/* Cainhill Design Guide — A1 Architectural wordmark, M4 Signal motif.
   Approved direction (2026-10-21). Working colour spec — final accessibility/
   production approval pending. Deep ink is dominant; Soft Off-White for
   backgrounds (not stark white); Warm Stone for structure; Muted Ochre kept
   below ~8-10% and reserved for decision points / active states / the Signal
   terminal. */
:root{
  /* approved working palette */
  --ink:#0D182A;          /* Deep Ink — dominant */
  --ink-soft:#31415B;     /* derived: secondary ink text (AA on off-white) */
  --muted:#5B6B84;        /* derived: captions/metadata (AA) */
  --stone:#E6E2DA;        /* Warm Stone — panels, neutral components */
  --paper:#F2EFE8;        /* Soft Off-White — primary background */
  --paper-2:#EDEAE2;      /* derived: alternate light band (off-white, not white) */
  --ochre:#C79A3B;        /* Muted Ochre — decision/active/Signal terminal */
  --ochre-deep:#A97F2A;   /* derived: ochre text on light (AA) */
  --white:#FFFFFF;        /* reversed / functional contrast */
  /* rules & structure */
  --line:#D6D1C6;
  --line-soft:#E4E0D7;
  --radius:3px;
  --shadow:0 1px 2px rgba(13,24,42,.05), 0 10px 30px rgba(13,24,42,.06);
  --maxw:1120px;
  /* type — final brand typeface not yet approved; precise humanist sans for
     body/labels per the guide (sentence case headings). Inter is a stand-in
     for the not-yet-approved face. */
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --serif:'Newsreader', Georgia, serif; /* display only, until type approved */
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);font-size:16px;line-height:1.68;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--sans);font-weight:600;letter-spacing:-.01em;line-height:1.16}
a{color:var(--ink);text-decoration:none;transition:color .15s ease}
a:hover{color:var(--ochre-deep)}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--sans);font-size:12.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
/* ---- M4 Signal motif (4 stepped right-angle lines -> ochre terminal square) ---- */
.signal{display:inline-block;flex:0 0 auto}
.signal path{fill:none;stroke:var(--ink);stroke-width:1.9}
.signal .term{fill:var(--ochre);stroke:none}
/* ---- nav ---- */
.nav{position:sticky;top:0;z-index:50;background:rgba(242,239,232,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-soft)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:12px}
.brand-name{font-family:var(--sans);font-size:19px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--ink)}
.brand-tag{font-size:12px;color:var(--muted);letter-spacing:.02em}
.nav-links{display:flex;gap:28px;font-size:13.5px;font-weight:500;letter-spacing:.02em}
.nav-links a{color:var(--ink-soft)}
.nav-links a:hover{color:var(--ochre-deep)}
.nav-cta{font-size:12.5px;font-weight:600;letter-spacing:.02em;padding:10px 18px;border:1px solid var(--ink);border-radius:var(--radius);background:var(--ink);color:var(--white);transition:background .15s ease,border-color .15s ease}
.nav-cta:hover{background:var(--ochre-deep);border-color:var(--ochre-deep);color:#fff}
/* ---- hero ---- */
.hero{padding:104px 0 92px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background:url('/img/hero-texture.jpg') center/cover no-repeat;
  opacity:.8;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg, var(--paper) 0%, rgba(247,244,239,.94) 40%, rgba(247,244,239,.5) 68%, rgba(247,244,239,.15) 100%);
  pointer-events:none}
.hero>*{position:relative;z-index:1}
.hero h1{font-size:clamp(34px,5vw,52px);max-width:20ch;margin:18px 0 18px;letter-spacing:-.02em}
.hero-sub{font-size:19px;color:var(--ink-soft);max-width:56ch}
.hero-cta{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;font-size:15px;font-weight:600;padding:13px 24px;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;transition:all .15s ease;letter-spacing:.01em}
.btn-primary{background:var(--ink);color:var(--white)}
.btn-primary:hover{background:var(--ochre-deep);border-color:var(--ochre-deep);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink);background:var(--stone)}
.hero-meta{display:flex;gap:40px;margin-top:58px;flex-wrap:wrap}
.hero-meta div{font-size:13.5px;color:var(--muted);max-width:26ch}
.hero-meta strong{display:block;font-family:var(--sans);font-size:15px;color:var(--ink);font-weight:600;margin-bottom:3px}
/* ---- section header ---- */
.sec-head{margin-bottom:46px;max-width:64ch}
.sec-head h2{font-size:clamp(26px,3.2vw,34px);margin:14px 0 12px}
.sec-head p{color:var(--muted);font-size:16.5px}
/* ---- cards / offers ---- */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--white);border:1px solid var(--line-soft);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:border-color .18s ease}
.card:hover{border-color:var(--ochre)}
.card h3{font-size:19px;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--muted)}
.offer{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:30px 0;border-bottom:1px solid var(--line)}
.offer:first-child{border-top:1px solid var(--line)}
.offer h3{font-size:20px;margin-bottom:8px}
.offer .tag{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ochre-deep)}
.offer p{color:var(--muted);font-size:14.5px;margin-bottom:12px}
.offer ul{list-style:none;font-size:14px;color:var(--ink-soft)}
.offer li{padding:4px 0 4px 18px;position:relative}
.offer li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--ochre)}
/* ---- process steps (ordered stepped progression) ---- */
.steps{counter-reset:step;display:grid;gap:0;border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:92px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--line)}
.step::before{counter-increment:step;content:"0" counter(step);font-family:var(--sans);font-size:15px;color:var(--ochre-deep);font-weight:700;letter-spacing:.08em}
.step h3{font-size:19px;margin-bottom:6px}
.step p{color:var(--muted);font-size:14.5px}
/* ---- founder ---- */
.founder{display:grid;grid-template-columns:0.85fr 1.15fr;gap:56px;align-items:start}
.founder-photo{aspect-ratio:4/5;border-radius:var(--radius);background:linear-gradient(160deg,#EAE6DE 0%,#DCD8CE 55%,#CFCABF 100%);display:flex;align-items:center;justify-content:center;border:1px solid var(--line);box-shadow:var(--shadow);position:relative;overflow:hidden}
.founder-photo::after{content:"PC";font-family:var(--sans);font-size:64px;color:rgba(13,24,42,.16);letter-spacing:.02em}
.founder h2{font-size:30px;margin:12px 0 6px}
.founder .role{font-size:14px;color:var(--muted);margin-bottom:20px;letter-spacing:.02em}
.founder p{color:var(--ink-soft);font-size:15.5px;margin-bottom:14px}
.cred-list{list-style:none;margin-top:22px;border-top:1px solid var(--line)}
.cred-list li{padding:11px 0;border-bottom:1px solid var(--line-soft);font-size:14.5px;color:var(--ink-soft);display:flex;gap:12px}
.cred-list li::before{content:"";flex:0 0 6px;height:6px;background:var(--ochre);margin-top:9px}
/* ---- principles ---- */
.principle{padding:22px 0;border-bottom:1px solid var(--line-soft)}
.principle h3{font-size:17px;margin-bottom:6px}
.principle p{color:var(--muted);font-size:14.5px}
/* ---- contact / form ---- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:var(--ink-soft);letter-spacing:.01em}
.field input,.field select,.field textarea{width:100%;font-family:var(--sans);font-size:15px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ochre);box-shadow:0 0 0 3px rgba(199,154,59,.22)}
.field textarea{min-height:110px;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px}
/* ---- footer (Deep Ink field; reversed lock-up) ---- */
.footer{background:var(--ink);color:#C4CBD8;padding:56px 0 32px;margin-top:40px}
.footer a{color:#C4CBD8}
.footer a:hover{color:#fff}
.footer-top{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:36px}
.footer .brand-name{color:#fff}
.footer .signal path{stroke:#fff}
.footer p{font-size:13.5px;max-width:40ch}
.footer-cols{display:flex;gap:56px;flex-wrap:wrap}
.footer-col h4{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#8A93A6;margin-bottom:12px;font-family:var(--sans)}
.footer-col a{display:block;font-size:14px;padding:4px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:22px;font-size:12.5px;color:#8A93A6;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media (max-width:860px){
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .offer{grid-template-columns:1fr;gap:10px}
  .founder{grid-template-columns:1fr;gap:32px}
  .founder-photo{max-width:320px}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .nav-links{display:none}
  .step{grid-template-columns:1fr;gap:10px;padding:26px 0}
  .step::before{font-size:13px;margin-bottom:-4px}
  .section{padding:60px 0}
  .hero{padding:72px 0 64px}
  .hero::before{opacity:.55}
}