:root{
  --blue:#1A37D0;
  --mid:#2D8CFF;
  --sky:#6ACFF6;
  --ink:#07111f;
  --muted:#65728a;
  --soft:#f4f8ff;
  --line:#dfe7f4;
  --white:#fff;
  --gold:#e0a82e;
  --radius:28px;
  /* Deep blues used in the gradients, footer and hover states (previously raw hex). */
  --navy:#061331;
  --blue-deep:#101f90;
  /* RGB channels so rgba() opacity variants stay tied to the brand color. */
  --blue-rgb:26,55,208;
  --sky-rgb:106,207,246;
  --ink-rgb:7,17,31;
  --white-rgb:255,255,255;
  --gold-shadow-rgb:176,124,8;
  /* Darker neutral that meets AA on light fills (e.g. disabled button label). */
  --muted-strong:#4b5563;
  /* Semantic state colors for forms (used by demo-zcc-workitem.css). */
  --success:#1b7a3d;
  --success-bg:#e7f6ec;
  --success-line:#a7dcb8;
  --error:#b3261e;
  --error-bg:#fdecea;
  --error-line:#f3c0bb;
  /* Typeface (Figtree — geometric-humanist; loaded per page via Google Fonts). */
  --font-sans:'Figtree',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;
  /* Fluid type scale — sizes interpolate with the viewport, no breakpoint jumps. */
  --step-body:clamp(1rem,0.95rem + 0.32vw,1.125rem);       /* ~16→18px */
  --step-lead:clamp(1.125rem,1rem + 0.6vw,1.3125rem);      /* ~18→21px */
  /* Fluid vertical rhythm for sections. */
  --space-section:clamp(3.75rem,2.5rem + 5vw,5.75rem);     /* ~60→92px */
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);color:var(--ink);background:var(--white);line-height:1.6}
a{color:inherit;text-decoration:none}
/* Skip link: first focusable element on the page; hidden until focused (WCAG 2.4.1 Bypass Blocks). */
.skip-link{position:absolute;left:12px;top:-60px;z-index:60;padding:10px 16px;border-radius:0 0 12px 12px;background:var(--blue);color:var(--white);font-weight:700;font-size:14px;transition:top .2s ease}
.skip-link:focus{top:0;outline:2px solid var(--white);outline-offset:2px}
.header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:18px max(6vw,calc((100vw - 1280px)/2));background:rgba(var(--white-rgb),.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.brand img{height:46px;width:auto;display:block}
nav{display:flex;gap:22px;align-items:center;color:var(--muted);font-size:14px;font-weight:600}
nav a:hover{color:var(--blue)}
.nav-toggle{display:none;border:0;background:transparent;color:var(--ink);cursor:pointer;padding:6px;border-radius:10px;line-height:0}
.nav-toggle:hover{color:var(--blue)}
.nav-toggle:focus-visible,#primary-nav a:focus-visible,.lang-select:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:8px}
/* Visible focus for every other interactive control (WCAG 2.4.7 / 1.4.11). */
a:focus-visible,button:focus-visible,.button:focus-visible,.port-card:focus-visible,.brand:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:8px}
/* On the dark gradient sections the ring sits over navy — switch to a light ring. */
.hero :focus-visible,.dark :focus-visible,.final :focus-visible,.subhero :focus-visible,footer :focus-visible{outline-color:var(--sky)}
/* The fixed back-to-top button floats over arbitrary content — two-tone ring. */
.to-top:focus-visible{outline:2px solid var(--white);outline-offset:3px;box-shadow:0 0 0 5px rgba(var(--blue-rgb),.9)}
.nav-toggle svg{fill:currentColor}
.nav-toggle .ic-close{display:none}
.header.nav-open .nav-toggle .ic-menu{display:none}
.header.nav-open .nav-toggle .ic-close{display:block}
.nav-cta{padding:10px 16px;border-radius:999px;background:var(--blue);color:var(--white)!important;box-shadow:0 12px 30px rgba(var(--blue-rgb),.18)}
.lang-select{font-family:inherit;font-size:13px;font-weight:700;color:var(--muted);background:transparent;border:1px solid var(--line);border-radius:999px;padding:8px 10px;cursor:pointer}
.lang-select:hover{color:var(--blue);border-color:var(--blue)}
.hero{position:relative;overflow:hidden;min-height:84vh;display:grid;grid-template-columns:1.1fr .9fr;gap:46px;align-items:center;padding:112px max(6vw,calc((100vw - 1280px)/2)) 90px;color:var(--white);background:radial-gradient(circle at 83% 22%,rgba(var(--sky-rgb),.32),transparent 25%),linear-gradient(135deg,var(--blue-deep) 0%,var(--blue) 45%,var(--navy) 100%)}
.hero:before{content:"";position:absolute;inset:auto -8% -25% auto;width:520px;height:520px;border:90px solid rgba(var(--sky-rgb),.22);border-radius:34%;transform:rotate(45deg)}
.hero-copy{position:relative;z-index:2;max-width:920px}
.eyebrow{margin:0 0 14px;color:var(--blue);font-size:12px;letter-spacing:.13em;text-transform:uppercase;font-weight:800}
/* Sky reads only on the dark gradient sections; on light sections --blue gives 8.4:1. */
.hero .eyebrow,.dark .eyebrow,.final .eyebrow,.subhero .eyebrow{color:var(--sky)}
h1{font-size:clamp(46px,7vw,88px);line-height:.98;letter-spacing:-.03em;margin:0 0 24px;max-width:980px}
.lead{font-size:var(--step-lead);max-width:760px;color:rgba(var(--white-rgb),.82);margin:0 0 10px}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.button{display:inline-flex;align-items:center;justify-content:center;padding:14px 22px;border-radius:999px;font-weight:800;transition:.2s ease}
.button.primary{background:var(--sky);color:var(--navy);box-shadow:0 18px 50px rgba(var(--sky-rgb),.28)}
.button.primary:hover{transform:translateY(-2px)}
.button.ghost{border:1px solid rgba(var(--white-rgb),.32);color:var(--white);background:rgba(var(--white-rgb),.08)}
.hero-visual{position:relative;z-index:2;min-height:440px;display:grid;place-items:center}
.hero-visual img{width:min(480px,100%);height:auto;opacity:.95;filter:drop-shadow(0 40px 80px rgba(0,0,0,.22))}
.hero-chips{position:absolute;inset:0}
.hero-chip{position:absolute;top:50%;left:50%;padding:11px 16px;border-radius:999px;background:rgba(var(--white-rgb),.85);color:var(--blue);font-weight:800;white-space:nowrap;box-shadow:0 14px 34px rgba(0,0,0,.14);transform:translate(-50%,-50%) rotate(var(--a0)) translateX(var(--r)) rotate(calc(-1 * var(--a0)));will-change:transform}
.chip-cx{--a0:20deg;--r:clamp(56px,16vw,120px)}
.chip-voice{--a0:200deg;--r:clamp(64px,18vw,138px)}
.chip-insight{--a0:255deg;--r:clamp(72px,20vw,156px)}
.chip-integration{--a0:310deg;--r:clamp(80px,22vw,174px)}
.chip-intelligence{--a0:75deg;--r:clamp(86px,24vw,182px)}
.chip-ai{--a0:140deg;--r:clamp(90px,25vw,190px)}
.section{padding:var(--space-section) 6vw;max-width:1280px;margin:0 auto}
.section h2{font-size:clamp(32px,5vw,56px);line-height:1.04;letter-spacing:-.025em;margin:0 0 22px;max-width:880px}
.section p{font-size:var(--step-body);color:var(--muted);max-width:780px}
.intro{max-width:none;text-align:center;background:var(--soft);border-bottom:1px solid var(--line)}
.intro h2,.intro p{margin-left:auto;margin-right:auto}
.grid{display:grid;gap:18px;margin-top:34px}
.four{grid-template-columns:repeat(4,1fr)}
.portfolio{display:flex;flex-wrap:wrap;justify-content:center}
.portfolio .port-card{flex:0 1 calc(33.333% - 12px)}
article{padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 20px 60px rgba(var(--ink-rgb),.06)}
article span{display:inline-flex;margin-bottom:16px;color:var(--blue);font-weight:800}
.dark article span{color:var(--sky)}
article h3,article h4{font-size:20px;line-height:1.18;letter-spacing:-.01em;margin:0 0 12px}
article p{font-size:var(--step-body);margin:0;color:var(--muted)}
.dark{max-width:none;background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 100%);color:var(--white);position:relative;overflow:hidden}
.dark:after{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:44%;border:72px solid rgba(var(--sky-rgb),.24);transform:rotate(35deg)}
.dark>*{max-width:1280px;margin-left:auto;margin-right:auto;position:relative;z-index:2}
.dark article{background:rgba(var(--white-rgb),.08);border-color:rgba(var(--white-rgb),.16);box-shadow:none}
.dark article p{color:rgba(var(--white-rgb),.76)}
/* Portfolio families — grouped offerings on the homepage section and the /portfolio landing page. */
.port-family{margin-top:30px}
.port-family + .port-family{margin-top:46px}
.port-family-name{font-size:clamp(20px,2.6vw,28px);line-height:1.1;letter-spacing:-.02em;margin:0 0 8px}
.port-family-desc{color:var(--muted-strong)}
.dark .port-family-desc{color:rgba(var(--white-rgb),.78)}
.port-more{margin-top:42px;text-align:center}
.why{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.proofs{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.about{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start;border-top:1px solid var(--line)}
.about-body p{margin:0 0 18px}
.about-body p:last-child{margin-bottom:0}
.journey{background:var(--soft);border-radius:var(--radius);text-align:center}
.journey h2,.journey p{margin-left:auto;margin-right:auto}
.tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.tags span{padding:12px 16px;border:1px solid var(--line);border-radius:999px;background:var(--white);color:var(--blue);font-weight:800;box-shadow:0 14px 34px rgba(var(--ink-rgb),.04)}
.partners{text-align:center}.partners h2,.partners p{margin-left:auto;margin-right:auto}.partners .tags{justify-content:center}
.final{max-width:none;text-align:center;color:var(--white);background:linear-gradient(135deg,var(--blue),var(--navy))}
.final img{height:54px;width:auto;margin-bottom:28px}.final h2,.final p{margin-left:auto;margin-right:auto}.final p{color:rgba(var(--white-rgb),.8)}
footer{display:flex;flex-direction:column;gap:18px;align-items:center;text-align:center;padding:36px 6vw;background:var(--navy);color:rgba(var(--white-rgb),.7);font-size:14px}
footer img{height:42px;width:auto}
.footer-brand{display:flex;flex-direction:column;align-items:center;gap:12px;flex-wrap:wrap}
.footer-copy{margin:0;font-size:13px;color:rgba(var(--white-rgb),.5)}
.footer-legal{margin:0}
.footer-link{color:rgba(var(--white-rgb),.7);font-size:13px;text-decoration:underline;text-underline-offset:2px}
.footer-link:hover{color:var(--white)}
.social{display:flex;gap:12px;align-items:center}
.social a{display:grid;place-items:center;width:38px;height:38px;border-radius:999px;background:rgba(var(--white-rgb),.08);color:rgba(var(--white-rgb),.78);transition:background .2s,color .2s,transform .2s}
.social a:hover{background:rgba(var(--white-rgb),.18);color:var(--white);transform:translateY(-2px)}
.social svg{width:18px;height:18px;fill:currentColor}
.to-top{position:fixed;right:24px;bottom:24px;z-index:40;display:grid;place-items:center;width:48px;height:48px;border-radius:999px;background:var(--blue);color:var(--white);box-shadow:0 14px 34px rgba(var(--ink-rgb),.28);opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .25s ease,transform .25s ease,visibility .25s}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--blue-deep);transform:translateY(-3px)}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.to-top{transition:opacity .25s ease,visibility .25s}}
.subhero{position:relative;overflow:hidden;--sub-pb:clamp(56px,8vw,86px);padding:clamp(96px,12vw,150px) max(6vw,calc((100vw - 1280px)/2)) var(--sub-pb);color:var(--white);background:radial-gradient(circle at 85% 18%,rgba(var(--sky-rgb),.28),transparent 32%),linear-gradient(135deg,var(--blue-deep) 0%,var(--blue) 48%,var(--navy) 100%)}
.subhero-inner{max-width:840px;position:relative;z-index:2}
.subhero h1{font-size:clamp(36px,5vw,64px);line-height:1.03;letter-spacing:-.02em;margin:16px 0 20px}
.subhero .eyebrow a{color:var(--sky)}
.subhero .eyebrow a:hover{color:var(--white)}
.port-card{display:block;text-decoration:none;color:inherit}
.port-card article{height:100%;transition:transform .2s ease,box-shadow .2s ease}
.port-card:hover article{transform:translateY(-4px)}
/* Telco AI card — the Telco agent peeks from the bottom-right corner, behind the copy.
   The copy is held to the left column so it stays clear of (and readable over) the agent. */
.port-card--ai article{position:relative;overflow:hidden;isolation:isolate}
.port-card--ai article h3,.port-card--ai article h4,.port-card--ai article p{max-width:60%}
.port-card--ai article::after{content:"";position:absolute;right:0;bottom:0;width:46%;height:92%;background:url(/assets/telco-agentic-ai-transparent_bg.webp) right bottom/contain no-repeat;opacity:.95;pointer-events:none;z-index:-1;-webkit-mask-image:linear-gradient(to top left,#000 36%,transparent 76%);mask-image:linear-gradient(to top left,#000 36%,transparent 76%)}
.port-card--ai:hover article::after{opacity:1}
.three{grid-template-columns:repeat(3,1fr)}
.final .actions{justify-content:center}
.subhero-zoom{display:grid;grid-template-columns:1fr auto;gap:36px;align-items:start}
.subhero-zoom .subhero-inner{max-width:none}
.subhero-zoom h1{white-space:pre-line}
.hero-creds{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-start;justify-self:end}
.hero-creds img{height:clamp(150px,17vw,212px);width:auto;filter:drop-shadow(0 16px 36px rgba(0,0,0,.28))}
.section .cred-label{display:inline-block;font-size:15px;text-transform:uppercase;letter-spacing:.14em;font-weight:800;color:var(--blue);max-width:none;margin:44px 0 18px;padding-bottom:8px;border-bottom:3px solid var(--sky)}
.comp-list{list-style:none;padding:0}
.comp-list li{display:flex;align-items:center;gap:12px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 20px 60px rgba(var(--ink-rgb),.06);font-weight:700;color:var(--ink);font-size:15px;line-height:1.3}
.comp-list svg{width:28px;height:28px;flex:none;fill:var(--gold);filter:drop-shadow(0 2px 4px rgba(var(--gold-shadow-rgb),.35))}
.subhero-ai{display:grid;grid-template-columns:0.82fr 1.18fr;gap:24px;align-items:center}
.subhero-ai .subhero-inner{max-width:none}
.ai-figure{display:flex;justify-content:flex-end;align-self:end;margin-bottom:calc(-1 * var(--sub-pb))}
.ai-figure img{display:block;width:120%;max-width:none;height:auto;filter:drop-shadow(0 24px 50px rgba(0,0,0,.3))}
.video-section{text-align:center}
.video-section h2{margin-left:auto;margin-right:auto}
.video-wrap{margin:30px auto 0;max-width:920px;border-radius:var(--radius);overflow:hidden;box-shadow:0 30px 80px rgba(var(--ink-rgb),.2)}
.intro-video{display:block;width:100%;height:auto;background:var(--navy)}
@media(max-width:860px){.subhero-ai{grid-template-columns:1fr}.ai-figure{align-self:auto;justify-content:center}.ai-figure img{width:100%;max-width:320px;margin-top:8px}.subhero-zoom{grid-template-columns:1fr}.hero-creds{justify-self:start;margin-top:16px}.hero-creds img{height:clamp(132px,34vw,180px)}}
@media(max-width:1080px){.hero,.why,.about{grid-template-columns:1fr}.four,.three{grid-template-columns:repeat(2,1fr)}.portfolio .port-card{flex-basis:calc(50% - 9px)}.hero-visual{min-height:420px}.hero-visual img{width:min(360px,67vw)}}
@media(max-width:960px){.nav-toggle{display:inline-flex}#primary-nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:rgba(var(--white-rgb),.98);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);box-shadow:0 24px 44px rgba(var(--ink-rgb),.12);padding:6px max(6vw,calc((100vw - 1280px)/2)) 16px;display:none}.header.nav-open #primary-nav{display:flex}#primary-nav a{padding:13px 4px;font-size:16px;border-bottom:1px solid var(--line)}#primary-nav .nav-cta{margin:12px 0 4px;justify-content:center;border-bottom:0}#primary-nav .lang-select{margin-top:10px;align-self:flex-start}}
@media(max-width:720px){.hero{padding-top:70px}.hero-visual{min-height:360px}.hero-visual img{width:min(276px,65vw)}.hero-chip{padding:8px 13px;font-size:13px}.four,.three,.proofs{grid-template-columns:1fr}.portfolio .port-card{flex-basis:100%}footer{align-items:center}}