/* Zurdotech site — design tokens carried over from the case-study infographics */
:root {
  --ink: #13233A; --ink-2: #1B2F4D; --body: #3E4B5C; --muted: #66727F;
  --paper: #F4F6F8; --page: #E9EDF1; --card: #FFFFFF; --rule: #D8DEE5;
  --accent: #B85F1A; --accent-hi: #F2A65A; --accent-soft: #FBEBDD;
  --blue: #2A64A8; --blue-hi: #7FB2EC; --blue-soft: #E4EEF8;
  --on-dark: #EEF2F6; --on-dark-2: #C9D3DF; --on-dark-3: #A9B8C9;
  --display: "Archivo", "Arial Narrow", Arial, sans-serif;
  --text: "IBM Plex Sans", "Segoe UI", Arial, sans-serif;
  --mono: "IBM Plex Mono", Consolas, "Courier New", monospace;
  --wrap: 1180px; --gutter: 32px;
  /* per-study colour code (overridden on study pages) */
  --study: #13233A; --tint-1: #1E3452; --tint-2: #5B7290; --tint-3: #8FA3BC;
  --freight: #3A2313; --laundry: #23133A; --mill: #3A1323; --hospital: #133A23;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--body); font: 400 17px/1.55 var(--text); overflow-x: hidden; }
h1, h2, h3, h4 { margin: 0; font-family: var(--display); color: var(--ink); text-wrap: balance; }
p, ul, ol, dl, figure { margin: 0; }
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; }
.mono { font-family: var(--mono); }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; background: var(--accent-hi); color: var(--ink); padding: 10px 14px; z-index: 100; font: 500 14px/1 var(--mono); }
.skip:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--accent-hi); outline-offset: 3px; }

/* Type helpers */
.eyebrow { font: 500 13px/1.3 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent-hi); }
.kicker { font: 500 13px/1.3 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.h-display { font-weight: 800; font-stretch: 80%; line-height: .95; }
.h-section { font-size: clamp(32px, 4.4vw, 52px); font-weight: 750; font-stretch: 84%; line-height: 1.02; }
.lede { font-size: clamp(18px, 1.6vw, 21px); line-height: 1.5; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; font: 600 16px/1 var(--text); padding: 15px 20px; text-decoration: none; border: 1.5px solid transparent; transition: transform .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent-hi); color: var(--ink); }
.btn-primary:hover { background: #F6B776; }
.btn-ghost { border-color: rgba(238,242,246,.4); color: var(--on-dark); }
.btn-ghost:hover { border-color: var(--on-dark); }
.btn-ink { background: var(--ink); color: #fff; }
.btn .arr { font-family: var(--text); transition: transform .15s ease; }
.btn:hover .arr { transform: translateX(3px); }

/* Header */
.site-head { position: sticky; top: 0; z-index: 50; background: rgba(19,35,58,.94); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,.08); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: #fff; font: 800 22px/1 var(--display); font-stretch: 85%; letter-spacing: .01em; }
.brand svg { width: 30px; height: 30px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--on-dark-2); text-decoration: none; font: 500 15px/1 var(--text); padding: 10px 12px; }
.nav a:hover, .nav a[aria-current="page"] { color: #fff; }
.nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--accent-hi); }
.nav .btn { margin-left: 10px; padding: 11px 16px; font-size: 15px; color: var(--ink); }
.nav .btn:hover { color: var(--ink); }
.nav-toggle { display: none; background: none; border: 1px solid rgba(255,255,255,.25); color: #fff; width: 44px; height: 40px; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 18px; height: 2px; background: currentColor; margin: auto; position: relative; content: ""; }
.nav-toggle span::before { position: absolute; top: -6px; } .nav-toggle span::after { position: absolute; top: 6px; }

/* Dark hero (non-study pages) */
.hero-x { position: relative; background: var(--ink); color: var(--on-dark); overflow: hidden; }
.hero-x::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(180deg, #000 40%, transparent); -webkit-mask-image: linear-gradient(180deg, #000 40%, transparent); pointer-events: none; }
.hero-x .wrap { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding-block: 88px 96px; }
.hero-x h1 { color: #fff; font-size: clamp(48px, 7vw, 96px); margin-top: 18px; }
.hero-x h1 em { font-style: normal; color: var(--accent-hi); }
.hero-x .lede { color: var(--on-dark-2); margin-top: 22px; max-width: 34ch; }
.hero-x .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-x.compact .wrap { grid-template-columns: 1fr; padding-block: 72px 64px; }
.hero-x.compact h1 { font-size: clamp(44px, 6vw, 80px); max-width: 16ch; }
.hero-x.compact .lede { max-width: 52ch; }

/* Device composition */
.stage { position: relative; min-height: 420px; }
.stage .device.laptop { position: absolute; left: 0; top: 10px; width: 92%; }
.stage .device.phone { position: absolute; right: 0; bottom: -10px; width: 30%; animation: float 7s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-10px); } }

.device { position: relative; }
.device .screen { position: relative; overflow: hidden; background: #F4F6F8; }
.device .screen > img, .device .screen > video, .device .screen > svg { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.device.laptop .bezel { background: #0B1626; border-radius: 12px 12px 0 0; padding: 12px 12px 14px; border: 1px solid #2B4466; border-bottom: 0; }
.device.laptop .screen { aspect-ratio: 16 / 10; border-radius: 2px; }
.device.laptop .base { height: 14px; background: linear-gradient(#3A5577, #22385A); border-radius: 0 0 14px 14px; margin-inline: -5%; position: relative; }
.device.laptop .base::after { content: ""; position: absolute; left: 50%; top: 0; width: 16%; height: 5px; transform: translateX(-50%); background: #142640; border-radius: 0 0 6px 6px; }
.device.phone .bezel { background: #0B1626; border-radius: 30px; padding: 10px; border: 1px solid #2B4466; box-shadow: 0 30px 60px -20px rgba(0,0,0,.55); }
.device.phone .screen { aspect-ratio: 9 / 19; border-radius: 22px; }
.device.tablet .bezel { background: #0B1626; border-radius: 22px; padding: 14px; border: 1px solid #2B4466; }
.device.tablet .screen { aspect-ratio: 4 / 3; border-radius: 8px; }
.device.paper .bezel { background: #fff; padding: 0; box-shadow: 0 18px 40px -18px rgba(19,35,58,.45); border: 1px solid var(--rule); }
.device.paper .screen { aspect-ratio: 8.5 / 11; background: #fff; }
.device figcaption { margin-top: 14px; font: 500 12.5px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.device figcaption b { display: block; font: 700 19px/1.2 var(--display); font-stretch: 90%; letter-spacing: 0; text-transform: none; color: var(--ink); margin-bottom: 2px; }
.on-dark .device figcaption { color: var(--on-dark-3); }
.on-dark .device figcaption b { color: #fff; }

/* Sections */
.sec { padding-block: 104px; }
.sec + .sec { border-top: 1px solid var(--rule); }
.sec-head { display: grid; gap: 16px; margin-bottom: 48px; max-width: 760px; }
.sec-head .lede { color: var(--body); }
.sec.white { background: var(--card); }
.sec.dark { background: var(--ink); color: var(--on-dark-2); border-top: 0; }
.sec.dark h2, .sec.dark h3 { color: #fff; }
.sec.dark .kicker { color: var(--accent-hi); }
.sec.dark .lede { color: var(--on-dark-2); }

/* Proof strip */
.proof { background: var(--card); border-bottom: 1px solid var(--rule); }
.proof .grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof .cell { padding: 34px 28px 30px; display: flex; flex-direction: column; gap: 8px; border-top: 4px solid var(--c, var(--ink)); }
.proof .cell + .cell { border-left: 1px solid var(--rule); }
.proof b { font: 800 clamp(40px, 4.6vw, 58px)/1 var(--display); font-stretch: 80%; color: var(--ink); font-variant-numeric: tabular-nums; }
.proof span { font-size: 15px; line-height: 1.4; color: var(--muted); }
.proof .note { padding: 12px 28px 16px; border-top: 1px solid var(--rule); font: 500 12px/1.4 var(--mono); letter-spacing: .08em; color: var(--muted); }

/* Story cards */
.stories { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.story { position: relative; display: grid; grid-template-rows: auto 1fr auto; gap: 18px; padding: 34px 34px 30px; background: var(--c); color: var(--on-dark-2); text-decoration: none; overflow: hidden; min-height: 400px; transition: transform .25s ease, box-shadow .25s ease; }
.story:hover { transform: translateY(-4px); box-shadow: 0 24px 48px -24px rgba(19,35,58,.6); }
.story .ill { width: 62%; max-width: 280px; justify-self: end; margin-top: -6px; transition: transform .35s ease; }
.story:hover .ill { transform: scale(1.04) rotate(-1deg); }
.story h3 { color: #fff; font-size: clamp(34px, 3.6vw, 46px); font-weight: 800; font-stretch: 80%; line-height: .95; margin-top: 8px; }
.story p { font-size: 16px; line-height: 1.5; max-width: 40ch; margin-top: 10px; }
.story .foot-row { display: flex; align-items: end; justify-content: space-between; gap: 16px; border-top: 1px solid rgba(255,255,255,.14); padding-top: 18px; }
.story .big { font: 800 40px/1 var(--display); font-stretch: 80%; color: #fff; }
.story .big small { display: block; font: 400 14px/1.35 var(--text); color: var(--on-dark-2); margin-top: 6px; }
.story .go { font: 500 13px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent-hi); white-space: nowrap; }

/* Capability columns */
.caps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.cap { background: var(--card); padding: 30px 28px; display: flex; flex-direction: column; gap: 14px; }
.cap .ico { width: 44px; height: 44px; }
.cap h3 { font-size: 26px; font-weight: 750; font-stretch: 86%; }
.cap ul { list-style: none; padding: 0; display: grid; gap: 8px; }
.cap li { display: grid; grid-template-columns: 16px 1fr; gap: 10px; font-size: 15.5px; line-height: 1.4; }
.cap li::before { content: ""; width: 8px; height: 8px; margin-top: 7px; background: var(--accent); }
.cap a { margin-top: auto; font: 500 13px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); text-decoration: none; padding-top: 8px; }

/* Why cards */
.why { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.why .card { background: var(--ink-2); padding: 26px 24px; display: flex; flex-direction: column; gap: 10px; border-top: 3px solid var(--accent-hi); }
.why .card .n { font: 500 13px/1 var(--mono); color: var(--accent-hi); }
.why .card h3 { font-size: 23px; font-weight: 750; font-stretch: 88%; color: #fff; }
.why .card p { font-size: 15.5px; line-height: 1.5; color: var(--on-dark-2); }

/* Process (flow, infographic style) */
.process { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; counter-reset: s; }
.process li { counter-increment: s; background: var(--card); border-top: 4px solid var(--ink); padding: 20px 18px; display: flex; flex-direction: column; gap: 8px; }
.process li.hot { border-top-color: var(--accent); background: var(--accent-soft); }
.process li::before { content: counter(s, decimal-leading-zero); font: 500 13px/1 var(--mono); color: var(--accent); }
.process strong { font: 700 21px/1.15 var(--display); font-stretch: 90%; color: var(--ink); }
.process span { font-size: 15px; line-height: 1.45; color: var(--body); }

/* CTA band */
.cta { background: var(--c, var(--ink)); color: var(--on-dark-2); }
.cta .wrap { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: end; padding-block: 72px; }
.cta h2 { color: #fff; font-size: clamp(32px, 4vw, 52px); font-weight: 800; font-stretch: 82%; line-height: 1; max-width: 18ch; margin-top: 12px; }
.cta p.lede { margin-top: 16px; max-width: 46ch; }
.cta .contact { font: 500 15px/1.75 var(--mono); color: var(--on-dark); text-align: right; }
.cta .contact a { text-decoration: none; }
.cta .contact a:hover { color: var(--accent-hi); }
.cta .actions { margin-top: 18px; display: flex; gap: 12px; justify-content: flex-end; }

/* Footer */
.site-foot { background: #0C1828; color: var(--on-dark-3); font-size: 15px; }
.site-foot .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; padding-block: 56px 40px; }
.site-foot h4 { font: 500 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--on-dark-2); margin-bottom: 14px; }
.site-foot ul { list-style: none; padding: 0; display: grid; gap: 8px; }
.site-foot a { text-decoration: none; } .site-foot a:hover { color: #fff; }
.site-foot .brand { margin-bottom: 14px; }
.site-foot .legal { border-top: 1px solid rgba(255,255,255,.08); }
.site-foot .legal .wrap { display: flex; justify-content: space-between; gap: 16px; padding-block: 18px 24px; font: 400 13px/1.5 var(--mono); grid-template-columns: none; }

/* Media gallery (study + products) */
.gallery { display: grid; grid-template-columns: repeat(12, 1fr); gap: 40px 32px; align-items: end; }
.gallery > .device { grid-column: span var(--span, 6); }

/* Product rows */
.prod { display: grid; grid-template-columns: 1fr 1.15fr; gap: 64px; align-items: center; }
.prod.flip > :first-child { order: 2; }
.prod h2 { margin-top: 12px; }
.prod .lede { margin-top: 18px; }
.prod ul.ticks { list-style: none; padding: 0; margin-top: 24px; display: grid; gap: 10px; }
.prod ul.ticks li { display: grid; grid-template-columns: 22px 1fr; gap: 8px; font-size: 16px; }
.prod ul.ticks li::before { content: "✓"; color: var(--blue); font-weight: 700; }
.on-dark ul.ticks li::before { color: var(--accent-hi); }
.used { margin-top: 22px; font: 500 12.5px/1.6 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.used a { color: var(--accent); }
.on-dark .used { color: var(--on-dark-3); } .on-dark .used a { color: var(--accent-hi); }
.duo { display: grid; grid-template-columns: 2.6fr 1fr; gap: 24px; align-items: end; }

/* 3D warehouse demo */
.prod.wide { align-items: end; }
.wh3d { position: relative; background: #0B1626; border: 1px solid #2B4466; aspect-ratio: 16 / 8; overflow: hidden; touch-action: none; cursor: grab; }
.wh3d:active { cursor: grabbing; }
.wh3d canvas { width: 100% !important; height: 100% !important; }
.wh3d .bar { position: absolute; left: 0; right: 0; top: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; padding: 10px 12px; background: rgba(11,22,38,.88); border-bottom: 1px solid #2B4466; font: 500 11.5px/1 var(--mono); letter-spacing: .04em; color: var(--on-dark-3); }
.wh3d .bar label { display: flex; align-items: center; gap: 6px; }
.wh3d .bar select, .wh3d .bar button { font: 500 11.5px/1 var(--mono); color: var(--on-dark); background: #13233A; border: 1px solid #2B4466; padding: 6px 8px; border-radius: 0; }
.wh3d .bar button { cursor: pointer; margin-left: auto; }
.wh3d .bar .chk input { accent-color: var(--accent-hi); margin: 0; }
.wh3d .legend { position: absolute; left: 12px; top: var(--bar-h, 50px); margin-top: 10px; display: grid; gap: 5px; pointer-events: none; font: 500 11px/1 var(--mono); color: var(--on-dark-2); }
.wh3d .legend i { display: inline-block; width: 9px; height: 9px; margin-right: 7px; vertical-align: -1px; }
.wh3d .totals { position: absolute; left: 12px; bottom: 12px; margin: 0; display: grid; grid-template-columns: auto auto; gap: 4px 14px; padding: 10px 12px; background: rgba(11,22,38,.9); border: 1px solid #2B4466; font: 500 11px/1.2 var(--mono); pointer-events: none; }
.wh3d .totals div { display: contents; }
.wh3d .totals dt { color: var(--on-dark-3); } .wh3d .totals dd { margin: 0; color: #fff; text-align: right; font-weight: 600; }
.wh3d .side { position: absolute; right: 0; top: var(--bar-h, 47px); bottom: 0; width: min(290px, 70%); overflow-y: auto; background: rgba(19,35,58,.97); border-left: 1px solid #2B4466; padding: 14px; color: var(--on-dark-2); font: 400 12.5px/1.4 var(--text); cursor: auto; }
.wh3d .side .x { position: absolute; right: 8px; top: 8px; width: 28px; height: 28px; background: none; border: 1px solid #2B4466; color: #fff; cursor: pointer; font-size: 16px; }
.wh3d .side .code { display: block; font: 800 22px/1.1 var(--display); font-stretch: 85%; color: #fff; }
.wh3d .side .sub { font: 500 11px/1.4 var(--mono); color: var(--on-dark-3); margin-top: 4px; }
.wh3d .side .pal { margin-top: 10px; padding: 10px; background: #0B1626; border: 1px solid #1E3452; }
.wh3d .side .pal b { display: block; color: #fff; font-weight: 600; margin-bottom: 6px; }
.wh3d .side dl { display: grid; grid-template-columns: 1fr auto; gap: 3px 10px; margin: 0; font: 500 11px/1.3 var(--mono); }
.wh3d .side dt { color: var(--on-dark-3); } .wh3d .side dd { margin: 0; text-align: right; color: var(--on-dark); }
.wh3d .side dd.q { color: var(--accent-hi); font-weight: 600; } .wh3d .side dd.warn { color: #F28A6E; }
@media (max-width: 900px) { .wh3d { aspect-ratio: 4 / 3; } }
@media (max-width: 600px) { .wh3d { aspect-ratio: 4 / 5; } .wh3d .side { top: auto; height: 55%; width: 100%; border-left: 0; border-top: 1px solid #2B4466; } }
.wh3d .fallback { position: absolute; inset: 0; display: grid; place-items: center; color: var(--on-dark-3); font: 500 13px/1.4 var(--mono); text-align: center; padding: 24px; }

/* Platform layers */
.layers { display: grid; gap: 10px; }
.layer { display: grid; grid-template-columns: 220px 1fr; gap: 24px; align-items: center; padding: 22px 24px; background: var(--card); border-left: 4px solid var(--ink); }
.layer.top { border-left-color: var(--accent); background: var(--accent-soft); }
.layer.mid { border-left-color: var(--blue); background: var(--blue-soft); }
.layer h3 { font-size: 22px; font-weight: 750; font-stretch: 88%; }
.layer h3 small { display: block; font: 500 11.5px/1.4 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips span { font: 500 13.5px/1 var(--mono); color: var(--ink); background: var(--card); border: 1px solid var(--rule); padding: 9px 11px; }
.layer.top .chips span, .layer.mid .chips span { border-color: transparent; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tile { background: var(--card); padding: 26px; border-left: 4px solid var(--accent); display: flex; flex-direction: column; gap: 8px; }
.tile h3 { font-size: 22px; font-weight: 750; font-stretch: 88%; }
.tile p { font-size: 15.5px; line-height: 1.5; }
.fineprint { margin-top: 18px; font-size: 13.5px; color: var(--muted); }

/* About */
.about { display: grid; grid-template-columns: 1fr 1.3fr; gap: 64px; align-items: start; }
.portrait { aspect-ratio: 4 / 5; background: var(--ink); position: relative; overflow: hidden; }
.portrait img { width: 100%; height: 100%; object-fit: cover; }
.portrait .ph { position: absolute; inset: 0; display: grid; place-items: center; color: var(--tint-2); }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--rule); border: 1px solid var(--rule); margin-top: 32px; }
.facts div { background: var(--card); padding: 20px 22px; }
.facts b { display: block; font: 800 38px/1 var(--display); font-stretch: 80%; color: var(--ink); }
.facts span { font-size: 14.5px; color: var(--muted); }
.prose p + p { margin-top: 16px; }
.prose p { font-size: 18px; line-height: 1.65; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: start; }
.cform { position: relative; display: grid; gap: 16px; background: var(--card); padding: 32px; border-top: 4px solid var(--accent); }
.cform label { display: grid; gap: 6px; font: 500 12.5px/1.2 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.cform input, .cform select, .cform textarea { font: 400 16px/1.4 var(--text); color: var(--ink); background: var(--paper); border: 1px solid var(--rule); padding: 12px 14px; border-radius: 0; width: 100%; }
.cform textarea { min-height: 140px; resize: vertical; }
.cform input:focus, .cform select:focus, .cform textarea:focus { outline: 2px solid var(--blue); outline-offset: 0; border-color: var(--blue); }
.cform .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.cform .btn { justify-self: start; border: 0; cursor: pointer; }
.cform .note { font-size: 14px; color: var(--muted); }
.cform .note.ok { color: #1E7A4A; font-weight: 600; font-size: 15.5px; padding: 12px 14px; background: #E3F2E9; border-left: 4px solid #1E7A4A; }
.cform .note.err { color: #A33A1E; font-weight: 600; font-size: 15.5px; padding: 12px 14px; background: var(--accent-soft); border-left: 4px solid #A33A1E; }
.cform .btn:disabled { opacity: .6; cursor: wait; }
.cform .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.direct { display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.direct > div { background: var(--card); padding: 22px 24px; }
.direct dt { font: 500 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.direct dd { margin: 0; font: 600 19px/1.35 var(--text); color: var(--ink); }
.direct a { text-decoration: none; } .direct a:hover { color: var(--accent); }

/* Breadcrumb on study pages */
.crumb { background: var(--study); border-bottom: 1px solid rgba(255,255,255,.1); }
.crumb .wrap { display: flex; justify-content: space-between; gap: 16px; padding-block: 14px; font: 500 12.5px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-2); }
.crumb a { text-decoration: none; color: var(--accent-hi); }

/* Download band */
.dl { background: var(--card); border: 1px solid var(--rule); display: grid; grid-template-columns: 120px 1fr auto; gap: 24px; align-items: center; padding: 20px 24px; }
.dl img { width: 120px; height: 90px; object-fit: cover; object-position: top; border: 1px solid var(--rule); }
.dl h3 { font-size: 21px; font-weight: 750; font-stretch: 90%; }
.dl p { font-size: 15px; color: var(--muted); }

/* More studies */
.next-studies { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.next-studies a { background: var(--c); color: var(--on-dark-2); padding: 22px 24px; text-decoration: none; display: grid; gap: 6px; transition: transform .2s ease; }
.next-studies a:hover { transform: translateY(-3px); }
.next-studies b { font: 800 28px/1 var(--display); font-stretch: 80%; color: #fff; }
.next-studies span { font: 500 12px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent-hi); }

/* ---------- Study pages: the infographic, as a web page ---------- */
.study { background: var(--paper); }
.study .hero { position: relative; overflow: hidden; background: var(--study); color: var(--on-dark); }
.study .hero > *:not(.wm) { position: relative; }
.study .hero .wm { position: absolute; right: -40px; bottom: -18px; width: 760px; max-width: none; height: auto; opacity: .08; pointer-events: none; }
.study .hero h1 { color: #fff; font-size: clamp(52px, 8vw, 112px); line-height: .92; font-weight: 800; font-stretch: 80%; margin-top: 14px; }
.study .hero .sub { margin-top: 20px; font-size: clamp(18px, 1.7vw, 22px); line-height: 1.45; color: var(--on-dark-2); max-width: 32ch; }
.study .tags { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 8px; }
.study .tags span { font: 500 14px/1 var(--mono); letter-spacing: .06em; color: var(--ink); background: var(--accent-hi); padding: 8px 10px; }
.study .hero svg:not(.wm) { width: 100%; height: auto; max-width: 420px; justify-self: center; }
.study .waybill { background: var(--card); border-top: 2px dashed var(--ink); border-bottom: 1px solid var(--rule); display: grid; grid-template-columns: auto 1fr; gap: 28px; align-items: center; }
.study .waybill svg { width: 210px; height: 46px; display: block; }
.study .waybill dl { margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px 26px; width: 100%; }
.study .waybill div { display: flex; flex-direction: column; gap: 2px; }
.study .waybill dt { font: 500 11px/1.2 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.study .waybill dd { margin: 0; font: 500 15px/1.3 var(--mono); color: var(--ink); }
.study .stats { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--card); border-bottom: 1px solid var(--rule); }
.study .stat { padding: 34px 28px; display: flex; flex-direction: column; gap: 8px; }
.study .stat + .stat { border-left: 1px solid var(--rule); }
.study .stat b { font: 800 clamp(40px, 4.4vw, 56px)/1 var(--display); font-stretch: 80%; color: var(--ink); font-variant-numeric: tabular-nums; }
.study .stat span { font-size: 15px; line-height: 1.4; color: var(--muted); }
.study .block { padding-block: 80px; display: flex; flex-direction: column; gap: 28px; }
.study .block + .block, .study .media-block + .block { border-top: 1px solid var(--rule); }
.study .block h2 { font-size: clamp(32px, 4vw, 48px); line-height: 1.02; font-weight: 750; font-stretch: 84%; }
.study .ba { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: stretch; }
.study .panel { padding: 30px; display: flex; flex-direction: column; gap: 14px; }
.study .panel.before { background: var(--card); border: 1px dashed #A9B2BD; }
.study .panel.after { background: var(--blue-soft); border: 1.5px solid var(--blue); }
.study .panel h3 { font-size: 26px; font-weight: 750; font-stretch: 88%; }
.study .panel .tag { font: 500 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.study .before .tag { color: var(--muted); } .study .after .tag { color: var(--blue); }
.study .panel ul { padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.study .panel li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; font-size: 17px; line-height: 1.45; }
.study .before li::before { content: "×"; color: #8E98A3; font: 700 18px/1.2 var(--text); }
.study .after li::before { content: "✓"; color: var(--blue); font: 700 17px/1.25 var(--text); }
.study .arrow { align-self: center; width: 58px; height: 58px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; font: 700 26px/1 var(--text); }
.study .who { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.study .role { background: var(--card); border: 1px solid var(--rule); padding: 28px; display: flex; flex-direction: column; gap: 16px; }
.study .role header { display: flex; align-items: center; gap: 14px; }
.study .role header svg { width: 44px; height: 44px; flex: none; }
.study .role h3 { font-size: 23px; font-weight: 750; font-stretch: 88%; }
.study .role header p { font-size: 15px; color: var(--muted); }
.study .forms { display: flex; flex-direction: column; gap: 10px; }
.study .form { display: grid; grid-template-columns: 74px 1fr; gap: 14px; align-items: center; padding: 12px 14px; background: var(--paper); }
.study .form b { font: 500 17px/1 var(--mono); color: var(--ink); background: var(--card); border: 1.5px solid var(--ink); padding: 9px 0; text-align: center; }
.study .form span { font-size: 15.5px; line-height: 1.35; }
.study .flow { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; counter-reset: s; }
.study .flow.seven { grid-template-columns: repeat(7, 1fr); }
.study .flow li { counter-increment: s; background: var(--card); border-top: 4px solid var(--ink); padding: 18px 16px; display: flex; flex-direction: column; gap: 6px; }
.study .flow li.hot { border-top-color: var(--accent); background: var(--accent-soft); }
.study .flow li::before { content: counter(s, decimal-leading-zero); font: 500 13px/1 var(--mono); color: var(--accent); }
.study .flow strong { font: 700 19px/1.15 var(--display); font-stretch: 90%; color: var(--ink); }
.study .flow span { font-size: 14.5px; line-height: 1.4; color: var(--muted); }
.study .parts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.study .part { background: var(--card); padding: 22px 24px; display: flex; flex-direction: column; gap: 6px; }
.study .part b { font: 700 20px/1.2 var(--display); font-stretch: 90%; color: var(--ink); }
.study .part span { font-size: 15.5px; line-height: 1.45; }
.study .results { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.study .result { background: var(--card); padding: 24px 26px; border-left: 4px solid var(--accent); display: flex; flex-direction: column; gap: 6px; }
.study .result h3 { font-size: 22px; font-weight: 750; font-stretch: 90%; }
.study .result p { font-size: 16px; line-height: 1.5; }
.study .media-block { background: var(--study); color: var(--on-dark-2); padding-block: 88px; }
.study .media-block h2 { color: #fff; }
.study .media-block .kicker { color: var(--accent-hi); }
.on-dark .sec-head .lede { color: var(--on-dark-2); }
.study .fine { font-size: 13.5px; line-height: 1.5; color: var(--muted); padding-block: 0 40px; }

/* Study layout: the ported fragments are full-bleed sections; constrain their content */
.study .hero, .study .waybill, .study .block { padding-inline: max(var(--gutter), calc((100% - var(--wrap)) / 2 + var(--gutter))); }
.study .hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; padding-block: 72px 64px; }
.study .waybill { padding-block: 14px; }
.study .stats { padding-inline: max(0px, calc((100% - var(--wrap)) / 2)); }

/* Reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .stage .device.phone { animation: none; }
  .story, .story .ill, .btn { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .why { grid-template-columns: 1fr 1fr; }
  .process { grid-template-columns: 1fr 1fr 1fr; }
  .study .flow, .study .flow.seven { grid-template-columns: repeat(4, 1fr); }
  .site-foot .wrap { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  :root { --gutter: 16px; }
  .nav-toggle { display: grid; place-items: center; }
  .nav { position: absolute; left: 0; right: 0; top: 68px; flex-direction: column; align-items: stretch; background: var(--ink); padding: 8px 16px 18px; border-bottom: 1px solid rgba(255,255,255,.1); display: none; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 4px; border-bottom: 1px solid rgba(255,255,255,.08); }
  .nav a[aria-current="page"] { box-shadow: none; color: var(--accent-hi); }
  .nav .btn { margin: 14px 0 0; justify-content: center; border-bottom: 0; }
  .hero-x .wrap { grid-template-columns: 1fr; padding-block: 56px 64px; }
  .stage { min-height: 0; aspect-ratio: 1.25; }
  .sec { padding-block: 72px; }
  .proof .grid { grid-template-columns: 1fr 1fr; }
  .proof .cell:nth-child(3) { border-left: 0; }
  .stories, .caps, .grid-3, .next-studies { grid-template-columns: 1fr; }
  .story { min-height: 0; }
  .story .ill { width: 70%; }
  .prod, .about, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .prod.flip > :first-child { order: 0; }
  .gallery { grid-template-columns: 1fr 1fr; gap: 28px 16px; }
  .gallery > .device.laptop, .gallery > .device.tablet { grid-column: 1 / -1; }
  .gallery > .device.phone, .gallery > .device.paper { grid-column: span 1; max-width: 260px; }
  .layer { grid-template-columns: 1fr; gap: 12px; }
  .cta .wrap { grid-template-columns: 1fr; align-items: start; padding-block: 56px; }
  .cta .contact { text-align: left; } .cta .actions { justify-content: flex-start; }
  .site-foot .wrap { grid-template-columns: 1fr; }
  .site-foot .legal .wrap { flex-direction: column; }
  .dl { grid-template-columns: 1fr; } .dl img { width: 100%; height: 140px; }
  .cform .row { grid-template-columns: 1fr; }
  .duo { grid-template-columns: 1fr 1fr; }

  .study .hero { grid-template-columns: 1fr; padding-block: 48px; }
  .study .hero svg:not(.wm) { max-width: 300px; }
  .study .hero .wm { width: 520px; right: -140px; }
  .study .waybill { grid-template-columns: 1fr; gap: 12px; }
  .study .waybill dl { grid-template-columns: 1fr 1fr; }
  .study .stats { grid-template-columns: 1fr 1fr; }
  .study .stat:nth-child(3) { border-left: 0; }
  .study .stat:nth-child(n+3) { border-top: 1px solid var(--rule); }
  .study .block { padding-block: 56px; }
  .study .ba { grid-template-columns: 1fr; }
  .study .arrow { transform: rotate(90deg); justify-self: center; }
  .study .who, .study .results, .study .parts { grid-template-columns: 1fr; }
  .study .flow, .study .flow.seven { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .why, .process { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr; }
  .proof .cell { padding: 24px 18px; }
  .study .stat { padding: 24px 18px; }
  .duo { grid-template-columns: 1fr; }
  .duo .device.phone { max-width: 220px; justify-self: center; }
}

/* Lite 3D demo inside a device frame (case studies) */
.device .screen > .wh3d { aspect-ratio: auto; width: 100%; height: 100%; border: 0; }
.wh3d .full { position: absolute; right: 10px; bottom: 10px; font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink); background: var(--accent-hi); padding: 8px 10px; text-decoration: none; }
.wh3d .full:hover { background: #F6B776; }
.device .wh3d .side { width: min(240px, 60%); padding: 10px; font-size: 11.5px; }
.device .wh3d .side .code { font-size: 18px; }
.device .wh3d .legend { font-size: 10px; }
@media (max-width: 600px) { .device .wh3d .side { width: 100%; height: 60%; } }