@layer reset, base, layout, components, responsive;
@layer reset {
  *,*::before,*::after{box-sizing:border-box}body,h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}img,svg{display:block;max-width:100%}[hidden]{display:none!important}button{cursor:pointer}a{color:inherit}button{color:inherit}img{height:auto}
}
@layer base {
  :root{--paper:#f7f5ed;--white:#fffdf8;--ink:#1c302a;--green:#173f35;--muted:#626d62;--line:#d9ddd1;--sage:#e9eddf;--gold:#b69b60;--serif:Georgia,'Times New Roman',serif;--sans:'Segoe UI',-apple-system,BlinkMacSystemFont,Arial,sans-serif;--mono:'SFMono-Regular',Consolas,'Liberation Mono',monospace;--max:1180px}
  html{scroll-behavior:smooth;scroll-padding-top:112px}body{font:16px/1.65 var(--sans);background:var(--paper);color:var(--ink)}a{text-decoration:none}p{color:var(--muted)}h1,h2,h3,h4{font-weight:500;line-height:1.12}h2{font-family:var(--serif);font-size:clamp(2.4rem,4.4vw,3.7rem);letter-spacing:-.045em}button{border:0;background:none}a,button,input,summary{outline-offset:6px}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--green)}::selection{background:#d9e1c6}input{min-width:0}strong{font-weight:600}section{scroll-margin-top:20px}.mono{font-family:var(--mono);letter-spacing:.06em}.wrap{max-width:var(--max);margin-inline:auto;width:calc(100% - 96px)}.section{padding-block:100px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.eyebrow{display:flex;align-items:center;gap:10px;font:500 11px/1.6 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--green)}.fine-print{font-size:12px}.meta-label{display:block;font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}.skip-link{position:fixed;top:8px;left:16px;background:var(--green);color:var(--white);z-index:100;padding:10px 20px;transform:translateY(-150%)}.skip-link:focus{transform:none}.status-dot{width:7px;height:7px;border-radius:50%;background:#64825a;box-shadow:0 0 0 4px #e5eadb;flex-shrink:0}
}
@layer layout {
  .site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:rgba(247,245,237,.97);backdrop-filter:blur(16px)}.header-inner{max-width:var(--max);width:calc(100% - 96px);margin:auto;min-height:94px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:12px;font-size:12px;line-height:1.4;flex-shrink:0}.brand strong{font-weight:650}.brand-symbol{font:italic 46px/.9 var(--serif);color:var(--green);letter-spacing:-.1em;width:35px}.brand-symbol span{color:var(--gold)}.main-nav{display:flex;gap:27px;align-items:center}.main-nav a{font-size:12px;color:#4e5a50;position:relative;padding-block:12px}.main-nav a::after{content:'';position:absolute;bottom:5px;left:0;right:0;height:1px;transform:scaleX(0);transform-origin:left;background:var(--green);transition:transform .2s}.main-nav a:hover::after,.main-nav a[aria-current]::after{transform:scaleX(1)}.header-actions{display:flex;gap:26px;align-items:center}.language-nav{font:11px var(--mono);display:flex;gap:8px;align-items:center}.language-nav a{padding:8px 0;color:var(--muted)}.language-nav a[aria-current]{color:var(--green);text-decoration:underline;text-underline-offset:5px}.language-nav span{color:#b0b5a7}.header-contact{display:flex;gap:17px;align-items:center;font-size:12px;padding:9px 14px;border:1px solid var(--green)}.header-contact:hover{background:var(--green);color:var(--white)}
  .hero{padding-block:78px 72px;display:grid;grid-template-columns:1.1fr 1fr;gap:66px;align-items:center}.hero h1{font:clamp(3.8rem,7.1vw,6.45rem)/.97 var(--serif);letter-spacing:-.065em;margin:27px 0}.hero h1>span,.hero h1>em{display:block}.hero h1 em{font-weight:400;color:var(--green)}.hero-intro{max-width:440px;font-size:16px;color:var(--ink);line-height:1.7}.hero-support{max-width:410px;font-size:14px;margin-top:14px}.hero-cta{display:flex;gap:24px;align-items:center;margin-top:28px}.hero-location{display:flex;gap:9px;align-items:center;font-size:11px;margin-top:30px}.network-sheet{background:#eef0e5;border:1px solid #d8ddce;position:relative;transform:rotate(-1.5deg);margin-top:28px;box-shadow:9px 12px 0 #e7e8dd}.sheet-heading{display:flex;align-items:center;justify-content:space-between;padding:19px 20px;border-bottom:1px solid #d8ddce;font-size:9px;color:var(--green)}.sheet-index{color:var(--muted);font:9px var(--mono)}.topology{width:100%;padding:10px 5px}.node-label{fill:#173f35;font:11px var(--mono)}.ip-label{fill:#64735d;font:10px var(--mono)}.sheet-footer{border-top:1px solid #d8ddce;padding:17px 20px;display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:11px}.sheet-footer .mono{font-size:9px;color:#64735d}.diagram-caption{position:absolute;top:calc(100% + 25px);left:0;right:0;font:9px var(--mono);text-align:right}.credential-band{border-block:1px solid var(--line)}.credential-grid{display:grid;grid-template-columns:1fr 1fr 1.2fr;padding-block:26px}.credential-grid>div{display:flex;gap:17px;align-items:center;padding-inline:28px;border-left:1px solid var(--line)}.credential-grid>div:first-child{border:0;padding-left:0}.credential-icon{display:grid;place-items:center;width:32px;height:32px;border:1px solid #b9c4b0;border-radius:50%;color:var(--green);font-size:15px;flex-shrink:0}.credential-grid strong{display:block;font-size:13px;color:var(--ink)}.credential-grid p>span{display:block;font-size:11px;margin-top:2px}
  .section-marker{display:flex;align-items:center;gap:16px;font-size:11px;margin-bottom:40px}.section-marker .mono{color:#8d9785;font-size:10px}.section-marker>span:last-child{text-transform:uppercase;letter-spacing:.12em}.profile-layout{display:grid;grid-template-columns:.8fr 1.3fr;gap:100px;align-items:center}.portrait-block{max-width:350px}.portrait-frame{background:#e2e3d7;aspect-ratio:4/4.6;overflow:hidden}.portrait-frame img{width:100%;height:100%;object-fit:cover;object-position:center 35%;filter:saturate(.7)}.portrait-label{display:block;margin-top:17px;font-size:9px;color:var(--muted)}.profile-copy .eyebrow{margin-bottom:19px}.profile-copy h2{font-size:clamp(2.3rem,3.5vw,3rem);max-width:540px;margin-bottom:25px}.profile-copy>p:not(.eyebrow){font-size:14px;margin-top:15px}.profile-meta{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}.profile-meta strong{display:block;font-size:12px;margin-top:6px}.skills-section{background:#ecefe4;border-block:1px solid #e0e4d6}.section-heading{display:grid;grid-template-columns:1.15fr 1fr;gap:80px;align-items:end;margin-bottom:45px}.section-heading>p{font-size:14px;max-width:430px;line-height:1.8}.skill-row{display:grid;grid-template-columns:40px 170px 1fr 130px;gap:20px;border-top:1px solid #cfd6c5;padding:28px 0}.skill-row:last-child{border-bottom:1px solid #cfd6c5}.skill-num{color:#8d9785;font-size:10px;padding-top:5px}.skill-row h3{font:24px var(--serif);letter-spacing:-.03em;padding-top:1px}.skill-row p{font-size:13px;max-width:530px}.practice-label{justify-self:end;font:10px/1.6 var(--mono);text-align:right;color:var(--muted);padding-top:6px}.tags{display:flex;flex-wrap:wrap;gap:7px;list-style:none;padding:0;margin-top:14px}.tags li{border:1px solid #c9d1c0;color:#496047;padding:3px 8px;font:9px/1.5 var(--mono);letter-spacing:.02em}
  .featured-project{background:var(--green);color:var(--white);display:grid;grid-template-columns:1fr .95fr;gap:65px;padding:50px}.project-status{display:inline-flex;border:1px solid #6c8c73;padding:5px 10px;font:9px/1.5 var(--mono);letter-spacing:.08em;color:#d5dfbc}.project-category{font-size:9px;color:#788371;letter-spacing:.08em}.featured-copy .project-category{margin-top:28px;color:#b5c5ad}.featured-copy h3{font:clamp(2.8rem,4.2vw,4rem)/1 var(--serif);letter-spacing:-.045em;margin:14px 0 22px}.featured-copy h3 em{font-weight:400;color:#d0d8b2}.featured-copy>p:not(.project-category){font-size:14px;color:#c5d2be;max-width:390px}.tags-dark li{border-color:#4b6d59;color:#c6d4bd}.project-link{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:12px;padding:0 0 9px;border-bottom:1px solid currentColor;text-align:left;margin-top:26px;width:100%;transition:gap .2s}.project-link:hover{gap:24px}.featured-copy .project-link{max-width:270px;color:#f1f0dd}.tfe-notebook{align-self:center;background:#f0f0e4;color:var(--green);transform:rotate(1deg);padding:27px 28px;box-shadow:8px 9px 0 #0d3028}.notebook-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #ccd3c1;padding-bottom:14px;font-size:9px}.notebook-dots{letter-spacing:3px;color:#8e9c81}.notebook-title{font:26px/1.2 var(--serif);letter-spacing:-.03em;color:var(--green);margin-top:23px}.tfe-steps{list-style:none;padding:0;margin-top:25px}.tfe-steps li{display:flex;gap:20px;border-bottom:1px solid #d3d9c9;padding:15px 0}.tfe-steps li:last-child{border:0}.tfe-steps .mono{font-size:9px;color:#929b83}.tfe-steps strong{font:11px var(--mono);letter-spacing:.12em}.tfe-steps p{font-size:11px;margin-top:6px;line-height:1.5}.notebook-note{font:9px/1.5 var(--mono);margin-top:22px;border-top:1px solid #ccd3c1;padding-top:15px}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:24px}.project-card{border:1px solid var(--line);display:flex;flex-direction:column;background:#faf9f2}.card-art{height:170px;background:#e9eddf;padding:20px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}.card-art>.mono{font-size:8px;color:#6c7b62}.schema-tables{display:flex;align-items:center;justify-content:center;margin:auto 0;gap:10px;font:10px/1.8 var(--mono);color:var(--green)}.schema-tables>span{background:#f8f9f1;border:1px solid #9baa90;padding:10px}.schema-tables small{font-size:7px;color:#7c886e}.schema-tables i{font-style:normal;font-size:8px;white-space:nowrap}.java-art{background:#e5e9e0}.java-art pre{font:11px/1.6 var(--mono);color:#53674c;margin:8px 0 0 20px}.java-art pre span{color:#173f35}.infra-art{background:#e7e4d8}.terminal-lines{font:11px/1.9 var(--mono);padding:8px 4px}.terminal-lines>span{display:block;color:#2c4c3d}.terminal-lines .terminal-muted{color:#838773;font-size:9px;margin-top:10px}.card-body{padding:25px;display:flex;flex-direction:column;flex:1}.card-body h3{font:25px/1.15 var(--serif);letter-spacing:-.035em;min-height:58px;margin:13px 0 15px}.card-body>p:not(.project-category){font-size:12px;line-height:1.85}.card-body .tags{margin-top:20px;margin-bottom:24px}.card-body .project-link{margin-top:auto;font-size:11px}
  .lab-section{background:#eeefe5;border-block:1px solid #dee3d4}.lab-section .eyebrow{margin-bottom:14px}.lab-shell{background:var(--white);border:1px solid #cbd3c1}.lab-tabs{display:flex;align-items:center;border-bottom:1px solid #cbd3c1;padding-inline:24px;gap:24px}.lab-tabs button{display:flex;align-items:center;gap:10px;font-size:12px;min-height:64px;border-bottom:2px solid transparent;margin-bottom:-1px;color:#75816e}.lab-tabs button[aria-selected=true]{border-bottom-color:var(--green);color:var(--green)}.tab-number{font-size:9px}.lab-local{margin-left:auto;color:#75816e;font-size:8px}.calculator-layout{display:grid;grid-template-columns:.95fr 1fr}.calc-inputs{padding:36px;border-right:1px solid #e2e6da}.calc-inputs h3{font:28px var(--serif);letter-spacing:-.03em}.calc-inputs>p{font-size:12px;margin-top:9px}.input-row{display:flex;gap:14px;margin:27px 0 20px}.field label{display:block;font-size:10px;margin-bottom:7px;color:var(--muted)}.ip-field{flex:1}.prefix-field{width:78px}input{width:100%;border:1px solid #b7c3aa;border-radius:0;background:#fafbf5;color:var(--green);font:15px var(--mono);padding:12px;height:47px}.prefix-input{position:relative}.prefix-input>span{position:absolute;left:10px;top:11px;color:#939e86;font:16px var(--mono)}.prefix-input input{padding-left:25px}.calc-inputs .button{width:100%;justify-content:space-between;font-size:12px}.examples{display:flex;gap:10px;align-items:center;margin-top:18px;font-size:10px;color:var(--muted)}.examples button{font:10px var(--mono);border:1px solid var(--line);padding:4px 8px}.examples button:hover{background:var(--sage)}.calc-results{padding:34px}.result-heading{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:25px}.result-heading>span{font-size:9px;color:var(--muted)}.result-heading strong{font-size:14px;letter-spacing:0;color:var(--green)}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:19px 25px}.result-grid dt{font-size:10px;color:var(--muted);margin-bottom:3px}.result-grid dd{font:13px/1.5 var(--mono);overflow-wrap:anywhere}.host-result{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:16px}.host-result dd{font-size:25px;color:var(--green)}.result-note{font-size:10px;margin-top:14px;line-height:1.7}.binary-details{border-top:1px solid #dce1d1;padding:18px 35px}.binary-details summary{font-size:11px;color:var(--green);cursor:pointer;width:fit-content}.binary-key{display:flex;gap:24px;margin-top:20px;font-size:10px;color:var(--muted)}.binary-key>span{display:flex;align-items:center;gap:7px}.binary-key i{width:9px;height:9px}.network-bit-key{background:var(--green)}.host-bit-key{background:#b99b5f}.binary-result{display:flex;gap:14px;flex-wrap:wrap;margin:13px 0}.binary-octet{font:clamp(12px,1.8vw,20px) var(--mono);letter-spacing:.08em}.bit-network{color:var(--green)}.bit-host{color:#856b33}.binary-details>.fine-print{font-size:10px}.error-message{font-size:11px;color:#963e2d;line-height:1.6}.error-message:not(:empty){margin-top:13px}[aria-invalid=true]{border-color:#963e2d}.challenge-layout{display:grid;grid-template-columns:.9fr 1fr;gap:55px;padding:40px}.challenge-layout h3{font:30px var(--serif);letter-spacing:-.03em;margin:14px 0 18px}.challenge-layout p:not(.eyebrow){font-size:12px}.challenge-score{border-top:1px solid var(--line);margin-top:30px;padding-top:19px;display:flex;justify-content:space-between;align-items:center}.challenge-score strong{font-size:20px;color:var(--green)}.challenge-score+.fine-print{margin-top:8px}.challenge-question{background:#eef1e4;padding:28px}.challenge-question>.mono{font-size:17px;color:var(--green)}.challenge-question h4{font-size:14px;line-height:1.6;margin:15px 0 22px}.challenge-actions{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:17px}.challenge-actions .button{font-size:11px;padding:10px 17px}.text-button{font-size:11px;text-decoration:underline;text-underline-offset:4px;padding:7px 0}.challenge-feedback{font-size:12px!important;line-height:1.8;margin-top:15px;white-space:pre-line}.challenge-feedback[data-correct=true]{color:#28562b}.challenge-feedback[data-correct=false]{color:#963e2d}.future-lab{display:flex;gap:20px;align-items:center;border-top:1px solid #cfd7c3;padding-top:27px;margin-top:28px}.future-symbol{font-size:25px;color:#8b977d;flex-shrink:0}.future-lab h3{font:21px var(--serif);letter-spacing:-.03em}.future-lab p{font-size:11px;max-width:710px;margin-top:7px;line-height:1.8}.future-badge{margin-left:auto;white-space:nowrap;align-self:flex-start;font:8px var(--mono);color:#6b775e;border:1px solid #bac5ac;padding:5px 8px}.notice{padding:15px;background:#e8ebde;font-size:13px}
  .contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.contact-section h2{font-size:clamp(3rem,5.5vw,4.8rem);margin:18px 0 23px}.contact-layout>div>p:not(.eyebrow){font-size:14px;max-width:400px}.email-link{display:block;padding-bottom:23px;border-bottom:1px solid var(--line)}.email-link strong{display:block;font:clamp(1.4rem,2.4vw,2rem)/1.3 var(--serif);letter-spacing:-.03em;margin-top:14px}.email-link strong>span{float:right;font:24px var(--sans)}.contact-row{display:flex;justify-content:space-between;align-items:center;padding:16px 0;border-bottom:1px solid var(--line);font-size:13px}.contact-row small{font:10px var(--mono);color:var(--muted);margin-left:8px}.contact-row:hover,.email-link:hover{color:#63804c}.site-footer{border-top:1px solid var(--line);padding-block:28px}.footer-inner{display:flex;align-items:center;gap:30px;font-size:11px}.footer-inner>a:first-child{font-weight:600}.footer-dot{color:var(--gold);font-size:22px}.footer-inner>p{font-size:10px}.footer-inner>.mono{margin-left:auto;font-size:9px;color:var(--muted)}.back-top{font-size:10px}
}
@layer components {
  .button{display:inline-flex;align-items:center;justify-content:center;gap:28px;padding:13px 20px;font-size:12px;line-height:1.5;border:1px solid transparent;transition:background .18s,color .18s}.button-primary{background:var(--green);color:var(--white)}.button-primary:hover{background:#315b46}.button:disabled{cursor:default;background:#8a9981}.text-link{font-size:12px;border-bottom:1px solid #96a18c;padding-bottom:3px}.text-link:hover{color:#66834f}dialog{max-width:740px;width:calc(100% - 32px);max-height:86dvh;overflow:auto;border:1px solid #a8b59a;padding:0;background:var(--paper);color:var(--ink);box-shadow:0 25px 100px #0c251c33}dialog::backdrop{background:#112c26b8;backdrop-filter:blur(4px)}.dialog-top{display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;background:var(--paper);padding:17px 30px;border-bottom:1px solid var(--line);z-index:2}.dialog-top .mono{font-size:9px;color:var(--muted)}.dialog-close{font-size:27px;line-height:1;width:34px;height:34px;display:grid;place-items:center}.dialog-close:hover{background:var(--sage)}#dialog-content{padding:34px 40px 42px}#dialog-content h2{font-size:38px;margin:12px 0 21px}#dialog-content h3{font:22px var(--serif);margin:25px 0 10px}#dialog-content p,#dialog-content li{font-size:13px;line-height:1.85;color:var(--muted)}#dialog-content ul{padding-left:18px;margin-top:12px}#dialog-content li+li{margin-top:6px}#dialog-content .project-status{color:var(--green);border-color:#b4c2a6}#dialog-content pre{padding:22px;background:#e7ecde;font:11px/1.9 var(--mono);overflow:auto;border-left:2px solid var(--green);margin-top:18px}#dialog-content .private-note{font-size:10px;margin-top:24px;border-top:1px solid var(--line);padding-top:15px}#dialog-content .dialog-conclusion{margin-top:20px;color:var(--green);font-style:italic}.toast{position:fixed;bottom:20px;right:20px;max-width:calc(100% - 40px);background:var(--green);color:var(--white);font-size:12px;z-index:100;padding:12px 20px}.toast:empty{display:none}
}
@layer components {
  .credential-badge{display:flex;align-items:center;gap:16px;min-width:0;flex:1}
  .ccst-badge{display:block;width:80px;height:80px;object-fit:contain;flex-shrink:0}
  .credential-badge:hover strong{text-decoration:underline;text-underline-offset:4px}
  @media(max-width:800px){.credential-badge{gap:10px}.ccst-badge{width:64px;height:64px}}
  @media(max-width:600px){.ccst-badge{width:76px;height:76px}.credential-grid .credential-badge p{display:block}.credential-grid .credential-badge p>span{text-align:left;max-width:none}}
}
@layer responsive {
  @media(min-width:1500px){.hero{padding-top:105px;padding-bottom:100px}}
  @media(max-width:1100px){.header-inner,.wrap{width:calc(100% - 64px)}.hero{gap:35px}.hero h1{font-size:6.9vw}.main-nav{gap:20px}.profile-layout{gap:60px}.section-heading{gap:50px}.skill-row{grid-template-columns:30px 140px 1fr 105px;gap:15px}.featured-project{gap:35px;padding:35px}.card-body{padding:20px}.schema-tables{gap:6px;font-size:9px}.schema-tables>span{padding:8px}.calc-inputs{padding:27px}.calc-results{padding:27px}.result-heading{flex-wrap:wrap}.contact-layout{gap:65px}}
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}