@font-face{font-family:'Archivo Black';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/archivo-black.woff2') format('woff2');}
  @font-face{font-family:'Space Grotesk';font-style:normal;font-weight:300 700;font-display:swap;src:url('../fonts/space-grotesk.woff2') format('woff2');}
  @font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400 700;font-display:swap;src:url('../fonts/jetbrains-mono.woff2') format('woff2');}


  :root{
    --paper:#fff4e0; --paper-2:#fffaef; --ink:#0a0a0a; --ink-soft:#6e6a5e; --line:#ecdfc0;
    --amber:#b45309; --amber-soft:#fff3b0; --green:#00873c; --green-soft:#d8ffdb; --red:#e0554b; --red-soft:#ffdcd8; --blue:#0a66c2; --blue-soft:#d6e4ff; --grey-soft:#ecdfc0;
    --acid:#c6ff00; --on-accent:#0a0a0a;
    --mono:'JetBrains Mono', monospace; --display:'Archivo Black', sans-serif; --body-font:'Space Grotesk', sans-serif;
    --bw:3px; --shadow-c:#0a0a0a;
  }

  :root[data-theme="dark"]{
    --paper:#0a0a0a; --paper-2:#151512; --ink:#fff4e0; --ink-soft:#8f8a78; --line:#2c2a24;
    --amber:#f0a640; --amber-soft:#3a2c10; --green:#3ddc84; --green-soft:#10301f; --red:#ff8a7e; --red-soft:#3a1815; --blue:#6ab0f5; --blue-soft:#16233a; --grey-soft:#2c2a24;
    --on-accent:#0a0a0a; --shadow-c:#c6ff00;
    color-scheme: dark;
  }

  .theme-btn{width:44px;height:44px;border:2px solid var(--ink);border-radius:0;background:var(--paper-2);cursor:pointer;color:var(--ink);display:grid;place-items:center;transition:transform .15s,box-shadow .15s;flex-shrink:0;}
  .theme-btn:hover{background:var(--acid);color:var(--on-accent);box-shadow:3px 3px 0 0 var(--shadow-c);transform:translate(-1px,-1px);}
  .theme-btn svg{width:15px;height:15px;}
  :root[data-theme="dark"] .theme-btn .moon{display:none;}
  :root:not([data-theme="dark"]) .theme-btn .sun{display:none;}
  .nav-actions{display:flex;align-items:center;gap:12px;}
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  :root{color-scheme:light;}
  @media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto;} *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important;} }
  @media (prefers-contrast: more){
    :root{ --line:#0a0a0a; --ink-soft:#2c2a24; }
    :root[data-theme="dark"]{ --line:#fff4e0; --ink-soft:#d8d3c0; }
  }
  body{background:var(--paper); color:var(--ink); font-family:var(--body-font); line-height:1.65; font-size:16px; -webkit-font-smoothing:antialiased; transition:background-color .4s, color .4s;}
  ::selection{background:var(--acid); color:var(--on-accent);}
  a{color:var(--ink); -webkit-tap-highlight-color:transparent;}
  a, button{touch-action:manipulation; font-family:inherit;}
  :focus-visible{outline:3px solid var(--amber); outline-offset:2px;}
  .skip-link{position:absolute; left:12px; top:-60px; z-index:200; background:var(--acid); color:var(--on-accent); border:var(--bw) solid var(--ink); padding:10px 16px; border-radius:0; font-size:12.5px; font-weight:700; text-decoration:none; transition:top .2s;}
  .skip-link:focus{top:12px;}
  .wrap{max-width:1180px; margin:0 auto; border-left:1px solid var(--line); border-right:1px solid var(--line);}

  nav{position:sticky; top:0; z-index:50; background:var(--paper); border-bottom:var(--bw) solid var(--ink);}
  .nav-in{display:flex; align-items:center; justify-content:space-between; padding:16px 32px;}
  .logo{display:flex; align-items:center; gap:11px; font-family:var(--display); font-weight:400; font-size:15px; text-decoration:none; color:var(--ink); letter-spacing:-0.2px;}
  .nav-links{display:flex; gap:30px; list-style:none;}
  .nav-links a{text-decoration:none; font-family:var(--mono); font-weight:700; font-size:12px; letter-spacing:1px; text-transform:uppercase; color:var(--ink-soft); transition:color .2s;}
  .nav-links a:hover, .nav-links a.active{color:var(--ink);}
  .apply{background:var(--acid); color:var(--on-accent); text-decoration:none; font-size:12px; font-weight:700; text-transform:uppercase; padding:10px 20px; border:var(--bw) solid var(--ink); border-radius:0; letter-spacing:0.4px; box-shadow:4px 4px 0 0 var(--shadow-c); transition:transform .15s cubic-bezier(.2,.8,.2,1), box-shadow .15s;}
  .apply:hover{transform:translate(2px,2px); box-shadow:2px 2px 0 0 var(--shadow-c);}
  .burger{display:none; flex-direction:column; justify-content:center; gap:5px; width:44px; height:44px; background:var(--paper-2); border:2px solid var(--ink); border-radius:0; cursor:pointer; padding:0;}
  .burger span{display:block; width:16px; height:2px; background:var(--ink); margin:0 auto; transition:transform .25s, opacity .25s;}
  .burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .burger.open span:nth-child(2){opacity:0;}
  .burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .mobile-menu{display:none; position:fixed; top:69px; left:0; right:0; bottom:0; z-index:49; background:var(--paper); overflow-y:auto; overscroll-behavior:contain; padding:12px 24px 40px; transform:translateY(-8px); opacity:0; pointer-events:none; transition:opacity .25s, transform .25s;}
  .mobile-menu.open{opacity:1; transform:translateY(0); pointer-events:auto;}
  .mobile-menu a{display:flex; align-items:center; justify-content:space-between; text-decoration:none; color:var(--ink); font-family:var(--display); font-weight:400; font-size:20px; padding:20px 4px; border-bottom:2px solid var(--line);}
  .mobile-menu a span{color:var(--ink-soft); font-size:12px; font-family:var(--mono);}
  .mobile-menu .apply{display:inline-block; margin-top:24px; text-align:center; font-size:14px; padding:14px 24px; color:var(--on-accent);}

  .article-head{padding:52px 32px 36px; border-bottom:var(--bw) solid var(--ink);}
  .back{font-family:var(--mono); font-weight:700; font-size:12px; color:var(--ink-soft); text-decoration:none; display:inline-flex; align-items:center; gap:8px; margin-bottom:26px;}
  .back:hover{color:var(--amber);}
  .meta-row{display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin-bottom:20px;}
  .badge{font-family:var(--mono); font-size:10.5px; font-weight:700; letter-spacing:1.5px; text-transform:uppercase; padding:5px 12px; border:2px solid var(--ink); border-radius:0;}
  .badge.rep{background:var(--acid); color:var(--on-accent);}
  .meta-row .m{font-family:var(--mono); font-size:12px; color:var(--ink-soft); letter-spacing:0.3px;}
  h1.title{font-family:var(--display); font-weight:400; font-size:clamp(26px,4.2vw,42px); line-height:1.08; letter-spacing:-0.6px; max-width:24ch; text-wrap:balance;}
  .dek{margin-top:16px; font-size:15.5px; color:var(--ink-soft); max-width:72ch;}
  .byline{margin-top:20px; padding-top:18px; border-top:2px dashed var(--line); font-size:12px; color:var(--ink-soft); display:flex; flex-wrap:wrap; gap:6px 22px;}
  .byline b{color:var(--ink); font-weight:700;}

  .toc{margin-top:24px; padding-top:20px; border-top:2px dashed var(--line);}
  .toc-title{font-family:var(--mono); font-size:10.5px; letter-spacing:1.5px; text-transform:uppercase; color:var(--amber); font-weight:700; margin-bottom:12px;}
  .toc ol{list-style:none; counter-reset:toc; display:grid; grid-template-columns:repeat(2,1fr); gap:4px 24px;}
  .toc li{counter-increment:toc; font-size:12.5px;}
  .toc li::before{content:counter(toc,decimal-leading-zero); color:var(--ink-soft); margin-right:8px; font-family:var(--mono); font-size:10.5px;}
  .toc a{color:var(--ink-soft); text-decoration:none;}
  .toc a:hover{color:var(--amber);}

  .article-body{padding:44px 32px; max-width:940px;}
  .article-body h2{font-family:var(--display); font-weight:400; font-size:24px; letter-spacing:-0.2px; margin:58px 0 6px; scroll-margin-top:80px;}
  .article-body h2:first-child{margin-top:0;}
  .article-body h2 .sn{font-family:var(--mono); font-size:11px; color:var(--amber); font-weight:700; letter-spacing:1px; display:block; margin-bottom:6px;}
  .article-body .h2-sub{font-size:12.5px; color:var(--ink-soft); margin-bottom:24px; max-width:72ch;}
  .article-body h3{font-family:var(--display); font-weight:400; font-size:17px; margin:32px 0 10px; scroll-margin-top:80px;}
  .article-body h4{font-family:var(--display); font-weight:400; font-size:14px; margin:20px 0 8px;}
  .article-body p{margin-bottom:15px; max-width:72ch;}
  .article-body p.lead{font-size:15.5px;}
  .article-body ul, .article-body ol{margin:0 0 16px 22px; max-width:70ch;}
  .article-body li{margin-bottom:7px;}
  .article-body code{background:var(--paper-2); padding:2px 6px; border-radius:0; font-size:12.5px; border:1px solid var(--line); white-space:nowrap;}
  sup a{font-size:10px; color:var(--amber); text-decoration:none; font-weight:700; padding:0 1px;}
  sup a:hover{text-decoration:underline;}

  .pill{display:inline-block; font-family:var(--mono); font-size:9.5px; letter-spacing:0.8px; text-transform:uppercase; font-weight:700; padding:3px 9px; border:1px solid currentColor; border-radius:0; white-space:nowrap;}
  .pill.crit{background:var(--red-soft); color:var(--red);}
  .pill.high{background:var(--amber-soft); color:var(--amber);}
  .pill.med{background:var(--blue-soft); color:var(--blue);}
  .pill.low{background:var(--grey-soft); color:var(--ink-soft);}
  .pill.conf{background:var(--green-soft); color:var(--green);}

  .callout{border:1px solid var(--line); border-left:var(--bw) solid var(--amber); background:var(--amber-soft); padding:18px 22px; border-radius:0; margin:22px 0; max-width:72ch;}
  .callout.red{border-left-color:var(--red); background:var(--red-soft);}
  .callout.blue{border-left-color:var(--blue); background:var(--blue-soft);}
  .callout .lbl{font-family:var(--mono); font-size:10px; letter-spacing:1.5px; text-transform:uppercase; font-weight:700; color:var(--amber); margin-bottom:7px;}
  .callout.red .lbl{color:var(--red);}
  .callout.blue .lbl{color:var(--blue);}
  .callout p{margin-bottom:0; font-size:13.5px;}
  .callout p + p{margin-top:10px;}

  .item{border:2px solid var(--ink); border-radius:0; padding:20px 22px; margin:16px 0; max-width:72ch; background:var(--paper); box-shadow:4px 4px 0 0 var(--shadow-c);}
  .item .ih{display:flex; align-items:baseline; justify-content:space-between; gap:12px; flex-wrap:wrap; margin-bottom:6px;}
  .item .ih h4{margin:0; font-size:16px;}
  .item .grade{display:flex; gap:6px; flex-wrap:wrap; margin:8px 0 12px;}
  .item p{font-size:13.5px; margin-bottom:9px;}
  .item ul{margin-bottom:6px;}
  .item li{font-size:13px; color:var(--ink-soft);}
  .item .why{font-size:12.5px; color:var(--ink-soft); border-top:2px dashed var(--line); padding-top:10px; margin-top:10px; margin-bottom:0;}
  .item .why b{color:var(--ink);}

  .tbl{border:2px solid var(--ink); border-radius:0; overflow:hidden; margin:20px 0; max-width:72ch; font-size:12.5px;}
  .tbl .th, .tbl .tr{display:grid; gap:0;}
  .tbl .th{background:var(--pastel-blue, var(--blue-soft)); font-family:var(--mono); font-weight:700; font-size:10.5px; text-transform:uppercase; letter-spacing:0.5px;}
  .tbl .th div, .tbl .tr div{padding:10px 12px;}
  .tbl .tr{border-top:1px solid var(--line);}
  .c4 .th, .c4 .tr{grid-template-columns:135px 1fr 82px 108px;}
  .c5 .th, .c5 .tr{grid-template-columns:120px 1fr 80px 92px 96px;}
  .c3 .th, .c3 .tr{grid-template-columns:180px 1fr 110px;}

  .attck{display:grid; grid-template-columns:1fr; gap:2px; background:var(--ink); border:2px solid var(--ink); border-radius:0; overflow:hidden; margin:18px 0; max-width:72ch;}
  .attck .r{background:var(--paper); padding:13px 16px; display:grid; grid-template-columns:104px 1fr; gap:14px; align-items:baseline;}
  .attck .tid{font-family:var(--mono); font-weight:700; font-size:12px; color:var(--amber);}
  .attck .tn{font-size:12.5px;}
  .attck .tn b{display:block; font-size:13px; margin-bottom:2px;}
  .attck .tn span{color:var(--ink-soft); font-size:12px;}

  .chk{list-style:none; margin:18px 0; max-width:72ch;}
  .chk li{display:flex; gap:12px; padding:11px 0; border-bottom:1px solid var(--line); font-size:13px;}
  .chk li:last-child{border-bottom:none;}
  .chk .n{font-family:var(--mono); font-weight:700; color:var(--amber); flex-shrink:0;}

  .diagram-box{color:var(--ink); border:2px solid var(--ink); border-radius:0; padding:22px; margin:24px 0; max-width:72ch; background:var(--paper-2);}
  .diagram-box .cap{font-size:11px; color:var(--ink-soft); text-align:center; margin-top:12px; letter-spacing:0.2px;}
  .diagram-box .svg-scroll{overflow-x:auto; -webkit-overflow-scrolling:touch;}
  .diagram-box svg{height:auto; display:block;}
  @media (min-width:640px){ .diagram-box svg{width:100%;} }
  @media (max-width:639px){ .diagram-box{padding:16px 12px;} .diagram-box svg{width:auto; min-width:540px;} }
  .scroll-hint{display:none; font-size:11px; color:var(--ink-soft); margin-bottom:8px;}

  pre{background:var(--paper-2); border:2px solid var(--ink); border-radius:0; padding:16px 18px; overflow-x:auto; font-size:12.5px; line-height:1.6; margin:14px 0; max-width:72ch;}
  pre code{background:none; border:none; padding:0; white-space:pre;}

  .src-cat{font-family:var(--display); font-weight:400; font-size:13px; letter-spacing:-0.1px; margin:26px 0 8px; color:var(--amber);}
  .src-cat:first-of-type{margin-top:14px;}
  .src{list-style:none; max-width:72ch; counter-reset:none;}
  .src li{font-size:11.5px; padding:7px 0; border-bottom:1px solid var(--line); color:var(--ink-soft); display:grid; grid-template-columns:34px 1fr; gap:10px;}
  .src li:last-child{border-bottom:none;}
  .src .id{color:var(--amber); font-weight:700; font-size:10.5px; padding-top:1px;}
  .src a{color:var(--ink); text-decoration:underline; text-decoration-color:var(--line); overflow-wrap:anywhere;}
  .src a:hover{color:var(--amber); text-decoration-color:var(--amber);}
  .src .tag{color:var(--ink-soft); font-size:10px; text-transform:uppercase; letter-spacing:0.5px;}

  .disclaimer{font-size:12px; color:var(--ink-soft); font-style:italic; margin-top:36px; padding-top:18px; border-top:2px dashed var(--line); max-width:72ch;}

  .next-post{border-top:var(--bw) solid var(--ink); padding:40px 32px; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px;}
  .next-post a{text-decoration:none; color:var(--ink); font-size:13px; font-weight:700;}
  .next-post a:hover{color:var(--amber);}
  footer{text-align:center; padding:30px; font-family:var(--mono); font-size:11px; color:var(--paper); letter-spacing:1.2px; background:var(--ink);}

  @media (max-width:700px){
    .nav-links{display:none;}
    .burger{display:flex;}
    .mobile-menu{display:block;}
    .nav-in{padding:16px 20px;}
    .article-head{padding:26px 16px 22px;}
    .article-body{padding:26px 16px;}
    .article-body h2{margin:40px 0 6px; font-size:20px;}
    h1.title{font-size:clamp(22px,7vw,30px);}
    .toc ol{grid-template-columns:1fr;}
    .scroll-hint{display:block;}
    .tbl{border:none; background:none;}
    .tbl .th{display:none;}
    .tbl .tr{display:block; grid-template-columns:none; border:2px solid var(--ink); border-radius:0; background:var(--paper); padding:12px 14px; margin-bottom:10px;}
    .tbl .tr div{padding:6px 0; border-bottom:1px dashed var(--line);}
    .tbl .tr div:last-child{border-bottom:none; padding-bottom:0;}
    .tbl .tr div:first-child{padding-top:0;}
    .tbl .tr div::before{content:attr(data-l); display:block; font-family:var(--mono); font-size:9px; font-weight:700; letter-spacing:0.8px; text-transform:uppercase; color:var(--amber); margin-bottom:3px;}
    .attck .r{grid-template-columns:1fr; gap:4px;}
    .item{padding:16px;}
    .item .ih h4{font-size:15px;}
    pre{font-size:11px;}
    .src li{grid-template-columns:28px 1fr; gap:8px;}
    .next-post{padding:26px 16px; flex-direction:column; align-items:flex-start;}
  }