:root{
  --paper: #eff0e9;
  --paper-dim: #e3e5da;
  --paper-panel: #f7f8f2;

  --line: #c7cabb;
  --line-strong: #15150f;

  --ink: #15150f;
  --ink-soft: #4a4b3f;
  --ink-faint: #8b8c7c;

  --accent: #f4d93e;
  --accent-edge: #d9bd1c;

  --max: 840px;
  --max-wide: 1040px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;

  --serif: "Big Shoulders Display", ui-sans-serif, sans-serif;
  --sans: "Source Sans 3", ui-sans-serif, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
}

*, *::before, *::after{ box-sizing: border-box; }

html{ background: var(--paper); }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap{ max-width: var(--max); margin: 0 auto; padding-inline: 20px; }
.wrap-wide{ max-width: var(--max-wide); margin: 0 auto; padding-inline: 20px; }

h1, h2, h3{
  font-family: var(--serif);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 0.92;
  color: var(--ink);
  text-wrap: balance;
  margin: 0;
}

p{ margin: 0; }
a{ color: inherit; }
hr.divider{ border: none; border-top: 1px solid var(--line); margin: 0; }
img{ max-width: 100%; display: block; }

::selection{ background: var(--accent); color: var(--ink); }

/* ---------- tags / eyebrows ---------- */

.tag{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.tag .dot{ width: 6px; height: 6px; background: var(--ink); border-radius: 1px; flex: none; }

/* ---------- highlighter mark ---------- */

mark{
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-size: 0% 100%;
  background-position: 0 0;
  color: var(--ink);
  padding: 0.02em 0.28em;
  border-radius: 1px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  transition: background-size 0.6s ease 0.15s;
}
.reveal.is-visible mark{ background-size: 100% 100%; }
@media (prefers-reduced-motion: reduce){
  mark{ background-size: 100% 100%; transition: none; }
}

/* ---------- nav ---------- */

.nav{
  position: sticky; top: 0; z-index: 20;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.nav .wrap{ display: flex; align-items: center; justify-content: space-between; padding-block: 16px; gap: 20px; }
.nav-mark{
  position: relative; display: inline-flex; align-items: center;
  font-family: var(--serif); font-weight: 800; text-transform: uppercase; font-size: 20px;
  text-decoration: none; color: var(--ink); letter-spacing: 0.01em;
}
.mark-text{ position: relative; z-index: 1; background: var(--paper); padding-inline: 2px; }
.mark-text span{ color: var(--accent-edge); }
.mark-arrow{
  position: absolute; left: -16px; top: 50%; transform: translateY(-50%);
  width: calc(100% + 32px); height: 18px; z-index: 0; pointer-events: none;
}
.nav-links{ list-style: none; display: flex; gap: 28px; margin: 0; padding: 0; }
.nav-cta-mobile{ display: none; }
.nav-links a{
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.05em; text-transform: uppercase;
  text-decoration: none; color: var(--ink-soft); border-bottom: 1px solid transparent; padding-bottom: 2px;
}
.nav-links a:hover{ color: var(--ink); border-color: var(--accent-edge); }
.nav-cta{
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.04em; text-transform: uppercase;
  text-decoration: none; color: var(--ink); border: 1px solid var(--ink); padding: 9px 16px;
}
.nav-cta:hover{ background: var(--ink); color: var(--paper); }
.nav-toggle{
  display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 6px;
}
.nav-toggle span{ width: 22px; height: 2px; background: var(--ink); }

/* ---------- meta strip ---------- */

.status-strip{
  background: var(--ink); color: var(--paper);
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.06em; text-transform: uppercase;
}
.status-strip .wrap{ display: flex; justify-content: space-between; gap: 16px; padding-block: 9px; flex-wrap: wrap; }
.status-strip strong{ color: var(--accent); font-weight: 600; }

/* ---------- section base ---------- */

section{ padding-block: var(--space-7); border-bottom: 1px solid var(--line); }
.section-head{ margin-bottom: var(--space-5); }
.section-head h2{ font-size: clamp(28px, 4.2vw, 42px); margin-top: 8px; }
.section-head p{ margin-top: var(--space-3); color: var(--ink-soft); font-size: 17px; max-width: 60ch; }

/* ---------- hero ---------- */

.hero{ padding-block: 60px 48px; }
.hero-eyebrow{ margin-bottom: 18px; }
.hero h1{ font-size: clamp(40px, 8vw, 76px); }
.hero h1 em{ font-style: normal; color: var(--ink); }
.hero-sub{ margin-top: 22px; max-width: 58ch; font-size: 18px; color: var(--ink-soft); }
.hero-actions{ margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-note{ margin-top: 24px; font-family: var(--mono); font-size: 12px; color: var(--ink-faint); letter-spacing: 0.02em; }

.btn{
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 13px 22px; border: 1px solid var(--line-strong); display: inline-block; text-decoration: none;
}
.btn-primary{ background: var(--ink); color: var(--paper); }
.btn-primary:hover{ background: var(--ink-soft); }
.btn-ghost{ color: var(--ink); }
.btn-ghost:hover{ border-color: var(--ink); background: var(--paper-dim); }

/* ---------- proof strip ---------- */

.proof-strip{ padding-block: 36px; background: var(--paper-dim); border-bottom: 1px solid var(--line); }
.proof-grid{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.proof-item{ background: var(--paper-panel); padding: 18px 16px; }
.proof-value{ font-family: var(--serif); font-weight: 800; text-transform: uppercase; font-size: 22px; line-height: 1; color: var(--ink); }
.proof-label{ margin-top: 8px; font-size: 12.5px; color: var(--ink-soft); line-height: 1.4; }
.proof-disclaimer{
  margin-top: 14px; text-align: center; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-faint);
}

/* ---------- problem / evidence ---------- */

.evidence-grid{ display: grid; grid-template-columns: 1fr; gap: var(--space-5); }
.evidence-copy{ max-width: 62ch; font-size: 17px; color: var(--ink-soft); }
.evidence-copy p + p{ margin-top: var(--space-3); }

.exhibit{
  position: relative; border: 1px solid var(--line-strong); background: var(--paper-panel);
  padding: 24px 22px 20px; margin-top: 30px;
}
.exhibit-tab{
  position: absolute; top: -13px; left: 20px; background: var(--ink); color: var(--paper);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 4px 10px;
}
.exhibit p{ font-family: var(--mono); font-size: 14.5px; color: var(--ink); max-width: 56ch; }
.exhibit .exhibit-meta{ margin-top: 14px; display: flex; gap: 22px; flex-wrap: wrap; font-size: 12px; color: var(--ink-faint); }

/* ---------- POV ---------- */

.pov{ background: var(--paper-dim); }
.pov-copy{ margin-top: var(--space-3); color: var(--ink-soft); font-size: 18px; max-width: 52ch; }

/* ---------- bracket eyebrow ---------- */

.tag-bracket{
  display: inline-block;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent-edge);
  padding: 6px 14px;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink);
  border-left: 1px solid transparent; border-right: 1px solid transparent;
  position: relative;
}
.tag-bracket::before, .tag-bracket::after{
  content: ""; position: absolute; top: -1px; bottom: -1px; width: 6px; border: 1px solid var(--ink);
}
.tag-bracket::before{ left: 0; border-right: none; }
.tag-bracket::after{ right: 0; border-left: none; }

/* ---------- diagnostic process (vertical rail) ---------- */

.process{ margin-top: var(--space-6); }
.process-steps{ position: relative; padding-left: 30px; }
.process-steps::before{
  content: ""; position: absolute; left: 4px; top: 8px; bottom: 8px; width: 1px; background: var(--line-strong);
}
.process-step{ position: relative; padding-block: var(--space-5); border-top: 1px solid var(--line); }
.process-step:first-child{ border-top: none; padding-top: 0; }
.process-step .node{
  position: absolute; left: -30px; top: 6px; width: 9px; height: 9px; background: var(--ink);
}
.process-step h3{ font-size: clamp(32px, 6vw, 52px); margin-top: 10px; }
.process-step h3 .step-num{ color: var(--ink-faint); font-weight: 700; }
.process-step p{ margin-top: 14px; font-size: 16px; color: var(--ink-soft); max-width: 60ch; }

/* ---------- capabilities ---------- */

.capabilities-copy{ max-width: 62ch; font-size: 16px; color: var(--ink-soft); margin-top: var(--space-3); }
.capability-list{ margin-top: var(--space-5); display: flex; flex-direction: column; }
.capability-row{
  display: grid; grid-template-columns: 220px 1fr; gap: 24px; padding-block: 22px;
  border-top: 1px solid var(--line);
}
.capability-row:first-child{ border-top: 1px solid var(--line-strong); }
.capability-row h3{ font-family: var(--serif); font-weight: 800; text-transform: uppercase; font-size: 20px; padding-top: 2px; }
.capability-row p{ font-size: 15.5px; color: var(--ink-soft); max-width: 56ch; }
.tags{ margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.tag-chip{
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ink-soft); border: 1px solid var(--line); padding: 4px 9px;
}

/* ---------- offer exhibits ---------- */

.offer .section-head p{ font-family: var(--serif); text-transform: uppercase; font-size: 20px; color: var(--ink); max-width: none; margin-top: var(--space-2); }
.offer-cards{ display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 8px; }
.offer-card{ position: relative; border: 1px solid var(--line-strong); background: var(--paper-panel); padding: 26px 22px 22px; }
.offer-card.is-flagship{ background: var(--ink); color: var(--paper); }
.offer-card.is-flagship h3, .offer-card.is-flagship .offer-price, .offer-card.is-flagship .desc, .offer-card.is-flagship li{ color: var(--paper); }
.offer-card h3{ font-size: 26px; }
.offer-price{ font-family: var(--mono); font-size: 15px; margin-top: 12px; font-variant-numeric: tabular-nums; }
.offer-price small{ color: var(--ink-faint); }
.offer-card.is-flagship .offer-price small{ color: #cfd0c2; }
.offer-card .desc{ margin-top: 14px; font-size: 14.5px; color: var(--ink-soft); }
.offer-card ul{ margin: 16px 0 0; padding-left: 18px; font-size: 14px; color: var(--ink-soft); }
.offer-card.is-flagship ul{ color: #d9dacc; }
.offer-card li + li{ margin-top: 6px; }
.offer-outputs{
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--ink-soft);
}
.offer-card.is-flagship .offer-outputs{ border-top-color: #3a3a34; color: #cfd0c2; }
.offer-outputs strong{ color: inherit; }
.offer-link{
  display: inline-block; margin-top: 18px; font-family: var(--mono); font-size: 12.5px;
  letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink); text-decoration: none;
  border-bottom: 1px solid var(--accent-edge);
}
.offer-link:hover{ color: var(--accent-edge); }
.offer-card.is-flagship .offer-link{ color: var(--paper); }
.offer-card.is-flagship .offer-link:hover{ color: var(--accent); }

/* ---------- example system ---------- */

.example-label{
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink-faint); display: block; margin-top: 18px;
}
.example-grid{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: var(--space-5); }
.example-stage{ background: var(--paper-panel); padding: 18px 16px; }
.example-stage h4{ font-family: var(--serif); font-weight: 800; text-transform: uppercase; font-size: 16px; margin: 0; }
.example-stage p{ margin-top: 8px; font-size: 13px; color: var(--ink-soft); }

/* ---------- founder / case notes ---------- */

.founder-grid{ display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
.founder-name{ font-family: var(--serif); font-weight: 800; text-transform: uppercase; font-size: 24px; margin-top: 14px; }
.founder-role{ font-family: var(--mono); font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-faint); margin-top: 4px; }
.founder-photo{
  width: 96px; height: 120px; border: 2px solid var(--ink); background: var(--paper-panel);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.founder-photo img{ width: 100%; height: 100%; object-fit: cover; filter: grayscale(1); display: block; }
.founder-mark{
  font-family: var(--serif); font-weight: 800; font-size: 32px; text-transform: uppercase; color: var(--ink);
}
.founder-linkedin{
  display: inline-block; font-family: var(--mono); font-size: 12.5px;
  letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink); text-decoration: none;
  border-bottom: 1px solid var(--accent-edge);
}
.founder-linkedin:hover{ color: var(--accent-edge); }
.founder-timeline{
  margin-top: var(--space-5); padding-block: 14px; border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong); font-family: var(--mono); font-size: 13px;
  letter-spacing: 0.05em; color: var(--ink); font-weight: 600;
}
.founder-stories{ display: flex; flex-direction: column; margin-top: var(--space-2); }
.story{ display: grid; grid-template-columns: 110px 1fr; gap: 18px; padding-block: 18px; border-top: 1px solid var(--line); }
.story:first-child{ border-top: none; }
.story .tag{ align-self: start; padding-top: 2px; }
.story p{ font-size: 15.5px; color: var(--ink-soft); max-width: 62ch; }
.founder-footer{
  margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--line-strong);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.founder-disclaimer{
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--ink-faint);
}

/* ---------- final cta / form ---------- */

.cta-final{ text-align: left; border-bottom: none; }
.cta-final h2{ font-size: clamp(30px, 5vw, 48px); }
.scope-note{ margin-top: 14px; font-family: var(--mono); font-size: 12.5px; color: var(--ink-faint); max-width: 58ch; }

.teardown-form{ margin-top: var(--space-5); max-width: 560px; display: flex; flex-direction: column; gap: 18px; }
.form-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row{ display: flex; flex-direction: column; gap: 6px; }
.form-row label{
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft);
}
.form-row input, .form-row select, .form-row textarea{
  font-family: var(--sans); font-size: 15px; color: var(--ink); background: var(--paper);
  border: 1px solid var(--line-strong); padding: 11px 12px; border-radius: 0;
}
.form-row textarea{ resize: vertical; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{
  outline: 2px solid var(--accent-edge); outline-offset: 1px;
}
.teardown-form .btn{ align-self: flex-start; border: 1px solid var(--line-strong); cursor: pointer; }
.teardown-form .btn:disabled{ opacity: 0.6; cursor: default; }
.form-note{ font-family: var(--mono); font-size: 11.5px; color: var(--ink-faint); }
.form-error{ font-size: 14px; color: var(--ink); }
.form-error a{ border-bottom: 1px solid var(--accent-edge); text-decoration: none; }
.form-success{
  margin-top: var(--space-5); max-width: 560px; border: 1px solid var(--line-strong);
  background: var(--paper-panel); padding: 22px 24px; font-size: 16px; color: var(--ink-soft);
}
.form-success p + p{ margin-top: 10px; }
.form-success strong{ color: var(--ink); }

footer{ padding-block: 24px; }
.foot-row{ display: flex; justify-content: space-between; font-family: var(--mono); font-size: 12px; color: var(--ink-faint); flex-wrap: wrap; gap: 8px; }
footer a{ text-decoration: none; }
footer a:hover{ color: var(--ink); }

/* ---------- reveal ---------- */

.reveal{ opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible{ opacity: 1; transform: none; }

/* ---------- responsive ---------- */

@media (max-width: 900px){
  .capability-row{ grid-template-columns: 1fr; gap: 10px; }
  .example-grid{ grid-template-columns: repeat(2, 1fr); }
  .proof-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px){
  .nav-toggle{ display: flex; }
  .nav-links{
    position: absolute; top: 100%; left: 0; right: 0; background: var(--paper);
    flex-direction: column; gap: 0; border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .25s ease;
  }
  .nav-links.is-open{ max-height: 400px; }
  .nav-links li{ border-top: 1px solid var(--line); }
  .nav-links a{ display: block; padding: 14px 20px; border-bottom: none; }
  .nav-cta{ display: none; }
  .nav-cta-mobile{ display: block; }
  .nav-cta-mobile a{ font-family: var(--mono); color: var(--accent-edge); font-weight: 600; }
}

@media (max-width: 640px){
  .offer-cards{ grid-template-columns: 1fr; }
  .story{ grid-template-columns: 1fr; }
  .example-grid{ grid-template-columns: 1fr; }
}