/* ЦИТ - Центр индустриальных технологий. Стиль по UI Kit бренда. */

:root{
  --red:#d5271c; --red-fg-hover:#a81a11; --red-bg-hover:#b31f15;
  --graphite:#1b1d21; --graphite-hover:#33363c; --steel:#5c6169;
  --bg:#e9e6e0; --bg-2:#f4f1ea; --surface:#fdfcfa; --rose:#fbe3e0;
  --gray:#9ca1a8; --line:rgba(0,0,0,.09); --line-2:rgba(0,0,0,.14);
  --text:#1b1d21; --text-body:#3a3d42; --text-muted:#6b7078; --on-dark:#c8ccd2;
  --radius:12px; --maxw:1160px;
  --sans:'Manrope',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.5;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:var(--red);text-decoration:none}
a:hover{color:var(--red-fg-hover)}
img,svg{max-width:100%;display:block}
h1,h2,h3{margin:0;letter-spacing:-.01em}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section--tight{padding:48px 0}
.eyebrow{font:600 11px/1 var(--mono);letter-spacing:.2em;color:var(--red);text-transform:uppercase;margin-bottom:12px}
.section-title{font-weight:800;font-size:clamp(26px,3.4vw,38px);letter-spacing:-.02em;margin-bottom:14px}
.section-lead{font-size:17px;line-height:1.6;color:var(--text-muted);max-width:640px}

/* ===== HEADER ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(233,230,224,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:66px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.mark{width:30px;height:30px;display:flex;flex-direction:column;gap:3.5px;justify-content:center;flex:none}
.mark i{height:5.5px;transform:skewX(-20deg);display:block}
.mark i:nth-child(1){background:var(--red)}
.mark i:nth-child(2){background:var(--graphite)}
.mark i:nth-child(3){background:var(--graphite);opacity:.5}
.brand b{font-weight:800;font-size:15px;letter-spacing:.01em}
.brand span{font:500 10px/1 var(--mono);color:var(--text-muted);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-weight:500;font-size:14px;color:var(--text-muted)}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-cta{background:var(--red);font-weight:700;font-size:13px;padding:10px 18px;border-radius:calc(var(--radius) - 2px)}
.nav-links a.nav-cta,.nav-links a.nav-cta:hover,.nav-links a.nav-cta.active{color:#fff}
.nav-links a.nav-cta:hover{background:var(--red-bg-hover)}
.burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.burger i{width:22px;height:2px;background:var(--graphite);display:block}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;gap:9px;border:none;cursor:pointer;font-family:var(--sans);font-weight:700;font-size:15px;padding:14px 26px;border-radius:var(--radius);transition:.15s}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-bg-hover);color:#fff}
.btn-dark{background:var(--graphite);color:#fff}
.btn-dark:hover{background:var(--graphite-hover);color:#fff}
.btn-ghost{background:transparent;color:var(--text);border:1.5px solid rgba(0,0,0,.2)}
.btn-ghost:hover{border-color:var(--graphite);color:var(--text)}
.btn-ghost-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.3)}
.btn-ghost-light:hover{border-color:#fff;color:#fff}
.btn-text{background:none;color:var(--red);padding:14px 4px}
.btn-text:hover{color:var(--red-fg-hover)}

/* ===== HERO ===== */
.hero{background:var(--graphite);border-radius:0;color:#fff;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:30px 30px;pointer-events:none}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:1;pointer-events:none}
.hero-veil{position:absolute;inset:0;z-index:2;pointer-events:none;background:linear-gradient(90deg,var(--graphite) 0%,rgba(27,29,33,.9) 22%,rgba(27,29,33,.45) 50%,rgba(27,29,33,.08) 78%)}
.hero-inner{position:relative;z-index:3;padding:96px 0 104px}
.hero-content{position:relative;max-width:680px}
.pill{display:inline-block;background:rgba(255,255,255,.08);color:#fff;font:600 11px/1 var(--mono);letter-spacing:.12em;padding:8px 15px;border-radius:999px;margin-bottom:24px;text-transform:uppercase}
.hero h1{font-weight:800;font-size:clamp(34px,5.4vw,56px);line-height:1.04;letter-spacing:-.02em;margin-bottom:22px}
.hero h1 em{color:var(--red);font-style:normal}
.hero p{font-size:18px;line-height:1.6;color:var(--on-dark);max-width:520px;margin:0 0 32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===== GRID / CARDS ===== */
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:28px}
.card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.card p{font-size:14px;line-height:1.6;color:var(--text-muted);margin:0}
.card-ico{width:46px;height:46px;border-radius:11px;background:var(--rose);display:flex;align-items:center;justify-content:center;margin-bottom:18px;flex:none}
.card-ico svg{width:23px;height:23px;stroke:var(--red);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card--dark{background:var(--graphite);color:#fff;border-color:transparent}
.card--dark p{color:var(--on-dark)}
.card-num{font:500 10px/1 var(--mono);letter-spacing:.14em;color:var(--gray);text-transform:uppercase;margin-bottom:12px}

/* metric */
.metric{background:var(--graphite);border-radius:14px;padding:28px;color:#fff;display:flex;flex-direction:column;justify-content:space-between;gap:24px;min-height:170px}
.metric .big{font-weight:800;font-size:46px;letter-spacing:-.02em;line-height:1}
.metric .big em{color:var(--red);font-style:normal}
.metric small{display:block;font-size:13px;color:var(--on-dark);margin-top:6px}

/* list of software */
.sw-list{display:grid;gap:12px}
.sw-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px 22px;display:flex;gap:18px;align-items:flex-start}
.sw-item .tag{font:600 11px/1 var(--mono);color:var(--red);letter-spacing:.08em;padding-top:3px;width:118px;flex:none;text-transform:uppercase}
.sw-item h4{margin:0 0 5px;font-size:16px;font-weight:700}
.sw-item p{margin:0;font-size:13.5px;line-height:1.55;color:var(--text-muted)}

/* badges */
.badges{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.badge{font:700 12px/1 var(--sans);padding:7px 13px;border-radius:999px}
.badge-red{background:var(--red);color:#fff}
.badge-dark{background:var(--graphite);color:#fff}
.badge-ai{background:var(--rose);color:var(--red-bg-hover)}
.badge-line{border:1.5px solid rgba(0,0,0,.18);color:var(--text)}

/* steps */
.steps{counter-reset:s;display:grid;gap:16px}
.step{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px 26px;position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font:700 13px/1 var(--mono);color:var(--red);display:block;margin-bottom:10px;letter-spacing:.1em}
.step h3{font-size:16px;margin-bottom:7px}
.step p{font-size:14px;color:var(--text-muted);line-height:1.6;margin:0}

/* CTA band */
.cta-band{background:var(--graphite);border-radius:18px;padding:56px;position:relative;overflow:hidden;color:#fff}
.cta-band h2{font-weight:800;font-size:clamp(24px,3vw,34px);letter-spacing:-.02em;margin-bottom:14px}
.cta-band p{color:var(--on-dark);max-width:460px;margin:0 0 26px;font-size:16px}

/* forms */
.form{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:32px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px}
.field label{font-weight:600;font-size:13px}
.field input,.field textarea{font:400 15px var(--sans);padding:12px 14px;border:1.5px solid var(--line-2);border-radius:calc(var(--radius) - 2px);background:#fff;outline:none;transition:border-color .15s;color:var(--text)}
.field input:focus,.field textarea:focus{border-color:var(--red)}
.field textarea{min-height:120px;resize:vertical}
.form-note{font-size:12.5px;color:var(--text-muted);margin-top:4px}

/* contact info */
.info-row{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-row:last-child{border-bottom:none}
.info-row .k{font:500 11px/1.4 var(--mono);color:var(--gray);text-transform:uppercase;letter-spacing:.1em;width:120px;flex:none;padding-top:2px}
.info-row .v{font-size:15px;color:var(--text)}
.muted-tag{font:500 11px/1 var(--mono);color:var(--gray);letter-spacing:.06em}

/* ===== FOOTER ===== */
.site-footer{background:var(--graphite);color:#fff;padding:56px 0 30px;margin-top:20px}
.footer-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .mark i:nth-child(2){background:#fff;opacity:1}
.footer-brand .mark i:nth-child(3){background:#fff;opacity:.45}
.footer-brand b{color:#fff}
.footer-brand p{color:var(--on-dark);font-size:14px;max-width:320px;margin:14px 0 0;line-height:1.6}
.footer-cols{display:flex;gap:56px;flex-wrap:wrap}
.footer-col h5{font:600 11px/1 var(--mono);color:var(--gray);letter-spacing:.14em;text-transform:uppercase;margin:0 0 14px}
.footer-col a{display:block;color:var(--on-dark);font-size:14px;margin-bottom:9px}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:22px;font:500 12px/1.6 var(--mono);color:var(--gray)}

/* page head */
.page-head{padding:64px 0 8px}
.page-head h1{font-weight:800;font-size:clamp(30px,4.4vw,46px);letter-spacing:-.02em;margin-bottom:14px}
.page-head p{font-size:18px;color:var(--text-muted);max-width:640px;line-height:1.6}

.divider{height:1px;background:var(--line);margin:0}

/* ===== RESPONSIVE ===== */
@media (max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-top{flex-direction:column}
}
@media (max-width:680px){
  .nav-links{position:fixed;inset:66px 0 auto 0;background:var(--bg);flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 20px;border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;font-size:16px;width:100%}
  .nav-links .nav-cta{margin-top:8px}
  .burger{display:flex}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .cta-band{padding:36px 26px}
  .section{padding:52px 0}
  .info-row{flex-direction:column;gap:4px}
  .info-row .k{width:auto}
}