/* ===== Tokens ===== */
:root{
  --paper: #EDF0EA;
  --paper-deep: #E1E6DB;
  --white: #FBFAF6;
  --ink: #12203A;
  --ink-soft: #2C3E58;
  --slate: #57626C;
  --line: #C7CFC1;
  --signal: #B8863B;
  --signal-deep: #8C6526;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Source Serif 4', serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --maxw: 1120px;
  --edge: clamp(24px, 5vw, 72px);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3{
  font-family:var(--font-display);
  color:var(--ink);
  margin:0;
  letter-spacing:-0.01em;
}

a{color:inherit; text-decoration:none;}

.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--signal-deep);
  margin:0 0 14px;
}

/* ===== Margin ruler (signature element) ===== */
.ruler{
  position:fixed;
  left:28px;
  top:50%;
  transform:translateY(-50%);
  z-index:40;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:0;
}
.ruler-line{
  position:absolute;
  left:5px;
  top:0;
  bottom:0;
  width:1px;
  background:var(--line);
}
.tick{
  position:relative;
  background:none;
  border:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 0;
  font-family:var(--font-mono);
}
.tick::before{
  content:"";
  width:9px;
  height:1px;
  background:var(--slate);
  flex-shrink:0;
}
.tick-num{
  font-size:11px;
  color:var(--slate);
  transition:color .2s;
}
.tick-label{
  font-size:11px;
  letter-spacing:0.04em;
  color:transparent;
  max-width:0;
  overflow:hidden;
  white-space:nowrap;
  transition:max-width .25s ease, color .25s ease;
}
.tick:hover .tick-label,
.tick.active .tick-label{
  max-width:120px;
  color:var(--ink-soft);
}
.tick.active .tick-num{ color:var(--signal-deep); font-weight:600; }
.tick.active::before{ background:var(--signal); width:16px; }

@media (max-width: 980px){ .ruler{display:none;} }

/* ===== Nav ===== */
.nav{
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  padding:20px var(--edge);
  background:rgba(237,240,234,0.88);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.15;
  gap:2px;
}
.brand-name{
  font-family:var(--font-body);
  font-weight:600;
  font-size:21px;
  letter-spacing:0.005em;
  color:var(--ink);
}
.brand-tagline{
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--slate);
}
.nav-links{ display:flex; align-items:center; gap:32px; font-family:var(--font-mono); font-size:13px; letter-spacing:0.03em;}
.nav-links a{ color:var(--ink-soft); position:relative; padding:4px 0;}
.nav-links a:hover{ color:var(--ink); }
.nav-cta{
  background:var(--ink); color:var(--paper) !important;
  padding:9px 16px !important; border-radius:2px;
}
.nav-cta:hover{ background:var(--signal-deep); }
.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:6px;}
.nav-toggle span{ width:22px; height:2px; background:var(--ink); display:block; }

@media (max-width: 760px){
  .nav-links{
    position:fixed; inset:64px 0 auto 0; flex-direction:column; align-items:flex-start;
    background:var(--paper); padding:24px var(--edge) 32px; border-bottom:1px solid var(--line);
    gap:18px; transform:translateY(-8px); opacity:0; pointer-events:none; transition:all .2s ease;
  }
  .nav-links.open{ transform:translateY(0); opacity:1; pointer-events:auto; }
  .nav-toggle{ display:flex; }
  .nav-cta{ margin-top:6px; }
}

/* ===== Hero ===== */
.hero{
  padding:88px var(--edge) 80px;
  max-width:var(--maxw); margin:0 auto;
}
.hero-inner{ max-width:640px; }
.hero h1{
  font-size:clamp(32px, 4.2vw, 46px);
  font-weight:500;
  line-height:1.15;
  margin-bottom:22px;
}
.hero-sub{ font-size:17px; color:var(--ink-soft); max-width:520px; margin-bottom:16px; }
.hero-avail{
  font-family:var(--font-mono); font-size:13px; letter-spacing:0.01em;
  color:var(--signal-deep); margin:0 0 26px;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:16px; }
.hero-cv{
  display:inline-block; font-family:var(--font-mono); font-size:13px;
  color:var(--ink-soft); border-bottom:1px solid var(--line); padding-bottom:2px;
}
.hero-cv:hover{ color:var(--ink); border-color:var(--slate); }

.btn{
  font-family:var(--font-mono); font-size:13px; letter-spacing:0.02em;
  padding:13px 20px; border-radius:2px; display:inline-block; transition:all .2s ease;
}
.btn-primary{ background:var(--ink); color:var(--paper); }
.btn-primary:hover{ background:var(--ink-soft); }
.btn-ghost{ border:1px solid var(--line); color:var(--ink-soft); }
.btn-ghost:hover{ border-color:var(--slate); color:var(--ink); }

/* ===== Sections ===== */
.section{
  max-width:var(--maxw); margin:0 auto;
  padding:88px var(--edge);
  border-top:1px solid var(--line);
}
.section h2{ font-size:clamp(24px, 2.6vw, 30px); font-weight:500; margin-bottom:40px; max-width:620px; }
.section-intro{ font-size:16px; color:var(--ink-soft); max-width:640px; margin:-24px 0 40px; }

/* Cards (services) */
.card-grid{ display:grid; grid-template-columns:repeat(2, 1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.card{ background:var(--paper); padding:32px 30px; border-top:2px solid var(--signal); }
.card-full{ grid-column:1 / -1; }
.card h3{ font-size:17px; font-weight:500; margin-bottom:10px; }
.card p{ color:var(--ink-soft); font-size:15px; margin:0; }
.card-full p{ max-width:760px; }
@media (max-width: 700px){ .card-grid{ grid-template-columns:1fr; } }

/* Approach steps */


/* Ledger (track record) */
.ledger{ display:flex; flex-direction:column; }
.ledger-row{ border-top:1px solid var(--line); padding:22px 0; }
.ledger-row:last-child{ border-bottom:1px solid var(--line); }
.ledger-row summary{
  cursor:pointer; list-style:none; display:grid;
  grid-template-columns:130px 1fr; gap:6px 24px; align-items:baseline;
}
.ledger-row summary::-webkit-details-marker{ display:none; }
.ledger-date{ font-family:var(--font-mono); font-size:13px; color:var(--signal-deep); }
.ledger-role{ font-family:var(--font-display); font-size:18px; font-weight:500; grid-column:2; }
.ledger-org{ grid-column:2; color:var(--slate); font-size:14px; font-family:var(--font-mono); }
.ledger-row ul{ margin:18px 0 0 154px; padding:0; list-style:none; display:flex; flex-direction:column; gap:10px; max-width:640px; }
.ledger-row li{ position:relative; padding-left:16px; color:var(--ink-soft); font-size:15.5px; }
.ledger-row li::before{ content:"—"; position:absolute; left:0; color:var(--signal); }
@media (max-width: 640px){
  .ledger-row summary{ grid-template-columns:1fr; }
  .ledger-role, .ledger-org{ grid-column:1; }
  .ledger-row ul{ margin-left:0; }
}

.reference-quote{
  margin:44px 0 0; padding:28px 0 0; border-top:1px solid var(--line);
}
.reference-quote p{
  font-family:var(--font-body); font-style:italic; font-size:17px;
  line-height:1.65; color:var(--ink-soft); max-width:680px; margin:0 0 14px;
}
.reference-quote cite{
  display:block; font-style:normal; font-family:var(--font-mono);
  font-size:12.5px; letter-spacing:0.04em; color:var(--signal-deep);
}
.reference-link{
  display:inline-block; margin-top:14px; font-family:var(--font-mono);
  font-size:12.5px; color:var(--ink-soft); border-bottom:1px solid var(--line); padding-bottom:2px;
}
.reference-link:hover{ color:var(--ink); border-color:var(--slate); }

/* Credentials */
.cred-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:40px; }
.cred-col h3{ font-size:14px; font-family:var(--font-mono); letter-spacing:0.06em; text-transform:uppercase; color:var(--slate); margin-bottom:18px; font-weight:600;}
.cred-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:14px; }
.cred-list li{ display:flex; justify-content:space-between; gap:12px; border-bottom:1px dotted var(--line); padding-bottom:10px; font-size:14.5px; }
.cred-list time{ font-family:var(--font-mono); font-size:12px; color:var(--signal-deep); white-space:nowrap; }
@media (max-width: 700px){ .cred-grid{ grid-template-columns:1fr; gap:32px; } }

/* Contact */
.contact{ background:var(--ink); color:var(--paper); border-top:none; }
.contact .eyebrow{ color:var(--signal); }
.contact h2{ color:var(--white); }
.contact-sub{ color:#B7C0CC; max-width:480px; margin-bottom:44px; font-size:17px; }
.contact-card{ display:flex; flex-direction:column; max-width:620px; }
.contact-line{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:8px;
  padding:20px 0; border-top:1px solid rgba(255,255,255,0.14);
}
.contact-card a.contact-line:hover .contact-value{ color:var(--signal); }
.contact-card > *:last-child{ border-bottom:1px solid rgba(255,255,255,0.14); }
.contact-label{ font-family:var(--font-mono); font-size:12px; letter-spacing:0.1em; text-transform:uppercase; color:#8792A0; }
.contact-value{ font-family:var(--font-display); font-size:17px; color:var(--paper); transition:color .2s; }

/* Contact form */
.contact-form{ max-width:480px; margin-bottom:12px; }
.form-row{ margin-bottom:20px; display:flex; flex-direction:column; gap:8px; }
.form-row label{
  font-family:var(--font-mono); font-size:12px; letter-spacing:0.1em;
  text-transform:uppercase; color:#8792A0;
}
.form-row input, .form-row textarea{
  font-family:var(--font-body); font-size:16px; color:var(--paper);
  background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.22);
  border-radius:2px; padding:11px 14px; resize:vertical;
}
.form-row input:focus, .form-row textarea:focus{
  outline:none; border-color:var(--signal); background:rgba(255,255,255,0.09);
}
.form-row input::placeholder, .form-row textarea::placeholder{ color:#6B7684; }
/* Honeypot: hidden from sighted and screen-reader users, still present for bots to fill in */
.hp-field{ position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden; }
.form-status{ font-family:var(--font-mono); font-size:13.5px; min-height:1.4em; margin:14px 0 0; }
.form-status-ok{ color:#8FD19E; }
.form-status-error{ color:#E39A9A; }

.contact-card-secondary{ margin-top:8px; }

/* Footer */
.footer{
  padding:28px var(--edge) 40px; background:var(--ink); color:#8792A0;
  font-family:var(--font-mono); font-size:12px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;
}

/* Reveal on scroll */
.reveal{ opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }