/* ============================================================
   Akritas Systems — The Ledger
   Documentary register + live status log. Warm paper-and-ink.
   Single restrained signal accent. No gradients. No cards.
   ============================================================ */

:root{
  --paper:#fbfaf7;
  --paper-2:#f4f1ea;
  --ink:#1b1a17;
  --ink-2:#4a483f;
  --muted:#6f6d64;
  --line:#e3dfd4;
  --line-strong:#d6d1c3;
  --signal:#b5762a;        /* single ember accent: log markers, one rule, CTA */
  --signal-soft:#e8d9bf;
  --ok:#3f7d5a;            /* healthy log marker */
  --header-h:64px;

  --font-display:"Bricolage Grotesque", system-ui, sans-serif;
  --font-body:"IBM Plex Sans", system-ui, sans-serif;
  --font-mono:"IBM Plex Mono", ui-monospace, monospace;

  --wrap:1120px;
  --wrap-narrow:760px;
  --r:2px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
}
body{
  font-family:var(--font-body);
  font-size:1.0625rem;
  line-height:1.65;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{display:block;max-width:100%}
button,input,textarea{font:inherit;color:inherit}
a{color:inherit}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3{font-family:var(--font-display);font-weight:700;line-height:1.05;letter-spacing:-0.01em}

/* subtle paper grain to avoid sterile SaaS white */
body{
  background-image:
    radial-gradient(circle at 1px 1px, rgba(27,26,23,0.018) 1px, transparent 0);
  background-size:22px 22px;
}

/* ---------- layout ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 clamp(20px, 5vw, 48px);
}
.mono{font-family:var(--font-mono);font-weight:400}
.kicker{
  font-size:0.78rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:1.1rem;
}

/* skip link */
.skip{
  position:absolute;left:-999px;top:0;z-index:200;
  background:var(--ink);color:var(--paper);
  padding:10px 16px;border-radius:0 0 var(--r) 0;
}
.skip:focus{left:0}

/* ---------- type scale ---------- */
.cover-title{
  font-size:clamp(2.5rem, 6.2vw, 4.75rem);
  font-weight:800;
  letter-spacing:-0.025em;
  line-height:1.0;
  margin:0 0 1.4rem;
}
.h-section{
  font-size:clamp(1.7rem, 3.6vw, 2.6rem);
  font-weight:700;
  margin:0 0 1rem;
}
.cover-lede,.depth-lede,.work-lede,.kept-lede,.bound-lede,.start-lede{
  font-size:clamp(1.05rem, 1.7vw, 1.28rem);
  line-height:1.6;
  color:var(--ink-2);
  max-width:62ch;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;
  font-family:var(--font-body);font-weight:600;font-size:0.95rem;
  padding:0.85em 1.5em;border-radius:var(--r);
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn-primary:hover{background:#000}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-block{width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter:saturate(1.1) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:var(--header-h);
  display:flex;align-items:center;gap:1.5rem;
}
.brand{display:inline-flex;align-items:center;gap:0.6rem;text-decoration:none;color:var(--ink)}
.brand-mark{color:var(--ink);display:inline-flex}
.brand-name{font-family:var(--font-display);font-weight:700;font-size:1.05rem;letter-spacing:-0.01em}
.brand-thin{font-weight:500;color:var(--ink-2)}

.primary-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:1.5rem}
.nav-link{
  font-size:0.9rem;font-weight:500;color:var(--ink-2);text-decoration:none;
  position:relative;padding:4px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--signal);transition:right .25s ease;
}
.nav-link:hover::after,.nav-link:focus-visible::after{right:0}
.header-cta{white-space:nowrap}

.nav-toggle{
  display:none;background:none;border:1px solid var(--line-strong);border-radius:var(--r);
  width:44px;height:40px;padding:0;cursor:pointer;position:relative;
  align-items:center;justify-content:center;
}
.nav-toggle-bar{
  display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;
  margin:2px auto;transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.mobile-nav{
  border-top:1px solid var(--line);
  background:var(--paper);
  padding:0.5rem clamp(20px,5vw,48px) 1.5rem;
}
.mnav-list{display:flex;flex-direction:column}
.mnav-link{
  display:block;padding:0.85rem 0;font-weight:500;font-size:1.02rem;
  text-decoration:none;border-bottom:1px solid var(--line);
}
.mnav-cta{padding-top:1.25rem}
.mnav-cta .btn{width:100%}

/* ---------- sections (shared rhythm) ---------- */
section{padding-block:clamp(56px, 8vw, 104px)}
.cover{padding-top:clamp(72px, 11vw, 132px)}

/* ---------- cover ---------- */
.cover-title .br-desktop{display:block}
.cover-actions{display:flex;flex-wrap:wrap;gap:0.9rem;margin-top:2.2rem}
.cover--register{padding-top:0}
.cover-strip{
  margin-top:2.4rem;display:flex;align-items:center;flex-wrap:wrap;gap:0.55rem;
  font-family:var(--font-mono);font-size:0.8rem;letter-spacing:0.04em;
  color:var(--ink-2);
  border-top:1px solid var(--line-strong);padding-top:1.1rem;max-width:640px;
}
.strip-dot{
  width:8px;height:8px;border-radius:50%;background:var(--ok);flex:none;
  animation:strip-pulse 2.6s ease-in-out infinite;
}
@keyframes strip-pulse{0%,100%{opacity:1}50%{opacity:0.35}}
.strip-item{color:var(--ink)}
.strip-sep{color:var(--line-strong)}
.strip-note{margin-left:auto;color:var(--muted);letter-spacing:0.02em}
.reg-intro{max-width:56ch;margin-bottom:2.6rem;color:var(--ink-2)}

/* ---------- register ---------- */
.register{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:0;border-top:1px solid var(--line-strong);
}
.reg-group{padding:1.8rem 1.8rem 1.8rem 0;border-right:1px solid var(--line);position:relative}
.reg-group:last-child{border-right:none;padding-right:0}
.reg-group:first-child{padding-left:0}
.reg-title{
  font-family:var(--font-display);font-size:1.15rem;font-weight:700;margin-bottom:0.35rem;
  display:flex;align-items:center;gap:0.5rem;
}
.reg-title::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--signal);flex:none;
}
.reg-note{font-size:0.9rem;color:var(--muted);margin-bottom:1.1rem}
.reg-items li{
  padding:0.5rem 0;border-bottom:1px solid var(--line);
  font-size:0.98rem;
}
.reg-items li:last-child{border-bottom:none}

/* ---------- depth (continuum in words) ---------- */
.depth{background:var(--paper-2);border-block:1px solid var(--line)}
.depth-lede{margin-bottom:2.8rem}
.depth-stages{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid var(--line-strong);
}
.stage{padding:1.9rem 1.9rem 0 0;border-right:1px solid var(--line);position:relative}
.stage:last-child{border-right:none}
.stage:first-child{padding-left:0}
.stage-no{font-size:0.8rem;color:var(--signal);letter-spacing:0.1em;margin-bottom:0.7rem}
.stage-title{font-size:1.4rem;margin-bottom:0.3rem}
.stage-lead{font-size:0.95rem;color:var(--muted);margin-bottom:1rem}
.stage-quote{
  font-family:var(--font-display);font-style:italic;font-weight:500;
  font-size:1.05rem;line-height:1.3;color:var(--ink);
  border-left:2px solid var(--signal);padding-left:0.8rem;margin-bottom:1rem;
}
.stage-body{font-size:0.95rem;color:var(--ink-2);line-height:1.55}

.depth-foundation{margin-top:2.6rem;padding:1.4rem 0 0}
.foundation-bar{
  height:10px;background:var(--ink);border-radius:3px;margin-bottom:0.8rem;
  position:relative;overflow:hidden;
}
.foundation-bar::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg, transparent, rgba(251,250,247,0.25), transparent);
  transform:translateX(-100%);
}
.foundation-note{font-size:0.9rem;color:var(--muted);letter-spacing:0.02em}

/* ---------- how we work ---------- */
.work-lede{margin-bottom:2.6rem}
.work-steps{border-top:1px solid var(--line-strong)}
.work-step{
  display:grid;grid-template-columns:88px 1fr;gap:1.4rem;
  padding:1.9rem 0;border-bottom:1px solid var(--line);align-items:start;
}
.step-no{font-size:1.3rem;color:var(--signal);letter-spacing:0.05em;padding-top:0.15rem}
.step-title{font-size:1.35rem;margin-bottom:0.5rem}
.step-body p{color:var(--ink-2);max-width:60ch}

/* ---------- kept (the log) ---------- */
.kept{background:var(--ink);color:var(--paper);border-block:1px solid #000}
.kept .kicker{color:#a8a294}
.kept .h-section{color:var(--paper)}
.kept-lede{color:#c9c4b6;max-width:52ch}
.kept-head{
  display:grid;grid-template-columns:1.05fr 0.95fr;gap:clamp(2rem,5vw,4rem);
  align-items:center;
}
.log{
  background:#121110;border:1px solid #2c2a25;border-radius:var(--r);
  padding:1.1rem 1.2rem 1.3rem;position:relative;
  box-shadow:0 1px 0 rgba(251,250,247,0.04) inset;
}
.log-cap{
  font-size:0.72rem;letter-spacing:0.14em;text-transform:uppercase;
  color:#8a8477;border-bottom:1px solid #2c2a25;padding-bottom:0.7rem;margin-bottom:0.8rem;
}
.log-body{display:flex;flex-direction:column;gap:0.5rem;font-size:0.86rem}
.log-line{
  display:flex;align-items:center;gap:0.6rem;color:#d8d3c5;
  opacity:0;transform:translateY(4px);
  transition:opacity .5s ease, transform .5s ease;
}
.log-line::before{content:"›";color:var(--signal);flex:none}
.log-line.log-ok{color:var(--ok);font-weight:500}
.log-line.log-ok::before{content:"●";font-size:0.7em;vertical-align:middle}
.log.in .log-line{opacity:1;transform:none}
.log.in .log-line:nth-child(1){transition-delay:.1s}
.log.in .log-line:nth-child(2){transition-delay:.3s}
.log.in .log-line:nth-child(3){transition-delay:.5s}
.log.in .log-line:nth-child(4){transition-delay:.7s}
.log.in .log-line:nth-child(5){transition-delay:.95s}
.log-dot{
  position:absolute;top:1rem;right:1rem;width:9px;height:9px;border-radius:50%;
  background:var(--ok);
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0.25}}
.log.in .log-dot{animation:blink 2.4s ease-in-out infinite}
.kept-self{
  margin-top:2.6rem;max-width:70ch;color:#c9c4b6;font-size:1.02rem;
  border-left:2px solid var(--signal);padding-left:1.1rem;
}

/* ---------- boundaries ---------- */
.bound-head{max-width:64ch;margin-bottom:2.6rem}
.bound-cols{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border-top:1px solid var(--line-strong);
}
.bound-col{padding:1.9rem 2rem 0 0;border-right:1px solid var(--line)}
.bound-col:last-child{border-right:none;padding-right:0;padding-left:2rem}
.bound-col-title{font-size:0.82rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--muted);margin-bottom:1.1rem}
.bound-list li{
  padding:0.65rem 0;border-bottom:1px solid var(--line);font-size:0.98rem;
  position:relative;padding-left:1.3rem;
}
.bound-list li:last-child{border-bottom:none}
.bound-list li::before{
  content:"—";position:absolute;left:0;color:var(--signal);
}
.bound-close{
  margin-top:2.4rem;max-width:66ch;font-size:1.08rem;color:var(--ink);
  border-top:1px solid var(--line-strong);padding-top:1.6rem;
}

/* ---------- start / contact ---------- */
.start{background:var(--paper-2);border-top:1px solid var(--line)}
.start-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.start-list{margin:1.8rem 0 1.6rem}
.start-list li{
  font-family:var(--font-display);font-style:italic;font-weight:500;font-size:1.05rem;
  padding:0.5rem 0;border-bottom:1px solid var(--line);
}
.start-cta-note{font-size:0.82rem;color:var(--muted);letter-spacing:0.03em;line-height:1.5}
.start-form{
  background:var(--paper);border:1px solid var(--line-strong);border-radius:var(--r);
  padding:1.6rem;
}
.field{margin-bottom:1.1rem}
.field label{display:block;font-size:0.85rem;font-weight:600;margin-bottom:0.4rem;color:var(--ink-2)}
.field input,.field textarea{
  width:100%;padding:0.7rem 0.8rem;border:1px solid var(--line-strong);border-radius:var(--r);
  background:#fff;font-size:0.98rem;
}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px var(--signal-soft);
}
.field textarea{resize:vertical}
.form-status{margin-top:0.9rem;font-size:0.86rem;color:var(--ok);min-height:1.2em}
.form-status.is-err{color:#a23b2e}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding-block:2.6rem}
.footer-inner{
  display:grid;grid-template-columns:auto 1fr auto;gap:2rem;align-items:center;
}
.footer-brand{display:flex;flex-direction:column;gap:0.5rem}
.footer-mark{color:var(--paper)}
.footer-name{font-family:var(--font-display);font-weight:700}
.footer-line{font-size:0.88rem;color:#a8a294}
.footer-nav ul{display:flex;flex-wrap:wrap;gap:1.1rem;justify-content:center}
.footer-nav a{font-size:0.88rem;color:#c9c4b6;text-decoration:none}
.footer-nav a:hover{color:var(--paper)}
.footer-meta{font-size:0.78rem;color:#8a8477;text-align:right}

/* ---------- reveal (scroll-in) ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- focus ---------- */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--signal);outline-offset:3px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:900px){
  .primary-nav,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .register{grid-template-columns:1fr;border-top:none}
  .reg-group{border-right:none;border-bottom:1px solid var(--line);padding:1.5rem 0}
  .reg-group:last-child{border-bottom:none}
  .depth-stages{grid-template-columns:1fr;border-top:none}
  .stage{border-right:none;border-bottom:1px solid var(--line);padding:1.6rem 0}
  .stage:last-child{border-bottom:none}
  .kept-head{grid-template-columns:1fr}
  .bound-cols{grid-template-columns:1fr}
  .bound-col{border-right:none;border-bottom:1px solid var(--line);padding:1.6rem 0}
  .bound-col:last-child{border-bottom:none;padding-left:0}
  .start-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;text-align:center;gap:1.4rem}
  .footer-nav ul{justify-content:center}
  .footer-meta{text-align:center}
}
@media (max-width:560px){
  .work-step{grid-template-columns:1fr;gap:0.4rem}
  .step-no{padding-top:0}
  .cover-actions .btn{width:100%}
  .cover-strip{flex-wrap:wrap;gap:0.5rem 0.7rem}
  .strip-note{margin-left:0;width:100%}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal,.log-line{opacity:1 !important;transform:none !important;transition:none !important}
  .log.in .log-line{transition:none !important}
  .log.in .log-dot{animation:none !important}
  .strip-dot{animation:none !important}
  .foundation-bar::after{display:none}
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important}
}