(0)}.tab-button.active:before{width:100%}.tab-button .icon{font-size:1.75rem;flex-shrink:0}.tab-button .label{font-family:var(--font-display);font-weight:800;text-transform:uppercase;font-size:.85rem;letter-spacing:.05em;line-height:1.2}.tab-button:after{content:"→";position:absolute;right:1rem;font-weight:900;opacity:0;transition:all .2s ease}.tab-button:hover:after{opacity:1}.tab-button.active:after{opacity:0}.main-content{background:var(--bg-primary, #000000);min-height:auto;flex:1;padding:2.5rem;width:100%;max-width:100%;margin:0}@media (min-width: 769px){.main-content{max-width:1600px;margin:0 auto;padding:3rem 2.5rem}}@media (min-width: 1400px){.main-content{padding:3.5rem 3rem}}.content-header{margin-bottom:2.5rem;padding:2rem;background:var(--bg-secondary);border:3px solid var(--text-primary);position:relative;transition:all .3s ease}.content-header:hover{border-color:var(--text-primary);box-shadow:0 4px 16px #0003}@media (min-width: 769px){.content-header{margin-bottom:3rem;padding:2.5rem 3rem;border:4px solid var(--text-primary)}}.content-header h2{font-family:var(--font-display);font-size:clamp(1.5rem,4vw,2.5rem);font-weight:900;text-transform:uppercase;margin:0;display:flex;align-items:center;gap:1.25rem;color:var(--text-primary);transition:transform .3s ease}.content-header:hover h2{transform:translate(4px)}.content-header:after{content:"";position:absolute;bottom:-12px;right:-12px;width:100%;height:100%;border:4px solid var(--text-primary);z-index:-1;pointer-events:none}.config-wrapper{padding:1.5rem;background:var(--bg-tertiary, #1a1a1a);border:3px solid var(--text-primary);margin-top:1rem;position:relative;overflow:hidden;transition:all .3s ease}.config-wrapper:hover{border-color:var(--text-primary);box-shadow:0 4px 12px #0003}.config-section-title{font-family:var(--font-display, "JetBrains Mono", monospace);font-size:1.1rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:3px solid var(--text-primary);color:var(--text-primary);transition:letter-spacing .3s ease}.config-wrapper:hover .config-section-title{letter-spacing:.08em}.back-home-floating-btn{display:none}.inline-config-panel{background:var(--bg-secondary);border:3px solid var(--text-primary);padding:1.5rem;margin-bottom:2rem;position:relative;transition:all .3s ease}.inline-config-panel:hover{box-shadow:0 4px 16px #0000004d}.inline-config-title{font-family:var(--font-display);font-size:1rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--text-primary);margin-bottom:1.25rem;padding-bottom:.75rem;border-bottom:2px solid var(--text-primary);display:flex;align-items:center;gap:.5rem}@media (max-width: 768px){.inline-config-panel{padding:1.25rem;margin-bottom:1.5rem}.inline-config-title{font-size:.9rem;margin-bottom:1rem}}@media (max-width: 768px){.home-container{flex-direction:column}.app-main-wrapper{margin-left:0!important;height:auto;overflow-y:visible;overflow-x:hidden;width:100%}.sidebar-mobile-close{display:flex;position:absolute;top:1rem;right:1rem;width:40px;height:40px;background:var(--text-primary);color:var(--bg-primary);align-items:center;justify-content:center;font-size:1.25rem;font-weight:900;cursor:pointer;z-index:10;border:2px solid var(--text-primary)}@media (min-width: 769px){.sidebar-mobile-close{display:none}}.home-hero{padding:4rem 1.25rem 3rem;min-height:auto}.home-hero-title{font-size:clamp(2rem,10vw,3rem);margin-top:1rem;line-height:1.1}.main-content{padding:2rem 1rem}.sidebar{width:280px;z-index:2000;position:fixed;transform:translate(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1)}.sidebar.open{transform:translate(0)}.sidebar-toggle{display:flex!important;position:fixed;right:1.25rem;top:1.25rem;width:56px;height:56px;background:var(--text-primary);color:var(--bg-primary);border:4px solid var(--text-primary);box-shadow:6px 6px #0006;z-index:2001;font-size:1.75rem;font-weight:900;cursor:pointer;align-items:center;justify-content:center;transition:all .2s cubic-bezier(.23,1,.32,1)}.sidebar-toggle:hover{transform:translate(-2px,-2px);box-shadow:6px 6px #ffffff4d}.sidebar-toggle:active{transform:translate(0);box-shadow:2px 2px #fff3}.content-header{padding:1.5rem;margin-bottom:2rem}.tab-button{padding:1rem}}@media (max-width: 480px){.home-hero{padding:1rem .75rem 1.25rem;min-height:auto}.home-hero-title{font-size:1.5rem;margin-top:.5rem;margin-bottom:.5rem;letter-spacing:-.03em;line-height:1.1}.home-hero-subtitle{font-size:.8rem;padding:0 .5rem;margin-bottom:.75rem;line-height:1.4}.home-hero-stats{flex-direction:row;gap:.5rem;margin-top:.75rem}.home-stat{max-width:none;min-width:65px;padding:.4rem .6rem}.home-stat-number{font-size:1.1rem}.home-stat-label{font-size:.55rem;margin-top:.1rem}.sidebar-toggle{right:.75rem;top:.75rem;width:46px;height:46px;font-size:1.35rem}.main-content{padding:1.5rem 1rem}.content-header{padding:1.25rem;margin-bottom:1.5rem}.tab-button{padding:.85rem;gap:.75rem}.tab-button .icon{font-size:1.5rem}.tab-button .label{font-size:.8rem}}