/* =========================================================
   ACUMEN LEDGER — design tokens
   Palette: void black + violet, structured around a
   reconciling-ledger signature (debits/credits meeting balance).
   ========================================================= */
:root{
  --void:        #0A0710;
  --ink:         #130D1E;
  --ink-2:       #1C1430;
  --ink-3:       #251A3E;
  --violet-deep: #4C1D95;
  --violet:      #7C3AED;
  --violet-hi:   #A78BFA;
  --orchid:      #D8B4FE;
  --paper:       #F5F3FF;
  --muted:       #A79FC0;
  --muted-2:     #786F91;
  --line:        rgba(216,180,254,0.14);
  --line-strong: rgba(216,180,254,0.28);
  --good:        #34D399;

  --serif: 'Fraunces', ui-serif, Georgia, serif;
  --sans:  'IBM Plex Sans', -apple-system, Segoe UI, Roboto, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --wrap: 1180px;
  --radius: 14px;
  --ease: cubic-bezier(.16,.84,.44,1);
}

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

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--void);
  color:var(--paper);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(60vw 40vw at 88% -5%, rgba(124,58,237,.22), transparent 60%),
    radial-gradient(50vw 35vw at 5% 15%, rgba(76,29,149,.24), transparent 60%);
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; }

h1,h2,h3,h4{ font-family:var(--serif); font-weight:600; line-height:1.08; margin:0; letter-spacing:-0.01em; }
h1{ font-size:clamp(2.6rem, 5.6vw, 4.6rem); font-weight:600; }
h2{ font-size:clamp(2rem, 3.6vw, 3rem); }
h3{ font-size:clamp(1.3rem, 2vw, 1.6rem); }
p{ margin:0; }

.wrap{ max-width:var(--wrap); margin:0 auto; padding:0 28px; position:relative; z-index:1; }
section{ position:relative; z-index:1; }

.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--mono); font-size:0.78rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--orchid);
}
.eyebrow::before{ content:""; width:18px; height:1px; background:var(--orchid); opacity:.7; }

.lede{ color:var(--muted); font-size:1.08rem; max-width:56ch; }

:focus-visible{ outline:2px solid var(--orchid); outline-offset:3px; border-radius:4px; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 26px; border-radius:999px;
  font-family:var(--sans); font-weight:600; font-size:.95rem;
  border:1px solid transparent; cursor:pointer;
  transition:transform .25s var(--ease), background .25s, border-color .25s, color .25s;
}
.btn-primary{ background:var(--paper); color:var(--void); }
.btn-primary:hover{ transform:translateY(-2px); background:var(--orchid); }
.btn-ghost{ border-color:var(--line-strong); color:var(--paper); }
.btn-ghost:hover{ transform:translateY(-2px); border-color:var(--orchid); background:rgba(216,180,254,.06); }
.btn-block{ width:100%; justify-content:center; }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(10,7,16,.72); backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{ display:flex; align-items:center; justify-content:space-between; height:82px; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--serif); font-size:1.3rem; font-weight:600; color:var(--paper); }
.brand-mark{ width:10px; height:10px; border-radius:2px; background:var(--violet); box-shadow:0 0 16px 2px rgba(124,58,237,.7); flex:none; }
.brand-sub{ font-family:var(--mono); font-size:.65rem; letter-spacing:.14em; color:var(--muted-2); text-transform:uppercase; margin-left:2px; }

.primary-nav{ display:flex; align-items:center; gap:2px; }
.primary-nav ul{ display:flex; align-items:center; gap:4px; }
.primary-nav a{
  display:block; padding:10px 16px; border-radius:999px;
  font-size:.92rem; color:var(--muted); transition:color .2s, background .2s;
  position:relative;
}
.primary-nav a:hover, .primary-nav .current-menu-item > a, .primary-nav a.is-active{ color:var(--paper); background:rgba(216,180,254,.07); }
.primary-nav li.has-children{ position:relative; }
.primary-nav .sub-menu{
  position:absolute; top:calc(100% + 10px); left:0; min-width:220px;
  background:var(--ink-2); border:1px solid var(--line); border-radius:12px; padding:8px;
  opacity:0; visibility:hidden; transform:translateY(6px);
  transition:opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  box-shadow:0 20px 40px rgba(0,0,0,.45);
}
.primary-nav li.has-children:hover .sub-menu,
.primary-nav li.has-children:focus-within .sub-menu{ opacity:1; visibility:visible; transform:translateY(0); }
.primary-nav .sub-menu a{ font-size:.88rem; padding:9px 12px; border-radius:8px; }
.primary-nav .sub-menu a::before{ content:"— "; color:var(--muted-2); }

.header-cta{ display:flex; align-items:center; gap:18px; }
.nav-toggle{ display:none; background:none; border:1px solid var(--line-strong); color:var(--paper); width:44px; height:44px; border-radius:10px; align-items:center; justify-content:center; }

@media (max-width: 900px){
  .primary-nav{ display:none; }
  .nav-toggle{ display:flex; }
  .header-cta .btn-primary{ padding:10px 18px; font-size:.85rem; }
  body.nav-open .mobile-nav{ display:block; }
}
.mobile-nav{ display:none; border-top:1px solid var(--line); background:var(--void); }
.mobile-nav .wrap{ height:auto; flex-direction:column; align-items:stretch; padding:12px 28px 26px; }
.mobile-nav a{ display:block; padding:12px 0; border-bottom:1px solid var(--line); color:var(--muted); }
.mobile-nav .sub-menu a{ padding-left:16px; font-size:.9rem; }

/* ---------- hero / ledger signature ---------- */
.hero{ padding:76px 0 40px; }
.hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:64px; align-items:center; }
.hero-copy h1{ margin-top:18px; }
.hero-copy .lede{ margin-top:22px; font-size:1.15rem; }
.hero-actions{ display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }
.hero-proof{ margin-top:44px; display:flex; gap:34px; flex-wrap:wrap; }
.hero-proof div{ display:flex; flex-direction:column; }
.hero-proof strong{ font-family:var(--serif); font-size:1.7rem; color:var(--paper); }
.hero-proof span{ font-family:var(--mono); font-size:.72rem; letter-spacing:.08em; color:var(--muted-2); text-transform:uppercase; margin-top:4px; }

/* the ledger card: signature interactive element */
.ledger-card{
  background:linear-gradient(180deg, var(--ink), var(--ink-2));
  border:1px solid var(--line-strong); border-radius:var(--radius);
  padding:26px 26px 22px; box-shadow:0 40px 90px -30px rgba(76,29,149,.55);
}
.ledger-card__head{ display:flex; justify-content:space-between; align-items:baseline; margin-bottom:16px; }
.ledger-card__head span{ font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; color:var(--muted-2); text-transform:uppercase; }
.ledger-cols{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.ledger-col h4{ font-family:var(--mono); font-size:.68rem; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); margin-bottom:10px; font-weight:500; }
.ledger-col.debit h4{ color:var(--orchid); }
.ledger-row{
  display:flex; justify-content:space-between; padding:9px 0;
  border-bottom:1px dashed var(--line); font-family:var(--mono); font-size:.85rem;
  opacity:0; transform:translateY(6px);
}
.ledger-row.is-in{ opacity:1; transform:translateY(0); transition:opacity .5s var(--ease), transform .5s var(--ease); }
.ledger-row .amt{ color:var(--muted); }
.ledger-balance{
  margin-top:18px; padding-top:16px; border-top:1px solid var(--line-strong);
  display:flex; align-items:center; justify-content:space-between;
}
.ledger-balance .label{ font-family:var(--mono); font-size:.75rem; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); }
.ledger-balance .status{ display:flex; align-items:center; gap:8px; font-family:var(--mono); font-size:.9rem; color:var(--good); opacity:0; transition:opacity .5s var(--ease); }
.ledger-balance .status.is-in{ opacity:1; }
.ledger-balance .status svg{ width:16px; height:16px; }
.ledger-balance .status svg path{ stroke-dasharray:20; stroke-dashoffset:20; transition:stroke-dashoffset .5s var(--ease) .15s; }
.ledger-balance .status.is-in svg path{ stroke-dashoffset:0; }

/* ---------- divider / signature rule ---------- */
.ledger-rule{ display:flex; align-items:center; gap:14px; margin: 8px 0 0; }
.ledger-rule::before{ content:""; flex:1; height:1px; background:var(--line-strong); }
.ledger-rule::after{ content:"✓"; font-family:var(--mono); font-size:.75rem; color:var(--good); border:1px solid var(--line-strong); border-radius:999px; width:22px; height:22px; display:flex; align-items:center; justify-content:center; flex:none; }

/* ---------- section shells ---------- */
.section{ padding:100px 0; }
.section-alt{ background:var(--ink); }
.section-head{ max-width:640px; margin-bottom:52px; }
.section-head h2{ margin-top:16px; }
.section-head .lede{ margin-top:16px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head.center .eyebrow::before{ display:none; }
.section-head.split{ display:flex; justify-content:space-between; align-items:flex-end; max-width:none; gap:40px; flex-wrap:wrap; }

/* ---------- services grid (home + services page) ---------- */
.svc-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
.svc-card{ background:var(--void); padding:36px; display:flex; flex-direction:column; gap:16px; transition:background .25s; }
.svc-card:hover{ background:var(--ink); }
.svc-card__top{ display:flex; justify-content:space-between; align-items:flex-start; }
.svc-ref{ font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; color:var(--muted-2); }
.svc-icon{ width:38px; height:38px; color:var(--orchid); }
.svc-card h3{ color:var(--paper); }
.svc-card p{ color:var(--muted); font-size:.95rem; }
.svc-card .svc-link{ margin-top:auto; font-family:var(--mono); font-size:.82rem; color:var(--violet-hi); display:inline-flex; align-items:center; gap:8px; }
.svc-card .svc-link svg{ width:14px; height:14px; transition:transform .2s var(--ease); }
.svc-card:hover .svc-link svg{ transform:translateX(4px); }

@media (max-width: 720px){ .svc-grid{ grid-template-columns:1fr; } }

/* ---------- process / numbered steps (legit sequence) ---------- */
.process{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
.process-step{ background:var(--void); padding:30px 26px; }
.process-step .num{ font-family:var(--mono); color:var(--muted-2); font-size:.8rem; }
.process-step h4{ font-family:var(--serif); font-size:1.15rem; margin:14px 0 10px; color:var(--paper); font-weight:600; }
.process-step p{ color:var(--muted); font-size:.9rem; }
@media (max-width: 900px){ .process{ grid-template-columns:1fr 1fr; } }
@media (max-width: 560px){ .process{ grid-template-columns:1fr; } }

/* ---------- values / about ---------- */
.values-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.value-card{ border:1px solid var(--line); border-radius:var(--radius); padding:28px; background:var(--ink); }
.value-card h4{ font-family:var(--serif); font-size:1.2rem; color:var(--paper); font-weight:600; }
.value-card p{ margin-top:10px; color:var(--muted); font-size:.92rem; }
@media (max-width:820px){ .values-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .values-grid{ grid-template-columns:1fr; } }

.about-hero{ display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:center; }
.about-figure{ border:1px solid var(--line-strong); border-radius:var(--radius); padding:30px; background:linear-gradient(160deg,var(--ink-2),var(--ink)); }
.about-figure dl{ display:grid; grid-template-columns:1fr 1fr; gap:20px 24px; }
.about-figure dt{ font-family:var(--mono); font-size:.68rem; letter-spacing:.1em; text-transform:uppercase; color:var(--muted-2); }
.about-figure dd{ margin:6px 0 0; font-family:var(--serif); font-size:1.5rem; color:var(--paper); }

/* ---------- CTA band ---------- */
.cta-band{ border:1px solid var(--line-strong); border-radius:20px; padding:60px; background:radial-gradient(120% 160% at 0% 0%, var(--violet-deep), var(--ink) 60%); display:flex; justify-content:space-between; align-items:center; gap:40px; flex-wrap:wrap; }
.cta-band h2{ max-width:520px; }
@media (max-width:720px){ .cta-band{ padding:36px; } }

/* ---------- service detail pages ---------- */
.svc-hero{ padding:64px 0 30px; }
.breadcrumb{ font-family:var(--mono); font-size:.78rem; color:var(--muted-2); display:flex; gap:8px; align-items:center; margin-bottom:22px; }
.breadcrumb a{ color:var(--muted); }
.breadcrumb a:hover{ color:var(--orchid); }
.svc-hero-grid{ display:grid; grid-template-columns:1.2fr .8fr; gap:56px; align-items:start; }
.svc-meta{ border:1px solid var(--line); border-radius:var(--radius); padding:24px; background:var(--ink); }
.svc-meta dl{ display:flex; flex-direction:column; gap:16px; }
.svc-meta dt{ font-family:var(--mono); font-size:.68rem; letter-spacing:.1em; text-transform:uppercase; color:var(--muted-2); }
.svc-meta dd{ margin:4px 0 0; color:var(--paper); font-size:.95rem; }

.checklist{ display:flex; flex-direction:column; gap:0; margin-top:10px; }
.checklist li{ display:flex; gap:14px; padding:16px 0; border-bottom:1px solid var(--line); }
.checklist li svg{ flex:none; width:20px; height:20px; color:var(--good); margin-top:2px; }
.checklist li div strong{ display:block; color:var(--paper); font-size:.98rem; margin-bottom:4px; }
.checklist li div span{ color:var(--muted); font-size:.9rem; }

.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:56px; }
@media (max-width:860px){ .two-col, .svc-hero-grid, .about-hero{ grid-template-columns:1fr; } }

.service-nav{ display:flex; flex-wrap:wrap; gap:10px; margin-top:14px; }
.service-nav a{ font-family:var(--mono); font-size:.8rem; padding:9px 14px; border:1px solid var(--line); border-radius:999px; color:var(--muted); }
.service-nav a.is-current{ color:var(--void); background:var(--orchid); border-color:var(--orchid); }
.service-nav a:hover{ border-color:var(--orchid); color:var(--paper); }

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:56px; align-items:start; }
.contact-card{ border:1px solid var(--line); border-radius:var(--radius); padding:22px; background:var(--ink); display:flex; gap:16px; margin-bottom:14px; }
.contact-card svg{ width:22px; height:22px; color:var(--orchid); flex:none; margin-top:2px; }
.contact-card strong{ display:block; color:var(--paper); margin-bottom:4px; }
.contact-card span{ color:var(--muted); font-size:.92rem; }

.field{ margin-bottom:20px; }
.field label{ display:block; font-family:var(--mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color:var(--muted); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; background:var(--ink); border:1px solid var(--line-strong); border-radius:10px;
  padding:13px 14px; color:var(--paper); font-family:var(--sans); font-size:.95rem;
}
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--orchid); background:var(--ink-2); }
.field textarea{ resize:vertical; min-height:130px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media (max-width:560px){ .form-row{ grid-template-columns:1fr; } }
.form-note{ font-size:.82rem; color:var(--muted-2); margin-top:14px; }

/* ---------- footer ---------- */
.site-footer{ border-top:1px solid var(--line); padding:64px 0 34px; background:var(--void); }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr; gap:40px; margin-bottom:50px; }
.footer-grid h5{ font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--muted-2); margin-bottom:16px; }
.footer-grid ul li{ margin-bottom:10px; }
.footer-grid a{ color:var(--muted); font-size:.92rem; }
.footer-grid a:hover{ color:var(--orchid); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:26px; border-top:1px solid var(--line); flex-wrap:wrap; gap:12px; }
.footer-bottom span{ color:var(--muted-2); font-size:.82rem; font-family:var(--mono); }
@media (max-width:820px){ .footer-grid{ grid-template-columns:1fr 1fr; } }

/* ---------- reveal on scroll ---------- */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in{ opacity:1; transform:translateY(0); }

/* ---------- generic page hero (about/services/contact top) ---------- */
.page-hero{ padding:70px 0 20px; max-width:760px; }
.page-hero h1{ margin-top:16px; }
.page-hero .lede{ margin-top:18px; font-size:1.1rem; }