/* arkona tech, private technology support
   Shared stylesheet for index.html and privacy.html (v4 redesign, Nov 2026) */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  /* fixed brand values */
  --ink:#1b1c3a; --ink-800:#2a2b5e; --ink-950:#131429; --indigo:#3b3c7a;
  --ivory:#f7f4ee; --ivory-dk:#efeae1; --paper:#fffdf9;
  --brass:#a3875a; --brass-text:#7d6440; --brass-lt:#c9b089;
  --serif:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --sans:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --max:1160px; --gutter:clamp(20px,5vw,56px);
  --section:clamp(88px,11vw,150px);

  /* themeable (light) */
  --ground:var(--ivory); --ground-alt:var(--ivory-dk); --surface:var(--paper);
  --fg:#23232b; --heading:var(--ink); --muted:#6f6c66;
  --rule:#ddd6ca; --num:var(--brass); --accent-text:var(--brass-text);
  --logo:var(--ink); --btn-bg:var(--ink); --btn-fg:var(--ivory); --btn-hover:var(--ink-800);
  --nav-bg:rgba(247,244,238,.92);
  /* ink bands */
  --band:var(--ink); --band-deep:var(--ink-950);
  --on-band:var(--ivory); --on-band-muted:rgba(247,244,238,.68); --band-rule:rgba(247,244,238,.16);
  --error-on-band:#f0a3ab;
}

:root{
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
  background:var(--ground);
}
html{scroll-behavior:smooth;scroll-padding-top:calc(env(safe-area-inset-top,0px) + 80px)}
body{font-family:var(--sans);font-size:16px;line-height:1.7;background:var(--ground);color:var(--fg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--nav-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
img,svg{display:block;max-width:100%}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* type */
.display,.h2,.h3{font-family:var(--serif);font-weight:500;color:var(--heading);letter-spacing:-.005em}
.display em,.h2 em{font-style:italic;font-weight:400}
.h2{font-size:clamp(34px,4.4vw,52px);line-height:1.1}
.h3{font-size:27px;line-height:1.2}
.lede{font-size:clamp(17px,1.6vw,19px);line-height:1.75;color:var(--muted);max-width:34em}
.label{font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-text)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--sans);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;padding:16px 28px;border:1px solid var(--btn-bg);background:var(--btn-bg);color:var(--btn-fg);cursor:pointer;transition:background .25s,color .25s,border-color .25s}
.btn:hover{background:var(--btn-hover);border-color:var(--btn-hover)}
.btn-sm{padding:11px 20px;font-size:12px}
.btn-light{background:var(--ivory);border-color:var(--ivory);color:var(--ink)}
.btn-light:hover{background:transparent;color:var(--ivory);border-color:var(--ivory)}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}

/* logo lockup */
.lockup{display:inline-flex;align-items:center;gap:14px;text-decoration:none;color:var(--logo)}
.lockup svg{height:28px;width:auto;fill:currentColor}
.lockup .lk-rule{width:1px;height:26px;background:var(--brass)}
.lockup .lk-word{font-family:var(--serif);font-weight:500;font-size:26px;line-height:1;letter-spacing:.005em;transform:translateY(-1px)}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--nav-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--rule)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.nav-links{display:flex;align-items:center;gap:36px;list-style:none}
.nav-links a:not(.btn){font-size:13.5px;font-weight:500;color:var(--muted);text-decoration:none;transition:color .2s}
.nav-links a:not(.btn):hover{color:var(--heading)}

/* hero */
.hero{padding:clamp(72px,10vw,140px) 0 clamp(64px,8vw,112px);border-bottom:1px solid var(--rule)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;column-gap:clamp(40px,6vw,96px);row-gap:clamp(32px,4vw,48px);align-items:end}
.hero .display{grid-column:1/-1;font-size:clamp(48px,8.4vw,112px);line-height:.98;margin-bottom:clamp(8px,2vw,24px)}
.hero .display .line{display:block}
.hero .lede{margin-bottom:40px;max-width:31em}
.line-direct{border-top:1px solid var(--brass);padding-top:22px}
.line-direct .label{display:block;margin-bottom:10px}
.phone{font-family:var(--serif);font-size:clamp(34px,3.4vw,42px);line-height:1.1;color:var(--heading);text-decoration:none;letter-spacing:.02em;white-space:nowrap;display:inline-block}
.phone:hover{color:var(--accent-text)}
.line-direct p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.6}

/* one orchestrated load moment */
@media (prefers-reduced-motion:no-preference){
  .hero .line,.hero .lede,.hero .actions,.line-direct{opacity:0;transform:translateY(14px);animation:rise .9s cubic-bezier(.2,.7,.2,1) forwards}
  .hero .line:nth-child(2){animation-delay:.12s}
  .hero .lede{animation-delay:.3s}
  .hero .actions{animation-delay:.4s}
  .line-direct{animation-delay:.6s}
  @keyframes rise{to{opacity:1;transform:none}}
}

/* section shared */
.section{padding:var(--section) 0}
.head{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,6vw,96px);align-items:end;margin-bottom:clamp(48px,6vw,80px)}

/* services: the memorable band */
.scope{background:var(--band);color:var(--on-band)}
.scope .h2{color:var(--on-band)}
.scope .lede{color:var(--on-band-muted)}
.scope-list{list-style:none;border-top:1px solid var(--band-rule)}
.scope-item{display:grid;grid-template-columns:72px minmax(0,1.5fr) minmax(0,1fr);gap:clamp(20px,3vw,48px);align-items:baseline;padding:clamp(28px,3.4vw,44px) 0;border-bottom:1px solid var(--band-rule)}
.scope-num{font-family:var(--serif);font-style:italic;font-size:22px;color:var(--brass-lt)}
.scope-title{font-family:var(--serif);font-weight:500;font-size:clamp(30px,3.6vw,46px);line-height:1.08;color:var(--on-band);letter-spacing:-.008em}
.scope-item p{color:var(--on-band-muted);font-size:15.5px;line-height:1.65;max-width:30em}

/* principles */
.principles-head{max-width:15em;margin-bottom:clamp(48px,6vw,80px)}
.principles-head.h2{font-size:clamp(36px,5vw,62px);line-height:1.08}
.principles{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--rule)}
.principle{padding:32px 28px 8px 0}
.principle+.principle{padding-left:28px;border-left:1px solid var(--rule)}
.principle .h3{margin-bottom:10px}
.principle p{color:var(--muted);font-size:15px;line-height:1.6}

/* approach: a real sequence, drawn as a line */
.approach{background:var(--ground-alt);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:0 clamp(20px,3vw,40px);position:relative}
.steps::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--brass)}
.step{position:relative;padding-top:34px}
.step::before{content:"";position:absolute;left:0;top:-4px;width:9px;height:9px;background:var(--brass)}
.step-num{display:block;font-family:var(--serif);font-style:italic;font-size:20px;color:var(--num);margin-bottom:14px}
.step .h3{font-size:25px;margin-bottom:10px}
.step p{color:var(--muted);font-size:15px;line-height:1.6;max-width:17em}

/* about */
.about{background:var(--surface)}
.about-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(40px,7vw,110px);align-items:end}
.about .h2{margin-bottom:32px;max-width:12em}
.about-copy p{color:var(--muted);max-width:32em}
.about-copy p+p{margin-top:16px}
.facts{list-style:none;border-top:1px solid var(--rule)}
.facts li{display:flex;justify-content:space-between;gap:24px;padding:20px 0;border-bottom:1px solid var(--rule);font-size:14.5px}
.facts span:first-child{color:var(--muted)}
.facts span:last-child{color:var(--heading);font-weight:500;text-align:right}

/* inquire */
.inquire{background:var(--band);color:var(--on-band)}
.inquire .h2{color:var(--on-band);margin-bottom:24px}
.inquire .lede{color:var(--on-band-muted);margin-bottom:40px}
.inquire-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:clamp(40px,7vw,110px)}
.direct{border-top:1px solid var(--band-rule);padding-top:24px;font-size:14.5px;color:var(--on-band-muted)}
.direct .phone{color:var(--on-band);font-size:30px;margin:6px 0 8px}
.direct .phone:hover{color:var(--brass-lt)}
.form{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1/-1}
.field label{font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:rgba(247,244,238,.72)}
.field label .opt{font-weight:400;letter-spacing:.04em;text-transform:none;color:rgba(247,244,238,.5)}
.field input,.field textarea{font-family:var(--sans);font-size:16px;color:var(--on-band);background:transparent;border:0;border-bottom:1px solid rgba(247,244,238,.3);padding:10px 0;border-radius:0;transition:border-color .2s;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:rgba(247,244,238,.36)}
.field input:focus,.field textarea:focus{outline:none;border-bottom-color:var(--brass-lt)}
.field input:focus-visible,.field textarea:focus-visible{outline:none}
.field-error{display:none;font-size:13px;color:var(--error-on-band)}
.field.invalid input,.field.invalid textarea{border-bottom-color:var(--error-on-band)}
.field.invalid .field-error{display:block}
.form-foot{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;margin-top:8px}
.form-note{font-size:13px;color:rgba(247,244,238,.58);max-width:340px;line-height:1.6}
.form-note a{color:rgba(247,244,238,.88)}
.form-error{grid-column:1/-1;font-size:14px;color:var(--error-on-band)}
.form-success{border-top:1px solid var(--band-rule);padding-top:32px}
.form-success .h3{color:var(--on-band);margin-bottom:12px}
.form-success p{color:var(--on-band-muted)}
.form-submit:disabled{opacity:.6;cursor:wait}
[hidden]{display:none!important}

/* footer */
.footer{background:var(--band-deep);color:rgba(247,244,238,.6);font-size:13.5px;padding:64px 0 40px}
.footer .lockup{color:var(--ivory);margin-bottom:18px}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid var(--band-rule)}
.footer-brand p{max-width:320px;line-height:1.65}
.footer-links{display:flex;gap:32px;list-style:none;flex-wrap:wrap}
.footer-links a{text-decoration:none;color:rgba(247,244,238,.78)}
.footer-links a:hover{color:var(--ivory)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;padding-top:28px;font-size:12.5px}
.footer-bottom nav{display:flex;gap:24px}
.footer-bottom a{color:rgba(247,244,238,.78)}

/* responsive */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr}
  .line-direct{max-width:360px}
  .head,.about-grid,.inquire-grid{grid-template-columns:1fr}
  .scope-item{grid-template-columns:48px 1fr;gap:10px 16px}
  .scope-item p{grid-column:2}
  .principles{grid-template-columns:1fr 1fr}
  .principle,.principle+.principle{padding:32px 24px 28px 0;border-left:0}
  .principle:nth-child(even){padding-left:24px;border-left:1px solid var(--rule)}
  .principle:nth-child(n+3){border-top:1px solid var(--rule)}
  .steps{grid-template-columns:1fr;gap:0;padding-left:28px}
  .steps::before{left:4px;right:auto;top:6px;bottom:6px;width:1px;height:auto}
  .step{padding:0 0 40px}
  .step:last-child{padding-bottom:0}
  .step::before{left:-28px;top:9px}
  .step-num{margin-bottom:6px}
  .step p{max-width:28em}
}
@media (max-width:760px){
  .nav-links li:not(:last-child){display:none}
}
@media (max-width:560px){
  .lockup svg{height:24px}
  .lockup .lk-word{font-size:23px}
  .lockup .lk-rule{height:22px}
  .actions .btn{width:100%}
  .principles{grid-template-columns:1fr}
  .principle:nth-child(even){padding-left:0;border-left:0}
  .principle+.principle{border-top:1px solid var(--rule)}
  .form{grid-template-columns:1fr}
  .facts li{flex-direction:column;gap:2px}
  .facts span:last-child{text-align:left}
}

/* legal page */
.legal{padding:clamp(64px,9vw,110px) 0 clamp(80px,10vw,130px)}
.legal-inner{max-width:720px}
.legal .back{display:inline-block;font-size:13px;color:var(--muted);text-decoration:none;margin-bottom:40px}
.legal .back:hover{color:var(--heading)}
.legal .h2{margin:0 0 20px}
.legal .updated{font-size:13.5px;color:var(--muted);padding-bottom:32px;margin-bottom:40px;border-bottom:1px solid var(--rule)}
.legal h2.h3{margin:44px 0 14px}
.legal p,.legal li{color:#45444a;margin-bottom:14px}
.legal ul{padding-left:22px;margin-bottom:14px}
.legal li{margin-bottom:6px}
.legal a{color:var(--indigo)}
.legal .lede{color:var(--muted);margin-bottom:20px}
.legal .callout{margin-top:56px;padding:32px;background:var(--surface);border:1px solid var(--rule)}
.legal .callout .h3{margin-top:0}
.legal .callout p:last-child{margin-bottom:0}