:root{
  --white:#FFFFFF;
  --ash-50:#F6F6F5;
  --ash-100:#EAE9E7;
  --ash-200:#DAD9D6;
  --ash-300:#A7A8AC;
  --ash-500:#818286;
  --ash-700:#57575A;
  --ash-900:#232324;
  --gold:#FCDC00;
  --gold-deep:#D8BC00;
  --font-display:'Jost','Century Gothic','Futura',sans-serif;
  --font-body:'IBM Plex Sans',sans-serif;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
html,body{ margin:0; padding:0; }
body{
  background:var(--white);
  color:var(--ash-900);
  font-family:var(--font-body);
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; }

.wrap{ max-width:1240px; margin:0 auto; padding-left:48px; padding-right:48px; }

@keyframes fadeUp{ from{opacity:0; transform:translateY(14px);} to{opacity:1; transform:translateY(0);} }
@media (prefers-reduced-motion: reduce){ .fade-in{ animation:none; } }

/* ---------- header ---------- */
header{
  display:flex; align-items:center; justify-content:space-between;
  padding:20px 48px; border-bottom:1px solid var(--ash-200);
  position:sticky; top:0; background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
  z-index:50;
}
.logo-mark{ display:inline-flex; text-decoration:none; }
.logo-mark img{ height:44px; width:auto; display:block; }
footer .logo-mark img{ height:32px; }

nav{ display:flex; align-items:center; }
nav a{ font-family:var(--font-display); font-size:13px; font-weight:600; letter-spacing:.03em; text-transform:uppercase; text-decoration:none; margin-left:30px; color:var(--ash-700); position:relative; padding-bottom:4px; }
nav a:not(.btn)::after{ content:""; position:absolute; left:0; right:0; bottom:0; height:2px; background:var(--gold); transform:scaleX(0); transform-origin:left; transition:transform .2s ease; }
nav a:not(.btn):hover{ color:var(--ash-900); }
nav a:not(.btn):hover::after{ transform:scaleX(1); }

.menu-toggle{ display:none; background:none; border:none; cursor:pointer; padding:6px; }
.menu-toggle span{ display:block; width:22px; height:2px; background:var(--ash-900); margin:5px 0; }

.btn{
  border:1.5px solid var(--ash-900); font-family:var(--font-display); font-size:13px; font-weight:600;
  letter-spacing:.03em; text-transform:uppercase; padding:12px 22px; cursor:pointer; text-decoration:none;
  display:inline-block; transition:background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-gold{ background:var(--gold); color:var(--ash-900); border-color:var(--gold); }
.btn-gold:hover{ background:var(--ash-900); color:var(--gold); border-color:var(--ash-900); }
.btn-dark{ background:var(--ash-900); color:var(--white); border-color:var(--ash-900); }
.btn-dark:hover{ background:var(--white); color:var(--ash-900); }
.btn-outline{ background:transparent; color:var(--ash-900); border-color:var(--ash-300); }
.btn-outline:hover{ border-color:var(--ash-900); }

/* ---------- hero ---------- */
.hero{ display:grid; grid-template-columns:1.25fr 1fr; gap:72px; align-items:start; padding-top:96px; padding-bottom:112px; }
.eyebrow{ font-family:var(--font-display); font-weight:600; font-size:11.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--ash-500); display:flex; align-items:center; gap:9px; margin-bottom:24px; }
.eyebrow::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--gold); flex:none; }

h1{ font-family:var(--font-display); font-weight:700; font-size:clamp(2.6rem,5vw,4.2rem); line-height:1.04; letter-spacing:-0.01em; margin:0 0 24px; }
h1 em{ font-style:normal; color:var(--gold-deep); background:linear-gradient(transparent 62%, var(--gold) 62%); padding:0 2px; }

.hero-sub{ font-size:17.5px; line-height:1.6; color:var(--ash-700); max-width:46ch; margin:0 0 38px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- hero diagram panel ---------- */
.panel{ border:1px solid var(--ash-200); background:var(--ash-50); }
.panel-head{ padding:16px 22px; border-bottom:1px solid var(--ash-200); display:flex; justify-content:space-between; align-items:center; }
.panel-head span:first-child{ font-family:var(--font-display); font-weight:600; font-size:11.5px; letter-spacing:.08em; text-transform:uppercase; color:var(--ash-500); }
.tag-pill{ font-family:var(--font-display); font-weight:700; font-size:11px; letter-spacing:.05em; background:var(--gold); color:var(--ash-900); padding:4px 9px; }
.ledger{ padding:6px 0; }
.ledger-row{ display:flex; align-items:baseline; gap:16px; padding:16px 22px; border-bottom:1px solid var(--ash-200); }
.ledger-num{ font-family:var(--font-display); font-weight:700; font-size:13px; color:var(--ash-300); width:18px; flex:none; }
.ledger-label{ font-family:var(--font-display); font-weight:600; font-size:15px; }
.ledger-desc{ font-size:12.5px; color:var(--ash-500); margin-top:3px; }
.panel-foot{ padding:16px 22px; background:rgba(252,220,0,.14); display:flex; justify-content:space-between; align-items:center; }
.panel-foot .k{ font-family:var(--font-display); font-weight:600; font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--ash-700); }
.panel-foot .v{ font-family:var(--font-display); font-weight:700; font-size:17px; color:var(--gold-deep); }

/* ---------- section shell ---------- */
section{ border-top:1px solid var(--ash-200); padding-top:92px; padding-bottom:92px; }
.section-head{ max-width:640px; margin-bottom:52px; }
.section-head h2{ font-family:var(--font-display); font-weight:700; font-size:clamp(1.8rem,3.2vw,2.4rem); margin:0 0 16px; line-height:1.12; }
.section-head p{ font-size:15.5px; line-height:1.65; color:var(--ash-700); margin:0; }

/* ---------- pillars ---------- */
.pillar{ display:flex; gap:26px; padding:34px 0; border-top:1px solid var(--ash-200); }
.pillar:first-of-type{ border-top:1px solid var(--ash-300); }
.pillar-num{ font-family:var(--font-display); font-weight:800; font-size:2.4rem; color:var(--ash-200); flex:none; width:60px; line-height:1; }
.pillar-body{ flex:1; min-width:0; }
.pillar-title{ font-family:var(--font-display); font-weight:700; font-size:1.25rem; margin:0 0 10px; }
.pillar-desc{ font-size:15px; line-height:1.7; color:var(--ash-700); max-width:60ch; margin:0 0 16px; }
.chips{ display:flex; gap:8px; flex-wrap:wrap; }
.chip{ font-family:var(--font-display); font-weight:600; font-size:10.5px; letter-spacing:.04em; text-transform:uppercase; padding:6px 10px; border:1px solid var(--ash-300); color:var(--ash-700); }

/* ---------- about ---------- */
.about{ display:grid; grid-template-columns:0.85fr 1.3fr; gap:60px; align-items:start; }
.about-photo{ position:relative; }
.about-photo .backdrop{ position:absolute; top:18px; left:18px; width:100%; height:100%; background:var(--ash-100); z-index:0; }
.about-photo img{ position:relative; z-index:1; filter:grayscale(100%) contrast(1.05); width:100%; }
.about-photo .dot-y{ position:absolute; z-index:2; top:-8px; right:-8px; width:16px; height:16px; border-radius:50%; background:var(--gold); }
.about-name{ font-family:var(--font-display); font-weight:700; font-size:1.5rem; margin:26px 0 2px; }
.about-role{ font-family:var(--font-display); font-weight:600; font-size:11.5px; letter-spacing:.06em; text-transform:uppercase; color:var(--ash-500); margin:0; }

.about-body p{ font-size:15.5px; line-height:1.75; color:var(--ash-700); margin:0 0 32px; max-width:64ch; }
.traits{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.trait-title{ font-family:var(--font-display); font-weight:700; font-size:13.5px; margin:0 0 8px; display:flex; align-items:center; gap:9px; }
.trait-desc{ font-size:13px; line-height:1.6; color:var(--ash-500); }

/* ---------- case study (dark contrast section) ---------- */
.case{ background:var(--ash-900); color:var(--white); }
.case .eyebrow{ color:rgba(255,255,255,.5); }
.case .eyebrow::before{ background:var(--gold); }
.case .section-head h2{ color:var(--white); }
.case-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; }
.case-label{ font-family:var(--font-display); font-weight:600; font-size:11.5px; letter-spacing:.08em; text-transform:uppercase; color:rgba(255,255,255,.55); margin-bottom:20px; }
.action-item{ display:flex; gap:16px; padding:20px 0; border-top:1px solid rgba(255,255,255,.15); }
.action-item:first-of-type{ border-top:1px solid rgba(255,255,255,.3); }
.action-num{ font-family:var(--font-display); font-weight:700; font-size:13px; color:rgba(255,255,255,.45); flex:none; width:20px; padding-top:2px; }
.action-title{ font-family:var(--font-display); font-weight:700; font-size:14.5px; margin:0 0 6px; }
.action-desc{ font-size:13.5px; line-height:1.6; color:rgba(255,255,255,.62); }

.stat{ padding:24px 0; border-top:1px solid rgba(255,255,255,.15); }
.stat:first-of-type{ border-top:1px solid rgba(255,255,255,.3); }
.stat-figure{ font-family:var(--font-display); font-weight:800; font-size:clamp(2.2rem,5vw,3.2rem); color:var(--gold); line-height:1; font-variant-numeric:tabular-nums; }
.stat-label{ font-family:var(--font-display); font-weight:600; font-size:11px; letter-spacing:.05em; text-transform:uppercase; color:rgba(255,255,255,.55); margin-top:10px; }

/* ---------- FAQ ---------- */
.faq-item{ border-top:1px solid var(--ash-200); }
.faq-item:last-child{ border-bottom:1px solid var(--ash-200); }
.faq-q{ width:100%; background:none; border:none; text-align:left; padding:22px 0; display:flex; align-items:center; gap:18px; cursor:pointer; font-family:inherit; color:inherit; }
.faq-q-num{ font-family:var(--font-display); font-weight:700; font-size:12.5px; color:var(--ash-300); flex:none; width:20px; }
.faq-q-text{ flex:1; font-family:var(--font-display); font-size:16px; font-weight:700; }
.faq-icon{ flex:none; width:16px; height:16px; position:relative; }
.faq-icon::before,.faq-icon::after{ content:""; position:absolute; background:var(--ash-300); }
.faq-icon::before{ left:0; top:7px; width:16px; height:2px; }
.faq-icon::after{ left:7px; top:0; width:2px; height:16px; transition:opacity .2s ease; }
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{ background:var(--gold-deep); }
.faq-item.open .faq-icon::after{ opacity:0; }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.faq-a p{ font-size:14.5px; line-height:1.65; color:var(--ash-700); margin:0 0 24px 38px; max-width:60ch; }

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns:0.8fr 1.2fr; gap:60px; }
.contact-info p{ font-size:15px; line-height:1.7; color:var(--ash-700); margin:0 0 22px; }
.contact-info a.direct{ font-family:var(--font-display); font-weight:600; font-size:14.5px; color:var(--ash-900); border-bottom:2px solid var(--gold); padding-bottom:2px; display:inline-block; }

.field{ margin-bottom:20px; }
.field label{ display:block; font-family:var(--font-display); font-size:11px; font-weight:600; letter-spacing:.05em; text-transform:uppercase; color:var(--ash-500); margin-bottom:8px; }
.field input,.field select,.field textarea{ width:100%; border:1px solid var(--ash-200); background:var(--white); padding:11px 12px; font-family:var(--font-body); font-size:15px; color:var(--ash-900); }
.field input:focus,.field select:focus,.field textarea:focus{ outline:none; border-color:var(--gold-deep); }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.form-actions{ display:flex; gap:14px; align-items:center; margin-top:8px; flex-wrap:wrap; }
.form-note{ font-size:13px; color:var(--ash-500); margin-top:16px; }

/* ---------- footer ---------- */
footer{ background:var(--white); color:var(--ash-900); padding:52px 48px 30px; border-top:1px solid var(--ash-200); }
.footer-top{ display:flex; justify-content:space-between; align-items:flex-start; flex-wrap:wrap; gap:28px; padding-bottom:28px; border-bottom:1px solid var(--ash-200); margin-bottom:22px; }
footer nav a{ margin-left:0; margin-right:26px; }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; font-size:12.5px; color:var(--ash-500); }

/* ---------- responsive ---------- */
@media (max-width:900px){
  header{ padding:16px 24px; }
  .logo-mark img{ height:34px; }
  .wrap{ padding-left:24px; padding-right:24px; }
  section{ padding-top:60px; padding-bottom:60px; }
  nav a:not(.btn){ display:none; }
  .menu-toggle{ display:block; }
  nav.open a:not(.btn){
    display:block; position:absolute; background:var(--white);
    left:0; right:0; top:100%; padding:14px 24px; border-bottom:1px solid var(--ash-200); margin:0;
  }
  .hero{ grid-template-columns:1fr; padding-top:48px; padding-bottom:56px; gap:36px; }
  .about{ grid-template-columns:1fr; }
  .about-photo{ max-width:280px; }
  .traits{ grid-template-columns:1fr; }
  .case-grid{ grid-template-columns:1fr; gap:36px; }
  .contact-grid{ grid-template-columns:1fr; gap:36px; }
  .field-row{ grid-template-columns:1fr; gap:0; }
  .footer-top{ flex-direction:column; }
  .pillar-num{ width:40px; font-size:1.8rem; }
}