/* Guseynov Solutions — industrial corporate theme */
:root{
  --bg:#0a0e14; --bg2:#0e141d; --panel:#131a24; --panel2:#182130; --line:#223040; --line2:#2c3e55;
  --txt:#e9eef4; --mut:#9aa7b5; --mut2:#6f7e8f;
  --acc:#ff7a1a; --acc2:#ff9440; --acc-dim:rgba(255,122,26,.12); --ok:#2ecc71;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;overflow-x:hidden;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.logo,.kicker,.btn,.stat b{font-family:'Montserrat',-apple-system,"Segoe UI",Arial,sans-serif}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--acc);color:#0a0e14}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(10,14,20,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:17.5px;letter-spacing:.6px}
.logo svg{width:34px;height:34px;flex:0 0 auto}
.logo b{color:var(--acc);font-weight:700}
.nav-links{display:flex;align-items:center;gap:28px;font-size:14.5px;color:var(--mut)}
.nav-links a{transition:color .18s}
.nav-links a:hover{color:var(--txt)}
.lang{font-size:12.5px;color:var(--mut);border:1px solid var(--line2);padding:5px 11px;border-radius:6px;letter-spacing:.5px}
.lang:hover{border-color:var(--acc);color:var(--acc)}
.nav-cta{background:var(--acc);color:#0a0e14;font-weight:700;font-size:14px;padding:10px 20px;border-radius:8px;transition:background .18s;white-space:nowrap}
.nav-cta:hover{background:var(--acc2)}
.burger{display:none;background:none;border:0;color:var(--txt);cursor:pointer;width:42px;height:42px;align-items:center;justify-content:center}
.burger svg{width:24px;height:24px}
@media(max-width:900px){
  .nav-links,.nav .nav-cta{display:none}
  .burger{display:flex}
  .nav-links.open{display:flex;position:fixed;top:70px;left:0;right:0;flex-direction:column;align-items:flex-start;background:#0e141d;padding:20px 24px 26px;gap:18px;border-bottom:1px solid var(--line2);box-shadow:0 24px 40px rgba(0,0,0,.5)}
}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;min-height:88vh;display:flex;align-items:center;padding:150px 0 110px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-2;background-size:cover;background-position:center 35%}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:
  linear-gradient(90deg,rgba(10,14,20,.95) 0%,rgba(10,14,20,.82) 42%,rgba(10,14,20,.45) 75%,rgba(10,14,20,.65) 100%),
  linear-gradient(180deg,rgba(10,14,20,.55) 0%,transparent 30%,transparent 55%,var(--bg) 100%)}
.hero-inner{max-width:760px}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:2.4px;text-transform:uppercase;color:var(--acc2);border:1px solid rgba(255,122,26,.4);background:rgba(10,14,20,.45);padding:8px 16px;border-radius:24px;margin-bottom:26px;font-weight:600}
.kicker::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--acc)}
h1{font-size:clamp(32px,4.8vw,58px);line-height:1.08;font-weight:800;letter-spacing:-.5px}
h1 span{color:var(--acc)}
.sub{color:#c3ccd7;font-size:clamp(16px,1.5vw,19px);margin:24px 0 36px;max-width:600px;line-height:1.75}
.cta-row{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 28px;border-radius:10px;font-weight:700;font-size:15.5px;transition:transform .2s,background .18s,border-color .18s,color .18s}
.btn-a{background:var(--acc);color:#0a0e14;box-shadow:0 8px 24px rgba(255,122,26,.25)}
.btn-a:hover{background:var(--acc2);transform:translateY(-2px)}
.btn-o{border:1.5px solid var(--line2);color:var(--txt);background:rgba(10,14,20,.4)}
.btn-o:hover{border-color:var(--acc);color:var(--acc)}
@media(max-width:900px){.hero{min-height:0;padding:130px 0 90px}}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:-58px;position:relative;z-index:2}
.stat{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line2);border-radius:14px;padding:26px 24px;text-align:center;box-shadow:0 16px 40px rgba(0,0,0,.35)}
.stat b{display:block;font-size:clamp(30px,3vw,38px);color:var(--acc);font-weight:800;line-height:1.1}
.stat span{color:var(--mut);font-size:13.5px;display:block;margin-top:6px}
@media(max-width:860px){.stats{grid-template-columns:repeat(2,1fr);margin-top:-46px}}

/* ---------- sections ---------- */
section{padding:96px 0}
.sec-k{color:var(--acc);font-size:12.5px;letter-spacing:2.6px;text-transform:uppercase;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:12px}
.sec-k::before{content:"";width:26px;height:2px;background:var(--acc)}
h2{font-size:clamp(26px,3.4vw,40px);font-weight:800;margin-bottom:16px;letter-spacing:-.3px;line-height:1.15}
.sec-sub{color:var(--mut);max-width:680px;margin-bottom:52px;font-size:16.5px}
.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media(max-width:700px){section{padding:68px 0}}

/* ---------- cards ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
@media(max-width:960px){.grid3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid3,.grid2{grid-template-columns:1fr}}
.card{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:16px;padding:32px 28px;transition:transform .25s,border-color .25s,box-shadow .25s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--acc),transparent 70%);opacity:0;transition:opacity .25s}
.card:hover{transform:translateY(-5px);border-color:var(--line2);box-shadow:0 18px 44px rgba(0,0,0,.35)}
.card:hover::before{opacity:1}
.card .ic{width:52px;height:52px;border-radius:13px;background:var(--acc-dim);display:flex;align-items:center;justify-content:center;margin-bottom:20px;color:var(--acc)}
.card .ic svg{width:26px;height:26px}
.card h3{font-size:18.5px;margin-bottom:10px;letter-spacing:-.1px}
.card p{color:var(--mut);font-size:14.5px}
.card .more{display:inline-flex;align-items:center;gap:8px;margin-top:16px;color:var(--acc);font-size:14px;font-weight:600}
.card .more svg{width:15px;height:15px;transition:transform .2s}
.card:hover .more svg{transform:translateX(4px)}
/* card with product photo */
.card-img{padding:0}
.card-img .ph{height:200px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:15px 15px 0 0;overflow:hidden}
.card-img .ph img{width:100%;height:100%;object-fit:contain;padding:20px}
.card-img .bd{padding:26px 26px 30px}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.chip{border:1px solid var(--line2);border-radius:24px;padding:9px 18px;font-size:14px;color:var(--mut);background:var(--panel);transition:.2s}
.chip:hover{border-color:var(--acc);color:var(--txt)}

/* ---------- brands / clients ---------- */
.clients{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:700px){.clients{grid-template-columns:repeat(2,1fr)}}
.client{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px 20px 26px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;transition:.25s}
.client:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(0,0,0,.4)}
.client img{width:92px;height:92px;object-fit:contain;filter:grayscale(1) contrast(1.05);opacity:.68;transition:.25s}
.client:hover img{filter:none;opacity:1}
.client span{color:#5a6675;font-size:13.5px;letter-spacing:.4px;font-weight:600}
.client:hover span{color:#1a2330}
.brands{display:flex;flex-wrap:wrap;gap:14px;margin-top:44px}
.brand{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 22px;font-weight:600;letter-spacing:.4px;color:var(--mut);font-size:14.5px;transition:.2s}
.brand:hover{color:var(--txt);border-color:rgba(255,122,26,.4)}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
@media(max-width:860px){.about-grid{grid-template-columns:1fr;gap:40px}}
.about-photo{position:relative}
.about-photo img{border-radius:18px;width:100%;height:420px;object-fit:cover;border:1px solid var(--line2)}
.about-photo::after{content:"";position:absolute;inset:0;border-radius:18px;background:linear-gradient(180deg,transparent 55%,rgba(10,14,20,.55))}
.about-txt p{color:var(--mut);font-size:16px;margin-bottom:18px}
.about-txt a{color:var(--acc);font-weight:600}
.about-txt a:hover{color:var(--acc2)}

/* ---------- faq ---------- */
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;transition:border-color .2s}
.faq details:hover{border-color:var(--line2)}
.faq details[open]{border-color:rgba(255,122,26,.45)}
.faq summary{cursor:pointer;padding:20px 24px;font-weight:600;font-size:16.5px;list-style:none;position:relative;padding-right:52px;font-family:'Montserrat',sans-serif}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:22px;top:50%;width:11px;height:11px;border-right:2px solid var(--acc);border-bottom:2px solid var(--acc);transform:translateY(-65%) rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-35%) rotate(225deg)}
.faq .a{padding:0 24px 22px;color:var(--mut);font-size:15.5px}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr;gap:44px}}
.c-line{display:flex;align-items:flex-start;gap:16px;margin-bottom:24px}
.c-line .ic{flex:0 0 46px;height:46px;border-radius:12px;background:var(--acc-dim);display:flex;align-items:center;justify-content:center;color:var(--acc)}
.c-line .ic svg{width:22px;height:22px}
.c-line b{display:block;font-size:12px;text-transform:uppercase;letter-spacing:1.6px;color:var(--mut2);margin-bottom:4px;font-family:'Montserrat',sans-serif}
.c-line span,.c-line a{color:var(--txt);font-size:16px}
.c-line a:hover{color:var(--acc)}
.msg-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.msg-btns a{border:1px solid var(--line2);border-radius:10px;padding:10px 18px;font-size:14.5px;display:inline-flex;gap:9px;align-items:center;color:var(--txt);background:var(--panel);transition:.2s}
.msg-btns a svg{width:17px;height:17px;color:var(--acc)}
.msg-btns a:hover{border-color:var(--acc);color:var(--acc)}
form{display:flex;flex-direction:column;gap:16px;background:var(--panel);border:1px solid var(--line2);border-radius:18px;padding:34px}
input,textarea{background:var(--bg);border:1px solid var(--line2);border-radius:10px;padding:14px 17px;color:var(--txt);font:inherit;font-size:15.5px;transition:border-color .18s}
input::placeholder,textarea::placeholder{color:var(--mut2)}
input:focus,textarea:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 3px rgba(255,122,26,.15)}
form .btn{justify-content:center;border:0;cursor:pointer;font-family:'Montserrat',sans-serif}

/* ---------- CTA band ---------- */
.cta-band{position:relative;isolation:isolate;background-size:cover;background-position:center 40%;text-align:center;padding:110px 0}
.cta-band::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(10,14,20,.9),rgba(10,14,20,.82))}
.cta-band h2{margin-bottom:14px}
.cta-band p{color:#c3ccd7;max-width:560px;margin:0 auto 34px;font-size:17px}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.rv.on{opacity:1;transform:none}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:48px 0;color:var(--mut);font-size:14px}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot a{color:var(--mut);transition:color .18s}
.foot a:hover{color:var(--acc)}