:root {
  --accent:       #B104C8;
  --accent-light: #d635ef;
  --accent-dim:   rgba(177,4,200,0.10);
  --expert-siefert: #fcd34d;
  --ink:          #0e0b12;
  --paper:        #faf8fb;
  --muted:        #6b6372;
  --surface:      #f3f0f6;
  --rule:         rgba(14,11,18,0.1);
  --process-nav-anchor-offset: 160px;
  --serif: 'Playfair Display', Georgia, serif;
  --sans:  'DM Sans', sans-serif;
  --mono:  'DM Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--process-nav-anchor-offset); }
body { background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.6; overflow-x: hidden; }

/* Navigation */
#mainNav { position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:1.5rem 4rem;background:rgba(250,248,251,0.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--rule);transition:padding .4s; }
#mainNav.scrolled { padding:1rem 4rem; }
.nav-logo { font-family:var(--serif);font-size:1.1rem;font-weight:700;letter-spacing:-.02em;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:.5rem; }
.nav-dot { width:8px;height:8px;background:var(--accent);border-radius:50%;display:inline-block; }
.nav-back { font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);text-decoration:none;display:flex;align-items:center;gap:.5rem;transition:color .2s; }
.nav-back:hover { color:var(--accent); }
.nav-back svg { transition:transform .2s; }
.nav-back:hover svg { transform:translateX(-3px); }
.nav-links { display:flex;gap:2.5rem;align-items:center; }
.nav-link { font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);text-decoration:none;transition:color .2s;position:relative; }
.nav-link::after { content:'';position:absolute;bottom:-3px;left:0;right:0;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s; }
.nav-link:hover,.nav-link.active { color:var(--accent); }
.nav-link:hover::after,.nav-link.active::after { transform:scaleX(1); }
.nav-toggle { color:var(--ink);border:1px solid var(--rule);background:transparent; }

/* Hero */
.hero { min-height:100vh;background:var(--ink);display:grid;grid-template-columns:1fr 1fr;align-items:center;padding:9rem 4rem 5rem;position:relative;overflow:hidden;gap:4rem; }
.hero-grid { position:absolute;inset:0;background-image:linear-gradient(rgba(177,4,200,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(177,4,200,.05) 1px,transparent 1px);background-size:48px 48px;pointer-events:none; }
.hero-orb { position:absolute;width:700px;height:700px;background:radial-gradient(circle,rgba(177,4,200,.14) 0%,transparent 62%);top:50%;right:-140px;transform:translateY(-50%);pointer-events:none; }
.hero-orb-2 { position:absolute;width:420px;height:420px;background:radial-gradient(circle,rgba(177,4,200,.08) 0%,transparent 65%);bottom:-80px;left:-60px;pointer-events:none; }

.hero-content { position:relative;z-index:2;max-width:560px; }
.hero-badge { display:inline-flex;align-items:center;gap:.5rem;background:var(--accent-dim);border:1px solid rgba(177,4,200,.3);border-radius:100px;padding:.35rem .85rem;font-family:var(--mono);font-size:.65rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-light);margin-bottom:1.5rem;opacity:0;animation:fadeUp .8s ease .05s forwards; }
.badge-pulse { width:6px;height:6px;background:var(--accent);border-radius:50%;animation:pulse 2s ease infinite; }
.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:var(--type-scale-hero);font-weight:900;line-height:.93;letter-spacing:-.04em;color:white;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-size:1.1rem;color:rgba(255,255,255,.5);line-height:1.65;max-width:480px;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:rgba(255,255,255,.3); }
.meta-value { font-size:.875rem;font-weight:500;color:rgba(255,255,255,.75); }
.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 24px rgba(177,4,200,.35);transition:background .2s,transform .2s,box-shadow .2s; }
.btn-primary:hover { background:var(--accent-light);transform:translateY(-2px);box-shadow:0 8px 32px rgba(177,4,200,.45); }
.btn-ghost-light { font-size:.875rem;font-weight:500;color:rgba(255,255,255,.5);text-decoration:none;border-bottom:1px solid rgba(255,255,255,.2);padding-bottom:2px;transition:color .2s,border-color .2s; }
.btn-ghost-light:hover { color:white;border-color:rgba(255,255,255,.5); }

/* Hero visuals */
.hero-visual { position:relative;z-index:2;display:flex;align-items:center;justify-content:center;min-height:620px;padding:1rem 0;opacity:0;animation:fadeIn 1.2s ease .6s forwards; }
.hero-image-stack { position:relative;top:-24px;width:100%;max-width:540px;height:620px; }
.hero-image-stack::before {
  content:'';
  position:absolute;
  inset:90px 40px 70px;
  background:radial-gradient(circle, rgba(177,4,200,.22) 0%, rgba(177,4,200,.08) 35%, transparent 72%);
  filter:blur(18px);
  pointer-events:none;
}
.hero-stack-img {
  position:absolute;
  display:block;
  max-width:100%;
  height:auto;
  border-radius:28px;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 28px 80px rgba(0,0,0,.45);
  background:#120f17;
  user-select:none;
  -webkit-user-drag:none;
  transition:transform .35s ease, box-shadow .35s ease;
}
.hero-stack-img-left { width:240px;left:10px;top:38px;z-index:4;transform:rotate(-15deg); }
.hero-stack-img-center { width:230px;left:190px;top:0;z-index:3;transform:rotate(-1deg); }
.hero-stack-img-right { width:240px;right:12px;top:220px;z-index:2;transform:rotate(13deg); }
.hero-stack-img-left:hover { transform:rotate(-15deg) scale(1.04);box-shadow:0 36px 92px rgba(0,0,0,.5); }
.hero-stack-img-center:hover { transform:rotate(-1deg) scale(1.04);box-shadow:0 36px 92px rgba(0,0,0,.5); }
.hero-stack-img-right:hover { transform:rotate(13deg) scale(1.04);box-shadow:0 36px 92px rgba(0,0,0,.5); }
.phone-wrap { position:relative;width:100%;max-width:260px; }
.phone-shell { background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:44px;padding:14px;box-shadow:0 40px 80px rgba(0,0,0,.5); }
.phone-screen { background:#0a0b10;border-radius:32px;overflow:hidden;aspect-ratio:9/19.5;display:flex;flex-direction:column; }
.ps-header { padding:.9rem 1.1rem .7rem;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.06); }
.ps-logo { font-family:var(--serif);font-size:.85rem;font-weight:900;color:white; }
.ps-logo em { color:var(--accent-light);font-style:normal; }
.ps-pill { font-family:var(--mono);font-size:.52rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-light);background:var(--accent-dim);padding:.18rem .5rem;border-radius:100px; }
.ps-avatar-zone { padding:1.1rem;display:flex;flex-direction:column;align-items:center;gap:.65rem;flex:1; }
.avatar-ring { width:64px;height:64px;border-radius:50%;border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;font-size:1.4rem;box-shadow:0 0 24px rgba(177,4,200,.3);background:var(--accent-dim); }
.avatar-name-sm { font-family:var(--mono);font-size:.58rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.4); }
.avatar-msg { background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:.65rem .85rem;font-size:.68rem;color:rgba(255,255,255,.6);line-height:1.5;text-align:center; }
.ps-challenges { padding:.65rem;display:flex;flex-direction:column;gap:.45rem; }
.chal-row { display:flex;gap:.45rem; }
.chal-btn { flex:1;background:var(--accent-dim);border:1px solid rgba(177,4,200,.25);border-radius:7px;padding:.45rem .4rem;font-family:var(--mono);font-size:.52rem;letter-spacing:.05em;text-transform:uppercase;color:var(--accent-light);text-align:center; }
.chal-btn.alt { background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.07);color:rgba(255,255,255,.3); }

/* Floating badges */
.float-badge { position:absolute;background:rgba(255,255,255,.06);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:.85rem 1.1rem; }
.fb-tl { top:-16px;right:-18px; }
.fb-bl { bottom:16px;left:-28px; }
.fb-tag { font-family:var(--mono);font-size:.56rem;letter-spacing:.08em;text-transform:uppercase;padding:.18rem .5rem;border-radius:100px;background:var(--accent-dim);color:var(--accent-light);display:inline-block;margin-bottom:.25rem; }
.fb-num { font-family:var(--serif);font-size:1.3rem;font-weight:900;line-height:1;color:white; }
.fb-lbl { font-size:.65rem;color:rgba(255,255,255,.4);margin-top:.12rem; }

/* Stats strip */
.stats-strip { background:#070910;display:grid;grid-template-columns:repeat(4,1fr); }
.stat-cell { padding:3rem 2.5rem;border-right:1px solid rgba(255,255,255,.06);transition:background .3s; }
.stat-cell:hover { background:var(--accent-dim); }
.stat-cell:last-child { border-right:none; }
.stat-n { font-family:var(--serif);font-size:2.5rem;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,.3);margin-top:.4rem; }

/* Process nav */
.process-nav { background:rgba(10,11,18,.95);border-top:1px solid rgba(255,255,255,.07);border-bottom:1px solid rgba(255,255,255,.07);padding:0 4rem;display:flex;justify-content:center;gap:0;overflow-x:auto;position:sticky;top:73px;z-index:90; }
.pnav-item { font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;padding:1.25rem 2rem;color:rgba(255,255,255,.35);text-decoration:none;white-space:nowrap;border-bottom:2px solid transparent;transition:color .2s,border-color .2s; }
.pnav-item:hover { color:var(--accent-light);border-bottom-color:var(--accent); }

#problem,
#research,
#insights,
#solution,
#iterations,
#finaldesign,
#walkthrough,
#evaluation,
#usability-results,
#sus-vader,
#qualitative-results,
#results-summary,
#expert-review,
#reflection {
  scroll-margin-top: var(--process-nav-anchor-offset);
}

/* Shared layout */
.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; }
.three-col { display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem; }

.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:var(--type-scale-section);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; }

.dark-section { background:var(--ink); }
.dark-section .eyebrow { color:var(--accent-light); }
.dark-section .eyebrow::before { background:var(--accent-light); }
.dark-section .section-headline { color:white; }
.dark-section .body-text { color:rgba(255,255,255,.5); }

/* Image placeholder system */
.img-placeholder {
  background:linear-gradient(135deg, rgba(177,4,200,.08) 0%, rgba(14,11,18,.06) 100%);
  border:1px dashed rgba(177,4,200,.2);
  border-radius:14px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:.75rem;text-align:center;
  position:relative;overflow:hidden;
}
.img-placeholder::before {
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg, rgba(177,4,200,.04) 0%, transparent 60%);
}
.ip-label { font-family:var(--mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(177,4,200,.5);position:relative;z-index:1; }
.ip-sub { font-size:.78rem;color:rgba(14,11,18,.35);position:relative;z-index:1;max-width:200px;line-height:1.5; }

.img-placeholder.dark {
  background:linear-gradient(135deg, rgba(177,4,200,.1) 0%, rgba(255,255,255,.02) 100%);
  border-color:rgba(177,4,200,.2);
}
.img-placeholder.dark .ip-label { color:rgba(177,4,200,.6); }
.img-placeholder.dark .ip-sub { color:rgba(255,255,255,.2); }

/* Problem */
.problem-statement { background:var(--ink);border-radius:14px;padding:2rem 2rem 2rem 2.5rem;border-left:3px solid var(--accent);position:relative;overflow:hidden;margin-bottom:1.5rem; }
.problem-statement::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; }
.ps-label { font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-light);margin-bottom:.75rem; }
.ps-text { font-family:var(--serif);font-size:1.05rem;color:rgba(255,255,255,.85);line-height:1.65; }

.symptom-grid { display:grid;grid-template-columns:1fr 1fr;gap:.6rem;margin-top:1.5rem; }
.symptom-item { font-size:.875rem;color:var(--muted);padding:.65rem 1rem;background:var(--surface);border-radius:8px;border-left:2px solid transparent;transition:border-color .2s,transform .2s; }
.symptom-item:hover { border-color:var(--accent);transform:translateX(3px); }

/* Research */
.method-strip { display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--rule);border-radius:12px;overflow:hidden;margin-bottom:3rem; }
.method-cell { background:white;padding:1.75rem 1.25rem;text-align:center;transition:background .2s; }
.method-cell:hover { background:var(--accent-dim); }
.method-n { font-family:var(--serif);font-size:2rem;font-weight:900;color:var(--ink);line-height:1;letter-spacing:-.04em;margin-bottom:.25rem; }
.method-n em { font-style:normal;color:var(--accent); }
.method-label { font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted); }

.research-imgs { display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-top:2.5rem; }

/* Insights */
.insight-grid { display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-bottom:2.5rem; }
.insight-card { background:var(--ink);border-radius:14px;padding:1.75rem;position:relative;overflow:hidden;transition:transform .3s; }
.insight-card:hover { transform:translateY(-4px); }
.insight-card::before { content:attr(data-n);font-family:var(--serif);font-size:5rem;font-weight:900;color:rgba(255,255,255,.04);position:absolute;top:-.5rem;right:1rem;line-height:1; }
.ic-tag { font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-light);margin-bottom:.6rem; }
.ic-title { font-family:var(--serif);font-size:1rem;font-weight:700;color:white;margin-bottom:.4rem; }
.ic-body { font-size:.82rem;color:rgba(255,255,255,.42);line-height:1.6; }

/* Theory strip */
.theory-row { display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-top:2.5rem; }
.theory-card { background:white;border-radius:12px;padding:1.5rem;box-shadow:0 2px 12px rgba(14,11,18,.06);border-bottom:3px solid var(--accent); }
.tc-label { font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:.5rem; }
.tc-title { font-family:var(--serif);font-size:1rem;font-weight:700;margin-bottom:.4rem; }
.tc-body { font-size:.8rem;color:var(--muted);line-height:1.6; }

/* Solution */
.feature-grid { display:grid;max-width:1133px;margin:0 auto;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px; }
.feature-card { width:100%;background:var(--surface);border-radius:12px;padding:24px 12px 0;overflow:hidden;transition:transform .2s,box-shadow .2s;text-align:center; }
.feature-card:hover { transform:translateY(-3px);box-shadow:0 8px 24px rgba(14,11,18,.08); }
#solution .fc-img { width:100%;max-width:100%;aspect-ratio:393 / 853;height:auto;object-fit:contain;display:block; }
img.fc-img.img-placeholder { border:0;border-radius:0;background:none; }
.fc-body { padding:1.5rem 0; }
.fc-tag { font-family:var(--mono);font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:.4rem; }
.fc-title { font-family:var(--serif);font-size:1.05rem;font-weight:700;margin-bottom:.5rem; }
.fc-text { font-size:.82rem;color:var(--muted);line-height:1.65; }

/* Avatar row */
.avatar-row { display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:3rem; }
.avatar-card { background:var(--surface);border-radius:12px;padding:1.5rem;text-align:center;transition:transform .2s,box-shadow .2s; }
.avatar-card:hover { transform:translateY(-3px);box-shadow:0 8px 24px rgba(14,11,18,.08); }
.av-img { width:100%;height:100px;border-radius:8px;margin-bottom:.75rem; }
.av-name { font-family:var(--serif);font-size:.95rem;font-weight:700;margin-bottom:.2rem; }
.av-drive { font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:.35rem; }
.av-desc { font-size:.75rem;color:var(--muted);line-height:1.5; }

.ethics-banner { background:var(--ink);border-radius:14px;padding:2rem 2.5rem;margin-top:2.5rem;display:flex;gap:2rem;align-items:center; }
.eb-label { font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-light);margin-bottom:.4rem; }
.eb-title { font-family:var(--serif);font-size:1.1rem;font-weight:700;color:white;margin-bottom:.4rem; }
.eb-body { font-size:.85rem;color:rgba(255,255,255,.42);line-height:1.65; }
.eb-badge { flex-shrink:0;width:56px;height:56px;background:var(--accent-dim);border:1px solid rgba(177,4,200,.3);border-radius:12px;display:flex;align-items:center;justify-content:center; }
.eb-badge svg { width:28px;height:28px;stroke:var(--accent-light); }

/* Design iterations */
.iterations-section {
  background: var(--ink);
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.iterations-intro {
  max-width: 660px;
  margin-bottom: 3.5rem;
}

.iter-block {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 2.5rem;
  box-shadow: 0 18px 40px rgba(0,0,0,.22);
  backdrop-filter: blur(10px);
}

.iter-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.75rem 2rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
}

.iter-num {
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent-light);
  line-height: 1;
  letter-spacing: -.04em;
  opacity: .3;
  flex-shrink: 0;
}

.iter-eyebrow {
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: .25rem;
}

.iter-title {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: white;
  line-height: 1.25;
}

.iter-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: stretch;
}

.iter-version {
  min-width: 0;
  padding: 2rem;
}

.iter-version:first-child { border-right: 1px solid rgba(255,255,255,.08); }
.iter-version:last-child { border-left: 1px solid rgba(255,255,255,.08); }

.iter-version-label {
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

.iter-version-label::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: block;
}

.iter-version-label.before { color: rgba(255,255,255,.45); }
.iter-version-label.before::before { background: rgba(255,255,255,.35); }
.iter-version-label.after { color: var(--accent-light); }
.iter-version-label.after::before { background: var(--accent); }

.iter-screen-ph,
.iter-screen-img {
  width: min(100%, 240px);
  margin: 0 auto 1.25rem;
  border-radius: 12px;
  display: block;
}

.iter-screen-ph {
  background: linear-gradient(160deg, rgba(177,4,200,.12) 0%, rgba(255,255,255,.03) 100%);
  border: 1px dashed rgba(177,4,200,.24);
  aspect-ratio: 9 / 16;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.iter-screen-ph--after .isp-dot {
  border-color: rgba(177,4,200,.5);
  background: rgba(177,4,200,.05);
}

.iter-screen-img {
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 16px 36px rgba(0,0,0,.24);
}

.isp-inner {
  text-align: center;
  padding: 1rem;
}

.isp-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid rgba(177,4,200,.36);
  margin: 0 auto .5rem;
}

.isp-label {
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(177,4,200,.62);
}

.iter-ann-tag {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .25rem .7rem;
  border-radius: 999px;
  display: inline-block;
  margin-bottom: .75rem;
}

.iter-ann-tag.problem { background: rgba(255,255,255,.07); color: rgba(255,255,255,.56); }
.iter-ann-tag.solution { background: rgba(177,4,200,.18); color: var(--accent-light); }

.iter-ann-text {
  font-size: .875rem;
  color: rgba(255,255,255,.66);
  line-height: 1.75;
}

.iter-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: 2rem 1.5rem;
  min-width: 80px;
}

.iter-arrow-label {
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(177,4,200,.68);
  writing-mode: vertical-lr;
  transform: rotate(180deg);
  white-space: nowrap;
}

.iter-outcome {
  background: rgba(0,0,0,.16);
  padding: 1.25rem 2rem;
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  border-top: 1px solid rgba(255,255,255,.06);
}

.io-label {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-light);
  flex-shrink: 0;
}

.io-text {
  font-size: .85rem;
  color: rgba(255,255,255,.62);
  line-height: 1.65;
}

.iter-learning {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 2rem;
  margin-top: .5rem;
  box-shadow: 0 18px 40px rgba(0,0,0,.18);
}

.il-label {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 1.5rem;
}

.il-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
}

.il-n {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
  color: white;
  margin-bottom: .5rem;
}

.il-text {
  font-size: .82rem;
  color: rgba(255,255,255,.6);
  line-height: 1.65;
}

/* Final design */
.final-section { background:var(--surface); }
#finaldesign { background:var(--surface); }
.finaldesign-intro { max-width:640px; margin-bottom:3rem; }
#finaldesign .section-wide { max-width:1160px; }
#finaldesign .screen-gallery,
#finaldesign .wide-screen-row {
  width:calc(100vw - 8rem);
  margin-left:calc(50% - 50vw + 4rem);
  margin-right:calc(50% - 50vw + 4rem);
}

#finaldesign .screen-gallery { display:grid;grid-template-columns:repeat(3,minmax(0,264px));justify-content:center;gap:32px;margin-bottom:2rem; }
.screen-card { width:100%;background:var(--surface);border-radius:12px;padding:24px 12px 0;overflow:hidden;transition:transform .2s,box-shadow .2s;text-align:center; }
.screen-card:hover { transform:translateY(-3px);box-shadow:0 8px 24px rgba(14,11,18,.08); }
#finaldesign .screen-img { width:100%;max-width:100%;aspect-ratio:383 / 785;height:auto;object-fit:contain;display:block; }
img.screen-img { border:0;background:none; }
#finaldesign .screen-gallery .screen-ph { display:none; }
.screen-lbl { width:100%;padding:.75rem 0;font-family:var(--mono);font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.35);border-top:1px solid rgba(255,255,255,.06); }
.screen-desc { width:100%;padding:.4rem 0 .9rem;font-size:.78rem;color:rgba(255,255,255,.22);line-height:1.5; }

#finaldesign .screen-lbl {
  color:var(--muted);
  border-top:none;
}

#finaldesign .screen-desc { color:rgba(14,11,18,.55); }

.screen-ph { background:linear-gradient(160deg, rgba(177,4,200,.1) 0%, rgba(14,11,18,.4) 100%);aspect-ratio:9/16;display:flex;align-items:center;justify-content:center; }
.screen-ph-inner { text-align:center; }
.screen-ph-dot { width:32px;height:32px;border:1.5px solid rgba(177,4,200,.4);border-radius:50%;margin:0 auto .5rem;display:flex;align-items:center;justify-content:center; }
.screen-ph-dot svg { width:14px;height:14px;stroke:var(--accent-light); }
.screen-ph-label { font-family:var(--mono);font-size:.58rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(177,4,200,.5); }

.wide-screen-row { display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:2rem; }
.wide-screen-card { border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.08);transition:transform .4s,border-color .3s; }
.wide-screen-card:hover { transform:translateY(-5px);border-color:rgba(177,4,200,.3); }
.ws-img { width:100%;display:block;aspect-ratio:16/9;object-fit:cover; }
.ws-ph { background:linear-gradient(160deg, rgba(177,4,200,.08) 0%, rgba(14,11,18,.4) 100%);aspect-ratio:16/9;display:flex;align-items:center;justify-content:center; }
.ws-lbl { padding:.75rem 1.1rem;font-family:var(--mono);font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.35);border-top:1px solid rgba(255,255,255,.06); }
.ws-desc { padding:.4rem 1.1rem .9rem;font-size:.78rem;color:rgba(255,255,255,.22);line-height:1.5; }

/* Video section */
.video-section,
.walkthrough-section {
  background:var(--surface);
  border-top:1px solid rgba(177,4,200,.08);
}

.walkthrough-section { padding-top:0; }
.walkthrough-eyebrow { padding-top:2rem; }
.walkthrough-intro,
#walkthrough > .section-wide > .body-text { max-width:560px; margin-bottom:2.5rem; }

.video-wrap { position:relative;border-radius:18px;overflow:hidden;border:1px solid rgba(177,4,200,.12);background:#fff;box-shadow:0 12px 36px rgba(14,11,18,.08);cursor:pointer; }
.video-wrap:hover .vp-overlay { opacity:.7; }
.video-placeholder { width:100%;aspect-ratio:16/9;background:linear-gradient(135deg, rgba(177,4,200,.12) 0%, rgba(14,11,18,.8) 60%, rgba(177,4,200,.06) 100%);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.25rem;position:relative; }
.vp-overlay { position:absolute;inset:0;background:rgba(14,11,18,.3);transition:opacity .3s; }
.vp-play-btn { width:72px;height:72px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;box-shadow:0 0 40px rgba(177,4,200,.5);transition:transform .2s,box-shadow .2s;position:relative;z-index:1; }
.video-wrap:hover .vp-play-btn { transform:scale(1.08);box-shadow:0 0 56px rgba(177,4,200,.65); }
.vp-play-btn svg { width:26px;height:26px;fill:white;margin-left:3px; }
.vp-label { font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.5);position:relative;z-index:1; }
.vp-note { font-size:.8rem;color:rgba(255,255,255,.25);position:relative;z-index:1; }

.vp-bg-lines { position:absolute;inset:0;overflow:hidden;pointer-events:none; }
.vp-line { position:absolute;height:1px;background:linear-gradient(90deg,transparent,rgba(177,4,200,.15),transparent); }
.vp-line--1 { top:20%; width:60%; left:20%; }
.vp-line--2 { top:50%; width:80%; left:10%; }
.vp-line--3 { top:75%; width:50%; left:30%; }

.walkthrough-help {
  margin-top:1rem;
  text-align:center;
  font-family:var(--mono);
  font-size:.65rem;
  letter-spacing:.08em;
  color:rgba(14,11,18,.35);
}

/* Evaluation */
.eval-two { display:grid;grid-template-columns:1fr 1fr;gap:2rem; }
.eval-card { background:white;border-radius:14px;padding:2rem;box-shadow:0 2px 12px rgba(14,11,18,.06); }
.ev-label { font-family:var(--mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:1rem; }
.ev-list { list-style:none;display:flex;flex-direction:column;gap:.6rem; }
.ev-list li { font-size:.875rem;color:var(--muted);display:flex;align-items:flex-start;gap:.75rem;line-height:1.65; }
.ev-list li::before { content:'?';color:var(--accent);font-size:.8rem;flex-shrink:0;margin-top:.15em; }

/* Overall usability */
.usability-results-section { background: var(--paper); }
.usability-results-intro { max-width: 720px; margin-bottom: 2rem; }

.usability-results-card {
  background: #fff;
  border: 1px solid rgba(177,4,200,.12);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 16px 44px rgba(14,11,18,.08);
}

.usability-results-card-head {
  background: linear-gradient(135deg, var(--ink) 0%, #16122b 100%);
  padding: 1.75rem 2rem 1.5rem;
}

.usability-results-kicker {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.42);
  margin-bottom: .45rem;
}

.usability-results-card-title {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 900;
  line-height: 1.1;
  color: #fff;
  letter-spacing: -.03em;
}

.usability-results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  padding: 1.5rem;
  background: linear-gradient(180deg, rgba(177,4,200,.04) 0%, rgba(255,255,255,0) 100%);
}

.usability-panel {
  min-width: 0;
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(177,4,200,.12);
  background: #fff;
  box-shadow: 0 10px 28px rgba(14,11,18,.06);
}

.usability-panel-head {
  background: var(--ink);
  padding: 1rem;
  min-height: 152px;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.usability-question-chip {
  align-self: flex-start;
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(177,4,200,.25);
  border-radius: 999px;
  padding: .22rem .55rem;
  font-weight: 500;
}

.usability-panel-head .body-text {
  color: #fff;
}

.usability-panel-question {
  margin-bottom: 0;
}

.usability-chart-area {
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: .75rem;
  padding: 1.5rem;
  background: #fff;
}

.usability-chart-image {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.usability-chart-image:not([src]) {
  display: none;
}

.usability-chart-image[src] + .usability-chart-placeholder {
  display: none;
}

.usability-chart-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .75rem;
}

.usability-chart-icon { color: rgba(177,4,200,.34); }

.usability-chart-icon svg {
  width: 52px;
  height: 52px;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.usability-chart-label {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(177,4,200,.55);
}

.usability-panel-foot {
  display: flex;
  justify-content: space-around;
  gap: 1rem;
  padding: .9rem 1rem 1rem;
  border-top: 1px solid rgba(177,4,200,.12);
  background: var(--surface);
}

.usability-iteration {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .35rem;
  text-align: center;
  font-size: .72rem;
  font-weight: 600;
  color: var(--muted);
}

.usability-results-foot {
  background: rgba(177,4,200,.06);
  border-top: 1px solid rgba(177,4,200,.14);
  padding: .9rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .65rem;
}

.usability-results-foot-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.usability-results-foot-text {
  font-size: .78rem;
  color: var(--muted);
  line-height: 1.6;
}

/* SUS + VADER */
.sus-vader-section { background: var(--surface); }
.sus-vader-intro { max-width: 720px; margin-bottom: 2rem; }

.sus-vader-card {
  background: #fff;
  border: 1px solid rgba(177,4,200,.12);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 16px 44px rgba(14,11,18,.08);
}

.sus-vader-card-head {
  background: linear-gradient(135deg, #140f24 0%, #23183c 100%);
  padding: 1.75rem 2rem 1.5rem;
}

.sus-vader-kicker {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.42);
  margin-bottom: .45rem;
}

.sus-vader-card-title {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 900;
  line-height: 1.1;
  color: #fff;
  letter-spacing: -.03em;
}

.sus-vader-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  background: linear-gradient(180deg, rgba(177,4,200,.04) 0%, rgba(255,255,255,0) 100%);
}

.sus-vader-panel {
  min-width: 0;
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(177,4,200,.12);
  background: #fff;
  box-shadow: 0 10px 28px rgba(14,11,18,.06);
}

.sus-vader-panel-head {
  background: var(--ink);
  padding: 1rem 1rem 1rem 4rem;
  position: relative;
  min-height: 74px;
  display: flex;
  align-items: center;
}

.sus-vader-badge {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.sus-vader-badge--warning { background: #e03030; }
.sus-vader-badge--success { background: #2eab6a; }

.sus-vader-panel-head .body-text {
  color: #fff;
}

.sus-vader-panel-title {
  margin-bottom: 0;
}

.sus-vader-chart-area {
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: .85rem;
  padding: 1.5rem;
  background: #fff;
}

.sus-vader-chart-image {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.sus-vader-chart-image:not([src]) {
  display: none;
}

.sus-vader-chart-image[src] + .sus-vader-chart-placeholder {
  display: none;
}

.sus-vader-chart-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .85rem;
}

.sus-vader-chart-icon { color: rgba(177,4,200,.34); }

.sus-vader-chart-icon svg {
  width: 56px;
  height: 56px;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sus-vader-chart-label {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(177,4,200,.55);
}

.sus-vader-panel-foot {
  display: flex;
  justify-content: space-around;
  gap: 1rem;
  padding: .95rem 1rem 1rem;
  border-top: 1px solid rgba(177,4,200,.12);
  background: #fff;
}

.sus-vader-iteration {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .35rem;
  text-align: center;
  font-size: .75rem;
  font-weight: 600;
  color: var(--muted);
}

.sus-vader-foot {
  background: rgba(177,4,200,.06);
  border-top: 1px solid rgba(177,4,200,.14);
  padding: .9rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .65rem;
}

.sus-vader-foot-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.sus-vader-foot-text {
  font-size: .78rem;
  color: var(--muted);
  line-height: 1.6;
}

.sus-vader-foot-status--warning { color: #c82626; font-weight: 600; }
.sus-vader-foot-status--success { color: #238553; font-weight: 600; }
.sus-vader-foot-sep { color: rgba(14,11,18,.3); }

/* Qualitative results */
.qualitative-results-section { background: var(--paper); }
.qualitative-results-intro { max-width: 720px; margin-bottom: 2rem; }

.qualitative-results-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.qualitative-round-card {
  background: #fff;
  border: 1px solid rgba(177,4,200,.12);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 16px 44px rgba(14,11,18,.08);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.qualitative-round-head {
  background: linear-gradient(135deg, #140f24 0%, #23183c 100%);
  padding: 1.6rem 1.6rem 1.35rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}

.qualitative-round-kicker {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.42);
  margin-bottom: .45rem;
}

.qualitative-round-title {
  font-family: var(--serif);
  font-size: var(--type-scale-detail);
  font-weight: 900;
  line-height: 1.15;
  color: #fff;
  letter-spacing: -.03em;
}

.qualitative-round-title em {
  font-style: normal;
  font-weight: 700;
  color: rgba(255,255,255,.68);
}

.qualitative-round-badge {
  flex-shrink: 0;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px;
  padding: .35rem .85rem;
  font-family: var(--mono);
  font-size: .58rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.86);
}

.qualitative-method {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding: 1rem 1.6rem 0;
}

.qualitative-method-label {
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}

.qualitative-method-title {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

.qualitative-card-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1.25rem 1.6rem 1.5rem;
}

.qualitative-column {
  border-radius: 18px;
  padding: 1rem;
  border: 1px solid rgba(177,4,200,.08);
}

.qualitative-column--wins {
  background: rgba(177,4,200,.04);
}

.qualitative-column--challenges {
  background: #fff8f2;
  border-color: rgba(224,120,32,.12);
}

.qualitative-column-head {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin-bottom: .95rem;
}

.qualitative-column-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.qualitative-column-icon svg {
  width: 14px;
  height: 14px;
}

.qualitative-column--wins .qualitative-column-icon {
  background: var(--accent);
  color: #fff;
}

.qualitative-column--challenges .qualitative-column-icon {
  background: #e07820;
  color: #fff;
}

.qualitative-column-label {
  font-family: var(--mono);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.qualitative-column--wins .qualitative-column-label { color: var(--accent); }
.qualitative-column--challenges .qualitative-column-label { color: #d46b18; }

.qualitative-quote-card {
  position: relative;
  border-radius: 12px;
  padding: .95rem 1rem .95rem 1.15rem;
  margin-bottom: .85rem;
}

.qualitative-quote-card:last-child { margin-bottom: 0; }

.qualitative-column--wins .qualitative-quote-card {
  background: #fff;
  border-left: 3px solid var(--accent);
  box-shadow: 0 4px 12px rgba(14,11,18,.04);
}

.qualitative-column--challenges .qualitative-quote-card {
  background: #fff;
  border-left: 3px solid #e07820;
  box-shadow: 0 4px 12px rgba(224,120,32,.05);
}

.qualitative-quote-mark {
  position: absolute;
  top: .6rem;
  left: .8rem;
  font-family: var(--serif);
  font-size: 2rem;
  line-height: .7;
  opacity: .16;
}

.qualitative-column--wins .qualitative-quote-mark { color: var(--accent); }
.qualitative-column--challenges .qualitative-quote-mark { color: #d46b18; }

.qualitative-quote-text {
  font-size: .82rem;
  font-style: italic;
  color: var(--ink);
  line-height: 1.6;
  padding-left: .45rem;
}

.qualitative-quote-attribution {
  margin-top: .45rem;
  padding-left: .45rem;
  font-size: .7rem;
  font-weight: 600;
}

.qualitative-column--wins .qualitative-quote-attribution { color: var(--accent); }
.qualitative-column--challenges .qualitative-quote-attribution { color: #d46b18; }

.qualitative-round-foot {
  background: rgba(177,4,200,.06);
  border-top: 1px solid rgba(177,4,200,.14);
  padding: .9rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .65rem;
  margin-top: auto;
}

.qualitative-round-foot-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.qualitative-round-foot-text {
  font-size: .78rem;
  color: var(--muted);
  line-height: 1.6;
}

/* Results summary */
.results-summary-section {
  background: var(--surface);
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.results-summary-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(177,4,200,.12) 0%, transparent 34%),
    radial-gradient(circle at bottom right, rgba(29,158,117,.08) 0%, transparent 30%);
  pointer-events: none;
}

.results-summary-section .section-wide {
  position: relative;
  z-index: 1;
}

.results-summary-intro {
  max-width: 760px;
  margin-bottom: 2rem;
  color: var(--muted);
}

.results-summary-card {
  background: linear-gradient(180deg, rgba(14,11,18,.97) 0%, rgba(20,16,28,.98) 100%);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: 0 18px 40px rgba(0,0,0,.22);
  backdrop-filter: blur(10px);
}

.results-summary-head {
  margin-bottom: 1.5rem;
}

.results-summary-kicker {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.38);
  margin-bottom: .45rem;
}

.results-summary-title {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 2.8vw, 2.6rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.03em;
  color: #fff;
}

.results-summary-metrics {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: .85rem;
  margin-bottom: 1.5rem;
}

.results-metric-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 1rem .9rem;
}

.results-metric-card--highlight {
  background: rgba(13,46,32,.78);
  border: 1.5px solid #1D9E75;
}

.results-metric-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .7rem;
}

.results-metric-label {
  font-size: .76rem;
  font-weight: 500;
  color: rgba(240,238,255,.54);
}

.results-metric-card--highlight .results-metric-label { color: #5DCAA5; }

.results-metric-badge {
  font-size: .62rem;
  padding: .18rem .45rem;
  border-radius: 4px;
  font-weight: 600;
  white-space: nowrap;
}

.results-metric-badge--no { background: rgba(226,75,74,.18); color: #F09595; }
.results-metric-badge--near { background: rgba(239,159,39,.18); color: #FAC775; }
.results-metric-badge--yes { background: rgba(29,158,117,.25); color: #5DCAA5; }

.results-metric-value {
  font-size: 1.9rem;
  font-weight: 500;
  line-height: 1;
  color: #f0eeff;
  margin-bottom: .3rem;
}

.results-metric-card--highlight .results-metric-value { color: #9FE1CB; }

.results-metric-sub {
  font-size: .72rem;
  color: rgba(240,238,255,.42);
  margin-bottom: .55rem;
}

.results-metric-card--highlight .results-metric-sub { color: rgba(159,225,203,.66); }

.results-metric-variance {
  font-size: .72rem;
  color: rgba(240,238,255,.3);
  margin-bottom: .65rem;
}

.results-metric-card--highlight .results-metric-variance { color: #5DCAA5; }

.results-effect-label {
  font-size: .62rem;
  color: rgba(240,238,255,.3);
  margin-bottom: .35rem;
  text-transform: lowercase;
}

.results-metric-card--highlight .results-effect-label { color: rgba(93,202,165,.7); }

.results-effect-dots {
  display: flex;
  gap: 4px;
  margin-bottom: .25rem;
}

.results-effect-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
}

.results-effect-dot--filled { background: rgba(255,255,255,.45); }
.results-metric-card--near .results-effect-dot--filled { background: #EF9F27; }
.results-metric-card--highlight .results-effect-dot--filled { background: #1D9E75; }

.results-effect-name {
  font-size: .64rem;
  color: rgba(240,238,255,.32);
}

.results-metric-card--highlight .results-effect-name { color: #5DCAA5; }

.results-chart-wrap {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 1.4rem;
}

.results-chart {
  height: 220px;
  margin-bottom: 1rem;
}

.results-chart-grid {
  height: 100%;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
  align-items: end;
}

.results-bar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  height: 100%;
}

.results-bar-track {
  width: 100%;
  max-width: 68px;
  height: 180px;
  display: flex;
  align-items: end;
  padding: 0 10px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.results-bar-fill {
  width: 100%;
  border-radius: 8px 8px 0 0;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.18);
  border-bottom: none;
  min-height: 3px;
}

.results-bar-item--q1 .results-bar-fill { height: 3px; }
.results-bar-item--q2 .results-bar-fill { height: 180px; }
.results-bar-item--q3 .results-bar-fill {
  height: 151px;
  background: #BA7517;
  border-color: #EF9F27;
}
.results-bar-item--sus .results-bar-fill { height: 121px; }
.results-bar-item--vader .results-bar-fill {
  height: 155px;
  background: #1D9E75;
  border-color: #5DCAA5;
}

.results-bar-label {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: rgba(240,238,255,.45);
}

.results-chart-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.results-legend {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.results-legend-item {
  display: flex;
  align-items: center;
  gap: .45rem;
  font-size: .72rem;
  color: rgba(240,238,255,.38);
}

.results-legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.results-legend-swatch--yes { background: #1D9E75; }
.results-legend-swatch--near { background: #EF9F27; }
.results-legend-swatch--no { background: rgba(255,255,255,.2); }

.results-chart-footnote {
  margin-left: auto;
  font-size: .65rem;
  color: rgba(240,238,255,.24);
  font-style: italic;
}

/* Expert review */
.expert-review-section {
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.expert-review-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(177,4,200,.12) 0%, transparent 34%);
  pointer-events: none;
}
.expert-review-shell { position: relative; z-index: 1; }
.expert-review-intro { max-width: 720px; margin-bottom: 2rem; }

.expert-review-hero,
.expert-review-panel,
.expert-review-stepper {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(10px);
  box-shadow: 0 18px 40px rgba(0,0,0,.22);
}

.expert-review-hero {
  border-radius: 24px;
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.expert-review-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1.25rem;
}

.expert-review-chip {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  border-radius: 999px;
  padding: .55rem 1rem;
  color: rgba(255,255,255,.72);
  font-size: .82rem;
}

.expert-review-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.expert-review-dot--siefert { background: var(--expert-siefert); }
.expert-review-dot--end { background: var(--sky); }

.expert-review-summary {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 1rem;
  color: rgba(255,255,255,.66);
  font-size: .95rem;
  line-height: 1.8;
}

.expert-review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.expert-review-panel {
  border-radius: 22px;
  padding: 1.4rem;
}

.expert-review-panel-title {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin: 0 0 1rem;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .65rem;
  color: rgba(255,255,255,.36);
}

.expert-review-panel-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,.08);
}

.expert-review-stack { display: grid; gap: .85rem; }

.expert-review-finding {
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  background: rgba(255,255,255,.03);
  padding: 1rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .8rem;
  align-items: start;
}

.expert-review-finding-icon {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: .9rem;
  font-weight: 700;
  margin-top: .05rem;
}

.expert-review-finding--agree .expert-review-finding-icon {
  color: #4ade80;
  background: rgba(74,222,128,.1);
  border: 1px solid rgba(74,222,128,.2);
}

.expert-review-finding--caution .expert-review-finding-icon {
  color: #f59e0b;
  background: rgba(245,158,11,.1);
  border: 1px solid rgba(245,158,11,.2);
}

.expert-review-finding-title {
  margin: 0 0 .28rem;
  font-size: .92rem;
  font-weight: 500;
  color: rgba(255,255,255,.92);
}

.expert-review-finding-text {
  margin: 0;
  color: rgba(255,255,255,.54);
  font-size: .83rem;
  line-height: 1.68;
}

.expert-review-verdict {
  border-radius: 24px;
  padding: 1.5rem;
  background: rgba(177,4,200,.08);
  border: 1px solid rgba(177,4,200,.22);
  margin-bottom: 1.75rem;
}

.expert-review-verdict-label {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .65rem;
  color: var(--accent-light);
  margin-bottom: .75rem;
}

.expert-review-verdict-text {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.8;
  color: rgba(255,255,255,.78);
  font-style: normal;
}

.expert-review-details {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 1.2rem;
}

.expert-review-details-summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: .8rem;
  font-family: var(--serif);
  font-size: var(--type-scale-detail);
  font-weight: 700;
  color: white;
}

.expert-review-details-summary::-webkit-details-marker { display: none; }

.expert-review-details-toggle {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  display: grid;
  place-items: center;
  background: rgba(255,255,255,.04);
  flex-shrink: 0;
  color: rgba(255,255,255,.8);
}

.expert-review-details[open] .expert-review-details-toggle::before { content: '-'; }
.expert-review-details:not([open]) .expert-review-details-toggle::before { content: '+'; }

.expert-review-stepper {
  margin-top: 1rem;
  border-radius: 24px;
  padding: 1.4rem;
}

.expert-review-stepper-top,
.expert-review-stepper-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.expert-review-stepper-top { margin-bottom: 1rem; }
.expert-review-stepper-toolbar { margin-bottom: 1rem; }

.expert-review-stepper-meta {
  font-family: var(--mono);
  font-size: .64rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.36);
}

.expert-review-progress {
  width: 220px;
  max-width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  overflow: hidden;
}

.expert-review-progress-bar {
  height: 100%;
  width: 8.333%;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: inherit;
  transition: width .25s ease;
}

.expert-review-nav-group {
  display: flex;
  align-items: center;
  gap: .55rem;
}

.expert-review-nav-btn {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  color: white;
  font-size: 1.15rem;
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.expert-review-nav-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(177,4,200,.35);
  background: rgba(177,4,200,.1);
}

.expert-review-nav-btn:disabled {
  opacity: .45;
  cursor: not-allowed;
  transform: none;
}

.expert-review-dots {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

.stepper-dot-btn {
  width: 12px;
  height: 12px;
  padding: 0;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.08);
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}

.stepper-dot-btn.active {
  background: var(--accent-light);
  border-color: var(--accent-light);
  transform: scale(1.08);
}

.expert-review-question {
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 20px;
  padding: 1.2rem;
  background: rgba(255,255,255,.02);
}

.expert-review-question-title {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-size: var(--type-scale-detail);
  line-height: 1.25;
  color: rgba(255,255,255,.95);
}

.expert-review-answer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .9rem;
  margin-bottom: 1rem;
}

.expert-review-answer-card {
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
  padding: 1rem;
}

.expert-review-answer-label {
  margin: 0 0 .55rem;
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.expert-review-answer-label--siefert { color: var(--expert-siefert); }
.expert-review-answer-label--end { color: var(--sky); }

.expert-review-answer-text {
  margin: 0;
  color: rgba(255,255,255,.58);
  line-height: 1.75;
  font-size: .86rem;
}

.expert-review-conclusion {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 1rem;
}

.expert-review-conclusion-label {
  margin: 0 0 .4rem;
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-light);
}

.expert-review-conclusion-text {
  margin: 0;
  color: rgba(255,255,255,.74);
  line-height: 1.75;
  font-size: .9rem;
}

/* Reflection */
.reflection-section { background:var(--ink); }
.outcome-two { display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;margin-bottom:3rem; }
.wins-card { background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:2rem; }
.wc-label { font-family:var(--mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-light);margin-bottom:1.25rem; }
.win-list { list-style:none;display:flex;flex-direction:column;gap:.7rem; }
.win-list li { font-size:.875rem;color:rgba(255,255,255,.6);display:flex;align-items:flex-start;gap:.75rem;line-height:1.65; }
.win-list li::before {
  content:'';
  width:.42rem;
  height:.42rem;
  margin-top:.52rem;
  border-radius:50%;
  background:var(--accent-light);
  flex-shrink:0;
}
.challenge-card { background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:2rem; }
.ch-label { font-family:var(--mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.25);margin-bottom:1rem; }
.ch-text { font-size:.875rem;color:rgba(255,255,255,.42);line-height:1.8; }

.reflection-quote { font-family:var(--serif);font-size:1.2rem;color:rgba(255,255,255,.65);line-height:1.65;border-left:3px solid var(--accent);padding-left:1.75rem;max-width:820px; }

/* Next / Footer */
.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:normal;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); }
footer { background:var(--ink);padding:2.5rem 4rem;display:flex;align-items:center;justify-content:space-between;border-top:1px solid rgba(255,255,255,.06); }
.footer-logo { font-family:var(--serif);font-size:1rem;font-weight:700;color:white;text-decoration:none; }
.footer-links { display:flex;gap:2rem; }
.footer-links a { font-size:.78rem;color:rgba(255,255,255,.4);text-decoration:none;transition:color .2s; }
.footer-links a:hover { color:var(--accent-light); }
.footer-copy { font-family:var(--mono);font-size:.7rem;color:rgba(255,255,255,.22); }

/* Reveal */
.reveal { opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease; }
.reveal.visible { opacity:1;transform:translateY(0); }
.rd1{transition-delay:.1s;}.rd2{transition-delay:.2s;}.rd3{transition-delay:.3s;}.rd4{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} }
@keyframes pulse   { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(.85)} }

@media(max-width:1200px){
  .hero-visual{min-height:540px;}
  .hero-image-stack{max-width:460px;height:540px;}
  .hero-stack-img-left,
  .hero-stack-img-right{width:205px;}
  .hero-stack-img-center{width:195px;left:165px;}
  .hero-stack-img-right{top:185px;}
}

@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;}
  #finaldesign .screen-gallery,
  #finaldesign .wide-screen-row{
    width:calc(100vw - 3rem);
    margin-left:calc(50% - 50vw + 1.5rem);
    margin-right:calc(50% - 50vw + 1.5rem);
  }
  #solution .feature-card,
  #finaldesign .screen-card{width:100%;}
  .stats-strip,.method-strip{grid-template-columns:1fr 1fr;}
  .two-col,.outcome-two,.eval-two,.expert-review-grid,.expert-review-answer-grid,.wide-screen-row,.research-imgs{grid-template-columns:1fr;gap:2rem;}
  .three-col,.insight-grid,.theory-row,.feature-grid,.screen-gallery{grid-template-columns:1fr;}
  .usability-results-grid{grid-template-columns:1fr;}
  .sus-vader-grid{grid-template-columns:1fr;}
  .qualitative-results-grid,.qualitative-card-columns{grid-template-columns:1fr;}
  .results-summary-metrics,.results-chart-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .iter-body{grid-template-columns:1fr;}
  .iter-version:first-child{border-right:none;border-bottom:1px solid rgba(255,255,255,.08);}
  .iter-version:last-child{border-left:none;border-top:1px solid rgba(255,255,255,.08);}
  .iter-arrow{flex-direction:row;padding:1rem 2rem;border-top:1px solid rgba(255,255,255,.08);}
  .iter-arrow-label{writing-mode:horizontal-tb;transform:none;}
  .il-grid{grid-template-columns:1fr;gap:1.5rem;}
  .avatar-row{grid-template-columns:1fr 1fr;}
  .symptom-grid{grid-template-columns:1fr;}
  .process-nav{padding:0 1.5rem;top:61px;}
  .next-bar{flex-direction:column;align-items:flex-start;gap:2rem;}
  .ethics-banner{flex-direction:column;}
  .expert-review-stepper-top,.expert-review-stepper-toolbar{align-items:flex-start;}
  .usability-panel-head{min-height:auto;}
  .qualitative-round-head{align-items:flex-start;flex-direction:column;}
  .results-chart{height:auto;}
  .results-bar-track{max-width:none;}
  .results-chart-footnote{margin-left:0;}
}

@media(max-width:640px){
  :root { --process-nav-anchor-offset: 136px; }
  .usability-results-card-head,.usability-results-grid{padding:1.1rem;}
  .usability-results-foot{padding:1rem 1.1rem;align-items:flex-start;}
  .sus-vader-card-head,.sus-vader-grid{padding:1.1rem;}
  .sus-vader-foot{padding:1rem 1.1rem;align-items:flex-start;}
  .sus-vader-panel-head{padding-left:3.75rem;}
  .qualitative-round-head,.qualitative-card-columns{padding:1.1rem;}
  .qualitative-method{padding:1rem 1.1rem 0;}
  .qualitative-round-foot{padding:1rem 1.1rem;align-items:flex-start;}
  .iter-header,.iter-version,.iter-outcome,.iter-learning{padding:1.25rem;}
  .iter-header{align-items:flex-start;gap:1rem;}
  .iter-outcome{flex-direction:column;gap:.6rem;}
  .iterations-intro{margin-bottom:2.5rem;}
  .results-summary-card{padding:1.1rem;}
  .results-summary-metrics{grid-template-columns:1fr;}
  .results-chart-grid{grid-template-columns:1fr;gap:1rem;}
  .results-bar-item{align-items:flex-start;}
  .results-bar-track{height:120px;}
  .expert-review-hero,.expert-review-panel,.expert-review-stepper,.expert-review-verdict{padding:1.1rem;}
  .expert-review-nav-btn{width:40px;height:40px;}
}

@media(max-width:900px){
  .nav-links{background:rgba(250,248,251,0.95);border:1px solid var(--rule);box-shadow:0 16px 40px rgba(14,11,18,0.12);}
}

/* new stuff */
/* ─── TOKENS ──────────────────────────────────────────────────── */
:root {
  --accent:      #B104C8;
  --accent-lt:   #d44ae6;
  --accent-dim:  rgba(177,4,200,.08);
  --ink:         #0f0f1a;
  --ink-md:      #2e2a45;
  --ink-muted:   #5a5575;
  --paper:       #f9f8f6;
  --surface:     #f1eef9;
  --dark:        #07060f;
  --dark-s:      #0f0d1c;
  --dark-b:      rgba(255,255,255,.07);
  --serif:       'Playfair Display', Georgia, serif;
  --sans:        'DM Sans', system-ui, sans-serif;
  --mono:        'DM Mono', 'Courier New', monospace;
  --max:         1280px;
  --r:           12px;
  --coral:       #f43f5e;
  --amber:       #f59e0b;
  --sky:         #0ea5e9;
  --emerald:     #10b981;
  --rose:        #fb7185;
  --violet:      #8b5cf6;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); background: var(--paper); color: var(--ink); -webkit-font-smoothing: antialiased; overflow-x: hidden; }

/* ─── PAGE HEADER ─────────────────────────────────────────────── */
.page-header {
  background: var(--dark);
  padding: 2.5rem 3rem 0;
  position: relative; overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(177,4,200,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(177,4,200,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.ph-inner { max-width: 1160px; margin: 0 auto; position: relative; }
.ph-kicker {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent-lt);
  background: rgba(177,4,200,.1); border: 1px solid rgba(177,4,200,.25);
  display: inline-block; padding: .3rem .8rem; border-radius: 999px;
  margin-bottom: 1rem;
}
.ph-title {
  font-family: var(--serif); font-size: var(--type-scale-page);
  font-weight: 900; color: #fff; line-height: 1.1; margin-bottom: .6rem;
}
.ph-title em { color: var(--accent-lt); font-style: italic; }
.ph-sub {
  font-size: .92rem; color: rgba(255,255,255,.5); max-width: 560px;
  line-height: 1.7; margin-bottom: 2rem;
}

/* ─── TAB NAV ─────────────────────────────────────────────────── */
.tab-nav {
  display: flex; gap: 0; border-top: 1px solid var(--dark-b);
  position: relative;
}
.tab-btn {
  flex: 1; padding: 1rem 1.5rem; border: none; background: transparent;
  font-family: var(--mono); font-size: .65rem; letter-spacing: .1em;
  text-transform: uppercase; color: rgba(255,255,255,.35);
  cursor: pointer; border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s; text-align: center;
  position: relative;
}
.tab-btn::after {
  content: attr(data-n);
  position: absolute; top: 1rem; right: 1.5rem;
  font-size: .5rem; color: rgba(255,255,255,.2);
}
.tab-btn:hover { color: rgba(255,255,255,.7); }
.tab-btn.active { color: #fff; border-bottom-color: var(--accent); }

/* ─── ARTIFACT META BAR ───────────────────────────────────────── */
.artifact-meta {
  background: var(--surface); border-bottom: 1px solid rgba(177,4,200,.1);
  padding: .9rem 3rem;
}
.am-inner {
  max-width: 1160px; margin: 0 auto;
  display: flex; align-items: center; gap: 2.5rem; flex-wrap: wrap;
}
.am-item { display: flex; align-items: center; gap: .5rem; }
.am-label { font-family: var(--mono); font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-muted); }
.am-val { font-size: .8rem; color: var(--ink-md); font-weight: 500; }
.am-badge {
  font-family: var(--mono); font-size: .58rem; letter-spacing: .08em;
  text-transform: uppercase; padding: .22rem .65rem; border-radius: 999px; font-weight: 500;
}
.am-badge.method { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(177,4,200,.2); }
.am-badge.current { background: rgba(244,63,94,.08); color: var(--coral); border: 1px solid rgba(244,63,94,.2); }
.am-badge.future { background: rgba(16,185,129,.08); color: var(--emerald); border: 1px solid rgba(16,185,129,.2); }

/* ─── SECTIONS ────────────────────────────────────────────────── */
.artifact-section { display: none; }
.artifact-section.active { display: block; }
.section-inner { max-width: var(--max); margin: 0 auto; padding: 3rem; }

/* shared headings */
.a-eyebrow { font-family: var(--mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: .4rem; }
.a-headline { font-family: var(--serif); font-size: var(--type-scale-subsection); font-weight: 700; color: var(--ink); margin-bottom: .6rem; line-height: 1.15; }
.a-headline em { color: var(--accent); font-style: italic; }
.a-body { font-size: .9rem; color: var(--ink-muted); line-height: 1.75; max-width: 640px; margin-bottom: 2rem; }

/* ══════════════════════════════════════════════════════════════
   JOURNEY MAP
══════════════════════════════════════════════════════════════ */
#journey { background: var(--paper); }

.persona-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: 2rem;
  margin-bottom: 2rem;
  align-items: start;
}
.journey-intro { min-width: 0; }
.journey-intro .a-body { margin-bottom: 0; }
.journey-intro .a-headline,
.journey-intro .a-body { max-width: 640px; }
.persona-row > * { min-width: 0; }
.persona-card {
  background: var(--dark-s); border: 1px solid var(--dark-b);
  border-radius: var(--r); padding: 1.5rem; position: static; top: auto;
  max-width: none;
}
.pc-avatar {
  width: 52px; height: 52px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-dim), rgba(177,4,200,.15));
  border: 2px solid rgba(177,4,200,.3);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: .85rem;
}
.pc-avatar svg { width: 28px; height: 28px; stroke: var(--accent-lt); fill: none; stroke-width: 1.5; }
.pc-name { font-family: var(--serif); font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: .15rem; }
.pc-tagline { font-family: var(--mono); font-size: .6rem; letter-spacing: .08em; color: var(--accent-lt); text-transform: uppercase; margin-bottom: 1rem; }
.pc-attrs { display: flex; flex-direction: column; gap: .5rem; }
.pc-attr { display: flex; gap: .6rem; align-items: flex-start; }
.pc-attr-l { font-family: var(--mono); font-size: .58rem; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,.25); white-space: nowrap; padding-top: .05rem; }
.pc-attr-v { font-size: .8rem; color: rgba(255,255,255,.6); line-height: 1.5; }
.pc-quote {
  margin-top: 1rem; padding: .85rem 1rem;
  background: rgba(177,4,200,.08); border-left: 2px solid var(--accent);
  border-radius: 0 8px 8px 0;
  font-family: var(--serif); font-size: .82rem;
  color: rgba(255,255,255,.65); line-height: 1.6;
}

.jm-legend {
  display: flex; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 1.5rem;
}
.jml-item { display: flex; align-items: center; gap: .5rem; font-size: .78rem; color: var(--ink-muted); }
.jml-line { width: 28px; height: 3px; border-radius: 2px; }
.jml-line.current { background: var(--coral); }
.jml-line.rewire { background: var(--accent); }
.jml-dot { width: 10px; height: 10px; border-radius: 50%; }
.jml-dot.pain { background: rgba(244,63,94,.3); border: 1.5px solid var(--coral); }
.jml-dot.opp { background: rgba(177,4,200,.2); border: 1.5px solid var(--accent); }

/* Journey Map Grid */
.jm-scroll { width: 100%; max-width: 100%; overflow-x: auto; padding-bottom: 1rem; }
.jm-scroll::-webkit-scrollbar { height: 4px; }
.jm-scroll::-webkit-scrollbar-track { background: rgba(0,0,0,.05); border-radius: 2px; }
.jm-scroll::-webkit-scrollbar-thumb { background: rgba(177,4,200,.3); border-radius: 2px; }

.jm-grid {
  display: grid;
  grid-template-columns: 112px repeat(8, minmax(0, 1fr));
  min-width: 0;
  border: 1px solid rgba(177,4,200,.12);
  border-radius: var(--r); overflow: hidden;
}

/* lane styling */
.jm-lane-header {
  background: var(--dark); border-bottom: 1px solid var(--dark-b);
  font-family: var(--mono); font-size: .58rem; letter-spacing: .1em;
  text-transform: uppercase; color: rgba(255,255,255,.35);
  padding: .7rem .9rem; display: flex; align-items: center;
}
.jm-stage-header {
  background: var(--dark); border-bottom: 1px solid var(--dark-b);
  border-left: 1px solid var(--dark-b);
  padding: .7rem .9rem; text-align: center;
}
.sh-n { font-family: var(--mono); font-size: .55rem; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-lt); margin-bottom: .25rem; }
.sh-title { font-family: var(--serif); font-size: .88rem; font-weight: 700; color: #fff; line-height: 1.2; }
.sh-ctx { font-size: .68rem; color: rgba(255,255,255,.3); margin-top: .2rem; font-style: italic; }

.jm-lane-lbl {
  background: rgba(177,4,200,.04); border-bottom: 1px solid rgba(177,4,200,.08);
  border-right: 1px solid rgba(177,4,200,.1);
  padding: .85rem .9rem;
  display: flex; align-items: flex-start; justify-content: flex-end;
}
.jm-lbl-text {
  font-family: var(--mono); font-size: .58rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-muted); text-align: right;
  writing-mode: horizontal-tb;
}
.jm-cell {
  border-left: 1px solid rgba(177,4,200,.08);
  border-bottom: 1px solid rgba(177,4,200,.08);
  padding: .75rem .85rem;
  background: var(--paper);
  font-size: .78rem; color: var(--ink-muted); line-height: 1.55;
}
.jm-cell.surface { background: var(--surface); }
.jm-cell.dark { background: var(--dark-s); }

/* action bubbles */
.action-tag {
  display: inline-block; background: rgba(177,4,200,.07);
  border: 1px solid rgba(177,4,200,.15); border-radius: 6px;
  padding: .25rem .6rem; font-size: .72rem; color: var(--ink-md);
  font-weight: 500; margin: .15rem .1rem;
}

/* thought quote */
.thought-q {
  color: var(--ink-md); font-family: var(--serif);
  font-size: .8rem; line-height: 1.5;
  border-left: 2px solid rgba(177,4,200,.2); padding-left: .65rem;
}

/* emotion SVG row */
.jm-arc-lbl {
  background: rgba(177,4,200,.04); border-right: 1px solid rgba(177,4,200,.1);
  border-bottom: 1px solid rgba(177,4,200,.08);
  display: flex; align-items: center; justify-content: flex-end; padding: 0 .9rem;
}
.jm-arc-cell {
  grid-column: 2 / -1; border-bottom: 1px solid rgba(177,4,200,.08);
  background: var(--paper); padding: .5rem;
  position: relative;
}
.arc-y-labels {
  position: absolute; left: 0; top: 0; bottom: 0;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 10px 4px;
  font-family: var(--mono); font-size: .5rem; color: rgba(177,4,200,.35); letter-spacing: .04em;
}

/* pain point cell */
.pain-tag {
  display: flex; align-items: flex-start; gap: .4rem;
  margin-bottom: .4rem; font-size: .75rem; color: #c01040; line-height: 1.45;
}
.pain-tag::before { content: '●'; font-size: .45rem; color: var(--coral); flex-shrink: 0; margin-top: .3rem; }
.pain-cell { border-left: 1px solid rgba(244,63,94,.12); border-bottom: 1px solid rgba(244,63,94,.12); background: rgba(244,63,94,.02); padding: .75rem .85rem; }

/* rewire opportunity cell */
.opp-cell { background: var(--accent-dim); border-left: 1px solid rgba(177,4,200,.15); border-bottom: 1px solid rgba(177,4,200,.1); padding: .75rem .85rem; }
.opp-cell.blank { background: rgba(177,4,200,.02); }
.opp-badge {
  font-family: var(--mono); font-size: .58rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent); margin-bottom: .35rem;
  display: block; font-weight: 500;
}
.opp-text { font-size: .76rem; color: var(--ink-md); line-height: 1.5; }

/* ══════════════════════════════════════════════════════════════
   AFFINITY DIAGRAM
══════════════════════════════════════════════════════════════ */
#affinity { background: var(--surface); }

.affinity-intro {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: start;
  margin-bottom: 2rem;
}
.affinity-intro > * { min-width: 0; }
.cluster-count-badge {
  background: var(--dark); color: #fff; border-radius: var(--r);
  padding: 1.25rem 1.5rem; text-align: center; white-space: nowrap;
  flex-shrink: 0;
}
.ccb-n { font-family: var(--serif); font-size: 2rem; font-weight: 900; color: var(--accent-lt); line-height: 1; }
.ccb-l { font-family: var(--mono); font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.35); margin-top: .3rem; }

.affinity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.cluster {
  background: white; border-radius: var(--r); overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.cluster-header {
  padding: .85rem 1.1rem .7rem;
  display: flex; align-items: flex-start; justify-content: space-between;
}
.ch-title { font-family: var(--serif); font-size: .95rem; font-weight: 700; color: var(--ink); line-height: 1.25; }
.ch-count { font-family: var(--mono); font-size: .6rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-muted); margin-top: .1rem; }
.ch-swatch { width: 28px; height: 28px; border-radius: 8px; flex-shrink: 0; margin-left: .5rem; }

.cluster-notes { display: flex; flex-wrap: wrap; gap: .4rem; padding: .4rem 1.1rem 1rem; }
.note {
  display: inline-block; padding: .45rem .75rem;
  border-radius: 6px; font-size: .76rem; line-height: 1.4;
  font-style: italic; position: relative;
}
/* each cluster gets a note color via class */
.cluster-1 .ch-swatch { background: #fef3c7; }
.cluster-1 .note { background: #fef9e7; border: 1px solid #fde68a; color: #78350f; }
.cluster-1 .cluster-header { border-bottom: 3px solid #f59e0b; }

.cluster-2 .ch-swatch { background: #fce7f3; }
.cluster-2 .note { background: #fdf2f8; border: 1px solid #f9a8d4; color: #831843; }
.cluster-2 .cluster-header { border-bottom: 3px solid #ec4899; }

.cluster-3 .ch-swatch { background: #dbeafe; }
.cluster-3 .note { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e3a8a; }
.cluster-3 .cluster-header { border-bottom: 3px solid #3b82f6; }

.cluster-4 .ch-swatch { background: #fee2e2; }
.cluster-4 .note { background: #fff5f5; border: 1px solid #fca5a5; color: #7f1d1d; }
.cluster-4 .cluster-header { border-bottom: 3px solid var(--coral); }

.cluster-5 .ch-swatch { background: #ede9fe; }
.cluster-5 .note { background: #f5f3ff; border: 1px solid #c4b5fd; color: #3b0764; }
.cluster-5 .cluster-header { border-bottom: 3px solid var(--violet); }

.cluster-6 .ch-swatch { background: #d1fae5; }
.cluster-6 .note { background: #f0fdf4; border: 1px solid #6ee7b7; color: #14532d; }
.cluster-6 .cluster-header { border-bottom: 3px solid var(--emerald); }

/* Synthesis callouts */
.synthesis-row {
  border-top: 2px solid rgba(177,4,200,.12); padding-top: 2rem;
}
.synthesis-label {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 1.25rem;
  display: flex; align-items: center; gap: .75rem;
}
.synthesis-label::after { content: ''; flex: 1; height: 1px; background: rgba(177,4,200,.15); }
.synthesis-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.synth-card {
  background: var(--dark); border: 1px solid var(--dark-b);
  border-radius: var(--r); padding: 1.25rem;
  border-left: 3px solid var(--accent);
}
.sc-n { font-family: var(--serif); font-size: 1.6rem; font-weight: 900; color: rgba(177,4,200,.25); line-height: 1; margin-bottom: .5rem; }
.sc-insight { font-family: var(--serif); font-size: .92rem; font-weight: 700; color: #fff; margin-bottom: .4rem; line-height: 1.35; }
.sc-detail { font-size: .78rem; color: rgba(255,255,255,.5); line-height: 1.65; }

/* ══════════════════════════════════════════════════════════════
   COMPETITOR ANALYSIS
══════════════════════════════════════════════════════════════ */
#competitive { background: var(--dark); }
#competitive .a-eyebrow { color: rgba(255,255,255,.35); }
#competitive .a-headline { color: #fff; }
#competitive .a-body { color: rgba(255,255,255,.5); }

.comp-scroll { width: 100%; max-width: 100%; overflow-x: auto; margin-bottom: 3rem; }
.comp-scroll::-webkit-scrollbar { height: 4px; }
.comp-scroll::-webkit-scrollbar-track { background: rgba(255,255,255,.05); }
.comp-scroll::-webkit-scrollbar-thumb { background: rgba(177,4,200,.4); border-radius: 2px; }

.comp-table {
  width: 100%; min-width: 1060px; border-collapse: collapse;
  border: 1px solid var(--dark-b); border-radius: var(--r); overflow: hidden;
}
.comp-table th {
  background: rgba(255,255,255,.04);
  font-family: var(--mono); font-size: .58rem; letter-spacing: .1em;
  text-transform: uppercase; color: rgba(255,255,255,.3);
  padding: .85rem 1rem; text-align: left; white-space: nowrap;
  border-bottom: 1px solid var(--dark-b);
}
.comp-table th:first-child { padding-left: 1.25rem; min-width: 160px; }
.comp-table td {
  padding: .85rem 1rem; border-bottom: 1px solid var(--dark-b);
  vertical-align: middle; font-size: .82rem; color: rgba(255,255,255,.6);
}
.comp-table td:first-child { font-weight: 600; color: rgba(255,255,255,.85); padding-left: 1.25rem; }
.comp-table tr:last-child td { border-bottom: none; }
.comp-table tr.rewire-row td {
  background: rgba(177,4,200,.07);
  border-top: 1px solid rgba(177,4,200,.25);
  border-bottom: 1px solid rgba(177,4,200,.25);
}
.comp-table tr.rewire-row td:first-child { color: var(--accent-lt); }

/* Dot ratings */
.dots { display: flex; gap: 3px; align-items: center; }
.dot { width: 9px; height: 9px; border-radius: 50%; }
.dot.filled { background: var(--accent-lt); }
.dot.empty { background: rgba(255,255,255,.12); }
.rewire-row .dot.filled { background: var(--accent-lt); box-shadow: 0 0 6px rgba(177,4,200,.4); }

/* Timing badges */
.timing-badges { display: flex; gap: .35rem; flex-wrap: wrap; }
.tbadge {
  font-family: var(--mono); font-size: .52rem; letter-spacing: .06em;
  text-transform: uppercase; padding: .18rem .5rem; border-radius: 999px;
  font-weight: 500; border: 1px solid;
}
.tbadge.pre { color: #fcd34d; border-color: rgba(252,211,77,.3); background: rgba(252,211,77,.07); }
.tbadge.mid { color: #6ee7b7; border-color: rgba(110,231,183,.3); background: rgba(110,231,183,.07); }
.tbadge.post { color: #93c5fd; border-color: rgba(147,197,253,.3); background: rgba(147,197,253,.07); }
.tbadge.none { color: rgba(255,255,255,.3); border-color: rgba(255,255,255,.1); background: transparent; }

/* Friction pill */
.friction-pill {
  font-family: var(--mono); font-size: .6rem; letter-spacing: .06em;
  text-transform: uppercase; padding: .2rem .7rem; border-radius: 999px;
  font-weight: 500; display: inline-block;
}
.friction-pill.hard { background: rgba(244,63,94,.12); color: #f43f5e; border: 1px solid rgba(244,63,94,.2); }
.friction-pill.soft { background: rgba(234,179,8,.1); color: #ca8a04; border: 1px solid rgba(234,179,8,.2); }
.friction-pill.adaptive { background: rgba(177,4,200,.12); color: var(--accent-lt); border: 1px solid rgba(177,4,200,.25); }
.friction-pill.none { background: rgba(255,255,255,.04); color: rgba(255,255,255,.3); border: 1px solid rgba(255,255,255,.08); }

/* Check / X */
.check { color: #4ade80; font-size: .9rem; font-weight: 700; }
.cross { color: rgba(244,63,94,.6); font-size: .9rem; }
.partial { color: rgba(252,211,77,.6); font-size: .8rem; }

/* Positioning map */
.positioning-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 2rem; align-items: start;
}
.positioning-layout > * { min-width: 0; }
.pos-map-wrap {
  background: rgba(255,255,255,.03); border: 1px solid var(--dark-b);
  border-radius: var(--r); padding: 2rem; position: relative;
}
.pos-map-title {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .12em;
  text-transform: uppercase; color: rgba(255,255,255,.3); margin-bottom: 1.5rem;
  text-align: center;
}
.pos-map {
  position: relative; width: min(100%, 560px); aspect-ratio: 1;
  margin: 0 auto;
}
.pos-axes {
  position: absolute; inset: 0;
}
.pos-axes line { stroke: rgba(255,255,255,.1); stroke-width: 1; }
.pos-axes .axis-center { stroke: rgba(255,255,255,.15); stroke-dasharray: none; }
.axis-label {
  font-family: var(--mono); font-size: .58rem; letter-spacing: .08em;
  fill: rgba(255,255,255,.3); text-transform: uppercase;
}
.quadrant-label {
  font-family: var(--mono); font-size: .52rem; letter-spacing: .06em;
  fill: rgba(255,255,255,.12); text-transform: uppercase;
}

.pos-dot {
  position: absolute; transform: translate(-50%, -50%);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  z-index: 2;
}
.pos-dot-circle {
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .55rem; font-weight: 700; font-family: var(--mono);
  color: #fff; border: 1.5px solid; transition: transform .2s;
  cursor: default;
}
.pos-dot-circle:hover { transform: scale(1.2); }
.pos-dot-label {
  font-family: var(--mono); font-size: .52rem; letter-spacing: .04em;
  color: rgba(255,255,255,.5); white-space: nowrap;
}
.pos-dot.rewire .pos-dot-circle {
  background: var(--accent); border-color: var(--accent-lt);
  box-shadow: 0 0 20px rgba(177,4,200,.5); width: 36px; height: 36px; font-size: .7rem;
}
.pos-dot.rewire .pos-dot-label { color: var(--accent-lt); font-weight: 500; }

/* Gap callout cards */
.gap-cards { display: flex; flex-direction: column; gap: 1rem; }
.gap-card {
  background: rgba(255,255,255,.03); border: 1px solid var(--dark-b);
  border-radius: var(--r); padding: 1.25rem;
}
.gap-card.highlight { background: rgba(177,4,200,.07); border-color: rgba(177,4,200,.25); }
.gc-label { font-family: var(--mono); font-size: .58rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.3); margin-bottom: .5rem; }
.gc-label.accent { color: var(--accent-lt); }
.gc-title { font-family: var(--serif); font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: .35rem; line-height: 1.3; }
.gc-body { font-size: .78rem; color: rgba(255,255,255,.5); line-height: 1.65; }

/* Strategic differentiators list */
.diff-list { margin-top: 2.5rem; }
.diff-label {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 1rem;
  display: flex; align-items: center; gap: .75rem;
}
.diff-label::after { content: ''; flex: 1; height: 1px; background: rgba(177,4,200,.2); }
.diff-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.diff-card {
  background: rgba(255,255,255,.03); border: 1px solid var(--dark-b);
  border-radius: var(--r); padding: 1.1rem;
  border-top: 2px solid var(--accent);
}
.dc-label { font-family: var(--mono); font-size: .58rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-lt); margin-bottom: .35rem; }
.dc-val { font-family: var(--serif); font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: .25rem; line-height: 1.2; }
.dc-sub { font-size: .72rem; color: rgba(255,255,255,.35); line-height: 1.5; }

/* Dark-theme contrast pass */
:root {
  --dark-text-body: rgba(255,255,255,.72);
  --dark-text-caption: rgba(255,255,255,.58);
  --dark-text-label: rgba(255,255,255,.5);
  --dark-text-faint: rgba(255,255,255,.34);
}

.hero-tagline,
.dark-section .body-text,
.results-summary-section .body-text,
.ph-sub,
.ic-body,
.eb-body,
.sc-detail,
#competitive .a-body,
.gc-body,
.pc-attr-v,
.pc-quote,
.comp-table td,
.win-list li,
.ch-text,
.reflection-quote,
.expert-review-summary,
.expert-review-finding-text,
.expert-review-answer-text {
  color: var(--dark-text-body);
}

.btn-ghost-light,
.screen-desc,
.ws-desc,
.vp-label,
.vp-note,
.results-metric-label,
.results-metric-sub,
.results-metric-variance,
.results-effect-label,
.results-effect-name,
.results-bar-label,
.results-legend-item,
.results-chart-footnote {
  color: var(--dark-text-caption);
}

.meta-label,
.stat-lbl,
.pnav-item,
.screen-lbl,
.ws-lbl,
.usability-results-kicker,
.sus-vader-kicker,
.results-summary-kicker,
.tab-btn,
.pc-attr-l,
.jm-lane-header,
.sh-ctx,
.ccb-l,
#competitive .a-eyebrow,
.comp-table th,
.pos-map-title,
.pos-dot-label,
.gc-label,
.dc-sub,
.ch-label,
.next-label,
.footer-links a,
.footer-copy,
.expert-review-panel-title,
.expert-review-stepper-meta {
  color: var(--dark-text-label);
}

.axis-label {
  fill: var(--dark-text-label);
}

.results-summary-section .results-summary-intro {
  color: var(--muted);
}

.tab-btn::after {
  color: var(--dark-text-faint);
}

.quadrant-label {
  fill: var(--dark-text-faint);
}

/* ─── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width:1000px) {
  .section-inner { padding: 2rem 1.5rem; }
  .persona-row { grid-template-columns: 1fr; gap: 1.5rem; }
  .journey-intro .a-headline,
  .journey-intro .a-body { max-width: none; }
  .jm-grid {
    grid-template-columns: 112px repeat(8, minmax(140px, 1fr));
    min-width: 1232px;
  }
  .affinity-grid { grid-template-columns: 1fr 1fr; }
  .synthesis-cards { grid-template-columns: 1fr; }
  .positioning-layout { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr 1fr; }
  .tab-btn::after { display: none; }
}
@media (max-width:640px) {
  .page-header { padding: 2rem 1.25rem 0; }
  .tab-btn { padding: .85rem .75rem; font-size: .55rem; }
  .affinity-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .affinity-intro { grid-template-columns: 1fr; }
}