:root{
  --paper:#FBF7F5;
  --tide:#F2E4DF;
  --harbor:#2A1413;
  --red:#9A1E1C;
  --oxblood:#5C1311;
  --signal:#FFC9A3;
  --muted:#6B4A47;
  --line:#E2CFC9;
  --display:"Bricolage Grotesque",system-ui,-apple-system,"Segoe UI",sans-serif;
  --text:"Source Serif 4",Georgia,"Times New Roman",serif;
  --gutter:clamp(20px,5vw,64px);
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--harbor);font:400 1.125rem/1.68 var(--text);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--signal);outline-offset:3px;border-radius:2px}
.dark :focus-visible{outline-color:var(--signal)}

h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.08;letter-spacing:-.02em;margin:0 0 .5em;text-wrap:balance}
h1{font-size:clamp(2.4rem,6vw,4.6rem);font-weight:800;letter-spacing:-.035em}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem)}
h3{font-size:1.3rem;letter-spacing:-.01em}
p{margin:0 0 1.1em;max-width:62ch}
.lede{font-size:1.3rem;line-height:1.55;color:var(--muted);max-width:56ch}
.dark .lede{color:#F3D2CB}

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

/* header */
.site-header{border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
.brand{font-family:var(--display);font-weight:800;font-size:1.35rem;letter-spacing:-.03em;text-decoration:none}
.brand span{color:var(--red)}
.nav{display:flex;align-items:center;gap:clamp(14px,3vw,30px);flex-wrap:wrap;font-family:var(--display);font-size:1rem;font-weight:500}
.nav a{text-decoration:none;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover{border-bottom-color:var(--line)}
.nav a[aria-current="page"]{border-bottom-color:var(--harbor)}
.nav .btn{border-bottom:0;padding:9px 16px}

/* buttons */
.btn{display:inline-block;font-family:var(--display);font-weight:600;font-size:1rem;background:var(--red);color:#fff;padding:13px 22px;border-radius:4px;text-decoration:none;border:2px solid var(--red);cursor:pointer;transition:background .15s,border-color .15s}
.btn:hover{background:#7F1816;border-color:#7F1816;text-decoration:none}
.btn.ghost{background:transparent;color:var(--harbor);border-color:currentColor}
.btn.ghost:hover{background:rgba(154,30,28,.08);border-color:currentColor}
.dark .btn.ghost:hover{background:rgba(255,255,255,.1)}

/* bands */
.band{padding:clamp(56px,9vw,112px) 0}
.band.tint{background:var(--tide)}
.dark{background:var(--red);color:#FFF7F4}
.page-head{padding:clamp(48px,8vw,96px) 0 clamp(32px,5vw,56px)}
.page-head h1{max-width:16ch}

/* hero */
.hero{padding:clamp(48px,8vw,104px) 0 clamp(56px,8vw,96px)}
.hero h1{max-width:19ch}
.hero .lede{margin:24px 0 32px}
.actions{display:flex;gap:14px;flex-wrap:wrap}

/* the equation */
.equation{margin:0;padding:0;list-style:none;font-family:var(--display);font-weight:800;font-size:clamp(1.9rem,5.2vw,3.7rem);line-height:1.12;letter-spacing:-.03em}
.equation li{display:flex;align-items:baseline;gap:.5em;opacity:0;transform:translateY(8px);animation:rise .6s cubic-bezier(.2,.7,.2,1) forwards}
.equation li:nth-child(1){animation-delay:.1s}
.equation li:nth-child(2){animation-delay:.35s}
.equation li:nth-child(3){animation-delay:.6s}
.equation li:nth-child(4){animation-delay:.85s}
.equation li:nth-child(5){animation-delay:1.1s}
.equation .op{color:var(--signal);min-width:.8em}
.equation .last{box-shadow:inset 0 -.28em 0 var(--signal)}
@keyframes rise{to{opacity:1;transform:none}}
.eq-note{margin-top:28px;color:#F3D2CB;max-width:52ch;font-size:1.05rem}

/* model */
.model{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px);align-items:start}
.fields{display:grid;gap:16px}
.field label{display:block;font-family:var(--display);font-weight:600;font-size:.95rem;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;font:inherit;font-size:1.05rem;padding:11px 13px;border:1.5px solid #B79A94;border-radius:4px;background:#fff;color:var(--harbor)}
.field textarea{min-height:150px;resize:vertical}
.field input[type=range]{padding:0;border:0;background:none;accent-color:var(--red)}
.field .hint{font-size:.92rem;color:var(--muted);margin:6px 0 0}
.range-row{display:flex;justify-content:space-between;font-family:var(--display);font-weight:600;font-size:.95rem}
.out{background:var(--oxblood);color:#fff;padding:clamp(22px,4vw,36px);border-radius:6px}
.out .row{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.18)}
.out .row:last-of-type{border-bottom:0}
.out .k{font-family:var(--display);font-size:.98rem;color:#F3D2CB}
.out .v{font-family:var(--display);font-weight:800;font-size:1.7rem;letter-spacing:-.02em}
.out .gain .v{color:var(--signal);font-size:2.3rem}
.out small{display:block;color:#F3D2CB;font-size:.9rem;line-height:1.5;margin-top:14px}

/* grids */
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,48px)}
.cols.two{grid-template-columns:repeat(2,1fr)}
.split{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,6vw,88px);align-items:start}
.item{border-top:3px solid var(--harbor);padding-top:18px}
.item h3{margin-bottom:.35em}
.item p{color:var(--muted);margin-bottom:.8em}
.item ul,.plain{margin:0 0 1em;padding-left:1.1em}
.item li,.plain li{margin-bottom:.35em}

/* steps (a real sequence) */
.steps{list-style:none;margin:0;padding:0;counter-reset:step}
.steps li{counter-increment:step;display:grid;grid-template-columns:3rem 1fr;gap:12px;padding:20px 0;border-top:1px solid var(--line)}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps li::before{content:counter(step);font-family:var(--display);font-weight:800;font-size:1.9rem;line-height:1;color:var(--red)}
.steps h3{margin:0 0 .2em;font-size:1.15rem}
.steps p{margin:0;color:var(--muted)}

/* case studies */
.case{padding:clamp(40px,6vw,72px) 0;border-top:1px solid var(--line)}
.case:first-of-type{border-top:0}
.case header{display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,5vw,72px);margin-bottom:28px}
.case h2{margin:0}
.case .tags{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0;padding:0;list-style:none}
.case .tags li{font-family:var(--display);font-size:.88rem;font-weight:500;background:var(--tide);padding:4px 11px;border-radius:99px}
.case dl{display:grid;grid-template-columns:5fr 7fr;gap:0 clamp(24px,5vw,72px);margin:0}
.case dt{font-family:var(--display);font-weight:700;padding-top:18px;border-top:1px solid var(--line)}
.case dd{margin:0;padding:18px 0 18px;border-top:1px solid var(--line)}
.case dd p:last-child{margin-bottom:0}
.todo{background:#FFF3BF;border-bottom:2px dashed #B38F00;padding:0 3px}
.template-flag{display:inline-block;font-family:var(--display);font-weight:600;font-size:.9rem;background:#FFF3BF;border:1.5px dashed #B38F00;padding:5px 12px;border-radius:4px;margin-bottom:16px}

/* aside panel */
.panel{background:var(--tide);padding:clamp(22px,4vw,36px);border-radius:6px}
.panel h3{margin-top:0}
.panel p{color:var(--muted)}
.facts{margin:0;display:grid;gap:0}
.facts div{display:grid;grid-template-columns:9rem 1fr;gap:16px;padding:14px 0;border-top:1px solid var(--line)}
.facts div:last-child{border-bottom:1px solid var(--line)}
.facts dt{font-family:var(--display);font-weight:700}
.facts dd{margin:0}

/* form */
form.contact{display:grid;gap:18px}
.two-up{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.hp{position:absolute;left:-9999px}
.form-note{font-size:.95rem;color:var(--muted)}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:40px 0 56px;font-size:1rem;color:var(--muted)}
.site-footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.site-footer a{color:var(--harbor)}

@media (max-width:860px){
  .model,.split,.case header,.case dl{grid-template-columns:1fr}
  .cols,.cols.two{grid-template-columns:1fr}
  .case dt{border-top:1px solid var(--line);padding-bottom:0}
  .case dd{border-top:0;padding-top:6px}
  .two-up{grid-template-columns:1fr}
  .facts div{grid-template-columns:1fr;gap:2px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .equation li{animation:none;opacity:1;transform:none}
  *{transition:none!important}
}

/* buttons and focus on dark bands */
.dark .btn{background:#fff;color:var(--red);border-color:#fff}
.dark .btn:hover{background:var(--signal);border-color:var(--signal)}
.dark .btn.ghost{background:transparent;color:#fff;border-color:#fff}
.out .gain .v{color:var(--signal)}
:focus-visible{outline-color:var(--red)}

/* metrics */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:28px 36px;margin:0;padding:0;list-style:none}
.metric strong{display:block;font-family:var(--display);font-weight:800;font-size:clamp(2.2rem,4.2vw,3.3rem);line-height:1;letter-spacing:-.035em;color:var(--red)}
.metric span{display:block;margin-top:10px;color:var(--muted);font-size:1.02rem;line-height:1.45;max-width:26ch}
.case dd .metrics{padding-top:2px}

/* case study categories */
.jump{margin-top:24px}
.category{padding:clamp(40px,6vw,72px) 0;border-top:1px solid var(--line)}
.category.tint{background:var(--tide)}
.cat-head{display:flex;flex-wrap:wrap;align-items:center;gap:14px 28px;margin-bottom:8px}
.cat-head h2{margin:0}
.cat-head .tags,.case .tags{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.cat-head .tags li{font-family:var(--display);font-size:.88rem;font-weight:500;background:var(--tide);padding:4px 11px;border-radius:99px}
.category.tint .tags li{background:var(--paper)}
.case h3{margin:0;font-size:clamp(1.5rem,2.6vw,1.9rem)}
.category .case:first-of-type{border-top:0}
.range{margin:20px 0 4px;padding:22px 0 26px;border-bottom:1px solid var(--line)}
.range-label{font-family:var(--display);font-weight:700;margin:0 0 16px}

/* infographics */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(24px,5vw,72px);align-items:center}
.hero-art svg{width:100%;max-width:430px;height:auto;margin:0 auto}
.loop text{font-family:var(--display);fill:var(--harbor);text-anchor:middle}
.loop .t1{font-weight:700;font-size:15px}
.loop .t2{font-size:11px;fill:var(--muted)}
.loop .node{fill:var(--tide);stroke:var(--red);stroke-width:2.5}
.loop .arc{fill:none;stroke:var(--red);stroke-width:3;stroke-linecap:round}
.loop .core{fill:var(--red)}
.loop .core-t{fill:#fff;font-weight:800;font-size:26px}
.loop .core-s{fill:#FFE3D4;font-size:10px}

.icon{display:block;width:44px;height:44px;margin-bottom:14px;fill:none;stroke:var(--red);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.icon .f{fill:var(--red);stroke:none}

.map-legend{display:flex;gap:22px;flex-wrap:wrap;margin:22px 0 10px;font-family:var(--display);font-size:.92rem;font-weight:500}
.map-legend i{display:inline-block;width:26px;height:10px;border-radius:99px;margin-right:8px;vertical-align:middle}
.i-create{background:var(--red)}
.i-convert{background:var(--oxblood)}
.map{margin-top:8px}
.map-head,.map-row{display:grid;grid-template-columns:13rem repeat(4,1fr);column-gap:0;align-items:center}
.map-head span{font-family:var(--display);font-weight:700;font-size:.85rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);padding:0 8px 10px;text-align:center}
.map-row{border-top:1px solid var(--line);min-height:46px;position:relative}
.map-name{font-family:var(--display);font-weight:600;font-size:.98rem;padding:10px 12px 10px 0}
.map-row .bar{grid-column:calc(var(--s) + 1) / calc(var(--e) + 2);height:16px;border-radius:99px;margin:0 6px}
.bar.create{background:var(--red)}
.bar.convert{background:var(--oxblood)}


@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr}
  .hero-art{order:2}
  .map-head,.map-row{grid-template-columns:repeat(4,1fr)}
  .map-head span:first-child{display:none}
  .map-name{grid-column:1/-1;padding:12px 0 6px}
  .map-row .bar{grid-column:var(--s) / calc(var(--e) + 1);margin-bottom:12px}
  .map-row{min-height:0}
  .map-head span{font-size:.7rem;padding:0 2px 8px}
}
.hero-grid h1{font-size:clamp(2.4rem,4.6vw,3.9rem);max-width:none}

.metrics.ranges{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.metrics.ranges .metric strong{font-size:clamp(1.7rem,2.6vw,2.3rem);letter-spacing:-.03em}
.range{border-bottom:0;padding-bottom:0}
.metrics.ranges{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.metrics.ranges .metric strong{font-size:clamp(1.5rem,2.1vw,1.7rem);white-space:nowrap}
.metrics.ranges.home{grid-template-columns:repeat(3,1fr)}
@media (max-width:860px){.metrics.ranges.home{grid-template-columns:1fr}}
.range .metrics.ranges{grid-template-columns:repeat(4,1fr)}
@media (max-width:1060px){.range .metrics.ranges{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.range .metrics.ranges{grid-template-columns:1fr}}

/* contact form states */
[hidden]{display:none!important}
.form-status{margin:0;padding:12px 14px;border-left:3px solid var(--red);background:#fff;color:var(--harbor);font-size:1rem}
.form-done{outline:none}
.form-done h3{margin-bottom:.4em}
.btn:disabled{opacity:.7;cursor:wait}
.form-again{margin:0}
.link-btn{background:none;border:0;padding:0;font:inherit;font-size:1rem;color:var(--harbor);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.link-btn:hover{text-decoration-thickness:2px}