/* Robo Demo — site styles */
:root{
  --bg:#141517;
  --bg-2:#1b1b1b;
  --bg-3:#1f232a;
  --ink:#f3f4f6;
  --ink-2:#b9bec7;
  --ink-3:#7f8794;
  --line:rgba(255,255,255,.08);
  --accent:#e8452c;
  --accent-2:#ff5f47;
  --paper:#fbfaf7;
  --paper-2:#f2f3f5;
  --paper-ink:#1b1b1b;
  --paper-ink-2:#4b5260;
  --max:1200px;
  --radius:4px;
  --font:"Inter","Helvetica Neue",Arial,sans-serif;
  --display:"Barlow Condensed","Arial Narrow",Impact,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.6;font-size:17px;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-size:15px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:800}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--accent)}
h1,h2,h3,h4{font-family:var(--display);font-weight:800;letter-spacing:-.005em;line-height:1;text-transform:uppercase}
h1{font-size:clamp(48px,7vw,96px)}
h2{font-size:clamp(38px,5vw,66px)}
h3{font-size:clamp(24px,2.3vw,30px);letter-spacing:.01em;line-height:1.1}
p.lead{font-size:clamp(18px,1.6vw,22px);color:var(--ink-2);max-width:62ch}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 28px;font-family:var(--display);font-weight:800;font-size:18px;letter-spacing:.06em;text-transform:uppercase;border-radius:var(--radius);transition:.2s;border:2px solid transparent;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-2)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-dark{background:var(--paper-ink);color:#fff}
.btn-dark:hover{background:#000}
.btn svg{width:18px;height:18px}

/* Header */
.header{position:sticky;top:0;z-index:50;background:rgba(15,17,20,.85);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo{display:flex;align-items:center}
.logo img{height:54px;width:auto;display:block}
.footer .logo img{height:64px}
.nav{display:flex;align-items:center;gap:34px}
.nav a{font-size:15px;font-weight:600;color:var(--ink-2);transition:.2s}
.nav a:hover,.nav a[aria-current="page"]{color:#fff}
.nav .btn{padding:11px 20px;font-size:16px}
.burger{display:none;background:none;border:0;color:#fff;width:44px;height:44px;cursor:pointer}
.burger svg{width:28px;height:28px;margin:auto}
.phone-top{display:flex;align-items:center;gap:8px;font-weight:700;color:#fff}
.phone-top svg{width:18px;height:18px;color:var(--accent)}

/* Hero */
.hero{position:relative;min-height:calc(100vh - 80px);display:flex;align-items:center;overflow:hidden;background:#0b0d10}
.hero-bg{position:absolute;top:0;bottom:0;right:0;left:38%;z-index:0}
.hero-bg svg{width:100%;height:100%}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,13,16,1) 0%,rgba(11,13,16,1) 34%,rgba(11,13,16,.55) 52%,rgba(11,13,16,.15) 100%);z-index:1}
@media (max-width:1000px){.hero-bg{left:0;opacity:.35}.hero::after{background:linear-gradient(180deg,rgba(11,13,16,.7),rgba(11,13,16,.9))}}
.hero .wrap{position:relative;z-index:2;padding:110px 0 90px}
.hero h1{max-width:15ch;margin:22px 0 26px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:40px}
.hero-stats{display:flex;gap:48px;margin-top:70px;flex-wrap:wrap}
.hero-stats div strong{display:block;font-family:var(--display);font-size:44px;font-weight:900;font-style:italic;letter-spacing:-.01em;line-height:1}
.hero-stats div span{font-size:14px;color:var(--ink-3);text-transform:uppercase;letter-spacing:.1em}

/* Sections */
.section{padding:110px 0}
.section.paper{background:var(--paper);color:var(--paper-ink)}
.section.paper .eyebrow{color:var(--accent)}
.section.paper p.lead{color:var(--paper-ink-2)}
.section.paper-2{background:var(--paper-2);color:var(--paper-ink)}
.section.paper-2 p.lead{color:var(--paper-ink-2)}
.section.dark-2{background:var(--bg-2)}
.section-head{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:end;margin-bottom:64px}
.section-head h2{margin-top:18px}

/* Marquee strip */
.strip{background:var(--accent);color:#fff;padding:14px 0;overflow:hidden;white-space:nowrap;font-family:var(--display);font-weight:800;text-transform:uppercase;letter-spacing:.14em;font-size:18px}
.strip .track{display:inline-block;animation:scroll 40s linear infinite}
.strip span{margin:0 34px}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* Cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.card{background:var(--bg-3);border:1px solid var(--line);padding:38px 34px;border-radius:var(--radius);transition:.25s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-4px);border-color:rgba(230,59,46,.5)}
.card .ico{width:52px;height:52px;color:var(--accent);margin-bottom:26px}
.card h3{margin-bottom:12px}
.card p{color:var(--ink-2);font-size:16px}
.card .num{position:absolute;top:22px;right:26px;font-size:13px;color:var(--ink-3);letter-spacing:.15em}
.paper .card,.paper-2 .card{background:#fff;border-color:#e6e8ec;color:var(--paper-ink)}
.paper .card p,.paper-2 .card p{color:var(--paper-ink-2)}
.card a.more{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-weight:700;color:var(--accent);font-size:15px;white-space:nowrap}
.card a.more svg{width:18px;height:18px;flex:none}

/* Split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.split .visual{position:relative;aspect-ratio:4/3;background:#0b0d10;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.split .visual svg{width:100%;height:100%}
.checks{margin-top:30px;display:grid;gap:14px}
.checks li{display:flex;gap:14px;align-items:flex-start;font-size:17px}
.checks li svg{flex:none;width:24px;height:24px;color:var(--accent);margin-top:2px}
.paper .checks li,.paper-2 .checks li{color:var(--paper-ink)}

/* Process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid #dfe2e7}
.step{padding:40px 30px 40px 0;border-right:1px solid #dfe2e7;margin-right:30px}
.step:last-child{border-right:0;margin-right:0}
.step .n{font-family:var(--display);font-size:72px;font-weight:900;font-style:italic;color:var(--accent);line-height:1;letter-spacing:-.02em}
.step h3{margin:18px 0 10px}
.step p{color:var(--paper-ink-2);font-size:16px}

/* Applications list */
.apps{display:grid;grid-template-columns:repeat(2,1fr);gap:0 60px}
.apps li{padding:22px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:19px;font-weight:600}
.apps li span{font-size:13px;color:var(--ink-3);font-weight:500;letter-spacing:.1em;text-transform:uppercase}

/* Compare */
.compare{display:grid;grid-template-columns:1fr 1fr;border:1px solid #dfe2e7;border-radius:var(--radius);overflow:hidden}
.compare > div{padding:44px 40px}
.compare .bad{background:#fff}
.compare .good{background:var(--paper-ink);color:#fff}
.compare h3{margin-bottom:22px;display:flex;align-items:center;gap:12px}
.compare li{padding:12px 0;border-bottom:1px solid rgba(0,0,0,.08);font-size:16px}
.compare .good li{border-color:rgba(255,255,255,.1)}
.compare .good h3 span{color:var(--accent)}

/* FAQ */
.faq{max-width:860px}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;padding:20px 0;font-weight:700;font-size:19px;font-family:var(--font)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:28px;color:var(--accent);font-weight:300;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--ink-2);padding:0 0 22px;max-width:70ch}

/* CTA band */
.cta{background:var(--accent);color:#fff;padding:90px 0}
.cta .wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center}
.cta h2{font-size:clamp(30px,4vw,56px)}
.cta p{font-size:19px;opacity:.9;margin-top:14px;max-width:50ch}
.cta .actions{display:flex;gap:16px;flex-wrap:wrap;justify-content:flex-end}
.cta .btn-ghost{border-color:#fff}
.cta .btn-dark:hover{background:#0b0d10}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:72px}
.contact-list{display:grid;gap:26px;margin-top:34px}
.contact-list li{display:flex;gap:18px;align-items:flex-start}
.contact-list svg{width:26px;height:26px;color:var(--accent);flex:none;margin-top:2px}
.contact-list strong{display:block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:4px}
.contact-list a{font-size:20px;font-weight:700}
form.quote{background:var(--bg-3);border:1px solid var(--line);padding:40px;border-radius:var(--radius)}
form.quote .row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
form.quote label{display:block;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin:0 0 8px}
form.quote input,form.quote select,form.quote textarea{width:100%;background:#0f1114;border:1px solid rgba(255,255,255,.14);color:#fff;padding:14px 16px;border-radius:var(--radius);font:inherit;font-size:16px;margin-bottom:20px}
form.quote input:focus,form.quote select:focus,form.quote textarea:focus{outline:none;border-color:var(--accent)}
form.quote textarea{min-height:130px;resize:vertical}
form.quote .note{font-size:13px;color:var(--ink-3);margin-top:14px}

/* Page hero (inner pages) */
.page-hero{background:#0b0d10;padding:100px 0 70px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-size:clamp(38px,5.5vw,68px);max-width:16ch;margin-top:20px}
.page-hero p.lead{margin-top:22px}
.page-hero .bgmark{position:absolute;right:-40px;top:-30px;width:520px;opacity:.07;z-index:1}
.page-hero .bgmark img{width:100%;height:auto}

/* Service detail rows */
.svc-row{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;padding:80px 0;border-bottom:1px solid var(--line)}
.svc-row:last-child{border-bottom:0}
.svc-row:nth-child(even) .visual{order:-1}
.svc-row h2{margin:16px 0 18px;font-size:clamp(28px,3.4vw,44px)}
.svc-row p{color:var(--ink-2)}
.svc-row .visual{aspect-ratio:4/3;background:#0b0d10;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.svc-row .visual svg{width:100%;height:100%}
.specs{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.specs div{border-left:2px solid var(--accent);padding-left:14px}
.specs strong{display:block;font-family:var(--display);font-size:28px;font-weight:800}
.specs span{font-size:13px;color:var(--ink-3);text-transform:uppercase;letter-spacing:.1em}

/* Values */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}

/* Footer */
.footer{background:#0b0d10;border-top:1px solid var(--line);padding:70px 0 30px;color:var(--ink-2);font-size:15px}
.footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:50px}
.footer h4{color:#fff;font-size:16px;letter-spacing:.2em;margin-bottom:18px}
.footer li{margin-bottom:10px}
.footer a:hover{color:#fff}
.footer .logo{margin-bottom:16px}
.footer .bottom{border-top:1px solid var(--line);padding-top:26px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--ink-3)}

/* Utilities */
.mt-40{margin-top:40px}
.mt-60{margin-top:60px}
.center{text-align:center}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.strip .track{animation:none}}

/* Responsive */
@media (max-width:1000px){
  .grid-3,.grid-4,.values{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2){border-right:0;margin-right:0}
  .footer .cols{grid-template-columns:1fr 1fr}
  .section-head{grid-template-columns:1fr;gap:20px}
  .split,.svc-row,.contact-grid,.cta .wrap{grid-template-columns:1fr;gap:40px}
  .svc-row:nth-child(even) .visual{order:0}
  .cta .actions{justify-content:flex-start}
  .compare{grid-template-columns:1fr}
  .apps{grid-template-columns:1fr}
  .nav{display:none;position:absolute;top:80px;left:0;right:0;background:#0f1114;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a{padding:18px 20px;border-top:1px solid var(--line);font-size:17px}
  .nav .btn{margin:16px 20px 20px;justify-content:center}
  .burger{display:flex}
  .phone-top{display:none}
}
@media (max-width:640px){
  body{font-size:16px}
  .logo img{height:44px}
  .footer .logo img{height:56px}
  .wrap{width:calc(100% - 32px)}
  .section{padding:72px 0}
  .hero .wrap{padding:70px 0 60px}
  .hero-stats{gap:28px}
  .grid-3,.grid-4,.grid-2,.values,.steps{grid-template-columns:1fr}
  .step{border-right:0;margin-right:0;border-bottom:1px solid #dfe2e7;padding:30px 0}
  .footer .cols{grid-template-columns:1fr}
  form.quote{padding:26px 20px}
  form.quote .row{grid-template-columns:1fr}
  .specs{grid-template-columns:1fr 1fr}
  .compare > div{padding:30px 22px}
  .btn{padding:14px 22px;font-size:14px}
}