/* Clarity & Pace — site styles. Brand: Ink/Paper carry; green is an accent. */

/* ---------- Fonts ---------- */
@font-face{font-family:"Space Grotesk";src:url("../fonts/space-grotesk-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Space Grotesk";src:url("../fonts/space-grotesk-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"Space Grotesk";src:url("../fonts/space-grotesk-700.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/inter-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/inter-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/inter-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}

/* ---------- Tokens ---------- */
:root{
  --ink:#22262B; --green:#1F4A3A; --paper:#F4F2EE; --slate:#4A4F55;
  --cloud:#FBF9F4; --line:#D9D3C7; --green-light:#6DB29A; --mist:#E7EFEA;
  --maxw:1120px;
  --sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --display:"Space Grotesk","Inter",system-ui,Arial,sans-serif;
  --sp:clamp(64px,9vw,112px);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);font-size:18px;line-height:1.62;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 1.1em}
strong{font-weight:600}
::selection{background:var(--mist)}

h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.12;letter-spacing:-.02em;margin:0 0 .5em;color:var(--ink)}
h1{font-size:clamp(2.15rem,5.2vw,3.4rem);font-weight:700;line-height:1.06}
h2{font-size:clamp(1.6rem,3.4vw,2.25rem)}
h3{font-size:clamp(1.15rem,2.1vw,1.4rem)}
.lead{font-size:clamp(1.12rem,1.8vw,1.32rem);line-height:1.55;color:var(--ink)}
.muted{color:var(--slate)}

/* ---------- Layout ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:var(--sp) 0}
.section--tight{padding:calc(var(--sp) * .62) 0}
.section--cloud{background:var(--cloud);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--ink{background:var(--ink);color:var(--paper)}
.section--ink h1,.section--ink h2,.section--ink h3{color:var(--paper)}
.narrow{max-width:720px}
.center{text-align:center}

/* Eyebrow: small green marker + label (brand's sparing green rule) */
.eyebrow{display:flex;align-items:center;gap:12px;font-family:var(--display);font-weight:600;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green);margin:0 0 1.1em}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--green);display:inline-block;flex:none}
.section--ink .eyebrow{color:var(--green-light)}
.section--ink .eyebrow::before{background:var(--green-light)}

/* ---------- Buttons / links ---------- */
.btn{display:inline-flex;align-items:center;gap:.6em;font-family:var(--display);font-weight:600;font-size:1rem;letter-spacing:-.01em;padding:.85em 1.4em;border-radius:2px;background:var(--ink);color:var(--paper);border:1px solid var(--ink);transition:background .18s,border-color .18s,transform .18s}
.btn:hover{background:var(--green);border-color:var(--green)}
.btn .arw{transition:transform .18s}
.btn:hover .arw{transform:translateX(3px)}
.section--ink .btn{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.section--ink .btn:hover{background:var(--green-light);border-color:var(--green-light);color:var(--ink)}
.link-arrow{display:inline-flex;align-items:center;gap:.5em;font-family:var(--display);font-weight:600;color:var(--green);border-bottom:1px solid transparent;transition:border-color .18s}
.link-arrow .arw{transition:transform .18s}
.link-arrow:hover{border-color:var(--green)}
.link-arrow:hover .arw{transform:translateX(3px)}
.section--ink .link-arrow{color:var(--green-light)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(244,242,238,.9);backdrop-filter:saturate(1.1) blur(8px);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center}
.brand svg,.brand img{height:26px;width:auto}
.nav-menu{display:flex;align-items:center;gap:30px;list-style:none;margin:0;padding:0}
.nav-menu a{font-family:var(--display);font-weight:500;font-size:.98rem;color:var(--ink);padding:4px 0;border-bottom:2px solid transparent;transition:border-color .18s,color .18s}
.nav-menu a:hover{color:var(--green)}
.nav-menu a.active{border-color:var(--green);color:var(--green)}
.nav-cta{margin-left:6px}
.nav-menu a.btn{color:var(--paper);border-bottom:0;padding:.72em 1.25em}
.nav-menu a.btn:hover{color:var(--paper);border-color:var(--green)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;margin:-8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:transform .2s,opacity .2s}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden}
.hero .container{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding-top:clamp(56px,7vw,92px);padding-bottom:clamp(56px,7vw,92px)}
.hero h1{margin-bottom:.32em}
.hero .lead{max-width:34ch}
.hero-cta{margin-top:1.8em;display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.hero-art{position:relative;min-height:280px}
.hero-art svg{width:100%;height:auto}

/* ---------- Motif / decoration ---------- */
.watermark{position:absolute;pointer-events:none;opacity:.05;width:min(46vw,520px);right:-60px;bottom:-80px;z-index:0}
.section>.container{position:relative;z-index:1}

/* ---------- Grids & cards ---------- */
.grid{display:grid;gap:28px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{background:var(--cloud);border:1px solid var(--line);border-radius:4px;padding:30px 28px;transition:border-color .18s,transform .18s}
.card:hover{border-color:var(--green-light)}
.card .num{font-family:var(--display);font-weight:600;font-size:.82rem;letter-spacing:.12em;color:var(--green)}
.card h3{margin:.5em 0 .35em}
.card p:last-child{margin-bottom:0}
.card .tag{display:block;margin-top:1em;font-size:.94rem;color:var(--slate)}
.card .tag b{color:var(--ink);font-weight:600}

/* Service rows */
.service{display:grid;grid-template-columns:56px 1fr;gap:26px;padding:38px 0;border-top:1px solid var(--line)}
.service:first-of-type{border-top:0}
.service .idx{font-family:var(--display);font-weight:700;font-size:1.5rem;color:var(--green)}
.service .kicker{font-style:italic;color:var(--slate);margin:-.2em 0 .8em}
.service .tag{display:block;margin-top:1em;font-size:.96rem;color:var(--slate)}
.service .tag b{color:var(--ink);font-weight:600}

/* Method steps */
.steps{counter-reset:step;display:grid;gap:0}
.step{display:grid;grid-template-columns:64px 1fr;gap:26px;padding:32px 0;border-top:1px solid var(--line)}
.step:first-child{border-top:0}
.step .n{font-family:var(--display);font-weight:700;font-size:1.9rem;color:var(--green-light);line-height:1}
.step h3{margin-bottom:.3em}

/* Principles / feature list */
.features{list-style:none;margin:0;padding:0;display:grid;gap:22px;grid-template-columns:repeat(2,1fr)}
.features li{padding-left:20px;border-left:2px solid var(--green-light)}
.features b{font-family:var(--display);font-weight:600}

/* Case studies */
.case{background:var(--cloud);border:1px solid var(--line);border-radius:4px;padding:clamp(28px,4vw,44px);margin-bottom:32px}
.case .sector{font-family:var(--display);font-weight:600;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--green)}
.case h3{margin:.5em 0 .15em;font-size:clamp(1.25rem,2.4vw,1.6rem)}
.case .role{font-style:italic;color:var(--slate);margin:0 0 1.4em}
.case .parts{display:grid;gap:22px;grid-template-columns:repeat(3,1fr)}
.case .part .plabel{font-family:var(--display);font-weight:600;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--slate);margin:0 0 .5em;display:flex;align-items:center;gap:8px}
.case .part .plabel::before{content:"";width:14px;height:2px;background:var(--green);flex:none}
.case .part p{font-size:.98rem;line-height:1.55;margin:0}

/* Quote / note */
.quote{background:var(--mist);border-radius:4px;padding:clamp(28px,4vw,44px);font-size:clamp(1.1rem,1.9vw,1.35rem);line-height:1.5;font-family:var(--display);font-weight:500;color:var(--ink)}
.quote .by{display:block;margin-top:1em;font-family:var(--sans);font-weight:600;font-size:.95rem;color:var(--green)}

/* About */
.about-grid{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.portrait{border-radius:4px;border:1px solid var(--line);width:100%;height:auto}
.portrait-cap{margin-top:14px;font-family:var(--display);font-weight:600}
.portrait-cap span{display:block;font-family:var(--sans);font-weight:400;color:var(--slate);font-size:.95rem}

/* Split CTA */
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{margin:0;max-width:22ch}

/* Contact */
.contact-email{font-family:var(--display);font-weight:600;font-size:clamp(1.3rem,3vw,1.9rem);color:var(--green);border-bottom:1px solid var(--line);transition:border-color .18s}
.contact-email:hover{border-color:var(--green)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#C9CCcf}
.site-footer .container{padding-top:64px;padding-bottom:48px}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:start;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
.foot-brand svg,.foot-brand img{height:28px;margin-bottom:18px}
.foot-brand p{max-width:34ch;color:#AEB2B6}
.foot-nav{display:flex;gap:60px;flex-wrap:wrap}
.foot-nav h4{font-family:var(--display);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--green-light);margin:0 0 1em}
.foot-nav ul{list-style:none;margin:0;padding:0;display:grid;gap:.6em}
.foot-nav a{color:#C9CCcf}
.foot-nav a:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:28px;font-size:.86rem;color:#8E9296}
.foot-bottom a{color:#8E9296}.foot-bottom a:hover{color:#C9CCcf}

/* ---------- Responsive ---------- */
@media(max-width:860px){
  .nav-menu{position:fixed;inset:76px 0 auto 0;flex-direction:column;align-items:flex-start;gap:0;background:var(--paper);border-bottom:1px solid var(--line);padding:8px 24px 20px;transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .2s,transform .2s,visibility .2s}
  .nav-menu.is-open{opacity:1;visibility:visible;transform:none}
  .nav-menu li{width:100%}
  .nav-menu a{display:block;width:100%;padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-menu a.active{border-color:var(--line);color:var(--green)}
  .nav-cta{margin:16px 0 0}
  .nav-cta .btn{width:100%;justify-content:center}
  .nav-toggle{display:block}
  .hero .container{grid-template-columns:1fr;gap:8px}
  .hero-art{display:none}
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .about-grid{grid-template-columns:1fr;gap:28px}
  .portrait{max-width:260px}
  .foot-top{grid-template-columns:1fr;gap:32px}
}
@media(max-width:560px){
  body{font-size:17px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .features{grid-template-columns:1fr}
  .case .parts{grid-template-columns:1fr;gap:18px}
  .service{grid-template-columns:1fr;gap:10px}
  .service .idx{font-size:1.2rem}
  .step{grid-template-columns:1fr;gap:8px}
  .cta-band .container{flex-direction:column;align-items:flex-start}
}