/* Layout: a black "business card" hero band, then a quiet off-white editorial page; brackets [ ] mark every section, as in the brand mark. */
:root {
  --paper: #FCFCFB;        /* page ground, the brand's near-white */
  --ink: #1F1F1F;          /* primary text */
  --ink-soft: #55524E;     /* secondary text, warm-biased grey */
  --rule: #DDD9D4;         /* hairlines */
  --stone: #C4BFBA;        /* the matchbox grey, used as the single accent */
  --card: #242424;         /* hero band, from the brand guide */
  --card-ink: #F4F3F1;     /* text on the hero band */
  --card-soft: #A9A49F;
  --panel: #F3F1EE;        /* quiet fill for the stats and flow */

  --display: "EB Garamond", "Garamond", "Iowan Old Style", Georgia, serif;
  --body: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --measure: 64ch;
  --wrap: 1120px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #161616; --ink: #EDEBE8; --ink-soft: #A6A19B; --rule: #34312E;
    --stone: #8F8983; --card: #0C0C0C; --card-ink: #F4F3F1; --card-soft: #9C978F;
    --panel: #1F1E1D; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #161616; --ink: #EDEBE8; --ink-soft: #A6A19B; --rule: #34312E;
  --stone: #8F8983; --card: #0C0C0C; --card-ink: #F4F3F1; --card-soft: #9C978F;
  --panel: #1F1E1D; color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--stone); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { font-family: var(--display); font-weight: 500; text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
p { margin: 0; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

.label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.label::before { content: "[\00a0"; }
.label::after { content: "\00a0]"; }

/* ---------- Hero band ---------- */
.hero { background: var(--card); color: var(--card-ink); }
.hero .wrap { padding-block: 28px 72px; display: grid; gap: 64px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.lockup { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.mark { width: 40px; height: 40px; flex: none; }
.mark .disc { fill: var(--card-ink); }
.mark .glyph { stroke: var(--card); fill: none; stroke-width: 6; }
.mark .dot { fill: var(--card); }
.wordmark { font-family: var(--display); font-weight: 600; font-size: 21px; line-height: 1; letter-spacing: -0.005em; }
.nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 14px; }
.nav a { text-decoration: none; color: var(--card-soft); }
.nav a:hover { color: var(--card-ink); }

.hero-body { display: grid; gap: 28px; max-width: 900px; }
.hero .label { color: var(--card-soft); }
.hero h1 { font-size: clamp(40px, 6.4vw, 76px); line-height: 1.04; }
.hero h1 em { font-style: italic; color: var(--stone); }
.hero-lede { font-size: 19px; color: var(--card-soft); max-width: 60ch; }
.hero-lede strong { color: var(--card-ink); font-weight: 500; }
.ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 15px/1 var(--body);
  padding: 14px 20px; border-radius: 999px; text-decoration: none;
  border: 1px solid var(--card-ink); cursor: pointer;
}
.btn.solid { background: var(--card-ink); color: var(--card); }
.btn.ghost { background: transparent; color: var(--card-ink); border-color: #5a5652; }
.btn.ghost:hover { border-color: var(--card-ink); }

.clients { border-top: 1px solid #3a3734; padding-top: 22px; display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: baseline; }
.clients .label { margin-right: 4px; }
.clients span.c { font-family: var(--display); font-size: 20px; color: var(--card-ink); }

/* ---------- Sections ---------- */
section.block { padding-block: 88px; border-bottom: 1px solid var(--rule); }
.section-head { display: grid; gap: 14px; margin-bottom: 48px; max-width: 760px; }
.section-head h2 { font-size: clamp(32px, 4.2vw, 46px); line-height: 1.1; }
.section-head p { color: var(--ink-soft); max-width: var(--measure); }

/* ---------- Case studies ---------- */
.cases { display: grid; gap: 0; }
.case {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: 24px 56px;
  padding-block: 48px;
  border-top: 1px solid var(--rule);
}
.case:last-child { padding-bottom: 0; }
.case-meta { display: grid; gap: 10px; align-content: start; }
.case-meta .co { font-family: var(--display); font-size: 26px; line-height: 1.15; }
.case-meta .role { font-size: 14px; color: var(--ink-soft); }
.case-meta .years { font-family: var(--mono); font-size: 13px; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.tag { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; padding: 4px 8px; border: 1px solid var(--rule); border-radius: 999px; color: var(--ink-soft); }

.case-body { display: grid; gap: 22px; min-width: 0; }
.case-body h3 { font-size: clamp(26px, 3vw, 34px); line-height: 1.15; }
.pao { display: grid; gap: 16px; max-width: var(--measure); }
.pao div { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 16px; }
.pao dt { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); padding-top: 4px; }
.pao dd { margin: 0; }
dl { margin: 0; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 6px; overflow: hidden; }
.stat { background: var(--panel); padding: 18px 16px; display: grid; gap: 6px; align-content: start; }
.stat b { font-family: var(--display); font-weight: 500; font-size: 34px; line-height: 1; font-variant-numeric: tabular-nums; }
.stat span { font-size: 13px; color: var(--ink-soft); line-height: 1.4; }

.flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; counter-reset: step; }
.flow li { counter-increment: step; background: var(--panel); border: 1px solid var(--rule); border-radius: 6px; padding: 14px 12px; display: grid; gap: 6px; align-content: start; position: relative; }
.flow li::before { content: counter(step, decimal-leading-zero); font-family: var(--mono); font-size: 11px; color: var(--ink-soft); }
.flow b { font-weight: 600; font-size: 14px; }
.flow span { font-size: 13px; color: var(--ink-soft); line-height: 1.4; }
.flow-cap { font-size: 13px; color: var(--ink-soft); }

/* ---------- Approach ---------- */
.principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 56px; }
.principle { display: grid; gap: 10px; border-top: 1px solid var(--ink); padding-top: 18px; }
.principle h3 { font-size: 25px; line-height: 1.2; }
.principle p { color: var(--ink-soft); }

.engage { margin-top: 64px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.engage div { border: 1px solid var(--rule); border-radius: 6px; padding: 22px; display: grid; gap: 8px; align-content: start; }
.engage h3 { font-size: 22px; }
.engage p { font-size: 15px; color: var(--ink-soft); }

/* ---------- Timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; display: grid; }
.timeline li {
  display: grid;
  grid-template-columns: 120px minmax(0, 260px) minmax(0, 1fr);
  gap: 8px 32px;
  padding-block: 18px;
  border-top: 1px solid var(--rule);
  align-items: baseline;
}
.timeline .yr { font-family: var(--mono); font-size: 13px; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.timeline .co { font-family: var(--display); font-size: 21px; line-height: 1.2; }
.timeline .co small { display: block; font-family: var(--body); font-size: 13px; color: var(--ink-soft); margin-top: 2px; }
.timeline p { color: var(--ink-soft); font-size: 15.5px; }
.timeline li.mark-row .co::after { content: ""; }

.creds { margin-top: 48px; display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- Contact ---------- */
.contact { background: var(--card); color: var(--card-ink); }
.contact .wrap { padding-block: 88px 40px; display: grid; gap: 40px; }
.contact h2 { font-size: clamp(36px, 5vw, 58px); line-height: 1.06; max-width: 16ch; }
.contact .label { color: var(--card-soft); }
.contact-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.email { font-family: var(--display); font-size: clamp(24px, 3vw, 32px); user-select: all; word-break: break-all; }
.copy { font: 500 13px/1 var(--body); background: transparent; color: var(--card-ink); border: 1px solid #5a5652; border-radius: 999px; padding: 10px 14px; cursor: pointer; }
.copy:hover { border-color: var(--card-ink); }
.contact-links { display: flex; flex-wrap: wrap; gap: 24px; font-size: 15px; color: var(--card-soft); }
.foot { border-top: 1px solid #3a3734; padding-top: 22px; display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; font-size: 13px; color: var(--card-soft); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .case { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .flow { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .engage { grid-template-columns: minmax(0, 1fr); }
  .timeline li { grid-template-columns: 96px minmax(0, 1fr); }
  .timeline li p { grid-column: 2; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  section.block { padding-block: 64px; }
  .hero .wrap { gap: 48px; padding-block: 22px 56px; }
  .nav { display: none; }
  .principles { grid-template-columns: minmax(0, 1fr); }
  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pao div { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .pao dt { padding-top: 0; }
  .timeline li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .timeline li p { grid-column: 1; }
}
@media (prefers-reduced-motion: no-preference) {
  .btn, .copy, .nav a { transition: border-color .15s, color .15s, background-color .15s; }
}

/* ---------- Homepage ---------- */
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 48px; align-items: center; }
.big-mark { width: clamp(160px, 22vw, 260px); height: auto; }
.big-mark .disc { fill: var(--card-ink); }
.big-mark .glyph { stroke: var(--card); fill: none; stroke-width: 6; }
.big-mark .dot { fill: var(--card); }
.outcomes { display: grid; gap: 24px; }
.outcome-row { display: grid; grid-template-columns: minmax(0, 300px) minmax(0, 1fr); gap: 16px 56px; padding-top: 24px; border-top: 1px solid var(--rule); }
.outcome-row .co { font-family: var(--display); font-size: 24px; line-height: 1.2; }
.outcome-row .co small { display: block; font-family: var(--body); font-size: 13px; color: var(--ink-soft); margin-top: 4px; }
.outcome-row p { color: var(--ink-soft); max-width: var(--measure); }
.more-link { display: inline-flex; gap: 8px; margin-top: 40px; font-weight: 500; text-decoration: none; border-bottom: 1px solid var(--ink); padding-bottom: 2px; }
.more-link:hover { border-bottom-color: var(--stone); }
.engage.home { margin-top: 0; }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .big-mark { display: none; }
  .outcome-row { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Bench steps & network teaser ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; counter-reset: step; }
.steps li { counter-increment: step; border-top: 1px solid var(--ink); padding-top: 18px; display: grid; gap: 10px; align-content: start; }
.steps li::before { content: counter(step, decimal-leading-zero); font-family: var(--mono); font-size: 12px; color: var(--ink-soft); }
.steps h3 { font-size: 25px; line-height: 1.2; }
.steps p { color: var(--ink-soft); }
.models { margin-top: 40px; padding: 22px 24px; background: var(--panel); border: 1px solid var(--rule); border-radius: 6px; max-width: 760px; }
.models p { color: var(--ink-soft); }
.models strong { color: var(--ink); font-weight: 600; }
.subhead { margin: 64px 0 24px; }
.network-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.person-card { display: grid; gap: 14px; align-content: start; padding: 22px; border: 1px solid var(--rule); border-radius: 6px; text-decoration: none; }
.person-card:hover { border-color: var(--ink); }
.avatar { width: 72px; height: 72px; border-radius: 50%; background: var(--card); color: var(--card-ink); display: grid; place-items: center; font-family: var(--display); font-size: 26px; }
.person-card .name { font-family: var(--display); font-size: 22px; line-height: 1.2; }
.person-card .headline { font-size: 14px; color: var(--ink-soft); }
.person-card .go { font-size: 14px; font-weight: 500; }
.placeholder-card { display: grid; place-items: center; text-align: center; padding: 22px; border: 1px dashed var(--stone); border-radius: 6px; color: var(--ink-soft); font-size: 14px; min-height: 180px; }
@media (max-width: 900px) {
  .steps, .network-grid { grid-template-columns: minmax(0, 1fr); }
  .placeholder-card + .placeholder-card { display: none; }
  .placeholder-card { min-height: 96px; }
}

/* ---------- Inner pages ---------- */
.hero.page .wrap { padding-block: 28px 64px; gap: 56px; }
.hero.page h1 { font-size: clamp(36px, 5vw, 60px); }
.nav a[aria-current="page"] { color: var(--card-ink); }
.contact-row .btn.ghost { border-color: #5a5652; }