:root{
  --concrete:#4A4E54;
  --concrete-dark:#2B2E33;
  --slate:#EDEEEF;
  --safety:#F26B21;
  --safety-deep:#D0550F;
  --ink:#232629;
  --ink-soft:#6B6F75;
  --line:#DBDDE0;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'IBM Plex Sans',sans-serif;background:#fff;color:var(--ink);line-height:1.6;}
h1,h2,h3{font-family:'Archivo',sans-serif;font-weight:700;letter-spacing:-0.01em;}
a{text-decoration:none;color:inherit;}
.wrap{max-width:1140px;margin:0 auto;padding:0 28px;}
section{padding:82px 0;}
@media(max-width:768px){section{padding:52px 0;} .wrap{padding:0 20px;}}

nav{background:var(--concrete-dark);position:sticky;top:0;z-index:50;}
.nav-inner{max-width:1140px;margin:0 auto;padding:18px 28px;display:flex;align-items:center;justify-content:space-between;}
.logo{font-family:'Archivo',sans-serif;font-size:22px;font-weight:800;color:#fff;}
.logo span{color:var(--safety);}
.nav-links{display:flex;gap:28px;list-style:none;}
.nav-links a{font-weight:600;font-size:14px;color:#B0B4B9;}
.nav-links a:hover{color:#fff;}
.nav-cta{background:var(--safety);color:#fff;padding:11px 22px;font-weight:700;font-size:14px;}
@media(max-width:700px){.nav-links{display:none;}}

.demo-banner{background:#17191C;color:#fff;text-align:center;padding:10px 20px;font-size:13px;}
.demo-banner a{color:var(--safety);font-weight:700;text-decoration:underline;}

.hero{background:var(--concrete-dark);color:#fff;padding:90px 0;position:relative;overflow:hidden;}
.hero::before{content:'';position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(242,107,33,0.05) 0px,rgba(242,107,33,0.05) 12px,transparent 12px,transparent 40px);}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 0.9fr;gap:50px;align-items:center;}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;}}
.hero h1{font-size:clamp(32px,4.6vw,52px);line-height:1.08;margin-bottom:18px;}
.hero h1 span{color:var(--safety);}
.hero p{color:#B0B4B9;font-family:'IBM Plex Sans',sans-serif;font-size:16px;max-width:460px;margin-bottom:28px;}
.btn-primary{background:var(--safety);color:#fff;padding:15px 30px;font-weight:700;font-size:14px;display:inline-block;}
.btn-ghost{padding:15px 30px;font-weight:700;font-size:14px;color:#fff;border:1px solid rgba(255,255,255,0.3);display:inline-block;margin-left:12px;}
.industrial-visual{aspect-ratio:4/3;background:linear-gradient(160deg,#5C6066,var(--concrete-dark) 70%);position:relative;}
.industrial-visual::after{content:'🏭';position:absolute;bottom:20px;right:20px;font-size:50px;opacity:.8;}

.stats-bar{background:var(--slate);border-bottom:1px solid var(--line);}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);max-width:1140px;margin:0 auto;padding:0 28px;}
.stat{padding:28px 20px;text-align:center;border-left:1px solid var(--line);}
.stat:first-child{border-left:none;}
.stat .num{font-family:'Archivo',sans-serif;font-size:28px;font-weight:800;color:var(--concrete-dark);}
.stat .label{color:var(--ink-soft);font-size:12.5px;margin-top:2px;}
@media(max-width:700px){.stats-inner{grid-template-columns:1fr 1fr;} .stat{border-left:none;border-top:1px solid var(--line);}}

.section-head{max-width:620px;margin-bottom:46px;}
.kicker{font-size:13px;letter-spacing:.06em;color:var(--safety-deep);text-transform:uppercase;margin-bottom:10px;display:block;font-weight:700;}
.section-head h2{font-size:clamp(26px,3.4vw,38px);color:var(--concrete-dark);}
.section-head p{color:var(--ink-soft);margin-top:12px;}

.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
@media(max-width:860px){.product-grid{grid-template-columns:1fr;}}
.product-card{background:#fff;}
.product-visual{aspect-ratio:4/3;}
.product-visual.v1{background:linear-gradient(150deg,#8B8F94,var(--concrete-dark));}
.product-visual.v2{background:linear-gradient(150deg,var(--safety),var(--safety-deep));}
.product-visual.v3{background:linear-gradient(150deg,#6B6F75,#2B2E33);}
.product-body{padding:24px 22px;}
.product-body h3{font-size:18px;margin-bottom:8px;}
.product-body p{color:var(--ink-soft);font-size:13.5px;margin-bottom:12px;}
.product-price{font-family:'Archivo',sans-serif;color:var(--safety-deep);font-weight:800;font-size:16px;}

.cert-band{background:var(--concrete);color:#fff;}
.cert-band h2{color:#fff;}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;}
@media(max-width:700px){.cert-grid{grid-template-columns:repeat(2,1fr);}}
.cert-tile{background:rgba(255,255,255,0.06);padding:26px;text-align:center;}
.cert-tile .c-icon{font-size:30px;margin-bottom:10px;}
.cert-tile p{font-size:13px;color:#D6D8DA;}

.testi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);}
.testi-card{background:#fff;padding:28px;}
.testi-text{color:var(--ink);font-size:14.5px;margin-bottom:14px;}
.testi-name{font-weight:700;font-size:13px;color:var(--concrete-dark);}

.cta-band{background:var(--safety);text-align:center;color:#fff;}
.cta-band h2{color:#fff;}
.cta-band p{color:#FFE0CC;margin-bottom:24px;}
.cta-band .btn-primary{background:var(--concrete-dark);}

footer{background:#17191C;color:#8A8E93;padding:36px 0;text-align:center;font-size:13px;}
footer a{color:#fff;}

.pricing-table{width:100%;border-collapse:collapse;}
.pricing-table th{text-align:left;padding:14px 16px;background:var(--concrete-dark);color:#fff;font-family:'Archivo',sans-serif;text-transform:uppercase;font-size:13px;}
.pricing-table td{padding:14px 16px;border-bottom:1px solid var(--line);font-size:14px;}
.pricing-table tr:nth-child(even) td{background:var(--slate);}
.pricing-table .price-cell{font-weight:700;color:var(--safety-deep);white-space:nowrap;}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr;}}
.contact-detail{display:flex;flex-direction:column;margin-top:20px;}
.contact-detail div{padding:16px 0;border-top:1px solid var(--line);}
.c-label{font-size:11px;color:var(--safety-deep);font-weight:800;text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;}
.form-card{background:var(--slate);border:1px solid var(--line);padding:30px;}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:12px;font-weight:700;text-transform:uppercase;margin-bottom:6px;color:var(--ink-soft);}
.form-row input,.form-row select{width:100%;padding:12px 14px;border:1px solid var(--line);font-family:inherit;font-size:14px;background:#fff;}
.form-submit{width:100%;background:var(--safety);color:#fff;border:none;padding:15px;font-weight:700;font-size:14px;cursor:pointer;}