@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Noto+Sans+Devanagari:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');
:root{
  --font-sans:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono:"IBM Plex Mono", Consolas, Menlo, Monaco, "Courier New", monospace;

  --paper:#eef1f0; --paper-raised:#e4e9e7; --ink:#16232b; --muted:#526361;
  --accent:#1f7a6c; --accent-soft:#d7e8e3; --line:#c9d3cf; --code-bg:#e2e8e5;
  --sev-critical:#b5482f; --sev-critical-soft:#f3ded6;
  --vuln:#b5482f; --vuln-soft:#f3ded6; --fix:#1f7a6c; --fix-soft:#d7e8e3;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0f1716; --paper-raised:#152020; --ink:#e2ebe8; --muted:#93a3a0;
    --accent:#4fd6bd; --accent-soft:#173229; --line:#25322f; --code-bg:#132321;
    --sev-critical:#e59074; --sev-critical-soft:#31201a;
    --vuln:#e59074; --vuln-soft:#31201a; --fix:#4fd6bd; --fix-soft:#173229;
  }
}
:root[data-theme="dark"]{
  --paper:#0f1716; --paper-raised:#152020; --ink:#e2ebe8; --muted:#93a3a0;
  --accent:#4fd6bd; --accent-soft:#173229; --line:#25322f; --code-bg:#132321;
  --sev-critical:#e59074; --sev-critical-soft:#31201a;
  --vuln:#e59074; --vuln-soft:#31201a; --fix:#4fd6bd; --fix-soft:#173229;
}
*{box-sizing:border-box;}

/* Language-specific typography: Hindi (Kohinoor Devanagari with Noto Sans Devanagari / Outfit fallback) */
:lang(hi),
html[lang="hi"],
[lang="hi"] {
  --font-sans: "Kohinoor Devanagari", "Noto Sans Devanagari", "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: "Kohinoor Devanagari", "Noto Sans Devanagari", "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: "Kohinoor Devanagari", "Noto Sans Devanagari", "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;
}
html[lang="hi"] body, :lang(hi) body {
  font-family: var(--font-body);
}
html[lang="hi"] h1, html[lang="hi"] h2, html[lang="hi"] h3, html[lang="hi"] h4, html[lang="hi"] h5, html[lang="hi"] h6, html[lang="hi"] .nav a,
:lang(hi) h1, :lang(hi) h2, :lang(hi) h3, :lang(hi) h4, :lang(hi) h5, :lang(hi) h6, :lang(hi) .nav a {
  font-family: var(--font-heading);
}
html[lang="hi"] p, html[lang="hi"] .banner, html[lang="hi"] .crumb, html[lang="hi"] .eli5, html[lang="hi"] .keyterms, html[lang="hi"] .gotcha, html[lang="hi"] .cta, html[lang="hi"] .checklist, html[lang="hi"] .faq-item, html[lang="hi"] .tabrow, html[lang="hi"] .credit,
:lang(hi) p, :lang(hi) .banner, :lang(hi) .crumb, :lang(hi) .eli5, :lang(hi) .keyterms, :lang(hi) .gotcha, :lang(hi) .cta, :lang(hi) .checklist, :lang(hi) .faq-item, :lang(hi) .tabrow, :lang(hi) .credit {
  font-family: var(--font-body);
}
html[lang="hi"] p, :lang(hi) p {
  line-height: 1.75;
}
html[lang="hi"] h2.section, :lang(hi) h2.section {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: normal;
  text-transform: none;
}
html[lang="hi"] .kt-item dt, :lang(hi) .kt-item dt {
  font-family: var(--font-sans);
  font-weight: 700;
  min-width: 180px;
}

body{margin:0; background:var(--paper); color:var(--ink); font-family:var(--font-body); line-height:1.65;}
h1,h2,h3,.nav a{font-family:var(--font-heading);}
code,.mono,.badge,.tab{font-family:var(--font-mono);}

.page{max-width:760px; margin:0 auto; padding:32px 24px 100px;}

.banner{border:1px solid var(--sev-critical); background:var(--sev-critical-soft); color:var(--sev-critical);
  border-radius:6px; padding:10px 16px; font-family:var(--font-sans); font-size:12px;
  font-weight:600; margin-bottom:36px; letter-spacing:.02em;}

.crumb{font-size:12.5px; color:var(--muted); display:flex; gap:6px; align-items:center; margin-bottom:22px;}
.crumb a{color:var(--accent); text-decoration:none;}
.crumb .sep{color:var(--line);}

h1{font-size:clamp(26px,4vw,34px); font-weight:600; margin:0 0 14px; letter-spacing:-.01em; text-wrap:balance;}

.subrow{display:flex; align-items:center; gap:14px; flex-wrap:wrap; margin-bottom:34px;}
.badge{display:inline-flex; align-items:center; gap:6px; font-size:11px; font-weight:600; padding:4px 10px 4px 8px; border-radius:20px; background:var(--sev-critical-soft); color:var(--sev-critical); text-decoration:none;}
.badge .dot{width:7px; height:7px; border-radius:50%; background:var(--sev-critical);}
.cwe{font-size:12px; color:var(--muted);}
.credit{display:inline-flex; align-items:center; gap:7px; font-size:12px; color:var(--muted); border:1px solid var(--line); border-radius:20px; padding:4px 10px 4px 4px; font-family:var(--font-sans);}
.credit .av{width:16px; height:16px; border-radius:50%; background:var(--accent); display:inline-block;}

h2.section{font-size:13px; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color:var(--accent); margin:40px 0 14px;}
p{margin:0 0 15px; max-width:66ch; font-size:16px;}

.codepair{display:flex !important; flex-direction:column !important; gap:20px !important; margin:20px 0 30px !important; width:100% !important;}
.codepane{border-radius:6px; overflow:hidden; border:1px solid var(--line); width:100% !important; max-width:100% !important; box-sizing:border-box !important;}
.codepair .codepane{width:100% !important; max-width:100% !important; box-sizing:border-box !important;}
.codepane .ph{font-family:var(--font-sans); font-size:11px; font-weight:700; letter-spacing:.05em; padding:8px 14px;}
.codepane.vuln .ph{background:var(--vuln-soft); color:var(--vuln); border-bottom:1px solid var(--vuln);}
.codepane.fix .ph{background:var(--fix-soft); color:var(--fix); border-bottom:1px solid var(--fix);}
.codepane pre{margin:0; background:var(--code-bg); padding:16px; font-size:13px; line-height:1.7; overflow-x:auto; font-family:var(--font-mono); box-sizing:border-box;}
.codepane .cm{color:var(--muted);}
.diff-del{background:rgba(220,38,38,0.12); color:var(--vuln); display:block; margin:0 -16px; padding:2px 16px; border-left:3px solid var(--vuln);}
.diff-add{background:rgba(31,122,108,0.14); color:var(--fix); display:block; margin:0 -16px; padding:2px 16px; border-left:3px solid var(--fix); font-weight:600;}

.loc-bar{display:flex; align-items:center; gap:6px; flex-wrap:wrap; margin:16px 0 26px; padding:8px 12px; background:var(--paper-raised); border:1px solid var(--line); border-radius:6px;}
.loc-label{font-family:var(--font-sans); font-size:11.5px; font-weight:700; color:var(--muted); text-transform:uppercase; letter-spacing:0.04em; margin-right:4px;}
.loc-pill{font-family:var(--font-mono); font-size:11.5px; padding:3px 8px; border-radius:4px; border:1px solid var(--line); color:var(--ink); text-decoration:none; background:var(--paper); transition:all 0.15s ease;}
.loc-pill:hover{border-color:var(--accent); color:var(--accent);}
.loc-pill.on{background:var(--accent); color:var(--paper); border-color:var(--accent); font-weight:600;}

.term{color:var(--accent); text-decoration:underline; text-decoration-color:var(--line); text-underline-offset:2px;}

.gotcha{border-left:3px solid var(--accent); background:var(--paper-raised); border-radius:0 6px 6px 0; padding:14px 18px; margin:14px 0;}
.gotcha b{display:block; font-family:var(--font-sans); font-size:13px; margin-bottom:4px;}
.gotcha p{font-size:14px; margin:0; max-width:none;}

.cta{border:1px solid var(--line); border-radius:6px; padding:18px 20px; margin-top:44px; font-family:var(--font-sans); font-size:13.5px; color:var(--muted); display:flex; justify-content:space-between; align-items:center; gap:12px; flex-wrap:wrap;}
.cta a{color:var(--accent); text-decoration:none; font-weight:600;}

.eli5{border:1px solid var(--accent); background:var(--accent-soft); border-radius:6px; padding:16px 20px; margin-bottom:8px;}
.eli5 .lbl{font-family:var(--font-sans); font-size:10.5px; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--accent); margin-bottom:6px;}
.eli5 p{font-size:15px; margin:0; max-width:none; color:var(--ink);}

.keyterms{border:1px solid var(--line); border-radius:6px; padding:14px 18px; margin:0 0 8px; font-family:var(--font-sans);}
.keyterms .lbl{font-size:10.5px; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--muted); margin-bottom:8px;}
.kt-item{display:flex; gap:10px; padding:6px 0; font-size:13px; border-top:1px solid var(--line);}
.kt-item:first-child{border-top:none;}
.kt-item dt{flex:0 0 auto; font-family:var(--font-mono); color:var(--accent); font-weight:600; min-width:150px;}
.kt-item dd{margin:0; color:var(--ink); font-family:var(--font-body);}

.impact{border-left:3px solid var(--muted); background:var(--paper-raised); border-radius:0 6px 6px 0; padding:14px 18px; margin:0 0 26px;}
.impact p{font-size:14.5px; margin:0; max-width:none;}
.impact cite{font-style:normal; color:var(--muted); font-size:12px; display:block; margin-top:8px; font-family:var(--font-sans);}

.detect{background:var(--code-bg); border:1px solid var(--line); border-radius:6px; padding:14px 18px; margin:14px 0;}
.detect code{display:block; font-family:var(--font-mono); font-size:12.5px; padding:4px 0; color:var(--ink);}
.detect .note{font-family:var(--font-sans); font-size:12px; color:var(--muted); margin-top:8px;}

.checklist{list-style:none; margin:14px 0; padding:0; border:1px solid var(--line); border-radius:6px; overflow:hidden;}
.checklist li{display:flex; gap:12px; padding:12px 16px; font-size:14.5px; border-top:1px solid var(--line); align-items:flex-start; font-family:var(--font-sans);}
.checklist li:first-child{border-top:none;}
.checklist li:nth-child(odd){background:var(--paper-raised);}
.checklist .ck{min-width:22px; height:22px; border-radius:50%; background:var(--accent-soft); color:var(--accent); display:inline-flex; align-items:center; justify-content:center; font-size:11.5px; font-weight:700; flex:0 0 auto; margin-top:2px;}

.faq{margin:14px 0;}
.faq-item{border-top:1px solid var(--line); padding:14px 0;}
.faq-item:first-child{border-top:none;}
.faq-item .q{font-family:var(--font-sans); font-weight:600; font-size:14.5px; margin-bottom:6px;}
.faq-item .a{font-size:14px; margin:0; max-width:none; color:var(--muted);}

.refs{list-style:none; margin:14px 0; padding:0; font-size:13px;}
.refs li{padding:6px 0; border-top:1px solid var(--line);}
.refs li:first-child{border-top:none;}
.refs a{color:var(--accent);}

.switchers{margin-top:34px; border-top:1px solid var(--line); padding-top:22px;}
.switchers .tabrow:first-child{display:none !important;}
.tabrow{display:flex; gap:6px; flex-wrap:wrap; align-items:center; margin-bottom:12px;}
.tabrow .lbl{font-family:var(--font-sans); font-size:12px; color:var(--muted); margin-right:6px; flex:0 0 auto;}
.tab{font-size:12px; padding:5px 12px; border-radius:6px; border:1px solid var(--line); text-decoration:none; color:var(--ink);}
.tab.active{background:var(--accent); border-color:var(--accent); color:var(--paper); font-weight:600;}
.tab.pending{color:var(--muted); opacity:.45; cursor:default;}
.tab.na{color:var(--muted); opacity:.3; cursor:default; text-decoration:line-through;}

.loc-bar{display:none !important;}

/* Code pane header & copy button */
.codepane{position:relative;}
.codepane .ph{display:flex; justify-content:space-between; align-items:center;}
.copy-btn{background:transparent; border:1px solid currentColor; border-radius:4px; font-family:var(--font-sans); font-size:10px; font-weight:600; padding:2px 8px; cursor:pointer; color:inherit; opacity:0.75; transition:opacity 0.15s;}
.copy-btn:hover{opacity:1;}

/* Language notification banner */
.lang-toast{background:var(--accent-soft); border:1px solid var(--accent); color:var(--ink); padding:10px 18px; border-radius:6px; margin-bottom:20px; font-family:var(--font-sans); font-size:13px; display:flex; justify-content:space-between; align-items:center; gap:10px;}
.lang-toast a.action{color:var(--accent); font-weight:700; text-decoration:none; margin-left:8px;}
.lang-toast a.action:hover{text-decoration:underline;}
.lang-toast .close-toast{background:none; border:none; color:var(--muted); font-size:18px; line-height:1; cursor:pointer; padding:0 4px;}

/* Matrix card actions & hide redundant in-body language button grids */
.matrix-card .dirgrid{display:none !important;}
.matrix-card-action{margin-top:16px; display:flex; align-items:center;}
.btn-vuln-cta{display:inline-flex; align-items:center; gap:6px; padding:8px 16px; border-radius:6px; background:var(--accent); color:var(--paper); font-family:var(--font-sans); font-size:13.5px; font-weight:600; text-decoration:none; transition:all 0.15s ease;}
.btn-vuln-cta:hover{background:var(--ink); color:var(--paper); transform:translateY(-1px);}

/* Directory search */
/* Global Navigation Header (Two-Row Enterprise Architecture) */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  width:100%;
  background:rgba(238, 241, 240, 0.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
:root[data-theme="dark"] .site-header,
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .site-header{
    background:rgba(15, 23, 22, 0.95);
  }
}

/* Row 1: Brand & Developer Controls */
.site-header-top{
  border-bottom:1px solid var(--line);
}
.site-header-top-inner{
  max-width:980px;
  margin:0 auto;
  padding:7px 20px;
  display:flex;
  justify-content:center;
  align-items:center;
  gap:24px;
}

.site-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  text-decoration:none;
  letter-spacing:-.015em;
  flex:0 0 auto;
}
.site-brand:hover{color:var(--accent);}
.site-brand-dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent);
  display:inline-block;
  box-shadow:0 0 0 2px var(--accent-soft);
}
.site-badge-tag{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:700;
  padding:1px 5px;
  border-radius:4px;
  background:var(--accent-soft);
  color:var(--accent);
  letter-spacing:0.04em;
  margin-left:2px;
}

.header-controls{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
}

/* Compact Top Search Bar in Row 1 */
.header-search-wrap{
  position:relative;
  display:inline-flex;
  align-items:center;
  width:160px;
  transition:width 0.2s ease;
}
.header-search-wrap:focus-within{
  width:220px;
}
.header-search-icon{
  position:absolute;
  left:10px;
  color:var(--muted);
  pointer-events:none;
}
.header-search-input{
  width:100%;
  padding:5px 28px 5px 30px;
  font-family:var(--font-sans);
  font-size:12.5px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--paper-raised);
  color:var(--ink);
  transition:all 0.18s ease;
  box-sizing:border-box;
}
.header-search-input:focus{
  outline:none;
  border-color:var(--accent);
  background:var(--paper);
  box-shadow:0 0 0 2px var(--accent-soft);
}
.header-search-kbd{
  position:absolute;
  right:7px;
  font-family:var(--font-mono);
  font-size:10px;
  padding:1px 5px;
  border-radius:3px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--muted);
  pointer-events:none;
}

/* Row 2: Navigation Taxonomy Rail & Stats */
.site-header-bottom{
  background:transparent;
}
.site-header-bottom-inner{
  max-width:980px;
  margin:0 auto;
  padding:4px 20px;
  display:flex;
  justify-content:center;
  align-items:center;
  gap:20px;
}

.site-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:2px;
  font-family:var(--font-sans);
}
.nav-link{
  font-size:13px;
  font-weight:600;
  color:var(--muted);
  text-decoration:none;
  padding:5px 11px;
  border-radius:6px;
  transition:all 0.15s ease;
  display:inline-flex;
  align-items:center;
  gap:5px;
  white-space:nowrap;
}
.nav-link:hover{
  color:var(--ink);
  background:var(--paper-raised);
}
.nav-link.active{
  color:var(--accent);
  background:var(--accent-soft);
  font-weight:700;
}

.nav-item{position:relative;}
.nav-caret{font-size:9px; opacity:0.7; transition:transform 0.15s ease;}
.nav-item:hover .nav-caret{transform:rotate(180deg);}

.nav-dropdown{
  display:none;
  position:absolute;
  top:calc(100% + 6px);
  left:50%;
  transform:translateX(-50%);
  background:var(--paper-raised);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px;
  box-shadow:0 12px 36px rgba(0,0,0,0.18);
  z-index:1100;
  min-width:280px;
}
.nav-item:hover .nav-dropdown, 
.nav-item:focus-within .nav-dropdown,
.nav-dropdown.show{
  display:block;
}
.nav-dropdown-btn{
  background:transparent;
  border:none;
  cursor:pointer;
  font-family:inherit;
}

.nav-mega-dropdown{
  width:780px;
  max-width:calc(100vw - 32px);
  padding:18px 20px 14px;
}
.nav-mega-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:16px;
}
.nav-cat-col{
  display:flex;
  flex-direction:column;
  min-width:0;
}
.nav-cat-header{
  display:flex;
  align-items:center;
  gap:6px;
  font-size:11.5px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.06em;
  color:var(--accent);
  padding-bottom:8px;
  margin-bottom:6px;
  border-bottom:1px solid var(--line);
}
.nav-cat-links{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.nav-dropdown-link{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:6px 8px;
  font-size:12.5px;
  font-weight:600;
  color:var(--ink);
  text-decoration:none;
  border-radius:6px;
  transition:all 0.12s ease;
  line-height:1.35;
}
.nav-dropdown-link:hover{
  background:var(--paper);
  color:var(--accent);
  transform:translateX(2px);
}
.nav-dropdown-link.current{
  color:var(--accent);
  background:var(--accent-soft);
  font-weight:700;
}
.nav-cat-more{
  color:var(--accent);
  font-size:11.5px;
  font-weight:600;
  margin-top:6px;
  padding:4px 8px;
  border-top:1px dashed var(--line);
  opacity:0.9;
}
.nav-cat-more:hover{
  opacity:1;
  text-decoration:underline;
  transform:none;
}
.badge-mini{
  font-family:var(--font-mono);
  font-size:10px;
  color:var(--muted);
  font-weight:500;
  background:var(--paper);
  padding:1px 5px;
  border-radius:4px;
  border:1px solid var(--line);
  flex-shrink:0;
}
.nav-dropdown-bottom-bar{
  margin-top:16px;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:12px;
}
.nav-bottom-info{
  color:var(--muted);
  font-size:11.5px;
}
.nav-bottom-link{
  color:var(--accent);
  font-weight:700;
  text-decoration:none;
}
.nav-bottom-link:hover{
  text-decoration:underline;
}

.nav-extra-info{
  font-family:var(--font-sans);
  font-size:11.5px;
  color:var(--muted);
  flex:0 0 auto;
}
.nav-stat-link{
  color:var(--muted);
  text-decoration:none;
  transition:color 0.15s ease;
}
.nav-stat-link b{
  font-family:var(--font-mono);
  color:var(--ink);
}
.nav-stat-link:hover{color:var(--accent);}

/* Mobile & Tablet Responsiveness */
@media (max-width: 768px){
  .site-header-top-inner{padding:6px 14px; gap:10px; justify-content:center; flex-wrap:wrap;}
  .header-search-wrap{max-width:180px;}
  .header-search-input{font-size:12px; padding:5px 26px 5px 28px;}
  .site-header-bottom-inner{padding:3px 14px; justify-content:center; flex-wrap:wrap; gap:8px;}
  .site-nav{width:100%; overflow-x:auto; padding-bottom:3px; -webkit-overflow-scrolling:touch; justify-content:center;}
  .nav-link{font-size:12px; padding:4px 8px;}
  .nav-dropdown{
    position:fixed;
    top:auto;
    left:10px;
    right:10px;
    transform:none;
    width:auto;
    max-height:80vh;
    overflow-y:auto;
  }
  .nav-mega-grid{
    grid-template-columns:repeat(2, 1fr);
    gap:14px;
  }
  .nav-extra-info{display:none;}
}
@media (max-width: 520px){
  .header-search-wrap{display:none;}
  .curr-stack-label{display:none;}
  .nav-mega-grid{
    grid-template-columns:1fr;
    gap:12px;
  }
}

/* ==========================================================================
   Language Selector (User-Centric Global Switcher)
   ========================================================================== */

.lang-selector-wrap{position:relative;}
.nav-lang-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 11px;
  border-radius:6px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:12.5px;
  font-weight:600;
  cursor:pointer;
  transition:all 0.15s ease;
  user-select:none;
}
.nav-lang-btn:hover{
  border-color:var(--accent);
  color:var(--accent);
  background:var(--paper-raised);
}
.nav-lang-btn svg{color:var(--accent); flex-shrink:0;}
.curr-lang-label{font-weight:600; letter-spacing:-0.01em;}
.curr-lang-code{
  font-family:var(--font-mono);
  font-size:10px;
  padding:1px 5px;
  border-radius:3px;
  background:var(--accent-soft);
  color:var(--accent);
  font-weight:700;
  margin-left:2px;
}

/* Modal Backdrop */
.lang-backdrop{
  position:fixed;
  top:0;
  left:0;
  right:0;
  bottom:0;
  background:rgba(15, 23, 42, 0.45);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
  z-index:2000;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:16px;
  opacity:0;
  visibility:hidden;
  transition:opacity 0.2s ease, visibility 0.2s ease;
}
.lang-backdrop.open{
  opacity:1;
  visibility:visible;
}

/* Modal Dialog */
.lang-modal{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:0 20px 48px rgba(0,0,0,0.22);
  width:100%;
  max-width:580px;
  max-height:85vh;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  transform:scale(0.96) translateY(8px);
  transition:transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  font-family:var(--font-sans);
}
.lang-backdrop.open .lang-modal{
  transform:scale(1) translateY(0);
}

.lang-modal-header{
  padding:18px 22px 14px;
  border-bottom:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:12px;
  background:var(--paper-raised);
}
.lang-modal-title{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  margin:0 0 4px;
  display:flex;
  align-items:center;
  gap:8px;
}
.lang-modal-subtitle{
  font-size:12.5px;
  color:var(--muted);
  margin:0;
}
.lang-close-btn{
  background:none;
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--muted);
  font-size:18px;
  line-height:1;
  padding:4px 8px;
  cursor:pointer;
  transition:all 0.15s ease;
}
.lang-close-btn:hover{
  border-color:var(--accent);
  color:var(--ink);
  background:var(--paper);
}

/* Filter Input */
.lang-search-box{
  padding:12px 22px;
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.lang-search-input{
  width:100%;
  padding:8px 12px;
  font-family:var(--font-sans);
  font-size:13px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--paper-raised);
  color:var(--ink);
  box-sizing:border-box;
}
.lang-search-input:focus{
  outline:none;
  border-color:var(--accent);
  background:var(--paper);
}

/* Language Cards Grid */
.lang-list{
  padding:14px 22px;
  overflow-y:auto;
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(240px, 1fr));
  gap:10px;
  max-height:400px;
}
.lang-card{
  border:1px solid var(--line);
  border-radius:8px;
  padding:12px 14px;
  background:var(--paper);
  text-decoration:none;
  color:var(--ink);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  cursor:pointer;
  transition:all 0.15s ease;
}
.lang-card:hover{
  border-color:var(--accent);
  background:var(--paper-raised);
  transform:translateY(-1px);
}
.lang-card.active{
  border-color:var(--accent);
  background:var(--accent-soft);
}
.lang-card-main{display:flex; flex-direction:column; gap:2px;}
.lang-native-name{font-size:14px; font-weight:700; color:var(--ink);}
.lang-card.active .lang-native-name{color:var(--accent);}
.lang-meta-text{font-size:11.5px; color:var(--muted);}
.lang-badge-pill{
  font-family:var(--font-mono);
  font-size:10.5px;
  font-weight:600;
  padding:3px 7px;
  border-radius:4px;
  border:1px solid var(--line);
  color:var(--muted);
  flex-shrink:0;
}
.lang-card.active .lang-badge-pill{
  background:var(--accent);
  border-color:var(--accent);
  color:var(--paper);
}

/* Feedback Box inside Modal */
.lang-feedback-box{
  margin:14px 22px;
  padding:16px 18px;
  border-radius:8px;
  background:var(--paper-raised);
  border:1px solid var(--line);
}
.lang-feedback-title{
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:6px;
}
.lang-feedback-desc{
  font-size:13px;
  color:var(--muted);
  margin:0 0 14px;
  line-height:1.5;
}
.lang-feedback-actions{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  align-items:center;
}
.btn-lang-action{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 13px;
  border-radius:6px;
  font-family:var(--font-sans);
  font-size:12.5px;
  font-weight:600;
  text-decoration:none;
  cursor:pointer;
  transition:all 0.15s ease;
}
.btn-lang-action.primary{
  background:var(--accent);
  border:1px solid var(--accent);
  color:var(--paper);
}
.btn-lang-action.primary:hover{
  filter:brightness(1.1);
}
.btn-lang-action.secondary{
  background:var(--paper);
  border:1px solid var(--line);
  color:var(--ink);
}
.btn-lang-action.secondary:hover{
  border-color:var(--accent);
  color:var(--accent);
}

/* Modal Footer */
.lang-modal-footer{
  padding:12px 22px;
  border-top:1px solid var(--line);
  background:var(--paper-raised);
  font-size:12px;
  color:var(--muted);
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.lang-modal-footer a{color:var(--accent); text-decoration:none; font-weight:600;}
.lang-modal-footer a:hover{text-decoration:underline;}

/* Hide old in-body language and tech stack selectors (now centralized in sticky header) */
.loc-bar{display:none !important;}
.switchers .tabrow:first-child{display:none !important;}

@media (max-width: 640px){
  .lang-list{grid-template-columns:1fr; max-height:50vh;}
  .curr-lang-label{display:none;}
  .curr-lang-code{display:inline-block;}
}

/* ==========================================================================
   Tech Stack / Programming Language Selector
   ========================================================================== */

.nav-stack-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 11px;
  border-radius:6px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:12.5px;
  font-weight:600;
  cursor:pointer;
  transition:all 0.15s ease;
  user-select:none;
}
.nav-stack-btn:hover{
  border-color:var(--accent);
  color:var(--accent);
  background:var(--paper-raised);
}
.curr-stack-icon{font-size:13px; line-height:1;}
.curr-stack-label{font-weight:600; letter-spacing:-0.01em;}

/* Stack Modal Backdrop */
.stack-backdrop{
  position:fixed;
  top:0;
  left:0;
  right:0;
  bottom:0;
  background:rgba(15, 23, 42, 0.45);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
  z-index:2000;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:16px;
  opacity:0;
  visibility:hidden;
  transition:opacity 0.2s ease, visibility 0.2s ease;
}
.stack-backdrop.open{
  opacity:1;
  visibility:visible;
}

/* Stack Modal Dialog */
.stack-modal{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:0 20px 48px rgba(0,0,0,0.22);
  width:100%;
  max-width:580px;
  max-height:85vh;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  transform:scale(0.96) translateY(8px);
  transition:transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  font-family:var(--font-sans);
}
.stack-backdrop.open .stack-modal{
  transform:scale(1) translateY(0);
}

.stack-modal-header{
  padding:18px 22px 14px;
  border-bottom:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:12px;
  background:var(--paper-raised);
}
.stack-modal-title{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  margin:0 0 4px;
  display:flex;
  align-items:center;
  gap:8px;
}
.stack-modal-subtitle{
  font-size:12.5px;
  color:var(--muted);
  margin:0;
}
.stack-close-btn{
  background:none;
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--muted);
  font-size:18px;
  line-height:1;
  padding:4px 8px;
  cursor:pointer;
  transition:all 0.15s ease;
}
.stack-close-btn:hover{
  border-color:var(--accent);
  color:var(--ink);
  background:var(--paper);
}

.stack-search-box{
  padding:12px 22px;
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.stack-search-input{
  width:100%;
  padding:8px 12px;
  font-family:var(--font-sans);
  font-size:13px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--paper-raised);
  color:var(--ink);
  box-sizing:border-box;
}
.stack-search-input:focus{
  outline:none;
  border-color:var(--accent);
  background:var(--paper);
}

.stack-list{
  padding:14px 22px;
  overflow-y:auto;
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(240px, 1fr));
  gap:10px;
  max-height:400px;
}
.stack-card{
  border:1px solid var(--line);
  border-radius:8px;
  padding:12px 14px;
  background:var(--paper);
  text-decoration:none;
  color:var(--ink);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  cursor:pointer;
  transition:all 0.15s ease;
}
.stack-card:hover{
  border-color:var(--accent);
  background:var(--paper-raised);
  transform:translateY(-1px);
}
.stack-card.active{
  border-color:var(--accent);
  background:var(--accent-soft);
}
.stack-card-main{display:flex; flex-direction:column; gap:2px;}
.stack-card-top{display:flex; align-items:center; gap:6px;}
.stack-name{font-size:14px; font-weight:700; color:var(--ink);}
.stack-card.active .stack-name{color:var(--accent);}
.stack-desc{font-size:11.5px; color:var(--muted); line-height:1.3;}
.stack-badge-pill{
  font-family:var(--font-mono);
  font-size:10.5px;
  font-weight:600;
  padding:3px 7px;
  border-radius:4px;
  border:1px solid var(--line);
  color:var(--muted);
  flex-shrink:0;
}
.stack-card.active .stack-badge-pill{
  background:var(--accent);
  border-color:var(--accent);
  color:var(--paper);
}

.stack-modal-footer{
  padding:12px 22px;
  border-top:1px solid var(--line);
  background:var(--paper-raised);
  font-size:12px;
  color:var(--muted);
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.stack-modal-footer a{color:var(--accent); text-decoration:none; font-weight:600;}
.stack-modal-footer a:hover{text-decoration:underline;}

@media (max-width: 640px){
  .stack-list{grid-template-columns:1fr; max-height:50vh;}
}

/* ==========================================================================
   Site Footer
   ========================================================================== */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--paper-raised);
  padding:48px 24px 32px;
  margin-top:64px;
  font-family:var(--font-sans);
  color:var(--muted);
  font-size:13px;
}
.site-footer-inner{
  max-width:980px;
  margin:0 auto;
}
.footer-top-grid{
  display:grid;
  grid-template-columns:1.4fr 1.2fr 1.2fr 1fr;
  gap:32px;
  margin-bottom:36px;
}
.footer-col{
  display:flex;
  flex-direction:column;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:12px;
}
.footer-desc{
  font-size:13px;
  line-height:1.55;
  color:var(--muted);
  margin:0 0 16px;
}
.footer-meta-stats{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.footer-stat-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  border-radius:6px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink);
  font-size:11.5px;
  text-decoration:none;
}
.footer-stat-badge b{
  font-family:var(--font-mono);
  color:var(--accent);
}
.footer-heading{
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.06em;
  color:var(--ink);
  margin:0 0 14px;
}
.footer-tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.footer-tag-link{
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:3px 8px;
  border-radius:5px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink);
  font-size:12px;
  font-weight:500;
  text-decoration:none;
  transition:all 0.15s ease;
}
.footer-tag-link:hover{
  border-color:var(--accent);
  color:var(--accent);
  background:var(--paper-raised);
}
.footer-tag-icon{
  font-size:11px;
}
.footer-lang-flag{
  font-family:var(--font-mono);
  font-size:9.5px;
  font-weight:700;
  padding:1px 4px;
  border-radius:3px;
  background:var(--accent-soft);
  color:var(--accent);
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.footer-links a{
  color:var(--muted);
  text-decoration:none;
  font-size:13px;
  transition:color 0.15s ease;
}
.footer-links a:hover{
  color:var(--accent);
}
.footer-bottom-bar{
  border-top:1px solid var(--line);
  padding-top:20px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  font-size:12px;
  color:var(--muted);
  flex-wrap:wrap;
}
.footer-bottom-bar a{
  color:var(--accent);
  text-decoration:none;
  font-weight:600;
}
.footer-bottom-bar a:hover{
  text-decoration:underline;
}

@media (max-width: 860px){
  .footer-top-grid{
    grid-template-columns:1fr 1fr;
    gap:28px;
  }
}
@media (max-width: 540px){
  .footer-top-grid{
    grid-template-columns:1fr;
    gap:24px;
  }
  .site-footer{
    padding:32px 16px 24px;
  }
}




/* ==========================================================================
   10/10 UPGRADE: THEME TOGGLE, CMD+K PALETTE, CHECKLISTS, CODE & UX POLISH
   ========================================================================== */

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

/* 1. Top Reading Progress Bar */
#reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent);
  z-index: 9999;
  transition: width 0.08s ease-out;
  pointer-events: none;
}

/* 2. Header Theme Toggle Button */
.nav-theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s ease;
}
.nav-theme-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--paper);
}
.nav-theme-btn svg {
  width: 14px;
  height: 14px;
}

/* 3. Tactile Code Copy Button */
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family:var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  cursor: pointer;
  color: var(--ink);
  transition: all 0.15s ease;
}
.copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.copy-btn.copied {
  background: var(--fix-soft) !important;
  border-color: var(--fix) !important;
  color: var(--fix) !important;
}

/* 4. Heading Anchor Permalinks */
.heading-with-anchor {
  position: relative;
}
.heading-anchor {
  display: inline-block;
  opacity: 0;
  margin-left: 8px;
  color: var(--muted);
  text-decoration: none;
  font-family:var(--font-mono);
  font-size: 0.85em;
  font-weight: 400;
  transition: all 0.15s ease;
  cursor: pointer;
}
.heading-with-anchor:hover .heading-anchor {
  opacity: 0.7;
}
.heading-anchor:hover {
  opacity: 1 !important;
  color: var(--accent);
}

/* 5. PR Review Checklist Exporter */
.checklist-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 18px;
  margin-bottom: 8px;
  flex-wrap: wrap;
  gap: 10px;
}
.checklist-header-title {
  font-family:var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}
.copy-checklist-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family:var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s ease;
}
.copy-checklist-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--paper);
}
.copy-checklist-btn.copied {
  background: var(--fix-soft) !important;
  border-color: var(--fix) !important;
  color: var(--fix) !important;
}

/* 6. Global Command Palette Modal */
.cmd-palette-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 10000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 80px 16px 20px;
}
.cmd-palette-backdrop.open {
  display: flex;
}
.cmd-palette-dialog {
  width: 100%;
  max-width: 620px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 20px 48px rgba(0,0,0,0.22);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 80vh;
  animation: cmdSlideDown 0.15s ease-out;
}
@keyframes cmdSlideDown {
  from { opacity: 0; transform: translateY(-10px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.cmd-input-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--paper-raised);
}
.cmd-search-icon {
  color: var(--muted);
  flex: 0 0 auto;
}
.cmd-input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--ink);
  font-family:var(--font-sans);
  font-size: 15px;
  outline: none;
}
.cmd-input::placeholder {
  color: var(--muted);
}
.cmd-esc-kbd {
  font-family:var(--font-mono);
  font-size: 10.5px;
  padding: 2px 6px;
  border-radius: 3px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--muted);
  cursor: pointer;
}
.cmd-results {
  overflow-y: auto;
  padding: 10px;
  flex: 1;
  max-height: 440px;
}
.cmd-group-label {
  font-family:var(--font-sans);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 8px 10px 4px;
}
.cmd-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--ink);
  text-decoration: none;
  font-family:var(--font-sans);
  font-size: 13.5px;
  cursor: pointer;
  transition: all 0.1s ease;
}
.cmd-item.active, .cmd-item:hover {
  background: var(--accent-soft);
  color: var(--accent);
}
.cmd-item-left {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cmd-item-icon {
  font-size: 14px;
  flex: 0 0 auto;
}
.cmd-item-title {
  font-weight: 600;
}
.cmd-item-badge {
  font-family:var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--paper);
  flex: 0 0 auto;
}
.cmd-no-results {
  padding: 28px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
  font-family:var(--font-sans);
}
.cmd-footer {
  border-top: 1px solid var(--line);
  padding: 9px 16px;
  background: var(--paper-raised);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11.5px;
  color: var(--muted);
  font-family:var(--font-sans);
}
.cmd-footer-keys {
  display: flex;
  gap: 10px;
}
.cmd-footer-keys kbd {
  font-family:var(--font-mono);
  font-size: 10px;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1px 4px;
  border-radius: 3px;
}

/* 7. Syntax Highlighting Tokens */
.tok-kw { color: #b5482f; font-weight: 600; }
.tok-str { color: #1f7a6c; }
.tok-fn { color: #2563eb; }
.tok-num { color: #d97706; }
.tok-comment { color: var(--muted); font-style: italic; }
:root[data-theme="dark"] .tok-kw { color: #f87171; }
:root[data-theme="dark"] .tok-str { color: #34d399; }
:root[data-theme="dark"] .tok-fn { color: #60a5fa; }
:root[data-theme="dark"] .tok-num { color: #fbbf24; }

/* 8. Reading Time & Toast Feedback */
.badge-readtime {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  color: var(--muted);
  font-family:var(--font-sans);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 3px 9px;
}
.toast-notification {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 18px;
  border-radius: 6px;
  font-family:var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  z-index: 10001;
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.2s ease;
  pointer-events: none;
}
.toast-notification.show {
  opacity: 1;
  transform: translateY(0);
}