/* Rubytech LLC — site styles. Palette + scale from rubytech-design-tokens v2.0.0
   (light-first, near-monochrome, derived from the Affidea deck). */
:root{
  /* warm-grey neutral scale, sampled from the deck */
  --n-0:#ffffff; --n-50:#fafaf8; --n-100:#f5f5f3; --n-150:#eeeee9;
  --n-200:#e0e0db; --n-300:#d5d5d0; --n-400:#b5b5b0; --n-500:#a0a09a;
  --n-600:#888888; --n-700:#666666; --n-800:#3a3a3a; --n-850:#2a2a2a;
  --n-900:#1a1a1a; --n-1000:#000000;

  /* legacy ruby trace — links/focus only */
  --accent:#1a1a1a; --accent-bright:#1a1a1a; --ruby-muted:#591b21;

  /* semantic — light page, dark panel as restrained accent */
  --bg:#f5f5f3; --bg-soft:#fafaf8; --bg-ink:#1a1a1a;
  --text:#1a1a1a; --text-muted:#a0a09a; --text-dim:#b5b5b0;
  --text-on-ink:#f5f5f3; --text-on-ink-muted:#888888;
  --border:#e0e0db; --line:#d5d5d0; --border-ink:#3a3a3a;
  --paper:#fafaf8; --paper-50:#ffffff; --pill:#eeeee9;

  --font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --maxw:1200px;
  --r-sm:6px; --r-md:10px; --r-lg:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);color:var(--text);background:var(--bg);
  line-height:1.6;-webkit-font-smoothing:antialiased;font-size:17px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}

h1,h2,h3,h4{line-height:1.15;letter-spacing:-0.025em;font-weight:500;color:var(--text)}
.section h2{font-size:clamp(1.75rem,3.5vw,2.6rem);margin-bottom:14px;letter-spacing:-0.025em}
.eyebrow{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;font-weight:500;color:var(--text-muted);margin-bottom:18px}
.lede{font-size:clamp(1rem,1.4vw,1.25rem);color:var(--text-muted);max-width:none;line-height:1.5;font-weight:400}
p{max-width:68ch}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:.55em;font-weight:500;font-size:.96rem;
  padding:13px 26px;border-radius:var(--r-sm);transition:.18s ease;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--n-900);color:var(--n-100)}
.btn-primary:hover{background:var(--n-1000)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--n-900)}
.btn-on-ink{background:var(--n-100);color:var(--n-900)}
.btn-on-ink:hover{background:#fff}
.btn-ghost-ink{border-color:rgba(245,245,243,.28);color:var(--n-100)}
.btn-ghost-ink:hover{border-color:var(--n-100);background:rgba(245,245,243,.06)}
.arrow{transition:transform .18s ease}
.btn:hover .arrow{transform:translateX(3px)}

/* ---- header (light) ---- */
header.site{position:sticky;top:0;z-index:50;background:rgba(245,245,243,.85);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center}
.brand .logo{height:30px;width:91px;display:block;flex:none}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{color:var(--text-muted);font-size:.93rem;font-weight:500;transition:.15s}
.nav-links a:hover{color:var(--text)}
.nav-cta{display:inline-flex;align-items:center;gap:.5em;background:var(--n-900);color:var(--n-100);
  padding:10px 18px;border-radius:var(--r-sm);font-weight:500;font-size:.9rem}
.nav-cta:hover{background:var(--n-1000)}
.menu-btn{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}

/* ---- hero (light, deck two-tone headline) ---- */
.hero{background:var(--bg);color:var(--text);position:relative;overflow:hidden}
.hero .wrap{position:relative;z-index:2;padding:104px 28px 96px}
.hero h1{color:var(--text);font-size:clamp(2.5rem,6vw,5rem);max-width:none;letter-spacing:-0.035em;font-weight:500;line-height:1.1}
.hero h1 .dim{color:var(--text-dim);font-weight:300}
.hero .lede{color:var(--text-muted);margin-top:24px;font-size:clamp(1.1rem,2vw,1.35rem);max-width:760px}
.hero .cta-row{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap}
.hero-meta{margin-top:64px;display:flex;gap:40px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:30px}
.hero-meta .stat .n{font-size:clamp(2rem,3.5vw,2.8rem);font-weight:600;color:var(--text);letter-spacing:-0.035em;line-height:1}
.hero-meta .stat .l{font-size:.86rem;color:var(--text-muted);margin-top:4px;text-transform:uppercase;letter-spacing:.08em;font-weight:500}

/* ---- credibility band ---- */
.band{background:var(--bg-soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.band .wrap{padding:34px 28px;display:flex;align-items:center;gap:30px;flex-wrap:wrap;justify-content:center}
.band .label{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);font-weight:500}
.band .sectors{display:flex;gap:14px 30px;flex-wrap:wrap;justify-content:center}
.band .sectors span{font-size:.95rem;color:var(--text);font-weight:500}

/* ---- generic section ---- */
.section{padding:96px 0}
.section.ink{background:var(--bg-ink);color:var(--text-on-ink)}
.section.ink h2,.section.ink h3{color:var(--text-on-ink)}
.section.ink h1 .dim,.section.ink h2 .dim{color:var(--text-on-ink-muted)}
.section.soft{background:var(--bg-soft)}
.section-head{max-width:none;margin-bottom:52px}
.section.ink .section-head .lede{color:var(--text-on-ink-muted)}

/* ---- services grid ---- */
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--paper);border:1px solid var(--border);border-radius:var(--r-md);
  padding:30px 28px;transition:.2s ease}
.card:hover{border-color:var(--n-400);box-shadow:0 8px 24px rgba(0,0,0,.06);transform:translateY(-2px)}
.card .num{font-size:.82rem;font-weight:500;color:var(--text-muted);letter-spacing:.04em}
.card h3{font-size:1.2rem;margin:14px 0 10px;font-weight:500}
.card p{font-size:.97rem;color:var(--text-muted);max-width:48ch}
.card .tag{margin-top:16px;display:inline-block;font-size:.75rem;color:var(--text-muted);
  background:var(--pill);border:none;border-radius:100px;padding:5px 14px;text-transform:uppercase;letter-spacing:.08em;font-weight:500}

/* ---- selected work / proof cards ---- */
.work-card{display:flex;flex-direction:column;gap:10px;cursor:pointer;text-decoration:none}
.work-card .kicker{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);font-weight:500}
.work-card h3{font-size:1.34rem;margin:0;font-weight:500}
.work-card p{font-size:.98rem;color:var(--text-muted);max-width:54ch;margin:0}
.work-card .tag{margin-top:6px}
.work-card .read{margin-top:14px;font-weight:500;color:var(--text);font-size:.92rem}

/* ---- approach steps (inside dark accent panel) ---- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:8px}
.step{padding:24px 22px;border-radius:var(--r-md);background:var(--n-850);
  border:1px solid var(--border-ink);position:relative}
.step .s-n{width:32px;height:32px;border-radius:999px;background:var(--n-100);color:var(--n-900);
  display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.95rem;margin-bottom:16px}
.step h3{font-size:1.05rem;margin-bottom:8px;color:var(--text-on-ink);font-weight:500}
.step p{font-size:.9rem;color:var(--text-on-ink-muted);max-width:32ch}
.approach-note{margin-top:42px;padding:22px 28px;border-left:2px solid var(--n-100);
  background:rgba(245,245,243,.05);border-radius:0 var(--r-sm) var(--r-sm) 0}
.approach-note p{color:var(--text-on-ink);font-size:1.05rem;font-weight:500;max-width:74ch}

/* ---- insights ---- */
.insight{background:var(--paper);border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;
  display:flex;flex-direction:column;transition:.2s}
.insight:hover{box-shadow:0 8px 24px rgba(0,0,0,.07);transform:translateY(-2px);border-color:var(--n-400)}
.insight .top{height:4px;background:var(--n-900)}
.insight .body{padding:30px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.insight .kicker{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);font-weight:500}
.insight h3{font-size:1.28rem;line-height:1.2;font-weight:500}
.insight .standfirst{font-weight:500;color:var(--text);font-size:1.02rem}
.insight p{font-size:.96rem;color:var(--text-muted)}
.insight .read{margin-top:auto;padding-top:8px;font-weight:500;color:var(--text);font-size:.92rem}
a.insight{cursor:pointer}
a.insight:hover .read{text-decoration:underline}

/* ---- article page ---- */
.article-wrap{max-width:760px;margin:0 auto;padding:0 28px}
.article{padding:72px 0 96px}
.article .back{display:inline-flex;align-items:center;gap:.5em;font-size:.9rem;font-weight:500;
  color:var(--text-muted);margin-bottom:28px}
.article .back:hover{color:var(--text)}
.article .kicker{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);font-weight:500;margin-bottom:16px;display:block}
.article h1{font-size:clamp(2rem,4.4vw,3rem);color:var(--text);max-width:20ch;margin-bottom:20px;letter-spacing:-0.035em;font-weight:500}
.article .standfirst{font-size:1.3rem;color:var(--text-muted);max-width:60ch;line-height:1.5;margin-bottom:14px}
.article .meta{font-size:.85rem;color:var(--text-muted);font-weight:500;letter-spacing:.02em;
  padding-bottom:30px;margin-bottom:38px;border-bottom:1px solid var(--border)}
.article .body h2{font-size:1.5rem;color:var(--text);margin:40px 0 14px;letter-spacing:-0.025em;font-weight:500}
.article .body p{font-size:1.08rem;color:var(--text);margin-bottom:18px;max-width:66ch;line-height:1.68}
.article .body p.lead{font-size:1.18rem;color:var(--text-muted)}
.article .pull{margin:36px 0;padding:22px 28px;border-left:2px solid var(--n-900);
  background:var(--bg-soft);border-radius:0 var(--r-sm) var(--r-sm) 0}
.article .pull p{font-size:1.12rem;font-weight:500;color:var(--text);margin:0;max-width:62ch}
.article .end-note{margin-top:44px;padding-top:30px;border-top:1px solid var(--border)}
.article .end-note p{font-size:1rem;color:var(--text-muted);margin-bottom:18px}
.article-cta{display:flex;gap:14px;flex-wrap:wrap}

/* ---- about ---- */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:start}
.about-grid p{color:var(--text-muted);margin-bottom:18px;font-size:1.05rem;max-width:60ch}
.about-grid p strong{color:var(--text);font-weight:500}
.facts{border-left:1px solid var(--border);padding-left:34px}
.facts .f{margin-bottom:24px}
.facts .f .k{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);font-weight:500;margin-bottom:4px}
.facts .f .v{font-size:1.05rem;color:var(--text);font-weight:500}

/* ---- contact page ---- */
.contact-wrap{padding:80px 0 96px}
.contact-wrap .wrap{max-width:640px}
.contact-wrap .lede{max-width:60ch;margin-bottom:38px}
.contact-form{display:flex;flex-direction:column;gap:20px;max-width:560px}
.contact-form label{display:flex;flex-direction:column;gap:8px;font-size:.82rem;
  font-weight:500;letter-spacing:.02em;color:var(--text);width:100%}
.contact-form input,.contact-form textarea{
  width:100%;font-family:var(--font-sans);font-size:1rem;color:var(--text);
  background:var(--paper-50);border:1px solid var(--border);border-radius:var(--r-sm);
  padding:12px 14px;line-height:1.5;transition:border-color .15s ease,box-shadow .15s ease}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:var(--text-dim)}
.contact-form textarea{resize:vertical;min-height:140px}
.contact-form input:focus,.contact-form textarea:focus{
  outline:none;border-color:var(--n-900);box-shadow:0 0 0 3px rgba(26,26,26,.08)}
.contact-form .btn{align-self:flex-start;margin-top:4px}
.contact-note{font-size:.86rem;color:var(--text-muted);max-width:54ch;margin-top:6px}

/* ---- CTA + footer ---- */
.cta{background:var(--bg-ink);color:var(--text-on-ink);text-align:center}
.cta .wrap{padding:96px 28px}
.cta h2{color:var(--text-on-ink);font-size:clamp(2rem,4vw,3rem);max-width:20ch;margin:0 auto 18px;font-weight:500}
.cta h2 .dim{color:var(--text-on-ink-muted);font-weight:300}
.cta .eyebrow{max-width:none;text-align:center}
.cta .lede{color:var(--text-on-ink-muted);margin:0 auto 34px;text-align:center}
.cta .cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

footer.site{background:var(--bg-soft);color:var(--text-muted);padding:64px 0 36px;border-top:1px solid var(--border)}
.foot-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--border)}
.foot-lockup{display:flex;align-items:center;margin-bottom:18px}
.foot-lockup .logo{height:26px;width:79px;display:block;flex:none}
.foot-brand p{font-size:.94rem;max-width:38ch;color:var(--text-muted)}
.foot-col h4{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text);margin-bottom:16px;font-weight:500}
.foot-col a{display:block;font-size:.94rem;margin-bottom:10px;color:var(--text-muted);transition:.15s}
.foot-col a:hover{color:var(--text)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:26px;font-size:.85rem;color:var(--text-muted)}
/* ---- responsive ---- */
@media(max-width:960px){
  .grid-3,.grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .about-grid{grid-template-columns:1fr;gap:36px}
  .facts{border-left:none;border-top:1px solid var(--border);padding-left:0;padding-top:28px}
  .foot-top{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  body{font-size:16px}
  .nav-links{display:none}
  .menu-btn{display:block}
  .section{padding:64px 0}
  .hero .wrap{padding:72px 24px 80px}
  .steps{grid-template-columns:1fr}
  .hero-meta{gap:26px}
  .foot-top{grid-template-columns:1fr}
}