/* ===========================================================================
   EWayBill.org — design system
   Palette: ink-navy authority · highway-marigold accent · valid-teal
   Type: Space Grotesk (display) · Poppins (body) · JetBrains Mono (numbers)
   Signature: the E-Way Bill "slip" card
   =========================================================================== */
:root{
  --navy:#0b1f3a; --navy-2:#11324f; --navy-3:#1c426b;
  --ink:#0b1f3a; --ink-2:#11324f;
  --paper:#f7f9fc; --paper-2:#eef2f8; --white:#fff;
  --line:#d8e0ec; --line-2:#c5d0e0;
  --marigold:#f6a623; --marigold-d:#d8860b; --marigold-soft:#fef3dc;
  --teal:#0f9d8f; --teal-soft:#dff5f1;
  --warn:#c0392b; --warn-soft:#fbe9e7;
  --muted:#5b6b82; --muted-2:#7c899c;
  --radius:14px; --radius-s:9px;
  --shadow:0 1px 2px rgba(11,31,58,.06),0 8px 28px rgba(11,31,58,.07);
  --shadow-s:0 1px 2px rgba(11,31,58,.06),0 4px 14px rgba(11,31,58,.06);
  --maxw:1160px; --gap:clamp(18px,3vw,34px);
  --display:"Space Grotesk",system-ui,sans-serif;
  --body:"Poppins",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--paper);
  font-size:17px;line-height:1.68;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy-3);text-decoration:none}
a:hover{color:var(--marigold-d)}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(16px,4vw,30px)}
h1,h2,h3,h4{font-family:var(--display);color:var(--ink);line-height:1.18;font-weight:600;letter-spacing:-.01em}
:focus-visible{outline:3px solid var(--marigold);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:200}
.skip-link:focus{left:8px;top:8px}

/* ---------- header / nav -------------------------------------------------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:66px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;
  font-size:1.18rem;color:var(--ink);letter-spacing:-.02em}
.brand-mark{display:grid;place-items:center;width:38px;height:34px;flex:0 0 auto;border-radius:9px;
  background:linear-gradient(135deg,var(--navy),var(--navy-3));color:var(--marigold);
  font-size:.78rem;font-weight:700;letter-spacing:.02em}
.brand-text b{color:var(--ink)}
.brand-text i{color:var(--marigold-d);font-style:normal}
.primary-nav{margin-left:auto}
.primary-nav>ul{display:flex;gap:2px;list-style:none;margin:0;padding:0}
.primary-nav li{position:relative}
.primary-nav>ul>li>a{display:flex;align-items:center;gap:5px;padding:10px 13px;border-radius:var(--radius-s);
  color:var(--ink-2);font-weight:500;font-size:.95rem}
.primary-nav>ul>li>a:hover,.has-sub:focus-within>a{background:var(--paper-2);color:var(--ink)}
.caret{font-size:.66rem;opacity:.6;transition:transform .2s}
.has-sub:hover .caret,.has-sub:focus-within .caret{transform:rotate(180deg)}
.submenu{position:absolute;top:calc(100% + 6px);left:0;min-width:240px;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px;
  display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateY(6px);
  transition:.16s ease;z-index:120}
.has-sub:hover .submenu,.has-sub:focus-within .submenu{opacity:1;visibility:visible;transform:none}
.submenu a{padding:9px 11px;border-radius:8px;font-size:.92rem;color:var(--ink-2)}
.submenu a:hover{background:var(--marigold-soft);color:var(--ink)}

/* ---------- search -------------------------------------------------------- */
.header-search{position:relative;margin-left:4px}
.header-search input,.hero-search input{font:inherit;font-size:.92rem;padding:9px 14px;
  border:1px solid var(--line-2);border-radius:999px;background:var(--white);min-width:180px;color:var(--ink)}
.header-search input:focus,.hero-search input:focus{outline:none;border-color:var(--marigold);
  box-shadow:0 0 0 3px var(--marigold-soft)}
.header-search button{position:absolute;right:4px;top:4px;bottom:4px;width:34px;border:0;border-radius:999px;
  background:var(--navy);color:#fff;cursor:pointer;font-size:.8rem}
.search-results{position:absolute;top:calc(100% + 8px);right:0;width:min(420px,86vw);background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:6px;
  max-height:60vh;overflow:auto;z-index:130}
.search-results a{display:block;padding:10px 12px;border-radius:9px;color:var(--ink)}
.search-results a:hover{background:var(--paper-2)}
.search-results b{display:block;font-family:var(--display);font-size:.95rem}
.search-results span{font-size:.8rem;color:var(--muted)}
.search-empty{padding:14px;color:var(--muted);font-size:.9rem}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-2);background:var(--white);
  border-radius:10px;cursor:pointer;position:relative;flex:0 0 auto}
.nav-toggle span{position:absolute;left:11px;width:22px;height:2px;background:var(--ink);transition:.2s;border-radius:2px}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* ---------- hero ---------------------------------------------------------- */
.hero{background:
   radial-gradient(1100px 500px at 82% -10%,rgba(246,166,35,.16),transparent 60%),
   linear-gradient(180deg,var(--navy) 0%,var(--navy-2) 100%);
  color:#eaf1fb;padding:clamp(40px,7vw,86px) 0;border-bottom:1px solid #0a1a30}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,5vw,60px);align-items:center}
.eyebrow{display:inline-block;font-family:var(--mono);font-size:.74rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--marigold);background:rgba(246,166,35,.1);
  border:1px solid rgba(246,166,35,.28);padding:6px 12px;border-radius:999px;margin-bottom:18px}
.hero-h1{font-size:clamp(2.1rem,4.6vw,3.5rem);color:#fff;margin:.1em 0 .35em;line-height:1.08}
.hero-sub{font-size:clamp(1rem,1.4vw,1.16rem);color:#b9c9df;max-width:46ch;margin:0 0 26px}
.hero-search{position:relative;display:flex;gap:8px;max-width:520px;margin-bottom:18px}
.hero-search input{flex:1;min-width:0;padding:14px 18px;font-size:1rem}
.hero-search>button{font:inherit;font-weight:600;border:0;border-radius:999px;cursor:pointer;
  padding:0 22px;background:var(--marigold);color:#231400}
.hero-search>button:hover{background:#ffb53d}
.hero-search .search-results{left:0;right:auto}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:16px}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-family:var(--display);
  padding:12px 20px;border-radius:999px;font-size:.96rem;transition:.16s;border:1px solid transparent}
.btn-primary{background:var(--marigold);color:#231400}
.btn-primary:hover{background:#ffb53d;color:#231400;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#eaf1fb;border-color:rgba(234,241,251,.32)}
.btn-ghost:hover{background:rgba(234,241,251,.08);color:#fff}
.hero-note{font-size:.84rem;color:#90a4c2;margin:6px 0 0}
.hero-note a{color:#cdd9ec;text-decoration:underline}
.hero-art{display:flex;justify-content:center}

/* ---------- signature: the slip card -------------------------------------- */
.slip{width:min(360px,90%);background:linear-gradient(180deg,#fffdf8,#fff);color:var(--ink);
  border-radius:16px;border:1px solid #eadfca;box-shadow:0 20px 50px rgba(0,0,0,.32),0 2px 0 #e7dcc6;
  padding:18px 18px 14px;position:relative;transform:rotate(-1.4deg)}
.slip-top{display:flex;align-items:center;justify-content:space-between;
  border-bottom:2px dashed var(--line-2);padding-bottom:12px;margin-bottom:12px}
.slip-top span:first-child{font-family:var(--display);font-weight:700;letter-spacing:.04em;color:var(--navy)}
.slip-qr{width:42px;height:42px;border-radius:7px;
  background:conic-gradient(from 0deg,#0b1f3a 90deg,transparent 0 180deg,#0b1f3a 0 270deg,transparent 0) 0 0/14px 14px,var(--navy);opacity:.92}
.slip-rows{display:grid;gap:8px}
.slip-row{display:flex;justify-content:space-between;gap:14px;font-size:.9rem}
.slip-row span{color:var(--muted)}
.slip-row b{font-family:var(--mono);font-weight:600;color:var(--navy)}
.slip-barcode{height:34px;margin-top:14px;border-radius:4px;
  background:repeating-linear-gradient(90deg,var(--ink) 0 2px,transparent 2px 4px,var(--ink) 4px 5px,transparent 5px 9px)}

/* ---------- layout -------------------------------------------------------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:var(--gap);
  padding-block:clamp(28px,5vw,52px);align-items:start}
.layout.no-aside{grid-template-columns:minmax(0,1fr)}
.article{min-width:0}
.sidebar{position:sticky;top:84px;display:grid;gap:18px}

/* ---------- breadcrumb + head + meta -------------------------------------- */
.breadcrumb{font-size:.84rem;color:var(--muted);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--muted)}.breadcrumb a:hover{color:var(--marigold-d)}
.bc-sep{opacity:.5}
.article-head h1{font-size:clamp(1.8rem,3.6vw,2.6rem);margin:.1em 0 .3em}
.lede{font-size:clamp(1.05rem,1.6vw,1.22rem);color:var(--muted);line-height:1.6;margin:0 0 22px;max-width:64ch}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:.85rem;color:var(--muted);
  border-block:1px solid var(--line);padding:12px 0;margin-bottom:28px}
.badge-fact{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--teal);
  background:var(--teal-soft);padding:4px 11px;border-radius:999px;font-size:.78rem}
.meta-line a{color:var(--ink-2);font-weight:500}

/* ---------- article typography -------------------------------------------- */
.article-body h2{font-size:clamp(1.4rem,2.4vw,1.85rem);margin:2em 0 .6em;scroll-margin-top:84px}
.article-body h2::before{content:"";display:block;width:46px;height:3px;border-radius:3px;
  background:var(--marigold);margin-bottom:.5em}
.article-body h3{font-size:1.18rem;margin:1.6em 0 .5em;scroll-margin-top:84px}
.article-body p{margin:0 0 1.15em}
.article-body ul,.article-body ol,.rich-list{margin:0 0 1.3em;padding-left:1.3em}
.article-body li{margin-bottom:.5em}
.article-body strong,.article-body b{font-weight:600;color:var(--ink)}
.article-body a{text-decoration:underline;text-decoration-color:var(--line-2);text-underline-offset:3px}
.article-body a:hover{text-decoration-color:var(--marigold)}

/* ---------- steps --------------------------------------------------------- */
.steps{display:grid;gap:12px;margin:0 0 1.6em}
.step{position:relative;display:flex;gap:15px;padding:16px 18px;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-s)}
.step-num{flex:0 0 auto;width:30px;height:30px;display:grid;place-items:center;background:var(--navy);
  color:#fff;border-radius:9px;font-family:var(--mono);font-weight:600;font-size:.92rem}
.step-body b{display:block;font-family:var(--display);margin-bottom:2px}
.step-body span,.step-body p{color:var(--muted);font-size:.95rem;margin:0}

/* ---------- callouts ------------------------------------------------------ */
.callout{display:flex;gap:13px;padding:15px 17px;border-radius:var(--radius);margin:0 0 1.5em;
  border:1px solid var(--line);background:var(--white);align-items:flex-start}
.callout-label{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  font-weight:700;padding:3px 8px;border-radius:6px;white-space:nowrap;margin-top:1px;color:#fff}
.callout p{margin:0;font-size:.96rem}
.callout-tip{background:var(--teal-soft);border-color:#bfe6df}
.callout-tip .callout-label{background:var(--teal)}
.callout-warn{background:var(--warn-soft);border-color:#f3c4bd}
.callout-warn .callout-label{background:var(--warn)}
.callout-key{background:var(--marigold-soft);border-color:#f3dca6}
.callout-key .callout-label{background:var(--marigold-d)}
.callout-note{background:var(--paper-2)}
.callout-note .callout-label{background:var(--navy-3)}

/* ---------- tables -------------------------------------------------------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);margin:0 0 1.6em;box-shadow:var(--shadow-s)}
.table-wrap table{width:100%;border-collapse:collapse;font-size:.93rem;min-width:380px}
.table-wrap caption{text-align:left;font-size:.82rem;color:var(--muted);padding:10px 14px;border-bottom:1px solid var(--line)}
.table-wrap th,.table-wrap td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
.table-wrap thead th{background:var(--navy);color:#eaf1fb;font-family:var(--display);font-weight:600;font-size:.85rem}
.table-wrap tbody tr:nth-child(even){background:var(--paper)}
.table-wrap tbody tr:last-child td{border-bottom:0}

/* ---------- figures ------------------------------------------------------- */
.article-figure{margin:0 0 1.6em;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--white);box-shadow:var(--shadow-s)}
.article-figure img{width:100%}
.article-figure figcaption{font-size:.84rem;color:var(--muted);padding:10px 14px;border-top:1px solid var(--line)}

/* ---------- TOC ----------------------------------------------------------- */
.toc{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;
  margin:0 0 28px;box-shadow:var(--shadow-s)}
.toc-title{font-family:var(--display);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);margin:0 0 10px;font-weight:600}
.toc ol{margin:0;padding-left:1.1em;columns:2;column-gap:28px;font-size:.92rem}
.toc li{margin-bottom:6px;break-inside:avoid}
.toc a{color:var(--ink-2)}
.toc a:hover{color:var(--marigold-d)}

/* ---------- FAQ ----------------------------------------------------------- */
.faq-section{margin:2.4em 0 0}
.faq-section>h2{margin-bottom:.7em}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);margin-bottom:10px;
  overflow:hidden;box-shadow:var(--shadow-s)}
.faq-item summary{cursor:pointer;list-style:none;padding:16px 50px 16px 18px;position:relative;
  font-family:var(--display);font-weight:600;font-size:1.02rem}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";position:absolute;right:20px;top:21px;width:9px;height:9px;
  border-right:2px solid var(--marigold-d);border-bottom:2px solid var(--marigold-d);transform:rotate(45deg);transition:.2s}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-answer{padding:0 18px 16px;color:var(--muted);font-size:.96rem}

/* ---------- disclaimer / sources / author --------------------------------- */
.disclaimer-box{display:flex;gap:13px;background:var(--warn-soft);border:1px solid #f3c4bd;border-radius:var(--radius);
  padding:16px 18px;margin:2.4em 0 0;font-size:.9rem;color:#7a2c22}
.disc-label{flex:0 0 auto;font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;
  font-weight:700;background:var(--warn);color:#fff;padding:4px 9px;border-radius:6px;height:fit-content}
.disclaimer-box p{margin:0}
.disclaimer-box a{color:#7a2c22;font-weight:600}
.sources{margin:2.4em 0 0}
.sources h2{font-size:1.2rem}
.sources ul{list-style:none;padding:0;font-size:.9rem}
.sources li{padding:8px 0;border-bottom:1px solid var(--line)}
.sources a{word-break:break-word}
.author-box{display:flex;gap:15px;align-items:flex-start;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:18px;margin:2.4em 0 0;box-shadow:var(--shadow-s)}
.author-ava{width:52px;height:52px;border-radius:12px;flex:0 0 auto;background:linear-gradient(135deg,var(--navy),var(--navy-3));
  display:grid;place-items:center;color:var(--marigold);font-family:var(--display);font-weight:700;font-size:1rem}
.author-name{font-family:var(--display);font-weight:600;margin:0 0 .2em}
.author-bio{margin:0;font-size:.88rem;color:var(--muted)}

/* ---------- related ------------------------------------------------------- */
.related{margin:2.6em 0 0}
.related h2{font-size:1.3rem;margin-bottom:.7em}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.rel-card{display:block;padding:16px 18px;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-s);transition:.16s}
.rel-card:hover{transform:translateY(-2px);border-color:var(--line-2);box-shadow:var(--shadow)}
.rel-card b{display:block;font-family:var(--display);font-size:1rem;margin-bottom:3px;color:var(--ink)}
.rel-card span{font-size:.85rem;color:var(--muted)}

/* ---------- sidebar ------------------------------------------------------- */
.side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-s)}
.side-card p{margin:0}
.side-official{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#eaf1fb;border-color:#0a1a30}
.side-official p{color:#b9c9df;font-size:.88rem;margin:.4em 0 12px}
.side-eyebrow{font-family:var(--display);font-size:.72rem!important;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);font-weight:600;margin-bottom:10px!important}
.side-official .side-eyebrow{color:#8aa6cc}
.side-cta{display:inline-flex;font-weight:600;font-family:var(--display);background:var(--marigold);color:#231400;
  padding:9px 16px;border-radius:999px;font-size:.9rem}
.side-cta:hover{background:#ffb53d;color:#231400}
.side-links{list-style:none;margin:0;padding:0}
.side-links li{padding:7px 0;border-bottom:1px solid var(--line);font-size:.92rem}
.side-links li:last-child{border-bottom:0}
.side-tip p{font-size:.9rem;color:var(--muted)}

/* ---------- hubs + home grids --------------------------------------------- */
.hub-grid,.home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.hub-card,.home-card{display:block;padding:18px 20px;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-s);transition:.16s}
.hub-card:hover,.home-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--line-2)}
.hub-card b,.home-card b{display:block;font-family:var(--display);font-size:1.05rem;color:var(--ink);margin-bottom:4px}
.hub-card span,.home-card .hc-d{display:block;font-size:.86rem;color:var(--muted)}
.home-card .hc-ico{font-size:1.5rem;line-height:1;margin-bottom:8px;display:block}
.home-sec{margin:clamp(38px,6vw,64px) 0 0}
.home-sec>h2{font-size:clamp(1.5rem,2.6vw,2rem)}
.home-sec>h2::before{content:"";display:block;width:50px;height:3px;border-radius:3px;background:var(--marigold);margin-bottom:.5em}
.sec-lede{color:var(--muted);max-width:60ch;margin:.2em 0 1.2em}
.sec-cta{margin:18px 0 0}
.shot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px;margin:0 0 1.4em}
.shot{margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white);box-shadow:var(--shadow-s)}
.shot img{width:100%;height:150px;object-fit:cover;object-position:top;background:var(--paper-2);display:block}
.shot figcaption{font-size:.78rem;color:var(--muted);padding:8px 10px;border-top:1px solid var(--line);line-height:1.4}
.home-figure{margin:.4em 0 1.5em;max-width:560px;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--white);box-shadow:var(--shadow-s)}
.home-figure img{width:100%;max-height:360px;object-fit:contain;object-position:center;background:var(--paper-2);display:block}
.home-figure figcaption{font-size:.82rem;color:var(--muted);padding:9px 13px;border-top:1px solid var(--line);line-height:1.45}

/* ---------- tools --------------------------------------------------------- */
.tool{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-s);margin:0 0 1.6em}
.tool-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:16px}
.tool-row label{display:flex;flex-direction:column;gap:6px;font-size:.82rem;font-weight:600;color:var(--ink-2)}
.tool-row input,.tool-row select{font:inherit;font-size:.95rem;padding:10px 12px;border:1px solid var(--line-2);
  border-radius:var(--radius-s);background:var(--paper);color:var(--ink)}
.tool-row input:focus,.tool-row select:focus{outline:none;border-color:var(--marigold);box-shadow:0 0 0 3px var(--marigold-soft)}
.tool-btn{font:inherit;font-family:var(--display);font-weight:600;border:0;border-radius:999px;cursor:pointer;
  padding:11px 22px;background:var(--navy);color:#fff;transition:.16s}
.tool-btn:hover{background:var(--navy-3)}
.tool-out{margin-top:16px;padding:16px 18px;border-radius:var(--radius);background:var(--marigold-soft);border:1px solid #f3dca6;font-size:.96rem}
.tool-out .big{font-family:var(--mono);font-size:1.5rem;font-weight:700;color:var(--navy);display:block;margin-bottom:6px}
.tool-out .row{display:flex;justify-content:space-between;gap:12px;padding:4px 0}
.tool-out .row b{font-family:var(--mono)}

/* ---------- footer -------------------------------------------------------- */
.site-footer{background:var(--navy);color:#b9c9df;margin-top:clamp(50px,8vw,90px);
  padding:clamp(38px,5vw,60px) 0 26px;border-top:3px solid var(--marigold)}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:30px}
.foot-brand .brand-mark{margin-bottom:12px}
.foot-tag{font-family:var(--display);font-weight:600;color:#fff;margin:0 0 8px}
.foot-mini{font-size:.84rem;margin:0;max-width:36ch;color:#90a4c2}
.foot-col h3,.foot-col h4{font-family:var(--display);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:#7d92b3;margin:0 0 12px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:8px}
.foot-col a{color:#cdd9ec;font-size:.9rem}
.foot-col a:hover{color:var(--marigold)}
.foot-disclaimer{margin-top:34px;padding-top:22px;border-top:1px solid #1c3253;font-size:.82rem;color:#8aa0c0}
.foot-disclaimer a{color:#cdd9ec;text-decoration:underline}
.foot-bottom{margin-top:18px;font-size:.82rem;color:#7d92b3;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- 404 ----------------------------------------------------------- */
.notfound-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:24px}

/* ---------- responsive ---------------------------------------------------- */
@media(max-width:980px){
  .layout{grid-template-columns:1fr}
  .sidebar{position:static;order:2;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-inner{grid-template-columns:1fr}
  .hero-art{order:-1;justify-content:flex-start}
}
@media(max-width:760px){
  .nav-toggle{display:block;margin-left:auto}
  .primary-nav{position:fixed;inset:66px 0 auto 0;background:var(--white);border-bottom:1px solid var(--line);
    margin:0;padding:12px 16px 18px;box-shadow:var(--shadow);display:none;max-height:calc(100vh - 66px);overflow:auto}
  .primary-nav.open{display:block}
  .primary-nav>ul{flex-direction:column;gap:2px}
  .primary-nav>ul>li>a{padding:13px 12px;border-radius:10px}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;
    border-left:2px solid var(--line);border-radius:0;margin:2px 0 8px 12px;padding:0 0 0 6px}
  .header-search{display:none}
  .toc ol{columns:1}
  .foot-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .slip{transform:none}
}