/* Liberfy — production stylesheet
   Built from the approved v0.02 design mock. Warm editorial × system.
   Light + dark (system preference), responsive, accessible. */

:root{
  --paper:#F3F5F4;
  --ink:#16211F;
  --ink-72:rgba(22,33,31,.72);
  --ink-65:rgba(22,33,31,.65);
  --ink-55:rgba(22,33,31,.55);
  --amber:#C8891E;
  --amber-deep:#7C520F;
  --amber-soft:rgba(200,137,30,.10);
  --line:rgba(22,33,31,.12);
  --line-soft:rgba(22,33,31,.08);
  --card:#ffffff;
  /* Text on an INVERTED accent panel (the dark cards / CTA blocks).
     These panels flip with the theme, so their text colour must flip too. */
  --ink-invert:#F3F5F4;
  --on-invert-muted:rgba(243,245,244,.72);
  --on-invert-faint:rgba(243,245,244,.5);

  --serif:"Iowan Old Style","Charter","Palatino Linotype",Palatino,Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  --maxw:1200px;
  --pad:clamp(1.25rem,5vw,4rem);
}

@media (prefers-color-scheme:dark){
  :root{
    --paper:#101917;
    --ink:#EDEFEA;
    --ink-72:rgba(237,239,234,.72);
    --ink-65:rgba(237,239,234,.6);
    --ink-55:rgba(237,239,234,.5);
    --amber-deep:#E0A43A;
    --amber-soft:rgba(200,137,30,.14);
    --line:rgba(237,239,234,.12);
    --line-soft:rgba(237,239,234,.08);
    --card:#16211F;
    --ink-invert:#101917;
    --on-invert-muted:rgba(16,25,23,.75);
    --on-invert-faint:rgba(16,25,23,.55);
  }
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);
  font-size:clamp(1rem,.96rem + .2vw,1.06rem);line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--serif);font-weight:400;letter-spacing:-.01em;text-wrap:balance;margin:0}
img,svg{max-width:100%}

.container{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.eyebrow{font:500 .8rem var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--amber-deep);margin:0 0 1.4rem}

/* hand-drawn amber underline, used sparingly */
.scribble{position:relative;font-style:italic;color:var(--amber-deep);white-space:nowrap}
.scribble::after{
  content:"";position:absolute;left:0;right:0;bottom:-.18em;height:.42em;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 220 12' preserveAspectRatio='none'%3E%3Cpath d='M3 7 C 50 3, 110 10, 216 6' fill='none' stroke='%23C8891E' stroke-width='2.4' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat;
  background-size:100% 100%;
}

/* buttons */
.btn{display:inline-block;border-radius:999px;padding:.9rem 1.75rem;font:600 .95rem var(--sans);transition:transform .18s ease,background .18s ease,opacity .18s ease;cursor:pointer;border:none}
.btn-ink{background:var(--ink);color:var(--ink-invert)}
.btn-ink:hover{transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#16211F}
.btn-amber:hover{transform:translateY(-2px);opacity:.92}
.link-arrow{font:600 .9rem var(--sans);color:var(--amber-deep);border-bottom:1px solid var(--amber);padding-bottom:2px}
.link-arrow:hover{opacity:.7}

a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:2px}

/* header / nav */
.site-header{border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:1.4rem;padding-bottom:1.4rem}
.wordmark{font:600 1.32rem var(--serif);letter-spacing:.03em}
.wordmark .dot{color:var(--amber)}
.nav-links{display:flex;gap:2rem;align-items:center;font:500 .9rem var(--sans)}
.nav-links a[aria-current="page"]{border-bottom:2px solid var(--amber);padding-bottom:3px;font-weight:600}
.nav-cta{background:var(--ink);color:var(--ink-invert);padding:.65rem 1.35rem;border-radius:999px;font-weight:600}
.nav-cta:hover{opacity:.92}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:.4rem}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;margin:5px 0}
.nav-toggle span:last-child{width:14px}

/* sections */
main section{padding:clamp(2.5rem,6vh,4rem) 0}
.section-divider{border-top:1px solid var(--line)}
.lede{font-size:1.15rem;max-width:42rem;margin:0 0 1rem}
.muted{color:var(--ink-65)}

/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,3.5rem);align-items:center;padding:clamp(3rem,8vh,5.5rem) 0}
.hero-title{font-size:clamp(2.6rem,1.8rem + 3.6vw,4rem);line-height:1.06}
.hero-sub{font-size:clamp(1.05rem,1rem + .3vw,1.2rem);color:var(--ink-72);max-width:34rem;margin:2rem 0 0}
.cta-row{display:flex;gap:1.1rem;align-items:center;flex-wrap:wrap;margin-top:2.2rem}

/* page header (inner pages) */
.page-header{padding:clamp(3rem,7vh,5rem) 0 clamp(2rem,4vh,3.5rem);max-width:56rem}
.page-title{font-size:clamp(2.2rem,1.7rem + 2.4vw,3.4rem);line-height:1.12}
.page-header p{font-size:1.1rem;color:var(--ink-72);max-width:40rem;margin:1.8rem 0 0}

/* schematic card */
.schematic{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:1.6rem 1.75rem;box-shadow:0 18px 44px rgba(22,33,31,.08)}
.schematic-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:1.1rem}
.schematic-head span{font:600 .72rem var(--sans);letter-spacing:.13em;text-transform:uppercase;color:var(--amber-deep)}
.flow-row{display:flex;align-items:center;gap:.9rem}
.flow-node{flex:1;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:.8rem 1rem;font:600 .9rem var(--sans)}
.flow-node .sub{font-weight:400;color:var(--ink-55)}
.flow-node.you{background:var(--amber-soft);border:1.5px solid var(--amber)}
.flow-node.you b{font:italic 600 .95rem var(--serif)}
.flow-tag{flex:none;width:3rem;text-align:right;font:600 .66rem var(--sans);letter-spacing:.1em;color:var(--amber-deep)}
.flow-link{width:1px;height:18px;background:var(--amber);opacity:.7;margin:2px 0 2px 30px}

/* method strip */
.method-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:2.5rem;border-top:1px solid var(--line);padding-top:2.5rem}
.method-strip h3{font:italic 400 1.7rem var(--serif);color:var(--amber-deep)}
.method-strip p{margin:.7rem 0 0;color:var(--ink-72);font-size:.95rem}

/* section heading row */
.head-row{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;margin-bottom:2rem;flex-wrap:wrap}
.head-row h2,.section-h2{font-size:clamp(1.7rem,1.4rem + 1.3vw,2.5rem)}

/* spec sheet */
.specsheet{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.spec-row{display:grid;grid-template-columns:96px 1fr 1.4fr 130px;gap:1rem;padding:1.25rem 1.75rem;align-items:baseline;border-bottom:1px solid var(--line-soft)}
.spec-row:last-child{border-bottom:none}
.spec-head{font:600 .68rem var(--sans);letter-spacing:.13em;text-transform:uppercase;color:var(--ink-55);border-bottom:1px solid var(--line)}
.spec-ref{font:600 .74rem var(--sans);letter-spacing:.08em;color:var(--amber-deep)}
.spec-name{font:600 1.1rem var(--serif)}
.spec-desc{font-size:.9rem;color:var(--ink-65)}
.spec-run{font:600 .66rem var(--sans);letter-spacing:.1em;color:var(--amber-deep);text-align:right}
.spec-row.custom{background:var(--amber-soft)}

/* how we work preview (4 across) */
.steps4{display:grid;grid-template-columns:1fr 40px 1fr 40px 1fr 40px 1fr;align-items:start}
.steps4 .step .n{font:italic 400 2.5rem var(--serif);color:var(--amber-deep)}
.steps4 .step h3{font:600 1.05rem var(--sans);margin:.5rem 0 .4rem}
.steps4 .step p{margin:0;color:var(--ink-65);font-size:.9rem}
.steps4 .arrow{display:flex;align-items:center;justify-content:center;padding-top:1rem;color:var(--amber)}

/* promise band */
.promise{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:clamp(2.5rem,6vh,4rem) 0;text-align:center}
.promise p{font:400 clamp(1.4rem,1.1rem + 1.4vw,2rem) var(--serif);line-height:1.45;max-width:52rem;margin:0 auto}

/* CTA block */
.cta-block{background:var(--ink);border-radius:16px;padding:clamp(2.5rem,5vw,4rem);display:flex;align-items:center;justify-content:space-between;gap:2.5rem;flex-wrap:wrap}
.cta-block h2{color:var(--ink-invert);font-size:clamp(1.7rem,1.4rem + 1.3vw,2.5rem)}
.cta-block p{color:var(--on-invert-muted);margin:.75rem 0 0;max-width:29rem}
@media (prefers-color-scheme:dark){.cta-block{border:1px solid var(--line)}}

/* service blocks (What we build) */
.svc-block{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:clamp(1.75rem,3vw,2.5rem);display:grid;grid-template-columns:1fr 1.1fr 1fr;gap:2.75rem}
.svc-block.dark{background:var(--ink);color:var(--ink-invert)}
.svc-block.dark .col-label{color:var(--on-invert-faint)}
.svc-tags{display:flex;align-items:baseline;gap:.75rem;margin-bottom:.75rem}
.svc-tags .ref{font:600 .74rem var(--sans);letter-spacing:.08em;color:var(--amber-deep)}
.svc-tags .pill{font:600 .64rem var(--sans);letter-spacing:.1em;color:var(--amber-deep);background:var(--amber-soft);border-radius:999px;padding:.25rem .65rem}
.svc-block.dark .pill{color:#16211F;background:var(--amber)}
.svc-block h2{font-size:1.85rem}
.col-label{font:600 .68rem var(--sans);letter-spacing:.13em;text-transform:uppercase;color:var(--ink-55);margin-bottom:.65rem}
.off-plate{display:flex;flex-direction:column;gap:.6rem;font-size:.9rem;color:var(--ink-72)}
.off-plate div{display:flex;gap:.65rem;align-items:baseline}
.tick{flex:none;width:14px;height:12px}

/* pipeline (How we work) */
.pipeline{display:grid;grid-template-columns:56px 1fr;column-gap:2.25rem}
.pipeline .rail{display:flex;flex-direction:column;align-items:center}
.pipeline .num{width:52px;height:52px;border:1.5px solid var(--amber);border-radius:50%;display:flex;align-items:center;justify-content:center;font:italic 400 1.35rem var(--serif);color:var(--amber-deep);background:var(--card);flex:none}
.pipeline .num.final{background:var(--amber);color:#16211F;border-color:var(--amber)}
.pipeline .rail-line{flex:1;width:1.5px;min-height:70px;background:var(--amber);opacity:.55;margin:.4rem 0}
.pipeline .body{padding-bottom:2.5rem}
.pipeline .body h2{font-size:1.9rem;margin:.2rem 0 .7rem}
.pipeline .body p{color:var(--ink-72);max-width:38rem;margin:0}
.aside{display:inline-flex;gap:.75rem;align-items:center;margin-top:1.1rem;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:.85rem 1.1rem;font-size:.85rem;color:var(--ink-65)}
.aside.accent{background:var(--amber-soft);border-color:rgba(200,137,30,.4);color:var(--amber-deep)}

/* belief columns + standards (Our approach) */
.beliefs{display:grid;grid-template-columns:repeat(3,1fr);gap:2.75rem;border-top:1px solid var(--line);padding-top:2.5rem}
.beliefs h3{font:italic 400 1.7rem var(--serif);color:var(--amber-deep)}
.beliefs p{margin:.65rem 0 0;color:var(--ink-72);font-size:.95rem}
.standards{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.std-row{display:grid;grid-template-columns:96px 1fr 1.3fr;gap:1rem;padding:1.6rem 1.75rem;align-items:baseline;border-bottom:1px solid var(--line-soft)}
.std-row:last-child{border-bottom:none}
.std-ref{font:600 .74rem var(--sans);letter-spacing:.08em;color:var(--amber-deep)}
.std-claim{font:600 1.15rem var(--serif);padding-right:1.5rem}
.std-desc{font-size:.9rem;color:var(--ink-65)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2.5rem,5vw,4.5rem);align-items:start}
.email-big{font:400 2rem var(--serif);border-bottom:2px solid var(--amber);padding-bottom:4px;display:inline-block}
.email-big:hover{color:var(--amber-deep)}
.next-steps{display:flex;flex-direction:column;gap:.75rem;font-size:.92rem;color:var(--ink-72)}
.next-steps div{display:flex;gap:.75rem;align-items:baseline}
.next-steps .n{font:italic 400 1.05rem var(--serif);color:var(--amber-deep);flex:none}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:clamp(1.75rem,3vw,2.5rem);box-shadow:0 18px 44px rgba(22,33,31,.07)}
.form-card label{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1.25rem}
.form-card label span{font:600 .85rem var(--sans)}
.form-card input,.form-card textarea{font:400 .95rem var(--sans);padding:.8rem 1rem;border:1px solid rgba(128,128,128,.35);border-radius:10px;background:var(--paper);color:var(--ink);outline:none;width:100%}
.form-card input:focus,.form-card textarea:focus{border-color:var(--amber)}
.form-note{font-size:.82rem;color:var(--ink-55);margin:.5rem 0 0}

/* prose (Terms) */
.prose{max-width:44rem}
.prose h2{font-size:1.5rem;margin:2.5rem 0 .75rem}
.prose p{color:var(--ink-72);margin:0 0 1rem}
.prose .placeholder{background:var(--amber-soft);border:1px dashed var(--amber);border-radius:6px;padding:.15rem .5rem;font-weight:600;color:var(--amber-deep)}

/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:2rem}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding-top:1.75rem;padding-bottom:1.75rem;font-size:.85rem;color:var(--ink-55);flex-wrap:wrap}
.footer-inner .fw{font:600 1rem var(--serif);color:var(--ink)}
.footer-links{display:flex;gap:1.4rem;flex-wrap:wrap}
.footer-links a:hover{color:var(--ink)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:2.5rem}
  .svc-block{grid-template-columns:1fr;gap:1.5rem}
  .contact-grid{grid-template-columns:1fr}
  .steps4{grid-template-columns:1fr;gap:1.5rem}
  .steps4 .arrow{display:none}
  .method-strip,.beliefs{grid-template-columns:1fr;gap:1.75rem}
}
@media (max-width:760px){
  .nav-links{
    position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;
    gap:0;background:var(--paper);border-bottom:1px solid var(--line);padding:.5rem var(--pad) 1.25rem;
    display:none;z-index:20
  }
  .site-header{position:relative}
  .nav-links.open{display:flex}
  .nav-links a{padding:.85rem 0;border-bottom:1px solid var(--line-soft)}
  .nav-links .nav-cta{text-align:center;margin-top:.75rem;border-bottom:none}
  .nav-toggle{display:block}
  .spec-row{grid-template-columns:64px 1fr;gap:.35rem .75rem}
  .spec-row .spec-desc,.spec-head .spec-desc{display:none}
  .spec-head{grid-template-columns:64px 1fr}
  .spec-run{text-align:left;grid-column:2}
  .std-row{grid-template-columns:1fr}
  .pipeline{grid-template-columns:44px 1fr;column-gap:1.25rem}
  .cta-block{flex-direction:column;align-items:flex-start;gap:1.5rem}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}