/* ===========================================================
   GTO Advisory Partners — styles.css
   Direction: bold editorial · credibility-first
   Type: Archivo (display/UI) · Fraunces (editorial accent) · Inter (body)
   Palette: cool charcoal ink · warm bone · signal red · steel
   =========================================================== */

:root {
  --ink:        #131619;
  --ink-2:      #1B2024;
  --steel:      #1E3A4C;
  --steel-2:    #25435B;
  --bone:       #F4F1EA;
  --paper:      #FBFAF6;
  --red:        #DA291C;
  --red-600:    #B81F14;

  --fg:         #16191C;
  --muted:      #565C62;
  --muted-2:    #7A8085;
  --line:       #E4E0D7;
  --line-2:     #D2CDC1;

  --brass:      #B0894E;
  --brass-2:    #946F3A;
  --brass-soft: #C9A36A;

  --on-dark:    #F4F1EA;
  --on-dark-mut:#A7B0B6;

  --radius:     4px;
  --maxw:       1200px;
  --ease:       cubic-bezier(.2,.7,.25,1);

  /* Heritage blueprint grid line tints */
  --grid-ink:   rgba(244,241,234,.045);
  --grid-paper: rgba(19,22,25,.04);

  --f-display: 'Archivo', system-ui, sans-serif;
  --f-serif:   'Fraunces', Georgia, serif;
  --f-mono:    'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --f-body:    'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--f-body); color: var(--fg);
  background: var(--paper); line-height: 1.6; font-size: 17px;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 { margin: 0; font-family: var(--f-display); font-weight: 800; line-height: 1.04; letter-spacing: -.02em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px, 3.5vw, 44px); }
.section { padding: clamp(64px, 9vw, 128px) 0; }

/* ---------- Kickers / headings ---------- */
.kicker {
  font-family: var(--f-display); text-transform: uppercase; letter-spacing: .26em;
  font-size: .75rem; font-weight: 700; color: var(--red); margin: 0 0 18px;
  display: inline-flex; align-items: center; gap: 2px; flex-wrap: wrap;
}
.kicker-light { color: #FF6A5C; }
.kicker i { display: inline-block; width: 5px; height: 5px; background: currentColor; transform: rotate(45deg); margin: 0 8px; }

.section-head { max-width: 820px; margin: 0 0 clamp(40px, 5vw, 64px); }
.section-head h2 { font-size: clamp(2rem, 5vw, 3.6rem); }
.section-head .section-lede { margin: 20px 0 0; font-size: 1.15rem; color: var(--muted); max-width: 620px; }
.section-dark .section-head .section-lede { color: var(--on-dark-mut); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--f-display); font-weight: 700; font-size: .92rem; letter-spacing: .02em;
  text-transform: uppercase; padding: 14px 26px; border-radius: var(--radius);
  border: 2px solid transparent; cursor: pointer;
  transition: transform .18s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.btn-lg { padding: 17px 34px; font-size: .98rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-600); transform: translateY(-2px); }
.btn-line { background: transparent; color: var(--fg); border-color: var(--line-2); }
.btn-line:hover { border-color: var(--ink); transform: translateY(-2px); }
.hero .btn-line { color: var(--on-dark); border-color: rgba(244,241,234,.4); }
.hero .btn-line:hover { background: var(--on-dark); color: var(--ink); border-color: var(--on-dark); }

/* ---------- Skip link ---------- */
.skip-link { position: absolute; left: -999px; top: 0; z-index: 200; background: var(--ink); color: #fff; padding: 10px 16px; }
.skip-link:focus { left: 0; }

/* ---------- Brand wordmark ---------- */
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  font-family: var(--f-display); font-weight: 900; font-size: 1.7rem; letter-spacing: -.03em;
  color: var(--ink); line-height: 1;
}
.brand-mark::after { content: "."; color: var(--red); }
.brand-sub {
  font-family: var(--f-display); font-weight: 700; text-transform: uppercase;
  font-size: .56rem; letter-spacing: .18em; line-height: 1.15; color: var(--muted);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251,250,246,.82); backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid transparent; transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.site-header.scrolled { border-bottom-color: var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.nav { display: flex; align-items: center; gap: 32px; }
.nav a:not(.btn) {
  font-family: var(--f-display); font-weight: 600; font-size: .9rem; text-transform: uppercase;
  letter-spacing: .04em; color: var(--fg); position: relative; padding: 4px 0;
}
.nav a:not(.btn)::after { content: ""; position: absolute; left: 0; bottom: -4px; height: 2px; width: 0; background: var(--red); transition: width .25s var(--ease); }
.nav a:not(.btn):hover::after { width: 100%; }
.nav-cta { color: #fff !important; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 10px; cursor: pointer; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); transition: transform .25s var(--ease), opacity .25s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: var(--on-dark);
  background: radial-gradient(1200px 700px at 85% -20%, #21323c 0%, transparent 55%), var(--ink);
  padding: clamp(56px, 8vw, 104px) 0 clamp(52px, 6.5vw, 88px);
}
.hero-arcs { position: absolute; inset: 0; color: rgba(218,41,28,.16); pointer-events: none; }
.hero-arcs svg { width: 100%; height: 100%; }
.hero-inner { position: relative; max-width: 880px; }
.kicker-hero { color: #E9C8C4; font-size: .82rem; letter-spacing: .22em; }
.hero h1 {
  font-size: clamp(2.2rem, 5.6vw, 4.4rem); font-weight: 900; letter-spacing: -.03em; line-height: 1;
  text-wrap: pretty; overflow-wrap: break-word;
}
.hero h1 .accent { color: var(--on-dark-mut); }
.hero-sub { font-size: clamp(1.05rem, 1.4vw, 1.22rem); color: var(--on-dark-mut); max-width: 560px; margin: 22px 0 34px; line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-pedigree {
  margin: 40px 0 0; font-family: var(--f-display); font-weight: 600; text-transform: uppercase;
  letter-spacing: .08em; font-size: .82rem; color: #8C969C;
}
.hero-pedigree span { color: #5E696F; margin-right: 6px; }

/* ---------- Proof / stats ---------- */
.proof { background: var(--ink); color: var(--on-dark); padding-bottom: clamp(48px, 7vw, 88px); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(244,241,234,.14); }
.proof-item { display: flex; flex-direction: column; align-items: center; text-align: center; padding: clamp(32px,4vw,52px) clamp(20px,2.4vw,36px); border-right: 1px solid rgba(244,241,234,.14); }
.proof-item:last-child { border-right: 0; }
.proof-num { display: block; font-family: var(--f-display); font-weight: 900; font-size: clamp(2.8rem, 5.5vw, 4.6rem); line-height: .9; letter-spacing: -.04em; color: #fff; }
.proof-num i { color: var(--red); font-style: normal; }
.proof-label { display: block; margin-top: 16px; font-size: .95rem; color: var(--on-dark-mut); max-width: 230px; }

/* ---------- Marquee ---------- */
.marquee { margin-top: clamp(40px,6vw,72px); }
.marquee-cap {
  font-family: var(--f-display); text-transform: uppercase; letter-spacing: .14em; font-size: .78rem;
  color: #6E787E; text-align: center; margin: 0 0 26px;
}
.marquee-track { display: flex; gap: 0; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee-track ul { display: flex; flex: 0 0 auto; align-items: center; animation: scrollx 42s linear infinite; }
.marquee-reverse ul { animation-direction: reverse; animation-duration: 52s; }
.marquee-track:hover ul { animation-play-state: paused; }
.marquee-track li {
  flex: 0 0 auto; font-family: var(--f-display); font-weight: 700; text-transform: uppercase;
  letter-spacing: .04em; font-size: 1.1rem; color: #C9D1D6; padding: 14px 26px; white-space: nowrap;
  border-right: 1px solid rgba(244,241,234,.1);
}
.marquee-reverse li { font-size: .98rem; color: #8C969C; }
@keyframes scrollx { from { transform: translateX(0); } to { transform: translateX(-100%); } }

/* ---------- Challenge ---------- */
.challenge { background: var(--bone); }
.pull {
  font-family: var(--f-serif); font-style: italic; font-weight: 400;
  font-size: clamp(1.7rem, 4.2vw, 3.2rem); line-height: 1.15; letter-spacing: -.01em;
  margin: 0 0 clamp(40px,5vw,64px); max-width: 16ch; color: var(--ink);
}
.pull em { font-style: italic; color: var(--red); }
.challenge-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 2px solid var(--ink); }
.challenge-card { padding: 28px clamp(18px,2vw,28px) 0; border-right: 1px solid var(--line-2); text-align: center; }
.challenge-card:last-child { border-right: 0; }
.challenge-card h3 { font-size: 1.2rem; color: var(--ink); margin-bottom: 10px; }
.challenge-card p { margin: 0 auto; color: var(--muted); font-size: .96rem; max-width: 26ch; }

/* ---------- Services (dark) ---------- */
.section-dark { background: var(--ink); color: var(--on-dark); }
.section-dark .section-head h2 { color: #fff; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid rgba(244,241,234,.16); }
.pillar { padding: 40px clamp(24px,3vw,44px) 8px; border-right: 1px solid rgba(244,241,234,.14); text-align: center; }
.pillar:last-child { border-right: 0; }
.pillar-head { margin-bottom: 30px; }
.pillar-tag {
  display: inline-block; font-family: var(--f-display); font-weight: 800; text-transform: uppercase;
  letter-spacing: .04em; font-size: 1.25rem; color: #fff; padding-bottom: 8px; border-bottom: 3px solid var(--red);
}
.pillar-desc { margin: 16px 0 0; color: var(--on-dark-mut); font-size: .98rem; }
.pillar-list li { padding: 22px 0; border-top: 1px solid rgba(244,241,234,.1); }
.pillar-list li:first-child { border-top: 0; }
.pillar-list h3 { font-size: 1.18rem; color: #fff; margin-bottom: 6px; letter-spacing: -.01em; }
.pillar-list p { margin: 0; color: var(--on-dark-mut); font-size: .94rem; }

/* ---------- Approach ---------- */
.approach { background: var(--paper); }
.approach-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(40px,6vw,88px); align-items: start; }
.approach-intro h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); margin: 16px 0 18px; }
.approach-intro p { color: var(--muted); margin: 0; font-size: 1.05rem; }
.approach-list { display: grid; gap: 0; }
.approach-list li { display: flex; gap: 24px; padding: 26px 0; border-top: 1px solid var(--line); }
.approach-list li:first-child { border-top: 0; padding-top: 0; }
.approach-list span { font-family: var(--f-display); font-weight: 800; font-size: 1.1rem; color: var(--red); flex: 0 0 auto; padding-top: 2px; }
.approach-list h3 { font-size: 1.22rem; color: var(--ink); margin-bottom: 6px; }
.approach-list p { margin: 0; color: var(--muted); font-size: .98rem; }

/* ---------- Team ---------- */
.section-bone { background: var(--bone); }
.team-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-2); border: 1px solid var(--line-2); }
.team-card { background: var(--bone); padding: clamp(28px,3.5vw,44px); transition: background .25s var(--ease); }
.team-card:hover { background: var(--paper); }
.team-head { display: flex; align-items: center; gap: 18px; margin-bottom: 20px; }
.avatar {
  flex: 0 0 auto; width: 60px; height: 60px; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--f-display); font-weight: 800; font-size: 1.25rem; letter-spacing: .02em; color: #fff;
  background: var(--ink);
}
.team-card:nth-child(odd) .avatar { background: var(--steel-2); }
.team-card h3 { font-size: 1.5rem; color: var(--ink); }
.team-card .role { margin: 4px 0 0; font-family: var(--f-display); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; font-size: .76rem; color: var(--red); }
.team-card .bio { color: var(--fg); margin: 0 0 16px; font-size: 1rem; }
.team-card .pedigree { margin: 0; padding-top: 16px; border-top: 1px solid var(--line-2); font-size: .84rem; color: var(--muted-2); font-family: var(--f-display); font-weight: 500; letter-spacing: .01em; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--red); color: #fff; }
.cta-inner { padding: clamp(48px,7vw,88px) 0; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-inner h2 { font-size: clamp(1.8rem, 4vw, 3rem); color: #fff; max-width: 16ch; }
.cta-band .btn-primary { background: var(--ink); color: #fff; }
.cta-band .btn-primary:hover { background: #000; }

/* ---------- Contact ---------- */
.contact { background: var(--paper); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(40px,5vw,72px); align-items: start; }
.contact-info h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); margin: 14px 0 18px; }
.contact-list { margin-top: 32px; display: grid; gap: 24px; }
.contact-list li { display: grid; grid-template-columns: 140px 1fr; gap: 18px; padding-top: 24px; border-top: 1px solid var(--line); }
.contact-list li:first-child { border-top: 0; padding-top: 0; }
.ci-label { font-family: var(--f-display); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; font-size: .76rem; color: var(--muted-2); padding-top: 3px; }
.contact-list a:hover { color: var(--red); }

.contact-form-wrap { background: var(--bone); border: 1px solid var(--line-2); border-radius: var(--radius); padding: clamp(26px,3vw,40px); }
.field { margin-bottom: 18px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { display: block; font-family: var(--f-display); font-weight: 700; font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 8px; color: var(--ink); }
.req { color: var(--red); }
.field input, .field textarea {
  width: 100%; font-family: inherit; font-size: 1rem; color: var(--fg);
  padding: 13px 15px; border: 1.5px solid var(--line-2); border-radius: var(--radius); background: var(--paper);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--steel-2); box-shadow: 0 0 0 3px rgba(37,67,91,.14); }
.field textarea { resize: vertical; min-height: 120px; }
.field.invalid input, .field.invalid textarea { border-color: var(--red); }
.field-error { color: var(--red); font-size: .82rem; margin: 6px 0 0; }
.hp-field { display: none; }
.form-status { margin: 14px 0 0; font-size: .95rem; font-weight: 500; }
.form-status.ok { color: #157347; }
.form-status.err { color: var(--red); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--on-dark-mut); padding: clamp(48px,6vw,76px) 0 28px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 40px; }
.brand-footer .brand-mark { color: #fff; }
.brand-footer .brand-sub { color: var(--on-dark-mut); }
.footer-strap { font-family: var(--f-display); font-weight: 600; text-transform: uppercase; letter-spacing: .14em; font-size: .8rem; color: #C9D1D6; margin: 18px 0 0; display: flex; align-items: center; }
.footer-strap i { width: 5px; height: 5px; background: var(--red); transform: rotate(45deg); margin: 0 8px; display: inline-block; }
.footer-nav { display: flex; flex-direction: column; gap: 12px; }
.footer-nav a { font-family: var(--f-display); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; font-size: .85rem; }
.footer-nav a:hover { color: #fff; }
.footer-contact p { margin: 0 0 12px; font-size: .92rem; }
.footer-contact a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(244,241,234,.1); font-size: .82rem; color: #6E787E; }
.footer-bottom p { margin: 0; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in-view { opacity: 1; transform: none; }

/* ===========================================================
   HERITAGE LAYER — Detroit industrial / blueprint detailing
   Mono spec labels · engraved brass rules · registration ticks
   =========================================================== */

/* ---------- Masthead strip ---------- */
.utility-bar { background: var(--ink-2); border-bottom: 1px solid rgba(244,241,234,.08); }
.utility-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  height: 34px; font-family: var(--f-mono); font-size: .68rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: .16em; color: #8A949A; white-space: nowrap; overflow: hidden;
}
.utility-inner .ub-item { display: inline-flex; align-items: center; }
.ub-loc { color: var(--brass-soft); }
.ub-mid { color: #71797F; }
.ub-disc { color: #8A949A; }
.ub-pin {
  width: 6px; height: 6px; margin-right: 9px; border-radius: 50%;
  border: 1.5px solid var(--brass); display: inline-block;
}

/* ---------- Hero blueprint grid + chart coordinates ---------- */
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-ink) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 100% at 80% 0%, #000 30%, transparent 80%);
  mask-image: radial-gradient(120% 100% at 80% 0%, #000 30%, transparent 80%);
}
/* ---------- Proof: spec labels + machined numerals ---------- */
.proof-item { position: relative; }
.proof-fig {
  display: block; margin-bottom: 14px; font-family: var(--f-mono); font-weight: 500;
  font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: var(--brass-soft);
}
.proof-fig::before { content: "▸ "; color: var(--red); }
.proof-num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }

/* ---------- Engraved brass rule above section heads ---------- */
.section-head { position: relative; padding-top: 30px; }
.section-head::before {
  content: ""; position: absolute; top: 0; left: 0; width: 200px; height: 1px;
  background: linear-gradient(90deg, var(--brass) 0 46px, var(--line-2) 46px);
}
.section-dark .section-head::before {
  background: linear-gradient(90deg, var(--brass) 0 46px, rgba(244,241,234,.18) 46px);
}
.section-head::after {
  content: ""; position: absolute; top: -3px; left: 0; width: 7px; height: 7px;
  background: var(--brass); transform: rotate(45deg);
}

/* ---------- Blueprint grid on the bone "challenge" band ---------- */
.challenge { position: relative; overflow: hidden; }
.challenge::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-paper) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-paper) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(130% 90% at 100% 0%, #000 20%, transparent 75%);
  mask-image: radial-gradient(130% 90% at 100% 0%, #000 20%, transparent 75%);
}
.challenge-inner { position: relative; z-index: 1; }
.challenge-grid { border-top-color: var(--brass); }

/* ---------- Registration corner ticks (team cards) ---------- */
.team-card { position: relative; }
.team-card::before {
  content: ""; position: absolute; top: 14px; left: 14px; width: 9px; height: 9px;
  border-top: 1.5px solid var(--brass); border-left: 1.5px solid var(--brass);
  opacity: .55; pointer-events: none;
}
.team-card::after {
  content: ""; position: absolute; bottom: 14px; right: 14px; width: 9px; height: 9px;
  border-bottom: 1.5px solid var(--brass); border-right: 1.5px solid var(--brass);
  opacity: .55; pointer-events: none;
}

/* brass tag underline accent on pillars */
.pillar-tag { border-bottom-color: var(--brass); }
.pillar-tag::after { content: " "; }

/* mono treatment for the marquee caption (ledger feel) */
.marquee-cap { font-family: var(--f-mono); font-weight: 400; letter-spacing: .12em; }

/* serif lift + brass divider already present on pull-quote */
.pull { position: relative; padding-top: 26px; }
.pull::before { content: ""; position: absolute; top: 0; left: 0; width: 64px; height: 2px; background: var(--brass); }

/* ---------- Footer heritage stamp + seal ---------- */
.footer-stamp { display: flex; align-items: center; gap: 18px; margin-top: 44px; }
.footer-stamp .fs-rule { flex: 1; height: 1px; background: rgba(244,241,234,.12); }
.footer-stamp .fs-text {
  font-family: var(--f-mono); font-size: .7rem; font-weight: 400; letter-spacing: .18em;
  text-transform: uppercase; color: var(--brass-soft); white-space: nowrap;
}
.footer-bottom { margin-top: 26px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-item:nth-child(2) { border-right: 0; }
  .proof-item:nth-child(1), .proof-item:nth-child(2) { border-bottom: 1px solid rgba(244,241,234,.14); }
  .challenge-grid { grid-template-columns: repeat(2, 1fr); }
  .challenge-card:nth-child(2) { border-right: 0; }
  .challenge-card:nth-child(3), .challenge-card:nth-child(4) { padding-top: 28px; border-top: 1px solid var(--line-2); }
  .pillars { grid-template-columns: 1fr; }
  .pillar { border-right: 0; border-bottom: 1px solid rgba(244,241,234,.14); padding: 32px 0 8px; }
  .pillar:last-child { border-bottom: 0; }
  .approach-grid { grid-template-columns: 1fr; gap: 36px; }
  .team-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  .nav {
    position: fixed; inset: 78px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 28px 22px;
    transform: translateY(-130%); transition: transform .3s var(--ease); z-index: 90; box-shadow: 0 20px 40px -20px rgba(0,0,0,.3);
  }
  .nav.open { transform: translateY(0); }
  .nav a:not(.btn) { padding: 15px 0; border-bottom: 1px solid var(--line); }
  .nav a:not(.btn)::after { display: none; }
  .nav-cta { margin-top: 14px; text-align: center; }
  .nav-toggle { display: flex; }
  .utility-inner { justify-content: center; }
  .utility-inner .ub-disc { display: none; }
  .footer-stamp .fs-text { white-space: normal; text-align: center; }
}

@media (max-width: 560px) {
  .proof-grid, .challenge-grid { grid-template-columns: 1fr; }
  .proof-item { border-right: 0 !important; border-bottom: 1px solid rgba(244,241,234,.14); padding: 28px 0; }
  .proof-item:last-child { border-bottom: 0; }
  .challenge-card { border-right: 0 !important; padding: 24px 0 0 !important; border-top: 1px solid var(--line-2); }
  .field-row { grid-template-columns: 1fr; }
  .contact-list li { grid-template-columns: 1fr; gap: 4px; }
  .footer-inner { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1 1 100%; }
  .utility-inner .ub-mid { display: none; }
  .utility-inner { justify-content: flex-start; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .marquee-track { overflow-x: auto; }
  .marquee-track ul[aria-hidden="true"] { display: none; }
}