/* =====================================================================
   QUALITAS TR design system
   Graphite ink, drafting paper, copper heat tint, verdigris signal.
   ===================================================================== */

/* ---------- Fonts (self hosted, OFL) ---------- */
@font-face{font-family:"Archivo";font-style:normal;font-display:swap;font-weight:100 900;font-stretch:62% 125%;
  src:url(/assets/fonts/archivo-latin.woff2) format("woff2-variations");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Archivo";font-style:normal;font-display:swap;font-weight:100 900;font-stretch:62% 125%;
  src:url(/assets/fonts/archivo-latin-ext.woff2) format("woff2-variations");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1E00-1E9F,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Plex Mono";font-style:normal;font-display:swap;font-weight:400;
  src:url(/assets/fonts/plexmono-400.woff2) format("woff2")}
@font-face{font-family:"Plex Mono";font-style:normal;font-display:swap;font-weight:400;
  src:url(/assets/fonts/plexmono-ext-400.woff2) format("woff2");unicode-range:U+0100-02BA,U+1E00-1E9F}
@font-face{font-family:"Plex Mono";font-style:normal;font-display:swap;font-weight:500;
  src:url(/assets/fonts/plexmono-500.woff2) format("woff2")}

/* ---------- Tokens ---------- */
:root{
  --ink-950:#0a0c0f; --ink-900:#11151a; --ink-850:#161b21; --ink-800:#1c232b; --ink-700:#2a333d; --ink-600:#3b4651;
  --steel-500:#6c7783; --steel-400:#8a949e; --steel-300:#aab2ba; --steel-200:#cdd2d6;
  --paper-50:#f6f4ef; --paper-100:#eeeae1; --paper-200:#e2ddd0; --paper-300:#d2cbbb;
  --copper-600:#a9501f; --copper-500:#c4632c; --copper-400:#de7d41; --copper-300:#eea36f; --copper-100:#f7e3d3;
  --verd-600:#2c6e62; --verd-500:#3a8a7b; --verd-400:#58a796; --verd-100:#dcefe9;
  --sand-500:#b7955a; --signal-red:#b8433a;
  --text:#161b21; --text-2:#434c56; --text-3:#56606b;
  --bg:var(--paper-50); --surface:#fffdf9; --line:rgba(22,27,33,.14); --line-2:rgba(22,27,33,.08);
  --f-sans:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --f-mono:"Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r-1:4px; --r-2:8px; --r-3:14px;
  --shadow-1:0 1px 2px rgba(10,12,15,.06),0 4px 16px rgba(10,12,15,.06);
  --shadow-2:0 2px 6px rgba(10,12,15,.08),0 18px 48px rgba(10,12,15,.12);
  --wrap:1240px; --gutter:clamp(18px,4vw,40px);
  --ease:cubic-bezier(.2,.7,.2,1);
  --header-h:72px;
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--f-sans);font-size:17px;line-height:1.62;font-stretch:100%;
  font-feature-settings:"ss01","tnum" 0;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img,svg,canvas,video{max-width:100%;display:block}
svg{height:auto}
a{color:inherit;text-decoration-color:color-mix(in srgb,var(--copper-500) 55%,transparent);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--copper-600);text-decoration-color:var(--copper-500)}
:focus-visible{outline:2px solid var(--copper-500);outline-offset:3px;border-radius:2px}
::selection{background:var(--copper-300);color:var(--ink-950)}
h1,h2,h3,h4{font-family:var(--f-sans);line-height:1.08;letter-spacing:-.012em;margin:0 0 .5em;color:var(--ink-950);text-wrap:balance}
h1{font-size:clamp(2.2rem,1.4rem + 3.4vw,4.4rem);font-weight:680;font-stretch:118%}
h2{font-size:clamp(1.65rem,1.2rem + 1.8vw,2.7rem);font-weight:650;font-stretch:112%}
h3{font-size:clamp(1.12rem,1rem + .45vw,1.38rem);font-weight:620;font-stretch:104%;letter-spacing:-.005em;line-height:1.2}
h4{font-size:1rem;font-weight:650}
p{margin:0 0 1em;text-wrap:pretty}
ul,ol{margin:0 0 1em;padding-left:1.2em}
li{margin:.25em 0}
strong{font-weight:640}
small{font-size:.86em}
hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}
table{border-collapse:collapse;width:100%}
.visually-hidden,.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:12px;top:-60px;z-index:1000;background:var(--ink-950);color:#fff;padding:10px 16px;border-radius:var(--r-1);text-decoration:none}
.skip-link:focus{top:12px;color:#fff}

/* ---------- Layout ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.wrap--narrow{max-width:860px}
.section{padding-block:clamp(64px,8vw,120px);position:relative}
.section--tight{padding-block:clamp(44px,5vw,72px)}
.section--paper2{background:var(--paper-100)}
.section--dark{background:var(--ink-900);color:var(--steel-200)}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:#fff}
.section--dark a{color:#fff}
.section--dark .lead,.section--dark p{color:var(--steel-300)}
.section--line{border-top:1px solid var(--line)}
.grid{display:grid;gap:clamp(16px,2vw,28px)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:1024px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:680px){.grid-2,.grid-3,.grid-4{grid-template-columns:minmax(0,1fr)}}
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(28px,5vw,80px);align-items:start}
.split--even{grid-template-columns:1fr 1fr}
.split--rev{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
@media (max-width:900px){.split,.split--even,.split--rev{grid-template-columns:minmax(0,1fr)}}
.stack>*+*{margin-top:1rem}

/* ---------- Type helpers ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:.6em;font-family:var(--f-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--copper-600);margin-bottom:1.1rem;font-weight:500}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
.section--dark .eyebrow,.hero .eyebrow{color:var(--copper-300)}
.lead{font-size:clamp(1.08rem,1rem + .35vw,1.3rem);line-height:1.55;color:var(--text-2);max-width:62ch}
.mono{font-family:var(--f-mono);font-size:.86em;letter-spacing:.02em}
.muted{color:var(--text-3)}
.secnum{font-family:var(--f-mono);font-size:.74rem;color:var(--text-3);letter-spacing:.1em}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:clamp(28px,4vw,52px);flex-wrap:wrap}
.section-head h2{margin:0;max-width:20ch}
.section-head p{max-width:52ch;margin:0;color:var(--text-2)}
.section--dark .section-head p{color:var(--steel-300)}
.prose{max-width:72ch}
.prose h2{margin-top:2.2em;font-size:clamp(1.45rem,1.1rem + 1.2vw,2rem)}
.prose h3{margin-top:1.8em}
.prose ul li::marker{color:var(--copper-500)}
.prose table{margin:1.5em 0;font-size:.94rem}
.prose code{font-family:var(--f-mono);font-size:.88em;background:var(--paper-100);padding:.1em .35em;border-radius:3px}

/* ---------- Buttons ---------- */
.btn{--b:var(--ink-950);display:inline-flex;align-items:center;gap:.65em;min-height:48px;padding:.75em 1.25em;border-radius:var(--r-1);border:1px solid var(--b);
  background:var(--b);color:#fff;font-weight:600;font-stretch:108%;font-size:.95rem;letter-spacing:.01em;text-decoration:none;cursor:pointer;transition:transform .25s var(--ease),background .25s,border-color .25s,color .25s;white-space:nowrap}
.btn:hover{color:#fff;background:var(--copper-600);border-color:var(--copper-600);transform:translateY(-1px)}
.btn svg{width:18px;height:18px;flex:none}
.btn--copper{--b:var(--copper-500)}
.btn--copper:hover{background:var(--copper-400);border-color:var(--copper-400)}
.btn--ghost{background:transparent;color:var(--ink-950);border-color:var(--line)}
.btn--ghost:hover{background:var(--ink-950);color:#fff;border-color:var(--ink-950)}
.section--dark .btn--ghost,.hero .btn--ghost,.page-hero .btn--ghost,.cta-band .btn--ghost,.mobile-nav .btn--ghost{color:#fff;border-color:rgba(255,255,255,.28)}
.section--dark .btn--ghost:hover,.hero .btn--ghost:hover,.page-hero .btn--ghost:hover,.cta-band .btn--ghost:hover,.mobile-nav .btn--ghost:hover{background:#fff;color:var(--ink-950)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.link-arrow{display:inline-flex;align-items:center;gap:.45em;font-weight:600;font-stretch:106%;text-decoration:none;color:var(--ink-950)}
.link-arrow::after{content:"";width:18px;height:10px;background:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 10'%3E%3Cpath d='M0 5h16M12 1l4 4-4 4' fill='none' stroke='black' stroke-width='1.6'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 10'%3E%3Cpath d='M0 5h16M12 1l4 4-4 4' fill='none' stroke='black' stroke-width='1.6'/%3E%3C/svg%3E") center/contain no-repeat;transition:transform .25s var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}
.section--dark .link-arrow{color:#fff}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--paper-50) 88%,transparent);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--line-2)}
.site-header.is-dark{background:color-mix(in srgb,var(--ink-950) 82%,transparent);border-bottom-color:rgba(255,255,255,.08);color:#fff}
.header-inner{display:flex;align-items:center;gap:24px;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:inherit;flex:none}
.brand svg{width:38px;height:38px}
.brand-word{display:flex;flex-direction:column;line-height:1}
.brand-name{font-weight:720;font-stretch:125%;letter-spacing:.06em;font-size:1.05rem}
.brand-name b{display:inline-block;margin-left:.35em;font-family:var(--f-mono);font-weight:500;font-size:.66rem;letter-spacing:.08em;padding:.25em .4em;border:1px solid var(--copper-500);color:var(--copper-500);border-radius:2px;vertical-align:.2em}
.brand-tag{font-family:var(--f-mono);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);margin-top:5px}
.is-dark .brand-tag{color:var(--steel-400)}
.nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-list{display:flex;list-style:none;margin:0;padding:0;gap:2px}
.nav-list>li{margin:0;position:static}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:10px 12px;border-radius:var(--r-1);font-size:.92rem;font-weight:560;font-stretch:104%;text-decoration:none;color:inherit;background:none;border:0;cursor:pointer;font-family:inherit}
.nav-link:hover,.nav-link[aria-expanded="true"]{background:rgba(22,27,33,.06);color:inherit}
.is-dark .nav-link:hover,.is-dark .nav-link[aria-expanded="true"]{background:rgba(255,255,255,.08)}
.nav-link[aria-current="page"],.nav-link.is-active{box-shadow:inset 0 -2px 0 var(--copper-500)}
.nav-link .chev{width:10px;height:10px;transition:transform .2s}
.nav-link[aria-expanded="true"] .chev{transform:rotate(180deg)}
.header-cta{margin-left:10px;min-height:42px;padding:.55em 1em}
.mega{position:absolute;left:0;right:0;top:100%;background:var(--surface);color:var(--text);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s,transform .25s var(--ease),visibility .2s;max-height:calc(100vh - var(--header-h));overflow:auto}
.mega.is-open{opacity:1;visibility:visible;transform:none}
.mega-inner{display:grid;grid-template-columns:260px 1fr;gap:40px;padding-block:32px}
.mega-intro p{color:var(--text-2);font-size:.92rem}
.mega-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px 28px}
.mega-cols--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.mega-col h3{font-size:.8rem;font-family:var(--f-mono);font-weight:500;letter-spacing:.08em;text-transform:uppercase;margin:0 0 .6em;color:var(--copper-600)}
.mega-col h3 a{text-decoration:none}
.mega-col ul{list-style:none;padding:0;margin:0}
.mega-col li{margin:0}
.mega-col li a{display:block;padding:4px 0;font-size:.9rem;text-decoration:none;color:var(--text-2)}
.mega-col li a:hover{color:var(--copper-600)}
.nav-toggle{display:none;margin-left:auto;width:46px;height:46px;border:1px solid var(--line);border-radius:var(--r-1);background:transparent;color:inherit;cursor:pointer;align-items:center;justify-content:center}
.is-dark .nav-toggle{border-color:rgba(255,255,255,.2)}
.nav-toggle span{display:block;width:20px;height:1.6px;background:currentColor;position:relative;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:1.6px;background:currentColor;transition:transform .25s var(--ease)}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-nav{display:none}
@media (max-width:1120px){
  .nav,.mega{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-nav{display:block;position:fixed;inset:var(--header-h) 0 0 0;background:var(--ink-950);color:#fff;overflow-y:auto;padding:12px var(--gutter) 40px;
    transform:translateX(100%);transition:transform .32s var(--ease);visibility:hidden}
  .mobile-nav.is-open{transform:none;visibility:visible}
  .mobile-nav details{border-bottom:1px solid rgba(255,255,255,.1)}
  .mobile-nav summary{list-style:none;display:flex;justify-content:space-between;align-items:center;padding:16px 2px;font-size:1.12rem;font-weight:600;font-stretch:110%;cursor:pointer}
  .mobile-nav summary::-webkit-details-marker{display:none}
  .mobile-nav summary::after{content:"+";font-family:var(--f-mono);color:var(--copper-300);font-size:1.2rem}
  .mobile-nav details[open] summary::after{content:"\2212"}
  .mobile-nav ul{list-style:none;padding:0 0 14px;margin:0}
  .mobile-nav li a{display:block;padding:9px 2px;color:var(--steel-200);text-decoration:none;font-size:.98rem}
  .mobile-nav .m-link{display:block;padding:16px 2px;font-size:1.12rem;font-weight:600;font-stretch:110%;border-bottom:1px solid rgba(255,255,255,.1);text-decoration:none;color:#fff}
  .mobile-nav .m-contact{margin-top:24px;display:grid;gap:10px}
  body.nav-open{overflow:hidden}
}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink-950);color:#fff;overflow:hidden;isolation:isolate;margin-top:calc(var(--header-h) * -1);padding-top:var(--header-h)}
.hero canvas.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1;opacity:.95}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;
  background:radial-gradient(1200px 600px at 78% 20%,rgba(196,99,44,.22),transparent 60%),radial-gradient(900px 600px at 10% 90%,rgba(58,138,123,.16),transparent 60%),var(--ink-950)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(to bottom,#000 30%,transparent 95%)}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:clamp(28px,4vw,64px);align-items:center;min-height:min(88vh,860px);padding-block:clamp(56px,8vw,110px)}
@media (max-width:980px){.hero-inner{grid-template-columns:minmax(0,1fr);min-height:0}}
.hero h1{color:#fff;font-size:clamp(2.6rem,1.4rem + 5vw,5.6rem);font-stretch:122%;font-weight:700;letter-spacing:-.02em;line-height:.98;margin-bottom:.35em}
.hero h1 .dot{color:var(--copper-400)}
.hero h1>span{display:block}
.hero h1 .dot{display:inline}
.hero .lead{color:var(--steel-300);font-size:clamp(1.1rem,1rem + .5vw,1.38rem);max-width:56ch}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:28px;font-family:var(--f-mono);font-size:.74rem;color:var(--steel-400);letter-spacing:.06em;text-transform:uppercase}
.hero-meta span::before{content:"\25A0";color:var(--copper-400);margin-right:.5em;font-size:.7em;vertical-align:.15em}
.ticker{border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1);overflow:hidden;white-space:nowrap;padding:14px 0;font-family:var(--f-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--steel-300);background:rgba(10,12,15,.6)}
.ticker-track{display:inline-flex;gap:40px;animation:tick 70s linear infinite;padding-left:40px}
.ticker-track span::before{content:"+";color:var(--copper-400);margin-right:12px}
@keyframes tick{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.ticker-track{animation:none;flex-wrap:wrap;white-space:normal}}
.hero-card{background:rgba(17,21,26,.72);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-2);padding:20px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);font-size:.9rem;box-shadow:0 30px 80px rgba(0,0,0,.4)}
.hero-card header{display:flex;justify-content:space-between;align-items:center;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--steel-400);margin-bottom:14px;gap:10px}
.hero-card .tag{color:var(--copper-300);border:1px solid rgba(238,163,111,.4);padding:2px 6px;border-radius:2px}
.itp-row{display:grid;grid-template-columns:28px 1fr auto;gap:10px;align-items:center;padding:9px 0;border-top:1px dashed rgba(255,255,255,.1);color:var(--steel-200)}
.itp-row .n{font-family:var(--f-mono);font-size:.72rem;color:var(--steel-400)}
.itp-row .pt{font-family:var(--f-mono);font-size:.7rem;padding:2px 7px;border-radius:2px;border:1px solid}
.pt-H{color:var(--copper-300);border-color:rgba(238,163,111,.5)}
.pt-W{color:#9fd3c7;border-color:rgba(159,211,199,.45)}
.pt-R{color:var(--steel-300);border-color:rgba(170,178,186,.4)}
.itp-row.done .t{color:#fff}
.itp-row.done .t::after{content:" \2713";color:var(--verd-400)}
.hero-card footer{margin-top:12px;font-size:.72rem;color:var(--steel-400);font-family:var(--f-mono)}

/* ---------- Page hero (interior) ---------- */
.page-hero{background:var(--ink-950);color:#fff;position:relative;overflow:hidden;isolation:isolate;margin-top:calc(var(--header-h) * -1);padding-top:var(--header-h)}
.page-hero::before{content:"";position:absolute;inset:0;z-index:-2;background:radial-gradient(900px 420px at 85% 0%,rgba(196,99,44,.25),transparent 60%),radial-gradient(700px 400px at 0% 100%,rgba(58,138,123,.14),transparent 60%),var(--ink-950)}
.page-hero::after{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(100deg,transparent 30%,#000 75%)}
.page-hero-inner{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:40px;align-items:end;padding-block:clamp(48px,6vw,88px) clamp(40px,5vw,72px)}
@media (max-width:900px){.page-hero-inner{grid-template-columns:minmax(0,1fr)}}
.page-hero h1{color:#fff;font-size:clamp(2rem,1.2rem + 3vw,3.7rem);max-width:22ch}
.page-hero .lead{color:var(--steel-300)}
.page-hero .hero-art{opacity:.95}
.page-hero .hero-art svg{width:100%;max-width:340px;margin-left:auto}
.crumbs{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--steel-400);margin-bottom:22px}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0}
.crumbs li{margin:0;display:inline-flex;gap:6px;align-items:center}
.crumbs li+li::before{content:"/";color:var(--steel-600,#3b4651)}
.crumbs a{color:var(--steel-300);text-decoration:none}
.crumbs a:hover{color:var(--copper-300)}
.page-hero .hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}

/* ---------- Cards ---------- */
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-2);padding:clamp(20px,2.2vw,28px);transition:border-color .25s,transform .3s var(--ease),box-shadow .3s;display:flex;flex-direction:column}
.card:hover{border-color:color-mix(in srgb,var(--copper-500) 45%,var(--line));box-shadow:var(--shadow-1)}
.card h3{margin-bottom:.45em}
.card h3 a{text-decoration:none}
.card h3 a::after{content:"";position:absolute;inset:0}
.card p{color:var(--text-2);font-size:.95rem;margin-bottom:.8em}
.card .card-foot{margin-top:auto;padding-top:12px;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3);display:flex;justify-content:space-between;gap:8px}
.card .idx{font-family:var(--f-mono);font-size:.72rem;color:var(--copper-600);letter-spacing:.08em;margin-bottom:14px;display:flex;justify-content:space-between}
.card .icon{width:44px;height:44px;margin-bottom:16px;color:var(--ink-900)}
.card--corner::before{content:"";position:absolute;top:-1px;left:-1px;width:14px;height:14px;border-top:2px solid var(--copper-500);border-left:2px solid var(--copper-500);border-top-left-radius:var(--r-2)}
.section--dark .card{background:var(--ink-850);border-color:rgba(255,255,255,.09)}
.section--dark .card p{color:var(--steel-300)}
.section--dark .card .icon{color:var(--copper-300)}
.card-list{list-style:none;padding:0;margin:.4em 0 0;font-size:.88rem;color:var(--text-2)}
.card-list li{padding:5px 0;border-top:1px dashed var(--line);margin:0}
.section--dark .card-list li{border-color:rgba(255,255,255,.08);color:var(--steel-300)}

/* Service family grid (home) */
.family-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}
@media (max-width:1100px){.family-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:760px){.family-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:460px){.family-grid{grid-template-columns:minmax(0,1fr)}}
.family{position:relative;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 20px 22px;min-height:230px;display:flex;flex-direction:column;background:var(--surface);transition:background .3s}
.family:hover{background:var(--ink-950);color:#fff}
.family:hover h3,.family:hover h3 a{color:#fff}
.family:hover p{color:var(--steel-300)}
.family:hover .icon{color:var(--copper-300)}
.family .num{font-family:var(--f-mono);font-size:.72rem;color:var(--copper-600);letter-spacing:.1em}
.family:hover .num{color:var(--copper-300)}
.family .icon{width:40px;height:40px;margin:18px 0 16px;color:var(--ink-900);transition:color .3s}
.family h3{font-size:1.05rem;margin-bottom:.4em}
.family h3 a{text-decoration:none}
.family h3 a::after{content:"";position:absolute;inset:0}
.family p{font-size:.86rem;color:var(--text-2);margin:0;transition:color .3s}
.family .count{margin-top:auto;padding-top:14px;font-family:var(--f-mono);font-size:.68rem;color:var(--text-3);letter-spacing:.08em;text-transform:uppercase}

/* ---------- Chips: feature control frame style ---------- */
.fcf{display:inline-flex;align-items:stretch;border:1px solid var(--ink-700);border-radius:2px;font-family:var(--f-mono);font-size:.74rem;line-height:1;text-decoration:none;color:var(--ink-900);background:var(--surface);transition:background .2s,color .2s,border-color .2s}
.fcf>span{padding:7px 8px;display:inline-flex;align-items:center}
.fcf>span+span{border-left:1px solid var(--ink-700)}
.fcf .k{color:var(--copper-600)}
a.fcf:hover{background:var(--ink-950);color:#fff;border-color:var(--ink-950)}
a.fcf:hover .k{color:var(--copper-300)}
.section--dark .fcf,.page-hero .fcf{background:transparent;color:var(--steel-200);border-color:rgba(255,255,255,.28)}
.section--dark .fcf>span+span,.page-hero .fcf>span+span{border-color:rgba(255,255,255,.28)}
.section--dark .fcf .k,.page-hero .fcf .k{color:var(--copper-300)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 11px;border:1px solid var(--line);border-radius:100px;font-size:.82rem;text-decoration:none;background:var(--surface);color:var(--text-2)}
a.chip:hover{border-color:var(--copper-500);color:var(--copper-600)}

/* ---------- Content sections (detail pages) ---------- */
.detail{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(32px,5vw,72px);align-items:start}
@media (max-width:1000px){.detail{grid-template-columns:minmax(0,1fr)}}
.detail-main>section{padding-block:clamp(28px,3.5vw,44px);border-top:1px solid var(--line)}
.detail-main>section:first-child{border-top:0;padding-top:0}
.detail-main h2{font-size:clamp(1.4rem,1.1rem + 1vw,1.95rem);display:flex;gap:14px;align-items:baseline}
.detail-main h2 .secnum{flex:none;color:var(--copper-600)}
.aside{position:sticky;top:calc(var(--header-h) + 24px);display:grid;gap:18px}
@media (max-width:1000px){.aside{position:static}}
.aside-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-2);padding:20px}
.aside-box h2,.aside-box h3{font-size:.76rem;font-family:var(--f-mono);font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--copper-600);margin-bottom:.9em}
.aside-box ul{list-style:none;padding:0;margin:0}
.aside-box li{margin:0;border-top:1px dashed var(--line)}
.aside-box li:first-child{border-top:0}
.aside-box li a{display:block;padding:8px 0;text-decoration:none;font-size:.92rem}
.aside-box--dark{background:var(--ink-950);color:var(--steel-200);border-color:var(--ink-950)}
.aside-box--dark h2,.aside-box--dark h3{color:var(--copper-300)}
.aside-box--dark p{font-size:.92rem;color:var(--steel-300)}
.aside-box--dark a{color:#fff}
.toc ol{list-style:none;padding:0;margin:0;counter-reset:toc}
.toc li{counter-increment:toc;margin:0;border-top:1px dashed var(--line)}
.toc li:first-child{border-top:0}
.toc a{display:flex;gap:10px;padding:7px 0;text-decoration:none;font-size:.9rem;color:var(--text-2)}
.toc a::before{content:counter(toc,decimal-leading-zero);min-width:20px;margin-right:6px;font-family:var(--f-mono);font-size:.72rem;color:var(--steel-400);padding-top:.2em}
.toc a.is-current{color:var(--copper-600)}
.toc a.is-current::before{color:var(--copper-600)}

.checklist{list-style:none;padding:0;margin:0;display:grid;gap:0}
.checklist li{position:relative;padding:10px 0 10px 30px;border-top:1px dashed var(--line);margin:0}
.checklist li:first-child{border-top:0}
.checklist li::before{content:"";position:absolute;left:2px;top:15px;width:14px;height:8px;border-left:2px solid var(--verd-500);border-bottom:2px solid var(--verd-500);transform:rotate(-45deg)}
.checklist--cols{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:32px}
@media (max-width:680px){.checklist--cols{grid-template-columns:minmax(0,1fr)}}
.checklist--cols li:nth-child(2){border-top:0}
@media (max-width:680px){.checklist--cols li:nth-child(2){border-top:1px dashed var(--line)}}
.xlist{list-style:none;padding:0;margin:0}
.xlist li{position:relative;padding:10px 0 10px 30px;border-top:1px dashed var(--line);margin:0}
.xlist li:first-child{border-top:0}
.xlist li::before,.xlist li::after{content:"";position:absolute;left:4px;top:20px;width:13px;height:2px;background:var(--signal-red);transform:rotate(45deg)}
.xlist li::after{transform:rotate(-45deg)}
.scope-cols{columns:3 220px;column-gap:32px;list-style:none;padding:0;margin:0}
.scope-cols li{break-inside:avoid;padding:7px 0 7px 18px;position:relative;border-top:1px dashed var(--line);margin:0;font-size:.95rem}
.scope-cols li::before{content:"";position:absolute;left:0;top:16px;width:8px;height:1px;background:var(--copper-500)}

/* Method steps */
.steps{list-style:none;padding:0;margin:0;counter-reset:step;display:grid;gap:0}
.steps>li{counter-increment:step;display:grid;grid-template-columns:56px 1fr;gap:16px;padding:18px 0;border-top:1px solid var(--line);margin:0}
.steps>li:first-child{border-top:0}
.steps>li::before{content:counter(step,decimal-leading-zero);font-family:var(--f-mono);font-size:.82rem;color:var(--copper-600);border:1px solid color-mix(in srgb,var(--copper-500) 40%,transparent);border-radius:2px;height:32px;display:grid;place-items:center}
.steps h3{font-size:1.06rem;margin-bottom:.3em}
.steps p{margin:0;color:var(--text-2)}

/* Deliverables */
.deliv{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (max-width:680px){.deliv{grid-template-columns:minmax(0,1fr)}}
.deliv li{list-style:none;margin:0;display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-1);padding:14px}
.deliv{padding:0;margin:0}
.deliv svg{width:22px;height:22px;flex:none;color:var(--copper-500);margin-top:2px}

/* Tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-2);background:var(--surface);-webkit-overflow-scrolling:touch}
.table-wrap table{min-width:560px}
.table-wrap th,.table-wrap td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line-2);vertical-align:top;font-size:.93rem}
.table-wrap th{font-family:var(--f-mono);font-weight:500;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);background:var(--paper-100)}
.table-wrap tr:last-child td{border-bottom:0}
.table-wrap td:first-child{font-weight:600}

/* Callouts */
.note{border-left:3px solid var(--copper-500);background:var(--copper-100);padding:14px 18px;border-radius:0 var(--r-1) var(--r-1) 0;font-size:.94rem;color:var(--ink-800);margin:1.4em 0}
.note--verd{border-color:var(--verd-500);background:var(--verd-100)}
.note--steel{border-color:var(--steel-500);background:var(--paper-100)}
.note strong{display:block;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;font-weight:500;margin-bottom:4px;color:var(--copper-600)}
.note--verd strong{color:var(--verd-600)}
.note--steel strong{color:var(--text-3)}
.illus-tag{display:inline-block;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;padding:3px 7px;border:1px dashed currentColor;border-radius:2px;color:var(--text-3)}
.section--dark .illus-tag{color:var(--steel-400)}

/* Compare (inspection vs expediting vs PM) */
.compare{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid rgba(255,255,255,.12);border-radius:var(--r-2);overflow:hidden}
@media (max-width:860px){.compare{grid-template-columns:minmax(0,1fr)}}
.compare>div{padding:28px;border-left:1px solid rgba(255,255,255,.12)}
.compare>div:first-child{border-left:0}
@media (max-width:860px){.compare>div{border-left:0;border-top:1px solid rgba(255,255,255,.12)}.compare>div:first-child{border-top:0}}
.compare h3{display:flex;justify-content:space-between;align-items:baseline}
.compare .q{font-family:var(--f-mono);font-size:.78rem;color:var(--copper-300);margin-bottom:12px;display:block}
.compare ul{list-style:none;padding:0;margin:0}
.compare li{padding:7px 0;border-top:1px dashed rgba(255,255,255,.1);color:var(--steel-300);font-size:.93rem;margin:0}

/* Lifecycle interactive */
.lifecycle{display:grid;grid-template-columns:minmax(0,1fr);gap:24px}
.lc-track{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));position:relative;gap:0;counter-reset:lc}
.lc-track::before{content:"";position:absolute;left:6%;right:6%;top:27px;height:1px;background:repeating-linear-gradient(90deg,var(--steel-400) 0 6px,transparent 6px 12px)}
.lc-step{position:relative;background:none;border:0;padding:0 6px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;text-align:center;cursor:pointer;font-family:inherit;color:var(--text-2)}
.lc-step .dot{width:54px;height:54px;margin:0 auto 12px;border-radius:50%;display:grid;place-items:center;background:var(--surface);border:1px solid var(--line);transition:all .25s var(--ease);position:relative;z-index:1}
.lc-step .dot svg{width:24px;height:24px;color:var(--ink-800)}
.lc-step .lbl{display:block;font-size:.84rem;font-weight:600;font-stretch:104%;line-height:1.25}
.lc-step .ph{display:block;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.08em;color:var(--text-3);margin-top:4px}
.lc-step:hover .dot{border-color:var(--copper-500)}
.lc-step[aria-selected="true"] .dot{background:var(--ink-950);border-color:var(--ink-950);box-shadow:0 0 0 6px color-mix(in srgb,var(--copper-500) 20%,transparent)}
.lc-step[aria-selected="true"] .dot svg{color:var(--copper-300)}
.lc-step[aria-selected="true"] .lbl{color:var(--ink-950)}
.lc-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-2);padding:clamp(22px,3vw,36px);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}
.lc-panel[hidden]{display:none}
@media (max-width:860px){.lc-panel{grid-template-columns:minmax(0,1fr)}}
@media (max-width:860px){
  .lc-track{grid-template-columns:repeat(4,minmax(0,1fr));row-gap:22px}
  .lc-track::before{display:none}
}
@media (max-width:460px){.lc-track{grid-template-columns:repeat(2,minmax(0,1fr))}}
.no-js .lc-panel[hidden]{display:grid}

/* Chart widgets */
.viz{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-2);padding:clamp(16px,2.4vw,28px);position:relative}
.section--dark .viz{background:var(--ink-850);border-color:rgba(255,255,255,.09)}
.viz-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:14px;flex-wrap:wrap}
.viz-head h3{margin:0;font-size:1.08rem}
.viz-head p{margin:.25em 0 0;font-size:.88rem;color:var(--text-3)}
.viz svg{width:100%;height:auto;overflow:visible}
.viz-controls{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:var(--r-1);overflow:hidden}
.seg button{background:transparent;border:0;padding:8px 12px;font-family:var(--f-mono);font-size:.74rem;cursor:pointer;color:var(--text-2);min-height:38px}
.seg button+button{border-left:1px solid var(--line)}
.seg button[aria-pressed="true"]{background:var(--ink-950);color:#fff}
.viz-readout{font-family:var(--f-mono);font-size:.8rem;color:var(--text-2);margin-top:10px;min-height:1.4em}
.viz .axis text,.viz text{font-family:var(--f-mono);font-size:11px;fill:var(--text-3)}
.viz .grid-line{stroke:var(--line-2)}
.viz .hit{cursor:pointer}
.viz-tip{position:absolute;pointer-events:none;background:var(--ink-950);color:#fff;font-family:var(--f-mono);font-size:.74rem;padding:7px 9px;border-radius:3px;white-space:nowrap;transform:translate(-50%,-120%);opacity:0;transition:opacity .15s;z-index:5}
.viz-tip.on{opacity:1}

/* Risk matrix */
.risk-matrix{display:grid;grid-template-columns:auto repeat(5,minmax(0,1fr));gap:4px;font-family:var(--f-mono);font-size:.72rem}
.risk-matrix .cell{aspect-ratio:1.4;border-radius:3px;display:grid;place-items:center;cursor:pointer;border:0;font-family:inherit;font-size:.8rem;color:var(--ink-950);transition:transform .15s,box-shadow .15s}
.risk-matrix .cell:hover,.risk-matrix .cell[aria-pressed="true"]{transform:scale(1.05);box-shadow:0 0 0 2px var(--ink-950)}
.risk-matrix .ax{display:grid;place-items:center;color:var(--text-3)}

/* Map */
.map-wrap{position:relative}
.tr-map{width:100%;height:auto}
.tr-map path{fill:var(--paper-200);stroke:var(--paper-50);stroke-width:.8;transition:fill .2s;cursor:pointer;outline:none}
.section--dark .tr-map path{fill:var(--ink-700);stroke:var(--ink-900)}
.tr-map path.is-cluster{fill:color-mix(in srgb,var(--copper-500) 42%,var(--paper-200))}
.section--dark .tr-map path.is-cluster{fill:color-mix(in srgb,var(--copper-500) 55%,var(--ink-700))}
.tr-map path.is-hl{fill:var(--copper-400)!important}
.tr-map path:hover,.tr-map path:focus-visible,.tr-map path.is-sel{fill:var(--copper-500)!important}
.tr-map path.is-office{fill:var(--verd-500)!important}
.tr-map .office-pin circle{fill:var(--verd-500)}
.tr-map .office-pulse{fill:none;stroke:var(--verd-400);stroke-width:1.5;transform-origin:center;transform-box:fill-box;animation:pulse 2.4s ease-out infinite}
@keyframes pulse{from{transform:scale(.6);opacity:1}to{transform:scale(3.2);opacity:0}}
@media (prefers-reduced-motion:reduce){.tr-map .office-pulse{animation:none;opacity:.5}}
.tr-map .lbl{font-family:var(--f-mono);font-size:9px;fill:var(--ink-900);pointer-events:none}
.section--dark .tr-map .lbl{fill:#fff}
.map-legend{display:flex;flex-wrap:wrap;gap:16px;font-size:.82rem;color:var(--text-2);margin-top:14px}
.section--dark .map-legend{color:var(--steel-300)}
.map-legend i{display:inline-block;width:12px;height:12px;border-radius:2px;margin-right:6px;vertical-align:-1px}
.map-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-2);padding:22px;min-height:260px}
.section--dark .map-panel{background:var(--ink-850);border-color:rgba(255,255,255,.1)}
.map-panel h3{margin-bottom:.3em}
.map-panel .meta{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3);margin-bottom:12px}
.sector-filter{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.sector-filter button{font-family:var(--f-mono);font-size:.72rem;padding:7px 10px;border:1px solid var(--line);background:var(--surface);border-radius:100px;cursor:pointer;color:var(--text-2);min-height:34px}
.section--dark .sector-filter button{background:transparent;border-color:rgba(255,255,255,.2);color:var(--steel-300)}
.sector-filter button[aria-pressed="true"]{background:var(--copper-500);border-color:var(--copper-500);color:#fff}
.world-map path{fill:var(--ink-700);stroke:var(--ink-900);stroke-width:.4}
.world-map path.tr{fill:var(--copper-500)}
.world-map path.mk{fill:color-mix(in srgb,var(--verd-500) 55%,var(--ink-700))}
.world-map .arc{fill:none;stroke:var(--copper-300);stroke-width:1.2;stroke-dasharray:4 5;opacity:.8}

/* CTA band */
.cta-band{background:var(--ink-950);color:#fff;position:relative;overflow:hidden;isolation:isolate}
.cta-band::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(700px 300px at 90% 10%,rgba(196,99,44,.32),transparent 60%),linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px) 0 0/40px 40px,linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px) 0 0/40px 40px}
.cta-inner{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:40px;align-items:center;padding-block:clamp(56px,7vw,96px)}
@media (max-width:900px){.cta-inner{grid-template-columns:minmax(0,1fr)}}
.cta-band h2{color:#fff;max-width:20ch}
.cta-band p{color:var(--steel-300)}
.contact-lines{display:grid;gap:10px}
.contact-line{display:flex;align-items:center;gap:14px;padding:16px 18px;border:1px solid rgba(255,255,255,.14);border-radius:var(--r-2);text-decoration:none;color:#fff;transition:border-color .2s,background .2s}
.contact-line:hover{border-color:var(--copper-400);background:rgba(196,99,44,.08);color:#fff}
.contact-line svg{width:22px;height:22px;color:var(--copper-300);flex:none}
.contact-line .k{display:block;font-family:var(--f-mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--steel-400)}
.contact-line .v{display:block;font-weight:600;font-stretch:106%;font-size:1.02rem;word-break:break-word}

/* FAQ */
.faq details{border-top:1px solid var(--line);padding:4px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;padding:16px 0;font-weight:600;font-stretch:104%;font-size:1.04rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--f-mono);color:var(--copper-600);font-size:1.2rem;line-height:1}
.faq details[open] summary::after{content:"\2212"}
.faq details p{color:var(--text-2);padding-bottom:10px;margin:0;max-width:70ch}

/* Footer */
.site-footer{background:var(--ink-950);color:var(--steel-300);font-size:.92rem;border-top:1px solid rgba(255,255,255,.06)}
.footer-top{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(4,minmax(0,1fr));gap:32px;padding-block:64px 40px}
@media (max-width:1000px){.footer-top{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-top{grid-template-columns:minmax(0,1fr)}}
.site-footer h2{font-size:.74rem;font-family:var(--f-mono);font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--copper-300);margin-bottom:1em}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:0}
.site-footer li a{display:inline-block;padding:4px 0;text-decoration:none;color:var(--steel-300)}
.site-footer a:hover{color:#fff}
.site-footer .brand{color:#fff;margin-bottom:18px}
.site-footer .brand-tag{color:var(--steel-400)}
.footer-contact a{color:#fff;text-decoration:none}
.footer-contact p{margin:0 0 .6em}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-block:22px;display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;font-size:.8rem;color:var(--steel-400)}
.footer-bottom a{color:var(--steel-400);text-decoration:none}
.footer-disclaimer{max-width:80ch;font-size:.8rem;color:var(--steel-400);padding-bottom:28px}

/* Back to top */
.to-top{position:fixed;right:clamp(14px,2.5vw,28px);bottom:clamp(14px,2.5vw,28px);z-index:90;width:52px;height:52px;border-radius:50%;border:0;background:var(--ink-950);color:#fff;cursor:pointer;display:grid;place-items:center;
  box-shadow:0 10px 30px rgba(0,0,0,.25);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,transform .25s var(--ease),visibility .25s}
.to-top.on{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--copper-600)}
.to-top svg.ring{position:absolute;inset:0;width:52px;height:52px;transform:rotate(-90deg)}
.to-top svg.ring circle{fill:none;stroke-width:2}
.to-top svg.ring .bg{stroke:rgba(255,255,255,.12)}
.to-top svg.ring .fg{stroke:var(--copper-400);stroke-dasharray:150.8;stroke-dashoffset:150.8;transition:stroke-dashoffset .1s linear}
.to-top .arr{width:18px;height:18px;position:relative}
.read-progress{position:fixed;top:0;left:0;height:2px;background:var(--copper-500);width:0;z-index:200;transition:width .1s linear}

/* Reveal animations (only when JS present) */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .8s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
.js .reveal-d1{transition-delay:.08s}.js .reveal-d2{transition-delay:.16s}.js .reveal-d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}
.draw path,.draw line,.draw circle,.draw rect,.draw polyline{stroke-dasharray:var(--len,600);stroke-dashoffset:0}
.js .draw:not(.is-in) .d{stroke-dashoffset:var(--len,600)}
.js .draw .d{transition:stroke-dashoffset 1.6s var(--ease)}
@media (prefers-reduced-motion:reduce){.js .draw .d{transition:none;stroke-dashoffset:0!important}}

/* Hub index lists */
.hub-group{margin-bottom:clamp(40px,5vw,64px)}
.hub-group>h2{display:flex;gap:14px;align-items:baseline;font-size:clamp(1.35rem,1.1rem + .9vw,1.8rem);padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:24px}
.hub-group>h2 .secnum{color:var(--copper-600)}
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.filter-bar button{font-family:var(--f-mono);font-size:.74rem;padding:8px 12px;border:1px solid var(--line);background:var(--surface);border-radius:100px;cursor:pointer;color:var(--text-2);min-height:38px}
.filter-bar button[aria-pressed="true"]{background:var(--ink-950);color:#fff;border-color:var(--ink-950)}
[data-filter-item][hidden]{display:none!important}
.search-box{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:var(--r-1);background:var(--surface);padding:0 14px;max-width:460px;margin-bottom:18px}
.search-box input{border:0;outline:0;background:transparent;font:inherit;padding:12px 0;width:100%;color:var(--text)}
.search-box svg{width:18px;height:18px;color:var(--text-3)}

/* Tools */
.tool{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(20px,3vw,40px);align-items:start}
@media (max-width:900px){.tool{grid-template-columns:minmax(0,1fr)}}
.tool-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-2);padding:clamp(18px,2.4vw,28px)}
.tool-panel h2{font-size:1.15rem;margin-bottom:1em}
.field{display:grid;gap:6px;margin-bottom:14px}
.field label{font-size:.84rem;font-weight:600;color:var(--text-2)}
.field .hint{font-size:.78rem;color:var(--text-3)}
.field input,.field select,.field textarea{font:inherit;font-size:1rem;padding:11px 12px;border:1px solid var(--paper-300);border-radius:var(--r-1);background:#fff;color:var(--text);width:100%;min-height:46px}
.field textarea{min-height:120px;font-family:var(--f-mono);font-size:.88rem}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--copper-400);outline-offset:0;border-color:var(--copper-400)}
.field-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px}
.result{background:var(--ink-950);color:#fff;border-radius:var(--r-2);padding:22px}
.result h2{color:#fff;font-size:.78rem;font-family:var(--f-mono);font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--copper-300)}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px}
.kpi{border:1px solid rgba(255,255,255,.12);border-radius:var(--r-1);padding:12px 14px}
.kpi .k{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--steel-400)}
.kpi .v{font-size:1.5rem;font-weight:680;font-stretch:112%;font-variant-numeric:tabular-nums;margin-top:2px}
.kpi .v.ok{color:#8fd0c0}.kpi .v.warn{color:var(--copper-300)}.kpi .v.bad{color:#f19a8f}
.result p{color:var(--steel-300);font-size:.9rem}
.result svg text{fill:var(--steel-400);font-family:var(--f-mono);font-size:10px}
.formula{font-family:var(--f-mono);font-size:.88rem;background:var(--paper-100);border:1px solid var(--line);padding:12px 14px;border-radius:var(--r-1);overflow-x:auto;white-space:pre}

/* Contact page */
.contact-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-2);padding:28px;display:grid;gap:8px}
.contact-card .k{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--copper-600)}
.contact-card .v{font-size:clamp(1.2rem,1rem + 1vw,1.7rem);font-weight:650;font-stretch:110%;text-decoration:none;color:var(--ink-950);word-break:break-word}
.subject-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px;list-style:none;padding:0}
.subject-list li{margin:0}
.subject-list a{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r-1);background:var(--surface);text-decoration:none;font-weight:560;font-size:.94rem}
.subject-list a:hover{border-color:var(--copper-500)}
.subject-list a span{font-family:var(--f-mono);font-size:.7rem;color:var(--copper-600)}

/* Illustration helpers */
.ill{color:var(--ink-900)}
.ill .acc{color:var(--copper-500)}
.page-hero .ill,.section--dark .ill{color:var(--steel-300)}
.page-hero .ill .acc,.section--dark .ill .acc{color:var(--copper-400)}
.figure{margin:1.6em 0}
.figure figcaption{font-family:var(--f-mono);font-size:.74rem;color:var(--text-3);margin-top:10px;letter-spacing:.03em}

/* Principles */
.principles{counter-reset:pr;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
@media (max-width:760px){.principles{grid-template-columns:minmax(0,1fr)}}
.principle{counter-increment:pr;padding:28px 28px 28px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:56px 1fr;gap:12px}
.principle:nth-child(even){padding-left:28px;border-left:1px solid var(--line)}
@media (max-width:760px){.principle:nth-child(even){padding-left:0;border-left:0}}
.principle::before{content:counter(pr,decimal-leading-zero);font-family:var(--f-mono);font-size:.82rem;color:var(--copper-600);padding-top:4px}
.principle h3{margin-bottom:.35em}
.principle p{margin:0;color:var(--text-2);font-size:.96rem}

/* Utility */
.mt-0{margin-top:0}.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mt-3{margin-top:3rem}.mb-0{margin-bottom:0}.mb-2{margin-bottom:2rem}
.center{text-align:center}
.nowrap{white-space:nowrap}
.hide-sm{}
@media (max-width:680px){.hide-sm{display:none!important}}
.only-sm{display:none}
@media (max-width:680px){.only-sm{display:block}}
@media print{.site-header,.site-footer,.to-top,.cta-band,.mobile-nav,.read-progress{display:none!important}.page-hero,.hero{background:#fff;color:#000;margin:0;padding:0}.page-hero h1,.hero h1{color:#000}body{font-size:12pt}}

/* Glossary and definition lists */
.prose dl{display:grid;grid-template-columns:minmax(140px,220px) 1fr;gap:0;border-top:1px solid var(--line);margin:1em 0}
.prose dt,.prose dd{padding:12px 0;border-bottom:1px solid var(--line-2);margin:0}
.prose dd{padding-left:16px;color:var(--text-2)}
@media (max-width:600px){.prose dl{grid-template-columns:minmax(0,1fr)}.prose dt{border-bottom:0;padding-bottom:0}.prose dd{padding-left:0}}
.prose ol li::marker{color:var(--copper-600);font-family:var(--f-mono);font-size:.85em}

figure.viz,figure{margin:0}
.result .table-wrap{background:transparent;border-color:rgba(255,255,255,.14)}
.result .table-wrap th{background:rgba(255,255,255,.06);color:var(--steel-300)}
.result .table-wrap td{color:#fff;border-color:rgba(255,255,255,.08)}
.result .mono{color:var(--steel-400)}
.result .viz-readout{color:var(--text-2)}
@media (max-width:600px){.btn{white-space:normal;text-align:left;line-height:1.3}}

.tr-map-host{width:100%;background:transparent}
.tr-map-host svg{width:100%;height:auto;display:block}
.tr-map text.lbl{font-family:var(--f-mono)}