/* RAIL INTERVENTION - industrial premium */
:root{
  --bg:#0b0f14;
  --bg-2:#11171f;
  --surface:#161e29;
  --line:#1f2a38;
  --text:#e6edf3;
  --muted:#9aa7b6;
  --accent:#ff6a00;
  --accent-2:#ffb27a;
  --ok:#22c55e;
  --maxw:1180px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Arial,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a,button{word-wrap:break-word;overflow-wrap:break-word}
a{color:var(--accent-2);text-decoration:none}
a:hover{color:var(--accent)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,15,20,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{position:relative;display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:24px;flex-wrap:nowrap}
.brand{font-weight:800;letter-spacing:.5px;color:#fff;font-size:18px;display:flex;align-items:center;gap:10px}
.brand .dot{width:10px;height:10px;background:var(--accent);border-radius:2px;display:inline-block}
.menu{display:flex;gap:22px}
.menu a{color:var(--text);font-size:15px;font-weight:500}
.menu a:hover{color:var(--accent)}
.menu a.active{color:var(--accent)}
.nav-cta{display:flex;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:6px;font-weight:600;font-size:15px;border:1px solid transparent;transition:all .15s;cursor:pointer;white-space:nowrap;min-height:44px;touch-action:manipulation}
.btn-primary{background:var(--accent);color:#0b0f14}
.btn-primary:hover{background:#ff7d1f;color:#0b0f14}
.btn-ghost{border-color:var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{padding:16px 24px;font-size:16px}
.burger{display:none;background:none;border:0;color:#fff;font-size:28px;cursor:pointer;padding:8px;min-width:44px;min-height:44px;line-height:1}

/* Hero */
.hero{padding:80px 0 64px;background:radial-gradient(1200px 500px at 80% -10%,rgba(255,106,0,.18),transparent 60%),linear-gradient(180deg,#0b0f14,#0d131a)}
.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);margin-bottom:16px;font-weight:700}
.h1{font-size:clamp(32px,5vw,52px);line-height:1.08;margin:0 0 18px;font-weight:800;color:#fff;letter-spacing:-.5px}
.h2{font-size:clamp(24px,3vw,34px);line-height:1.2;margin:0 0 16px;font-weight:800;color:#fff;letter-spacing:-.3px}
.h3{font-size:20px;margin:0 0 8px;color:#fff;font-weight:700}
.lead{font-size:18px;color:var(--muted);margin:0 0 28px;max-width:60ch}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-meta{margin-top:24px;display:flex;gap:24px;color:var(--muted);font-size:14px;flex-wrap:wrap}
.hero-meta span::before{content:"●";color:var(--accent);margin-right:8px}
.hero-art{position:relative;border:1px solid var(--line);border-radius:14px;background:linear-gradient(180deg,#10171f,#0c1218);padding:28px;min-height:340px;overflow:hidden}
.hero-art::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,rgba(255,106,0,.05) 0 12px,transparent 12px 24px)}
.hero-art .specs{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.spec{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:8px;padding:14px}
.spec b{color:#fff;display:block;font-size:22px;margin-bottom:4px}
.spec span{color:var(--muted);font-size:13px}

/* Sections */
section{padding:72px 0;border-top:1px solid var(--line)}
section.tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head p{color:var(--muted);font-size:17px;margin:0}

/* Grids */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* Cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:26px;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card .ico{width:42px;height:42px;border-radius:8px;background:rgba(255,106,0,.12);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:16px}
.card p{color:var(--muted);margin:0 0 16px}
.card a.more{color:var(--accent);font-weight:600;font-size:14px}

/* Process steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:26px;position:relative}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:18px;right:22px;font-size:36px;font-weight:800;color:rgba(255,106,0,.25)}
.step h3{margin-bottom:6px}
.step p{color:var(--muted);margin:0}

/* Why list */
.why{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.why .item{padding:22px;border-left:3px solid var(--accent);background:var(--bg-2);border-radius:0 8px 8px 0}
.why .item h3{margin-bottom:6px}
.why .item p{color:var(--muted);margin:0}

/* CTA banner */
.cta-band{background:linear-gradient(135deg,#1a232f,#11171f);border:1px solid var(--line);border-radius:16px;padding:48px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h2{margin:0 0 6px;color:#fff;font-size:28px}
.cta-band p{margin:0;color:var(--muted)}

/* Footer */
.site-footer{padding:56px 0 28px;border-top:1px solid var(--line);background:#070b10;color:var(--muted);font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-grid h4{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:1px;margin:0 0 14px}
.footer-grid a{color:var(--muted);display:block;padding:4px 0}
.footer-grid a:hover{color:var(--accent)}
.copyright{padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* Forms */
.form{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:28px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}
.form input,.form textarea,.form select{width:100%;background:var(--bg);border:1px solid var(--line);color:var(--text);padding:12px 14px;border-radius:8px;font-size:15px;font-family:inherit}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.form textarea{min-height:120px;resize:vertical}
.form .submit{margin-top:18px}

/* Contact info */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.info-block{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:24px;margin-bottom:14px}
.info-block .lbl{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin-bottom:6px}
.info-block .val{font-size:20px;color:#fff;font-weight:700}
.info-block .val a{color:#fff}
.info-block .val a:hover{color:var(--accent)}

/* Service detail */
.service-row{display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:start;padding:36px 0;border-bottom:1px solid var(--line)}
.service-row:last-child{border-bottom:0}
.service-row ul{margin:0;padding-left:18px;color:var(--muted)}
.service-row ul li{margin-bottom:6px}
.service-side{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:22px}
.service-side .lbl{font-size:12px;text-transform:uppercase;color:var(--muted);letter-spacing:1px;margin-bottom:6px}

/* Coverage list */
.coverage{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.coverage .box{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{background:rgba(255,106,0,.1);color:var(--accent-2);border:1px solid rgba(255,106,0,.3);padding:6px 12px;border-radius:999px;font-size:13px}

/* Cookie banner */
#cookie-banner{position:fixed;left:16px;right:16px;bottom:16px;z-index:100;background:#0d131a;border:1px solid var(--accent);border-radius:12px;padding:18px 22px;display:none;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;box-shadow:0 12px 40px rgba(0,0,0,.5);max-width:1100px;margin:0 auto}
#cookie-banner.show{display:flex}
#cookie-banner p{margin:0;color:var(--text);font-size:14px;flex:1;min-width:240px}
#cookie-banner a{color:var(--accent)}
#cookie-banner .actions{display:flex;gap:8px}
#cookie-banner button{cursor:pointer;border:1px solid var(--line);background:transparent;color:var(--text);padding:10px 16px;border-radius:6px;font-weight:600;font-size:14px}
#cookie-banner button.primary{background:var(--accent);color:#0b0f14;border-color:var(--accent)}

/* Tablet & mobile */
@media (max-width: 980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 880px){
  .container{padding:0 20px}
  .hero{padding:48px 0 36px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .grid-3,.grid-4,.steps,.why,.contact-grid,.coverage,.service-row,.footer-grid,.form .row{grid-template-columns:1fr}
  .footer-grid{gap:24px}
  .menu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg-2);flex-direction:column;padding:18px 24px;border-bottom:1px solid var(--line);border-top:1px solid var(--line);gap:0;z-index:60}
  .menu.open{display:flex}
  .menu a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .menu a:last-child{border-bottom:0}
  .burger{display:block}
  .nav-cta .btn-ghost{display:none}
  .nav-cta .btn-primary{padding:10px 14px;font-size:14px;min-height:42px}
  .brand{font-size:16px}
  .cta-band{padding:28px;text-align:center;flex-direction:column}
  .cta-band .hero-cta{justify-content:center;width:100%}
  .cta-band .btn{width:100%}
  section{padding:48px 0}
  .h1{font-size:32px}
  .h2{font-size:24px}
  .lead{font-size:16px}
  .hero-art{padding:20px;min-height:0}
  .hero-meta{gap:14px;font-size:13px}
  .service-row{padding:28px 0;gap:20px}
  .form{padding:22px}
  .info-block .val{font-size:18px;word-break:break-word}
  #cookie-banner{left:12px;right:12px;bottom:12px;padding:14px 16px}
  #cookie-banner .actions{width:100%;justify-content:stretch}
  #cookie-banner button{flex:1;min-height:44px}
}
@media (max-width: 480px){
  .container{padding:0 16px}
  .nav{gap:8px;padding:12px 0}
  .brand{font-size:14px}
  .brand .dot{width:8px;height:8px}
  .nav-cta .btn-primary{padding:9px 12px;font-size:13px}
  .h1{font-size:28px;line-height:1.15}
  .h2{font-size:22px}
  .hero{padding:36px 0 28px}
  section{padding:40px 0}
  .card{padding:22px}
  .step{padding:22px}
  .step::before{font-size:30px;top:14px;right:18px}
  .cta-band{padding:24px}
  .cta-band h2{font-size:22px}
  .hero-cta .btn-lg{padding:14px 18px;font-size:15px;width:100%}
  .info-block{padding:20px}
  .info-block .val{font-size:17px}
  .form .submit{width:100%}
  .tag{font-size:12px;padding:5px 10px}
}