/* ============================================================
   agentist.co — the firm.
   Editorial "engineering dossier" register of the Agentist brand.
   Inter display, JetBrains Mono structure labels, ink + one indigo
   accent. Premium = scale, air, rule discipline — not decoration.
   ============================================================ */

:root{
  --bg:#ffffff;
  --paper:#f6f7f9;
  --ink:#0a0d13;
  --ink-band:#0b0e15;
  --muted:#54617a;
  --faint:#8a97aa;
  --hairline:#e6eaf0;
  --hairline-2:#eef1f5;
  --line-dark:rgba(233,238,247,.14);
  --muted-d:#9aa6bb;
  --faint-d:#5f6c82;
  --indigo:#5b5bd6;
  --violet:#7c3aed;
  --indigo-d:#9b9cff;
  --violet-d:#bfa1ff;
  --maxw:1240px;
  --pad:48px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; overflow-x:clip; }
body{ overflow-x:clip; }
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased; font-feature-settings:"ss01","cv05";
}
a{ color:inherit; text-decoration:none; }
h1,h2,h3{ text-wrap:balance; margin:0; }
p{ margin:0; text-wrap:pretty; }

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 var(--pad); }
@media(max-width:680px){ :root{ --pad:24px; } }

.mono{ font-family:'JetBrains Mono',ui-monospace,monospace; }
.kicker{
  font-family:'JetBrains Mono',monospace;
  font-size:11.5px; font-weight:500; letter-spacing:.22em; text-transform:uppercase;
  color:var(--faint); display:inline-flex; align-items:center; gap:14px;
}
.kicker i{ color:var(--indigo); font-style:normal; }
.grad{
  background:linear-gradient(98deg,var(--indigo) 6%,var(--violet) 94%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 26px; border-radius:8px;
  font-weight:600; font-size:15px; letter-spacing:-.01em;
  background:var(--ink); color:#fff; border:1px solid var(--ink);
  cursor:pointer; transition:transform .15s, background .15s;
}
.btn::after{ content:"→"; font-size:15px; opacity:.6; transition:transform .2s; }
.btn:hover{ background:#000; }
.btn:hover::after{ transform:translateX(3px); }
.btn-sm{
  display:inline-flex; align-items:center; gap:8px;
  padding:9px 18px; border-radius:7px; font-weight:600; font-size:14px;
  background:var(--ink); color:#fff; border:1px solid var(--ink); transition:background .15s;
}
.btn-sm:hover{ background:#000; }

/* ---------- masthead ---------- */
/* ── SHARED MASTHEAD SPEC — keep byte-identical with home.css ────────────── */
header{
  position:sticky; top:0; z-index:50;
  background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent; transition:border-color .2s;
}
header.scrolled{ border-bottom-color:var(--hairline); }
.header-inner{
  max-width:1200px; margin:0 auto; padding:0 28px;
  height:72px; display:flex; align-items:center; gap:32px;
}
.brand{ display:flex; align-items:center; }
.brand img{ height:22px; display:block; }
header nav{ display:flex; gap:30px; font-size:14px; font-weight:500; color:var(--muted); }
header nav a{ white-space:nowrap; transition:.15s; }
header nav a:hover{ color:var(--ink); }
.header-spacer{ flex:1; }
header .btn, header .btn-sm{ padding:9px 18px; font-size:14px; border-radius:8px; }
@media(max-width:860px){ header nav{ display:none; } }
/* ── end shared masthead ──────────────────────────────────────────────────── */

/* ---------- hero ---------- */
.hero{ padding:88px 0 96px; border-bottom:1px solid var(--hairline); }
.ribbon{
  display:flex; align-items:center; gap:18px; flex-wrap:wrap;
  padding-bottom:34px; margin-bottom:54px; border-bottom:1px solid var(--hairline);
  font-family:'JetBrains Mono',monospace; font-size:12px; letter-spacing:.08em; color:var(--faint);
}
.ribbon .lead-tag{ color:var(--ink); font-weight:500; }
.ribbon .ds{ color:var(--indigo); }
.hero h1{
  font-size:clamp(48px,7.4vw,108px); font-weight:800; line-height:.96; letter-spacing:-.04em;
  margin:0; max-width:14ch;
}
.hero-grid{
  display:grid; grid-template-columns:1fr auto; gap:48px; align-items:end;
  margin-top:54px;
}
.hero .lead{
  font-size:21px; line-height:1.55; color:var(--muted); max-width:50ch; text-wrap:balance;
}
.hero .lead strong{ color:var(--ink); font-weight:600; }
.hero-cta{ display:flex; flex-direction:column; align-items:flex-start; gap:14px; }
.hero-cta .sub{ font-family:'JetBrains Mono',monospace; font-size:12.5px; color:var(--faint); }
@media(max-width:760px){
  .hero{ padding:28px 0 52px; }
  .ribbon{ margin-bottom:30px; padding-bottom:20px; }
  .hero-grid{ grid-template-columns:1fr; gap:26px; margin-top:30px; align-items:start; }
  .hero .lead{ font-size:18px; }
}
@media(max-width:520px){
  .hero h1{ font-size:clamp(42px,13vw,64px); line-height:1.0; max-width:100%; overflow-wrap:break-word; }
  .hero-cta{ width:100%; }
  .ribbon{ flex-direction:column; align-items:flex-start; gap:9px; font-size:10.5px; letter-spacing:.02em; }
  .ribbon .lead-tag, .ribbon .ds{ white-space:nowrap; }
}

/* ---------- section scaffolding ---------- */
section.sec{ padding:120px 0; border-bottom:1px solid var(--hairline); }
section.sec.paper{ background:var(--paper); }
.sec-head{ margin-bottom:18px; }
.sec-head .kicker{ display:inline-flex; margin-bottom:20px; }
.sec-head h2{
  font-size:clamp(32px,4vw,56px); font-weight:800; line-height:1.04; letter-spacing:-.032em;
  max-width:18ch;
}
.thesis{
  font-size:clamp(19px,1.8vw,23px); line-height:1.55; color:var(--muted);
  max-width:60ch; margin:34px 0 0; font-weight:400;
}
.thesis strong{ color:var(--ink); font-weight:600; }
.lead-line{
  font-size:clamp(19px,1.9vw,23px); font-weight:400; font-style:italic;
  color:var(--muted); letter-spacing:-.008em; line-height:1.35; margin:14px 0 0; max-width:none;
}
.lead-sub{
  font-size:16px; line-height:1.6; color:var(--muted); margin:12px 0 0; max-width:62ch;
}
@media(max-width:760px){ section.sec{ padding:74px 0; } }

/* ---------- capabilities: editorial index ---------- */
.cap-list{ margin-top:64px; border-top:1px solid var(--ink); }
.cap-row{
  display:grid; grid-template-columns:96px minmax(0,1fr) minmax(0,1.1fr); gap:40px;
  padding:42px 0 40px; border-bottom:1px solid var(--hairline);
  align-items:start; position:relative;
}
.cap-row::before{
  content:""; position:absolute; left:-24px; right:-24px; top:0; bottom:0; z-index:-1;
  border-radius:0 14px 14px 0;
  background:linear-gradient(90deg, transparent 0, color-mix(in srgb,var(--indigo) 7%,transparent) 24px, transparent 80%);
  opacity:0; transition:opacity .25s;
}
.cap-row:hover::before{ opacity:1; }
.cap-idx{ display:flex; flex-direction:column; gap:16px; }
.cap-idx .ic{ width:30px; height:30px; color:var(--indigo); }
.cap-idx .ic svg{ width:100%; height:100%; display:block; }
.cap-idx .no{
  font-family:'JetBrains Mono',monospace; font-size:13px; color:var(--faint); letter-spacing:.1em;
}
.cap-row h3{ font-size:30px; font-weight:800; letter-spacing:-.022em; line-height:1.1; margin:0 0 12px; }
.cap-q{ font-size:16px; color:var(--muted); line-height:1.6; max-width:34ch; text-wrap:balance; }
.cap-out{ padding-top:4px; }
.cap-out .lbl{
  font-family:'JetBrains Mono',monospace; font-size:10.5px; letter-spacing:.18em;
  text-transform:uppercase; color:var(--faint); display:block; margin-bottom:8px;
}
.cap-leave{
  font-size:17.5px; line-height:1.5; color:var(--ink); font-weight:600; letter-spacing:-.01em;
  margin:0 0 20px; max-width:40ch; text-wrap:balance;
}
.cap-kw{ font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--faint); line-height:1.7; text-wrap:balance; }
@media(max-width:900px){
  .cap-row{ grid-template-columns:1fr; gap:18px; padding:34px 0; }
  .cap-idx{ flex-direction:row; align-items:center; gap:14px; }
  .cap-row::before{ left:-16px; right:-16px; }
}

/* ---------- how we work: numbered tenets with icons ---------- */
.tenets{ margin-top:64px; display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.tenet{
  position:relative; overflow:hidden;
  border:1px solid var(--hairline); border-radius:16px; background:var(--bg);
  padding:32px 32px 34px;
  transition:border-color .22s, transform .22s, box-shadow .22s;
}
.tenet::before{
  content:""; position:absolute; left:0; right:0; top:0; height:2px;
  background:linear-gradient(90deg,var(--indigo),var(--violet));
  transform:scaleX(0); transform-origin:left; transition:transform .35s cubic-bezier(.2,.6,.2,1);
}
.tenet:hover{ transform:translateY(-4px); border-color:color-mix(in srgb,var(--indigo) 40%,var(--hairline)); box-shadow:0 22px 44px -28px rgba(11,14,21,.35); }
.tenet:hover::before{ transform:scaleX(1); }
.tenet .top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:24px; }
.tenet .chip{
  width:48px; height:48px; border-radius:13px; display:grid; place-items:center;
  background:color-mix(in srgb,var(--indigo) 9%,transparent); color:var(--indigo);
  transition:background .22s, color .22s, transform .22s;
}
.tenet .chip svg{ width:24px; height:24px; display:block; }
.tenet:hover .chip{ background:var(--indigo); color:#fff; transform:scale(1.04); }
.tenet .no{
  font-family:'JetBrains Mono',monospace; font-size:13px; color:var(--faint); letter-spacing:.12em;
}
.tenet:hover .no{ color:var(--indigo); }
.tenet b{ display:block; font-size:18px; font-weight:700; letter-spacing:-.014em; margin-bottom:9px; }
.tenet p{ font-size:14.5px; color:var(--muted); line-height:1.62; max-width:34ch; }
@media(max-width:860px){ .tenets{ grid-template-columns:1fr 1fr; } }
@media(max-width:560px){ .tenets{ grid-template-columns:1fr; } }

/* ---------- case studies: full-width solved engagements ---------- */
.cases{ margin-top:64px; border-top:1px solid var(--ink); }
.case{
  display:grid; grid-template-columns:300px 1fr; gap:52px; align-items:stretch;
  padding:48px 0; border-bottom:1px solid var(--hairline);
  position:relative;
}
.case::before{
  content:""; position:absolute; left:-24px; right:-24px; top:0; bottom:0; z-index:-1;
  border-radius:0 14px 14px 0;
  background:linear-gradient(90deg, transparent 0, color-mix(in srgb,var(--indigo) 7%,transparent) 24px, transparent 80%);
  opacity:0; transition:opacity .25s;
}
.case:hover::before{ opacity:1; }
.case-meta{ display:flex; flex-direction:column; gap:12px; }
.case-spec{
  margin-top:auto; padding-top:30px; display:flex; flex-direction:column; gap:11px;
  border-top:1px solid var(--hairline);
}
.case-spec .row{ display:flex; align-items:baseline; gap:16px; }
.case-spec .k{
  font-family:'JetBrains Mono',monospace; font-size:10.5px; letter-spacing:.16em;
  text-transform:uppercase; color:var(--faint); width:92px; flex:none;
}
.case-spec .v{ font-size:13.5px; color:var(--ink); font-weight:500; }
.case-spec .v.live{ display:inline-flex; align-items:center; gap:8px; }
.case-spec .v.live::before{
  content:""; width:7px; height:7px; border-radius:50%;
  background:var(--indigo); box-shadow:0 0 0 3px color-mix(in srgb,var(--indigo) 18%,transparent);
}
@media(max-width:860px){ .case-spec{ margin-top:24px; } }
.case-no{ font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--indigo); letter-spacing:.16em; }
.case-client{ font-size:19px; font-weight:700; letter-spacing:-.015em; line-height:1.3; }
.case-sector{
  font-family:'JetBrains Mono',monospace; font-size:11px; letter-spacing:.16em;
  text-transform:uppercase; color:var(--faint);
}
.case-body h3{
  font-size:clamp(22px,2.2vw,28px); font-weight:800; letter-spacing:-.022em; line-height:1.16;
  margin:0; max-width:34ch; text-wrap:balance;
}
.case-body p{ font-size:16px; color:var(--muted); line-height:1.68; margin:16px 0 0; max-width:64ch; text-wrap:balance; }
.case-foot{
  display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
  margin-top:24px;
}
.case-tags{ font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--faint); }
.case-soon{
  display:inline-flex; align-items:center; gap:9px; flex:none;
  font-family:'JetBrains Mono',monospace; font-size:11px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--faint); border:1px solid var(--hairline); border-radius:999px; padding:6px 15px;
}
.case-soon::before{
  content:""; width:6px; height:6px; border-radius:50%;
  background:linear-gradient(140deg,var(--indigo),var(--violet));
}
@media(max-width:860px){
  .case{ grid-template-columns:1fr; gap:18px; padding:38px 0; }
  .case::before{ left:-16px; right:-16px; }
}

/* ---------- use cases: filed columns (legacy) ---------- */
.work-grid{ margin-top:64px; display:grid; grid-template-columns:repeat(3,1fr); gap:0; }
.work-col{
  padding:36px 36px 34px; border-top:2px solid var(--ink);
  display:flex; flex-direction:column;
}
.work-col + .work-col{ border-left:1px solid var(--hairline); }
.work-col .dom{
  font-family:'JetBrains Mono',monospace; font-size:11px; letter-spacing:.18em;
  text-transform:uppercase; color:var(--indigo); margin-bottom:26px;
}
.work-col h3{ font-size:22px; font-weight:800; letter-spacing:-.018em; line-height:1.24; margin:0 0 14px; text-wrap:balance; }
.work-col p{ font-size:15px; color:var(--muted); line-height:1.66; margin:0 0 26px; }
.work-col .ctrl{
  margin-top:auto; padding-top:18px; border-top:1px solid var(--hairline);
  font-family:'JetBrains Mono',monospace; font-size:11.5px; color:var(--faint); line-height:1.7;
}
@media(max-width:860px){
  .work-grid{ grid-template-columns:1fr; }
  .work-col{ padding:30px 0; }
  .work-col + .work-col{ border-left:none; }
}

/* ---------- contact: dark close ---------- */
.contact{ background:var(--ink-band); color:#fff; padding:130px 0 124px; }
.contact .kicker{ color:var(--faint-d); margin-bottom:30px; }
.contact .kicker i{ color:var(--indigo-d); }
.contact h2{
  font-size:clamp(34px,4.4vw,60px); font-weight:800; letter-spacing:-.03em; line-height:1.05;
  color:#fff; max-width:17ch;
}
.contact .grad{ background:linear-gradient(98deg,var(--indigo-d),var(--violet-d)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.contact p{ font-size:18px; color:var(--muted-d); max-width:56ch; margin:26px 0 48px; line-height:1.65; }
.contact .mail{
  display:inline-flex; align-items:center; gap:12px;
  font-family:'JetBrains Mono',monospace; font-size:17px; color:#fff;
  border-bottom:2px solid var(--indigo-d); padding-bottom:5px; transition:.15s;
}
.contact .mail::after{ content:"→"; transition:transform .2s; }
.contact .mail:hover{ color:var(--indigo-d); }
.contact .mail:hover::after{ transform:translateX(4px); }

/* ---------- footer (dark, continuous base) ---------- */
footer{ background:var(--ink-band); color:var(--muted-d); padding:64px 0 56px; border-top:1px solid var(--line-dark); }
.foot-grid{
  max-width:var(--maxw); margin:0 auto; padding:0 var(--pad);
  display:grid; grid-template-columns:1.7fr 1fr 1fr 1fr; gap:48px; align-items:start;
}
.foot-brand img{ height:18px; opacity:.92; display:block; margin-bottom:18px; filter:invert(1) brightness(1.8); }
.foot-brand p{ margin:0 0 18px; font-size:14px; line-height:1.6; color:var(--muted-d); max-width:30ch; }
.foot-brand .dom{ font-family:'JetBrains Mono',monospace; font-size:11.5px; color:var(--faint-d); letter-spacing:.04em; }
.foot-col h4{
  margin:0 0 16px; font-family:'JetBrains Mono',monospace; font-size:11px; font-weight:500;
  letter-spacing:.18em; text-transform:uppercase; color:var(--faint-d);
}
.foot-col a{ display:block; padding:6px 0; font-size:14px; color:var(--muted-d); transition:.15s; }
.foot-col a:hover{ color:#fff; }
@media(max-width:860px){
  .foot-grid{ grid-template-columns:1fr 1fr; gap:36px; }
  .foot-brand{ grid-column:1 / -1; }
}

/* ---------- reveal (gated by html.rv-live from home.js) ---------- */
@media (prefers-reduced-motion: no-preference){
  html.rv-live .rv{ opacity:0; transform:translateY(26px); transition:opacity 1.1s cubic-bezier(.2,.6,.2,1), transform 1.1s cubic-bezier(.2,.6,.2,1); }
  html.rv-live .rv.in{ opacity:1; transform:none; }
  html.rv-live .rv.d1{ transition-delay:.12s; } html.rv-live .rv.d2{ transition-delay:.24s; } html.rv-live .rv.d3{ transition-delay:.36s; }
}