/* ============================================================
   ARKADIA — 01-foundation.css
   Design tokens, base elements, buttons, icons, header/logo
   Load order matters: this file continues the cascade of the previous one.
   ============================================================ */
:root{
  --white:#FFFFFF;
  --soft:#F8FAFC;
  --blue-50:#F1F6FA;
  --blue-100:#E3EDF6;
  --blue-200:#CCDCEB;
  --blue-300:#9DBAD5;
  --mid:#3D6C94;
  --navy:#1F3F5C;
  --deep:#132B42;
  --ink:#14212E;
  --ink-2:#3B4958;
  --muted:#5F6F80;
  --line:#D5E1EC;
  --red:#B1202D;
  --red-deep:#8E1822;
  --red-on-dark:#EC5360;
  --warm:#FBF8F4;
  --warm-2:#F3EDE5;
  --sans:"Urbanist",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --max:1240px;
  --gutter:clamp(20px,5vw,60px);
  --header-h:76px;
  --bleed:calc(max(0px,(100vw - var(--max)) / 2) + var(--gutter));
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (min-width:900px){:root{--header-h:96px}}
:root{--bl:var(--bleed)}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:calc(var(--header-h) + 28px + env(safe-area-inset-top,0px));-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--sans);font-size:1.0625rem;line-height:1.62;font-weight:450;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:clip}
@media (min-width:900px){body{font-size:1.125rem}}
img,svg{max-width:100%;display:block}
a{color:var(--navy);text-underline-offset:.2em;text-decoration-thickness:1px}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0;color:var(--navy);font-weight:800;line-height:1.08;letter-spacing:-.012em;text-wrap:balance}
h2{font-size:clamp(2rem,3.9vw,3.3rem);line-height:1.04}
h3{font-size:clamp(1.2rem,1.5vw,1.38rem);font-weight:700;line-height:1.22;letter-spacing:-.004em}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--mid);outline-offset:3px}
.on-dark :focus-visible{outline-color:#A9C8E4}
[data-focus]:focus{outline:none}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:16px;top:-80px;z-index:300;background:var(--navy);color:#fff;padding:12px 18px;font-weight:700;text-decoration:none}
.skip:focus{top:calc(12px + env(safe-area-inset-top,0px));color:#fff}

/* ============ TOXRES-Q™ wordmark — ONE global treatment ============ */
.tq{white-space:nowrap;font:inherit;color:inherit;letter-spacing:inherit}
.tq b{font-weight:inherit;color:var(--q,var(--red))}
@property --tqfs{syntax:"<length>";inherits:true;initial-value:16px}
.tq{--tqfs:1em}
.tq sup{font-size:max(calc(var(--tqfs) * .4),9px);font-weight:600;line-height:0;vertical-align:0;position:relative;top:calc(var(--tqfs) * -.5);margin-left:.16em;letter-spacing:0;color:inherit;opacity:.92}
.on-dark,.btn:not(.btn--ghost):not(.btn--light-ink){--q:var(--red-on-dark)}
.btn--red{--q:#fff}

/* ============ Layout / chapters ============ */
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter);position:relative}
.chapter{position:relative;overflow-x:clip;padding-block:clamp(84px,11vw,156px);--wm:var(--blue-100)}
.chapter--tight{padding-block:clamp(64px,8vw,104px)}
.bg-white{background:var(--white)}
.bg-blue{background:var(--blue-100);--wm:#D4E3F0;--line:#C7D8E8}
.bg-blue-soft{background:var(--blue-50);--wm:var(--blue-100)}
.bg-navy{background:var(--navy);color:#D8E4EF;--wm:rgba(255,255,255,.05);--line:rgba(255,255,255,.16)}
.bg-deep{background:var(--deep);color:#D8E4EF;--wm:rgba(255,255,255,.045);--line:rgba(255,255,255,.14)}
.bg-warm{background:var(--warm);--wm:var(--warm-2);--line:#E6DED3}
.bg-navy h2,.bg-navy h3,.bg-deep h2,.bg-deep h3{color:#fff}
.chapter > .wrap{z-index:1}
.lede{font-size:clamp(1.15rem,1.5vw,1.32rem);line-height:1.55;color:var(--ink-2);max-width:37rem;margin:0}
.on-dark .lede{color:#C4D4E3}
.head{display:grid;gap:24px;margin-bottom:clamp(44px,6vw,80px)}
@media (min-width:980px){.head--split{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:end;gap:72px}}
.serif{font-family:var(--serif)}
.muted{color:var(--muted)}
.ink2{color:var(--ink-2)}
.source{font-size:.86rem;color:var(--muted);max-width:54rem;line-height:1.5;margin:0}
.on-dark .source{color:#9FB6CA}

/* Watermark chapter numbers (architectural, decorative) */
.wm{position:absolute;right:calc(var(--gutter) * -0.4);top:clamp(10px,2vw,32px);font-weight:900;font-size:clamp(8rem,25vw,25rem);line-height:.78;letter-spacing:-.06em;color:var(--wm);pointer-events:none;user-select:none;z-index:0;font-variant-numeric:lining-nums}
.wm--left{right:auto;left:calc(var(--gutter) * -0.4)}
.wm--low{top:auto;bottom:-0.08em}

/* Vertical chapter labels (from the Business Overview) */

/* ============ Buttons ============ */
.btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn{--bg:var(--navy);--fg:#fff;--bd:var(--navy);display:inline-flex;align-items:center;gap:14px;min-height:54px;padding:0 24px;border-radius:2px;background:var(--bg);color:var(--fg);border:1.5px solid var(--bd);font-weight:800;font-size:.84rem;letter-spacing:.1em;text-transform:uppercase;text-decoration:none;cursor:pointer;transition:background-color .18s ease,border-color .18s ease,color .18s ease}
.btn::after{content:"";width:18px;height:2px;background:currentColor;transition:width .25s ease}
.btn:hover::after{width:30px}
.btn:hover{--bg:var(--deep);--bd:var(--deep);color:#fff}
.btn--red{--bg:var(--red);--bd:var(--red)}
.btn--red:hover{--bg:var(--red-deep);--bd:var(--red-deep)}
.btn--ghost{--bg:transparent;--fg:var(--navy);--bd:var(--navy)}
.btn--ghost:hover{--bg:var(--navy);--fg:#fff;--q:var(--red-on-dark)}
.btn--light{--bg:transparent;--fg:#fff;--bd:rgba(255,255,255,.55)}
.btn--light:hover{--bg:#fff;--fg:var(--navy);--bd:#fff;color:var(--navy);--q:var(--red)}
.btn:active{transform:translateY(1px)}
.link{display:inline-flex;align-items:center;gap:12px;font-weight:800;font-size:.84rem;letter-spacing:.1em;text-transform:uppercase;text-decoration:none;color:var(--navy);padding:6px 0}
.link::after{content:"";width:22px;height:2px;background:var(--red);transition:width .25s ease}
.link:hover::after{width:36px}
.on-dark .link{color:#fff}

/* ============ Icons ============ */
.ico{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ico--s{width:19px;height:19px}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.3) blur(14px);-webkit-backdrop-filter:saturate(1.3) blur(14px);border-bottom:1px solid transparent;transition:border-color .2s ease}
.site-header.is-scrolled{border-bottom-color:var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h)}
.logo{display:inline-flex;align-items:center;text-decoration:none;flex:none;line-height:0}
/* OFFICIAL LOGO — never recolor, redraw or distort. Keep clear space equal to the height of the "A". */
.logo__img{height:60px;width:auto;display:block}
@media (min-width:900px){.logo__img{height:80px}}
.site-footer .logo__img{height:auto;width:clamp(150px,15vw,190px)}
.nav{display:none}
.nav__list{list-style:none;display:flex;align-items:center;gap:2px}
.nav__link,.nav__btn{position:relative;display:inline-flex;align-items:center;gap:6px;padding:12px 14px;font-weight:700;font-size:.8rem;letter-spacing:.11em;text-transform:uppercase;color:var(--ink-2);text-decoration:none;background:none;border:0;cursor:pointer;white-space:nowrap}
.nav__link:hover,.nav__btn:hover{color:var(--navy)}
.nav__link::after,.nav__btn::after{content:"";position:absolute;left:14px;bottom:4px;height:2px;width:0;background:var(--red);transition:width .2s ease}
.nav__link[aria-current="page"],.nav__btn.is-current{color:var(--navy)}
.nav__link[aria-current="page"]::after,.nav__btn.is-current::after{width:18px}
.nav__btn svg{width:13px;height:13px;transition:transform .2s ease}
.nav__btn[aria-expanded="true"] svg{transform:rotate(180deg)}
.has-sub{position:relative}
.sub{position:absolute;top:calc(100% + 12px);left:0;min-width:270px;background:#fff;border:1px solid var(--line);border-top:2px solid var(--navy);box-shadow:0 24px 50px -30px rgba(19,43,66,.45);padding:8px;list-style:none;display:none}
.sub.is-open{display:block}
.sub a{display:block;padding:14px 14px;text-decoration:none;color:var(--navy);font-weight:700}
.sub a span{display:block;font-weight:450;font-size:.88rem;color:var(--muted);margin-top:2px}
.sub a:hover,.sub a[aria-current="page"]{background:var(--blue-50)}
.header-cta{display:none}
.menu-btn{display:inline-flex;align-items:center;justify-content:center;width:50px;height:50px;border:1px solid var(--line);background:#fff;color:var(--navy);cursor:pointer;border-radius:2px}
@media (min-width:1024px){.nav{display:block}.header-cta{display:inline-flex;min-height:46px;padding:0 20px;font-size:.78rem}.menu-btn{display:none}}
.mnav{position:fixed;inset:calc(var(--header-h) + env(safe-area-inset-top,0px)) 0 0 0;background:#fff;z-index:99;overflow-y:auto;padding:12px var(--gutter) calc(40px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--line)}
.mnav[hidden]{display:none}
.mnav ul{list-style:none}
.mnav > ul > li{border-bottom:1px solid var(--line)}
.mnav a{display:block;padding:18px 0;font-size:1.35rem;font-weight:800;color:var(--navy);text-decoration:none}
.mnav a[aria-current="page"]{color:var(--mid)}
.mnav .mnav__sub a{font-size:1.05rem;font-weight:600;color:var(--ink-2);padding:10px 0 10px 18px}
.mnav .mnav__sub{padding-bottom:10px}
.mnav .btn{width:100%;justify-content:center;margin-top:26px}
@media (min-width:1024px){.mnav{display:none!important}}
body.menu-open{overflow:hidden}