/* Superimpose Technologies — site styles
   Tokens extracted from the existing homepage (SKILL.md §2). */

/* Self-hosted fonts (SIL Open Font License). Latin subset. */
@font-face{font-family:'Space Grotesk';font-weight:500;font-style:normal;font-display:swap;src:url("../fonts/space-grotesk-latin-500-normal.woff2") format("woff2");}
@font-face{font-family:'Space Grotesk';font-weight:600;font-style:normal;font-display:swap;src:url("../fonts/space-grotesk-latin-600-normal.woff2") format("woff2");}
@font-face{font-family:'IBM Plex Sans';font-weight:400;font-style:normal;font-display:swap;src:url("../fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");}
@font-face{font-family:'IBM Plex Sans';font-weight:500;font-style:normal;font-display:swap;src:url("../fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");}
@font-face{font-family:'IBM Plex Sans';font-weight:600;font-style:normal;font-display:swap;src:url("../fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");}
@font-face{font-family:'JetBrains Mono';font-weight:400;font-style:normal;font-display:swap;src:url("../fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");}
@font-face{font-family:'JetBrains Mono';font-weight:500;font-style:normal;font-display:swap;src:url("../fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2");}

:root{
  --bg-void:#06080d;
  --bg-panel:#0c1119;
  --bg-panel-2:#101724;
  --line:#1b2433;
  --line-soft:#151d2a;
  --ink:#ecedf3;
  --ink-dim:#aab1c0;
  --ink-mute:#8791a5;      /* lightened from #6d7688 to meet 4.5:1 on --bg-void */
  --ember:#ff7a29;
  --ember-hi:#ffab6b;
  --ember-deep:#c9501a;
  --blue:#3e9df0;
  --blue-hi:#7ec2ff;
  --blue-deep:#1d5fa8;
  --err:#ff8a80;
  --ok:#7fd8a0;
  --font-display:'Space Grotesk','Helvetica Neue',Arial,sans-serif;
  --font-body:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;
  --header-h:76px;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 24px);}
body{
  background:var(--bg-void);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
/* faint circuit-grid ambience */
body::before{
  content:"";
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:.35;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, black 0%, transparent 70%);
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, black 0%, transparent 70%);
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}

.wrap{
  max-width:1200px;margin:0 auto;
  padding:0 max(32px, env(safe-area-inset-right)) 0 max(32px, env(safe-area-inset-left));
  position:relative;z-index:1;
}

.skip-link{
  position:absolute;left:16px;top:-60px;z-index:100;
  background:var(--ember);color:#0a0603;font-weight:600;
  padding:12px 18px;border-radius:3px;
}
.skip-link:focus{top:12px;}

.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ember-hi);
}
.eyebrow.blue{color:var(--blue-hi);}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(6,8,13,.78);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  padding-top:env(safe-area-inset-top);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:20px;}
.brand{display:flex;align-items:center;gap:12px;min-height:44px;}
.brand img{height:34px;width:34px;}
.brand-word{font-family:var(--font-display);font-weight:600;font-size:17px;letter-spacing:.01em;}
.brand-word span{color:var(--ink-mute);font-weight:400;}

.nav-links{display:flex;align-items:center;gap:32px;font-size:14px;color:var(--ink-dim);list-style:none;}
.nav-links a{position:relative;padding:12px 0;transition:color .2s ease;display:inline-block;}
.nav-links a:hover{color:var(--ink);}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:6px;width:0;height:1px;
  background:var(--ember);transition:width .25s ease;
}
.nav-links a:hover::after{width:100%;}
.nav-cta{display:flex;align-items:center;gap:12px;}

.menu-toggle{
  display:none;width:44px;height:44px;
  background:transparent;border:1px solid var(--line);border-radius:3px;
  color:var(--ink);cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle:hover{border-color:var(--blue);}
.menu-toggle svg{width:22px;height:22px;}
.menu-toggle .icon-close{display:none;}
.menu-toggle[aria-expanded="true"] .icon-open{display:none;}
.menu-toggle[aria-expanded="true"] .icon-close{display:block;}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-weight:600;font-size:14px;
  min-height:44px;padding:11px 20px;border-radius:3px;cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
  white-space:nowrap;border:1px solid transparent;
}
.btn-primary{
  background:linear-gradient(135deg, var(--ember) 0%, var(--ember-deep) 100%);
  color:#0a0603;
}
.btn-primary:hover{box-shadow:0 6px 24px -4px rgba(255,122,41,.5);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue-hi);}
.btn-sm{padding:9px 16px;font-size:13px;}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none;}

:focus-visible{outline:2px solid var(--blue);outline-offset:3px;}

/* ---------- HERO ---------- */
.hero{position:relative;padding:40px 0 56px;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.hero h1{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(38px, 5vw, 62px);line-height:1.06;letter-spacing:-.01em;
  margin:18px 0 22px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg, var(--ember-hi), var(--ember) 55%, var(--blue) 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .lead{font-size:17px;color:var(--ink-dim);max-width:500px;margin-bottom:34px;}
.hero-cta{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:44px;}
.hero-tags{
  display:flex;gap:12px 26px;flex-wrap:wrap;list-style:none;
  font-family:var(--font-mono);font-size:12px;color:var(--ink-dim);letter-spacing:.04em;
}
.hero-tags li{display:flex;align-items:center;gap:8px;}
.dot{width:5px;height:5px;border-radius:50%;background:var(--ember);display:inline-block;flex:none;}
.dot.b{background:var(--blue);}

.hero-art{position:relative;display:flex;align-items:center;justify-content:center;min-height:460px;}
.hero-art svg{position:absolute;inset:0;width:100%;height:100%;}
.hero-art img{
  position:relative;z-index:2;width:min(360px, 80%);
  filter:drop-shadow(0 30px 60px rgba(0,0,0,.6));
  animation:float 7s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-14px);}}

.trace{
  fill:none;stroke-width:1.4;stroke-linecap:round;
  stroke-dasharray:420;stroke-dashoffset:420;opacity:0;
  animation:draw 3.2s ease-out forwards;
  mix-blend-mode:screen;
}
.trace.blue{stroke:var(--blue);}
.trace.ember{stroke:var(--ember);}
.trace.t2{animation-delay:.25s;}.trace.t3{animation-delay:.5s;}.trace.t4{animation-delay:.75s;}
@keyframes draw{
  from{stroke-dashoffset:420;opacity:0;}
  15%{opacity:.7;}
  to{stroke-dashoffset:0;opacity:.7;}
}
.node{
  fill:var(--bg-void);stroke-width:1.4;opacity:0;
  transform-box:fill-box;transform-origin:center;
  animation:pop .4s ease-out forwards;animation-delay:3.2s;
}
.node.blue{stroke:var(--blue);}
.node.ember{stroke:var(--ember);}
@keyframes pop{from{opacity:0;transform:scale(0);}to{opacity:1;transform:scale(1);}}

/* ---------- POSITIONING STRIP ---------- */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;background:var(--bg-panel);}
.strip .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.strip-line{font-family:var(--font-display);font-size:18px;max-width:440px;}
.chips{display:flex;gap:12px;flex-wrap:wrap;list-style:none;}
.chip{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.05em;color:var(--ink-dim);
  border:1px solid var(--line);border-radius:3px;padding:8px 14px;background:var(--bg-panel-2);
}

/* ---------- SECTIONS ---------- */
.section{position:relative;padding:80px 0;}
.sec-head{max-width:620px;margin-bottom:44px;}
.sec-head h2{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(28px,3.4vw,40px);line-height:1.15;letter-spacing:-.01em;margin-top:14px;
}
.sec-head p{color:var(--ink-dim);font-size:15.5px;margin-top:14px;max-width:540px;}

/* hairline grids */
.grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);list-style:none;
}
.cell{
  position:relative;display:flex;flex-direction:column;
  background:var(--bg-void);padding:30px;transition:background .25s ease;
}
.cell:hover{background:var(--bg-panel);}

.products{background:linear-gradient(180deg,rgba(16,23,36,.72),rgba(6,8,13,.96));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head.wide{max-width:720px;}
.product-card{min-height:260px;}
.product-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:24px;}
.product-index{font:11px var(--font-mono);letter-spacing:.1em;color:var(--ink-mute);}
.product-type{
  font:10px var(--font-mono);letter-spacing:.08em;text-transform:uppercase;
  color:var(--blue-hi);border:1px solid var(--line);padding:6px 9px;border-radius:2px;
}
.product-card:nth-child(odd) .product-type{color:var(--ember-hi);}
.product-card h3{font:600 22px var(--font-display);margin-bottom:11px;letter-spacing:-.02em;}
.product-card p{font-size:14px;line-height:1.7;color:var(--ink-dim);max-width:360px;}
.product-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:auto;padding-top:24px;
  font:12px var(--font-mono);letter-spacing:.04em;color:var(--ink-dim);min-height:44px;
}
.product-link:hover{color:var(--ember-hi);}

.svc-card{padding:34px 30px 30px;}
.svc-icon{width:38px;height:38px;margin:0 0 20px;color:var(--ember);}
.svc-card:nth-child(3n-1) .svc-icon{color:var(--blue);}
.svc-card h3{font-family:var(--font-display);font-size:18px;font-weight:600;margin-bottom:10px;}
.svc-card p{font-size:14px;color:var(--ink-dim);line-height:1.65;}

/* approach */
/* Sections that follow another padded section: the section above already supplies the gap,
   so no top padding (stops the gap doubling). */
.section.section--flush,.section.approach{padding-top:0;}
/* Follows the bordered Products band, so it needs a gap of its own (smaller than the default) */
.section.section--after-band{padding-top:56px;}
/* Nav jumps: scroll-margin cancels each section's own top padding, so the section title
   lands just under the sticky header (scroll-padding-top) with only a small gap. */
.products{scroll-margin-top:-80px;}
.section.section--after-band{scroll-margin-top:-56px;} /* it has its own top padding, so offset to match */
.track{position:relative;display:grid;grid-template-columns:repeat(4,1fr);list-style:none;}
.track::before{
  content:"";position:absolute;top:11px;left:0;right:0;height:1px;background:var(--line);
}
.step{position:relative;padding-right:24px;}
.step-node{
  width:22px;height:22px;border-radius:50%;background:var(--bg-void);
  border:2px solid var(--ember);margin-bottom:22px;position:relative;z-index:1;
}
.step:nth-child(2n) .step-node{border-color:var(--blue);}
.step-num{font-family:var(--font-mono);font-size:12px;color:var(--ink-mute);letter-spacing:.08em;}
.step h3{font-family:var(--font-display);font-size:19px;font-weight:600;margin:8px 0 10px;}
.step p{font-size:14px;color:var(--ink-dim);line-height:1.65;max-width:240px;}

/* proof */
.proof{background:var(--bg-panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:90px 0;}
.quote-card{max-width:760px;margin:0 auto;text-align:center;}
.quote-mark{font-family:var(--font-display);font-size:64px;line-height:1;color:var(--ember);opacity:.7;}
.quote-card blockquote{
  font-family:var(--font-display);font-size:clamp(22px,2.6vw,30px);font-weight:500;line-height:1.4;
}
.quote-attr{margin-top:26px;font-family:var(--font-mono);font-size:13px;color:var(--ink-mute);letter-spacing:.04em;}
.quote-attr strong{color:var(--ink-dim);font-weight:500;}

/* contact */
.contact{
  background:
    radial-gradient(ellipse 60% 90% at 20% 0%, rgba(255,122,41,.16), transparent 60%),
    radial-gradient(ellipse 60% 90% at 80% 100%, rgba(62,157,240,.14), transparent 60%);
}
.cta-head{text-align:center;margin:0 auto 48px;max-width:640px;}
.cta-head h2{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(30px,4vw,48px);line-height:1.1;letter-spacing:-.01em;margin:14px 0 16px;
}
.cta-head p{color:var(--ink-dim);font-size:16px;max-width:480px;margin:0 auto;}

.form{
  max-width:640px;margin:0 auto;background:var(--bg-panel);
  border:1px solid var(--line);border-radius:3px;padding:32px;
}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;}
.field .req{color:var(--ember-hi);}
.field input[type="text"],.field input[type="email"],.field textarea{
  width:100%;background:var(--bg-panel-2);color:var(--ink);
  border:1px solid var(--line);border-radius:3px;
  padding:12px 14px;font:inherit;font-size:15px;min-height:44px;
}
.field textarea{min-height:120px;resize:vertical;}
.field input:focus,.field textarea:focus{outline:2px solid var(--blue);outline-offset:1px;border-color:var(--blue);}
.field[data-invalid="true"] input,.field[data-invalid="true"] textarea{border-color:var(--err);}
.field-error{color:var(--err);font-size:13px;margin-top:6px;display:none;}
.field[data-invalid="true"] .field-error{display:block;}
.check{display:flex;gap:12px;align-items:flex-start;font-size:13.5px;color:var(--ink-dim);margin-bottom:20px;}
.check input{width:20px;height:20px;margin-top:2px;accent-color:var(--ember);flex:none;}
.privacy-note{font-size:13px;color:var(--ink-dim);margin-bottom:22px;line-height:1.6;}
.privacy-note a,.legal a,.contact-alt a{color:var(--blue-hi);text-decoration:underline;text-underline-offset:3px;}
.form-status{margin-top:18px;font-size:14px;}
.form-status.ok{color:var(--ok);}
.form-status.bad{color:var(--err);}
.contact-alt{text-align:center;margin-top:26px;color:var(--ink-dim);font-size:14px;}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;}

/* ---------- WHATSAPP CLICK-TO-CHAT ---------- */
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.wa-float{
  position:fixed;z-index:40;
  right:max(20px, env(safe-area-inset-right));bottom:max(20px, env(safe-area-inset-bottom));
  display:inline-flex;align-items:center;gap:10px;min-height:48px;min-width:48px;
  padding:0 18px 0 14px;border-radius:3px;
  background:var(--bg-panel-2);color:var(--blue-hi);border:1px solid var(--blue);
  font-weight:600;font-size:14px;box-shadow:0 8px 28px -8px rgba(0,0,0,.7);
  transition:background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
}
.wa-float svg{width:24px;height:24px;flex:none;}
.wa-float:hover{border-color:var(--ember);color:var(--ember-hi);transform:translateY(-1px);}

/* ---------- FOOTER ---------- */
.site-footer{
  border-top:1px solid var(--line);padding:64px 0 calc(32px + env(safe-area-inset-bottom));
  position:relative;z-index:1;
}
.foot-top{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{color:var(--ink-mute);font-size:13.5px;max-width:260px;line-height:1.6;}
.foot-col h3{
  font-family:var(--font-mono);font-size:11.5px;font-weight:400;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-mute);margin-bottom:12px;
}
.foot-col ul{list-style:none;}
.foot-col a{display:inline-block;font-size:14px;color:var(--ink-dim);padding:6px 0;transition:color .2s ease;}
.foot-col a:hover{color:var(--ember-hi);}
.foot-col address{font-style:normal;font-size:14px;color:var(--ink-dim);padding:6px 0;}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:26px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;
  font-size:12.5px;color:var(--ink-mute);font-family:var(--font-mono);
}
.foot-legal{display:flex;gap:18px;flex-wrap:wrap;list-style:none;}
.foot-legal a{padding:10px 0;display:inline-block;}
.foot-legal a:hover{color:var(--ink);}

/* ---------- LEGAL PAGE ---------- */
.legal{padding:40px 0 96px;}
.legal-inner{max-width:760px;}
.legal h1{font-family:var(--font-display);font-weight:600;font-size:clamp(32px,4vw,46px);line-height:1.1;margin:14px 0 18px;}
.legal h2{font-family:var(--font-display);font-weight:600;font-size:26px;margin:56px 0 14px;padding-top:24px;border-top:1px solid var(--line);}
.legal h3{font-family:var(--font-display);font-size:18px;margin:26px 0 8px;}
.legal p,.legal li{color:var(--ink-dim);font-size:15.5px;line-height:1.7;margin-bottom:12px;}
.legal ul{padding-left:22px;margin-bottom:12px;}
.legal .draft{
  border:1px solid var(--ember-deep);background:rgba(255,122,41,.07);
  padding:16px 18px;border-radius:3px;color:var(--ink);font-size:14.5px;margin:22px 0 8px;
}
.legal .toc{list-style:none;display:flex;flex-wrap:wrap;gap:8px 18px;padding:0;margin:24px 0 0;}
.legal .toc a{font-family:var(--font-mono);font-size:12.5px;color:var(--ink-dim);text-decoration:none;}
.legal .toc a:hover{color:var(--ember-hi);}
.legal p,.legal li,.legal td{overflow-wrap:anywhere;}
.table-wrap{overflow-x:auto;margin:12px 0 18px;}
.legal table{width:100%;min-width:480px;border-collapse:collapse;font-size:14px;}
.legal th,.legal td{border:1px solid var(--line);padding:10px 12px;text-align:left;color:var(--ink-dim);}
.legal th{background:var(--bg-panel-2);color:var(--ink);font-weight:500;}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1100px){
  .foot-top{grid-template-columns:1.2fr 1fr 1fr;row-gap:32px;}
}
@media (max-width:900px){
  .grid{grid-template-columns:1fr 1fr;}
  .track{grid-template-columns:1fr 1fr;row-gap:36px;}
  .track::before{display:none;}
}
@media (max-width:860px){
  .menu-toggle{display:inline-flex;}
  .nav-cta .btn{display:none;}
  .nav-links{
    /* absolute, not fixed: the header's backdrop-filter makes it the containing block */
    display:none;position:absolute;top:100%;left:0;right:0;
    height:calc(100vh - var(--header-h) - env(safe-area-inset-top));
    height:calc(100dvh - var(--header-h) - env(safe-area-inset-top));
    background:var(--bg-void);flex-direction:column;align-items:stretch;gap:0;
    padding:16px 32px 32px;font-size:18px;overflow-y:auto;z-index:49;
  }
  .nav-links.open{display:flex;}
  .nav-links li{border-bottom:1px solid var(--line);}
  .nav-links a{display:block;padding:18px 0;}
  .nav-links a::after{display:none;}
  .nav-links .nav-links-cta{border-bottom:0;padding-top:24px;}
  .nav-links .nav-links-cta .btn{display:inline-flex;width:100%;}
  .hero{padding:16px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:16px;}
  .hero-art{order:-1;min-height:240px;}
  .hero-art img{width:min(200px, 55%);}
}
@media (min-width:861px){
  .nav-links .nav-links-cta{display:none;}
}
@media (max-width:700px){
  .foot-top{grid-template-columns:1fr 1fr;}
  .foot-brand{grid-column:1 / -1;}
}
@media (max-width:560px){
  .wa-float{padding:0 11px;}
  .wa-label{display:none;}
  .wrap{padding-left:max(20px, env(safe-area-inset-left));padding-right:max(20px, env(safe-area-inset-right));}
  .section{padding:56px 0;}
  .products{scroll-margin-top:-56px;}
  .proof{padding:64px 0;}
  .grid{grid-template-columns:1fr;}
  .product-card{min-height:220px;}
  .track{grid-template-columns:1fr;}
  .brand-word{font-size:14px;}
  .strip .wrap{flex-direction:column;align-items:flex-start;}
  .form{padding:22px 18px;}
  .foot-top{grid-template-columns:1fr;}
  .nav-links{padding-left:20px;padding-right:20px;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .hero-art img{animation:none;}
  .trace{animation:none;stroke-dashoffset:0;opacity:.7;}
  .node{animation:none;opacity:1;transform:none;}
  *{transition-duration:.001ms !important;}
}

@media (forced-colors: active){
  .btn-primary{border-color:ButtonText;}
  .hero h1 em{color:inherit;background:none;}
}

@media print{
  body::before,.site-header,.skip-link{display:none;}
  body{background:#fff;color:#000;}
  .wa-float{display:none;}
  .legal p,.legal li,.legal td,.legal th{color:#000;}
}