/* Tulse AI · Direction B, PRESS
   Soot and bone, one ochre. Flat ink on flat stock. */

:root {
  --pitch: #0E0D09;
  --soot: #16150F;
  --iron: #33312A;
  --ochre: #C9922F;
  --ochre-deep: #9A6D18;
  --bone: #EDE9DF;
  --bone-shade: #E4DDCE;
  --text-muted: #A19A88;
  --text-faint: #8C8676;
  --ink-on-bone: #403D33;
  --border-secondary: #6A6558;

  --font-display: "Archivo", "Arial Narrow", sans-serif;
  --font-body: "Work Sans", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --shell-width: 1120px;
  --shell-pad: 38px;
  --band-pad: 74px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-muted);
  background: var(--pitch);
}

img { max-width: 100%; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; }

a { color: inherit; }

.shell {
  max-width: var(--shell-width);
  margin: 0 auto;
  padding-left: var(--shell-pad);
  padding-right: var(--shell-pad);
}

/* Bands: full-bleed flat colour, butted together, no gap */
.band { padding-top: var(--band-pad); padding-bottom: var(--band-pad); }
.band-pitch { background: var(--pitch); }
.band-soot { background: var(--soot); }
.band-bone { background: var(--bone); color: var(--ink-on-bone); }
.band-bone-shade { background: var(--bone-shade); color: var(--ink-on-bone); }
.band-ochre { background: var(--ochre); color: var(--soot); }

/* Labels */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ochre);
  margin-bottom: 26px;
}
.eyebrow-on-bone { color: var(--ochre-deep); }
.eyebrow-on-ochre { color: var(--soot); }

/* Wordmark: TulseAI set solid, AI in ochre */
.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 23px;
  letter-spacing: -0.045em;
  color: var(--bone);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark-ai { color: var(--ochre); }
.wordmark-small { font-size: 18px; letter-spacing: -0.03em; }

/* Header */
.site-header {
  background: var(--pitch);
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 26px var(--shell-pad);
}
/* Not a flex container, so .btn keeps its specified computed display: inline-flex */
.site-nav { display: block; white-space: nowrap; }
.site-nav > * { vertical-align: middle; margin-left: 32px; }
.site-nav > *:first-child { margin-left: 0; }
.site-nav a:not(.btn) {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
}
.site-nav a:not(.btn):hover { color: var(--bone); }

/* Buttons: hard edges, no radius */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 15px 28px;
  border-radius: 0;
  vertical-align: top;
}
.btn-primary { background: var(--ochre); color: var(--soot); }
.btn-primary:hover { background: var(--ochre-deep); }
.btn-secondary { border: 1px solid var(--border-secondary); color: var(--bone); }
.btn-secondary:hover { border-color: var(--bone); }
.btn-on-ochre { background: var(--soot); color: var(--bone); }
.btn-on-ochre:hover { background: var(--pitch); }
.btn-row { display: block; margin-bottom: -10px; }
.btn-row .btn { margin: 0 14px 10px 0; }

/* Hero */
.hero { padding-top: 24px; padding-bottom: 96px; }
.hero-eyebrow { margin-bottom: 10px; }
.hero-headline {
  font-size: clamp(40px, 6vw, 86px);
  line-height: 0.94;
  letter-spacing: -0.05em;
  text-transform: uppercase;
  color: var(--bone);
  margin-bottom: 28px;
}
.accent { color: var(--ochre); }
.hero-para { max-width: 48ch; margin-bottom: 36px; }

/* Figure strip: four cells, 1px iron gap */
.figure-strip-band { padding-top: 56px; padding-bottom: 56px; }
.figure-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--iron);
  border-top: 1px solid var(--iron);
  border-bottom: 1px solid var(--iron);
}
.figure-cell {
  background: var(--soot);
  padding: 26px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.figure {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 46px;
  line-height: 0.98;
  letter-spacing: -0.045em;
  text-transform: uppercase;
  color: var(--bone);
  font-variant-numeric: tabular-nums;
}
.figure-caption {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
}

/* Section headlines */
.section-headline {
  font-size: clamp(34px, 4.8vw, 54px);
  line-height: 0.96;
  letter-spacing: -0.045em;
  text-transform: uppercase;
  color: var(--soot);
}
.section-headline.on-dark { color: var(--bone); }
.section-headline.on-ochre { color: var(--soot); }

/* Services */
.services-opener { padding-bottom: 56px; }

.numbered-row {
  display: grid;
  grid-template-columns: 88px 1fr 1.2fr;
  gap: 32px;
  align-items: end;
}
.row-numeral {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 86px;
  line-height: 0.92;
  letter-spacing: -0.05em;
  color: var(--ochre-deep);
}
.row-title {
  font-size: 28px;
  line-height: 0.98;
  letter-spacing: -0.045em;
  text-transform: uppercase;
  color: var(--soot);
}
.row-body p { max-width: 48ch; }
.row-figure {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ochre-deep);
  margin-top: 20px;
}
.services-closing {
  max-width: 48ch;
  margin-top: 56px;
  padding-top: 26px;
  border-top: 1px solid var(--iron);
  color: var(--ink-on-bone);
  font-weight: 500;
}

/* How it works */
.steps-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--iron);
  border-top: 1px solid var(--iron);
  border-bottom: 1px solid var(--iron);
}
.step-cell {
  background: var(--soot);
  padding: 26px 20px 32px;
}
.step-numeral {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--ochre);
  display: block;
  margin-bottom: 20px;
}
.step-title {
  font-size: 23px;
  line-height: 0.98;
  letter-spacing: -0.045em;
  text-transform: uppercase;
  color: var(--bone);
  margin-bottom: 14px;
  min-height: 2em;
}
.step-cell p { font-size: 16px; }

/* Who I am */
.who-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 72px;
  align-items: start;
}
.who-body p { max-width: 48ch; }
.who-body p + p { margin-top: 20px; }
.who-facts {
  border-top: 1px solid var(--iron);
  font-size: 16px;
  color: var(--ink-on-bone);
}
.who-facts p {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--iron);
}
.fact-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ochre-deep);
  align-self: center;
}

/* Contact */
.contact-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 72px;
  align-items: start;
}
.contact-body p { max-width: 48ch; color: var(--soot); }
.contact-body p + p { margin-top: 20px; }
.contact-body .btn-row { margin-top: 40px; }
.contact-fallback { margin-top: 20px; font-size: 15px; }
.contact-fallback a { color: var(--soot); }
.contact-address {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  line-height: 2.2;
  color: var(--soot);
  border-top: 2px solid var(--soot);
  padding-top: 20px;
}
.contact-address a { color: var(--soot); text-decoration: none; }
.contact-address a:hover { text-decoration: underline; }

/* Footer */
.site-footer { padding-top: 40px; padding-bottom: 40px; }
.footer-grid {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 26px;
  flex-wrap: wrap;
}
.footer-note, .footer-legal {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
}

/* Responsive */
@media (max-width: 900px) {
  :root { --shell-pad: 24px; --band-pad: 56px; }
  .figure-strip, .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .who-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .numbered-row { grid-template-columns: 56px 1fr; }
  .numbered-row .row-numeral { font-size: 54px; grid-row: span 2; }
  .numbered-row .row-body { grid-column: 2; }
  .row-title { margin-bottom: 14px; }
  .step-title { min-height: 0; }
}

@media (max-width: 640px) {
  .hero-headline br { display: none; }
  .hero-headline { font-size: clamp(38px, 11.5vw, 54px); }
  .site-header { flex-direction: column; gap: 20px; }
  .site-nav { white-space: normal; text-align: center; }
  .site-nav > * { margin: 0 10px; }
  .figure-strip, .steps-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 64px; padding-bottom: 64px; }
}