/* ==========================================================================
   BACKSPACE — landing page
   Monochrome by brand: there is no accent hue, so hierarchy comes from value,
   weight and scale. Emphasis inside a heading is brightness, not colour.
   Every heading is one or two complete sentences (DESIGN-STANDARD.md §1).
   ========================================================================== */

:root{
  --ink:#0C0D08; --deep:#080A06; --raised:transparent; --edge:#242821;
  --paper:#FEFEFE; --bright:#F7F6F4; --mid:#C2C6BE; --dim:#8E958A;
  --line:rgba(247,246,244,.20); --line-soft:rgba(247,246,244,.10);
  --accent:#F2F1F1; --on-accent:#0C0D08;   /* a value, not a hue */
  --dot:rgba(247,246,244,.11);
  --ease:cubic-bezier(.23,1,.32,1);
}
/* Type scale. Nine steps for interface text, plus four one-off component
   sizes. Headlines are not here — h1/h2/h3 and .lede are fluid clamp().
   Pick a step. Do not invent a twenty-second size. */
:root{
  --t-3xs:9px; --t-2xs:10.5px; --t-xs:11.5px; --t-sm:12.5px;
  --t-base:13px; --t-md:14px; --t-lg:15.5px; --t-xl:16px; --t-2xl:17px;
  --t-c19:19px; --t-c20:20px; --t-c21:21px; --t-c22:22px;
}
/* The six data channels. Colour is allowed here and nowhere else
   (BRAND.md §2: charts and data channels, never buttons, links or
   headings). These are the only definitions — the markup, the SVG and
   the decision table all read them from here. */
:root{
  --ch-0:#78C6E8;   /* till */
  --ch-1:#8FD3A6;   /* stock */
  --ch-2:#E3B978;   /* online */
  --ch-3:#C4A2E0;   /* social */
  --ch-4:#E89A9A;   /* shelf */
  --ch-5:#7FD2C6;   /* rival */
}
.fchip.ch-0{--c:var(--ch-0)}
.fchip.ch-1{--c:var(--ch-1)}
.fchip.ch-2{--c:var(--ch-2)}
.fchip.ch-3{--c:var(--ch-3)}
.fchip.ch-4{--c:var(--ch-4)}
.fchip.ch-5{--c:var(--ch-5)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--ink);color:var(--bright);
  font-family:"DM Sans",ui-sans-serif,system-ui,-apple-system,sans-serif;
  font-weight:400;font-size:var(--t-xl);line-height:1.6;letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--bright);outline-offset:3px;border-radius:2px}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 30px}

h1,h2,h3{font-weight:600;letter-spacing:-.038em;line-height:1.04;margin:0;text-wrap:balance}
h1{font-size:clamp(42px,6vw,78px)}
h2{font-size:clamp(31px,4vw,56px);line-height:1.06;max-width:19ch}
h3{font-size:clamp(22px,2.3vw,30px);line-height:1.12;font-weight:600}
h4{font-size:var(--t-2xl);font-weight:500;letter-spacing:-.02em;margin:0}
p{margin:0}
em{font-style:normal;color:var(--bright)}
h1 em,h2 em{color:var(--mid)}          /* emphasis by value, never by hue */
h1 .lead,h2 .lead{color:var(--bright)}
/* Each heading is exactly two sentences, so each sentence gets its own line.
   This guarantees the break lands on a full stop and never mid-phrase (§1). */
@media(min-width:700px){
  h1 em,h1 .lead,h2 em,h2 .lead{display:block}
  h2{max-width:26ch}
}

.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:var(--t-xs);font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}
.eyebrow::before{content:"";width:16px;height:1px;background:var(--dim)}
.lede{color:var(--mid);font-size:clamp(16px,1.5vw,19px);max-width:56ch;line-height:1.6}

/* ---- buttons: ghost only. With no accent hue there is no filled CTA ---- */
.btn{display:inline-flex;align-items:center;gap:11px;min-height:50px;padding:0 24px;
  border:1px solid var(--line);border-radius:3px;font-size:var(--t-md);font-weight:400;
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease)}
.btn:hover{border-color:var(--bright);background:rgba(242,241,241,.05);transform:translateY(-2px)}
.btn:active{transform:scale(.98)}
.btn-solid{background:var(--bright);color:var(--on-accent);border-color:var(--bright)}
.btn-solid:hover{background:#fff;color:var(--on-accent)}
.btn .arw{width:15px;height:9px;flex:none}
.txtlink{display:inline-flex;align-items:center;gap:9px;font-size:var(--t-md);color:var(--mid);
  transition:color .2s var(--ease)}
.txtlink:hover{color:var(--bright)}

section{border-top:1px solid var(--line-soft)}
.sect{padding:clamp(78px,9vw,124px) 0}
.sect-head{display:grid;gap:20px;margin-bottom:clamp(38px,5vw,62px)}

/* ---- header ---------------------------------------------------------- */
.site-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:26px;
  padding:16px 30px;background:rgba(12,13,8,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft)}
.site-header .logo{height:26px;width:auto}
.nav{display:flex;gap:26px;margin-left:auto;font-size:var(--t-md);color:var(--mid)}
.nav a{transition:color .2s var(--ease)}
.nav a:hover{color:var(--bright)}
.header-cta{margin-left:auto;min-height:40px;padding:0 16px;font-size:var(--t-base)}
.nav+.header-cta{margin-left:0}

/* ---- hero ------------------------------------------------------------- */
.hero{position:relative;overflow:hidden;background:var(--deep);
  padding:clamp(96px,12vw,168px) 0 clamp(56px,6vw,84px)}

/* Full-cover media behind the words. The rules below fit a <video> or an
   <img> unchanged; the poster stands in until the footage has loaded. */
.hero-bed{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transform-origin:52% 56%;background:var(--deep)}
/* a still needs the slow push-in; footage already moves, so it does not */
img.hero-media{animation:driftin 40s ease-in-out infinite alternate}
@keyframes driftin{from{transform:scale(1.05)}to{transform:scale(1.17) translate3d(-1.6%,-1%,0)}}

/* A scrim, only as strong as the words need to stay readable on it. */
.hero-bed::after{content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(8,10,6,.62) 0%,rgba(8,10,6,.80) 30%,rgba(8,10,6,.93) 62%,var(--ink) 96%),
    radial-gradient(ellipse 62% 46% at 50% 44%,rgba(8,10,6,.55),transparent 72%)}

.hero::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:radial-gradient(circle,var(--dot) 1px,transparent 1px);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(ellipse 74% 56% at 50% 40%,#000 22%,transparent 74%);
  mask-image:radial-gradient(ellipse 74% 56% at 50% 40%,#000 22%,transparent 74%)}
.hero .wrap{position:relative;z-index:3}
.hero-in{display:grid;gap:clamp(30px,4vw,44px);justify-items:center;text-align:center}
.hero h1{max-width:15ch}
.hero .lede{max-width:60ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 30px;justify-content:center;
  font-size:var(--t-sm);color:var(--dim);letter-spacing:.02em}
.hero-facts span{display:inline-flex;align-items:center;gap:8px}
.hero-facts .dot{width:5px;height:5px;border-radius:50%;background:var(--mid)}

/* the live strip: what Backspace is watching right now */
.ticker{position:relative;z-index:3;background:rgba(8,10,6,.55);margin-top:clamp(44px,6vw,70px);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.ticker-track{display:flex;gap:44px;padding:15px 0;width:max-content;
  animation:slide 44s linear infinite}
.ticker-item{display:inline-flex;align-items:center;gap:11px;font-size:var(--t-sm);color:var(--dim);
  white-space:nowrap;letter-spacing:.02em}
.ticker-item b{font-weight:500;color:var(--mid)}
.pulse{width:6px;height:6px;border-radius:50%;background:var(--mid);flex:none;
  animation:blink 2.4s ease-in-out infinite}
@keyframes slide{to{transform:translateX(-50%)}}
@keyframes blink{0%,100%{opacity:.35}50%{opacity:1}}


/* the live signal flow: many sources in, one decision out, on a phone */
.flow{position:relative;z-index:3;margin:clamp(46px,6vw,80px) auto 0;
  width:100%;max-width:1720px;padding:0 clamp(20px,3vw,44px)}
.flow-head{display:flex;flex-wrap:wrap;gap:8px 30px;align-items:baseline;justify-content:center;
  font-size:var(--t-sm);letter-spacing:.15em;text-transform:uppercase;color:var(--mid);margin-bottom:22px}
.flow-head b{color:var(--bright);font-weight:600;font-variant-numeric:tabular-nums}
.flow-stage{display:grid;grid-template-columns:minmax(0,1fr) 274px;gap:clamp(18px,3vw,52px);
  align-items:center}
.flow svg{width:100%;height:auto;display:block;overflow:visible}
.flow .wire{fill:none;stroke-width:1.5;opacity:.5;transition:opacity .5s var(--ease),stroke-width .5s var(--ease)}
.flow .wire.live{opacity:1;stroke-width:2.6}
.flow .node{stroke-width:2;fill:none}
.flow .out{fill:none;stroke:var(--bright);stroke-width:2.6;stroke-dasharray:9 7;
  animation:dash 1.5s linear infinite}
@keyframes dash{to{stroke-dashoffset:-32}}
.flow .core{fill:none;stroke:var(--bright);stroke-width:2}
.flow .core-fill{fill:rgba(247,246,244,.05)}
.flow text{fill:var(--mid);font-size:var(--t-xl);letter-spacing:.12em;text-transform:uppercase;
  font-family:inherit;font-weight:600}
.flow text.lit{fill:var(--bright)}
.flow .halo{fill:none;stroke:var(--bright);stroke-width:1.2;opacity:.5;animation:halo 3.4s ease-out infinite}
@keyframes halo{0%{r:40;opacity:.5}70%{opacity:0}100%{r:92;opacity:0}}

/* the decision table, on a phone, changing as signals land */
.flow-phone{border:1px solid var(--line);border-radius:26px;padding:9px;
  background:var(--ink);box-shadow:0 30px 70px -46px #000}
.fp-notch{width:66px;height:4px;border-radius:99px;background:var(--edge);margin:2px auto 8px}
.fp-screen{border:1px solid var(--line-soft);border-radius:18px;overflow:hidden;min-height:326px;
  display:grid;grid-template-rows:auto 1fr}
.fp-top{display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:11px 13px;border-bottom:1px solid var(--line-soft)}
.fp-top b{font-size:var(--t-sm);font-weight:600;letter-spacing:-.01em}
.fp-top span{font-size:var(--t-3xs);letter-spacing:.12em;text-transform:uppercase;color:var(--dim);
  display:inline-flex;align-items:center;gap:6px}
.fp-rows{padding:5px;display:grid;gap:5px;align-content:start}
.fp-row{display:grid;grid-template-columns:7px minmax(0,1fr);gap:9px;padding:9px 9px;
  border:1px solid var(--line-soft);border-radius:8px;align-items:start;
  animation:fpin .55s var(--ease)}
@keyframes fpin{from{transform:translateY(-7px);opacity:0}to{transform:none;opacity:1}}
.fp-row .bar{width:3px;height:100%;min-height:26px;border-radius:99px;margin-top:2px}
.fp-row .src{display:block;font-size:var(--t-3xs);letter-spacing:.13em;text-transform:uppercase;font-weight:600}
.fp-row .sig{display:block;font-size:var(--t-sm);color:var(--bright);margin-top:4px;line-height:1.34}
.fp-row .dec{font-size:var(--t-xs);color:var(--mid);margin-top:5px;line-height:1.36;
  display:flex;gap:6px;align-items:flex-start}
.fp-row .dec i{flex:none;margin-top:5px;width:9px;height:1px;background:var(--dim);display:block}
@media(max-width:1000px){
  .flow-stage{grid-template-columns:1fr;justify-items:center}
  .flow-phone{width:274px}
}
@media(max-width:760px){.flow-stage{overflow-x:auto}.flow svg{min-width:620px}}

/* ---- problem ---------------------------------------------------------- */
.prob-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.prob{position:relative;padding-top:18px;border-top:1px solid var(--line)}
.prob figure{margin:0 0 20px;position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:3px}
.prob img{width:100%;height:100%;object-fit:cover;
  transition:transform .8s var(--ease)}
.prob:hover img{transform:scale(1.045)}
.prob-body{padding:0}
.prob-body .n{font-size:var(--t-xs);letter-spacing:.16em;color:var(--dim);font-weight:500}
.prob-body p{margin-top:11px;color:var(--mid);font-size:var(--t-lg);line-height:1.58}
.prob-body strong{display:block;color:var(--bright);font-weight:400;font-size:var(--t-2xl);margin-top:9px}

/* ---- how it works ----------------------------------------------------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;
  border-top:1px solid var(--line)}
.step{position:relative;padding:26px 30px 8px 0}
.step+.step{border-left:1px solid var(--line-soft);padding-left:30px}
.step-n{display:flex;align-items:center;gap:12px;font-size:var(--t-xs);letter-spacing:.16em;
  color:var(--dim);font-weight:500}
.step h3{margin:16px 0 12px}
.step p{color:var(--mid);font-size:var(--t-lg)}
.step-arrow{position:absolute;right:-11px;top:24px;z-index:3;width:22px;height:22px;
  display:grid;place-items:center;border-radius:50%;background:var(--ink);
  border:1px solid var(--line)}
.step:last-child .step-arrow{display:none}
.step-arrow svg{width:9px;height:9px;color:var(--mid);animation:nudge 2.6s ease-in-out infinite}
@keyframes nudge{0%,100%{transform:translateX(-1px);opacity:.6}50%{transform:translateX(1px);opacity:1}}

/* ---- action card ------------------------------------------------------ */
.card-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.82fr);
  gap:clamp(26px,4vw,54px);align-items:start}
.acard{border:1px solid var(--line);border-radius:5px;background:transparent;overflow:hidden}
.acard-top{display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 20px;border-bottom:1px solid var(--line-soft);background:rgba(247,246,244,.03)}
.acard-top .id{font-size:var(--t-xs);letter-spacing:.14em;color:var(--dim);font-weight:500}
.acard-status{display:inline-flex;align-items:center;gap:8px;font-size:var(--t-xs);letter-spacing:.12em;
  text-transform:uppercase;color:var(--mid)}
.acard-body{padding:24px 22px 8px;display:grid;gap:18px}
.arow{display:grid;grid-template-columns:104px minmax(0,1fr);gap:16px;align-items:start;
  padding-bottom:16px;border-bottom:1px solid var(--line-soft)}
.arow:last-of-type{border-bottom:0}
.arow .k{font-size:var(--t-xs);letter-spacing:.13em;text-transform:uppercase;color:var(--dim);
  font-weight:500;padding-top:3px}
.arow .v{color:var(--bright);font-size:var(--t-lg);line-height:1.55}
.arow .v small{display:block;color:var(--mid);font-size:var(--t-md);margin-top:5px}
.acard-foot{display:flex;flex-wrap:wrap;gap:10px;padding:0 22px 22px}
.tag{font-size:var(--t-xs);letter-spacing:.06em;color:var(--mid);border:1px solid var(--line-soft);
  border-radius:99px;padding:5px 12px}
.acard-steps{display:flex;gap:8px;margin-top:22px;flex-wrap:wrap}
.acard-steps button{font-size:var(--t-sm);letter-spacing:.1em;text-transform:uppercase;color:var(--dim);
  border:1px solid var(--line-soft);border-radius:99px;padding:7px 14px;
  transition:color .25s var(--ease),border-color .25s var(--ease)}
.acard-steps button[aria-pressed="true"]{color:var(--bright);border-color:var(--bright)}
.card-note{display:grid;gap:16px}
.card-note li{list-style:none;display:grid;grid-template-columns:16px 1fr;gap:12px;
  color:var(--mid);font-size:var(--t-lg);line-height:1.55}
.card-note ul{margin:0;padding:0;display:grid;gap:14px}
.card-note b{color:var(--bright);font-weight:400}
.tick{width:16px;height:16px;margin-top:3px;color:var(--dim)}

/* ---- product screens -------------------------------------------------- */
.screens-bar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  justify-content:space-between;margin-bottom:26px}
.toggle{display:inline-flex;border:1px solid var(--line-soft);border-radius:99px;padding:4px}
.toggle button{padding:8px 18px;border-radius:99px;font-size:var(--t-base);color:var(--mid);
  transition:background .25s var(--ease),color .25s var(--ease)}
.toggle button[aria-selected="true"]{background:var(--bright);color:var(--on-accent)}
.stage{position:relative;display:grid;place-items:center;padding:clamp(20px,4vw,46px) 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:radial-gradient(circle,var(--dot) 1px,transparent 1px);background-size:26px 26px}
.screen{display:none}
.screen.on{display:block}

/* laptop */
.laptop{width:min(920px,94%);margin:0 auto}
.laptop-lid{border:1px solid var(--line);border-radius:9px 9px 3px 3px;background:var(--ink);
  padding:9px 9px 0;box-shadow:0 40px 80px -50px #000}
.laptop-bar{display:flex;align-items:center;gap:6px;padding:0 4px 9px}
.laptop-bar i{width:7px;height:7px;border-radius:50%;background:var(--edge);display:block}
.laptop-lid{position:relative}
.laptop-lid::after{content:"";position:absolute;left:0;right:0;top:0;height:120px;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(247,246,244,.055),transparent);
  animation:sweep 7s ease-in-out infinite}
@keyframes sweep{0%{transform:translateY(-10%);opacity:0}12%{opacity:1}88%{opacity:1}100%{transform:translateY(430%);opacity:0}}
.chart .line{stroke-dasharray:1000;stroke-dashoffset:0;animation:draw 6s ease-in-out infinite}
@keyframes draw{0%{stroke-dashoffset:1000}35%,100%{stroke-dashoffset:0}}
.chart .head{animation:bob 6s ease-in-out infinite}
@keyframes bob{0%,30%{opacity:0}40%{opacity:1}100%{opacity:1}}
.kpi b{font-variant-numeric:tabular-nums}
.laptop-base{height:11px;margin:0 auto;width:64%;border-radius:0 0 9px 9px;
  background:linear-gradient(#1b1e19,#0e100c);border:1px solid var(--line-soft);border-top:0}

/* the app itself */
.app{border-radius:3px;overflow:hidden;background:var(--ink);border:1px solid var(--line-soft);
  display:grid;grid-template-columns:172px minmax(0,1fr);min-height:430px;text-align:left}
.app-nav{border-right:1px solid var(--line-soft);padding:16px 12px;display:grid;
  align-content:start;gap:3px;background:transparent}
.app-nav .brandrow{display:flex;align-items:center;gap:8px;padding:4px 8px 16px}
.app-nav .brandrow img{height:16px}
.app-nav a{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:3px;
  font-size:var(--t-base);color:var(--dim)}
.app-nav a.on{background:rgba(242,241,241,.07);color:var(--bright)}
.app-main{padding:18px 20px 22px;display:grid;gap:16px;align-content:start}
.app-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;flex-wrap:wrap}
.app-head .app-title{margin:0;font-size:var(--t-c19);font-weight:400;letter-spacing:-.02em}
.app-head .sub{font-size:var(--t-sm);color:var(--dim)}
.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border:1px solid var(--line-soft);border-radius:4px;overflow:hidden}
.kpi{padding:12px 14px;background:transparent}
.kpi+.kpi{border-left:1px solid var(--line-soft)}
.kpi b{display:block;font-size:var(--t-c21);font-weight:400;letter-spacing:-.03em}
.kpi span{font-size:var(--t-2xs);letter-spacing:.11em;text-transform:uppercase;color:var(--dim)}
.kpi.down b{color:var(--bright)}
.panel{border:1px solid var(--line-soft);border-radius:4px;background:transparent;padding:14px 16px}
.panel-h{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.panel-h span{font-size:var(--t-2xs);letter-spacing:.13em;text-transform:uppercase;color:var(--dim)}
.chart{width:100%;height:112px;display:block}
.feed{display:grid;gap:8px}
.feeditem{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;
  padding:10px 12px;border:1px solid var(--line-soft);border-radius:3px;background:transparent}
.feeditem b{font-weight:400;font-size:var(--t-base)}
.feeditem small{display:block;color:var(--dim);font-size:var(--t-xs);margin-top:2px}
.feeditem .pill{font-size:var(--t-2xs);letter-spacing:.08em;text-transform:uppercase;color:var(--mid);
  border:1px solid var(--line-soft);border-radius:99px;padding:3px 9px;white-space:nowrap}

/* phone */
.phone{width:300px;margin:0 auto;border:1px solid var(--line);border-radius:32px;
  background:var(--ink);padding:11px;box-shadow:0 40px 80px -50px #000}
.phone-notch{width:92px;height:5px;border-radius:99px;background:var(--edge);margin:2px auto 9px}
.phone-screen{border-radius:22px;overflow:hidden;background:var(--ink);
  border:1px solid var(--line-soft);min-height:520px;display:grid;
  grid-template-rows:auto 1fr auto;text-align:left}
.ph-top{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 10px;
  border-bottom:1px solid var(--line-soft)}
.ph-top img{height:15px}
.ph-body{padding:14px 14px;display:grid;gap:10px;align-content:start}
.ph-h{font-size:var(--t-xl);font-weight:400;letter-spacing:-.02em;margin:2px 0 2px}
.ph-sub{font-size:var(--t-sm);color:var(--dim)}
.ph-card{border:1px solid var(--line-soft);border-radius:4px;background:transparent;padding:12px}
.ph-card .lab{font-size:var(--t-2xs);letter-spacing:.13em;text-transform:uppercase;color:var(--dim)}
.ph-card b{display:block;font-weight:400;font-size:var(--t-md);margin-top:6px;line-height:1.35}
.ph-card p{color:var(--mid);font-size:var(--t-sm);margin-top:6px;line-height:1.5}
.ph-card{animation:arrive .7s var(--ease) backwards}
.ph-card:nth-child(4){animation-delay:.15s}.ph-card:nth-child(5){animation-delay:.3s}
@keyframes arrive{from{transform:translateY(9px);opacity:.25}to{transform:none;opacity:1}}
.ph-tabs{display:flex;border-top:1px solid var(--line-soft)}
.ph-tabs div{flex:1;text-align:center;padding:11px 0;font-size:var(--t-2xs);letter-spacing:.1em;
  text-transform:uppercase;color:var(--dim)}
.ph-tabs div.on{color:var(--bright)}
.disclaimer{margin-top:18px;font-size:var(--t-base);color:var(--dim);display:flex;align-items:center;gap:10px}

/* ---- who ------------------------------------------------------------- */
.tiers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}
.tier{border-top:1px solid var(--line);padding:20px 0 0;display:grid;gap:12px;
  align-content:start;transition:border-color .3s var(--ease)}
.tier:hover{border-color:var(--bright)}
.tier .who{font-size:var(--t-xs);letter-spacing:.15em;text-transform:uppercase;color:var(--dim);font-weight:500}
.tier p{color:var(--mid);font-size:var(--t-lg)}
.tier ul{margin:6px 0 0;padding:0;display:grid;gap:9px}
.tier li{list-style:none;display:grid;grid-template-columns:14px 1fr;gap:10px;
  font-size:var(--t-md);color:var(--mid)}
.tier li svg{width:14px;height:14px;margin-top:4px;color:var(--dim)}

/* ---- faq -------------------------------------------------------------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:clamp(26px,4vw,58px);align-items:start}
.faq-list{border-top:1px solid var(--line-soft)}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item>button{width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 0;text-align:left;font-size:var(--t-2xl);font-weight:400;letter-spacing:-.02em}
.faq-item .chev{width:14px;height:14px;flex:none;color:var(--dim);
  transition:transform .3s var(--ease),color .3s var(--ease)}
.faq-item.open .chev{transform:rotate(180deg);color:var(--bright)}
.faq-a{overflow:hidden;max-height:0;transition:max-height .35s var(--ease)}
.faq-item.open .faq-a{max-height:600px}
.faq-a p{color:var(--mid);font-size:var(--t-lg);padding-bottom:22px;max-width:62ch}

/* ---- closing ---------------------------------------------------------- */
.closing{position:relative;overflow:hidden;background:var(--deep);text-align:center}
.closing::before{content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle,var(--dot) 1px,transparent 1px);background-size:26px 26px;
  -webkit-mask-image:radial-gradient(ellipse 70% 70% at 50% 50%,#000 25%,transparent 75%);
  mask-image:radial-gradient(ellipse 70% 70% at 50% 50%,#000 25%,transparent 75%)}
.closing .wrap{position:relative;z-index:2;display:grid;gap:26px;justify-items:center}
.closing h2{max-width:18ch}


/* ---- contact ---------------------------------------------------------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:clamp(30px,5vw,72px);align-items:start;text-align:left}
.contact-detail{display:grid;gap:24px}
.cdl{display:grid;gap:4px;padding-top:16px;border-top:1px solid var(--line-soft);margin:0}
.cdl dt{font-size:var(--t-xs);letter-spacing:.15em;text-transform:uppercase;color:var(--dim);font-weight:500}
.cdl dd{margin:0;font-size:var(--t-xl);color:var(--bright)}
.cdl dd a:hover{text-decoration:underline;text-underline-offset:3px}
.cdl dd small{display:block;color:var(--mid);font-size:var(--t-md);margin-top:4px;line-height:1.5}
.form{display:grid;gap:16px}
.field{display:grid;gap:7px}
.field label{font-size:var(--t-xs);letter-spacing:.14em;text-transform:uppercase;color:var(--dim);font-weight:500}
.field input,.field textarea,.field select{
  width:100%;background:transparent;color:var(--bright);border:0;border-bottom:1px solid var(--line);
  padding:11px 2px;font:inherit;font-size:var(--t-xl);border-radius:0;
  transition:border-color .25s var(--ease)}
.field select option{background:#12150f;color:var(--bright)}
.field textarea{resize:vertical;min-height:92px;line-height:1.55}
.field input:focus,.field textarea:focus,.field select:focus{outline:0;border-bottom-color:var(--bright)}
.field input::placeholder,.field textarea::placeholder{color:var(--dim)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-foot{display:flex;flex-wrap:wrap;gap:14px 20px;align-items:center;margin-top:6px}
.form-note{font-size:var(--t-base);color:var(--dim);max-width:38ch}
.form-sent{display:none;padding:20px 0 0;border-top:1px solid var(--line)}
.form-sent.on{display:block}
.form-sent b{display:block;font-size:var(--t-c20);font-weight:600;letter-spacing:-.02em}
.form-sent p{color:var(--mid);margin-top:8px;font-size:var(--t-lg)}
.form.sent{display:none}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}}

/* ---- footer ----------------------------------------------------------- */
.site-footer{border-top:1px solid var(--line-soft);padding:34px 0 44px}
.foot-top{display:flex;flex-wrap:wrap;gap:18px 30px;align-items:center;justify-content:space-between}
.foot-top img{height:22px}
.foot-links{display:flex;flex-wrap:wrap;gap:22px;font-size:var(--t-md);color:var(--mid)}
.foot-bottom{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:26px;padding-top:20px;
  border-top:1px solid var(--line-soft);font-size:var(--t-sm);color:var(--dim)}

/* ---- responsive ------------------------------------------------------- */
@media(max-width:900px){
  .nav{display:none}
  .prob-grid,.steps,.tiers{grid-template-columns:1fr}
  .step+.step{border-left:0;border-top:1px solid var(--line-soft)}
  .step-arrow{right:auto;left:28px;top:auto;bottom:-11px;transform:rotate(90deg)}
  .card-wrap,.faq-grid{grid-template-columns:1fr}
  .app{grid-template-columns:1fr}
  .app-nav{display:none}
  .kpis{grid-template-columns:repeat(2,minmax(0,1fr))}
  .kpi:nth-child(3),.kpi:nth-child(4){border-top:1px solid var(--line-soft)}
  .kpi:nth-child(3){border-left:0}
}
@media(max-width:560px){
  .wrap{padding:0 20px}
  .site-header{padding:14px 20px}
  .hero-facts{gap:8px 18px;font-size:var(--t-xs)}
  .arow{grid-template-columns:1fr;gap:6px}
  .laptop{width:100%}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;
    transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* ==========================================================================
   Inner pages: demo, privacy
   ========================================================================== */
body.page{background:var(--ink)}
.page-head{padding-top:clamp(56px,7vw,96px);padding-bottom:clamp(24px,3vw,40px);
  border-top:0}
.page-head .wrap{display:grid;gap:20px;max-width:900px}
.page-head h1{font-size:clamp(34px,4.6vw,60px);max-width:20ch}
.page-head .lede{max-width:62ch}
.meta-line{font-size:var(--t-sm);color:var(--dim);letter-spacing:.01em;padding-top:6px;
  border-top:1px solid var(--line-soft);margin-top:6px}

/* what happens next, on the demo page */
.next-steps{display:grid;gap:18px;padding-top:22px;border-top:1px solid var(--line-soft)}
.ns{display:grid;grid-template-columns:30px 1fr;gap:14px;align-items:start}
.ns>span{font-size:var(--t-xs);letter-spacing:.14em;color:var(--dim);font-weight:600;padding-top:2px}
.ns b{display:block;font-size:var(--t-lg);font-weight:600;letter-spacing:-.015em}
.ns p{color:var(--mid);font-size:var(--t-md);margin-top:4px;line-height:1.5}

/* privacy prose */
.prose{max-width:820px;display:grid;gap:clamp(30px,4vw,46px)}
.pblock{display:grid;gap:14px;padding-top:24px;border-top:1px solid var(--line)}
.pblock h2{font-size:clamp(22px,2.5vw,30px);max-width:24ch;display:block}
.pblock h2 .lead,.pblock h2 em{display:inline}
.pblock p{color:var(--mid);font-size:var(--t-xl);line-height:1.62;max-width:66ch}
.pblock b{color:var(--bright);font-weight:600}
.pblock a{text-decoration:underline;text-underline-offset:3px;color:var(--bright)}
.pblock ul{margin:2px 0 0;padding:0;display:grid;gap:11px;max-width:66ch}
.pblock li{list-style:none;position:relative;padding-left:20px;color:var(--mid);
  font-size:var(--t-xl);line-height:1.58}
.pblock li::before{content:"";position:absolute;left:0;top:11px;width:9px;height:1px;
  background:var(--dim)}
.pblock.accent{border-top-color:var(--bright);padding-top:26px}
.pblock.accent h2{color:var(--bright)}
.pcta{display:flex;flex-wrap:wrap;gap:14px;padding-top:26px;border-top:1px solid var(--line)}

@media(max-width:700px){
  .page-head h1 em,.page-head h1 .lead{display:inline}
  .pblock h2{font-size:var(--t-c22)}
}

/* contact page */
.contact-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;
  border-top:1px solid var(--line)}
.ccard{display:grid;gap:9px;align-content:start;padding:26px 30px 30px 0;
  transition:opacity .25s var(--ease)}
.ccard+.ccard{border-left:1px solid var(--line-soft);padding-left:30px}
a.ccard:hover b{text-decoration:underline;text-underline-offset:4px}
.cc-k{font-size:var(--t-xs);letter-spacing:.15em;text-transform:uppercase;color:var(--dim);font-weight:600}
.ccard b{font-size:clamp(19px,2vw,23px);font-weight:600;letter-spacing:-.025em;line-height:1.2}
.cc-s{color:var(--mid);font-size:var(--t-lg);line-height:1.55}
.contact-foot{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:30px 44px;
  align-items:end;margin-top:clamp(44px,6vw,74px);padding-top:28px;border-top:1px solid var(--line)}
.contact-foot h2{font-size:clamp(21px,2.4vw,29px);max-width:24ch;display:block}
.contact-foot h2 .lead,.contact-foot h2 em{display:inline}
.contact-foot .lede{margin-top:12px}
.cf-links{display:flex;flex-wrap:wrap;gap:12px}
.side-note{margin-top:26px;padding-top:20px;border-top:1px solid var(--line-soft);
  font-size:var(--t-md);color:var(--mid)}
.side-note a{color:var(--bright);text-decoration:underline;text-underline-offset:3px}
@media(max-width:900px){
  .contact-cards{grid-template-columns:1fr}
  .ccard{padding:22px 0}
  .ccard+.ccard{border-left:0;border-top:1px solid var(--line-soft);padding-left:0}
  .contact-foot{grid-template-columns:1fr;align-items:start}
}

/* honeypot: present for bots, gone for everyone else */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-msg{font-size:var(--t-base);color:var(--ch-4);flex-basis:100%}

/* an inner page carrying cover media behind its heading */
.page-hero{position:relative;overflow:hidden;background:var(--deep);
  padding-top:clamp(84px,10vw,140px);padding-bottom:clamp(56px,7vw,92px)}
.page-hero .hero-bed::after{
  background:linear-gradient(180deg,rgba(8,10,6,.66) 0%,rgba(8,10,6,.82) 38%,
    rgba(8,10,6,.94) 72%,var(--ink) 98%)}
.page-hero .wrap{position:relative;z-index:2}
.page-hero .lede{color:#D8DCD4}

/* thank you */
.thanks .wrap{gap:18px}
.tick-badge{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:50%;
  border:1px solid var(--line);color:var(--bright);margin-bottom:4px;
  animation:tickin .5s var(--ease) both}
.tick-badge svg{width:24px;height:24px}
@keyframes tickin{from{transform:scale(.86);opacity:0}to{transform:none;opacity:1}}
.thanks h1{max-width:22ch}
.thanks .lede a{color:var(--bright);text-decoration:underline;text-underline-offset:3px}
.thanks-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(30px,5vw,66px);align-items:start}
.thanks-grid h2{font-size:clamp(21px,2.4vw,28px);display:block}
.thanks-grid h2 .lead,.thanks-grid h2 em{display:inline}
.thanks-aside{display:grid;gap:14px;align-content:start;padding-top:20px;
  border-top:1px solid var(--line)}
.thanks-aside>p{color:var(--mid);font-size:var(--t-lg)}
.thanks-link{display:grid;gap:4px;padding:15px 0;border-top:1px solid var(--line-soft);
  transition:opacity .2s var(--ease)}
.thanks-link b{font-size:var(--t-xl);font-weight:600;letter-spacing:-.02em}
.thanks-link span{color:var(--mid);font-size:var(--t-md);line-height:1.5}
.thanks-link:hover b{text-decoration:underline;text-underline-offset:4px}
.thanks-cta{padding-top:16px;border-top:1px solid var(--line-soft)}
@media(max-width:900px){.thanks-grid{grid-template-columns:1fr}}

/* ---- the flow, on a narrow screen -------------------------------------
   The wide diagram does not shrink honestly, and putting it in a
   horizontally scrolling box hides more than half of it behind a drag
   nobody knows to make. Below 760px it becomes a column instead: the six
   sources, then Backspace, then the decisions they produced. */
.flow-column{display:none}

@media(max-width:760px){
  .flow{padding:0 20px}
  .flow-head{gap:6px 18px;font-size:var(--t-xs);margin-bottom:18px}
  .flow-stage{display:block;overflow:visible}
  .flow svg{display:none}
  .flow-column{display:grid;justify-items:center;gap:0}

  .fchips{display:grid;grid-template-columns:1fr 1fr;gap:7px;width:100%}
  .fchip{position:relative;display:flex;align-items:center;gap:8px;
    padding:9px 11px 9px 12px;border:1px solid var(--line-soft);border-radius:4px;
    font-size:var(--t-xs);letter-spacing:.02em;color:var(--mid);line-height:1.25;
    transition:border-color .4s var(--ease),color .4s var(--ease)}
  .fchip::before{content:"";flex:none;width:7px;height:7px;border-radius:50%;
    background:var(--c);opacity:.55;transition:opacity .4s var(--ease),
    box-shadow .4s var(--ease)}
  .fchip.live{color:var(--bright);border-color:var(--c)}
  .fchip.live::before{opacity:1;box-shadow:0 0 0 4px color-mix(in srgb,var(--c) 22%,transparent)}

  .fd-line{position:relative;display:block;width:1px;height:26px;
    background:linear-gradient(var(--line),transparent)}
  .fd-line i{position:absolute;left:50%;top:0;width:5px;height:5px;margin-left:-2.5px;
    border-radius:50%;background:var(--bright);animation:fdrop 2.1s linear infinite}
  .fd-line:last-of-type{background:linear-gradient(transparent,var(--line))}
  @keyframes fdrop{0%{transform:translateY(-2px);opacity:0}
    18%{opacity:1}82%{opacity:1}100%{transform:translateY(24px);opacity:0}}

  .fd-core{display:inline-block;padding:8px 16px;border:1.5px solid var(--bright);
    border-radius:7px;font-size:var(--t-xs);font-weight:600;letter-spacing:.14em;
    text-transform:uppercase;color:var(--bright);background:rgba(247,246,244,.05)}

  /* a phone frame, on a phone, is silly. Let the cards be the cards. */
  .flow-phone{width:100%;margin-top:20px;border:0;border-radius:0;padding:0;
    background:none;box-shadow:none}
  .fp-notch{display:none}
  .fp-screen{border:0;border-radius:0;min-height:0}
  .fp-top{padding:0 0 10px;border-bottom:1px solid var(--line)}
  .fp-rows{padding:10px 0 0;gap:7px}
  .fp-row{padding:11px 12px}
  .fp-row .sig{font-size:var(--t-base)}
  .fp-row .dec{font-size:var(--t-sm)}
}

@media(max-width:760px){
  /* Render the app at its real width and scale the whole thing, so the
     laptop still reads as a laptop instead of as page content in a box. */
  /* The app is taken out of flow so its 740px does not become the wrap's
     intrinsic width — otherwise the grid item sizes to max-content and the
     whole laptop pushes the page sideways. */
  /* With the app out of flow there is no intrinsic width left, so the frame
     needs one of its own. */
  .stage{justify-items:stretch}
  .laptop{width:100%}
  .laptop-lid .app-wrap{position:relative;overflow:hidden;height:236px;width:100%}
  .laptop-lid .app{position:absolute;top:0;left:0;width:740px;min-height:470px;
    transform:scale(.425);transform-origin:top left}
  /* the app inside the frame keeps its real two-column layout; only the
     scale changes, so it still reads as the desktop product */
  .laptop-lid .app{grid-template-columns:172px minmax(0,1fr)}
  .laptop-lid .app-nav{display:grid}
  .laptop-lid .kpis{grid-template-columns:repeat(4,minmax(0,1fr))}
  .laptop-lid .kpi:nth-child(3),.laptop-lid .kpi:nth-child(4){border-top:0}
  .laptop-lid .kpi:nth-child(3){border-left:1px solid var(--line-soft)}
  .screens-bar{gap:12px}
  .screens-bar p{font-size:var(--t-base)}
}

/* ---- the menu, below 900px ---------------------------------------------
   Six links do not fit a phone header, so they move behind a button. Above
   900px the button is gone and the nav sits inline as before. */
.nav-toggle{display:none;width:42px;height:42px;flex:none;margin-left:4px;
  border:1px solid var(--line-soft);border-radius:4px;
  align-items:center;justify-content:center;
  transition:border-color .25s var(--ease),background .25s var(--ease)}
.nav-toggle:hover{border-color:var(--line);background:rgba(247,246,244,.05)}
.nav-bars{display:grid;gap:5px;width:17px}
.nav-bars i{display:block;height:1.5px;background:var(--bright);border-radius:2px;
  transition:transform .3s var(--ease),opacity .2s var(--ease)}
[aria-expanded="true"] .nav-bars i:first-child{transform:translateY(3.25px) rotate(45deg)}
[aria-expanded="true"] .nav-bars i:last-child{transform:translateY(-3.25px) rotate(-45deg)}

@media(max-width:900px){
  .nav-toggle{display:inline-flex}
  .site-header{gap:10px}
  .header-cta{margin-left:auto}

  /* Shown and hidden outright rather than animated open. A height transition
     needs a measured height, and getting that wrong leaves the panel stuck
     shut — which is exactly what it did. This cannot fail. */
  .nav{display:none !important;position:absolute;top:100%;left:0;right:0;
    gap:0;margin:0;padding:0 20px;
    background:var(--ink);border-bottom:1px solid var(--line);
    max-height:80vh;overflow-y:auto;
    box-shadow:0 24px 40px -28px #000}
  body.nav-open .nav{display:grid !important;animation:navIn .22s var(--ease)}
  @keyframes navIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

  .nav a{padding:15px 2px;border-top:1px solid var(--line-soft);font-size:var(--t-xl);
    color:var(--mid)}
  .nav a:first-child{border-top:0}
  .nav a:hover,.nav a:focus-visible{color:var(--bright)}
}
@media(max-width:560px){
  .header-cta{min-height:38px;padding:0 13px;font-size:var(--t-sm)}
}

/* Small shared classes. These were style attributes on the markup until
   2026-09-08; they moved here so the page needs no 'unsafe-inline' in
   its style policy, and so a size change happens in one place. */
.btn .arw.arw-down{width:9px;height:15px}
.icon-sm{width:15px;height:15px;flex:none}
.lede.tight{margin-top:6px}
.lede.centred{text-align:center}
.note{color:var(--dim);font-size:var(--t-base);max-width:46ch}
.note.centred{text-align:center;max-width:none}
.count-tag{font-size:var(--t-xs);color:var(--dim)}
.sect-head.flush{margin:0}
.btn.inline-start{justify-self:start;margin-top:6px}
.text-link{color:var(--mid);text-decoration:underline;text-underline-offset:3px}
.next-steps.flush{border-top:0;padding-top:0}
.next-steps.flush-sm{border-top:0;padding-top:18px}