/* Roier design system — light theme, lime accent (ТЗ §10). */
:root{
  --green:#9AC93A; --green-hover:#8AB52F; --green-soft:#EAF3D6;
  --ink:#23262B; --muted:#6B7280; --bg:#FFFFFF; --bg-soft:#F4F6F8;
  --footer:#1C1F24; --line:#E6E9EF; --ok:#3FB950; --err:#E5484D;
  --on-green-ink:#1F2A12;
  --radius:16px; --radius-pill:28px; --container:1180px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,'SF Mono',Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%;display:block}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--soft{background:var(--bg-soft)}
.section--band{background:var(--green);position:relative;overflow:hidden;
  color:var(--on-green-ink)}
.section--band h2{color:#fff}
.section--band .deco{position:absolute;inset:0;pointer-events:none;opacity:.5}
.section--band .deco span{position:absolute;border:1px solid rgba(255,255,255,.4);
  border-radius:50%}
.eyebrow{color:var(--green);font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;font-size:13px;text-align:center;margin-bottom:12px}
.section--band .eyebrow{color:#fff;opacity:.9}
h1{font-size:46px;line-height:1.15;font-weight:800;letter-spacing:-.02em}
h2{font-size:34px;font-weight:800;text-align:center;letter-spacing:-.01em}
h3{font-size:20px;font-weight:700}
.lead{font-size:19px;color:var(--muted);max-width:620px}
.section h2 + .sub{text-align:center;color:var(--muted);max-width:680px;
  margin:14px auto 0}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;
  font-size:16px;padding:14px 28px;border-radius:var(--radius-pill);
  border:0;cursor:pointer;transition:.15s;font-family:inherit}
.btn--primary{background:var(--green);color:#fff}
.btn--primary:hover{background:var(--green-hover)}
.btn--ghost{background:transparent;color:var(--ink);
  border:1.5px solid var(--line)}
.btn--ghost:hover{border-color:var(--ink)}
.section--band .btn--primary{background:#fff;color:var(--on-green-ink)}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.hdr .container{display:flex;align-items:center;height:68px;gap:32px}
.logo{font-weight:800;font-size:22px;letter-spacing:-.02em}
.logo b{color:var(--green)}
.nav{display:flex;gap:26px;margin-left:auto;font-weight:600;font-size:15px}
.nav a{color:var(--muted)}.nav a:hover{color:var(--ink)}
.hdr .btn{padding:10px 20px;font-size:15px}

/* hero */
.hero{padding:80px 0 72px}
.hero .container{display:grid;grid-template-columns:1.1fr .9fr;
  gap:48px;align-items:center}
.hero .cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-art{aspect-ratio:1;background:
  radial-gradient(circle at 60% 40%,var(--green-soft),transparent 70%)}

/* grids & cards */
.grid{display:grid;gap:24px;margin-top:48px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px}
.section--soft .card{background:#fff}
.card .ic{width:46px;height:46px;border-radius:12px;background:var(--green-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
  color:var(--green);font-size:22px;font-weight:800}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}
.section--band .card{background:rgba(255,255,255,.96);color:var(--ink)}

/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(3,1fr);
  gap:24px;margin-top:48px}
.step{background:rgba(255,255,255,.96);border-radius:var(--radius);padding:28px;
  position:relative;color:var(--ink)}
.step::before{counter-increment:s;content:counter(s);position:absolute;
  top:-16px;left:24px;width:34px;height:34px;border-radius:50%;
  background:var(--ink);color:#fff;display:flex;align-items:center;
  justify-content:center;font-weight:800}

/* logo row */
.logos{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;
  margin-top:40px}
.logos span{background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:16px 26px;font-weight:700;color:var(--muted)}

/* clients / config tabs */
.tabs{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:40px}
.tab{padding:10px 18px;border:1px solid var(--line);border-radius:var(--radius-pill);
  cursor:pointer;background:#fff;font-weight:600}
.tab.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}
pre{background:#0E1116;color:#E6E9EF;border-radius:var(--radius);padding:22px;
  overflow:auto;font-family:var(--mono);font-size:14px;margin-top:20px}
.copy{margin-top:12px}

/* faq */
.faq{max-width:780px;margin:44px auto 0}
.faq details{background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:18px 22px;margin-bottom:12px}
.faq summary{font-weight:700;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq p{color:var(--muted);margin-top:10px}

/* request form */
.form{max-width:560px;margin:36px auto 0;display:grid;gap:14px}
.form input,.form textarea{font:inherit;padding:14px 16px;border-radius:12px;
  border:1px solid var(--line);background:#fff;width:100%}
.form .hp{position:absolute;left:-9999px}
.note{font-size:14px;color:var(--muted);text-align:center;margin-top:10px}
.section--band .form input,.section--band .form textarea{border:0}

/* footer */
.ft{background:var(--footer);color:#AEB4BE;padding:54px 0}
.ft .container{display:flex;justify-content:space-between;gap:32px;
  flex-wrap:wrap}
.ft a{color:#AEB4BE}.ft a:hover{color:#fff}
.ft .logo{color:#fff}

/* cabinet */
.cab{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.cab-side{background:var(--bg-soft);border-right:1px solid var(--line);padding:24px}
.cab-side .logo{margin-bottom:28px}
.cab-side a{display:block;padding:10px 14px;border-radius:10px;color:var(--muted);
  font-weight:600;margin-bottom:4px}
.cab-side a.is-active,.cab-side a:hover{background:#fff;color:var(--ink)}
.cab-main{padding:36px 44px;max-width:980px}
.cab-main h1{font-size:30px;margin-bottom:24px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  margin-bottom:28px}
.metric{background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:22px}
.metric .v{font-size:30px;font-weight:800}
.metric .k{color:var(--muted);font-size:14px}
table{width:100%;border-collapse:collapse;background:#fff;
  border:1px solid var(--line);border-radius:14px;overflow:hidden}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);
  font-size:15px}
th{background:var(--bg-soft);font-size:13px;text-transform:uppercase;
  letter-spacing:.04em;color:var(--muted)}
tr:last-child td{border-bottom:0}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;
  font-weight:700}
.badge--ok{background:#E7F6EA;color:var(--ok)}
.badge--err{background:#FCEBEC;color:var(--err)}
.flash{padding:12px 16px;border-radius:10px;margin-bottom:18px;font-weight:600}
.flash--ok{background:#E7F6EA;color:#1b6b2c}
.flash--err{background:#FCEBEC;color:#a3262b}
.empty{color:var(--muted);padding:28px;text-align:center;background:#fff;
  border:1px dashed var(--line);border-radius:14px}

@media(max-width:992px){
  .hero .container,.grid-3,.grid-2,.steps,.metrics{grid-template-columns:1fr}
  .hero-art{display:none}.cab{grid-template-columns:1fr}
  .cab-side{border-right:0;border-bottom:1px solid var(--line)}
}
@media(max-width:768px){
  h1{font-size:34px}h2{font-size:27px}.section{padding:60px 0}
  .nav{display:none}
}