:root {
  --nav-back-size: .72rem;
  --nav-bg: rgba(250,248,251,0.9);
  --accent-light: #d635ef;
  --accent-dim: rgba(177,4,200,0.10);
  --surface: #f3f0f6;
  /* City of Dearborn accent — civic blue */
  --blue: #0052CC;
  --blue-dim: rgba(0,82,204,0.08);
  --serif: 'Playfair Display', Georgia, serif;
}
body { background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.6; overflow-x: hidden; }

/* ── Nav ── */

.nav-back:hover svg { transform:translateX(-3px); }

/* ── Hero ── */
.hero {
  min-height:100vh;
  display:grid;grid-template-columns:1fr 1fr;align-items:center;
  padding:9rem 4rem 5rem;
  position:relative;overflow:hidden;
  background:var(--paper);
  gap:4rem;
}
.hero-grid {
  position:absolute;inset:0;
  background-image:linear-gradient(var(--rule) 1px,transparent 1px),linear-gradient(90deg,var(--rule) 1px,transparent 1px);
  background-size:60px 60px;opacity:.5;pointer-events:none;
}
/* Civic blue orb instead of purple — distinct from other case studies */
.hero-orb {
  position:absolute;width:600px;height:600px;
  background:radial-gradient(circle,rgba(0,82,204,.07) 0%,transparent 65%);
  top:50%;right:-80px;transform:translateY(-50%);pointer-events:none;
}
.hero-orb-2 {
  position:absolute;width:400px;height:400px;
  background:radial-gradient(circle,rgba(177,4,200,.06) 0%,transparent 65%);
  bottom:-80px;left:-60px;pointer-events:none;
}

.hero-content { position:relative;z-index:2;max-width:560px; }
.hero-eyebrow { font-family:var(--mono);font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:1.25rem;display:flex;align-items:center;gap:.75rem;opacity:0;animation:fadeUp .8s ease .1s forwards; }
.hero-eyebrow::before { content:'';width:28px;height:1px;background:var(--accent);display:block; }
.hero-title { font-family:var(--serif);font-size:clamp(3rem,5vw,5.5rem);font-weight:900;line-height:.95;letter-spacing:-.04em;margin-bottom:.75rem;opacity:0;animation:fadeUp .8s ease .25s forwards; }
.hero-title em { font-style:italic;color:var(--accent); }
.hero-tagline { font-family:var(--serif);font-style:italic;font-size:1.1rem;color:var(--muted);line-height:1.6;max-width:460px;margin-bottom:2rem;opacity:0;animation:fadeUp .8s ease .4s forwards; }
.meta-row { display:flex;gap:2rem;flex-wrap:wrap;margin-bottom:2.5rem;opacity:0;animation:fadeUp .8s ease .55s forwards; }
.meta-item { display:flex;flex-direction:column;gap:.2rem; }
.meta-label { font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted); }
.meta-value { font-size:.875rem;font-weight:500;color:var(--ink); }
.hero-actions { display:flex;align-items:center;gap:1.5rem;opacity:0;animation:fadeUp .8s ease .7s forwards; }
.btn-primary { display:inline-flex;align-items:center;gap:.6rem;background:var(--accent);color:white;padding:.85rem 1.8rem;border-radius:6px;text-decoration:none;font-size:.875rem;font-weight:500;box-shadow:0 4px 20px rgba(177,4,200,.28);transition:background .2s,transform .2s,box-shadow .2s; }
.btn-primary:hover { background:var(--accent-light);transform:translateY(-2px);box-shadow:0 8px 28px rgba(177,4,200,.38); }
.btn-ghost { font-size:.875rem;font-weight:500;color:var(--muted);text-decoration:none;border-bottom:1px solid var(--rule);padding-bottom:2px;transition:color .2s,border-color .2s; }
.btn-ghost:hover { color:var(--accent);border-color:var(--accent); }

/* Hero right — phone mockup trio */
.hero-visual { position:relative;z-index:2;display:flex;align-items:center;justify-content:center;opacity:0;animation:fadeIn 1.2s ease .6s forwards; }
.phone-trio { position:relative;display:flex;align-items:flex-end;gap:-20px; }
.phone-wrap { position:relative; }
.phone-wrap.center { z-index:3;transform:translateY(-20px); }
.phone-wrap.left   { z-index:2;transform:translateX(30px) scale(.88);opacity:.8; }
.phone-wrap.right  { z-index:2;transform:translateX(-30px) scale(.88);opacity:.8; }
.phone-img { width:160px;border-radius:24px;box-shadow:0 24px 60px rgba(14,11,18,.18);display:block; }
.phone-wrap.center .phone-img { width:185px;box-shadow:0 32px 72px rgba(14,11,18,.22); }

/* ── Stats strip ── */
.stats-strip { background:var(--ink);display:grid;grid-template-columns:repeat(4,1fr); }
.stat-cell { padding:3rem 2.5rem;border-right:1px solid rgba(255,255,255,.07);transition:background .3s; }
.stat-cell:hover { background:rgba(177,4,200,.06); }
.stat-cell:last-child { border-right:none; }
.stat-n { font-family:var(--serif);font-size:2.4rem;font-weight:900;color:white;line-height:1;letter-spacing:-.03em; }
.stat-n em { font-style:normal;color:var(--accent); }
.stat-lbl { font-family:var(--mono);font-size:.63rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.35);margin-top:.4rem; }

/* ── Process nav ── */
.process-nav { background:var(--surface);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:0 4rem;display:flex;overflow-x:auto;position:sticky;top:73px;z-index:90; }
nav.scrolled ~ .process-nav,
.process-nav.nav-scrolled { top:61px; }
.pnav-item { font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;padding:1.25rem 2rem;color:var(--muted);text-decoration:none;white-space:nowrap;border-bottom:2px solid transparent;transition:color .2s,border-color .2s; }
.pnav-item:hover { color:var(--accent);border-bottom-color:var(--accent); }

/* ── Shared section ── */
.section { padding:6rem 4rem; }
.section-wide { max-width:1160px;margin:0 auto; }
.two-col { display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;align-items:start; }
.eyebrow { font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:1rem;display:flex;align-items:center;gap:.6rem; }
.eyebrow::before { content:'';width:24px;height:1px;background:var(--accent);display:block; }
.section-headline { font-family:var(--serif);font-size:clamp(2rem,3vw,3rem);font-weight:900;letter-spacing:-.03em;line-height:1.1;margin-bottom:1rem; }
.section-headline em { font-style:italic;color:var(--accent); }
.body-text { font-size:.975rem;color:var(--muted);line-height:1.85;margin-bottom:1.25rem; }

/* ── Problem ── */
.problem-section { background:var(--paper); }
.problem-pull { font-family:var(--serif);font-size:1.3rem;font-style:italic;color:var(--ink);line-height:1.55;border-left:3px solid var(--accent);padding-left:1.5rem;margin-bottom:2rem; }

.hmw-card { background:var(--ink);border-radius:14px;padding:2rem;position:relative;overflow:hidden; }
.hmw-card::before { content:'"';font-family:var(--serif);font-size:8rem;font-weight:900;color:rgba(255,255,255,.03);position:absolute;top:-1.5rem;right:1.5rem;line-height:1; }
.hmw-label { font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:.75rem; }
.hmw-text { font-family:var(--serif);font-size:1.05rem;font-style:italic;color:rgba(255,255,255,.85);line-height:1.65; }

/* ── Discovery ── */
.discovery-section { background:var(--surface); }

.quote-cards { display:flex;flex-direction:column;gap:1.25rem;margin-top:2rem; }
.quote-card { background:white;border-radius:12px;padding:1.5rem 1.5rem 1.5rem 2rem;border-left:3px solid var(--accent);box-shadow:0 2px 12px rgba(14,11,18,.05); }
.quote-mark { font-family:var(--serif);font-size:3rem;line-height:1;color:var(--accent);opacity:.25;margin-bottom:.25rem; }
.quote-text { font-family:var(--serif);font-style:italic;font-size:.975rem;color:var(--ink);line-height:1.7;margin-bottom:.75rem; }
.quote-attr { font-family:var(--mono);font-size:.65rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted); }

.walkthrough-card { background:white;border-radius:14px;padding:2rem;box-shadow:0 2px 12px rgba(14,11,18,.06);border-top:3px solid var(--accent); }
.wc-num { font-family:var(--serif);font-size:3rem;font-weight:900;color:var(--ink);line-height:1;letter-spacing:-.04em; }
.wc-num em { font-style:normal;color:var(--accent); }
.wc-label { font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:.75rem; }
.wc-body { font-size:.875rem;color:var(--muted);line-height:1.7; }

/* ── Define ── */
.define-section { background:var(--paper); }

/* Task analysis */
.task-analysis-img { width:100%;border-radius:12px;border:1px solid var(--rule);display:block; }

/* Core gaps */
.gaps-list { display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem; }
.gap-item { display:flex;gap:1rem;align-items:flex-start;background:var(--surface);border-radius:10px;padding:1.25rem;border-left:3px solid transparent;transition:border-color .2s,transform .2s; }
.gap-item:hover { border-color:var(--accent);transform:translateX(4px); }
.gap-n { font-family:var(--serif);font-size:1.5rem;font-weight:900;color:var(--accent);line-height:1;flex-shrink:0;min-width:32px; }
.gap-text { font-size:.9rem;color:var(--muted);line-height:1.65; }

/* Personas */
.personas-grid { display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-top:2rem; }
.persona-card { background:white;border-radius:14px;overflow:hidden;box-shadow:0 2px 12px rgba(14,11,18,.06);transition:transform .3s,box-shadow .3s; }
.persona-card:hover { transform:translateY(-4px);box-shadow:0 12px 32px rgba(14,11,18,.1); }
.persona-img { width:100%;height:180px;object-fit:cover;display:block; }
.persona-body { padding:1.5rem; }
.persona-tag { font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:.4rem; }
.persona-name { font-family:var(--serif);font-size:1.1rem;font-weight:700;margin-bottom:.25rem; }
.persona-role { font-size:.8rem;color:var(--muted);margin-bottom:1rem; }
.persona-section-label { font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:.4rem;margin-top:.75rem; }
.persona-items { list-style:none;display:flex;flex-direction:column;gap:.35rem; }
.persona-items li { font-size:.8rem;color:var(--muted);line-height:1.55;display:flex;gap:.5rem;align-items:flex-start; }
.persona-items li::before { content:'·';color:var(--accent);flex-shrink:0; }

/* ── Ideate / Before–After ── */
.ideate-section { background:var(--surface); }

.before-after { display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin-top:2rem; }
.ba-col {}
.ba-label { font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:1.25rem;display:flex;align-items:center;gap:.6rem; }
.ba-label.before { color:var(--muted); }
.ba-label.before::before { content:'';width:20px;height:1px;background:var(--muted);display:block; }
.ba-label.after  { color:var(--accent); }
.ba-label.after::before  { content:'';width:20px;height:1px;background:var(--accent);display:block; }
.phone-screens { display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem; }
.screen-card { border-radius:14px;overflow:hidden;border:1px solid var(--rule);background:white;transition:transform .4s,border-color .3s; }
.screen-card:hover { transform:translateY(-5px);border-color:rgba(177,4,200,.25); }
.screen-card img { width:100%;display:block; }
.screen-cap { font-size:.75rem;color:var(--muted);padding:.6rem .85rem;border-top:1px solid var(--rule); }

.testing-methods { display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;margin-top:2rem; }
.test-card { background:white;border-radius:12px;padding:1.5rem;box-shadow:0 2px 12px rgba(14,11,18,.05); }
.tc-label { font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:.6rem; }
.tc-title { font-family:var(--serif);font-size:1rem;font-weight:700;margin-bottom:.5rem; }
.tc-items { list-style:none;display:flex;flex-direction:column;gap:.4rem; }
.tc-items li { font-size:.82rem;color:var(--muted);display:flex;align-items:flex-start;gap:.6rem; }
.tc-items li::before { content:'→';color:var(--accent);font-size:.75rem;flex-shrink:0;margin-top:.1em; }

/* ── Validate ── */
.validate-section { background:var(--paper); }

.results-chart { border-radius:14px;overflow:hidden;border:1px solid var(--rule);background:white;margin-bottom:1.5rem; }
.results-chart img { width:100%;display:block; }
.chart-caption { font-size:.82rem;color:var(--muted);padding:.85rem 1.25rem;border-top:1px solid var(--rule);line-height:1.55; }

.csat-questions { background:var(--surface);border-radius:14px;padding:2rem;margin-top:2rem; }
.cq-label { font-family:var(--mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:1rem; }
.cq-list { list-style:none;display:flex;flex-direction:column;gap:.6rem; }
.cq-list li { font-size:.875rem;color:var(--muted);display:flex;gap:.75rem;align-items:flex-start;line-height:1.6; }
.cq-n { font-family:var(--mono);font-size:.65rem;font-weight:500;color:var(--accent);flex-shrink:0;min-width:18px;margin-top:.2em; }
.csat-note { font-family:var(--serif);font-style:italic;font-size:.875rem;color:var(--ink);line-height:1.65;border-left:3px solid var(--accent);padding-left:1rem;margin-top:1.5rem; }

/* ── Reflection ── */
.reflection-section { background:var(--ink); }
.reflection-section .eyebrow { color:rgba(177,4,200,.85); }
.reflection-section .eyebrow::before { background:rgba(177,4,200,.85); }
.reflection-section .section-headline { color:white; }

/* Wins / challenges */
.outcome-grid { display:grid;grid-template-columns:1fr 1fr;gap:3rem;margin-bottom:3rem; }

.wins-card { background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:2rem; }
.wins-card-label { font-family:var(--mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:1.25rem; }

.metric-row { display:flex;align-items:baseline;gap:.6rem;margin-bottom:.75rem; }
.metric-n { font-family:var(--serif);font-size:2.2rem;font-weight:900;color:white;line-height:1;letter-spacing:-.03em; }
.metric-n em { font-style:normal;color:var(--accent); }
.metric-lbl { font-size:.82rem;color:rgba(255,255,255,.45); }

.challenge-card { background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:2rem; }
.challenge-card-label { font-family:var(--mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.4);margin-bottom:1rem; }
.challenge-text { font-size:.9rem;color:rgba(255,255,255,.55);line-height:1.75; }
.challenge-text strong { color:rgba(255,255,255,.8); }

.reflection-pull {
  font-family:var(--serif);font-size:1.2rem;font-style:italic;
  color:rgba(255,255,255,.7);line-height:1.65;
  border-left:3px solid var(--accent);padding-left:1.75rem;
  max-width:820px;
}

/* ── Next ── */
.next-bar { background:var(--ink);padding:5rem 4rem;display:flex;align-items:center;justify-content:space-between;border-top:1px solid rgba(255,255,255,.06); }
.next-label { font-family:var(--mono);font-size:.68rem;letter-spacing:.15em;text-transform:uppercase;color:rgba(255,255,255,.3);margin-bottom:.75rem; }
.next-title { font-family:var(--serif);font-size:2rem;font-weight:700;color:white;letter-spacing:-.03em; }
.next-title em { font-style:italic;color:var(--accent); }
.next-arrow { width:60px;height:60px;border-radius:50%;border:1px solid rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;color:white;text-decoration:none;transition:background .2s,border-color .2s,transform .2s; }
.next-arrow:hover { background:var(--accent);border-color:var(--accent);transform:translateX(4px); }

/* ── Reveal ── */
.reveal { opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease; }
.reveal.visible { opacity:1;transform:translateY(0); }
.reveal-d1 { transition-delay:.1s; }
.reveal-d2 { transition-delay:.2s; }
.reveal-d3 { transition-delay:.3s; }
.reveal-d4 { transition-delay:.4s; }

@keyframes fadeUp { from{opacity:0;transform:translateY(22px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }

/* ── Responsive ── */
@media(max-width:960px){
  nav,.next-bar,footer { padding-left:1.5rem;padding-right:1.5rem; }
  .hero { grid-template-columns:1fr;padding:7rem 1.5rem 3rem; }
  .hero-visual { display:none; }
  .section { padding:4rem 1.5rem; }
  .stats-strip { grid-template-columns:1fr 1fr; }
  .two-col,.before-after,.outcome-grid,.testing-methods { grid-template-columns:1fr;gap:2rem; }
  .personas-grid,.phone-screens { grid-template-columns:1fr; }
  .process-nav { padding:0 1.5rem;top:61px; }
  .next-bar { flex-direction:column;align-items:flex-start;gap:2rem; }
}