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components;@layer utilities{.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.isolate{isolation:isolate}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.grid{display:grid}.hidden{display:none}.inline{display:inline}.table{display:table}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.italic{font-style:italic}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px 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var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--bg:#f7f9fc;--surface:#fff;--surface-2:#eef3f8;--text:#102338;--muted:#5c6f82;--line:#dce5ee;--brand:#0a67d1;--brand-strong:#064a9d;--brand-soft:#e8f2ff;--teal:#0b8a83;--shadow:0 18px 45px #16304f17;--radius:18px}html.dark{--bg:#07111d;--surface:#0d1b2a;--surface-2:#132437;--text:#eaf2fa;--muted:#a9bacb;--line:#24384c;--brand:#64a8ff;--brand-strong:#9bc7ff;--brand-soft:#102d4f;--teal:#5ed1c8;--shadow:0 18px 50px #00000047}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{background:var(--bg);color:var(--text);text-rendering:optimizelegibility;margin:0;font-family:Arial,Helvetica,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid var(--brand);outline-offset:3px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:1000;background:var(--brand);color:#fff;border-radius:10px;padding:10px 14px;font-size:.86rem;font-weight:850;transition:transform .16s;position:fixed;top:10px;left:10px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.shell{width:min(1180px,100% - 32px);margin-inline:auto}.site-header{z-index:50;border-bottom:1px solid var(--line);position:sticky;top:0}@supports (color:color-mix(in lab, red, red)){.site-header{border-bottom:1px solid color-mix(in srgb, var(--line) 72%, transparent)}}.site-header{background:var(--bg)}@supports (color:color-mix(in lab, red, red)){.site-header{background:color-mix(in srgb, var(--bg) 88%, transparent)}}.site-header{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.header-inner{justify-content:space-between;align-items:center;height:72px;display:flex;position:relative}.logo{flex:none;display:inline-flex}.logo-image{aspect-ratio:1774/444;background:url(/knowddi-light.png) 50%/contain no-repeat;width:220px}html.dark .logo-image{background-image:url(/knowddi-dark.png)}.primary-nav{color:var(--muted);align-items:center;gap:24px;font-size:.94rem;font-weight:700;display:flex}.primary-nav a:hover{color:var(--brand)}.global-search-link{border:1px solid var(--line);background:var(--surface);min-height:40px;color:var(--text);border-radius:11px;align-items:center;gap:7px;padding:0 11px;display:inline-flex}.global-search-link svg{width:17px;color:var(--brand)}.global-search-link:hover{border-color:var(--brand);background:var(--brand-soft)}.mobile-nav{display:none}.mobile-nav-toggle{border:1px solid var(--line);background:var(--surface);min-height:42px;color:var(--text);cursor:pointer;border-radius:11px;align-items:center;gap:9px;padding:0 12px;font-size:.86rem;font-weight:850;display:inline-flex}.mobile-nav-toggle[aria-expanded=true]{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-strong)}.mobile-nav-icon{gap:4px;width:18px;display:grid}.mobile-nav-icon span{background:currentColor;border-radius:999px;height:2px;transition:transform .18s,opacity .18s}.mobile-nav-toggle[aria-expanded=true] .mobile-nav-icon span:first-child{transform:translateY(6px)rotate(45deg)}.mobile-nav-toggle[aria-expanded=true] .mobile-nav-icon span:nth-child(2){opacity:0}.mobile-nav-toggle[aria-expanded=true] .mobile-nav-icon span:last-child{transform:translateY(-6px)rotate(-45deg)}.mobile-nav-panel{border:1px solid var(--line);background:var(--surface);border-radius:18px;width:min(330px,100vw - 22px);padding:10px;position:absolute;top:calc(100% + 10px);right:0;overflow:hidden;box-shadow:0 22px 60px #020e1e38}.mobile-nav-panel nav{display:grid}.mobile-nav-panel nav a{min-height:48px;color:var(--text);border-radius:10px;align-items:center;padding:0 12px;font-weight:800;display:flex}.mobile-nav-panel nav a:hover{background:var(--brand-soft);color:var(--brand-strong)}.mobile-nav-account{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;margin-top:8px;padding:14px 4px 4px 12px;display:flex}.mobile-nav-account .account-menu{flex:1;min-width:0}.nav-sign-in{background:var(--brand);border-radius:10px;align-items:center;min-height:38px;padding:0 14px;display:inline-flex;color:#fff!important}.account-loading{background:linear-gradient(90deg, var(--surface-2), var(--surface), var(--surface-2));background-size:200% 100%;border-radius:10px;width:86px;height:38px;animation:1.4s infinite account-loading}.account-menu{align-items:center;gap:8px;display:flex}.account-avatar{background:var(--brand-soft);width:34px;height:34px;color:var(--brand-strong);border-radius:999px;flex:none;place-items:center;font-size:.8rem;font-weight:900;display:grid}.account-name{max-width:120px;color:var(--text);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.account-links{align-items:center;gap:8px;display:flex}.account-saved,.account-suggestions,.account-dashboard{white-space:nowrap;font-size:.76rem;font-weight:850;color:var(--brand)!important}.account-sign-out{border:1px solid var(--line);background:var(--surface);min-height:36px;color:var(--muted);cursor:pointer;border-radius:9px;padding:0 10px;font-size:.76rem;font-weight:800}.account-sign-out:hover{border-color:var(--brand);color:var(--brand)}.icon-button{border:1px solid var(--line);background:var(--surface);width:42px;height:42px;color:var(--text);cursor:pointer;border-radius:12px;place-items:center;display:grid}.icon-button svg{width:20px}.theme-toggle .theme-sun-icon,.theme-toggle .theme-moon-icon{display:none}.theme-toggle[data-theme-mode=light] .theme-sun-icon,.theme-toggle[data-theme-mode=dark] .theme-moon-icon{display:block}.theme-toggle[data-theme-mode=system]{grid-template-columns:repeat(2,14px);gap:1px}.theme-toggle[data-theme-mode=system] .theme-sun-icon,.theme-toggle[data-theme-mode=system] .theme-moon-icon{width:14px;display:block}.hero{isolation:isolate;background:#031326;border-bottom:1px solid #163758;align-items:center;min-height:min(760px,100svh - 72px);padding:88px 0 74px;display:grid;position:relative;overflow:hidden}.hero-background{z-index:-2;object-fit:cover;object-position:center;filter:saturate(1.08)contrast(1.04);transform:scale(1.015)}.hero:after{content:"";z-index:-1;background:linear-gradient(90deg,#020e1ef7 0%,#021124e8 37%,#021329ad 62%,#010e1f3d 100%),linear-gradient(#010b1833,#010c1b66);position:absolute;inset:0}.hero-content{z-index:1;position:relative}.hero-copy{max-width:820px}.eyebrow{color:var(--brand);text-transform:uppercase;letter-spacing:.14em;font-size:.76rem;font-weight:800}.hero .eyebrow{color:#8fc9ff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#051f3a8c;border:1px solid #7dc0ff42;border-radius:999px;align-items:center;min-height:30px;padding:0 11px;display:inline-flex}.hero h1{color:#f5f9ff;letter-spacing:-.058em;text-shadow:0 3px 28px #00000052;max-width:800px;margin:18px 0 22px;font-size:clamp(3rem,6.4vw,5.7rem);line-height:.96}.hero h1 span{color:#76b9ff}.hero-copy>p{color:#c8d9ea;text-shadow:0 2px 18px #0000006b;max-width:690px;margin:0;font-size:clamp(1.03rem,2vw,1.24rem)}.hero-actions{flex-wrap:wrap;align-items:center;gap:14px;margin-top:30px;display:flex}.button{cursor:pointer;border:1px solid #0000;border-radius:12px;justify-content:center;align-items:center;gap:9px;min-height:46px;padding:0 18px;font-weight:800;display:inline-flex}.button svg{width:18px}.button.primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px var(--brand)}@supports (color:color-mix(in lab, red, red)){.button.primary{box-shadow:0 10px 24px color-mix(in srgb, var(--brand) 26%, transparent)}}.button.secondary{border-color:var(--line);background:var(--surface);color:var(--text)}.hero .button.primary{background:#1678e6;box-shadow:0 14px 34px #0065dc57}.hero .button.primary:hover{background:#2588f3}.hero .button.secondary{color:#f2f7fd;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#061c338f;border-color:#d3e6f952}.hero .button.secondary:hover{background:#0e304eb3;border-color:#d3e6f994}.button:hover{transform:translateY(-1px)}.button:disabled{opacity:.6;cursor:wait;transform:none}.hero-stats{grid-template-columns:repeat(3,1fr);gap:10px;max-width:690px;margin-top:40px;display:grid}.stat{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#04182e8a;border:1px solid #b6d5f12e;border-radius:13px;padding:14px 16px}.stat strong{color:#f7fbff;font-size:1.42rem;line-height:1.1;display:block}.stat span{color:#aec5dc;font-size:.8rem}.home-learning{border-bottom:1px solid var(--line);background:var(--surface);padding:76px 0 80px}.continue-learning{border-bottom:1px solid var(--line);background:var(--bg);padding:28px 0}.continue-learning-inner{border:1px solid var(--brand);grid-template-columns:minmax(0,1fr) 260px;align-items:center;gap:34px;padding:26px 30px;display:grid}@supports (color:color-mix(in lab, red, red)){.continue-learning-inner{border:1px solid color-mix(in srgb, var(--brand) 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var(--line);border-radius:var(--radius);background:var(--surface);flex-direction:column;min-height:300px;padding:22px;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex}.home-learning .lesson-card{background:var(--bg)}.lesson-card:hover{border-color:var(--brand);transform:translateY(-3px)}@supports (color:color-mix(in lab, red, red)){.lesson-card:hover{border-color:color-mix(in srgb, var(--brand) 45%, var(--line))}}.lesson-card:hover{box-shadow:var(--shadow)}.lesson-card-top,.lesson-card-footer{justify-content:space-between;align-items:center;gap:12px;display:flex}.lesson-card h3{letter-spacing:-.025em;margin:22px 0 10px;font-size:1.4rem;line-height:1.2}.lesson-card h3 a:hover{color:var(--brand)}.lesson-card>p{color:var(--muted);margin:0 0 22px;font-size:.93rem}.lesson-card-footer{border-top:1px solid var(--line);color:var(--muted);margin-top:auto;padding-top:16px;font-size:.8rem;font-weight:750}.lesson-card-footer .learn-link{margin-top:0}.lesson-card-meta{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.lesson-status{color:var(--brand);align-items:center;gap:4px;font-size:.7rem;font-weight:850;display:inline-flex}.lesson-status.is-complete{color:var(--teal)}.lesson-status svg{width:13px}.track-badge{border:1px solid var(--brand);align-items:center;width:fit-content;min-height:27px;padding:0 9px;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.track-badge{border:1px solid color-mix(in srgb, var(--brand) 22%, transparent)}}.track-badge{background:var(--brand-soft);color:var(--brand-strong);border-radius:999px;font-size:.7rem;font-weight:850}.track-operations{border-color:var(--teal)}@supports (color:color-mix(in lab, red, red)){.track-operations{border-color:color-mix(in srgb, var(--teal) 28%, transparent)}}.track-operations{background:var(--teal)}@supports (color:color-mix(in lab, red, red)){.track-operations{background:color-mix(in srgb, var(--teal) 12%, var(--surface))}}.track-operations{color:var(--teal)}.track-security{background:#8954d8;border-color:#8954d847}@supports (color:color-mix(in lab, red, red)){.track-security{background:color-mix(in srgb, #8954d8 12%, var(--surface))}}.track-security{color:#8954d8}@supports (color:color-mix(in lab, red, red)){.track-security{color:color-mix(in srgb, #8954d8 86%, var(--text))}}.reading-time{color:var(--muted);align-items:center;gap:6px;font-size:.76rem;font-weight:750;display:inline-flex}.reading-time svg{width:15px}.glossary-section{padding:76px 0 96px}.section-heading{justify-content:space-between;align-items:end;gap:24px;margin-bottom:24px;display:flex}.section-heading h2{letter-spacing:-.04em;margin:8px 0 0;font-size:clamp(2rem,4vw,3rem);line-height:1.1}.section-heading>p{color:var(--muted);white-space:nowrap}.search-panel{z-index:20;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin-bottom:30px;padding:18px;position:sticky;top:88px}@supports (color:color-mix(in lab, red, red)){.search-panel{background:color-mix(in srgb, var(--surface) 94%, transparent)}}.search-panel{box-shadow:var(--shadow);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.search-box{border:1px solid var(--line);background:var(--bg);border-radius:13px;align-items:center;gap:12px;padding:0 14px;display:flex}.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand)}@supports (color:color-mix(in lab, red, red)){.search-box:focus-within{box-shadow:0 0 0 4px color-mix(in srgb, var(--brand) 12%, transparent)}}.search-box svg{width:22px;color:var(--brand);flex:none}.search-box input{width:100%;min-height:54px;color:var(--text);background:0 0;border:0;outline:0;font-size:1.02rem}.search-box input::placeholder{color:var(--muted)}@supports (color:color-mix(in lab, red, red)){.search-box input::placeholder{color:color-mix(in srgb, var(--muted) 76%, transparent)}}kbd{border:1px solid 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