/* Eirvanta — shared stylesheet. Same design system as the AI Visibility
   Scorecard (scorecard.eirvanta.com): paper/ink/teal, Archivo headings,
   Instrument Sans body, IBM Plex Mono accents. */

:root{
  --paper:#EEF1EF; --card:#FFFFFF; --ink:#0E1B1E; --dim:#5B6B6D; --line:#D8DEDA;
  --accent:#0F6B5C; --accent-soft:rgba(15,107,92,.09); --warn:#B07A1E;
  --radius:10px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);
  font:16px/1.65 "Instrument Sans",system-ui,sans-serif}
.wrap{max-width:880px;margin:0 auto;padding:0 22px 70px}

/* ---------- header ---------- */
.topbar{display:flex;justify-content:space-between;align-items:center;
  padding:24px 0 0;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--ink)}
.wordmark{font:800 18px/1 "Archivo",sans-serif;letter-spacing:.02em}
.wordmark span{color:var(--accent)}
.brand .tag{font-size:11.5px;color:var(--dim);letter-spacing:.14em;text-transform:uppercase}
nav.site{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
nav.site a{color:var(--ink);text-decoration:none;font-size:14.5px;font-weight:500}
nav.site a:hover{color:var(--accent)}
nav.site a.cta{border:1.5px solid var(--ink);border-radius:8px;padding:8px 14px;
  font:700 13px "Archivo",sans-serif;letter-spacing:.03em;background:var(--ink);color:#fff}
nav.site a.cta:hover{background:var(--accent);border-color:var(--accent);color:#fff}

/* ---------- hero / page head ---------- */
.hero{padding:58px 0 26px}
.hero .machine-line{font:13px/1.5 "IBM Plex Mono",monospace;color:var(--accent);
  margin:0 0 10px;letter-spacing:.02em}
h1{font:700 clamp(30px,5vw,46px)/1.1 "Archivo",sans-serif;
  letter-spacing:-.015em;margin:0 0 14px;max-width:20ch}
.hero p.sub, p.sub{max-width:58ch;color:var(--dim);margin:0 0 8px;font-size:17.5px}
.crumb{font:600 13px "IBM Plex Mono",monospace;margin:26px 0 0}
.crumb a{color:var(--accent);text-decoration:none}

/* ---------- sections ---------- */
h2.sect{font:700 14px/1 "Archivo",sans-serif;letter-spacing:.1em;text-transform:uppercase;
  margin:44px 0 16px;display:flex;align-items:center;gap:12px}
h2.sect::after{content:"";flex:1;height:1.5px;background:var(--ink);opacity:.15}
h2.big{font:700 clamp(21px,3.2vw,27px)/1.2 "Archivo",sans-serif;letter-spacing:-.01em;
  margin:42px 0 12px}
h3{font:700 17px/1.3 "Archivo",sans-serif;margin:26px 0 8px}
p{margin:0 0 14px}
ul,ol{padding-left:22px;margin:10px 0 16px}
li{margin:6px 0}
a{color:var(--accent)}
strong{font-weight:600}
.lead-line{font-weight:600}
.accent{color:var(--accent);font-weight:600}

/* key-facts / callout cards */
.key-facts{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px 14px 34px;margin:18px 0}
.callout{background:var(--card);border:1.5px solid var(--ink);border-radius:12px;
  padding:20px 24px;margin:22px 0}
.callout.accent-edge{border:1px solid var(--line);border-left:3px solid var(--accent)}
.numbered{display:flex;gap:16px;align-items:baseline}
.numbered .num{font:800 26px/1 "Archivo",sans-serif;color:var(--accent);min-width:38px}

/* card grid */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:18px 0}
.grid .cell{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 18px}
.grid .cell .k{font-size:11px;letter-spacing:.11em;text-transform:uppercase;color:var(--dim);
  margin-bottom:6px;font-weight:600}
.grid .cell h3{margin:0 0 8px;font-size:16px}
.grid .cell p{margin:0;font-size:14.5px;color:var(--dim)}

/* buttons */
.btn{display:inline-block;padding:14px 24px;font:700 14.5px "Archivo",sans-serif;
  letter-spacing:.03em;border:1.5px solid var(--ink);border-radius:var(--radius);
  background:var(--ink);color:#fff;text-decoration:none;cursor:pointer}
.btn:hover{background:var(--accent);border-color:var(--accent)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.btnrow{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}

/* case study / product cards */
.feature-card{background:var(--card);border:1.5px solid var(--ink);border-radius:14px;
  padding:26px 28px;margin:20px 0}
.feature-card .eyebrow{font:600 11.5px "IBM Plex Mono",monospace;color:var(--accent);
  text-transform:uppercase;letter-spacing:.12em;margin:0 0 8px}
.feature-card h3{margin-top:0;font-size:21px}

/* scorecard cross-promo strip */
.promo{background:var(--ink);color:#E7EEEC;border-radius:14px;padding:22px 26px;
  margin:34px 0;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.promo .t{font:700 18px "Archivo",sans-serif;margin:0 0 4px}
.promo p{margin:0;color:rgba(231,238,236,.75);font-size:14.5px;max-width:52ch}
.promo a.btn{background:#fff;color:var(--ink);border-color:#fff}
.promo a.btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}

/* contact form */
form.contact{max-width:560px}
form.contact label{display:block;font:600 11.5px "Archivo",sans-serif;letter-spacing:.1em;
  text-transform:uppercase;color:var(--dim);margin:18px 0 6px}
form.contact input,form.contact textarea{width:100%;padding:13px 15px;
  font:500 15.5px "Instrument Sans",system-ui,sans-serif;border:1.5px solid var(--ink);
  border-radius:var(--radius);background:var(--card);color:var(--ink)}
form.contact input:focus,form.contact textarea:focus{outline:3px solid rgba(15,107,92,.35);outline-offset:1px}
form.contact .fine{color:var(--dim);font-size:13px;margin:12px 0}
.form-status{margin-top:14px;font-weight:600;min-height:1.5em}
.form-status.ok{color:var(--accent)}
.form-status.err{color:#A3342B}

/* footer */
footer.site{border-top:1px solid var(--line);margin-top:56px;padding-top:22px;
  color:var(--dim);font-size:13.5px}
footer.site .cols{display:flex;gap:28px;flex-wrap:wrap;justify-content:space-between}
footer.site a{color:var(--dim)}
footer.site a:hover{color:var(--accent)}
footer.site .legal{margin-top:14px}

@media (max-width:640px){
  .numbered{gap:10px}
  .promo{flex-direction:column;align-items:flex-start}
}