@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&display=swap');

:root{
  --bg:#0D0F12;
  --bg-panel:#14171C;
  --bg-panel-2:#191D24;
  --text:#EDEFF2;
  --muted:#8A93A3;
  --accent:#4C8DFF;
  --accent-2:#00D9A3;
  --border:#262B33;
  --radius:2px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',sans-serif;
  line-height:1.55;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
h1,h2,h3,.logo{font-family:'Space Grotesk',sans-serif;font-weight:600;letter-spacing:-0.01em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}

.container{width:100%;max-width:1120px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  border-bottom:1px solid var(--border);
  position:sticky;top:0;background:rgba(13,15,18,.92);backdrop-filter:blur(6px);
  z-index:50;
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-size:1.25rem;display:flex;align-items:baseline;gap:6px}
.logo span{color:var(--accent-2)}
.nav{display:flex;gap:32px}
.nav a{
  color:var(--muted);font-size:.95rem;font-weight:500;padding:4px 0;border-bottom:2px solid transparent;
  transition:color .15s ease,border-color .15s ease;
}
.nav a:hover,.nav a.active{color:var(--text);border-color:var(--accent)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:4px}
.nav-toggle span{width:22px;height:2px;background:var(--text)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;font-family:'Inter',sans-serif;font-weight:600;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease;
}
.btn-primary{background:var(--accent);color:#06090F}
.btn-primary:hover{background:#6fa2ff}
.btn-outline{border-color:var(--border);color:var(--text);background:transparent}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- Hero ---------- */
.hero{border-bottom:1px solid var(--border);position:relative;overflow:hidden}
.hero .container{padding-top:88px;padding-bottom:88px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow-line{width:48px;height:2px;background:var(--accent-2);margin-bottom:20px}
.hero h1{font-size:clamp(2.1rem,4vw,3.2rem);line-height:1.12;margin-bottom:20px}
.hero p{color:var(--muted);max-width:46ch;margin-bottom:32px;font-size:1.05rem}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-diagram{border:1px solid var(--border);background:var(--bg-panel);aspect-ratio:1/1;position:relative}
.hero-diagram svg{width:100%;height:100%}

/* ---------- Sections ---------- */
.section{padding:76px 0;border-bottom:1px solid var(--border)}
.section:last-of-type{border-bottom:none}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:1.8rem}
.section-head p{color:var(--muted);max-width:48ch}
.page-header{padding:56px 0 40px;border-bottom:1px solid var(--border)}
.page-header h1{font-size:2.2rem;margin-bottom:12px}
.page-header p{color:var(--muted);max-width:60ch}

/* ---------- Grids / Cards ---------- */
.grid{display:grid;gap:1px;background:var(--border);border:1px solid var(--border)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--bg-panel);padding:28px}
.card h3{font-size:1.05rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.92rem}

.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);margin-top:56px}
.stat{background:var(--bg-panel);padding:24px;text-align:left}
.stat b{display:block;font-family:'Space Grotesk',sans-serif;font-size:1.9rem;color:var(--accent-2)}
.stat span{color:var(--muted);font-size:.85rem}

/* ---------- Catalog ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.filter-btn{
  border:1px solid var(--border);background:transparent;color:var(--muted);
  padding:9px 18px;font-size:.88rem;font-family:'Inter',sans-serif;cursor:pointer;transition:.15s ease;
}
.filter-btn:hover{color:var(--text)}
.filter-btn.active{background:var(--accent);border-color:var(--accent);color:#06090F}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border)}
.product{background:var(--bg-panel);padding:26px;transition:opacity .2s ease}
.product.hidden{display:none}
.product-tag{color:var(--accent-2);font-size:.78rem;font-weight:600;margin-bottom:10px;display:block}
.product h3{font-size:1.05rem;margin-bottom:8px}
.product p{color:var(--muted);font-size:.88rem;margin-bottom:16px}
.product-price{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border);padding-top:14px}
.product-price b{font-family:'Space Grotesk',sans-serif;font-size:1.1rem}
.product-price button{
  border:1px solid var(--border);background:transparent;color:var(--muted);
  padding:6px 14px;font-size:.82rem;cursor:pointer;
}
.product-price button:hover{border-color:var(--accent-2);color:var(--accent-2)}
.empty-msg{color:var(--muted);padding:40px 0;text-align:center;display:none}
.empty-msg.show{display:block}

/* ---------- Services / FAQ ---------- */
.service-list{display:flex;flex-direction:column;gap:1px;background:var(--border);border:1px solid var(--border)}
.service-row{background:var(--bg-panel);padding:24px 28px;display:grid;grid-template-columns:2fr 3fr 1fr;gap:20px;align-items:center}
.service-row h3{font-size:1rem}
.service-row p{color:var(--muted);font-size:.88rem}
.service-row .price{text-align:right;font-family:'Space Grotesk',sans-serif;color:var(--accent-2)}

.faq-item{border-bottom:1px solid var(--border)}
.faq-q{
  width:100%;text-align:left;background:none;border:0;color:var(--text);
  padding:20px 0;font-family:'Space Grotesk',sans-serif;font-size:1rem;font-weight:600;
  display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:20px;
}
.faq-q::after{content:'+';color:var(--accent);font-size:1.3rem;transition:transform .2s ease}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{color:var(--muted);padding-bottom:20px;font-size:.92rem;max-width:65ch}

/* ---------- About ---------- */
.timeline{display:flex;flex-direction:column;gap:0;margin-top:12px}
.timeline-item{display:grid;grid-template-columns:100px 1fr;gap:24px;padding:24px 0;border-bottom:1px solid var(--border)}
.timeline-item:last-child{border-bottom:none}
.timeline-item b{font-family:'Space Grotesk',sans-serif;color:var(--accent)}
.timeline-item p{color:var(--muted);font-size:.92rem}

.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);margin-top:40px}
.team-card{background:var(--bg-panel);padding:24px}
.team-avatar{width:44px;height:44px;border:1px solid var(--accent-2);display:flex;align-items:center;justify-content:center;font-family:'Space Grotesk',sans-serif;color:var(--accent-2);margin-bottom:16px}
.team-card b{display:block;font-size:.95rem;margin-bottom:2px}
.team-card span{color:var(--muted);font-size:.82rem}

/* ---------- Contacts ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);border:1px solid var(--border)}
.contact-info,.contact-form{background:var(--bg-panel);padding:36px}
.contact-info dl{display:flex;flex-direction:column;gap:20px;margin-top:24px}
.contact-info dt{color:var(--muted);font-size:.8rem;margin-bottom:4px}
.contact-info dd{font-size:1rem}
.map-block{border:1px solid var(--border);height:160px;margin-top:28px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.85rem;background:
  repeating-linear-gradient(0deg,transparent,transparent 19px,var(--border) 20px),
  repeating-linear-gradient(90deg,transparent,transparent 19px,var(--border) 20px);
}

.field{margin-bottom:18px}
.field label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:8px}
.field input,.field textarea{
  width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);
  padding:12px 14px;font-family:'Inter',sans-serif;font-size:.95rem;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.field textarea{resize:vertical;min-height:100px}
.field-error{color:#ff6b6b;font-size:.8rem;margin-top:6px;display:none}
.field.invalid input,.field.invalid textarea{border-color:#ff6b6b}
.field.invalid .field-error{display:block}
.form-status{margin-top:16px;font-size:.9rem;color:var(--accent-2);display:none}
.form-status.show{display:block}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--border);margin-top:auto}
.footer-wrap{padding:48px 0 32px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:32px}
.footer-col h4{font-size:.85rem;color:var(--muted);margin-bottom:14px;font-weight:600}
.footer-col a{display:block;color:var(--text);font-size:.9rem;margin-bottom:10px}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;color:var(--muted);font-size:.82rem;display:flex;justify-content:space-between}

/* ---------- Focus & motion ---------- */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .nav{position:fixed;top:72px;left:0;right:0;background:var(--bg);flex-direction:column;padding:16px 24px;border-bottom:1px solid var(--border);gap:0;display:none}
  .nav.open{display:flex}
  .nav a{padding:12px 0;border-bottom:1px solid var(--border)}
  .nav-toggle{display:flex}
  .hero .container{grid-template-columns:1fr}
  .hero-diagram{order:-1;max-height:220px}
  .grid-3,.product-grid{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .service-row{grid-template-columns:1fr;text-align:left}
  .service-row .price{text-align:left}
  .contact-wrap{grid-template-columns:1fr}
  .timeline-item{grid-template-columns:70px 1fr}
}