/* =========================================================
   Signal from Noise — design system
   Dark-first; light mode via OS preference or the toggle.
   ========================================================= */

:root {
  color-scheme: dark;
  --bg: #0A0E17;
  --bg-raised: #0E1320;
  --surface: #111827;
  --surface-2: #151D2E;
  --line: #1F2937;
  --line-strong: #2B3647;
  --text: #E8ECF3;
  --text-2: #B6C0CF;
  --muted: #94A3B8;
  --signal: #22D3C5;
  --signal-soft: rgba(34, 211, 197, 0.12);
  --decision: #F5B544;
  --decision-soft: rgba(245, 181, 68, 0.14);
  --risk: #FF6B6B;
  --risk-soft: rgba(255, 107, 107, 0.14);
  --on-accent: #06201E;

  /* chart series — validated (dataviz validator, dark surface #111827) */
  --s1: #14A89C;
  --s2: #BC8019;
  --s3: #8B72E8;
  --s4: #E05656;
  --s5: #3B82F6;
  /* sequential teal ramp (light → dark on light bg; reversed intent on dark) */
  --q1: #123B3B; --q2: #145A57; --q3: #137C76; --q4: #15A094; --q5: #3FD1C2;

  --grid: rgba(148, 163, 184, 0.14);
  --glow: 0 0 0 1px rgba(34, 211, 197, 0.25), 0 20px 60px -20px rgba(34, 211, 197, 0.35);
  --shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.7);

  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius: 18px;
  --radius-sm: 10px;
  --max: 1200px;
  --gutter: 16px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #F7F6F2;
    --bg-raised: #F1EFE9;
    --surface: #FFFFFF;
    --surface-2: #F4F3EE;
    --line: #E4E1D8;
    --line-strong: #D3CFC3;
    --text: #0F172A;
    --text-2: #334155;
    --muted: #5B6474;
    --signal: #0B7F77;
    --signal-soft: rgba(11, 127, 119, 0.10);
    --decision: #9A6411;
    --decision-soft: rgba(183, 121, 31, 0.13);
    --risk: #C23B3B;
    --risk-soft: rgba(194, 59, 59, 0.10);
    --on-accent: #FFFFFF;
    --s1: #00918A; --s2: #B7791F; --s3: #6D55D6; --s4: #D14545; --s5: #2563EB;
    --q1: #D5F0EC; --q2: #9EDDD5; --q3: #5CC2B7; --q4: #1E9C91; --q5: #0B6E67;
    --grid: rgba(15, 23, 42, 0.08);
    --glow: 0 0 0 1px rgba(11, 127, 119, 0.25), 0 20px 50px -24px rgba(11, 127, 119, 0.35);
    --shadow: 0 24px 50px -30px rgba(15, 23, 42, 0.25);
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #F7F6F2;
  --bg-raised: #F1EFE9;
  --surface: #FFFFFF;
  --surface-2: #F4F3EE;
  --line: #E4E1D8;
  --line-strong: #D3CFC3;
  --text: #0F172A;
  --text-2: #334155;
  --muted: #5B6474;
  --signal: #0B7F77;
  --signal-soft: rgba(11, 127, 119, 0.10);
  --decision: #9A6411;
  --decision-soft: rgba(183, 121, 31, 0.13);
  --risk: #C23B3B;
  --risk-soft: rgba(194, 59, 59, 0.10);
  --on-accent: #FFFFFF;
  --s1: #00918A; --s2: #B7791F; --s3: #6D55D6; --s4: #D14545; --s5: #2563EB;
  --q1: #D5F0EC; --q2: #9EDDD5; --q3: #5CC2B7; --q4: #1E9C91; --q5: #0B6E67;
  --grid: rgba(15, 23, 42, 0.08);
  --glow: 0 0 0 1px rgba(11, 127, 119, 0.25), 0 20px 50px -24px rgba(11, 127, 119, 0.35);
  --shadow: 0 24px 50px -30px rgba(15, 23, 42, 0.25);
}

@media (min-width: 720px) { :root { --gutter: 32px; } }

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, canvas, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--signal); color: var(--on-accent); }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 6px; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 200;
  background: var(--signal); color: var(--on-accent);
  padding: 10px 16px; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 12px; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; line-height: 1.1; letter-spacing: -0.015em; font-variation-settings: "opsz" 96; }
h1 { font-size: clamp(2.5rem, 6.4vw, 5rem); }
h2 { font-size: clamp(2rem, 4.4vw, 3.25rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); font-variation-settings: "opsz" 36; }
p { color: var(--text-2); }
strong { color: var(--text); font-weight: 600; }
em.accent, .accent { font-style: italic; color: var(--signal); }
.decision-text { color: var(--decision); }

.mono, .eyebrow, .chip, .kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.eyebrow { color: var(--signal); display: inline-flex; align-items: center; gap: 10px; }
.eyebrow::before { content: ""; width: 24px; height: 1px; background: currentColor; }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px; border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--text-2); background: var(--surface);
  font-size: 0.68rem;
}
.chip.signal { color: var(--signal); border-color: color-mix(in srgb, var(--signal) 40%, transparent); background: var(--signal-soft); }
.chip.decision { color: var(--decision); border-color: color-mix(in srgb, var(--decision) 40%, transparent); background: var(--decision-soft); }
.chip.risk { color: var(--risk); border-color: color-mix(in srgb, var(--risk) 40%, transparent); background: var(--risk-soft); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem;
  transition: transform .25s var(--ease), background .25s, box-shadow .25s, border-color .25s;
}
.btn .arrow { transition: transform .25s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn-primary { background: var(--signal); color: var(--on-accent); box-shadow: var(--glow); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--text); }
.btn-ghost:hover { border-color: var(--signal); color: var(--signal); }
.link-arrow { color: var(--signal); font-weight: 600; display: inline-flex; gap: 8px; align-items: center; }
.link-arrow:hover .arrow { transform: translateX(4px); }
.link-arrow .arrow { transition: transform .25s var(--ease); }

/* ---------- nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 600; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  display: grid; place-items: center;
  font-family: var(--font-display); font-size: 1.05rem; font-style: italic;
  background: linear-gradient(135deg, var(--signal), color-mix(in srgb, var(--signal) 40%, var(--decision)));
  color: var(--on-accent);
}
.brand-name { font-size: 0.95rem; letter-spacing: -0.01em; }
.brand-name small { display: block; font-family: var(--font-mono); font-size: 0.62rem; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; font-weight: 400; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { padding: 8px 12px; border-radius: 999px; font-size: 0.9rem; color: var(--text-2); transition: color .2s, background .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--surface-2); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.nav-cta { padding: 10px 18px; font-size: 0.88rem; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 999px;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong); color: var(--text-2);
  transition: color .2s, border-color .2s;
}
.icon-btn:hover { color: var(--signal); border-color: var(--signal); }
.icon-btn svg { width: 18px; height: 18px; }
.theme-toggle .sun { display: none; }
:root[data-theme="light"] .theme-toggle .sun { display: block; }
:root[data-theme="light"] .theme-toggle .moon { display: none; }
.menu-btn { display: none; }

@media (max-width: 960px) {
  .nav-links {
    position: fixed; inset: 72px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px var(--gutter) 24px;
    background: var(--bg); border-bottom: 1px solid var(--line);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity .25s, transform .25s var(--ease);
  }
  .nav-links.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links a { padding: 14px 8px; border-radius: 0; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .menu-btn { display: grid; }
  .nav-cta { display: none; }
}

/* ---------- sections ---------- */
section { position: relative; }
.section { padding: clamp(80px, 11vw, 140px) 0; }
.section-alt { background: var(--bg-raised); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 64px); }
.section-head h2 { margin: 16px 0 18px; }
.section-head p { font-size: 1.1rem; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow::before { display: none; }

/* ---------- hero ---------- */
.hero { min-height: 100svh; display: flex; align-items: center; padding: 120px 0 64px; overflow: hidden; }
.hero-canvas-wrap { position: absolute; inset: 0; z-index: 0; }
.hero-canvas-wrap canvas, .hero-canvas-wrap svg { width: 100%; height: 100%; }
.hero-canvas-wrap::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 88%, transparent) 38%, transparent 70%),
    linear-gradient(0deg, var(--bg) 0%, transparent 25%);
  pointer-events: none;
}
@media (max-width: 900px) {
  .hero-canvas-wrap { opacity: .4; }
  .hero-canvas-wrap::after { background: linear-gradient(0deg, var(--bg) 5%, color-mix(in srgb, var(--bg) 70%, transparent) 60%, color-mix(in srgb, var(--bg) 50%, transparent) 100%); }
}
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 720px; }
.hero-kicker { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 28px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 0 var(--signal); animation: ping 2.4s infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--signal) 60%, transparent); } 80%, 100% { box-shadow: 0 0 0 10px transparent; } }
.hero h1 { margin-bottom: 26px; }
.hero h1 .line { display: block; }
.hero-lede { font-size: clamp(1.05rem, 1.6vw, 1.25rem); max-width: 600px; margin-bottom: 36px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 56px; }
.phase-indicator { display: flex; gap: 18px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.phase-indicator span { display: inline-flex; gap: 8px; align-items: center; transition: color .4s; }
.phase-indicator span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--line-strong); transition: background .4s; }
.phase-indicator span.on { color: var(--text); }
.phase-indicator span.on::before { background: var(--signal); }
.phase-indicator span.on[data-phase="2"]::before { background: var(--decision); }

/* proof ribbon */
.proof { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-raised); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-item { padding: 32px 24px; border-left: 1px solid var(--line); }
.proof-item:first-child { border-left: 0; padding-left: 0; }
.proof-num { font-family: var(--font-display); font-size: clamp(2.2rem, 4vw, 3.2rem); line-height: 1; color: var(--text); font-variation-settings: "opsz" 96; }
.proof-num sup { font-size: 0.4em; color: var(--decision); vertical-align: super; margin-left: 2px; }
.proof-label { margin-top: 10px; font-size: 0.92rem; color: var(--text-2); }
.proof-note { padding: 0 0 18px; font-size: 0.78rem; color: var(--muted); }
@media (max-width: 800px) {
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .proof-item { padding: 24px 16px; }
  .proof-item:nth-child(odd) { border-left: 0; padding-left: 0; }
  .proof-item:nth-child(n+3) { border-top: 1px solid var(--line); }
}

/* ---------- questions ---------- */
.questions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 1000px) { .questions-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .questions-grid { grid-template-columns: 1fr; } }
.q-card {
  position: relative; display: flex; flex-direction: column; gap: 18px;
  padding: 28px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  transition: border-color .3s, transform .3s var(--ease), box-shadow .3s;
  min-height: 300px; overflow: hidden;
}
.q-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px 200px at var(--mx, 50%) var(--my, 0%), var(--signal-soft), transparent 70%);
  opacity: 0; transition: opacity .3s; pointer-events: none;
}
.q-card:hover { border-color: color-mix(in srgb, var(--signal) 45%, var(--line)); transform: translateY(-4px); box-shadow: var(--shadow); }
.q-card:hover::before { opacity: 1; }
.q-num { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); }
.q-card h3 { font-size: 1.45rem; }
.q-card h3 .qmark { color: var(--decision); }
.q-answer { font-size: 0.95rem; }
.q-meta { margin-top: auto; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-top: 16px; border-top: 1px dashed var(--line-strong); }
.q-meta .link-arrow { font-size: 0.88rem; }

/* ---------- work bento ---------- */
.work-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.work-card {
  grid-column: span 3; position: relative; display: flex; flex-direction: column;
  border-radius: var(--radius); overflow: hidden;
  background: var(--surface); border: 1px solid var(--line);
  transition: border-color .3s, transform .3s var(--ease), box-shadow .3s;
}
.work-card.feature { grid-column: span 6; flex-direction: row; }
.work-card.third { grid-column: span 2; }
.work-card:hover { border-color: color-mix(in srgb, var(--signal) 45%, var(--line)); transform: translateY(-4px); box-shadow: var(--shadow); }
.work-visual { position: relative; aspect-ratio: 16 / 9; background: var(--surface-2); border-bottom: 1px solid var(--line); overflow: hidden; }
.work-card.feature .work-visual { aspect-ratio: auto; flex: 1.1; border-bottom: 0; border-right: 1px solid var(--line); min-height: 320px; }
.work-visual svg { width: 100%; height: 100%; }
.work-body { padding: 26px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.work-card.feature .work-body { padding: 40px; justify-content: center; }
.work-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.work-card h3 { font-size: 1.5rem; }
.work-card.feature h3 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
.work-metric { display: flex; gap: 12px; align-items: baseline; padding: 14px 0; border-top: 1px solid var(--line); margin-top: auto; }
.work-metric b { font-family: var(--font-display); font-weight: 500; font-size: 1.7rem; color: var(--decision); line-height: 1; white-space: nowrap; }
.work-metric span { font-size: 0.88rem; color: var(--text-2); }
@media (max-width: 1000px) {
  .work-card, .work-card.third { grid-column: span 3; }
  .work-card.feature { grid-column: span 6; flex-direction: column; }
  .work-card.feature .work-visual { border-right: 0; border-bottom: 1px solid var(--line); min-height: 240px; }
}
@media (max-width: 680px) {
  .work-grid { grid-template-columns: 1fr; }
  .work-card, .work-card.third, .work-card.feature { grid-column: auto; }
  .work-card.feature .work-body { padding: 26px; }
}
/* thumbnail motifs */
.thumb .t-dot { transition: transform .8s var(--ease); transform-box: fill-box; transform-origin: center; }
.work-card:hover .thumb .t-move { transform: translate(var(--tx, 0), var(--ty, 0)); }
.thumb .t-bar { transform-box: fill-box; transform-origin: bottom; transition: transform .8s var(--ease); }
.work-card:hover .thumb .t-grow { transform: scaleY(1.15); }

/* ---------- method ---------- */
.method-rail { display: grid; grid-template-columns: repeat(10, 1fr); gap: 6px; margin-bottom: 20px; }
.method-step {
  position: relative; text-align: left;
  padding: 16px 12px 14px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--line);
  transition: border-color .25s, background .25s;
  min-height: 108px; display: flex; flex-direction: column; gap: 8px;
}
.method-step .n { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); }
.method-step .t { font-size: 0.85rem; font-weight: 600; line-height: 1.3; color: var(--text-2); }
.method-step::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 0; height: 2px; background: var(--signal); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.method-step:hover { border-color: var(--line-strong); }
.method-step[aria-selected="true"] { background: var(--surface-2); border-color: color-mix(in srgb, var(--signal) 50%, var(--line)); }
.method-step[aria-selected="true"] .t { color: var(--text); }
.method-step[aria-selected="true"] .n { color: var(--signal); }
.method-step[aria-selected="true"]::after { transform: scaleX(1); }
.method-step.group-decide[aria-selected="true"] .n { color: var(--decision); }
.method-step.group-decide::after { background: var(--decision); }
.method-panel {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px;
  padding: 32px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  min-height: 230px;
}
.method-panel h3 { font-size: 1.9rem; margin: 10px 0 14px; }
.method-panel .phase-tag { font-family: var(--font-mono); font-size: 0.72rem; color: var(--signal); letter-spacing: 0.08em; text-transform: uppercase; }
.method-panel ul { list-style: none; display: grid; gap: 10px; }
.method-panel li { display: flex; gap: 12px; color: var(--text-2); font-size: 0.95rem; }
.method-panel li::before { content: "→"; color: var(--signal); font-family: var(--font-mono); }
.method-panel .out { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 12px; }
@media (max-width: 1000px) {
  .method-rail { grid-template-columns: repeat(5, 1fr); }
}
@media (max-width: 640px) {
  .method-rail { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; margin-left: calc(var(--gutter) * -1); margin-right: calc(var(--gutter) * -1); padding-left: var(--gutter); padding-right: var(--gutter); }
  .method-step { flex: 0 0 132px; scroll-snap-align: start; }
  .method-panel { grid-template-columns: 1fr; padding: 24px; gap: 20px; }
}

.subhead { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin: 88px 0 28px; flex-wrap: wrap; }
.subhead h3 { font-size: clamp(1.5rem, 2.6vw, 2rem); max-width: 620px; }
.subhead p { max-width: 460px; font-size: 0.98rem; }

/* story arc */
.story-arc { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.arc-step { padding: 24px 20px; border-left: 1px solid var(--line); position: relative; }
.arc-step:first-child { border-left: 0; }
.arc-step .n { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); }
.arc-step h4 { font-size: 1.2rem; margin: 10px 0 8px; }
.arc-step p { font-size: 0.88rem; }
.arc-step:nth-child(n+5) h4 { color: var(--decision); }
.arc-bar { height: 3px; background: linear-gradient(90deg, var(--signal), var(--signal) 55%, var(--decision)); }
@media (max-width: 1000px) { .story-arc { grid-template-columns: repeat(3, 1fr); } .arc-step:nth-child(4) { border-left: 0; } .arc-step:nth-child(n+4) { border-top: 1px solid var(--line); } }
@media (max-width: 560px) { .story-arc { grid-template-columns: 1fr 1fr; } .arc-step:nth-child(odd) { border-left: 0; } .arc-step:nth-child(n+3) { border-top: 1px solid var(--line); } .arc-step:nth-child(4) { border-left: 1px solid var(--line); } }

/* ---------- viz frame (shared) ---------- */
.viz-card {
  position: relative; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  padding: 24px; overflow: hidden;
}
.viz-head { display: flex; justify-content: space-between; align-items: start; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.viz-title { font-family: var(--font-body); font-size: 1rem; font-weight: 600; letter-spacing: 0; line-height: 1.35; color: var(--text); }
.viz-sub { font-size: 0.85rem; color: var(--muted); margin-top: 4px; }
.viz-body { position: relative; }
.viz-body svg { width: 100%; height: auto; overflow: visible; }
.viz-foot { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.synthetic-badge { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.synthetic-badge::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: repeating-linear-gradient(45deg, var(--muted) 0 2px, transparent 2px 4px); }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 0.82rem; color: var(--text-2); }
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.viz-controls { display: flex; flex-wrap: wrap; gap: 6px; }
.seg-btn {
  padding: 7px 12px; border-radius: 999px; font-size: 0.8rem; font-weight: 500;
  border: 1px solid var(--line-strong); color: var(--text-2);
  transition: all .2s;
}
.seg-btn:hover { color: var(--text); border-color: var(--text-2); }
.seg-btn[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.viz-table { margin-top: 10px; }
.viz-table summary { cursor: pointer; font-size: 0.8rem; color: var(--muted); font-family: var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; }
.viz-table summary:hover { color: var(--text); }
.viz-table table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 0.85rem; }
.viz-table th, .viz-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); color: var(--text-2); }
.viz-table th { color: var(--muted); font-weight: 500; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; }
.viz-tip {
  position: absolute; z-index: 20; pointer-events: none;
  padding: 10px 12px; border-radius: 10px;
  background: var(--text); color: var(--bg);
  font-size: 0.8rem; line-height: 1.4; max-width: 240px;
  opacity: 0; transform: translateY(4px); transition: opacity .15s, transform .15s;
  box-shadow: 0 10px 30px -10px rgba(0,0,0,.5);
}
.viz-tip.show { opacity: 1; transform: none; }
.viz-tip b { display: block; font-weight: 600; margin-bottom: 2px; }
.axis-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; fill: var(--muted); text-transform: uppercase; }
.svg-label { font-family: var(--font-body); font-size: 12px; fill: var(--text-2); }
.svg-label-strong { font-family: var(--font-body); font-size: 12.5px; font-weight: 600; fill: var(--text); }
.svg-mono { font-family: var(--font-mono); font-size: 10.5px; fill: var(--muted); letter-spacing: 0.04em; }

/* ---------- QC gates + donut ---------- */
.qc-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: 16px; }
@media (max-width: 900px) { .qc-layout { grid-template-columns: 1fr; } }
.qc-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 18px; }
.qc-list div { padding: 14px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); }
.qc-list b { display: block; font-size: 0.85rem; margin-bottom: 4px; }
.qc-list p { font-size: 0.78rem; line-height: 1.45; }
@media (max-width: 640px) { .qc-list { grid-template-columns: 1fr 1fr; } }

/* ---------- AI ops ---------- */
.ai-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.terminal {
  border-radius: var(--radius); overflow: hidden;
  background: #070A12; border: 1px solid #1c2433;
  color: #d6deeb; box-shadow: var(--shadow);
}
:root[data-theme="light"] .terminal { border-color: #1c2433; }
.term-bar { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid #1c2433; background: #0b101b; gap: 12px; }
.term-dots { display: flex; gap: 6px; }
.term-dots i { width: 10px; height: 10px; border-radius: 50%; background: #2a3445; }
.term-file { font-family: var(--font-mono); font-size: 0.72rem; color: #8a96ab; }
.term-replay { font-family: var(--font-mono); font-size: 0.7rem; color: #8a96ab; padding: 4px 10px; border: 1px solid #2a3445; border-radius: 999px; }
.term-replay:hover { color: #22D3C5; border-color: #22D3C5; }
.term-body { display: grid; grid-template-columns: 260px 1fr; min-height: 440px; }
.term-steps { list-style: none; border-right: 1px solid #1c2433; padding: 16px 0; }
.term-steps li {
  display: flex; gap: 12px; align-items: center;
  padding: 10px 18px; font-size: 0.86rem; color: #6b778c;
  transition: color .3s, background .3s;
  position: relative;
}
.term-steps li .idx { font-family: var(--font-mono); font-size: 0.7rem; width: 22px; height: 22px; display: grid; place-items: center; border-radius: 6px; border: 1px solid #2a3445; transition: all .3s; flex: none; }
.term-steps li.done { color: #b6c0cf; }
.term-steps li.done .idx { background: rgba(34, 211, 197, .12); border-color: rgba(34, 211, 197, .5); color: #22D3C5; }
.term-steps li.active { color: #fff; background: linear-gradient(90deg, rgba(34, 211, 197, .1), transparent); }
.term-steps li.active::before { content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 2px; background: #22D3C5; }
.term-steps li.active .idx { background: #22D3C5; color: #06201E; border-color: #22D3C5; }
.term-steps li.human .idx { border-color: rgba(245, 181, 68, .6); color: #F5B544; }
.term-steps li.human.active .idx { background: #F5B544; color: #1d1405; border-color: #F5B544; }
.term-steps li.human.active::before { background: #F5B544; }
.term-code { height: 460px; overflow-y: auto; scrollbar-width: thin; padding: 20px 24px; font-family: var(--font-mono); font-size: 0.82rem; line-height: 1.75; white-space: pre-wrap; word-break: break-word; position: relative; }
.term-code .c-h { color: #22D3C5; font-weight: 500; }
.term-code .c-k { color: #F5B544; }
.term-code .c-m { color: #6b778c; }
.term-code .c-ok { color: #4ade80; }
.term-code .c-warn { color: #FF6B6B; }
.term-code .c-q { color: #c4b5fd; }
.caret { display: inline-block; width: 8px; height: 1.1em; background: #22D3C5; vertical-align: text-bottom; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.approval {
  display: inline-flex; align-items: center; gap: 10px; margin: 6px 0;
  padding: 8px 14px; border-radius: 10px;
  border: 1px solid rgba(245, 181, 68, .6); background: rgba(245, 181, 68, .1);
  color: #F5B544; font-family: var(--font-body); font-size: 0.82rem; font-weight: 600;
  animation: pulse-amber 1.6s infinite;
}
.approval.ok { animation: none; border-color: rgba(74, 222, 128, .6); background: rgba(74, 222, 128, .1); color: #4ade80; }
@keyframes pulse-amber { 0% { box-shadow: 0 0 0 0 rgba(245, 181, 68, .45); } 70%, 100% { box-shadow: 0 0 0 12px rgba(245, 181, 68, 0); } }
@media (max-width: 760px) {
  .term-body { grid-template-columns: 1fr; }
  .term-steps { display: flex; overflow-x: auto; border-right: 0; border-bottom: 1px solid #1c2433; padding: 8px; }
  .term-steps li { flex: none; padding: 8px 12px; }
  .term-steps li .label { display: none; }
  .term-steps li.active .label { display: inline; }
  .term-steps li.active::before { display: none; }
  .term-code { height: 400px; font-size: 0.76rem; padding: 16px; }
}

.ai-row { display: grid; grid-template-columns: 1.3fr 1fr; gap: 16px; }
@media (max-width: 900px) { .ai-row { grid-template-columns: 1fr; } }

.effort { display: grid; gap: 20px; }
.effort-range { width: 100%; accent-color: var(--signal); }
.effort-stops { display: grid; grid-template-columns: repeat(5, 1fr); font-size: 0.72rem; color: var(--muted); gap: 4px; margin-top: 6px; }
.effort-stops span { text-align: center; line-height: 1.3; cursor: pointer; }
.effort-stops span:first-child { text-align: left; }
.effort-stops span:last-child { text-align: right; }
.effort-stops span.on { color: var(--text); font-weight: 600; }
.effort-bars { display: grid; gap: 14px; }
.effort-row .lbl { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--text-2); margin-bottom: 6px; }
.effort-track { position: relative; height: 34px; border-radius: 8px; background: var(--surface-2); overflow: hidden; display: flex; gap: 2px; }
.effort-seg { height: 100%; display: flex; align-items: center; padding: 0 10px; font-size: 0.72rem; font-weight: 600; white-space: nowrap; overflow: hidden; transition: width .7s var(--ease); color: #fff; border-radius: 4px; }
.effort-band { position: absolute; top: 0; bottom: 0; border-left: 1px dashed var(--decision); border-right: 1px dashed var(--decision); background: repeating-linear-gradient(135deg, var(--decision-soft) 0 6px, transparent 6px 12px); transition: left .7s var(--ease), width .7s var(--ease); pointer-events: none; }
.effort-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.effort-detail div { padding: 14px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); }
.effort-detail b { display: block; font-size: 0.72rem; font-family: var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); font-weight: 500; margin-bottom: 6px; }
.effort-detail p { font-size: 0.86rem; line-height: 1.5; }
.method-note { font-size: 0.78rem; color: var(--muted); line-height: 1.5; }
.method-note strong { color: var(--text-2); }

.principles { display: grid; gap: 10px; }
.principle { display: flex; gap: 14px; padding: 16px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); }
.principle .ic { flex: none; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: var(--signal-soft); color: var(--signal); }
.principle .ic svg { width: 18px; height: 18px; }
.principle b { display: block; font-size: 0.92rem; margin-bottom: 2px; }
.principle p { font-size: 0.85rem; line-height: 1.5; }
.roadmap { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }

/* ---------- capabilities ---------- */
.pillars { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.pillar { padding: 26px 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 12px; transition: border-color .3s, transform .3s var(--ease); }
.pillar:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.pillar .n { font-family: var(--font-mono); font-size: 0.7rem; color: var(--signal); }
.pillar h3 { font-size: 1.3rem; }
.pillar p { font-size: 0.9rem; }
@media (max-width: 1100px) { .pillars { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 700px) { .pillars { grid-template-columns: 1fr; } }
.toolbelt { margin-top: 16px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.tool-group { padding: 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.tool-group h4 { font-family: var(--font-mono); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.tool-group ul { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.tool-group li { font-size: 0.82rem; padding: 5px 10px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--line); color: var(--text-2); }
@media (max-width: 1000px) { .toolbelt { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .toolbelt { grid-template-columns: 1fr; } }

/* ---------- sectors ---------- */
.sectors { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.sector { background: var(--surface); padding: 26px 22px; display: flex; flex-direction: column; gap: 12px; min-height: 210px; transition: background .3s; }
.sector:hover { background: var(--surface-2); }
.sector .ic { width: 36px; height: 36px; color: var(--signal); }
.sector h4 { font-family: var(--font-body); font-size: 0.98rem; font-weight: 600; letter-spacing: 0; }
.sector p { font-size: 0.86rem; line-height: 1.5; font-style: italic; }
@media (max-width: 1000px) { .sectors { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .sectors { grid-template-columns: 1fr; } .sector { min-height: 0; } }
.sector-note { margin-top: 16px; font-size: 0.86rem; color: var(--muted); }

/* ---------- career ---------- */
.phases { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; position: relative; }
.phases::before { content: ""; position: absolute; top: 19px; left: 20px; right: 20px; height: 1px; background: linear-gradient(90deg, var(--line-strong), var(--signal), var(--decision)); }
.phase { position: relative; padding-top: 56px; }
.phase .dot { position: absolute; top: 10px; left: 0; width: 20px; height: 20px; border-radius: 50%; background: var(--bg-raised); border: 2px solid var(--signal); }
.phase:last-child .dot { border-color: var(--decision); background: var(--decision); box-shadow: 0 0 0 6px var(--decision-soft); }
.phase .n { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }
.phase h4 { font-size: 1.3rem; margin: 8px 0 10px; }
.phase p { font-size: 0.9rem; }
@media (max-width: 900px) {
  .phases { grid-template-columns: 1fr; gap: 28px; padding-left: 36px; }
  .phases::before { top: 10px; bottom: 10px; left: 9px; right: auto; width: 1px; height: auto; background: linear-gradient(180deg, var(--line-strong), var(--signal), var(--decision)); }
  .phase { padding-top: 0; }
  .phase .dot { left: -36px; top: 4px; }
}
.shift { margin-top: 56px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.shift-row { display: grid; grid-template-columns: 180px 1fr 40px 1fr; align-items: center; gap: 16px; padding: 16px 24px; border-top: 1px solid var(--line); }
.shift-row:first-child { border-top: 0; }
.shift-row.head { background: var(--surface-2); font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.shift-row .dim { font-weight: 600; font-size: 0.9rem; }
.shift-row .from { color: var(--muted); font-size: 0.9rem; }
.shift-row .to { color: var(--text); font-size: 0.9rem; }
.shift-row .arr { color: var(--signal); font-family: var(--font-mono); text-align: center; }
@media (max-width: 760px) {
  .shift-row { grid-template-columns: 1fr; gap: 4px; padding: 16px; }
  .shift-row.head { display: none; }
  .shift-row .arr { display: none; }
  .shift-row .from::before { content: "From: "; font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; }
  .shift-row .to::before { content: "Toward: "; font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; color: var(--signal); }
}

/* ---------- services ---------- */
.services { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (max-width: 860px) { .services { grid-template-columns: 1fr; } }
.service {
  position: relative; padding: 32px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 18px;
  transition: border-color .3s, box-shadow .3s;
}
.service:hover { border-color: color-mix(in srgb, var(--signal) 45%, var(--line)); box-shadow: var(--shadow); }
.service-top { display: flex; justify-content: space-between; align-items: start; gap: 16px; }
.service h3 { font-size: 1.6rem; }
.service .dur { font-family: var(--font-mono); font-size: 0.72rem; color: var(--decision); white-space: nowrap; padding-top: 6px; }
.service .for { font-size: 0.98rem; }
.service-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding-top: 18px; border-top: 1px dashed var(--line-strong); }
.service-cols h4 { font-family: var(--font-mono); font-weight: 500; font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.service-cols ul { list-style: none; display: grid; gap: 7px; }
.service-cols li { font-size: 0.87rem; color: var(--text-2); display: flex; gap: 8px; line-height: 1.45; }
.service-cols li::before { content: "·"; color: var(--signal); font-weight: 700; }
.service .proof-link { margin-top: auto; font-size: 0.85rem; color: var(--muted); }
.service .proof-link a { color: var(--signal); }
@media (max-width: 520px) { .service-cols { grid-template-columns: 1fr; } .service { padding: 24px; } }

/* ---------- evidence standard ---------- */
.evidence { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
@media (max-width: 900px) { .evidence { grid-template-columns: 1fr; gap: 32px; } }
.tags-table { display: grid; gap: 10px; }
.tag-row { display: grid; grid-template-columns: 150px 1fr; gap: 16px; align-items: start; padding: 18px 20px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.tag-row p { font-size: 0.9rem; }
@media (max-width: 520px) { .tag-row { grid-template-columns: 1fr; gap: 8px; } }
.rules { list-style: none; display: grid; gap: 14px; margin-top: 28px; }
.rules li { display: flex; gap: 14px; font-size: 0.95rem; color: var(--text-2); }
.rules li::before { content: "✕"; color: var(--risk); font-size: 0.8rem; padding-top: 3px; }

/* ---------- about ---------- */
.about { display: grid; grid-template-columns: 360px 1fr; gap: 64px; align-items: start; }
@media (max-width: 900px) { .about { grid-template-columns: 1fr; gap: 40px; } }
.portrait {
  position: relative; aspect-ratio: 4 / 5; border-radius: var(--radius); overflow: hidden;
  background:
    radial-gradient(120% 80% at 20% 10%, color-mix(in srgb, var(--signal) 30%, transparent), transparent 60%),
    radial-gradient(90% 70% at 90% 100%, color-mix(in srgb, var(--decision) 22%, transparent), transparent 60%),
    var(--surface);
  border: 1px solid var(--line);
  display: grid; place-items: center;
}
.portrait img { width: 100%; height: 100%; object-fit: cover; }
.portrait .mono-mark { font-family: var(--font-display); font-style: italic; font-size: 7rem; color: var(--text); opacity: .9; }
.portrait figcaption { position: absolute; left: 16px; right: 16px; bottom: 16px; display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; border-radius: 12px; background: color-mix(in srgb, var(--bg) 70%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-size: 0.82rem; }
.about-text h2 { margin: 16px 0 24px; }
.about-text p { margin-bottom: 18px; font-size: 1.05rem; }
.about-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 32px; }
.about-facts div { padding: 16px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); }
.about-facts b { display: block; font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 500; margin-bottom: 6px; }
.about-facts span { font-size: 0.9rem; }
@media (max-width: 600px) { .about-facts { grid-template-columns: 1fr; } }

/* ---------- field notes ---------- */
.notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .notes { grid-template-columns: 1fr; } }
.note { padding: 28px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 14px; }
.note h3 { font-size: 1.35rem; }
.note p { font-size: 0.92rem; }
.note .soon { margin-top: auto; font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- contact ---------- */
.contact { text-align: center; padding: clamp(100px, 14vw, 180px) 0; overflow: hidden; }
.contact::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(600px 300px at 50% 100%, var(--signal-soft), transparent 70%),
    radial-gradient(400px 200px at 80% 0%, var(--decision-soft), transparent 70%);
  pointer-events: none;
}
.contact .container { position: relative; }
.contact h2 { font-size: clamp(2.4rem, 6vw, 4.6rem); max-width: 900px; margin: 20px auto 24px; }
.contact p { max-width: 600px; margin: 0 auto 40px; font-size: 1.1rem; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.contact-email { display: block; margin-top: 28px; font-family: var(--font-mono); font-size: 0.9rem; color: var(--muted); }
.contact-email:hover { color: var(--signal); }
.contact-prompts { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 0 auto 36px; max-width: 760px; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 36px 0 44px; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: start; }
.footer p { font-size: 0.82rem; color: var(--muted); max-width: 620px; }
.footer-links { display: flex; gap: 18px; font-size: 0.85rem; color: var(--text-2); }
.footer-links a:hover { color: var(--signal); }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .08s; } .reveal-d2 { transition-delay: .16s; } .reveal-d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}
.no-js .reveal { opacity: 1; transform: none; }

/* =========================================================
   Case-study pages
   ========================================================= */
.case-hero { padding: 150px 0 72px; position: relative; overflow: hidden; }
.case-hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(700px 360px at 85% 10%, var(--signal-soft), transparent 70%); pointer-events: none; }
.case-hero .container { position: relative; }
.breadcrumb { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); display: flex; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; }
.breadcrumb a:hover { color: var(--signal); }
.case-hero .q { font-family: var(--font-display); font-style: italic; font-size: clamp(1.2rem, 2.2vw, 1.6rem); color: var(--decision); margin: 22px 0 18px; max-width: 800px; line-height: 1.35; }
.case-hero h1 { font-size: clamp(2.3rem, 5.4vw, 4.2rem); max-width: 980px; }
.case-hero .lede { font-size: 1.15rem; max-width: 720px; margin-top: 24px; }
.case-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 56px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.case-meta div { padding: 20px 22px; border-left: 1px solid var(--line); }
.case-meta div:first-child { border-left: 0; }
.case-meta b { display: block; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 500; margin-bottom: 8px; }
.case-meta span { font-size: 0.92rem; color: var(--text); line-height: 1.45; display: block; }
@media (max-width: 860px) { .case-meta { grid-template-columns: 1fr 1fr; } .case-meta div:nth-child(3) { border-left: 0; } .case-meta div:nth-child(n+3) { border-top: 1px solid var(--line); } }
@media (max-width: 480px) { .case-meta { grid-template-columns: 1fr; } .case-meta div { border-left: 0; } .case-meta div:nth-child(n+2) { border-top: 1px solid var(--line); } }

.case-section { padding: 72px 0; border-top: 1px solid var(--line); }
.case-grid { display: grid; grid-template-columns: 260px 1fr; gap: 56px; }
@media (max-width: 860px) { .case-grid { grid-template-columns: 1fr; gap: 20px; } }
.case-grid > .label { position: sticky; top: 96px; align-self: start; }
.case-grid > .label h2 { font-size: 1.7rem; margin-top: 12px; }
@media (max-width: 860px) { .case-grid > .label { position: static; } }
.prose p { font-size: 1.08rem; margin-bottom: 18px; max-width: 760px; }
.prose p:last-child { margin-bottom: 0; }
.steps { list-style: none; counter-reset: step; display: grid; gap: 12px; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 48px 1fr; gap: 16px; padding: 18px 20px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.steps li::before { content: counter(step, decimal-leading-zero); font-family: var(--font-mono); font-size: 0.8rem; color: var(--signal); padding-top: 2px; }
.steps li b { display: block; margin-bottom: 4px; font-size: 0.98rem; }
.steps li p { font-size: 0.92rem; }
.evidence-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.ev { padding: 22px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px; }
.ev .big { font-family: var(--font-display); font-size: 2.2rem; line-height: 1; color: var(--decision); font-variation-settings: "opsz" 96; }
.ev p { font-size: 0.92rem; }
@media (max-width: 640px) { .evidence-list { grid-template-columns: 1fr; } }
.callout { padding: 28px; border-radius: var(--radius); border: 1px solid color-mix(in srgb, var(--signal) 40%, var(--line)); background: linear-gradient(135deg, var(--signal-soft), transparent 60%), var(--surface); }
.callout h3 { font-size: 1.5rem; margin-bottom: 12px; }
.callout p { margin-bottom: 18px; }
.confidential { display: flex; gap: 14px; padding: 18px 20px; border-radius: 14px; background: var(--surface-2); border: 1px dashed var(--line-strong); font-size: 0.86rem; color: var(--muted); }
.confidential svg { flex: none; width: 20px; height: 20px; color: var(--muted); margin-top: 2px; }
.next-case { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 40px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); transition: border-color .3s; flex-wrap: wrap; }
.next-case:hover { border-color: var(--signal); }
.next-case h3 { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-top: 8px; }
.viz-stack { display: grid; gap: 16px; }
.ladder { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.rung { padding: 18px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); position: relative; }
.rung .n { font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); }
.rung b { display: block; margin: 6px 0; font-size: 0.95rem; }
.rung p { font-size: 0.82rem; line-height: 1.45; }
.rung:nth-child(1) { border-top: 3px solid var(--s5); }
.rung:nth-child(2) { border-top: 3px solid var(--s3); }
.rung:nth-child(3) { border-top: 3px solid var(--s1); }
.rung:nth-child(4) { border-top: 3px solid var(--s2); }
@media (max-width: 760px) { .ladder { grid-template-columns: 1fr 1fr; } }
.rfm { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.rfm th, .rfm td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); color: var(--text-2); vertical-align: top; }
.rfm th { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.rfm td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }
.table-scroll { overflow-x: auto; }

/* 404 */
.notfound { min-height: 100svh; display: grid; place-items: center; text-align: center; padding: 120px 0; }
.notfound h1 { font-size: clamp(3rem, 10vw, 7rem); }
.notfound p { margin: 16px auto 32px; max-width: 480px; }

/* grid children must be allowed to shrink (tables, SVGs) */
.case-grid > *, .viz-stack > *, .qc-layout > *, .ai-row > * { min-width: 0; }
@media (max-width: 640px) {
  .viz-body:has(svg.wide) { overflow-x: auto; margin: 0 -8px; padding: 0 8px 6px; scrollbar-width: thin; }
  .viz-body svg.wide { min-width: 600px; }
  .viz-card { padding: 18px; }
  .rfm { min-width: 560px; }
}

/* about emblem (placeholder for a headshot) */
.portrait .emblem { width: 76%; height: auto; overflow: visible; margin-bottom: 56px; }
.portrait .emblem-ring { transform-origin: 160px 160px; animation: emblem-spin 90s linear infinite; }
@keyframes emblem-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .portrait .emblem-ring { animation: none; } }